Abstract

A non-contact blood pressure monitoring apparatus, method and system for enhancing robustness by using spatial redundancy, which relate to the technical field of non-contact blood pressure monitoring. The method comprises the following main steps: processing an original signal by means of a quality metricImage denoising algorithm, so as to obtain a relatively pure rPPG signal; then, extracting a multi-site PTT and a multi-wavelength PTT from the rPPG signal by means of an adaptive PTT extraction algorithm; and finally, combining feature information of the multi-site PTT with feature information of the multi-wavelength PTT and using a multi-feature model to estimate blood pressure.

IPC Classes  ?

• A61B 5/021 - Measuring pressure in heart or blood vessels
• A61B 5/00 - Measuring for diagnostic purposes Identification of persons

Abstract

Disclosed in the present application are an automatic exposure and gain control method and apparatus for extracting physiological signals. The method comprises: detecting a target area; on the basis of spatiotemporal information, segmenting the target area to obtain a final target area, and calculating and obtaining the average brightness of the final target area; on the basis of the average brightness, calculating and obtaining an error; on the basis of the error, calculating and obtaining an adjustment amount for exposure time and gain; and if the error is greater than an error threshold value, then calculating and obtaining updated exposure time and gain. In the present application, physiological monitoring with a high signal-to-noise ratio is implemented by means of controlling the average brightness of the target area and synchronously adjusting the dynamic weight of the exposure time and analog gain; using dynamic step size adjustment allows image brightness to rapidly reach a balance, and physiological signals can be stably extracted under changing illumination conditions, thus effectively reducing the impact of ambient light changes, facial expressions, and bodily movement on the extraction of physiological signals, improving the accuracy and reliability of physiological parameter measurement.

IPC Classes  ?

• G06T 5/00 - Image enhancement or restoration

Abstract

Disclosed is a brain-on-a-chip intelligence complex control system comprising a basic module and an information interaction and training module. The latter integrates a neural signal decoding unit, reward and punishment control unit, task control model, and mapping relationship model. The neural signal decoding unit transforms neural response data into external device-recognizable control instructions. Employed for controlling the external device, the task control model creates a future target control instruction based on task feedback, retrieving the corresponding neural response. The mapping relationship model establishes connections between the brain-on-a-chip's stimulation sequence and neural responses. Calculating task completion, the reward and punishment control unit generates a reward or punishment signal based on task feedback, applying it to the brain-on-a-chip basic module. This innovative brain-on-a-chip intelligence complex enhances control and training capabilities through integrated modules.

IPC Classes  ?

• G06N 3/00 - Computing arrangements based on biological models
• G06N 3/092 - Reinforcement learning

Abstract

An image display method, an image display apparatus, a device and a storage medium. The method includes, acquiring an original image (S100); performing image analysis on the original image according to a preset image analysis model, so as to obtain a target depth map (S200); performing image synthesis on the target depth map according to a preset virtual viewpoint synthesis algorithm, so as to obtain a plurality of target images of different viewing angles (S300), compiling the plurality of target images of different viewing angles, so as to obtain a target image set (S400); and transmitting the target images in the target image set to different directions by means of a light-splitting device, so as to present the plurality of target images of different viewing angles (S500)

IPC Classes  ?

• G06F 3/14 - Digital output to display device
• G06T 7/50 - Depth or shape recovery

Abstract

The present application provides a method for improving a throughput of compound-protein interaction experiments. In the method of this application, multiple compounds to be tested are composed into multiple mixture systems according to a certain mixing rule, and corresponding relationships between abilities of the compounds to be tested to interact with the protein target and the mixture systems are established, and then the target protein corresponding to the compound to be tested is analyzed in a high-throughput manner. The analysis method of the present application can increase a detection throughput of the existing compound to be tested-target protein experiments by more than 10 times, while saving more than 90% of the experimental cost and time, significantly reducing the cost of manpower, time and experimental consumables, which has significant economic significance.

IPC Classes  ?

• G16B 15/30 - Drug targeting using structural dataDocking or binding prediction
• G16B 40/20 - Supervised data analysis

Abstract

The present invention relates to the technical field of living body detection. Disclosed is a living body detection method based on structured light spot gradient energy, which comprises the following steps: S1, acquiring a structured light image: using an optical imaging device to acquire a structured light image containing human skin; S2, locating all light spots in the structured light image, and acquiring position information of all the light spots; S3, selecting the light spots located in the living body region, calculating the definition of each light spot image by means of an energy gradient function formula, and if there is no light spot meeting a condition or the number of light spots meeting the condition is not more than ten, determining that there is no living body in the image, and marking "no living body is detected in the image" on the top of the original image; and S4, marking out a living body detection result in the structured light image. The present invention overcomes the defect that living body detection based on structured light analysis is difficult to cope with three-dimensional mask attacks, and also achieves location for living body regions in speckle structured light images.

IPC Classes  ?

• G06V 40/40 - Spoof detection, e.g. liveness detection

Abstract

The present invention relates to an environment-adaptive baby cry detection method and system, a storage medium and a device. The environment-adaptive baby cry detection method and system, the storage medium and the device aim to address the technical shortcomings of existing newborn and baby cry detection and recognition methods of performance deterioration in new environments, poor generalization ability, insufficient human calibration and training data, and difficulties in achieving sufficient detection performance in real clinical environments, which are often manifested as low precision and high recall rate. The method comprises the following steps: S1, environment simulation data augmentation based on speech linear superposition characteristics: collecting speech public data sets and collecting public baby cry data, using public labeled data to perform data augmentation, and, by using samples from the environment simulation data augmentation, training a classifier, so as to learn cry characteristics in synthetic chaotic environments; and S2, mutual learning for environment adaptation: by using an exponential moving average method and a pseudo label training mode, establishing an environment-adaptive cry detection learning closed loop, continuously deriving cry data distribution in new environments, and correcting the cry characteristics obtained in step S1, thus implementing environment-adaptive cry detection.

IPC Classes  ?

• G10L 15/08 - Speech classification or search

Abstract

A water-retaining material, including: a polymer chain segment provided by a hydrophilic polymer; and a proton carrier group grafted to the polymer chain segment. The polymer chain segment contains a hydrophilic group. A method for preparing a water-retaining material, includes: performing, in a reaction system including an activator and a catalyst, a grafting reaction between a hydrophilic polymer and a proton carrier compound to yield the water-retaining material. The water-retaining material contains a polymer chain segment containing a hydrophilic group. A water-retaining proton exchange membrane, includes a matrix. The matrix is doped with a water-retaining material; and the water-retaining material including the above water-retaining material.

IPC Classes  ?

• C08F 251/00 - Macromolecular compounds obtained by polymerising monomers on to polysaccharides or derivatives thereof
• B01D 69/12 - Composite membranesUltra-thin membranes
• C08J 5/22 - Films, membranes or diaphragms

Abstract

The present invention relates to the field of the preparation of a self-assembled film, and in particular relates to a preparation method for an electrostatic self-assembled film, and a digital microfluidic chip for implementing the method. The preparation method for an electrostatic self-assembled film comprises the following steps: 1) preparation of a reagent, involving: respectively loading various film-forming liquid drops into corresponding liquid storage tank electrode units of a digital microfluidic chip, coating each of the film-forming liquid drops with silicone oil, loading deionized water into a cleaning liquid storage tank electrode unit, and pre-electrifying each of the liquid storage tank electrode units; and 2) preparation and accumulation of 1st to Nth molecular layer films (wherein N is an integer greater than or equal to 2), involving: preparing the molecular layer films layer by layer, and accumulating same layer by layer at hydrophilic points, thereby forming the electrostatic self-assembled film. By means of the method and the chip in the present invention, rapid preparation of an electrostatic self-assembled film can be achieved; fully-automatic operation and control can be achieved, and the consumption of manpower and reagents can be reduced; parallel synthesis of a variety of electrostatic self-assembled films can be performed at a high flux; and synthesis conditions for electrostatic self-assembled films can be screened.

IPC Classes  ?

• B81C 1/00 - Manufacture or treatment of devices or systems in or on a substrate
• B81B 7/00 - Microstructural systems
• B01L 3/00 - Containers or dishes for laboratory use, e.g. laboratory glasswareDroppers

Abstract

The present disclosure generally relates to high-performance flexible thermoelectric generators (f-TEGs) for heat concentration and dissipation. In some embodiments, the f-TEGs can be incorporated into wearable devices. The f-TEG device can include an f-TEG network of thermoelectric units that include multifunctional thin copper disks that can be used as electrodes, heat concentrators and spreaders, spacers, and flexibility enablers. Each electrode can include a spacer extending therefrom to suppress the heat loss between the hot and the cold sides through conduction and convection across a thermoelectric pillar disposed therebetween. In some embodiments, the f-TEG network can be associated with a fabric to provide good wearability and comfort even in wet thermal environments.

IPC Classes  ?

• H10N 10/17 - Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects operating with only the Peltier or Seebeck effects characterised by the structure or configuration of the cell or thermocouple forming the device

Abstract

A flexible electromyographic electrode array and a preparation method therefor, and an electromyographic signal collection apparatus and an electrophysiological signal collection method. The flexible electromyographic electrode array includes: a flexible substrate (100); several liquid metal electrodes, wherein the liquid metal electrodes are arranged on the flexible substrate (100), and the liquid metal electrodes each include a wire and a circuit board connection pattern (110) which is located at one end of a wire (120); and several electrode contacts (130), wherein each of the electrode contacts (130) is connected to the other end of the wire (120), and the electrode contacts (130) are made of a contact solution which contains a hydrophilic polymer and a poly(3,4-ethylenedioxythiophene)/polystyrene sulfonate.

IPC Classes  ?

• A61B 5/296 - Bioelectric electrodes therefor specially adapted for particular uses for electromyography [EMG]
• A61B 5/257 - Means for maintaining electrode contact with the body using adhesive means, e.g. adhesive pads or tapes
• A61B 5/268 - Bioelectric electrodes therefor characterised by the electrode materials containing conductive polymers, e.g. PEDOT:PSS polymers

Abstract

Disclosed in the present invention is a brain-on-a-chip intelligent complex control system, comprising a brain-on-a-chip basic module and a brain-on-a-chip information exchange and training module. The brain-on-a-chip information exchange and training module comprises a neural signal decoding unit, a reward and punishment control unit, a task control model and a mapping relationship model. The neural signal decoding unit is used for converting neural response data into a control instruction which can be recognized by an external device; the task control model is used for a control task for the external device, the task control model generates a target control instruction for the next time on the basis of task feedback information, and the task control model can obtain, on the basis of a correspondence, a neural response corresponding to the target control instruction; the mapping relationship model is used for constructing a mapping relationship between the stimulation sequence of a brain on a chip and neural responses; and the reward and punishment control unit is used for calculating, on the basis of the task feedback information, the degree of completion of a task executed on the basis of target control instruction, to generate a reward signal or a punishment signal for the brain on a chip, and applying the reward signal or the punishment signal to the brain-on-a-chip basic module.

IPC Classes  ?

• G06N 3/063 - Physical realisation, i.e. hardware implementation of neural networks, neurons or parts of neurons using electronic means

Abstract

The present disclosure relates to the technical field of heat dissipation of electronic elements. Provided is a heat dissipation structure for enhancing interfacial heat transfer of a carbon fiber oriented thermal interface material. The heat dissipation structure for enhancing interface heat transfer of a carbon fiber oriented thermal interface material comprises a carbon fiber oriented thermal interface material layer and an infiltration layer, wherein the infiltration layer comprises a first infiltration layer and a second infiltration layer, the first infiltration layer being provided at the bottom of the carbon fiber oriented thermal interface material layer, and the second infiltration layer being provided at the top of the carbon fiber oriented thermal interface material layer. The technical effect of reducing the number of gaps in the contact surface of a thermal interface is achieved.

IPC Classes  ?

• H01L 23/373 - Cooling facilitated by selection of materials for the device

Abstract

A method for scalable fabrication of ultraflat polycrystalline diamond membranes, comprising: (1) growing a polycrystalline diamond membrane on a growth substrate having diamond seeds on the surface thereof using a chemical vapour deposition method; (2) cutting off at least a portion of the substrate after growth, forming a boundary at the cut where the polycrystalline diamond membrane is bonded to the growth substrate; (3) sticking a peeling tape; and (4) pulling the peeling tape to peel the polycrystalline diamond membrane off the surface of the growth substrate to expose the nucleation surface of the polycrystalline diamond membrane, wherein the exposed nucleation surface has a roughness less than the roughness of the grown surface. By flipping the nucleation surface of the grown polycrystalline diamond membrane, develops a novel and facile approach for fabricating affordable, scalable, ultraflat and transferable polycrystalline diamond membranes with great potential for practical applications.

IPC Classes  ?

• C23C 16/27 - Diamond only
• C23C 16/02 - Pretreatment of the material to be coated
• C23C 16/511 - Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating using electric discharges using microwave discharges

Abstract

Provided in the present disclosure are a chip stacking heat dissipation structure, a three-dimensional stacking packaging system and a manufacturing method. The chip stacking heat dissipation structure comprises: a re-distributed layer, a connecting layer and a chip layer which are successively stacked from bottom to top, a plurality of cooling fins being embedded in the re-distributed layer to form a heat dissipation layer, and the heat dissipation layer and the re-distributed layer being located on the same side of the chip layer. The re-distributed layer and the heat dissipation layer of the present application are both located on the same side of the chip layer, such that the re-distributed layer and the heat dissipation layer occupy relatively smaller spaces, and chip layers are stacked at a higher integration level, thus achieving a greater number of chip lays stacked per unit height, reducing the overall size and the packaging thickness of the chip stacking heat dissipation structure, enabling the chip stacking heat dissipation structure to be applied to more terminal devices having higher requirements for thickness while not losing heat dissipation effects.

IPC Classes  ?

• H01L 23/367 - Cooling facilitated by shape of device
• H01L 23/485 - Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads or terminal arrangements consisting of lead-in layers inseparably applied to the semiconductor body consisting of layered constructions comprising conductive layers and insulating layers, e.g. planar contacts
• H01L 23/31 - Encapsulation, e.g. encapsulating layers, coatings characterised by the arrangement
• H01L 21/56 - Encapsulations, e.g. encapsulating layers, coatings

Abstract

Disclosed in the present invention are a dual-mode temperature regulation e-skin and a preparation method therefor. The dual-mode temperature regulation e-skin comprises a first packaging layer; a foam layer disposed on a surface of the first packaging layer, foam holes in the foam layer being filled with hygroscopic hydrogel; a flexible thermoelectric device disposed on a surface of the foam layer and comprising a plurality of thermoelectric units and first electrodes, the plurality of thermoelectric units being connected in series by using the first electrodes, and the thermoelectric units connected in series being electrically connected to an external power supply; and a second packaging layer disposed on a surface of the flexible thermoelectric device, a plurality of channels for air circulation between a hydrogel layer and external environment being provided in the second packaging layer. The e-skin provided in the present invention can achieve heating in low-temperature environment and cooling in high-temperature environment, thereby realizing a temperature regulation function similar to that of a human body.

IPC Classes  ?

• H10N 10/10 - Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects operating with only the Peltier or Seebeck effects
• G05D 23/19 - Control of temperature characterised by the use of electric means
• H10N 10/82 - Interconnections
• H10N 10/01 - Manufacture or treatment

Abstract

Disclosed in the present invention are a radar sensor architecture and a radar sensor. The radar sensor architecture comprises: a first frequency source, a second frequency source, a first frequency mixer, a first amplifier module, a transmitting antenna, a second amplifier module, a second frequency mixer, an intermediate frequency (IF) module, an analog-to-digital conversion module, a receiving antenna, and a first leakage interference cancellation module. The first leakage interference cancellation module is connected between an output end of the first amplifier module and an output end of the second amplifier module, and is used for detecting a second input signal in a radio frequency (RF) domain to suppress a leaked interference signal; alternatively, the first leakage interference cancellation module is connected between the output end of the first amplifier module and an output end of the IF module, and is used for detecting a third input signal in an IF domain to suppress the leaked interference signal. According to the present invention, a leakage interference cancellation module is introduced to cancel a leaked interference signal leaked to a receiving channel, thereby increasing the signal-to-noise ratio of a radar sensor, and thus improving the sensitivity of a receiver.

IPC Classes  ?

• G01S 13/02 - Systems using reflection of radio waves, e.g. primary radar systemsAnalogous systems
• G01S 7/02 - Details of systems according to groups , , of systems according to group
• G01S 7/35 - Details of non-pulse systems

Abstract

Provided in the embodiments of the present disclosure are a data processing method and apparatus, and a device and a storage medium. The method comprises: in a trusted execution environment, initializing a first program and a second program that is different from the first program; respectively allocating a first memory space and a second memory space for the first program and the second program, wherein the first memory space is a linear memory address space and comprises at least a first memory page, the second memory space is a linear memory address space and comprises at least a second memory page, and the second memory page is different from the first memory page; mapping the first memory page of the first memory space to a first virtual memory page in a virtual address space of the trusted execution environment; and mapping the second memory page of the second memory space to the first virtual memory page in the virtual address space.

IPC Classes  ?

• G06F 21/57 - Certifying or maintaining trusted computer platforms, e.g. secure boots or power-downs, version controls, system software checks, secure updates or assessing vulnerabilities

Abstract

The present invention particularly relates to the technical field of analog circuit numerical simulation. Provided are a large-scale linear circuit simulation method and system, a circuit simulator and a storage medium. The present solution comprises: constructing an ordinary differential equation of a linear circuit, and on the basis of an Euler iteration method, converting same into a large-scale sparse linear equation system; using a graph partitioning algorithm to rearrange rows and columns of a coefficient matrix of the equation system, so as to obtain a doubly bordered diagonal matrix; using a plurality of computing nodes to constitute distributed nodes, solving local Schur complements of the distributed nodes by means of parallel computation, and summing same to obtain a global Schur complement; and on the basis of the global Schur complement and the state of each distributed node at a previous moment, obtaining the state of each distributed node at a current moment, so as to obtain a large-scale linear circuit simulation result. The present solution can control the number and size of blocks of circuit matrixes, and can remarkably improve the circuit simulation efficiency while ensuring smooth execution of simulation processes.

IPC Classes  ?

• G06F 30/36 - Circuit design at the analogue level

Abstract

Disclosed are an extreme ultraviolet photoresist testing apparatus and method. The extreme ultraviolet photoresist testing apparatus comprises a substrate. At least one layer of film is disposed on the substrate, and at least one testing region is provided on the film. At least a portion of the film in the testing region is suspended. According to the present invention, the extreme ultraviolet photoresist can be characterized at near-atomic-scale resolution, and the use of the suspended film as a geometric structure of the substrate prevents charge accumulation during characterization, such that the line width and the line edge of the developed extreme ultraviolet photoresist can be characterized at near-atomic-scale resolution with low background noise. Moreover, according to the method, an electron energy loss spectrum of the extreme ultraviolet photoresist can be acquired and analyzed to determine whether all of the components of the extreme ultraviolet photoresist are uniformly distributed, and subnano-precision measurement is performed on the line edge roughness of the extreme ultraviolet photoresist, thereby accurately testing the performance of the extreme ultraviolet photoresist.

IPC Classes  ?

• G01N 23/04 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and forming images of the material
• G03F 1/86 - Inspecting by charged particle beam [CPB]

Abstract

A polymer material and a preparation method therefor and a drug-loading material, which relate to the technical field of medical polymer materials. The polymer material comprises: a cross-linked polymer, and a plurality of polyelectrolytes which are grafted onto the three-dimensional network structure of the cross-linked polymer via chemical bonds, wherein each of the polyelectrolytes contains a plurality of ionizable groups, and the plurality of ionizable groups are ionized to form a local potential by means of a counterion condensation effect, thereby inducing the aggregation of oppositely charged particles. Compared with a traditional drug-loading microsphere embolic agent, the polymer material can improve the adsorption capacity and adsorption efficiency thereof on oppositely charged particles. When oppositely charged particles are drug particles, the polymer material can improve the drug-loading capacity and shorten the drug-loading time.

IPC Classes  ?

• C08L 89/00 - Compositions of proteinsCompositions of derivatives thereof
• C08J 3/24 - Crosslinking, e.g. vulcanising, of macromolecules
• C08L 5/08 - ChitinChondroitin sulfateHyaluronic acidDerivatives thereof
• A61K 9/02 - SuppositoriesBougiesBases for suppositories or bougies

Abstract

A multiview 3D image encoding method, apparatus, system and storage medium are provided. The encoding method may include the steps of acquiring image data, and obtaining depth information containing a depth value of each pixel in an image based on the image data; grouping the image data into blocks, and calculating a perceived angular resolution of each object in blocks based on the depth information of each object in blocks respectively, wherein the perceived angular resolution of an object in blocks is a required maximum angular resolution that enables identification of the object in blocks; and configuring a respective encoding parameter for each object in blocks based on the perceived angular resolution of a respective one object in blocks, where the encoding parameter is configured such that a requirement of respective encoding parameter for a respective object in blocks with a respective perceived angular resolution is met.

IPC Classes  ?

• H04N 19/597 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding specially adapted for multi-view video sequence encoding
• H04N 13/00 - Stereoscopic video systemsMulti-view video systemsDetails thereof
• H04N 13/161 - Encoding, multiplexing or demultiplexing different image signal components
• H04N 13/282 - Image signal generators for generating image signals corresponding to three or more geometrical viewpoints, e.g. multi-view systems
• H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock

Abstract

A feature point-based electron beam lithography proximity effect pattern correction method, comprising: obtaining a target original design drawing, determining each original feature point in the target original design drawing, and calculating the exposure energy of each original feature point (S100); determining a relationship between the exposure energy of each original feature point and a development threshold range (S200); correcting each original feature point according to the relationship between the exposure energy of each original feature point and the development threshold range to obtain a target feature point of which the exposure energy is within the development threshold range (S300); and obtaining target feature points corresponding to all the original feature points, and generating a corrected correction result pattern according to the target feature points (S400). By discretizing the original design drawing into the original feature points, the exposure energy of the original feature points is calculated, so that the original feature points are corrected, thereby improving the correction precision, and solving the problems of poor universality and low correction precision in a common pattern correction method.

IPC Classes  ?

• G03F 7/20 - ExposureApparatus therefor

Abstract

Disclosed in the present invention is a humanoid metamorphic dexterous hand, comprising a palm module and a plurality of finger modules. Each finger module comprises a finger back unit, a finger pulp unit and a finger drive unit, the finger back unit and the finger pulp unit being stacked, the flexibility of the finger pulp unit being greater than the flexibility of the finger back unit, and the finger drive unit being used for driving tightening and release of a finger back traction wire and a finger pulp traction wire, so as to enable the finger module to bend towards the finger pulp unit or unfold away from the finger pulp unit. During execution of grabbing tasks, the finger pulp units achieve a high level of fitting to objects to be grabbed, so as to adapt to the shapes of said objects; a flexible-rigid combination mode is used for the finger pulp units and the finger back units, where the finger back units provide a certain degree of rigid support to the finger modules and the highly flexible finger pulp units facilitate bending of the finger modules towards the finger pulp units, in line with the characteristics of the human fingers being only capable of bending towards the palm, such that the finger modules have both certain rigidity and flexibility, thus meeting the requirements for rigidity and flexibility of manipulators in different grabbing environments.

IPC Classes  ?

• B25J 15/00 - Gripping heads

Abstract

Disclosed are a chimeric ubiquitin ligase capable of targeted degradation of KRAS, a preparation method therefor and the use thereof. The chimeric ubiquitin ligase comprises a KRAS binding domain and E3 ubiquitin ligase binding protein, the KRAS binding domain comprising at least one of RAF1(52-188), ARAF, PIP5K1A, RASSF2, APP, KRAS and RAF1. Further disclosed are a nucleic acid molecule encoding the chimeric ubiquitin ligase, a vector comprising the nucleic acid molecule, a host cell comprising the nucleic acid molecule or the vector, the preparation method for the chimeric ubiquitin ligase, and the use of same in preparing formulations for degrading KRAS proteins or drugs for treating KRAS-related cancers. The chimeric ubiquitin ligase can degrade different KRAS mutants.

IPC Classes  ?

• C07K 19/00 - Hybrid peptides
• C12N 15/85 - Vectors or expression systems specially adapted for eukaryotic hosts for animal cells
• C12N 15/12 - Genes encoding animal proteins
• A61P 35/00 - Antineoplastic agents

Abstract

The present invention provides a method for scalable fabrication of ultra-flat polycrystalline diamond membranes, the method comprising: (1) performing chemical vapor deposition on a growth substrate having diamond seeds thereon to grow a polycrystalline diamond membrane, wherein an exposed surface of the polycrystalline diamond membrane is a grown surface having a first roughness; and a surface bonded to the growth substrate is a buried surface; (2) bonding the grown surface to a transfer substrate using an adhesive; and (3) removing the growth substrate to expose the buried surface of the polycrystalline diamond membrane, wherein the buried surface has a second roughness after exposure, and the second roughness is less than the first roughness.

IPC Classes  ?

• C30B 28/14 - Production of homogeneous polycrystalline material with defined structure directly from the gas state by chemical reaction of reactive gases
• C30B 29/04 - Diamond
• C30B 29/64 - Flat crystals, e.g. plates, strips or discs
• C30B 33/12 - Etching in gas atmosphere or plasma
• C30B 35/00 - Apparatus not otherwise provided for, specially adapted for the growth, production or after-treatment of single crystals or of a homogeneous polycrystalline material with defined structure

Abstract

A method, device, system, and medium for classifying green-blue-gray infrastructure. The method includes obtaining a multispectral photo corresponding to a target area, and obtaining an image set of a target and a color orthophoto, based on the multispectral photo; obtaining a sample file based on the color orthophoto, and obtaining a classification result of the green-blue-gray infrastructure corresponding to the target area based on the image set of the target and the sample file. The embodiments can obtain the image set of the target and the color orthophoto based on the multispectral photo corresponding to the target area and combine the sample file obtained from the color orthophoto with the image set of the target to obtain the classification result of the green-blue-gray infrastructure corresponding to the target area, thereby improving the accuracy and efficiency for classifying the green-blue-gray infrastructure.

IPC Classes  ?

• G06V 10/764 - Arrangements for image or video recognition or understanding using pattern recognition or machine learning using classification, e.g. of video objects
• G06V 10/56 - Extraction of image or video features relating to colour
• G06V 20/10 - Terrestrial scenes

Abstract

Disclosed are a method and system for generating an image, and a device, an electronic equipment and a storage medium. The method may include: acquiring original pixel data of an image to be displayed, where the original pixel data comprises image pixel data (S100); acquiring pixel arrangement structure data for an OLED display screen, where the pixel arrangement structure data comprises display pixel data arranged in a preset arrangement direction (S200); performing a mapping operation according to the image pixel data and the display pixel data to obtain original mapped pixel data (S300); determining target pixel data in the original mapped pixel data according to a preset target direction and the preset arrangement direction (S400); and performing a pixel value adjustment operation on the target pixel data in the original mapped pixel data to obtain target mapped pixel data (S500).

IPC Classes  ?

• H04N 13/125 - Improving the 3D impression of stereoscopic images by modifying image signal contents, e.g. by filtering or adding monoscopic depth cues for crosstalk reduction

Abstract

An automatic low-temperature developing device, comprising a developing chamber (10), a developing mechanism (20) and a conveying mechanism (30), wherein the developing chamber (10) is used for isolating a developing environment for a developing sample; the developing mechanism (20) comprises a developing container (21) for containing a developer and a first temperature control assembly (22) for controlling the temperature of the developer, the first temperature control assembly (22) being mounted on the developing container (21), and the developing container (21) being mounted in the developing chamber (10); and the conveying mechanism (30) is used for transporting the developing sample into the developing container (21), and the conveying mechanism (30) is mounted in the developing chamber (10). The automatic low-temperature developing device has the advantage of being able to control the temperature of the developer for a better developing effect.

IPC Classes  ?

• G03F 7/30 - Imagewise removal using liquid means

Abstract

A receptor material, a synthesis method and use thereof is disclosed. The synthesis method of the receptor material includes: S1, reacting the compound shown in a formula I with LiAlH4 to obtain a compound shown in a formula II; S2, reacting the compound shown in the formula II with 1,10-phenanthroline-5,6-dione to obtain a compound shown in a formula III; S3, reacting the compound shown in the formula III with phosphorus oxychloride and N,N-dimethylformamide to obtain a compound shown in a formula IV; and S4, reacting the compound shown in the formula IV with (5,6-dihalo-3-oxo-2,3-dihydro-1H-inden-1-ylidene)malononitrile. The receptor material provided by the present disclosure can effectively improve the open-circuit voltage and photoelectric conversion efficiency of organic photovoltaics cells including the receptor material. The present disclosure further provides an organic photovoltaic cell including the above receptor material and a method for preparing the organic photovoltaic cell.

IPC Classes  ?

• H10K 85/60 - Organic compounds having low molecular weight
• C07D 495/22 - Heterocyclic compounds containing in the condensed system at least one hetero ring having sulfur atoms as the only ring hetero atoms in which the condensed system contains four or more hetero rings
• H10K 30/50 - Photovoltaic [PV] devices

Abstract

The present application relates to the technical field of compressors, and in particular, to a composite gas diffusion layer, a preparation method thereof, a membrane electrode, and an electrochemical hydrogen compressor. The composite gas diffusion layer applied to an electrochemical hydrogen compressor includes: a base layer, a hydrophobic layer, and a water-absorbing layer, and the base layer, the hydrophobic layer, and the water-absorbing layer are sequentially stacked. The composite gas diffusion layer of the present application is designed for an inherent problem of the drying up of the anode during the operation of the electrochemical hydrogen compressor, and by arranging a layered structure for water absorption/hydrophobicity, the composite gas diffusion layer can improve the compression performance of the membrane electrode of the compressor and reduce the ohmic impedance of the membrane electrode.

IPC Classes  ?

• H01M 8/0656 - Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants by electrochemical means
• H01M 4/86 - Inert electrodes with catalytic activity, e.g. for fuel cells
• H01M 4/88 - Processes of manufacture
• H01M 8/04291 - Arrangements for managing water in solid electrolyte fuel cell systems
• H01M 8/1004 - Fuel cells with solid electrolytes characterised by membrane-electrode assemblies [MEA]

Abstract

Disclosed in the present invention are a double-hole water spraying propulsion mechanism, an underwater vehicle and a control method. The double-hole water spraying propulsion mechanism comprises: a water storage part, which is provided with a water inlet member for one-way water input and a water outlet member for one-way water output; a piston part, which is movably arranged in the water storage part and located between the water inlet member and the water outlet member, a water inlet cavity being formed between the piston part and the water inlet member, and a water spraying cavity being formed between the piston part and the water outlet member; at least one water return assembly, which is connected to the water inlet cavity and the water spraying cavity and is configured to guide water in the water inlet cavity into the water spraying cavity in a one-way mode; and a driving assembly, which is connected to the piston part, the piston part moving between the water inlet member and the water outlet member by means of the drive of the driving assembly. The problem of an underwater vehicle in the prior art having a lower propulsion efficiency and motion performance in a low-noise state is solved.

IPC Classes  ?

• B63H 11/00 - Marine propulsion by water jets
• B63H 11/02 - Marine propulsion by water jets the propulsive medium being ambient water
• B63H 11/06 - Marine propulsion by water jets the propulsive medium being ambient water by means of pumps of reciprocating type

Abstract

Provided are methods for treating coronavirus infections by administering modified nucleosides, ester and amino acid ester prodrugs of nucleoside, their pharmaceutically acceptable salts, and drug combination thereof, of Formula (I). The compounds, combination, and methods provided are particularly useful for preventing, mitigating, or treating coronavirus infections or cytopathic effects resulting from the replication or reproduction of coronaviruses and their variants, including SARS-CoV-2. Provided are methods for treating coronavirus infections by administering modified nucleosides, ester and amino acid ester prodrugs of nucleoside, their pharmaceutically acceptable salts, and drug combination thereof, of Formula (I). The compounds, combination, and methods provided are particularly useful for preventing, mitigating, or treating coronavirus infections or cytopathic effects resulting from the replication or reproduction of coronaviruses and their variants, including SARS-CoV-2.

IPC Classes  ?

• C07D 487/04 - Ortho-condensed systems
• A61K 31/706 - Compounds having saccharide radicals and heterocyclic rings having nitrogen as a ring hetero atom, e.g. nucleosides, nucleotides containing six-membered rings with nitrogen as a ring hetero atom
• A61P 31/14 - Antivirals for RNA viruses

Abstract

Disclosed in the present invention are a full-color micro-display device and a manufacturing method therefor. The full-color micro-display device comprises a silicon-based driving chip and a pixel area provided on the silicon-based driving chip; the pixel area comprises blue pixel positions, red pixel positions and green pixel positions; blue Micro-LED devices are provided at the blue pixel positions, red QLED devices are provided at the red pixel positions, and green QLED devices are provided at the green pixel positions; the blue Micro-LED devices, the red QLED devices and the green QLED devices share an electrode; the silicon-based driving chip is used for driving the blue Micro-LED devices, the red QLED devices and the green QLED devices. On this basis, for the full-color micro-display device, blue pixels can be achieved by means of the blue Micro-LEDs and red and green pixels can be achieved by means of the QLEDs, and the blue pixels and the red and green pixels together achieve three primary colors, thereby achieving full-color display.

IPC Classes  ?

• H10K 59/70 - OLEDs integrated with inorganic light-emitting elements, e.g. with inorganic electroluminescent elements
• H01L 27/15 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components with at least one potential-jump barrier or surface barrier, specially adapted for light emission
• G09F 9/33 - Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
• G09G 3/32 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]

Abstract

A method and apparatus (400) for imaging a target in a marine controllable source electromagnetic reservoir, a device (500), and a storage medium, which are suitable for the technical field of geological exploration. The method for imaging a target in a marine controllable source electromagnetic reservoir comprises: constructing, according to physical property data of a target exploration zone, a local target model corresponding to a reservoir target body in a formation of the target exploration zone (S11); performing inversion on the local target model, and obtaining the complex resistivity of the reservoir target body (S12); and according to the complex resistivity, obtaining a three-dimensional imaging result of the reservoir target body and outputting same (S13). According to the described method, non-uniqueness can be effectively reduced and the efficiency of inversion can be improved, so as to achieve the purpose of rapid and high-precision three-dimensional imaging of oil and gas in a controllable source marine electromagnetic reservoir.

IPC Classes  ?

• G01V 3/38 - Processing data, e.g. for analysis, for interpretation or for correction

Abstract

A display screen having a pixelated photoluminescence quantum dot color filter (1), comprising a display screen body. The display screen body at least further comprises a blue-light LED backlight module (6), a lower polarizer (7), a lower glass substrate (5), a TFT array (8), a liquid crystal layer (4), an upper glass substrate (3), and an upper polarizer (9) which are sequentially arranged from bottom to top; a pixelated photoluminescence quantum dot color filter (1) is mounted at a portion of the display screen body; the pixelated photoluminescence quantum dot color filter (1) comprises a substrate (11) and a plurality of sub-pixel points (10) and blank points (12) provided on the surface of the substrate (11). The display screen having the pixelated photoluminescence quantum dot color filter (1) is printed on the substrate (11) in the form of a pixel color filter and used in cooperation with a liquid crystal display screen, and the use of the pixelated photoluminescence quantum dot color filter (1) can greatly improve the optical efficiency and greatly increase the brightness of the modern liquid crystal display screen, thereby making great contribution on energy conservation and emission reduction; in addition, due to a quantum dot material, the color saturation of the liquid crystal display screen is more excellent.

IPC Classes  ?

• G02F 1/1335 - Structural association of cells with optical devices, e.g. polarisers or reflectors

Abstract

An opto chip for detecting a physical parameter of a liquid sample, comprising an optical structure monolithically integrated with a substrate layer and a functional layer, wherein the substrate layer is light-transmissive and configured to have an upper surface for receiving a droplet of the liquid sample and a lower surface bonded to the functional layer; and the functional layer comprises a light-emitting region and a light-detecting region with the light-emitting region being configured to emit measurement light. The light-detecting region is configured to receive reflected light derived from the measurement light and a signal reflecting the change in intensity thereof is converted into a photocurrent signal. A viscometer and detection method operated using the same opto chip technique. The need for complex external optical calibration is thus eliminated, making the viscometer easier to operate and reducing the overall size of the device.

IPC Classes  ?

• G01N 11/10 - Investigating flow properties of materials, e.g. viscosity or plasticityAnalysing materials by determining flow properties by moving a body within the material

Abstract

Disclosed in the present invention are a non-contact blood pressure monitoring method and apparatus based on multi-spectral pulse waves. The method comprises: S1, acquiring a continuous video image containing human skin, selecting an effective skin region in the video image, and extracting pulse wave signals from pixels of the skin region; S2, performing denoising and component decomposition on pulse wave signals of a green-light waveband and a near-infrared light waveband by using a pulse wave signal of a blue-light waveband among multi-spectral pulse wave signals, and extracting a pulse wave transit time; and S3, establishing a regression model regarding the pulse wave transit time and a blood pressure, and calibrating and continuously and dynamically estimating the blood pressure. In the present invention, a single camera is used to acquire a continuous video image of human skin, such that the extraction of pulse wave signals in visible light and near infrared from the image can be simultaneously performed, thereby significantly enhancing the independence of different wavebands in pulse wave signal monitoring, and after a regression model is established using a calculated pulse wave transit time, blood pressure parameters can be calibrated, thereby ensuring the accuracy of blood pressure values.

IPC Classes  ?

• A61B 5/021 - Measuring pressure in heart or blood vessels

Abstract

Disclosed are a multispectral imaging method and device for continuously monitoring heart rate from a video, and a terminal. The method comprises: S1: automatically obtaining an environmental illumination intensity according to the monitoring environment in which a person to be monitored is located, automatically switching filter light according to the illumination intensity, selecting an image capture channel, and capturing an environment video image in real time; S2: extracting and analyzing the environment video image, automatically switching a pulse wave biometric label according to the extracted wave band signal, and extracting a pulse wave; and S3: calculating, according to the pulse wave signal, a heart rate value of the person to be monitored. According to the present invention, an RGB sensor and an NIR sensor are carried in a single camera, and alternate interchange of the visible light wave band and the near-infrared wave band of the RGB sensor and the NIR sensor is achieved by employing an IR-cut filter automatic switching mode, so that the single camera may achieve multi-spectral pulse wave signal extraction and heart rate monitoring under two environmental light conditions by using a single algorithm, and as a result, the single camera may achieve continuous heart rate monitoring for 7 days/24 hours.

IPC Classes  ?

• A61B 5/024 - Measuring pulse rate or heart rate
• A61B 5/00 - Measuring for diagnostic purposes Identification of persons

Abstract

Disclosed in the present invention are a method and apparatus for extracting a respiratory angular velocity from a video. The method comprises: S1, acquiring a video image in an area to be monitored, and performing image segmentation on the acquired video image, so that the entire image is segmented into an M*N matrix; S2, taking each image segment in the matrix as an independent signal monitoring area, acquiring a respiratory movement signal of each area, and obtaining a respiratory movement X-direction acceleration and a respiratory movement Y-direction acceleration; and S3, calculating an included angle of orthogonal respiratory acceleration vectors to obtain a respiratory movement angular velocity. According to the present invention, accelerations in vertical and horizontal orthogonal directions are extracted from continuous video images, the included angle is calculated according to the accelerations in the two orthogonal directions, and respiratory signals are generated according to the angular velocity. According to the method, movement information in the orthogonal directions is fused, so that changes in pixels caused by respiratory movement can be described more comprehensively, thereby making the monitoring result more accurate.

IPC Classes  ?

• G06V 40/20 - Movements or behaviour, e.g. gesture recognition

Abstract

A system for treating nitrate nitrogen sewage by autotrophic denitrification subsurface flow constructed wetland and a method thereof. The system includes a wetland pool body, a wetland substrate, a water distribution device, a water outlet device, and plants. The wetland substrate is filled in the wetland pool body. The wetland substrate includes pyrite, volcanic rock, and biochar. The water distribution device is located at the top of the wetland pool body to distribute water into the wetland pool body, and the water outlet device is located at the bottom of the wetland pool body to collect treated sewage. The plant is planted in the wetland substrate. The dissolved oxygen concentration of the system for treating nitrate nitrogen sewage by autotrophic denitrification subsurface flow constructed wetland is maintained at 1.2˜2.8 mg/L.

IPC Classes  ?

• C02F 3/30 - Aerobic and anaerobic processes
• C02F 3/34 - Biological treatment of water, waste water, or sewage characterised by the microorganisms used

Abstract

A DNA molecular assembler and an application thereof. The DNA molecular assembler comprises a palm domain, two terminal insertion domains, a thumb domain, a finger domain, and an exonuclease activity domain. The DNA molecular assembler has good stability and is suitable for isothermal amplification. The DNA molecular assembler and a mutant thereof have a DNA assembly function under various metal ions and different temperatures, and can be applied to nanopore sequencing, single-molecule sequencing, RCA library establishment, environment detection, and in-vitro diagnosis.

IPC Classes  ?

• C12N 9/12 - Transferases (2.) transferring phosphorus containing groups, e.g. kinases (2.7)
• C12N 15/54 - Transferases (2)
• C12Q 1/6844 - Nucleic acid amplification reactions
• C12Q 1/6869 - Methods for sequencing
• C40B 50/06 - Biochemical methods, e.g. using enzymes or whole viable microorganisms

Abstract

Provided are a hepatitis B mRNA and a vaccine and use thereof. A protein encoded by an mRNA molecule contains at least one of a hepatitis B PreS1 antigen protein, a hepatitis B core antigen protein, a hepatitis B polymerase, and a polymerase T cell epitope enriched fragment. The use of an mRNA-LNP vaccine for immunizing healthy and HBV model mice can induce strong humoral immune response and wide cellular immune response, and can significantly improve viral serological indicators of HBV model mice, thus indicating that the vaccine has the potential of clinical functional cure of HBV.

IPC Classes  ?

• C12N 15/51 - Hepatitis viruses
• A61K 39/29 - Hepatitis virus
• A61P 1/16 - Drugs for disorders of the alimentary tract or the digestive system for liver or gallbladder disorders, e.g. hepatoprotective agents, cholagogues, litholytics
• A61P 31/20 - Antivirals for DNA viruses

Abstract

A dual-gate pore protein, a pore protein mutant, a nucleotide sequence, and the use thereof, belonging to the technical field of nanopore single-molecule detection. The amino acid sequence of the dual-gate pore protein is as shown in SEQ ID NO. 1. The amino acid sequence of the pore protein mutant is the sequence as shown in SEQ ID NO. 2, a first mutant sequence or a second mutant sequence, the first mutant sequence and the second mutant sequence being sequences having 75% or above homology to the SEQ ID NO. 1 and SEQ ID NO. 2 respectively.

IPC Classes  ?

• C07K 14/00 - Peptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof
• C07K 1/107 - General processes for the preparation of peptides by chemical modification of precursor peptides
• C12Q 1/6806 - Preparing nucleic acids for analysis, e.g. for polymerase chain reaction [PCR] assay
• C12Q 1/6869 - Methods for sequencing
• G01N 33/487 - Physical analysis of biological material of liquid biological material
• G01N 27/327 - Biochemical electrodes

Abstract

The present invention provides a scalable method for achieving shape control of diamond micro-nanoparticles, comprising air oxidizing diamond micro-nanoparticles grown by chemical vapor deposition and/or diamond micro-nanoparticles grown by high pressure and high temperature. The present invention achieves the controllable morphology transformation of diamond micro-nanoparticles via air oxidation treatment. It has been demonstrated that a series of unique shapes, including “flower” shaped, “hollow” structured, “pyramid” patterned on the surface, and “boomerang” shaped, can be achieved by altering the air oxidation parameters, i.e., temperature and duration. The scalable production of these differently shaped diamond micro-nanoparticles represents a significant scientific breakthrough together with a high commercial value. The ability to produce diamond particles with desired shapes simply and cost-effectively will remove many obstacles to using diamonds for practical applications in nanophotonics, quantum computing, quantum optics, etc.

IPC Classes  ?

• C23C 16/44 - Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
• C23C 16/02 - Pretreatment of the material to be coated
• C23C 16/27 - Diamond only
• C23C 16/511 - Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating using electric discharges using microwave discharges
• C23C 16/56 - After-treatment

Abstract

A water retention material, a water retention proton exchange membrane, a preparation method therefor and a use thereof. The water retention material comprises a polymer chain segment provided by a hydrophilic polymer, and a proton carrier group grafted onto the polymer chain segment; the polymer chain segment contains a hydrophilic group, causing the water retention material to promote proton transport by means of a hopping mechanism, while remaining hydrophilic and water retaining, which inhibits electro-osmotic drag and reduces the number of water molecules required during proton transport. A water-retention proton exchange membrane prepared using the described material may alleviate anode side drying, reduce electrical resistance and improve the efficiency of proton transport, and may be applied in various fields, such as electrochemical hydrogen compression, electrochemical carbon dioxide compression, electrochemical air compression, fuel cells, and water electrolysis hydrogen production.

IPC Classes  ?

• C08F 251/00 - Macromolecular compounds obtained by polymerising monomers on to polysaccharides or derivatives thereof
• C08J 5/22 - Films, membranes or diaphragms
• C25B 13/08 - DiaphragmsSpacing elements characterised by the material based on organic materials
• H01M 8/1018 - Polymeric electrolyte materials
• H01M 8/103 - Polymeric electrolyte materials characterised by the chemical structure of the main chain of the ion-conducting polymer having nitrogen, e.g. sulfonated polybenzimidazoles [S-PBI], polybenzimidazoles with phosphoric acid, sulfonated polyamides [S-PA] or sulfonated polyphosphazenes [S-PPh]
• H01M 8/1069 - Polymeric electrolyte materials characterised by the manufacturing processes

Abstract

Provided is an RNA containing an open reading frame (ORF), which ORF encodes a truncated β-1,4-galactosyltransferase B4GALT1 and/or a truncated α-2,6-sialyltransferase ST6GAL1. The amino acid sequence of the truncated B4GALT1 is as shown in SEQ ID NO: 2, and the amino acid sequence of the truncated ST6GAL1 is as shown in SEQ ID NO: 4. The RNA is delivered via a lipid nanoparticle (LNP) system, and synthesizes B4GALT1 and/or ST6GAL1 in vivo by means of using its own raw materials and a translation mechanism, which B4GALT1 and/or ST6GAL1 have/has a modification effect on the sugar chain structure of the protein in vivo.

IPC Classes  ?

• C12N 15/54 - Transferases (2)
• C12N 15/62 - DNA sequences coding for fusion proteins
• C12N 9/10 - Transferases (2.)
• C07K 19/00 - Hybrid peptides
• C12N 15/85 - Vectors or expression systems specially adapted for eukaryotic hosts for animal cells
• A61K 31/7088 - Compounds having three or more nucleosides or nucleotides
• A61K 9/51 - Nanocapsules
• A61K 47/18 - AminesAmidesUreasQuaternary ammonium compoundsAmino acidsOligopeptides having up to five amino acids
• A61K 47/10 - AlcoholsPhenolsSalts thereof, e.g. glycerolPolyethylene glycols [PEG]PoloxamersPEG/POE alkyl ethers
• A61K 47/24 - Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite containing atoms other than carbon, hydrogen, oxygen, halogen, nitrogen or sulfur, e.g. cyclomethicone or phospholipids
• A61K 47/28 - Steroids, e.g. cholesterol, bile acids or glycyrrhetinic acid
• A61P 37/02 - Immunomodulators

Abstract

An image feature extraction method and apparatus are provided, along with a computer device and a readable storage medium. After obtaining the target convolutional kernel of the feature extraction convolutional neural network, this application will cut the input feature map obtained from the preprocessed image according to the preset image size into multiple abutting input feature submaps. Each input feature submap will be zero-padded to obtain the preprocessed feature submap. Then, for each preprocessed feature submap, the Karatsuba algorithm will be used to reduce the multiplier resource consumption during the convolution operation between the target convolutional kernel and the preprocessed feature submap, effectively suppressing the growth of adder resource consumption during the convolution operation, resulting in the output feature submap. Subsequently, multiple output feature submaps will be overlapped and the boundary of the overlapped feature map will be cropped to obtain the output feature map.

IPC Classes  ?

• G06V 10/77 - Processing image or video features in feature spacesArrangements for image or video recognition or understanding using pattern recognition or machine learning using data integration or data reduction, e.g. principal component analysis [PCA] or independent component analysis [ICA] or self-organising maps [SOM]Blind source separation
• G06V 10/22 - Image preprocessing by selection of a specific region containing or referencing a patternLocating or processing of specific regions to guide the detection or recognition
• G06V 10/82 - Arrangements for image or video recognition or understanding using pattern recognition or machine learning using neural networks

Abstract

A rapid magnetic resonance imaging method and apparatus. The method comprises: introducing a complex convolutional neural network into magnetic resonance imaging to compensate for missing imaging phase information (S101); and combining the complex convolutional neural network with a Laplacian attention model to learn imaging key features, and improving the learning capability thereof (S102). The method combines complex convolution and spatial Laplacian attention, so as to solve the problem of missing phase information by using the complex convolutional neural network, and, in combination with the spatial Laplacian attention, enhance the learning capability of the complex convolutional neural network model with respect to the key features, thereby effectively eliminating the impact of residual artifacts while improving the reconstruction quality. The present invention aims to fully utilize the phase information of complex data and improve the learning capability of the model with respect to the key features, thereby realizing rapid magnetic resonance reconstruction by using the complex convolutional neural network and the spatial Laplacian attention.

IPC Classes  ?

• G06T 11/00 - 2D [Two Dimensional] image generation
• A61B 5/055 - Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fieldsMeasuring using microwaves or radio waves involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging
• A61B 5/00 - Measuring for diagnostic purposes Identification of persons
• G06N 3/045 - Combinations of networks
• G06N 3/0464 - Convolutional networks [CNN, ConvNet]
• G06N 3/048 - Activation functions
• G06N 3/084 - Backpropagation, e.g. using gradient descent

Abstract

A diffusion magnetic resonance sparse imaging method and apparatus based on a higher-order tensor. The method comprises: constructing an acceleration model based on diffusion magnetic resonance imaging (S101); and using the constructed acceleration model to perform cerebral white matter microstructure estimation, and using spatial information between high-dimensional structures in a cerebral white matter microstructure to estimate a parameter map starting from a low angular resolution diffusion magnetic resonance image (S102). An acceleration model based on diffusion magnetic resonance imaging is constructed to perform cerebral white matter microstructure estimation, and spatial information between high-dimensional structures is fully used to accurately estimate a parameter map starting from a low angular resolution diffusion magnetic resonance image, so as to accelerate the estimation of a diffusion magnetic resonance parameter, thereby shortening a collection time. The present invention aims to solve the problem of the time taken for carrying out current diffusion magnetic resonance imaging being long, so as to improve the feasibility of rapid quantitative brain structure imaging.

IPC Classes  ?

• G01R 33/56 - Image enhancement or correction, e.g. subtraction or averaging techniques
• A61B 5/055 - Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fieldsMeasuring using microwaves or radio waves involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging

Abstract

Disclosed herein are an amplification structure, a rapid nucleic acid detection chip comprising the amplification structure, a device comprising the rapid nucleic acid detection chip, a corresponding amplification method, a rapid nucleic acid detection method, and a large-scale nucleic acid detection method. The amplification structure comprises a suspended thin film and a heating device, the heating device being configured for heating droplets on the suspended thin film. According to the microdroplet-based rapid nucleic acid detection chip provided by the present invention, by means of the arrangement of the suspended thin film and the droplets, amplification of a sample to be detected in the heated droplets can be rapidly achieved.

IPC Classes  ?

• C12M 1/34 - Measuring or testing with condition measuring or sensing means, e.g. colony counters
• C12M 1/38 - Temperature-responsive control
• C12Q 1/6837 - Enzymatic or biochemical coupling of nucleic acids to a solid phase using probe arrays or probe chips
• B01L 7/00 - Heating or cooling apparatusHeat insulating devices
• B01L 3/00 - Containers or dishes for laboratory use, e.g. laboratory glasswareDroppers

Abstract

An adaptive dynamic magnetic resonance fast imaging method and device based on a partially separable function. The method comprises: constructing a dynamic magnetic resonance reconstruction model on the basis of low-rank prior and sparse prior of dynamic magnetic resonance (S101); the dynamic magnetic resonance reconstruction model first converting an inputted low rank into delineation of an image filter null space by means of an image domain annihilation relationship; and the dynamic magnetic resonance reconstruction model then using the equivalent relationship between the product and convolution of a Hankel matrix to express the low rank by using a convolutional network, and iteratively solving and expanding the low rank to the convolutional network (S103). A neural network can reach a higher magnetic resonance reconstruction acceleration multiple, so that a better reconstruction effect is achieved, and the capture of a dynamic frame is more accurate.

IPC Classes  ?

• G06T 11/00 - 2D [Two Dimensional] image generation

Abstract

A clock data recovery circuit and a clock data recovery method are provided. The clock data recovery circuit includes a time delay loop (100), a frequency locking loop (200) and a deserializer (300). The time delay loop (100) is configured to delay input data according to a phase of a clock signal to realize phase alignment; the frequency locking loop (200) is connected to the time delay loop (100), and is configured to adjust a frequency of the clock signal according to the delayed input data to make the frequency of the clock signal be consistent with a frequency of the input data; and the deserializer (300) is respectively connected to the time delay loop (100) and the frequency locking loop (200), and is configured to deserialize the input data according to the clock signal.

IPC Classes  ?

• H04L 7/033 - Speed or phase control by the received code signals, the signals containing no special synchronisation information using the transitions of the received signal to control the phase of the synchronising-signal- generating means, e.g. using a phase-locked loop
• H03L 7/08 - Details of the phase-locked loop
• H04L 7/00 - Arrangements for synchronising receiver with transmitter

Abstract

Disclosed in the present invention is a centrifugal micro-fluidic chip. The centrifugal micro-fluidic chip comprises a processing structure and a backflow structure which are sequentially arranged in a movement direction of a sample liquid. The backflow structure comprises an arc-shaped channel, a recycling chamber and a backflow channel. The backflow structure is added to the centrifugal micro-fluidic chip provided by the present invention; under a centrifugal state, after the micro-fluidic chip completes the treatment of the sample liquid, the sample liquid containing a product enters the arc-shaped channel. Because a contact angle between the sample liquid and the arc-shaped channel and a contact angle between the sample liquid and the backflow channel are large, the smaller the channel sizes are, the stronger the surface tension effect is; and the size of the backflow channel is larger than that of the arc-shaped channel, so that after the micro-fluidic chip stops rotating, the sample liquid in the arc-shaped channel enters the backflow channel under the action of surface tension and further enters the recycling chamber located at the circle center. When a reaction product needs to be recycled or detected, operation and treatment can be directly performed on the recycling chamber the relative position of which is unchanged, thereby avoiding the positioning problem.

IPC Classes  ?

• B01L 3/00 - Containers or dishes for laboratory use, e.g. laboratory glasswareDroppers
• C12Q 1/6869 - Methods for sequencing
• C12Q 1/6844 - Nucleic acid amplification reactions

Abstract

A screening method for an amino acid sequence of a protein nanopore, a protein nanopore, and applications thereof. The screening method includes: evaluating a characteristic sequence of a dual-pore structure, using a model to search for an amino acid sequence matched with the characteristic feature of the dual-pore structure, removing a redundant candidate sequence and then performing positioning and screening, calculating the matching length and envelope length of the candidate sequence, then performing registration to obtain a relative mismatching relationship with a known protein nanopore, and performing analysis to obtain a final sequence.

IPC Classes  ?

• G01N 33/68 - Chemical analysis of biological material, e.g. blood, urineTesting involving biospecific ligand binding methodsImmunological testing involving proteins, peptides or amino acids
• G01N 33/543 - ImmunoassayBiospecific binding assayMaterials therefor with an insoluble carrier for immobilising immunochemicals

Abstract

Provided are a Raman spectrum preprocessing model generation method and system, and a terminal and a storage medium. The method comprises: extracting noise, baseline background signals and Raman peaks from a real Raman spectrum library, and building libraries; freely combining Raman characteristic peaks in a Raman peak library to generate a desired spectrum library without noise and baseline background signals; then superimposing the extracted noise and baseline background signals on the desired spectrum library to generate a reference spectrum library; inputting the desired spectrum library and random Gaussian noise into a generator to generate a simulation spectrum library; forming adversarial training with the generator by means of a discriminator; after the training is ended, generating a high-simulation Raman spectrum library that conforms to real Raman spectral characteristics; and by using the high-simulation Raman spectrum library, training a spectrum preprocessing model based on a self-supervised algorithm, so as to complete automatic setting of a parameter, wherein the desired spectrum library is used as a model training label, and after the training is ended, the model can be directly used for processing an actually collected spectrum. The method has simple and rapid usage, good effects in removing noise and removing a baseline background, and high fidelity in spectra.

IPC Classes  ?

• G01N 21/65 - Raman scattering
• G06F 30/27 - Design optimisation, verification or simulation using machine learning, e.g. artificial intelligence, neural networks, support vector machines [SVM] or training a model

Abstract

An electro-optical test platform device, applicable to the technical field of electro-optical experiments. The device comprises: an electron gun (1), a vacuum chamber (2), a liner tube (4) and carrier disks (5); the electron gun (1) generates an electron beam; an objective lens (3), an electron beam imaging system and an electron beam size measurement device are arranged at the vacuum chamber (2); one end of the liner tube (4) is connected to the electron gun (1), the liner tube (4) is configured to allow an electron beam to pass through, and the other end of the liner tube (4) is communicated with the vacuum chamber (2); the electron beam imaging system uses secondary electron and backscattered electron signals to form an image; an etching trace is formed on a photoresist under the action of the electron beam; the size of the electron beam is obtained by measuring the etching trace; at least two carrier disks (5) are provided, the carrier disks (5) move along the length direction of the liner tube (4), and the carrier disks (5) are used for bearing electro-optical elements. The device solves the technical problems in the prior art that electro-optical elements can only be independently tested, collected and analyzed data is limited, and even if one electro-optical system is formed for testing, waste and low efficiency are also present when modification is required.

IPC Classes  ?

• G01N 23/2251 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by measuring secondary emission from the material using electron or ion microprobes using incident electron beams, e.g. scanning electron microscopy [SEM]

Abstract

322-based thermoelectric material protected by a coating has excellent stability, and has a small internal resistance change rate and Seebeck coefficient change rate after 30 days of service at 400°C. After extreme testing at a high current density, the material has a small internal resistance change rate.

IPC Classes  ?

• H01L 35/08 - Structural details of the junction; Connections of leads non-detachable, e.g. cemented, sintered, soldered
• B32B 15/01 - Layered products essentially comprising metal all layers being exclusively metallic

Abstract

abcdeabcdee/TEcM contact interface not only has superior comprehensive performance after synthesis, but also still has a high shear strength (> 30 MPa) and a low contact resistance (< 10 μΩ*cm2) after 15 days of service at 400ºC.

IPC Classes  ?

• H10N 10/817 - Structural details of the junction the junction being non- separable, e.g. being cemented, sintered or soldered
• H10N 10/01 - Manufacture or treatment
• H10N 10/852 - Thermoelectric active materials comprising inorganic compositions comprising tellurium, selenium or sulfur
• C22C 30/00 - Alloys containing less than 50% by weight of each constituent

Abstract

A method for characterising an object, including: providing, via a support plane, coherent incident radiation at the object at each of a plurality of radiation configurations, detecting, at a detector, an intensity of radiation scattered by the object for each radiation configurations, and determining, via an iterative process, an object transmission function associated with the object in dependence on the detected intensity of radiation for each radiation configurations. The iterative process comprises estimating, for each radiation configurations, an entrance wave function and an exit wave function, a support constraint and a current estimate of the object transmission function, determining a ratio of a sum of intensities of the exit wave function for the plurality of radiation configurations to a sum of intensities of the entrance wave function therefor, and updating the estimate of the object transmission function in dependence on the determined ratio and an amplitude constraint.

IPC Classes  ?

• G01N 21/47 - Scattering, i.e. diffuse reflection

Abstract

Disclosed is a peroxide/superoxide-free, a gaseous hydrogen-free, one-pot isomerization-dehydrogenation process for preparing aromatic and heteroaromatic compounds from exocyclic pi-systems by a carbene ligated transition-metal catalyst.

IPC Classes  ?

• C07B 35/04 - Dehydrogenation
• C07B 35/08 - Isomerisation

Abstract

Disclosed in the present application are a frequency spectrum sensing method and device. The method comprises: sending a preamble signal over a target channel on the basis of a first transmitting gain; on the basis of a normal mode, receiving a mixed signal containing the preamble signal, and separating the mixed signal by using a fitting separation method to obtain a target signal; generating frequency spectrums of the target channel according to the target signal; splicing the frequency spectrums by means of channel impulse response splicing to obtain a high-definition frequency spectrum; and on the basis of the high-definition frequency spectrum, determining the occupation state of the target channel.

IPC Classes  ?

• H04B 17/382 - MonitoringTesting of propagation channels for resource allocation, admission control or handover
• H04L 25/02 - Baseband systems Details

Abstract

Disclosed in the present invention are a decentralized trust-based TEE state continuity protection method and system under a public cloud, an intelligent terminal, and a storage medium. The method comprises: initializing a state service instance on the basis of a blockchain; updating a state request of an application program instance on the basis of encrypted transmission and a session key; controlling the application program instance to read the latest state thereof stored in the state service instance; when the state service instance is restarted, recovering the state of the state service instance on the basis of the session key; and when the application program instance is restarted, recovering the state of the application program instance on the basis of sealed state data of an operating system. According to the present invention, the dependence on a centralized trusted entity is eliminated by using the blockchain, and depending only on the blockchain for initialization improves the state updating and reading speeds.

IPC Classes  ?

• G06F 21/57 - Certifying or maintaining trusted computer platforms, e.g. secure boots or power-downs, version controls, system software checks, secure updates or assessing vulnerabilities
• H04L 9/28 - Arrangements for secret or secure communicationsNetwork security protocols using particular encryption algorithm

Abstract

The present application relates to the technical field of solar cells, and in particular to a perovskite thin film, a seed crystal-assisted film forming method, and a perovskite solar cell. A first aspect of the present application provides a perovskite thin film, comprising a base and a perovskite thin film layer bonded to the surface of the base, wherein the perovskite thin film layer is formed on the base by a mixed solution containing all-inorganic perovskite quantum dots and a perovskite precursor solution. Under the synergistic effect of the all-inorganic perovskite quantum dots and the perovskite precursor solution, the defects of the perovskite thin film can be overcome. The perovskite thin film layer of the present application has the prospects of being applied to other fields of photoelectric information functional materials, such as photoelectric detectors, LED light-emitting devices, and field effect transistors. In the film forming process of the mixed solution of the perovskite precursor solution, the all-inorganic perovskite quantum dots serve as seed crystals, and can induce the crystallization and rapid film forming of the mixed solution, thereby solving the problem that the forming of perovskite thin films is difficult and is low in efficiency.

IPC Classes  ?

• H01L 51/48 - Processes or apparatus specially adapted for the manufacture or treatment of such devices or of parts thereof
• H01L 51/46 - Selection of materials
• H01L 51/42 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation

Abstract

An electromagnetic wave control apparatus includes an upper electrode layer, a lower electrode layer, a liquid crystal layer, and a first metamaterial layer disposed between the upper electrode layer and the lower electrode layer. The first metamaterial layer includes a first array including alignment unit structures. A first surface of the alignment unit structure is a surface that is of the alignment unit structure and that faces away from the liquid crystal layer. A length-to-width ratio of the first surface of the alignment unit structure is greater than 1. A length of the first surface, a width of the first surface, and a spacing between two adjacent alignment unit structures range from 1 nm to 5000 nm.

IPC Classes  ?

• G02F 1/1337 - Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers

Abstract

The present invention discloses an ESD protection circuit comprising resistor vias. It comprises a plurality of ESD devices connected in parallel, with each ESD device comprising a resistor and a two-terminal switch (e.g. an OTS component) connected in series. The resistor is formed in a resistor via disposed vertically with the two-terminal switch and filled with at least a conductive material with high resistivity.

IPC Classes  ?

• H02H 9/00 - Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
• H02H 9/02 - Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess current

Abstract

A continuous-discontinuous combined fracture simulation method for a two-dimensional solid. The method comprises: discretizing a two-dimensional solid into finite elements, so as to obtain master/slave node mapping linked-list relationships (S100); determining, according to whether local stress applied to the finite elements satisfies a strength criterion, whether a crack is produced (S200); if a crack is produced in the finite elements, activating corresponding pre-embedded cohesive elements, updating the master/slave node mapping linked-list relationships of the finite elements, and making the cohesive elements at the crack simultaneously enter a yield state, wherein mechanical behaviors of the cohesive elements are controlled by a strain softening constitutive curve (S300); and integrating the node force and mass of slave nodes into a master node according to the master/slave node mapping linked-list relationships, and updating the speeds and displacements of the master node and the slave nodes by means of a control equation (S400). The complete continuity of a two-dimensional solid before fracture is guaranteed, and the problem of a value being unstable due to it being necessary to split a local node of an element when a crack is generated can also be prevented, thereby improving the calculation efficiency.

IPC Classes  ?

• G06F 30/23 - Design optimisation, verification or simulation using finite element methods [FEM] or finite difference methods [FDM]

Abstract

Disclosed is a process for preparing fused aromatic amine from isocyanide and cyclopropene.

IPC Classes  ?

• C07C 209/60 - Preparation of compounds containing amino groups bound to a carbon skeleton by condensation or addition reactions, e.g. Mannich reaction, addition of ammonia or amines to alkenes or to alkynes or addition of compounds containing an active hydrogen atom to Schiff's bases, quinone imines, or aziranes
• C07C 211/57 - Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton having amino groups bound to carbon atoms of six-membered aromatic rings being part of condensed ring systems of the carbon skeleton
• C07C 211/48 - N-alkylated amines
• C07D 307/77 - Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom ortho- or peri-condensed with carbocyclic rings or ring systems

Abstract

A P-type gate HEMT device includes a substrate, a buffer layer, a channel layer, and a barrier layer sequentially arranged from bottom to top. A first P-type material layer is arranged on the barrier layer. A first source and a first drain are respectively arranged on two sides of the first P-type material layer. A first conductive layer is arranged on the first P-type material layer. A second P-type material layer is connected to the first P-type material layer. A second conductive layer is connected to the second P-type material layer. A third conductive layer is connected to the second P-type material layer. The first P-type material layer, the first source, the first drain, and the first conductive layer form a normally-off N-channel transistor. The second P-type material layer, the second conductive layer, and the third conductive layer form a normally-on P-channel transistor.

IPC Classes  ?

• H01L 29/778 - Field-effect transistors with two-dimensional charge carrier gas channel, e.g. HEMT
• H01L 29/20 - Semiconductor bodies characterised by the materials of which they are formed including, apart from doping materials or other impurities, only AIIIBV compounds
• H01L 29/10 - Semiconductor bodies characterised by the shapes, relative sizes, or dispositions of the semiconductor regions with semiconductor regions connected to an electrode not carrying current to be rectified, amplified, or switched and such electrode being part of a semiconductor device which comprises three or more electrodes

Abstract

The present invention provides an mRNA vaccine encoding the protein(s) PcrV and/or OprF-I. The mRNA molecule encodes at least one of 1) the protein PcrV; and 2) the protein OprF and the protein OprI. The vaccine prepared from the mRNA designed by the present invention has an excellent prophylactic and/or therapeutic effect on diseases caused by Pseudomonas aeruginosa.

IPC Classes  ?

• C12N 15/31 - Genes encoding microbial proteins, e.g. enterotoxins
• C07K 14/21 - Peptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from bacteria from Pseudomonadaceae (F)
• A61K 39/12 - Viral antigens
• A61K 39/104 - Pseudomonas
• A61P 31/00 - Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics

Abstract

Disclosed in the present application is a method for improving the experimental flux of an interaction between a compound and a protein. In the method of the present application, a plurality of mixture systems are formed by means of using a plurality of compounds to be tested according to a certain mixing rule, and a corresponding relationship between the interaction ability of each compound to be tested and a target protein and the mixture systems is established, so as to analyze the target protein corresponding to the compound to be tested by a high throughput method. The analysis method of the present application can increase the experimental detection flux of an existing compound to be tested-target protein by at least 10 times, and can reduce the experimental cost and time by at least 90%, thereby greatly reducing the labor, time, and experimental consumables cost, and having an obvious economic significance.

IPC Classes  ?

• G01N 33/68 - Chemical analysis of biological material, e.g. blood, urineTesting involving biospecific ligand binding methodsImmunological testing involving proteins, peptides or amino acids
• G16B 40/00 - ICT specially adapted for biostatisticsICT specially adapted for bioinformatics-related machine learning or data mining, e.g. knowledge discovery or pattern finding

Abstract

An artificial-limb temperature sensing system and a preparation method therefor. The artificial-limb temperature sensing system comprises a temperature sensor, a flexible thermoelectric device, a phase-change heat storage layer and a controller, wherein an input end of the controller is electrically connected to an output end of the temperature sensor, and an output end of the controller is electrically connected to an input end of the flexible thermoelectric device; the temperature sensor is used for measuring an environment temperature and outputting same to the controller; the controller is used for receiving the environment temperature which is measured by the temperature sensor; when the environment temperature is within a first preset range, the controller controls the flexible thermoelectric device to generate heat, and when the environment temperature is within a second preset range, the controller controls the flexible thermoelectric device to perform cooling; and the phase-change heat storage layer is used for storing heat which is generated by a hot end when the flexible thermoelectric device performs cooling. The artificial-limb temperature sensing system has a simple structure and is convenient to control, and has the functions of heating or performing refrigeration in a complex temperature environment, so as to simulate the skin of a human body for constant-temperature regulation and control, such that the artificial-limb temperature sensing system can be stably used for a long time.

IPC Classes  ?

• G05D 23/20 - Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature

Abstract

Provided are a lipid compound and a composition thereof. The lipid compound comprises: a lipid compound represented by general formula (I) and/or (II), or a pharmaceutically acceptable salt of the lipid compound, or a solvate of the lipid compound, or a lipid nanoparticle formed by the lipid compound. The lipid compound is non-toxic, and the lipid nanoparticle formed by the lipid compound can efficiently deliver nucleic acids with high encapsulation efficiency and stability.

IPC Classes  ?

• C07C 323/50 - Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups containing thio groups and carboxyl groups bound to the same carbon skeleton
• A61K 9/127 - Synthetic bilayered vehicles, e.g. liposomes or liposomes with cholesterol as the only non-phosphatidyl surfactant
• C12N 15/11 - DNA or RNA fragmentsModified forms thereof

Abstract

An image display method, an image display apparatus, a device and a storage medium. The method comprises: acquiring an original image (S100); performing image analysis on the original image according to a preset image analysis model, so as to obtain a target depth map (S200); performing image synthesis on the target depth map according to a preset virtual viewpoint synthesis algorithm, so as to obtain a plurality of target images of different viewing angles (S300); compiling the plurality of target images of different viewing angles, so as to obtain a target image set (S400); and transmitting the target images in the target image set to different directions by means of a light-splitting device, so as to present the plurality of target images of different viewing angles (S500). A plurality of target images of different viewing angles are transmitted to different directions by means of a light-splitting device, such that by means of the light-splitting device transmitting the target images of different viewing angles, a user can view a 3D displayed image without wearing 3D glasses, and 3D image display is realized without human eye tracking.

IPC Classes  ?

• G06F 3/147 - Digital output to display device using display panels
• G06T 7/00 - Image analysis
• G06T 7/50 - Depth or shape recovery
• G02B 30/26 - Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer’s left and right eyes of the autostereoscopic type

Abstract

Disclosed are a nucleic acid encapsulation and decapsulation method and a nucleic acid storage micro-fluidic chip. In a first aspect, provided is a nucleic acid encapsulation method. The encapsulation method comprises the following steps: taking and mixing an organic ligand, a metal ion, and a nanosphere having at least one nucleic acid fragment immobilized on the surface, reacting the organic ligand with the metal ion to generate a metal organic framework, and forming an encapsulation layer on the surface of the nanosphere to obtain an encapsulated nanosphere. The nanosphere is used as a carrier of the nucleic acid fragment, and the metal organic framework is encapsulated by means of the organic ligand and the metal ion, such that an encapsulation layer is rapidly formed on the surface of the carrier, thus realizing the protection of the nucleic acid fragment encapsulated in the encapsulation layer, with good protection against free radicals. ultraviolet rays, and the like. The whole encapsulation process is short in consumed time and easy to operate, and a highly toxic substance does not need to be used for processing the encapsulation layer in the subsequent decapsulation process, such that the whole encapsulation and decapsulation process is safer.

IPC Classes  ?

• C12N 15/10 - Processes for the isolation, preparation or purification of DNA or RNA
• C12Q 1/6806 - Preparing nucleic acids for analysis, e.g. for polymerase chain reaction [PCR] assay
• C12Q 1/6869 - Methods for sequencing
• B01L 3/00 - Containers or dishes for laboratory use, e.g. laboratory glasswareDroppers
• C08G 83/00 - Macromolecular compounds not provided for in groups

Abstract

A crystal preparation apparatus, which belongs to the technical field of superhard material synthesis. The crystal preparation apparatus comprises a thermal insulation and pressure transfer pipe, two electrically conductive blocks, a polyhedral block and a heating body. A channel passes through a space between two opposite faces of the polyhedral block, and one electrically conductive block, the thermal insulation and pressure transfer pipe and the other electrically conductive block are sequentially arranged in the channel in the axial direction of the channel. The heating body has a cavity that accommodates materials, and the heating body is arranged in the thermal insulation and pressure transfer pipe in a penetrating manner and is respectively connected to the two electrically conductive blocks.

IPC Classes  ?

• C30B 29/40 - AIIIBV compounds
• C30B 1/10 - Single-crystal growth directly from the solid state by solid state reactions or multi-phase diffusion
• C30B 1/12 - Single-crystal growth directly from the solid state by pressure treatment during the growth

Abstract

A boron suboxide preparation device (100), comprising a housing (10), a conductive assembly (20), a thermal insulation element (30), and a shielding assembly (40). A first accommodating cavity (101) and a second accommodating cavity (102) which are communicated are defined and formed in the housing (10), and a through hole (103) communicated with the first accommodating cavity (101) is formed in the housing (10); the conductive assembly (20) comprises a first conductive member (201), a second conductive member (202) and a third conductive member (203), the first conductive member (201) passes through the through hole (103) and the first accommodating cavity (101) in sequence, and the second conductive member (202) is located between the first conductive member (201) and the third conductive member (203); the thermal insulation element (30) passes through the second accommodating cavity (102) and wraps the third conductive member (203); and the shielding assembly (40) comprises an insulating element (401) and a coating element (402), the third conductive member (203) wraps the insulating element (401) and the coating element (402) in sequence, and the coating element (402) is configured to coat a chemical reaction sample (50). A high-temperature and high-pressure environment can be effectively provided, and the generation of millimeter-scale large-size boron suboxide crystal grains is achieved.

IPC Classes  ?

• B01J 3/06 - Processes using ultra-high pressure, e.g. for the formation of diamondsApparatus therefor, e.g. moulds or dies
• C01B 35/10 - Compounds containing boron and oxygen

Abstract

A piezoelectric-driven device for dynamically loading a diamond anvil cell, belonging to the field of high-pressure experimental apparatuses, and comprising a press piston (500), a press cylinder (100), a support cylinder (200), a limiting member (300), a limiting cylinder (700) and piezoelectric ceramic (400). The press cylinder (100) comprises a support table (530), a support ring (510) and a first diamond anvil (520), the support ring (510) and the first diamond anvil (520) being coaxially arranged on the same side of the support table (530), one side of the press piston (500) being provided with a first avoidance groove (110), and a second diamond anvil (120) being arranged at the bottom of the first avoidance groove (110); the support cylinder (200) sleeves the press cylinder (100) and the press piston (500) separately, and the first diamond anvil (520) is arranged opposite the second diamond anvil (120); and the limiting member (300) sleeves the limiting cylinder (700), the limiting cylinder (700) sleeves the piezoelectric ceramic (400), and an elastic component (600) is arranged between the press piston (500) and the support table (530), such that the press piston (500) and the press cylinder (100) can quickly return to an initial state along a pressurizing path under an elastic force of the elastic component (600). The costs are low, and a safety factor is high.

IPC Classes  ?

• G01N 3/02 - Investigating strength properties of solid materials by application of mechanical stress Details
• G01N 3/00 - Investigating strength properties of solid materials by application of mechanical stress

Abstract

A testing device, relating to the technical field of cavity testing. The testing device comprises an assembly body (100), a hollow pressure transmission medium block (200), a first electric conductor (300), a second electric conductor (400), and a temperature measurement assembly (500). The first electric conductor (300) and the second electric conductor (400) are arranged on the inner side of the hollow pressure transmission medium block (200) at intervals. The assembly body (100) is provided between the first electric conductor (300) and the second electric conductor (400). The assembly body (100) comprises a first conductive portion (110), a second conductive portion (120), a thermal insulation assembly (130), and a heating body (140). The first conductive portion (110) and the second conductive portion (120) are respectively arranged at two ends of the heating body (140), and the thermal insulation assembly (130) is sleeved on the heating body (140). The temperature measurement assembly (500) comprises a temperature measurement element (510) and a connecting pipe (520) wrapping the temperature measurement element (510), and the connecting pipe (520) passes through the assembly body (100). By increasing the contact area between the conductive sheets (113, 123) and the conductive columns (111, 121), the contact resistance at the interface is reduced, so as to reduce the heat generated by the conductive columns (111, 121) and the conductive sheets (113, 123) at the contact position, and prevent the conductive sheets from being burnt through at a current greater than 600 A, thereby improving the temperature upper limit of the device.

IPC Classes  ?

• G01K 7/02 - Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat using thermoelectric elements, e.g. thermocouples
• G01K 1/14 - SupportsFastening devicesArrangements for mounting thermometers in particular locations
• G01K 15/00 - Testing or calibrating of thermometers

Abstract

An in-situ testing device and ultrasonic testing equipment. The in-situ testing device comprises a sample testing assembly, a temperature collector, and an ultrasonic transceiver. The sample testing assembly comprises a polyhedral block (500), a thermal insulation sleeve (400), a first thermal insulation plug (100), a second thermal insulation plug (200), and a sample sleeve (300), wherein the polyhedral block (500) is internally provided with the thermal insulation sleeve (400) in a penetrating manner; the thermal insulation sleeve (400) is provided with a channel, and the first thermal insulation plug (100), the sample sleeve (300) and the second thermal insulation plug (200) are sequentially provided in the channel along a direction from a first end to a second end of the thermal insulation sleeve (400); an accommodating groove (310) configured to accommodate a sample is formed on the sample sleeve (300); an opening of the accommodating groove (310) faces the first thermal insulation plug (100); and a heating sheet (420) configured to heat the sample sleeve (300) is provided in the channel. A temperature probe (600) of the temperature collector penetrates through the second thermal insulation plug (200) and abuts against the sample sleeve (300). The ultrasonic transceiver transmits an ultrasonic signal to a first end and receives an ultrasonic reflection signal reflected by the sample sleeve (300). Since the temperature probe (600) directly abuts against the sample sleeve (300), the in-situ testing device can ensure accurate control of the sample temperature.

IPC Classes  ?

• G01N 29/04 - Analysing solids
• G01N 29/32 - Arrangements for suppressing undesired influences, e.g. temperature or pressure variations

Abstract

The present application belongs to the technical field of super-elastic adhesives, and particularly relates to a super-elastic adhesive, a preparation method and the use. The present application provides a super-elastic adhesive, which comprises an elastic body and an adhesive film layer formed on the surface of the elastic body. The elastic body comprises a first polymer, and the adhesive film layer comprises a second polymer, the length of a molecular chain between cross-linking points of the first polymer being greater than the length of a molecular chain between cross-linking points of the second polymer, and the number of the cross-linking points of the first polymer being larger than the number of the cross-linking points of the second polymer. The super-elastic adhesive in the present application is an adhesive tape having low hysteresis and strong bonding strength, helps to stabilize an electric signal of a flexible electronic device, is more suitable for fatigue working conditions than an existing pressure-sensitive adhesive (viscoelastic adhesive) having high hysteresis and large residual strain, and can relieve adverse phenomena of instability such as creases and wrinkles caused by a viscoelastic adhesive in flexible electronic devices and foldable screens.

IPC Classes  ?

• C09J 7/24 - PlasticsMetallised plastics based on macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
• C09J 7/38 - Pressure-sensitive adhesives [PSA]
• C09J 133/08 - Homopolymers or copolymers of acrylic acid esters
• C09J 9/02 - Electrically-conducting adhesives

Abstract

A nano Bessel laser beam emitter and a method for manufacturing the same. The nano Bessel laser beam emitter includes a first Bragg reflecting layer (100), a light-emitting layer (200) and a second Bragg reflecting layer (300), where the first Bragg reflecting layer (100) is provided with a cylindrical through hole (110); the light-emitting layer (200) is provided on a surface of the first Bragg reflecting layer (100) and is configured to generate a light beam; and the second Bragg reflecting layer (300) is provided on the light-emitting layer (200) at a side distal to the first Bragg reflecting layer (100). According to the nano Bessel laser beam emitter, the cylindrical through hole (110) is formed in the first Bragg reflecting layer (100), so that the light beams are subjected to multiple reflections of the first Bragg reflecting layer (100) and the second Bragg reflecting layer (300) to generate a Bessel beam of a nano-scale light-emitting light spot, which improves the dimensional stability of the Bessel beam; and meanwhile, the nano Bessel laser beam emitter is simple in structure and small in size, and can realize the integration of miniaturized light sources.

IPC Classes  ?

• H01S 5/06 - Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
• H01S 5/20 - Structure or shape of the semiconductor body to guide the optical wave
• H01S 5/00 - Semiconductor lasers

Abstract

The present invention relates to the field of medicine. Specifically provided are a hemostatic sponge and a preparation method therefor. Components for preparing the hemostatic sponge comprise, by mass, 3-30 parts of a double bond-containing compound, 1-10 parts of chitosan, and 0.1-15 parts of a photoinitiator. Compared with existing commercial products, the hemostatic sponge of the present invention has a higher water absorption percentage and water absorption rate, and can quickly swell after absorbing water. When applied to a wound for hemostasis, the hemostatic sponge can quickly block the wound and achieve a hemostatic effect.

IPC Classes  ?

• A61L 24/00 - Surgical adhesives or cementsAdhesives for colostomy devices
• A61L 24/06 - Surgical adhesives or cementsAdhesives for colostomy devices containing macromolecular materials obtained by reactions only involving carbon-to-carbon unsaturated bonds
• A61L 24/08 - Polysaccharides
• C08F 251/00 - Macromolecular compounds obtained by polymerising monomers on to polysaccharides or derivatives thereof
• C08F 222/20 - Esters containing oxygen in addition to the carboxy oxygen
• C08F 220/58 - Amides containing oxygen in addition to the carbonamido oxygen
• C08F 2/48 - Polymerisation initiated by wave energy or particle radiation by ultraviolet or visible light
• C08F 299/00 - Macromolecular compounds obtained by interreacting polymers involving only carbon-to-carbon unsaturated bond reactions, in the absence of non-macromolecular monomers
• C08G 81/00 - Macromolecular compounds obtained by interreacting polymers in the absence of monomers, e.g. block polymers

Abstract

Disclosed in embodiments of the present application is an off-chip output stage driver circuit, comprising an amplification module for receiving an input signal, amplifying the input signal and then outputting a primary output signal; a driving module for generating a drive signal according to the primary output signal, the drive signal being used for driving the off-chip output stage circuit, and enabling the off-chip output stage circuit to generate an output stage current; and a calibration module for converting the output stage current into a comparison voltage, outputting an adjustment signal according to the comparison result of the comparison voltage and a reference voltage, and feeding the adjustment signal back to the driving module, so that the driving module adjusts the drive signal according to the adjustment signal, making the output stage current satisfy a preset condition.

IPC Classes  ?

• H03F 1/30 - Modifications of amplifiers to reduce influence of variations of temperature or supply voltage
• H03F 3/30 - Single-ended push-pull amplifiersPhase-splitters therefor

Abstract

The embodiments of the present application disclose a reconfigurable high-precision analog-to-digital or digital-to-analog converter, comprising: an input module, which is used for sampling an input signal and a feedback signal in an analog-to-digital conversion mode or sampling an input digital code in a digital-to-analog conversion mode; an integration module, which is connected to the input module, and is used for integrating the input signal and the feedback signal in the analog-to-digital conversion mode or outputting an analog signal in the digital-to-analog conversion mode; and a control module, which is connected to the integration module, and is used for generating a control clock, and generating the feedback signal and outputting a digital signal in the analog-to-digital conversion mode or calculating a differential value of the input digital code in the digital-to-analog conversion mode.

IPC Classes  ?

• H03M 1/02 - Reversible analogue/digital converters
• H03M 3/00 - Conversion of analogue values to or from differential modulation

Abstract

Provided is a construction method of a single-cell open chromatin-transcriptome co-sequencing library, which constructs an open chromatin-transcriptome co-sequencing library through a cell nucleus in-situ two-step Tn5 enzyme cleavage reaction. The method shortens the experimental process, and simplifies the physical separation process of mRNA in the construction of a transcriptome library. A Tn5 sequencing adapter sequence and a genome sequence of a reverse transcription primer are designed and an adapter is added to an mRNA-cDNA heteroduplex to avoid the addition of a sequencing adapter through ligation, thereby improving the reaction efficiency. Further provided is a construction system of the single-cell open chromatin-transcriptome co-sequencing library, which employs an independently developed reaction reagent system, reduces the preparation cost of a single-cell library and is widely applicable. The reaction efficiency and sequencing data quality are also improved, and the number of genes detectable by a single cell and the number of open chromatin fragments are significantly increased.

IPC Classes  ?

• C12Q 1/6806 - Preparing nucleic acids for analysis, e.g. for polymerase chain reaction [PCR] assay
• C12Q 1/6869 - Methods for sequencing
• C40B 50/06 - Biochemical methods, e.g. using enzymes or whole viable microorganisms
• C12N 15/11 - DNA or RNA fragmentsModified forms thereof

Abstract

The present disclosure provides an ion trap apparatus and a saddle point moving method for the ion trap apparatus. The ion trap apparatus comprises: an insulating base material, the insulating base material being a concave structure; and at least two segments of arc-shaped metal reflective electrodes, wherein the arc-shaped metal reflective electrodes cover the front side of the insulating base material, the front side being a concave surface; each segment of the arc-shaped metal reflective electrodes is electrically insulated; and each segment of the arc-shaped metal reflective electrodes is used to receive a radio frequency voltage which has the same frequency, the same phase and an adjustable amplitude. The apparatus may achieve ideal imaging while improving the light collection efficiency, thereby improving the success rate of the preparation of ion-photon entangled states.

IPC Classes  ?

• H01J 49/42 - Stability-of-path spectrometers, e.g. monopole, quadrupole, multipole, farvitrons

Abstract

Embodiments of the present disclosure relate to the technical field of unmanned aerial vehicles, and provide a flight decision generation method and apparatus, a computer device, and a storage medium. The method comprises: obtaining task demand data; constructing a flight decision model according to the data, wherein the flight decision model comprises a plurality of pieces of decision tuple data, the decision tuple data comprises original hyperparameter groups, and the original hyperparameter groups are gathered to form an original hyperparameter population; constructing a corresponding target learning function on the basis of the flight decision model; updating and optimizing the original hyperparameter population according to the target learning function to obtain a target hyperparameter population; and obtaining a target flight decision of an unmanned aerial vehicle according to the target hyperparameter population. According to the present application, on the basis of establishing the flight decision model, by defining the target learning function, the unmanned aerial vehicle is made to further update and optimize the original hyperparameter population by means of an optimization target of the target learning function on the basis of completing an autonomous navigation task, so as to obtain the target flight decision, such that the flexibility of the autonomous navigation task of the unmanned aerial vehicle is improved.

IPC Classes  ?

• G06N 3/00 - Computing arrangements based on biological models

Abstract

The present disclosure generally relates to high-performance flexible thermoelectric generators (f-TEGs) for heat concentration and dissipation. In some embodiments, the f-TEGs can be incorporated into wearable devices. The f-TEG device can include an f-TEG network of thermoelectric units that include multifunctional thin copper disks that can be used as electrodes, heat concentrators and spreaders, spacers, and flexibility enablers. Each electrode can include a spacer extending therefrom to suppress the heat loss between the hot and the cold sides through conduction and convection across a thermoelectric pillar disposed therebetween. In some embodiments, the f-TEG network can be associated with a fabric to provide good wearability and comfort even in wet thermal environments.

IPC Classes  ?

• H10N 10/17 - Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects operating with only the Peltier or Seebeck effects characterised by the structure or configuration of the cell or thermocouple forming the device
• H10N 10/13 - Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects operating with only the Peltier or Seebeck effects characterised by the heat-exchanging means at the junction

Abstract

The present application relates to the technical field of data processing, and more in particular, to a multiview 3D image encoding method, apparatus, system and storage medium. The encoding method comprises the steps of acquiring image data, and obtaining depth information containing a depth value of each pixel in an image based on the image data; grouping the image data into blocks, and calculating a perceived angular resolution of each object in blocks based on the depth information of each object in blocks respectively, wherein the perceived angular resolution of an object in blocks is a required maximum angular resolution that enables identification of the object in blocks; and configuring a respective encoding parameter for each object in blocks based on the perceived angular resolution of a respective one object in blocks, wherein the encoding parameter is configured such that a requirement of respective encoding parameter for a respective object in blocks with a respective perceived angular resolution is met. The present application aims to identify and discard the existence of redundant information in the image, which is a lossless compression method.

IPC Classes  ?

• H04N 13/128 - Adjusting depth or disparity
• H04N 13/161 - Encoding, multiplexing or demultiplexing different image signal components

Abstract

The present invention relates to the technical field of electrochemistry, and in particular relates to a non-aqueous electrolyte and a secondary battery. The non-aqueous electrolyte described in the present invention comprises a non-aqueous organic solvent, a lithium salt, and an additive. The additive comprises at least one among the end monofluoro-substituted compounds as shown in structural formula 1 to structural formula 3. Furthermore, the present application further discloses a lithium ion battery comprising the non-aqueous electrolyte. According to the present application, the end monofluoro-substituted compound shown in structural formula 1, structural formula 2, or structural formula 3 is added into the non-aqueous electrolyte, so that direct contact between solvent molecules having relatively high reactivity and a positive/negative electrode interface can be effectively reduced so as to reduce adverse side reactions on the electrochemical cycle in a secondary battery.

IPC Classes  ?

• H01M 10/0567 - Liquid materials characterised by the additives
• H01M 10/0569 - Liquid materials characterised by the solvents
• H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
• H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries

Abstract

A gas adsorption separation system, comprising: at least two adsorption mechanisms, the adsorption mechanisms being adjacently arranged in pairs, wherein every two adjacent adsorption mechanisms can be alternately in an adsorption stage and a regeneration stage; at least one thermoelectric converter, which is arranged between two adjacent adsorption mechanisms and is used for changing the flow direction of a current to extract heat from an adsorption mechanism in the adsorption stage and convey the heat to an adsorption mechanism in the regeneration stage; at least two feeding mechanisms, the feeding mechanisms being used for providing a mixture of gases to the adsorption mechanisms; and at least two discharging mechanisms, the discharging mechanisms being used for discharging adsorbates discharged by the adsorption mechanisms in the regeneration stage and discharging gases, other than the adsorbates, remaining in a mixture of gases discharged by the adsorption mechanisms in the adsorption stage. Thermal coupling between two adsorption mechanisms is achieved by means of a thermoelectric converter, so that heat needed in the regeneration stage migrates between the two adsorption mechanisms in a reciprocating manner, thereby achieving utilization of heat multiple times and reducing energy consumption.

IPC Classes  ?

• B01D 53/04 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
• H01L 35/32 - SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR - Details thereof operating with Peltier or Seebeck effect only characterised by the structure or configuration of the cell or thermocouple forming the device

Abstract

Disclosed in the present invention are a method, apparatus and system for classifying green, blue and gray infrastructures, and a medium. The method comprises: acquiring a multi-spectral picture corresponding to a target area, and obtaining target optical band image sets and a color orthophotograph on the basis of the multi-spectral picture; and obtaining a sample file on the basis of the color orthophotograph, and obtaining, according to the target optical band image sets and the sample file, a green, blue and gray infrastructure classification result corresponding to the target area. In the present invention, target optical band image sets and a color orthophotograph are obtained according to a multi-spectral picture corresponding to a target area, and a green, blue and gray infrastructure classification result corresponding to the target area is obtained in conjunction with a sample file that is obtained on the basis of the color orthophotograph, and the target optical band image sets, thereby improving the accuracy and efficiency of classification of green, blue and gray infrastructures.

IPC Classes  ?

• G06V 10/764 - Arrangements for image or video recognition or understanding using pattern recognition or machine learning using classification, e.g. of video objects
• G06K 9/62 - Methods or arrangements for recognition using electronic means
• G06T 7/90 - Determination of colour characteristics
• G06V 10/56 - Extraction of image or video features relating to colour
• G06V 10/74 - Image or video pattern matchingProximity measures in feature spaces
• G06V 20/17 - Terrestrial scenes taken from planes or by drones

Abstract

Provided in the present application are a p-GaN ohmic contact electrode and a preparation method therefor, and an electronic element. The p-GaN ohmic contact electrode comprises a p-GaN material layer and an electrode, wherein the electrode comprises a strong-oxytropism metal layer, which is arranged on a surface of the p-GaN material layer, and a high work function metal layer, which is arranged on the strong-oxytropism metal layer. GaO generated on a surface of p-GaN is reduced by using the strong oxytropism of strong-oxytropism metal during a later annealing process, thereby achieving the effect of removing GaO on the surface in situ, and reducing the height of a Schottky barrier between metal/p-GaN. In addition, metal having a high work function and good compactness is selected as a second metal layer in electrode metal. The second metal layer serves as a barrier layer to prevent the outward diffusion of the strong-oxytropism metal; moreover, during the annealing process, elements of the second metal layer diffuse to the p-GaN material layer, come into direct contact with the p-GaN material layer, and tend to form ohmic contact with p-GaN.

IPC Classes  ?

• H01L 29/45 - Ohmic electrodes
• H01L 21/04 - Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer

Abstract

The present application provides a composite solid state electrolyte slurry, a film, a preparation method, and an all solid state battery. The method includes: adding a polymer into a non-polar solvent and mixing the polymer and the non-polar solvent to obtain a sol; adding a solid state electrolyte powder and a lithium salt solution into the sol and mixing the solid state electrolyte powder, the lithium salt solution and the sol to obtain a composite solid state electrolyte slurry; the non-polar solvent is an organic solvent that does not react with the solid state electrolyte powder; the high shear force of the sol is used to disperse the solid state electrolyte powder and lithium salt solution, thereby the solid state electrolyte powder and the lithium salt solution are uniformly dispersed in the sol.

IPC Classes  ?

• H01M 10/056 - Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
• H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries

Abstract

The present application relates to the field of semiconductors, and relates to a resonant chip and a manufacturing method therefor. The resonant chip comprises: a dielectric layer. A resonant channel is provided on the dielectric layer; the dielectric layer comprises a resonator and a transitional dielectric layer; a resonator is formed on the surface of the transitional dielectric layer; the resonant channel sequentially passes through the resonator and the transitional dielectric layer; the resonator is used for forming a resonance response with excitation light, and confining electric field energy in the resonant channel; the transitional dielectric layer is used for blocking the passage of biomolecules, so that a biological reaction only occurs in the resonant channel. Compared with a metal cladding layer, the use of the dielectric layer in the present application avoids the problems of energy loss of electromagnetic waves and light quenching. The resonant channel is placed into the resonator to bind an electromagnetic field in the resonant channel, so that a single-molecule fluorescence process in the resonant channel is enhanced. The biological reaction only occurs in the resonant channel, so that the probability of capturing reactants is controlled and improved.

IPC Classes  ?

• H01P 7/10 - Dielectric resonators

Abstract

Disclosed in the present invention are a multi-precision accelerator based on a systolic array and a data processing method therefor. The method comprises: obtaining data precision of preset input data, wherein the data precision is used for representing the number of data bits; determining segment data corresponding to the input data according to the data precision and the input data; and mapping the segment data to a multiplier unit group, and performing multiply-accumulate operation on the segment data by means of a multi-precision accelerator. According to embodiments of the present invention, different pieces of segment data are determined according to the data precision of the input data, then the segment data is mapped to the multiplier unit group, and the segment data is subjected to multiply-accumulate operation by means of the multi-precision accelerator, such that the multiply-accumulate operation of higher throughput can be realized with less memory bandwidth consumption.

IPC Classes  ?

• G06F 7/575 - Basic arithmetic logic units, i.e. devices selectable to perform either addition, subtraction or one of several logical operations, using, at least partially, the same circuitry

Abstract

A quantitative evaluation method for a science and technology enterprise, an intelligent terminal, and a storage medium. The method comprises: acquiring a track of the science and technology enterprise, and obtaining a track score according to the track (S100); constructing a science and technology enterprise scoring model, and obtaining a staged success probability model according to the science and technology enterprise scoring model and the track score (S200); acquiring a preset staged development time consumption reference value, and obtaining an incubation rate model according to the staged development time consumption reference value (S300); acquiring information quantity parameters of a research and development progress, and obtaining a time distribution model of a success probability according to the information quantity parameters, the incubation rate model, and the staged success probability model (S400); and acquiring a preset staged success value reference value, and obtaining an estimated return rate of the science and technology enterprise according to the staged success value reference value and the time distribution model of the success probability (S500), so as to realize probability-based accurate quantitative evaluation of success of small and medium-sized science and technology enterprises.

IPC Classes  ?

• G06Q 10/06 - Resources, workflows, human or project managementEnterprise or organisation planningEnterprise or organisation modelling

Abstract

A marine electromagnetic acquisition device, comprising a sinking coupling frame (1) and a plurality of field signal acquirers (3). The sinking coupling frame (1) comprises a plurality of connecting structures (2); the plurality of connecting structures (2) are distributed in a staggered manner in space and are connected to each other to form a frame structure; the frame structure is configured to be suspended in a marine field to be detected; field signal acquirers (3) are provided in at least some of the connecting structures (2), and at least one field signal acquirer (3) is provided in one connecting structure (2); each field signal acquirer (3) is used for collecting field signals in the marine field to be detected. The marine electromagnetic acquisition device can be stably suspended in seawater between the seabed and the sea surface, and can perform multi-direction and multi-angle acquisition on field signals in the seawater at any depth of water.

IPC Classes  ?

• G01V 1/38 - SeismologySeismic or acoustic prospecting or detecting specially adapted for water-covered areas