A large-span corridor structure composed of arc-shaped cantilever trusses and stay cable supporting structures is provided, comprising cantilever trusses with arc-shaped facades, orthogonal connecting trusses at a corridor, connecting trusses at cantilever portions, corridor truss structures, and stay cable supporting structures; the cantilever trusses with arc-shaped facades are composed of two sets of ultra-long cantilever trusses with arc-shaped facades and triquetrous planes which are supported by ground and symmetrical, and each are set of ultra-long cantilever trusses with arc-shaped facades and triquetrous planes are formed of several ultra-long cantilever trusses with arc-shaped facades and triquetrous planes arranged in parallel at a certain distance. The beneficial effects of the present disclosure are: the large-span corridor structure composed of arc-shaped cantilever trusses and stay cable supporting structures provided serves the combination of the cantilever trusses with arc-shaped facades and the orthogonal truss at the corridor as the supporting truss core system, and the performance of lateral force resistance and torsion resistant of the overall structure can be enhanced by the connecting trusses at cantilever portions.
ZHEJIANG PROVINCE INSTITUTE OF ARCHITECTURAL DESIGN AND RESEARCH (China)
Inventor
Wang, Zhen
Zhao, Yang
Ding, Zhi
Pang, Chongan
Wang, Ruhao
Qu, Haochuan
Abstract
The invention relates to a space curved reticulated shell structure formed by stacking and combining rhombic dodecahedrons, comprising a one-way curved reticulated shell structure, a positive curvature two-way curved reticulated shell structure and a negative curvature two-way curved reticulated shell structure, the array combined revolution body is generated by rotating the orthogonal array combination body around the space rotation axis by a certain angle; boundary cutting structures are generated by the plane boundary in span direction or the curved boundary in span direction cutting the array combined revolution body; the plane boundary cutting structure respectively generates a one-way curved reticulated shell structure, a positive curvature two-way curved reticulated shell structure and a negative curvature two-way curved reticulated shell structure respectively through one-way bending arching, positive curvature two-way bending arching and negative curvature two-way bending arching.
Disclosed in the present invention are a bucket foundation with a resistance reduction system, and a cutter suction penetration installation method. The bucket foundation with a resistance reduction system comprises a bucket foundation, a resistance reduction system, and a suction penetration system with a cutter suction device. The resistance reduction system comprises a resistance reduction bucket sleeve, which is provided with thixotropic slurry channels and thixotropic slurry outlets, thixotropic slurry pipes and a thixotropic slurry system. The resistance reduction system realizes resistance reduction by means of pressing thixotropic slurry into a gap between the resistance reduction bucket sleeve and a soil body. The suction penetration system with the cutter suction device comprises the cutter suction device, a suction penetration bucket cover and a negative-pressure system, wherein the cutter suction device includes a reamer head, a cement slurry ejection port and a high-pressure water ejection port. The suction penetration system is used for realizing suction penetration, soil-rock cutter suction and soil body reinforcement. The resistance reduction system and the cutter suction device of the present invention can effectively reduce the penetration resistance of the bucket foundation and increase the penetration construction speed, and are suitable for more construction terrains; and a soil body reinforcement operation improves the seepage stability of the bucket foundation, thereby effectively controlling deformation and uneven settlement during long-term construction.
An aero-engine fault diagnosis method based on 5G edge computing and deep learning is provided. The method includes following steps: performing data acquisition, preprocessing, and storage based on a new 5th Generation Mobile Communication Technology (5G) cloud-edge-terminal network architecture; constructing a machine learning module in an edge cloud, where historical data stored in the aero-engine fault database management system is used as training samples of the machine learning module; and performing intelligent self-management of the aero-engine gear fault simulation platform and the aero-engine fault database management system.
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
Disclosed in the present invention are a test device and test method for synchronous grouting research of a shield tunnel. The test device comprises: a model body unit, which comprises a model box, a shield tail model, a shield tunnel model and a sliding assembly, wherein the shield tunnel model, the sliding assembly and the shield tail model are sequentially arranged at the bottom of the model box from bottom to top, a window for pulling out the shield tail model is provided directly in the front of the model box, a grouting hole is provided in the shield tail model, and a grouting communication hole is provided in the shield tunnel model; a grouting device, which grouts, through the grouting communication hole, a space generated by pulling the shield tail model; a pulling device, which is connected to the shield tail model and is configured to pull out the shield tail model from the model box; and a data measurement device, which comprises one or more of a mortar stress sensor, an earth pressure cell, a pore water pressure transducer and a displacement meter and is configured to measure and record changes in all kinds of test data in a synchronous grouting process.
Disclosed in the present invention are an extensible-retractable device and an annularly extensible-retractable tunnel steel arch. The extensible-retractable device comprises: a first U-shaped connecting member, both sides of which are provided with a plurality of sets of adjusting slots arranged in an adjustment direction; a second U-shaped connecting member, both sides of which are provided with first through holes, the second U-shaped connecting member being inserted into the first U-shaped connecting member, and U-shaped openings of said connecting members facing each other so as to form an accommodating space; first springs, which abut against both the first U-shaped connecting member and the second U-shaped connecting member, and are located in the accommodating space; an elastic pin, both ends of which pass through the first through holes in the two sides and then inserted into one set of the adjusting slots; and an initial fixing bolt which is detachably connected to the first U-shaped connecting member and the second U-shaped connecting member. The annularly extensible-retractable tunnel steel arch comprises an upper arch, two lower arches and two extensible-retractable devices, two ends of the upper arch being connected to the two lower arches by means of the two extensible-retractable devices respectively.
A telescopic device includes a first U-shaped connector with a plurality sets of adjustment slots defined in two sides thereof and arranged along an adjustment direction; a second U-shaped connector defining first through holes in two sides thereof, the second U-shaped connector being inserted into the first U-shaped connector with U-shaped openings thereof opposite to each other to define an accommodating space; a first spring located in the accommodating space and abutting against the first and second U-shaped connectors, respectively; an elastic pin with two ends thereof extending through the first through holes and engaging into one of the plurality sets of adjustment slots; and an initial fixing pin being detachably connected to the first and second U-shaped connectors. A telescopic annular tunnel steel arch includes an upper arch, two lower arches and two telescopic devices connecting two ends of the upper arch to the two lower arches, respectively.
E21D 11/22 - Clamps or other yieldable means for interconnecting adjacent arch members either rigidly, or allowing arch member parts to slide when subjected to excessive pressure
A method for configuring and updating random access resources in a multi-antenna multiple-input multiple-output (MIMO) environment is provided, including: initializing a base station; broadcasting, by the base station, the available RACH resources using an SIB2; initiating, by users who have data to be sent in an uplink, random access processes on the RACH resources configured by the base station; and redefining an S state, an I state, and a C state. Configuration of the RACH resources may be gradually and dynamically optimized according to the quantity of antennas of the base station and a utilization rate threshold of the RACH resources, so that waste of random access RACH resources is reduced provided that an MIMO system meets a required user/service access success probability; a utilization of the resources is improved by fully utilizing spatial diversity characteristics of the MIMO system.
The present invention relates to a vacuumization-flocculation-solidification integrated device for slurry waste, and a use method. The device comprises an outer supporting truss, a vacuum barrel wall, a flocculation stirring system, and a rotary spraying solidification system. The use method for the device comprises the steps of: levelling a site and mounting supporting trusses and the vacuum barrel wall; assembling the flocculation stirring device and hoisting same to the top of the vacuum barrel wall; checking the air tightness; adding an APAM flocculant, and starting the flocculation stirring device and a vacuum pump; starting an air compressor; and extruding solidified soil from a soil outlet. The beneficial effects of the present invention are: a plurality of stages including flocculation, vacuum drainage, solidification, and soil discharge for slurry waste are continuously carried out; a solidification agent is well mixed with consolidated soil by means of rotary spraying technology to improve the strength of solidified soil; slurry waste is extruded by using the vacuum pump to accelerate dehydration of the slurry waste; the drainage area of the barrel wall is large, and thus the dehydration efficiency is further improved; the degree of assembling is high, it is easy to disassemble and reassemble, and recycling can be achieved.
The present invention relates to the field of Internet of Things-based control. Disclosed is a remote intelligent centralized control system device based on the Internet of Things. According to the remote intelligent centralized control system device based on the Internet of Things, a plurality of smart classrooms are each equipped with an interactive terminal, and the plurality of interactive terminals are electrically connected to a main server by means of network lines, such that on/off states of all controllable electrical devices associated with the interactive terminals can be synchronized to the main server in real time, thereby facilitating the involved staff learning about and controlling operation states of the controllable electrical devices in all the smart classrooms timely and clearly, without the need to confirm the operation states of the devices on site. Moreover, by means of network connection of the Internet of Things, the on/off of the controllable electrical devices can be remotely controlled, such that the workload involved is reduced to a certain extent, and the convenience of device management and control in the smart classrooms is improved.
An integrated remote control system for strong and weak current equipment. By means of the arrangement that two-way rods (6) are mated with a wing foldable plate (4), when an overheating phenomenon occurs, the two-way rods (6) at different connection positions change in opposite directions. On the one hand, a peripheral heat dissipation frame (3) is pushed away as a whole from a cabinet body (1), so that edges of an opening part of a heat opening are exposed, thereby remarkably accelerating the escape of internal heat along with air. On the other hand, the middle part of the wing foldable plate (4) is pulled into the peripheral heat dissipation frame (3), so that two ends of the wing foldable plate (4) rotate, thus the wing foldable plate changes from a complete coverage state into an inclined cross state relative to a heat intersection (401), thereby further increasing the heat dissipation area. Moreover, under the action of a monitoring module, an abnormal change at the cabinet body (1) can be recorded in time, for prompting a worker conveniently.
H02J 13/00 - Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the networkCircuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
12.
Propulsion control device of tunnel boring machine for 3D printing a tunnel
A propulsion control device of a 3D printing-based tunnel boring machine, includes two propulsion control modules, and each of which includes tunnel support assemblies, a propulsion control assembly and a barrel body, where a propulsion sliding sleeve is arranged on an outer surface, and several tunnel support assemblies are arranged on an outer side of each propulsion sliding sleeve. Support plates on the two propulsion control modules alternately rise to support a 3D printed tunnel pipe. In the propulsion control module with the support plates in a closed state, a propulsion hydraulic cylinder controls a propulsion hydraulic cylinder extending end to contract, so as to pull the propulsion sliding sleeve to a front section of the barrel body; and in the propulsion control module with the support plates in a support state, the barrel body continuously advances relative to the propulsion sliding sleeve.
E21D 9/087 - Making by using a driving shield with additional boring or cutting means with a rotary drilling-head cutting simultaneously the whole cross-section, i.e. full-face machines
E21D 9/11 - Making by using boring or cutting machines with a rotary drilling-head cutting simultaneously the whole cross-section, i.e. full-face machines
The present invention relates to use of a homoharringtonine compound in the preparation of a medicament for treating AIDS. The beneficial effects are: the homoharringtonine obtained by screening can effectively reduce the occurrence of HIV-1 PRF, and can significantly inhibit the replication of the HIV-1 virus in mode cells, THP1 cells and peripheral blood mononuclear cells, and inhibit the assembly of HIV-1 viral particles.
A61K 31/55 - Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having seven-membered rings, e.g. azelastine, pentylenetetrazole
A monitoring management system for a remote control device, the system comprising: a first collection unit (11), which collects first monitoring scene information comprising first control object information and first application object information; a first generation unit (12), which performs evaluation index matching on the first control object information to generate a first evaluation index set; a second generation unit (13), which performs control parameter extraction on the first control object information to generate a first control parameter set; a third generation unit (14), which traverses the first evaluation index set according to the first control parameter set to generate a first target function set; a first obtaining unit (15), which performs state extraction on the first application object information to obtain first real-time state information; a fourth generation unit (16), which inputs the first real-time state information and the first evaluation index set into a first screening model to generate evaluation index value screening result information; and a fifth generation unit (17), which optimizes the first control parameter set according to the first target function set and the evaluation index value screening result information, and performs remote control.
Disclosed in the present invention is a centralized control and management system for Internet-of-Things devices. An Internet-of-Things control terminal comprises: a control module, in which a first collection unit collects multi-dimensional mechanical parameters of a production device so as to obtain a mechanical parameter set, and in which a first control unit adjusts the production device according to an optimized optimal mechanical parameter set; and a signal module, which is used for transmitting to a smart regulation and control end the mechanical parameter set obtained by the control module, and transmitting to the control module the optimized mechanical parameter set transmitted by the smart regulation and control end. The smart regulation and control end comprises: a second collection unit, which is used for collecting multi-dimensional production parameters of a working environment, so as to obtain a production parameter set; and a first processing unit, which is used for setting a dynamic standard according to the production parameter set and the mechanical parameter set.
G05B 19/418 - Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
16.
UPWARD EARTH PRESSURE SHIELD EXCAVATION FACE STABILITY TEST APPARATUS AND USE METHOD THEREOF
An upward earth pressure shield excavation face stability test apparatus and a use method thereof. The apparatus comprises a model main body structure, a propulsion control system, a data acquisition system, and a water level control system, the model main body structure comprising a model box (14), a horizontal tunnel model (11), and an upward shield model (21). The use method comprises a test preparation stage, an excavation face movement stage and a data processing stage. The apparatus and method can be used for studying a destabilization process of an upward shield excavation face, and observing ground surface displacement, changes of excavation face soil pressure, excavation face supporting force, excavation face pore water pressure and horizontal tunnel strain, and changes of a displacement field of a soil body above the excavation face during the destabilization process as well as rules of changing of various data during the destabilization process, and meanwhile, by means of adjusting test conditions or test parameters, working conditions can be changed so as to study effects of different working conditions on destabilization of an excavation face.
An eccentric hemisphere wheel-type self-adaptive robot comprises a front half body and a rear half body, which are connected through a connecting assembly. The front half body is provided with a detection mechanism and a control unit. Both sides of the front half body and the rear half body are provided with mounting grooves. A rotatable axle driver is arranged inside the mounting grooves. A deflection angle driver is connected to a side of the axle driver. A travel shaft is arranged on the outer side of the deflection angle driver. An end of the travel shaft is provided with an eccentric hemisphere driver. Eccentric plates are eccentrically connected to the two sides of the eccentric hemisphere driver. A travel driver is arranged outside the eccentric plate. A travel hemisphere is arranged outside the travel driver. The travel hemisphere is connected to the eccentric plate through a bearing. The present invention can improve the stability of the robot traveling on a bumpy road, thereby facilitating the collection of landform information. The vibration of parts inside the robot can also be reduced.
B25J 5/00 - Manipulators mounted on wheels or on carriages
B25J 11/00 - Manipulators not otherwise provided for
B62D 57/028 - Vehicles characterised by having other propulsion or other ground-engaging means than wheels or endless track, alone or in addition to wheels or endless track with ground-engaging propulsion means, e.g. walking members having wheels and mechanical legs
18.
Pullout resistance measuring device and method based on anchor plate foundation of submarine slope site
The present invention discloses a pullout resistance measuring device and method based on an anchor plate foundation of a submarine slope site. The measuring device includes a support, a moving beam, a hoisting mechanism, a cylinder device, a pulley assembly, a soil sample, a spiral anchor, a traction rope and a force measuring device, where the moving beam is movably mounted on the support; the hoisting mechanism is movably mounted on the moving beam; the cylinder device includes a cylinder; the pulley assembly is movably mounted on the cylinder corresponding to the vertical slit; the soil sample is filled in the cylinder; the spiral anchor is buried in the soil sample; one end of the traction rope is connected to the hoisting mechanism, and the other end is directly connected to the spiral anchor; and the force measuring device is arranged on the traction rope.
An aero-engine bearing fault diagnosis method based on variational mode decomposition and residual network includes the following steps: collect signals in different positions and directions with vibration acceleration sensors, which will be used as sample data; convert the said sample data into the target data type through normalization, slicing, variational mode decomposition and labeling, to get a training sample set; build a 1D-Resnet model, input the training sample set into the said 1D-Resnet model for training and save the model parameters when the model converges; diagnose the aero-engine bearing fault with the trained 1D-Resnet model, to get the diagnostic results. The method diagnoses and analyzes faults of the bearings of the rotating mechanical parts in aero-engines based on variational mode decomposition and residual network, which improves the diagnostic accuracy, and can provide an accurate and reliable basis for maintenance workers.
Disclosed is a pullout force measurement test device based on an anchor group effect of a marine pipeline, and a measurement method. The test device includes a support frame, a winch, a lifting plate, an upper hanging rope, a force measuring mechanism mounted on the upper hanging rope, two anchor plate mechanisms, and two lower hanging ropes, where each pair of the lower hanging ropes and the anchor plate mechanisms are located on both sides of the upper hanging rope; each anchor plate mechanism includes a model box, a soil sample filled in the model box, an anchor plate embedded in the soil sample, and a pulley assembly used for adjusting a pullout angle of the anchor plate; one end of each lower hanging rope is connected to the lifting plate, and the other end thereof is connected to the anchor plate of the corresponding anchor plate mechanism.
Beihang Hangzhou Innovation Institute Yuhang (China)
Inventor
Han, Song
Ren, Siqi
Wu, Minghui
Zhao, Shuai
Luo, Xiling
Wang, Luyao
Abstract
A privacy protection method and system for financial data sharing based on federated learning are provided. In recent years, due to the restrictions of data security and privacy protection laws and regulations, it is difficult to share data across institutions or departments. In order to make data transfer and transaction between different entities can be achieved without violating the national laws on data privacy and data security, the privacy protection method and system for financial data sharing based on federated learning is provided. A privacy collection intersection technology is adopted, so that two institutions, which may have many differences in business, but most of their customer groups are the same, jointly train a learning model.
Disclosed are a test device and method for researching the impact of an external load on a soil arching effect of a shield tunnel. The test device comprises a test chamber, a model tunnel and control modules. The model tunnel is formed by fitting together a plurality of segments which are engaged with each other and can move relative to each other. The model tunnel is installed in the middle of the test chamber, the space therearound being filled with test soil masses. Each control module consists of a gear motor and a variable-cross-section guide rod; the variable-cross-section guide rods are inserted into the model tunnel such that the diameter of the model tunnel can be reduced so as to cause ground loss and further generate a soil arching effect; an external load is applied by means of a steel plate and mass blocks on the surface of a soil sample so as to realize the impact of external load working conditions such as different load action positions, action ranges, action strengths and the like on a soil arching effect and soil pressure change of a shield tunnel; and by changing the ratio of sandy soil to rubber granules in a test soil sample, the impact of an external load on a soil arching effect of a shield tunnel under different formation hardness can be researched. Thus, references can be provided for practical engineering.
The present invention belongs to the technical field of tumor diagnosis. Disclosed are circMTMR14 for a tumor therapy target and a diagnostic biomarker, a kit therefor, and the use thereof. The base sequence of circMTMR14 is as shown in figure 1, and same is a new circular RNA formed by reverse splicing the fifth exon and the sixth exon of MTMR14 mRNA. Compared with normal patients, circMTMR14 is highly expressed in blood exosomes of patients with lung cancer and colorectal cancer, and the expression of circMTMR14 is positively correlated with the migration, invasion and metastasis capabilities of lung cancer cells. Therefore, circMTMR14, as a tumor therapy target and a diagnostic biomarker, is applied to tumor threatment and tumor diagnosis; and a new concept and direction for treatment-related drugs and diagnostic products is provided.
C12N 15/11 - DNA or RNA fragmentsModified forms thereof
C12N 15/113 - Non-coding nucleic acids modulating the expression of genes, e.g. antisense oligonucleotides
C12Q 1/6886 - Nucleic acid products used in the analysis of nucleic acids, e.g. primers or probes for diseases caused by alterations of genetic material for cancer
An operation control system for a gas-steam combined cycle generator unit-includes a real-time operation data acquisition module, to collect the operation parameter data and power generation data of a power plant unit, an operation status evaluation index mining module, to mine and analyze the operation parameter data of a power plant unit to get key parameters, an operation status evaluation index extraction module, to obtain characteristic variables, an operation characteristic parameter prediction module, to predict the said characteristic variables and obtain the predicted value and the corresponding change trend, and an operation intelligent control module, to realize the intelligent control of parameters. The operation control system can guide the optimal operation of power plant units, and improve their operation reliability and economy.
The invention relates to the technical field of computer vision in a remote monitoring system. The invention relates to a control method for improving the positioning precision of a pan-tilt camera. The control method comprises: firstly, initialization is performed; a panoramic image of an application scenario is displayed on a display screen of a computing platform, a user selects a region of interest in the panoramic image of the application scenario, an image of the region of interest is stored as a target image, and the user selects one target image from a plurality of target images as a target to be rotated. The beneficial effects of the invention are that: control is performed on a software layer, so there is no need to modify the hardware elements of a traditional camera, the target can be accurately positioned through software operation even if the rotating axis of a camera is inaccurate, and there is no need to replace camera devices. Thus, hardware deployment costs can be greatly reduced, and the service life of camera hardware is prolonged. The present invention allows the user to balance the speed and precision of panorama composition and matching calculations based on the actual situation. The present invention is highly flexible.
A variational mode decomposition and residual network-based aviation bearing fault diagnosis method, which relates to the technical field of electromechanical system fault diagnosis. The method comprises the following steps: collecting acceleration signals of different positions and directions by means of a vibration acceleration sensor to serve as sample data; by means of normalization, slicing, variational mode decomposition and labeling processing, converting the sample data into a target data type, and obtaining a training sample set; constructing a 1D-ResNet model, inputting the training sample set into the 1D-ResNet model for training until the model converges, and storing model parameters; and diagnosing a bearing fault of an aero-engine by means of the trained 1D-ResNet model to obtain a diagnosis result. Fault diagnosis and analysis are performed on a bearing of an aero-engine rotating mechanical part on the basis of the variational mode decomposition and a residual network, thus improving the diagnosis accuracy, and providing an accurate and reliable basis for maintenance workers.
A test device and method for simulating a pull-out failure of a seabed anchor plate in a plane. The test device for a pull-out failure of a seabed anchor plate comprises a support frame (1), a model box (2), and a winch (5), wherein the support frame (1) comprises a horizontal top plate (4) and a vertical support plate (3); a longitudinal slide rail (6) is arranged in a longitudinal slot (15); pulley assemblies are slidably fitted on the longitudinal slide rail (6); a steel strand drawn from the winch (5) bypasses a first pulley assembly (21) and a second pulley assembly (22) in sequence after passing through the longitudinal slot (15) and then is connected to an anchor plate (13); and the first pulley assembly (21) is fixed relative to the horizontal top plate (4). The test device for a pull-out failure of a seabed anchor plate can implement a vertical pull-out test and an inclined pull-out test on the anchor plate (13), reveal a failure mode of the anchor plate (13) at different embedding angles and an anti-pull-out bearing capacity exertion mechanism, and obtain an influence rule and an exertion process of embedding parameters of the anchor plate (13) and soil property parameters on the ultimate anti-pull-out bearing capacity of the anchor plate (13), so as to guide the engineering design of the anchor plate (13).
A method for configuring and updating random access resources in a multi-antenna MIMO scenario, comprising the steps of: a base station performing initialization; the base station broadcasting available RACH resources by means of a system information block 2 (SIB2); a user having uplink data to be sent initiating a random access process on a RACH resource configured by the base station; redefining the S state, I state, and C state; and dynamically optimizing the configuration of RACH resources according to the number of base station antennas and the utilization rate threshold of RACH resources.
ZHEJIANG TONGJI VOCATIONAL COLLEGE OF SCIENCE AND TECHNOLOGY (China)
Inventor
Wang, Zhen
Zhao, Yang
Ding, Zhi
Pang, Chongan
Wang, Ruhao
Qu, Haochuan
Abstract
The present invention relates to a rhombic dodecahedron stacked and combined spatial curved surface reticulated shell structure, comprising a unidirectional curved surface reticulated shell structure, a positive curvature bidirectional curved surface reticulated shell structure and a negative curvature bidirectional curved surface reticulated shell structure. An array combined rotating body is generated by rotating an orthogonal array combined body around a spatial rotating shaft by a certain angle; a boundary cutting structure is generated by a span-direction plane boundary or span-direction curved surface boundary cutting array combined rotating body; a plane boundary cutting structure separately generates a unidirectional curved surface reticulated shell structure, a positive curvature bidirectional curved surface reticulated shell structure and a negative curvature bidirectional curved surface reticulated shell structure by means of unidirectional bending arching, positive curvature bidirectional bending arching and negative curvature bidirectional bending arching. The present invention has the beneficial effects: the present invention is of a novel space structure form, and compared with the traditional space grid structure and the reticulated shell structure, the present invention has the advantages that the repeated array effect is achieved, joint connecting rod members are few, the rod member specifications are few, the anti-seismic ductility is high, and the appearance is attractive, etc.
The present invention relates to an arc-shaped cantilever truss and stay cable bearing combined large-span corridor structure, comprising a facade arc-shaped cantilever truss, a corridor position orthogonal connecting truss, a cantilever part connecting truss, a corridor truss structure, and a stay cable bearing structure. The facade arc-shaped cantilever truss is composed of two groups of facade arc-shaped plane triangular super-long cantilever trusses which are fixedly supported on the ground, the two groups of facade arc-shaped plane triangular super-long cantilever trusses are symmetrically arranged, and each group of facade arc-shaped plane triangular super-long cantilever trusses is formed by arranging a plurality of facade arc-shaped plane triangular super-long cantilever trusses in parallel at certain intervals. The beneficial effects of the present invention are that: according to the arc-shaped cantilever truss and stay cable bearing combined large-span corridor structure of the present invention, the facade arc-shaped cantilever truss and the corridor position orthogonal connecting truss are combined into a supporting truss core system having a large-span space at the bottom and long cantilevers on the two sides, and the lateral resistance and torsion resistance of the whole structure are enhanced by means of the cantilever part connecting truss.
A gas-steam combined cycle generator set operation adjustment and control system, and an adjustment and control method. The system comprises: a real-time set operation data acquisition module (1), which is used for acquiring power plant set operation parameter data and power generation power data; a set operation state assessment index mining module (2), which is used for performing mining analysis on the power plant set operation parameter data to obtain a key parameter; a set operation state assessment index extraction module (3), which is used for obtaining a characteristic variable; a set operation characteristic parameter prediction module (4), which is used for performing prediction on the characteristic variable to obtain a predicted value and a corresponding variation tendency; and a set operation smart adjustment and control module (5), which is used for realizing smart parameter adjustment and control. The optimized operation of a power plant set can be guided, thereby improving the reliability and economical performance of set operation.
G05B 13/04 - Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric involving the use of models or simulators
G05B 19/418 - Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
32.
Searchable encrypted data sharing method and system based on blockchain and homomorphic encryption
Insititute Of Information Engineering, CAS (China)
Zhejiang Ponshine Information Technology Co., Ltd. (China)
Inventor
Han, Song
Ren, Siqi
Bai, Haiqing
Niu, Ben
Chen, Xiaoli
Abstract
The present disclosure relates to a searchable encrypted data sharing method and system based on blockchain and homomorphic encryption, which protects security of sensitive data on the blockchain and realizes searchable and homomorphic calculation of data ciphertext. According to the present disclosure, a data owner encrypts the generated sensitive data and the keywords extracted according to the data with his own key, and then sends the encrypted transaction information to the cloud server. The cloud server verifies the identity of the data owner. If the verification succeeds, the uploaded ciphertext data is stored on a local server, and a ciphertext index, keyword ciphertext and related evidences of the data storage are uploaded to an alliance chain. The alliance chain node verifies the consistency of the uploaded transaction information, and if the verification succeeds, the transaction information is recorded.
H04L 29/06 - Communication control; Communication processing characterised by a protocol
H04L 9/00 - Arrangements for secret or secure communicationsNetwork security protocols
H04L 9/06 - Arrangements for secret or secure communicationsNetwork security protocols the encryption apparatus using shift registers or memories for blockwise coding, e.g. D.E.S. systems
H04L 9/30 - Public key, i.e. encryption algorithm being computationally infeasible to invert and users' encryption keys not requiring secrecy
33.
METHOD FOR DIAGNOSING MALFUNCTION IN AERO-ENGINE ON BASIS OF 5G EDGE COMPUTING AND DEEP LEARNING
The present invention relates to a method for diagnosing a malfunction in an aero-engine on the basis of 5G edge computing and deep learning. The method comprises the steps of: performing data collection, pre-processing, and storage on the basis of a 5G novel cloud edge network architecture; constructing a machine learning module in an edge cloud, historical data stored in an aero-engine malfunction database management system providing training samples for the machine learning module; and performing the smart self-management of an aero-engine gear malfunction simulation platform and the aero-engine malfunction database management system. The beneficial effects of the present invention comprise: the speed at which massive aero-engine operation data is stored and transmitted can be increased by using limited aero-engine malfunction data resources under a 5G emerging network architecture and by combining computing and storage resources, thus providing a reliable basis for identifying a malfunction in an aero-engine; in the present invention, the operation of a convolutional neural network is directly executed for an original one-dimensional vibration signal, the process being simple and not requiring abundant special signal processing experience, while identification performance is also ideal.
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
G06N 3/04 - Architecture, e.g. interconnection topology
A two-dimensional motor and a servo valve are provided. The two-dimensional motor includes a stator and a rotator arranged coaxially. The stator is enclosed in the rotor. The stator and the rotor are spaced along a radial direction of the rotor. A size of the stator along an axial direction is greater than a size of the rotor along the axial direction. The rotor is, without bearing support, directly connected to an external mechanism. The rotor is swung at a predetermined angle, such that the external mechanism can drive the rotor to move along an axial direction of the rotor relative to the stator.
F16K 31/04 - Operating meansReleasing devices electricOperating meansReleasing devices magnetic using a motor
H02K 11/21 - Devices for sensing speed or position, or actuated thereby
F16K 37/00 - Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
H02K 26/00 - Machines adapted to function as torque motors, i.e. to exert a torque when stalled
35.
Method for tracing MTPA curve of vehicle permanent magnet synchronous motor based on DC power
Disclosed is a method for searching a MTPA curve of a vehicle permanent magnet synchronous motor based on a DC power, which includes a current closed-loop adjuster, a current command generator, a current command angle generator, an active power calculator, an active power storage and comparison processor and a current given vector corrector. According to the present disclosure, the tedious manual calibration is relieved, the optimal angle is automatically searched, and the production efficiency is improved; according to the present disclosure, the step size can be arbitrarily set according to the calibration requirements, so as to achieve a higher calibration accuracy.
Disclosed is a control method for vector field weakening of a permanent magnet synchronous motor for a vehicle. The method comprises a current closed-loop adjustment module, a modulation ratio deviation calculation module, a current instruction angle compensation module, a current angle presetting module, a current instruction angle limiting comparator, and a current given vector correction module. In the present invention, the adjustment direction is always a weak magnetic direction, and instability caused by repeated adjustment will not occur; correcting while introducing a dq current may distribute stress against voltage saturation to the dq current, avoiding excessive output torque deviation due to excessive single-axis current adjustment; moreover, while ensuring the safety of a drive system, the effect of a field-weakening control link on the output torque of the drive system is decreased as much as possible.
Disclosed in the present invention is a vector control method for a vehicle permanent magnet synchronous electric motor based on direct current power. The method comprises a current closed-loop adjustment module, a modulation ratio deviation calculation module, a current instruction angle compensation module, a current angle preset module, a current instruction angle limit comparator, a current given amplitude compensation module and a current given vector correction module. By means of the present invention, an adjustment direction is always a flux weakening direction, such that instability caused by repeated adjustment does not occur; by means of the present method, simultaneous correction is performed by means of introducing a dq current, such that the pressure of preventing voltage saturation can be shared to the dq current, and the deviation of an output torque due to excessive adjustment of a uniaxial current is prevented from being too large; and by means of the present invention, the precision of the torque is ensured while ensuring a traditional flux weakening goal of stabilizing the control of the system.
Disclosed is a vector flux weakening control method for vector flux weakening for a vehicle permanent magnet synchronous motor, which includes a current closed-loop adjuster, a modulation ratio deviation calculator, a current command angle compensator, a current angle preset processor, a current command angle limiting comparator and a current given vector corrector. The adjusting direction of the present disclosure is always a flux weakening direction, and instability caused by repeated adjustment will not occur; by introducing dq current while performing correction, the pressure against voltage saturation can be shared to both d-axis and q-axis current, so as to avoid excessive output torque deviation caused by excessive adjustment of a single-axis current; the influence of the flux weakening control link on the output torque of the drive system can be minimized as much possible while ensuring the safety of the drive system.
Disclosed in the present invention is an MTPA curve search method for a vehicle permanent magnet synchronous motor performed on the basis of direct current power. The method comprises a current closed-loop adjustment module, a current command generation module, a current command angle generation module, an active power calculation module, an active power storage and comparison module, and a current given vector correction module. By means of the present invention, the tedious manual calibration is eliminated, and the optimal angle is automatically found, thereby improving the production efficiency; and by means of the present invention, a step length can be arbitrarily set according to calibration requirements, thereby achieving a higher calibration precision.
Discloses a vector control method for a vehicle permanent magnet synchronous motor based on a DC power, which comprises a current closed-loop adjuster, a modulation index deviation calculator, a current command angle compensator, a current angle preset, a current command angle limit comparator, a current given amplitude compensator and a current given vector corrector. According to the present disclosure, the adjusting direction is always a flux-weakening direction, and instability caused by repeated adjustment will not occur; according to the present disclosure, by introducing the current for simultaneous correction, the voltage saturation-resistant pressure can be shared to the dq current, so that excessive output torque deviation caused by excessive adjustment of a single-axis current can be avoided; the traditional flux weakening target that the system is controlled without losing stability is ensured, and the accuracy of the torque is ensured.
An electro-hydraulic proportional valve includes: a valve core; a valve sleeve, sleeving an outside of the valve core; a valve body, sleeving an outside of the valve sleeve and fixedly connected to the valve sleeve; a left end cap, covering an end of the valve body, a left sensitive cavity being defined by the left end cap, the valve body, and the valve sleeve; a right end cap, covering the other end of the valve body, a right sensitive cavity being defined by the right end cap, the valve body, and the valve sleeve; a driving mechanism disposed out of the valve body; and a transmission mechanism connected to the driving mechanism and the valve core.
F16K 31/42 - Operating meansReleasing devices actuated by fluid by means of electrically-actuated members in the supply or discharge conduits of the fluid motor
F16K 11/07 - Multiple-way valves, e.g. mixing valvesPipe fittings incorporating such valvesArrangement of valves and flow lines specially adapted for mixing fluid with all movable sealing faces moving as one unit comprising only sliding valves with linearly sliding closure members with cylindrical slides
F16K 47/00 - Means in valves for absorbing fluid energy
42.
METHOD FOR OBTAINING OVERALL LOGGING DATA BASED ON AUTOMATED REASONING MODEL
A method for obtaining overall logging data based on an automated reasoning model is provided. The method achieves a reservoir evaluation for a reservoir matrix within a multi-depth range by generating high-quality point location prediction data. The method includes: acquiring imaging logging data and lab observing data of a stratum; inputting the imaging logging data and the lab observing data, to form dimensionless data and performing data normalization on the data; denoising known continuous data; marking a to-be-supplemented data point location; performing data supplementing for a point location in a predetermined order; and restoring a data dimension to obtain the overall logging data by supplementing. By automatically supplementing the lab observing data in analysis logging data, high-quality prediction data is obtained, which provides a basis for subsequent evaluation and analysis of the stratum, and contributes to exploration and development of resources such as oil, gas, and coal.
Disclosed is a positioning grouting anchor rod suitable for preventing and controlling an engineering seepage damage and a construction method thereof. The positioning anchor rod comprises an anchor rod, a grouting guide pipe and a grouting pipe. When the seepage failure occurs in the project, a water pump can be connected with a drain pipe interface to realize water drainage, and at the same time, a positioner can be used for positioning grouting in the seepage failure area to improve the accuracy of grouting reinforcement. A drainage channel and a grouting channel involved in the present application are independent of each other and do not interfere with each other, and the drainage and grouting functions are combined on the basis of retaining the original supporting function of the anchor rod.
Disclosed are a method and system for evaluating university teaching building plan learning space connection cohesion. The method comprises the following steps: acquiring and simplifying a technical drawing of a university teaching building plan, performing convex space division, performing spatial region classification encoding, establishing connections between spatial regions, and generating a learning space topological network model; evaluating connection tightness features, control features, and robustness features of a learning space traffic network and an overall network system. The present invention establishes a flow-centered accurate method based on data and evidence for evaluating teaching building plan space connection cohesion, and achieves a breakthrough from a form-centered perceptual analysis method based on inspiration and experience.
G06F 30/13 - Architectural design, e.g. computer-aided architectural design [CAAD] related to design of buildings, bridges, landscapes, production plants or roads
G06Q 10/06 - Resources, workflows, human or project managementEnterprise or organisation planningEnterprise or organisation modelling
45.
GROUT INJECTION POSITIONING ANCHOR ROD SUITABLE FOR USE IN SEEPAGE FAILURE PREVENTION IN ENGINEERING PROJECT, AND CONSTRUCTION METHOD THEREFOR
Disclosed is a grout injection positioning anchor rod suitable for use in seepage failure prevention in an engineering project, the grout injection positioning anchor rod comprising an anchor rod (1), a grout injection guide pipe (2) and a grout injection pipe (3); when there is a seepage failure in an engineering project, a water pump can be connected to a drainage pipe connector to achieve water drainage, while also utilizing a limiter to conduct grout injection positioning on a seepage failure area, such that grout injection reinforcement accuracy is improved; a drainage channel and a grout injection channel are independent from one another and do not interfere with one another, and the original support function of the anchor rod is maintained while drainage and grout injection functions are integrated. Thus, the purpose of efficiently preventing and addressing seepage failure in engineering projects is achieved, and construction costs and construction time are saved. Also disclosed is a construction method using the grout injection positioning anchor rod.
Provided is a drainage grouting pipe and a method of use thereof. The drainage grouting pipe comprises a perforated steel pipe, a plurality of elastic anti-filtration geotextiles, a movable stopper, and a grouting pipe. The perforated steel pipe consists of a front conical tip, a middle grouting section, a rear hole-free section, and a steel pipe seal. The middle grouting section is provided with a plurality of grouting holes. The surface of the middle grouting section of the perforated steel pipe is seamlessly, and circumferentially wrapped by the plurality of elastic anti-filtration geotextiles, and gaps are formed between adjacent elastic anti-filtration geotextiles. Firstly, the geotechnical layer is drained by a pumping system, and then the grouting position in the geotechnical layer is located and controlled by pulling out the grouting pipe to control the plunging depth of the movable stopper, thus achieving the prevention and treatment of groundwater seepage damage.
A device and method for mud solidification based on electro-osmosis well points cooperating with well-points dewatering. The method includes the following steps: 1) preparation; 2) construction of well point pipe positioning frame beams; 3) assembly of a mobile trestle platform; 4) well point pipe arrangement; 5) well point/electro-osmosis dewatering; 6) filtrate treatment; 7) well point pipe dismantling; and 8) excavation and transportation of solidified drilling slag for utilization. According to the disclosure, well point pipes are adopted and used as an anode and a cathode of an electro-osmosis well, and on-site quick solidification of pile foundation mud is implemented through the electro-osmosis combined with light well-points dewatering; by the adoption of the well point pipe positioning frame beams, the problems that drilling slag in a sedimentation tank has a large water content and it is difficult to arrange and fix the well point pipes are well solved.
A portable pneumatic loading system for simulating the operation of a subway train is provided, comprising a control cabinet, an powered air station and an air cylinder, wherein a proportional directional valve is disposed between the control cabinet and the powered air station, a control cabinet is connected to the powered air station through an air inlet pipe, and the powered air station is connected to the air cylinder through a hose; a PLC, a switching power supply and a guide rail are arranged in the control cabinet, with the PLC and the switching power supply being connected through signal lines to a wiring terminal fixed on the guide rail; a frequency regulating knob, an emergency stop switch, a main start button, a power start button and a power indicator are embedded in five through holes formed on a door of the control cabinet, respectively; a signal line led out from the top of the control cabinet is connected to the proportional directional valve; and, the air cylinder is connected to the proportional directional valve through a hose. The present invention has the following advantages: the system is light, flexible and portable, and can enter subway tunnels under various working conditions; and, the design is novel and reasonable, the operation is simple, the actual engineering operation is highly feasible, and the on-site adjustment process is more visible.
Provided in the present invention are a flexible electrochemical electrode, a subcutaneous continuous glucose monitoring sensor equipped with the electrochemical electrode, and a preparation method thereof. The electrode directly uses gold layers on both sides of a chemically plated film, respectively as a working electrode and a reference-counter electrode, so as to form an electrochemical two-electrode system. Petaloid platinum nanoparticles are electrodeposited on a surface of the configured working electrode as a catalytic layer; a carbon nanotube/Nafion mesh layer functions as an anti-interference layer, and is formed thereon with an enzyme biochemical sensitive layer by means of electrostatic adsorption, after crosslinking and curing in glutaraldehyde, polyurethane mass transfer is coated to limit a protection layer, so as to prepare a flexible continuous glucose monitoring sensor. The sensor does not require photolithography, screen printing or other technologies to construct an electrochemical electrode system. The present invention effectively simplifies the processing technology, can easily achieve large-scale production and reduce production costs; and meanwhile, the present invention has characteristics such as a wide linear range, low detection limit, powerful anti-interference capacity, high response sensitivity and long-term stability.
A61B 5/1473 - Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value using chemical or electrochemical methods, e.g. by polarographic means invasive, e.g. introduced into the body by a catheter
C23C 18/16 - Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coatingContact plating by reduction or substitution, i.e. electroless plating
C23C 18/20 - Pretreatment of the material to be coated of organic surfaces, e.g. resins
C23C 18/44 - Coating with noble metals using reducing agents
A61B 5/145 - Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value
A61B 5/1486 - Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value using chemical or electrochemical methods, e.g. by polarographic means using enzyme electrodes, e.g. with immobilised oxidase
C23C 28/02 - Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of main groups , or by combinations of methods provided for in subclasses and only coatings of metallic material
C25D 3/50 - ElectroplatingBaths therefor from solutions of platinum group metals
A61B 5/1495 - Calibrating or testing in vivo probes
A61B 5/00 - Measuring for diagnostic purposes Identification of persons
B05D 5/12 - Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain a coating with specific electrical properties
50.
ELECTROCHEMICAL ELECTRODE, CONTINUOUS GLUCOSE MONITORING SENSOR AND PREPARATION METHOD THEREFOR
Provided in the present invention are a flexible electrochemical electrode, a subcutaneous continuous glucose monitoring sensor equipped with the electrochemical electrode, and a preparation method therefor. The electrode directly uses gold layers (2, 20) on both sides of a chemically plated film, respectively as a working electrode (A) and a reference-counter electrode (B), so as to form an electrochemical two-electrode system. Petaloid platinum nanoparticles are electrodeposited on a surface of the configured working electrode (A) as a catalytic layer (3); a carbon nanotube/Nafion mesh layer (4) functions as an interference layer, and is formed thereon with an enzyme biochemical sensitive layer (5) by means of electrostatic adsorption, after crosslinking and curing in glutaraldehyde, polyurethane mass transfer is coated to limit a protection layer (6), so as to prepare a flexible continuous glucose monitoring sensor. The sensor does not require photolithography, screen printing or other technologies to construct an electrochemical electrode system. The present invention effectively simplifies the processing technology, can easily achieve large-scale production and reduce production costs; and meanwhile, the present invention has characteristics such as a wide linear range, low detection limit, powerful anti-interference capacity, high response sensitivity and long-term stability.
A61B 5/1486 - Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value using chemical or electrochemical methods, e.g. by polarographic means using enzyme electrodes, e.g. with immobilised oxidase
A61B 5/1473 - Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value using chemical or electrochemical methods, e.g. by polarographic means invasive, e.g. introduced into the body by a catheter
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