OVAL-SCANNING AIRBORNE LIGHT DETECTION AND RANGING (LIDAR) BATHYMETRY SYSTEM WITH CONTROLLABLE SCANNING DIRECTION AND POSITIONING METHOD USING THE SAME
An oval-scanning airborne light detection and ranging (LiDAR) bathymetry system with a controllable scanning direction includes a position and orientation system, an airborne bathymetric LiDAR unit and a rotatable mounting frame. The rotatable mounting frame includes a connection mechanism, a hollow load-bearing rotary platform and a bolt assembly. Through setting a rotation angle of a stepping motor of the hollow load-bearing rotary platform, the airborne bathymetric LiDAR unit is driven to rotate, so that long and short axes of a scanning trajectory can be flexibly adjusted according to actual needs. A positioning method based on the oval-scanning airborne LiDAR bathymetry system is also provided to calculate a spatial position of a target laser point.
A method and device for remote sensing image classification using quantum pixel matrix entanglement is provided. The method comprises: preprocessing an acquired raw remote sensing image to obtain image data containing multiband fusion; and calculating a pixel matrix entanglement coefficient μ and a Euclidean distance d between a cluster center and other pixel matrices based on a preprocessed remote sensing image, performing an iterative self-organizing classification on remote sensing image data based on the pixel matrix entanglement coefficient and a Euclidean distance threshold, and obtaining remote sensing image classification results.
G06V 10/764 - Dispositions pour la reconnaissance ou la compréhension d’images ou de vidéos utilisant la reconnaissance de formes ou l’apprentissage automatique utilisant la classification, p. ex. des objets vidéo
G06N 10/20 - Modèles d’informatique quantique, p. ex. circuits quantiques ou ordinateurs quantiques universels
G06V 10/74 - Appariement de motifs d’image ou de vidéoMesures de proximité dans les espaces de caractéristiques
Provided is an artificial reef, including a bottom plate, a reef main body of a hollow structure and connected to the bottom plate, and a pipe rack arranged in the reef main body. Two ends of the reef main body are open. All sides of the reef main body are obliquely arranged from bottom to top towards an inner side. The pipe rack is formed by assembling multiple pipe bodies into a grid shape. The pipe bodies are in communication with each other at intersections. Both ends of each pipe body extend through and are fixed to two sides of the reef main body respectively to communicate with the outside. The bottom plate and the reef main body are made of a reinforced concrete structure, and the reinforced concrete structure is made of high corrosion-resistant steel bars and modified seawater and sea sand concrete.
The present disclosure discloses a self-adaptive trigger acquisition method of an airborne bathymetric survey laser radar, including calculating a distance between laser light and a water surface and a height between the laser radar and the water surface, and obtaining delay time before sampling; converting water surface and water bottom echo numerical values into corresponding voltage amplitude values, then calculating corresponding electric signals, and calculating light energy by a photoelectric conversion relation; determining a water body attenuation coefficient by water surface and water bottom light energy losses; and determining a maximum water depth by the solved water body attenuation coefficient, then solving sampling time, and finally realizing self-adaptive trigger acquisition. The present disclosure mainly solves the technical problem that the conventional acquisition method cannot realize self-adaptive acquisition of water bottom topographic data in different water areas on laser radar devices with different scanning angles.
G01S 7/4913 - Circuits de détection, d'échantillonnage, d'intégration ou de lecture des circuits
G01S 7/48 - Détails des systèmes correspondant aux groupes , , de systèmes selon le groupe
G01S 7/481 - Caractéristiques de structure, p. ex. agencements d'éléments optiques
G01S 17/32 - Systèmes déterminant les données relatives à la position d'une cible pour mesurer la distance uniquement utilisant la transmission d'ondes continues, soit modulées en amplitude, en fréquence ou en phase, soit non modulées
G01S 17/88 - Systèmes lidar, spécialement adaptés pour des applications spécifiques
A double-air-duct laser radar heat dissipation structure includes a radar box body, a first and a second heat dissipation portion. The first heat dissipation portion for heat dissipation of a high-speed acquisition module comprises two air duct structures and an air duct switching mechanism. When an unmanned aerial vehicle works, a first air duct improves heat dissipation of a radar system through an air flow generated by the unmanned aerial vehicle; after landing, the air duct switching mechanism disconnects the first air duct and connects a second air duct to a heat dissipation system to meet heat dissipation of a laser radar in a data processing stage. The second heat dissipation portion completes heat dissipation of a laser device through TEC refrigeration and a heat sink. The present disclosure reduces energy consumption and makes the radar adapt to various working conditions while improving the heat dissipation.
The present disclosure provides a method for remote sensing blue-green wave band ratio logarithmic water depth retrieval of wavelet spline instantaneous tidal height correction, and belongs to the field of remote sensing water depth retrieval. Aiming at water depth retrieval precision reduced by blue-green light and a tidal height in a remote sensing water depth retrieval process, the model fully considers a linear correlation between an attenuation ratio of the blue-green light in water and a depth, the smoothness of the tidal height, and the characteristics of consistent convergence, first-order continuous derivation and second-order continuous derivation of the tidal height with time change, and constructs the method for remote sensing blue-green wave band ratio logarithmic water depth retrieval of wavelet spline instantaneous tidal height correction, and according to Molokai experiment verification, compared with an early model, the invention improves the remote sensing water depth retrieval precision.
Disclosed is a measurement method for characterizing ferrite grain size and phase fraction of duplex stainless steel, including the steps of: conducting heat treatment on industrial pure iron and duplex stainless steel respectively; conducting wire cutting on the samples to obtain the samples to be tested; measuring ferrite grain diameters and phase fractions of the samples to be tested; testing the samples to be tested based on an improved U-shaped sensor probe to obtain test data; constructing a response relational database; obtaining the information of the sample of arbitrary ferrite grain size and phase fraction. The present invention adopts an innovative electromagnetic characterization method to measure single microcomponents in the steel and iron materials, which can be applied to the measurement of smaller samples and improve the measurement efficiency.
The present disclosure relates to a stray light suppression device for bathymetric LiDAR onboard unmanned shipborne, belonging to the technical field of LiDAR water depth detection, particularly to a stray light suppression device for bathymetric LiDAR onboard unmanned shipborne. The device comprises an optical system component, a first objective lens barrel, a second objective lens barrel, a spectroscope barrel, a first eyepiece barrel a, a first eyepiece barrel b, a second eyepiece barrel a, a second eyepiece barrel b, a PMT detector a, a PMT detector b and a spectroscope supporting structure. Stray light suppression of an optical system with minimal field-of-view is realized, and stray light propagated by first-order, second-order and third-order scattered light paths is suppressed, so that a water depth detection capability of the bathymetric LiDAR onboard unmanned shipborne is improved and a dynamic detection range is expanded.
The present invention discloses a POS high-accuracy positioning method under occlusion, comprising: integrating single-point positioning data and differential correction data for solution to acquire high-accuracy position information; implementing a buffer through an RAM of an FPGA to cache the collected position information and a sampling time; when a satellite signal loss is detected by a system, fetching five pieces of position information from the RAM at a time before the signal is lost and five pieces of position information at a time after the signal is reappeared, and filtering the information to obtain filtered data; constructing an equation by using the filtered data, and estimating a signal lost position. By triggering an occlusion algorithm through the FPGA, the present invention improves an ability of a POS system to work in areas with weak satellite signals and meanwhile reduces an operation time, thereby meeting practical needs.
G01S 19/37 - Détails de matériel ou de logiciel de la chaîne de traitement des signaux
G01S 19/25 - Acquisition ou poursuite des signaux émis par le système faisant intervenir des données d'assistance reçues en provenance d'un élément coopérant, p. ex. un GPS assisté
The present disclosure relates to a lightweight and small bathymetry LiDAR multi-channel high sampling rate high-precision real-time synchronous acquisition and storage system, which adopts an ADC+FPGA+ZYNQ architecture to implement four-channel high-rate real-time synchronous parallel sampling, has synchronization error less than 300 ps, sampling rate s as high as 2 GSPS, and sampling precision as high as 14 bits, and comprises an FPGA system acquisition carrier board unit for implementing laser radar echo data acquisition and storage, PMT controlling, data maximum value feedback, peripheral interface design and storage control; a storage daughter board unit for implementing storage of echo data and export of 100 Mbps Ethernet, and an upper computer data conversion software for implementing conversion of original echo data files into decimal or hexadecimal csv files. The system has multi-channel parallel acquisition, high sampling rate and precision, strong real-time performance and functional applicability, and light weight and portability for bathymetry LiDAR.
Disclosed in the present invention is a high-precision anti-shielding positioning method for a POS. The method comprises: step 1, performing calculation by combining single-point positioning data and differential correction data to acquire high-precision position information; step 2, implementing a buffer area by means of a RAM of an FPGA, and caching collected position information and a sampling moment; step 3, if a system detects that a satellite signal is lost, extracting from the RAM five pieces of position information before a signal loss moment and five pieces of position information after a signal appears again, and performing filtering processing to obtain filtered data; and step 4, using the filtered data to construct an equation, and predicting the position at which the signal is lost. By triggering an anti-shielding algorithm by means of an FPGA, the present invention improves the capability of a POS working in a weak satellite signal region, also shortens the operation time, and meets actual requirements.
G01S 19/37 - Détails de matériel ou de logiciel de la chaîne de traitement des signaux
G01S 19/41 - Correction différentielle, p. ex. DGPS [GPS différentiel]
G01S 19/43 - Détermination de position utilisant les mesures de la phase de la porteuse, p. ex. le positionnement cinématiqueDétermination de position utilisant l'interférométrie à ligne de base longue ou courte
G01S 19/49 - Détermination de position en combinant ou en commutant entre les solutions de position dérivées du système de positionnement par satellite à radiophares et les solutions de position dérivées d'un autre système l'autre système étant un système de position inertielle, p. ex. en hybridation lâche
G01S 19/54 - Détermination d'attitude utilisant les mesures de la phase de la porteuseDétermination d'attitude utilisant l'interférométrie à la ligne de base longue ou courte
G01C 21/16 - NavigationInstruments de navigation non prévus dans les groupes en utilisant des mesures de la vitesse ou de l'accélération exécutées à bord de l'objet navigantNavigation à l'estime en intégrant l'accélération ou la vitesse, c.-à-d. navigation par inertie
12.
Pointeff method for urban object classification with LiDAR point cloud data
The present disclosure relates to a PointEFF method for urban object classification with LiDAR point cloud data, and belongs to the field of LiDAR point cloud classification. The method comprises: point cloud data segmentation; End-to-end feature extraction layer construction; External feature fusion layer construction; and precision evaluation. The PointEFF method for urban object classification with LiDAR point cloud data fuses point cloud hand-crafted descriptors with End-to-end features obtained from a network at an up-sampling stage of a model by constructing an External Feature Fusion module, which improves a problem of local point cloud information loss caused by interpolation operation in the up-sampling process of domain feature pooling methods represented by PointNet and PointNet++, greatly improves classification precision of the model in complex ground features, especially in rough surface ground features, and is capable of being better applied to the classification of urban ground features with complex ground feature types.
G06V 10/764 - Dispositions pour la reconnaissance ou la compréhension d’images ou de vidéos utilisant la reconnaissance de formes ou l’apprentissage automatique utilisant la classification, p. ex. des objets vidéo
G06V 10/77 - Traitement des caractéristiques d’images ou de vidéos dans les espaces de caractéristiquesDispositions pour la reconnaissance ou la compréhension d’images ou de vidéos utilisant la reconnaissance de formes ou l’apprentissage automatique utilisant l’intégration et la réduction de données, p. ex. analyse en composantes principales [PCA] ou analyse en composantes indépendantes [ ICA] ou cartes auto-organisatrices [SOM]Séparation aveugle de source
G06V 10/80 - Fusion, c.-à-d. combinaison des données de diverses sources au niveau du capteur, du prétraitement, de l’extraction des caractéristiques ou de la classification
G06V 10/94 - Architectures logicielles ou matérielles spécialement adaptées à la compréhension d’images ou de vidéos
13.
STRAY LIGHT SUPPRESSION DEVICE FOR UNMANNED SHIP-BORNE WATER DEPTH MEASUREMENT LIDAR
A stray light suppression device for an unmanned ship-borne water depth measurement LiDAR, belonging to the technical field of LiDAR water depth measurement. The device comprises a first objective lens barrel (1), a second objective lens barrel (2), a spectroscope barrel (3), a first eyepiece barrel a (4), a first eyepiece barrel b (5), a second eyepiece barrel a (6), a second eyepiece barrel b (7), a PMT detector a (8), a PMT detector b (9) and a spectroscope supporting structure (10). The device achieves stray light suppression of an optical system having an extremely small field angle and effectively suppresses the stray light propagated by first-order, second-order and third-order scattered light paths, thereby improving the water depth measurement capability and expanding the dynamic measurement range of an unmanned ship-borne water depth measurement LiDAR.
The present invention belongs to the technical field of material chemistry, and particularly relates to a method for preparing nano zinc oxide from secondary zinc oxide. The method comprises: firstly, selectively leaching alkali-insoluble impurities such as Fe 2+, Fe 3+, Ca 2+, Mg 2+, Mn 2+and Cu 2+from secondary zinc oxide with a sodium hydroxide solution; then, adding a sulfuric acid solution to remove Pb 2+, Al 3+and Si 4+; and finally, using a sodium carbonate solution to make Zn 2+ form a zinc carbonate basic precursor, and calcining the precursor to obtain high-purity nano zinc oxide. The method is cheap, efficient, and simple.
A drilling device for geotechnical engineering investigation is provided, including an outer supporting ring seat, where a center of the outer supporting ring seat is rotatably connected with a middle supporting ring seat through a first supporting shaft rod; a center of the middle supporting ring seat is rotatably connected with an inner supporting ring seat through a second supporting shaft rod; the first supporting shaft rod and the second supporting shaft rod are vertically crossed; a second rotating motor is fixedly installed at one end of the first supporting shaft rod on an outer surface of the outer supporting ring seat; a pow output end of the second rotating motor is fixedly connected with the first supporting shaft rod, an other end of the first supporting shaft rod is provided with a first locking mechanism for position limitation.
A device and method for geo-electric extraction under water layer coverage are provided. The device includes auxiliary tubes, outer casings, main tubes, mud extractors, encapsulated extraction electrodes and a fixing ferrule assembly, where the auxiliary tubes each have one end open and the other end closed; the outer casings each have one end open and the other end detachably connected to a top cover; an inner diameter of each of the outer casings is larger than an outer diameter of each of the auxiliary tubes; an outer diameter of each of the main tubes is smaller than the inner diameter of each of the outer casings; the mud extractors each include an inner rod, an outer rod and a bottom plate; the outer rod is sleeved outside the inner rod; the inner rod has one end provided with a dredging wheel and the other end provided with a handle.
G01V 3/08 - Prospection ou détection électrique ou magnétiqueMesure des caractéristiques du champ magnétique de la terre, p. ex. de la déclinaison ou de la déviation fonctionnant au moyen de champs magnétiques ou électriques produits ou modifiés par les objets ou les structures géologiques, ou par les dispositifs de détection
17.
CORROSION-RESISTANT COATING OF REINFORCING STELL FOR MARINE CONCRETE AND PREPARATION METHOD THEREFOR
A preparation method for a corrosion-resistant coating of a reinforcing steel for marine concrete, comprising the steps: (1) pretreating the surface of a reinforcing steel; (2) preparing self-repairing corrosion microcapsules; (3) preparing a cathodic electrophoresis coating; (4) carrying out cathodic electrophoresis; and (5) curing. The electrophoresis coating of the present invention contains the self-repairing corrosion microcapsules, metal powder, and graphene oxide powder. The corrosion resistance of the coating is improved under the co-action of the self-repairing properties of the self-repairing microcapsules and cathodic protection. The corrosion-resistant coating has excellent adhesion and corrosion resistance, prolonging the service life of reinforcing steel. It is widely used for the protection of reinforcing steels for marine concrete, and also for the protection of metal structures in general environment.
C09D 5/44 - Compositions de revêtement, p. ex. peintures, vernis ou vernis-laques, caractérisées par leur nature physique ou par les effets produitsApprêts en pâte pour des applications électrophorétiques
The invention discloses a corrosion resistant coating for marine engineering concrete and a preparation method thereof, the corrosion resistant coating being sprayed or brushed on the concrete surface after being uniformly mixed by component A and component B,wherein the component A is calculated by weight including: waterborne non-ionic epoxy resin, C10-C12 alkyl glycidyl ether, polyhedral oligomeric silsesquioxane, metal powder, magnesium aluminum hydrotalcite powder,dispersant,defoamer; and the component B is calculated by weight including: modified aromatic amine curing agent, C10-C12 alkyl glycidyl ether, self-healing micro capsules, leveling agent, antioxidant, adhesion promoter, and other additives. The corrosion resistant coating of the present invention has excellent adhesion and corrosion resistance, while being able to achieve self-healing of the corrosion-resistant coating and prevent the migration of chloride ions, thereby prolonging the service life of the concrete structure, so that it can be widely used for the protection of marine engineering concrete structures.
Disclosed is a drilling apparatus for geotechnical engineering investigation, comprising an outer supporting ring seat (1). The center of the outer supporting ring seat is rotatably connected to a middle supporting ring seat (2) by means of a provided first supporting shaft rod (4), the center of the middle supporting ring seat is rotatably connected to an inner supporting ring seat (3) by means of a provided second supporting shaft rod (5), and the first supporting shaft rod and the second supporting shaft rod are arranged to intersect perpendicularly. A second rotating motor (7) is fixedly mounted at one end of the outer side face of the outer supporting ring seat on the first supporting shaft rod. A power output end of the second rotating motor is fixedly connected with the first supporting shaft rod, and a locking mechanism used to limit a position is provided at the other end of the first supporting shaft rod. The drilling apparatus may achieve multi-angle position limitation of a drill rod, and may also limit the drill rod at a specified drilling position. It is suitable for various drilling situations, has a wide application range, and is convenient for popularization.
E21B 15/04 - Supports pour la machine de forage, p. ex. tours de forage ou mâts de forage spécialement adaptés au forage dirigé, p. ex. appareils pour trous inclinés
E21B 17/00 - Tiges ou tubes de forageTrains de tiges souplesTiges d'entraînementMasses-tigesTiges de pompageTubagesColonnes de production
20.
N/O CO-DOPED MOLYBDENUM SULFIDE@POROUS CARBON COMPOSITE ELECTRODE MATERIAL AND PREPARATION METHOD THEREFOR, NEGATIVE ELECTRODE MATERIAL AND PREPARATION METHOD THEREFOR, AND USE THEREOF
The present invention relates to the technical field of electrode materials for supercapacitors, in particular to an N/O co-doped molybdenum sulfide@porous carbon composite electrode material, and a preparation method therefor and the use thereof. In the present invention, co-doping with nitrogen and oxygen atoms and compounding with molybdenum sulfide are used; the nitrogen atoms provide more electron active sites to improve the electron transport speed of porous carbon; the oxygen atoms are oxidized/reduced to improve the pseudo-capacity of an electrode; the porous carbon provides a cross-linked porous structure with a large specific surface area; molybdenum disulfide is attached to the porous carbon to improve the synergistic effect of the porous carbon and molybdenum disulfide so as to further improve the electric conductivity; and the porous carbon and heteroatoms are subjected to doping modification and compounded with a transition metal sulfide, such that the advantages of an efficient cycling stability and a high power density of the porous carbon itself are brought into play. In addition, the material prepared in the present invention is environmentally friendly and is simple and easy to obtain, and the operation is simple and effective.
3+. The ten rare-earth cations have a molar ratio of 1:1:1:1:1:1:1:1:1:1 and equal share of RE position. According to the application, by adopting solid state reaction, the fergusonite structure high-entropy oxide ceramic with single-phase structure, uniform element distribution and stable phase is obtained. The high-entropy oxide ceramic prepared by the application is simple in process, uniform in chemical composition and microstructure, and convenient to realize on-demand regulation on properties through a combination of different elements.
C04B 35/50 - Produits céramiques mis en forme, caractérisés par leur compositionCompositions céramiquesTraitement de poudres de composés inorganiques préalablement à la fabrication de produits céramiques à base de composés de terres rares
C04B 35/505 - Produits céramiques mis en forme, caractérisés par leur compositionCompositions céramiquesTraitement de poudres de composés inorganiques préalablement à la fabrication de produits céramiques à base de composés de terres rares à base d'oxyde d'yttrium
C04B 35/495 - Produits céramiques mis en forme, caractérisés par leur compositionCompositions céramiquesTraitement de poudres de composés inorganiques préalablement à la fabrication de produits céramiques à base d'oxydes à base d'oxydes de vanadium, de niobium, de tantale, de molybdène ou de tungstène ou de leurs solutions solides avec d'autres oxydes, p. ex. vanadates, niobates, tantalates, molybdates ou tungstates
C04B 35/626 - Préparation ou traitement des poudres individuellement ou par fournées
China Construction Fifth Engineering Division Corp., Ltd. (Chine)
Guilin University of Technology (Chine)
Inventeur(s)
Yu, Guangming
Zhang, Penghui
Lei, Jun
Peng, Bin
Kuang, Lijun
Luo, Weiting
Yang, Zihan
Yao, Xinpeng
Tan, Zhiwen
Yue, Qiang
Du, Jiaming
Chen, Ze
Liu, Hao
Zhang, Li
Zhang, Shuguang
Abrégé
A test method based on a test system for five-dimensional space effects of ground surface settlement caused by dual-mode shield construction is provided. First, manufacturing a formation similarity material model; then, laying ground surface monitoring points in longitudinal and transverse direction; installing a shield machine model, and performing shield construction, the shield machine model adopts a double-shield body mode; performing five-dimensional monitoring during shield construction; designing an observation method for ground surface settlement data in step length and time dimension, and acquiring five-dimensional data in combination with three-dimensional scanning; and finally, performing deformation information processing according to the monitored data, so as to realize an acquisition of the five-dimensional data.
A method for preparing organic-inorganic hybrid nanoflower by electrodeposition is provided, which relates to the technical field of enzyme immobilization. An aqueous solution of a rare earth nitrate is mixed with a biological enzyme and a nitrate to obtain a mixed solution; the rare earth ions in the rare earth nitrate are one or more selected from La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Yb and Y ions; the biological enzyme is α-amylase, horseradish peroxidase or laccase; then, the mixed solution is electrodeposited with a three-electrode system consisting of a working electrode, a counter electrode and a reference electrode to obtain an electrodeposited film on the surface of the working electrode; thereafter, the electrodeposited film is washed and dried successively to obtain organic-inorganic hybrid nanoflower.
An encapsulated geoelectric extraction electrode and a use method thereof, relating to the technical field of geoelectric extraction. The encapsulated geoelectric extraction electrode comprises: a liquid storage container (20); a conventional electrode (40); a connector (30), the connector (30) being arranged between the liquid storage container (20) and the conventional electrode (40) and being used for connecting the liquid storage container (20) and the conventional electrode (40); a casing (10), the casing (10) comprising an upper casing (12) and a lower casing (11), the upper casing (12) being a semi-closed structure and sleeved on the outside of the liquid storage container (20) and the connector (30), the lower casing (11) comprising a support disc (112) and a plurality of connecting posts arranged along the circumference of the support disc (112), the connecting posts each having one end fixedly connected to the open end of the upper casing (12) and the other end connected to the support disc (112), an accommodating cavity being formed between the plurality of connecting posts and the support disc, and the conventional electrode (40) being disposed in the accommodating cavity; and a dropper (50) provided between the liquid storage container (20) and the conventional electrode (40). The encapsulated extraction electrode is greatly improved in terms of portability, operability, and safety, and integrates the encapsulated extraction electrode, extraction solution, and conventional electrode (40) together, thereby facilitating carrying and reducing field operation time and workload.
G01V 3/08 - Prospection ou détection électrique ou magnétiqueMesure des caractéristiques du champ magnétique de la terre, p. ex. de la déclinaison ou de la déviation fonctionnant au moyen de champs magnétiques ou électriques produits ou modifiés par les objets ou les structures géologiques, ou par les dispositifs de détection
25.
GEOELECTRIC EXTRACTION APPARATUS AND METHOD UNDER WATER COVERAGE
A geoelectric extraction apparatus and method under water coverage, relating to the technical field of mineral exploration. The apparatus comprises an auxiliary pipe (1), an outer sleeve (2), a main pipe (3), a mud lifting device (4), a packaged extraction electrode (5), and a fixed ferrule (6); one end of the auxiliary pipe (1) is open, and the other end of the auxiliary pipe (1) is closed; one end of the outer sleeve (2) is an opening, and the other end of the outer sleeve (2) is detachably connected to a top cover (22); the inner diameter of the outer sleeve (2) is greater than the outer diameter of the auxiliary pipe (1); the outer diameter of the main pipe (3) is smaller than the inner diameter of the outer sleeve (2); the mud lifting device (4) comprises an inner rod (44), an outer rod (43), and a bottom plate (42), and the outer rod (43) is sleeved on the outer side of the inner rod (44); a mud collecting wheel (41) is provided at one end of the inner rod (44), and a handle (45) is provided at the other end of the inner rod (44); the packaged extraction electrode (5) comprises a housing (58), and the housing (58) is internally provided with a solution storage bottle (51) for storing an extracting solution and a conventional electrode (52); and the fixed ferrule (6) comprises a power supply box (64) and two loops (61). The waterproof effect is guaranteed by means of three measures such as the auxiliary pipe (1), the outer sleeve (2), and enlargement of an excavation depth; and the portability, operability, safety, etc. of the apparatus are improved by means of the packaged extraction electrode (5).
G01V 3/08 - Prospection ou détection électrique ou magnétiqueMesure des caractéristiques du champ magnétique de la terre, p. ex. de la déclinaison ou de la déviation fonctionnant au moyen de champs magnétiques ou électriques produits ou modifiés par les objets ou les structures géologiques, ou par les dispositifs de détection
26.
METHOD FOR IMPROVING RELIABILITY OF TRENCH GATE GAN MIS FET DEVICE
NINGBO HAITECHUANG ELECTRONIC CONTROL CO., LTD (Chine)
GUILIN UNIVERSITY OF TECHNOLOGY (Chine)
Inventeur(s)
Weng, Jiafu
Zhou, Bing
Abrégé
x1-xx1-x1-x channel layer to solve the problem of threshold voltage drifting caused by hole induction. The stability of the device is improved, and the industrial application of the device is facilitated.
H01L 29/778 - Transistors à effet de champ avec un canal à gaz de porteurs de charge à deux dimensions, p.ex. transistors à effet de champ à haute mobilité électronique HEMT
H01L 29/06 - Corps semi-conducteurs caractérisés par les formes, les dimensions relatives, ou les dispositions des régions semi-conductrices
H01L 29/10 - Corps semi-conducteurs caractérisés par les formes, les dimensions relatives, ou les dispositions des régions semi-conductrices avec des régions semi-conductrices connectées à une électrode ne transportant pas le courant à redresser, amplifier ou commuter, cette électrode faisant partie d'un dispositif à semi-conducteur qui comporte trois électrodes ou plus
H01L 29/423 - Electrodes caractérisées par leur forme, leurs dimensions relatives ou leur disposition relative ne transportant pas le courant à redresser, à amplifier ou à commuter
NINGBO HAITECHUANG ELECTRONIC CONTROL CO., LTD (Chine)
GUILIN UNIVERSITY OF TECHNOLOGY (Chine)
Inventeur(s)
Weng, Jiafu
Zhou, Bing
Abrégé
The present invention provides a novel enhanced GaN HEMT device structure, prepared by the following steps: epitaxial growth; PN junction gate stack growth; Si-based GaN epitaxial wafer cleaning; photolithography and alignment mark formation; mesa isolation; PN junction stack etching; source/drain ohmic contact; passivation layer deposition; gate trench etching; gate metal deposition; protective layer deposition; and opening formation and metal interconnection. In the present invention, a PN junction gate type GaN HEMT is designed on the basis of a p-type gate, in which a n-GaN layer is added on p-GaN to form a PN junction, and when the PN junction is used to apply voltage to the gate, the PN junction is reverse biased, thereby increasing gate breakdown voltage Vg and producing a large gate voltage swing, thus making it ideal for applications in power switches and producing a larger gate drive bias to ensure operation safety.
H01L 29/778 - Transistors à effet de champ avec un canal à gaz de porteurs de charge à deux dimensions, p.ex. transistors à effet de champ à haute mobilité électronique HEMT
H01L 29/423 - Electrodes caractérisées par leur forme, leurs dimensions relatives ou leur disposition relative ne transportant pas le courant à redresser, à amplifier ou à commuter
A preparation method for a steel bar corrosion-resistant coating for marine concrete, comprising the following steps: (1) pretreating the surface of a steel bar; (2) preparing self-healing corrosion microcapsules; (3) preparing a cathodic electrophoresis coating; (4) carrying out cathodic electrophoresis; and (5) carrying out curing. The electrophoresis coating contains the self-healing corrosion microcapsules, metal powder, and graphene oxide powder. The corrosion resistance of the coating is improved under the co-action of the self-healing property of the self-healing microcapsules and cathodic protection.
C09D 5/44 - Compositions de revêtement, p. ex. peintures, vernis ou vernis-laques, caractérisées par leur nature physique ou par les effets produitsApprêts en pâte pour des applications électrophorétiques
C09D 5/10 - Peintures anti-corrosion contenant une poudre métallique
29.
CORROSION-RESISTANT COATING FOR MARINE CONCRETE, AND PREPARATION METHOD THEREFOR
A corrosion-resistant coating for marine concrete, and a preparation method therefor. The corrosion-resistant coating is formed by uniformly mixing a component A and a component B and then spray coating or brush coating the surface of concrete with the mixture. The component A comprises the following components in parts by weight: 80-100 parts of a waterborne non-ionic epoxy resin, 5-10 parts of a C10-C12 alkyl glycidyl ether, 1-5 parts of a cage-like silsesquioxane, 2-3 parts of a metal powder, 1-2 parts of magnesium-aluminate hydrotalcite powder, 0.1-0.5 parts of a dispersing agent, and 0.1-0.5 parts of a defoaming agent. The component B comprises the following components in parts by weight: 50-70 parts of a modified aromatic amine curing agent, 5-10 parts of a C10-C12 alkyl glycidyl ether, 5-10 parts of a self-healing microcapsule, 1-3 parts of a leveling agent, 1-5 parts of an antioxidant, 0.1-1 part of an adhesion promoter, and 1-3 parts of other additives.
Disclosed in the present invention are a liquid metal-in-carbon nanotube lithium air battery positive electrode and a preparation method therefor. Liquid metal is one selected from gallium-tin liquid metal and gallium-indium liquid metal, and the size distribution of the liquid metal ranges from 100 nm to 800 nm. The compounding mode of the liquid metal and a carbon nanotube is one selected from a blending method and a dropwise adding method, and the mass ratio of the liquid metal to the carbon nanotube is 1:1 to 10:1. The liquid metal-in-carbon nanotube lithium air battery positive electrode prepared by the present invention has good full discharge capacity, rate capability, cycling stability, and passivation prevention capability.
H01M 4/90 - Emploi de matériau catalytique spécifié
H01M 4/86 - Électrodes inertes ayant une activité catalytique, p. ex. pour piles à combustible
H01M 12/08 - Éléments hybridesLeur fabrication composés d'un demi-élément du type élément à combustible et d'un demi-élément du type à élément secondaire
31.
HIGH STRENGTH CORAL CONCRETE AND PREPARATION METHOD THEREOF
A method of preparing high strength coral concrete, wherein the high strength coral concrete is prepared from raw materials of the following parts by mass: 25˜63 parts of cementing materials, 45˜58 parts of coral aggregate, 10˜16 parts of mixing water and water reducer 2˜5% the weight of the cementing materials; the weighed coral aggregate, mixing water, water reducer and 55˜85% of the cementing materials are stirred in an agitator for 10˜15 minutes; the rest of cementing materials are added in batches before initial setting and stirred; then poured and removed from the mould after 24 hours, cured in mixing water at normal temperature for 28 days, to get the high strength coral concrete.
C04B 18/14 - DéchetsRésidus provenant de procédés métallurgiques
C04B 24/26 - Composés macromoléculaires obtenus par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone
B28C 5/00 - Appareillages ou procédés pour la production de mélanges de ciment avec d'autres substances, p. ex. coulis, mortiers, compositions poreuses ou fibreuses
32.
Method of preparing an organic-inorganic hybrid nanoflower
2O, where Ln is one or more of La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, or Y, and n=1.1-2.5. The biological enzyme is one or more of α-amylase, horseradish peroxidase, or laccase. A layered rare earth compound is used as the inorganic carrier for the organic biological enzyme to form the flower-like immobilized enzyme. The immobilized enzyme has better stability and higher catalytic performance when compared with a free enzyme.
C12N 9/02 - Oxydoréductases (1.), p. ex. luciférase
C12N 9/26 - Hydrolases (3.) agissant sur les composés glycosyliques (3.2) agissant sur les liaisons alpha-glucosidiques-1, 4, p. ex. hyaluronidase, invertase, amylase
C12N 9/08 - Oxydoréductases (1.), p. ex. luciférase agissant sur le peroxyde d'hydrogène comme accepteur (1.11)
33.
Airborne super-continuum 50-band hyperspectral light detection and ranging system
An airborne super-continuum 50-band hyperspectral light detection and ranging system comprises an integrated control system, a storage unit, a super-continuum laser system, an optical transmitting system, a reflecting mirror, a scanning system, an optical receiving system, a super-continuum hyperspectral laser detection system, a plane array CCD camera. The operation process includes super-continuum laser system emitting continuous hyperspectral pulsed lasers, performing lasers beam expansion and collimation, emitting it to ground objects, reflecting it, receiving it by the scanning system, transmitting to the optical receiving system, and focusing it into hyperspectral laser detection system for outputting laser hyperspectrum and 3D spatial data, storing laser data in the storage unit with high-resolution multi-spectral data. The system acquires hyperspectral spectrum data with 50 bands at aspectral range of 400-900 nm, spectral resolution of 10 nm and 3D spatial data of ground objects with a ground resolution better than 0.5 meters.
G01S 7/481 - Caractéristiques de structure, p. ex. agencements d'éléments optiques
G01S 17/32 - Systèmes déterminant les données relatives à la position d'une cible pour mesurer la distance uniquement utilisant la transmission d'ondes continues, soit modulées en amplitude, en fréquence ou en phase, soit non modulées
G01S 17/894 - Imagerie 3D avec mesure simultanée du temps de vol sur une matrice 2D de pixels récepteurs, p. ex. caméras à temps de vol ou lidar flash
G01S 17/933 - Systèmes lidar, spécialement adaptés pour des applications spécifiques pour prévenir les collisions d’aéronefs ou d'engins spatiaux
34.
Organic-inorganic hybrid nanoflower and preparation method thereof
2O, where Ln is one or more of La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, or Y, and n=1.1-2.5. The biological enzyme is one or more of α-amylase, horseradish peroxidase, or laccase. A layered rare earth compound is used as the inorganic carrier for the organic biological enzyme to form the flower-like immobilized enzyme. The immobilized enzyme has better stability and higher catalytic performance when compared with a free enzyme.
C12N 9/02 - Oxydoréductases (1.), p. ex. luciférase
C12N 9/26 - Hydrolases (3.) agissant sur les composés glycosyliques (3.2) agissant sur les liaisons alpha-glucosidiques-1, 4, p. ex. hyaluronidase, invertase, amylase
35.
METHOD FOR PREPARING ORGANIC-INORGANIC HYBRID NANOFLOWER BY MEANS OF ELECTRODEPOSITION
Disclosed is a method for preparing an organic-inorganic hybrid nanoflower by means of electrodeposition. The preparation method relates to the technical field of enzyme immobilization. The method for preparing the organic-inorganic hybrid nanoflower by means of electrodeposition comprises: mixing a rare earth nitrate aqueous solution with a biological enzyme and a nitrate to obtain a mixed liquid, wherein rare earth ion(s) in the rare earth nitrate is or are one or more of La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Yb and Y ions, and the biological enzyme is alpha-amylase, horseradish peroxidase or laccase; then performing electrodeposition on the obtained mixed liquid with a three-electrode system to obtain an electrodeposited thin film via deposition on the surface of a working electrode; and sequentially washing and drying the electrodeposited thin film to obtain the organic-inorganic hybrid nanoflower. According to the method, the organic-inorganic hybrid nanoflower is prepared via electrodeposition for the first time. The preparation method has the advantages of a shorter preparation time, a higher preparation efficiency, and simple operation. Furthermore, the prepared organic-inorganic hybrid nanoflower has a high crystalline regularity, and the catalytic performance of the biological enzyme is improved.
C25D 9/02 - Revêtement électrolytique autrement qu'avec des métaux avec des matières organiques
B82Y 40/00 - Fabrication ou traitement des nanostructures
B01J 31/00 - Catalyseurs contenant des hydrures, des complexes de coordination ou des composés organiques
B01J 31/26 - Catalyseurs contenant des hydrures, des complexes de coordination ou des composés organiques contenant en outre des composés métalliques inorganiques non prévus dans les groupes
36.
Method for preparing high-strength coral aggregate concrete under low pressure condition
Disclosed is a method for preparing high-strength coral aggregate concrete under low pressure conditions, including the following steps: weighing cement, mineral admixture, coral aggregate, mixing water, water reducer, and defoamer; mixing the cement and the mineral admixture well to obtain a cementing material; putting the coral aggregate, sea water, water reducer, defoamer, and 55-85% of the cementing material into a closed mixing system to stir for 10-15 min under low pressure conditions, and pouring the remaining cementing material into the mixing system to stir for additional 10-15 min to prepare the high-strength coral aggregate concrete. The high-strength coral aggregate concrete obtained has advantages of high mechanical properties, high compactness, excellent impermeability and durability, drawing on local resources in construction engineering on remote islands and reefs, and maximum resource utilization.
The invention falls within the technical field of candied fruit production and specifically relates to a method for processing fermented preserved passion fruit. The method comprises the following preparation steps: using passion fruit as a raw material, selecting, cleaning, removing the waxy coating, removing the pulp, boiling, cooling and slicing, carrying out enzymatic hydrolysis, carrying out color protection, candying, drying, sprinkling powder and vacuum-packaging. By means of the processing method of the present invention, not only can the nutritional value of passion fruit be retained, and the problem of it not being possible to directly eat passion fruit rind is also solved. The prepared finished product has a unique flavor, a suitably sweet and sour taste and a stable color and luster, can be carried with people and eaten, contains a large amount of nutrients (such as vitamins, proteins, calcium, and SOD enzymes) required by human bodies, and has the unusual effects of eliminating fatigue, reducing fat and blood pressure, diminishing inflammation, removing spots, protecting the skin, etc.
A23G 3/48 - Sucreries, confiseries ou massepainProcédés pour leur fabrication caractérisés par la composition contenant des végétaux ou des parties de ceux-ci, p. ex. des fruits, des graines, des extraits
A23L 33/135 - Bactéries ou leurs dérivés, p. ex. probiotiques
The present invention discloses a simulation device for a preferential flow of a fissured-porous dual-permeability media and an experimental method, and belongs to the technical field of geological engineering. The simulation device comprises a support. The support is detachably connected with a transparent container. The interior of the transparent container is filled with a fissured-porous dual-permeability media experimental model. The top of the transparent container is open. A spraying device is arranged above the transparent container. Liquid rapid outflow ports are formed in the bottom of the transparent container and are connected with a liquid collection device. The present invention further discloses an experimental method of the simulation device and a manufacturing method of the fissured-porous dual-permeability media experimental model. The simulation device of the present invention can highlight and enhance the preferential flow experiment effect.
G01N 13/00 - Recherche des effets de surface ou de couche limite, p. ex. pouvoir mouillantRecherche des effets de diffusionAnalyse des matériaux en déterminant les effets superficiels, limites ou de diffusion
G06T 7/62 - Analyse des attributs géométriques de la superficie, du périmètre, du diamètre ou du volume
A preparation method for high-strength coral aggregate concrete under low air pressure conditions, comprising: taking cement, a mineral admixture, a coral aggregate, mixing water, as well as a water-reducing agent and a defoaming agent as materials; mixing the cement and the mineral admixture evenly to obtain a cementing material, loading the coral aggregate, seawater, the water reducing agent, the defoaming agent and 55-85% of the cementing material into a closed stirring system, stirring for 10-15 minutes under low air pressure conditions, and then loading the remaining cementing material into the mixing system to continue mixing for 10-15 minutes, so as to obtain the high-strength coral aggregate concrete. The obtained coral aggregate concrete has advantages such as a high mechanical performance index, a high density, good impermeability and durability, and also has the advantages such as using local materials and maximizing resource utilization in remote island reef construction projects.
A preparation method for high-strength coral concrete. The high-strength coral concrete is prepared by the following raw materials in parts by mass: 25-63 parts of a cementing material, 45-58 parts of coral aggregate, 10-16 parts of mixing water, and a water reducer with the weight being 2-5% of the weight of the cementing material. The preparation method comprises: placing the weighed coral aggregate, mixing water, and water reducer, and the 55-85% of the cementing material into a stirring machine, and stirring for 10-15 minutes; before initial setting, adding the remaining cementing material in portions and stirring; and removing a mold after 24 hours subsequent to pouring, and placing in the mixing water at a room temperature and curing for 28 days so as to obtain the high-strength coral concrete.
C04B 28/02 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des ciments hydrauliques autres que ceux de sulfate de calcium
C04B 20/00 - Emploi de matières comme charges pour mortiers, béton ou pierre artificielle prévu dans plus d'un groupe et caractérisées par la forme ou la répartition des grainsTraitement de matières spécialement adapté pour renforcer leur propriétés de charge dans les mortiers, béton ou pierre artificielle prévu dans plus d'un groupe de Matières expansées ou défibrillées
B28C 5/00 - Appareillages ou procédés pour la production de mélanges de ciment avec d'autres substances, p. ex. coulis, mortiers, compositions poreuses ou fibreuses
41.
PEANUT ANTIOXIDATIVE PEPTIDE PREPARED FROM HIGH PRESSURE-ASSISTED ENZYMATIC HYDROLYSIS AND PREPARATION METHOD THEREFOR
A method for preparing an antioxidative peptide from a peanut meal by employing a high pressure-assisted enzymatic hydrolysis method, comprising the extraction of heat denatured protein in the peanut meal, high-pressure preprocessing, enzymatic hydrolysis, ultrafiltration, microporous resin separation, gel filtration chromatography, antioxidative activity identification, and mass spectrometry, for producing an antioxidatively activate peptide.
An aquatic weed planting plate for an aquarium is provided. The aquatic weed planting plate for aquarium includes a plate body and at least four feet. A plurality of planting holes is formed in the plate body at intervals. A plurality of dirt collecting holes is formed around each planting hole. The plate body is provided with fixing devices for fixing aquatic weeds, and each fixing device corresponds to one planting hole. The fixing device includes a fixing sleeve, two clamping members and a luminous ring. The plate body is provided with nets for collecting dirt, each net corresponds to one dirt collecting hole, the lower portion of each net is provided with a connecting tube; a plurality of conveying pipes is also arranged below the plate body, each conveying pipe is communicated with the plurality of connecting tubes, each connecting tube is communicated with the corresponding conveying pipe.
The present invention relates to a traditional village propagation system and method based on multimedia digital technology, which solve the technical problem of low propagation efficiency. The technical solution of comprising a VR system, a key feature extraction system, a recommendation system and a network system for data association, with the VR system being used for carrying out data collection on real scenes of traditional villages, carrying out VR modeling and aggregating VR models of all traditional villages into a VR model library, with the key feature extraction system being used for extracting inherent features of the traditional villages from the VR models and user evaluations and matching same, and establishing a mapping relationship between a feature vocabulary and a corresponding traditional village, and with the recommendation system being used for recommending, based on user-defined or automatically acquired user features, villages having features preferred by a user, calling the VR models for the user to preview, and also propagating a user preview result to the traditional villages or other users better solves the problem, and the system and the method can be used for traditional village propagation.
brevets
