Chinese Academy of Sciences

Guangzhou Automobile Group Co., Ltd.

Fibrway Material Science & Technology Development Co., Ltd.

Zhongkai University of Agriculture and Engineering

Guangzhou Shenglu Biotech Limited Company

Fibrway Materials Science & Technology Development Co., Ltd.

The Second Affiliated Hospital of Guangzhou University of Chinese Medicine

Guangdong Provincial Hospital of Tcm

Wang, Yi

Guangdong Provincial Academy of Chinese Medical Sciences

The Second Clinical College of Guangzhou University of Chinese Medecine

Yi Wang

Gang Li

Yu Zhang

Xiaosen Li

Zhaoyang Chen

Jun Cao

Bo Liu

Zhiming Xia

Jian Hu

Jiucai Zhang

Xiaodong Han

Ningsheng Huang

Chungang Xu

Jin Shang

Kai Wang

Jin Long

Kefeng Yan

Yang Wang

Ling Meng

Yunzhen Yao

Pengfei Shen

Jun Li

Jiayuan Zhou

Xuke Ruan

Zhipeng Wen

Xianna Meng

Lixing Ding

Jinming Zhang

Yun Liang

Jingshan Zeng

Qiunan Lv

Sen Qian

Tian Chi Zhao

Jianwu Liu

Ju Wang

Xiao Lin

Runyue Huang

Hualun Liang

Zhimin Yang

Liqiao Han

Jinlang Zhong

Xiaowan Wang

Yiqi Yang

Yunshan Wu

Ennian Li

Bidan Zheng

Quanfu Chen

Xianzhang Huang

A high-strength and high-damping Al—Zn bimetal alloy and a preparation method thereof are provided in the present application, belonging to the field of bimetal alloy materials. The high-strength and high-damping Al—Zn bimetal is obtained from an Al alloy and a Zn alloy or Zn; the bimetal is structured by an Al alloy skeleton and its embedded Zn alloy; the alloy material has the high strength of an Al alloy and the high damping performance of a Zn alloy.

High-strength and high-damping aluminum-zinc bimetal alloy and preparation method thereof

The vehicle control method includes: acquiring vehicle parameters of a target vehicle and scene parameters of a scene where the target vehicle is located; searching for a target strategy corresponding to the vehicle parameters and the scene parameters in a strategy library, if the vehicle parameters are within a preset vehicle parameter range and the scene parameters are within a preset scene parameter range; inputting the vehicle parameters and the scene parameters into a pre-training model to generate the target strategy, if the vehicle parameters are not within the preset vehicle parameter range or the scene parameters are not within the preset scene parameter range; and controlling the target vehicle based on the target strategy.

Vehicle control method, electronic device and medium

A system and method for exploiting a marine natural gas hydrate resource including a vertical well, comprising a sleeve configured to penetrate through a marine layer and a hydrate reservoir covering layer, and penetrate downwards into a natural gas hydrate reservoir; a section of the sleeve in the natural gas hydrate reservoir is provided with a perforating channel; a horizontal well, connected to a bottom end of the sleeve; a production string, disposed in the sleeve and extending downwards into the horizontal well, wherein a bottom of the production string is provided with a gas/water collection inlet; a hot water injection pipe, disposed in the production string; and a bottom of the hot water injection pipe is provided with a hot water injection opening; and a gas bladder, disposed in the horizontal well and connected to the hot water injection opening in the hot water injection pipe.

System and method for exploiting marine natural gas hydrate resource

A device and a method for simulating layered stratum containing natural gas hydrates are provided. The device includes a reactor; wherein the reactor includes an upper cover, a lower cover, and a reactor body, wherein the upper cover and the lower cover are sealably attached to two ends of the reactor body to form a closed chamber; an overlying pressure layer, a superstratum layer, a hydrate layer and a substratum layer are sequentially formed throughout inside of the closed chamber from the upper cover to the lower cover, wherein each layer is respectively filled with different kinds of porous media and fluids and the each layer is provided with a stratal-fluid annular container; each stratal-fluid annular container has an outer periphery contacting an inner surface of the reactor body. The method is conducted using the device.

Device and method for simulating layered stratum containing natural gas hydrates

A system for exploiting natural gas hydrate with downhole gas-liquid synergic depressurization includes a casing configured to form an exploitation well. An upper end of the exploitation well is connected to a produced gas collection pipeline, and the produced gas collection pipeline is configured to be connected to a produced gas recovery system. A perforated channel is distributed in a section of the casing located in a natural gas hydrate reservoir. A tubular string component assembly is mounted in the exploitation well, and includes an outer string, a production tubular string and an auxiliary riser. A first check valve is mounted at the bottom of the outer string, a gas supply pipeline is connected into an upper portion of the outer string, and a flow controller is mounted in the gas supply pipeline. The production tubular string is mounted in the outer string.

System and method for exploiting natural gas hydrate with downhole gas-liquid synergic depressurization

A device and a method for experimental exploitation of natural gas hydrates in full-sized production wells are provided. The device includes a full-diameter well, and the full-diameter well includes a heating circulation tube, a temperature sensor tube, an upper sealing unit and a lower sealing unit. Perforations are provided along a body of the full-diameter well. A reactor includes an upper cover, a lower cover, and a reactor body. The method is conducted by using the device and the reactor. The device and method allow simulation of sand-control wellbores in actual exploitation of natural gas hydrates, and realize horizontal and vertical sand-control experiments.

Natural gas hydrate exploitation experimental device and method for full-sized production wells

A divisible device and a method for sand production and sand control experiment for natural gas hydrate exploitation. The experimental device includes a reactor system, a feeding system, a separation and measurement system, a water-bath jacket system, a support and safety system, and a software recording and analyzing system. In the reactor system, the reactor units can be combined in different ways depending on the experimental conditions and purposes. The reactor units include: left/right reactor units, secondary reactor units, central reactor units, and caps. The combination of a left/right reactor unit with a cap gives a hydrate formation reactor without sand control screens. Combining the left/right reactor unit, secondary left/right reactor units and central reactor units with other accessories allows the reactor system to carry out the simulation experiments with either zero, one, or two view zones, and with either one or two wells.

Divisible experimental device and method for sand production and sand control during natural gas hydrate exploitation

A comprehensive three-dimensional exploitation experimental system for large-scale and full-sized exploitation wells includes a reactor, configured to prepare a natural gas hydrate sample, for simulating an environment for forming a natural gas hydrate reservoir in seafloor sediments. The reactor includes a reactor body, an upper cover disposed at an upper surface of the reactor body, and a lower cover disposed at a lower surface of the reactor body; a gas introducing module, configured to introduce gas to the reactor during hydrate formation; a liquid introducing module, configured to introduce liquid to the reactor during hydrate formation; a temperature regulating module, configured to regulate a temperature in the reactor; a data collecting-processing-displaying module, configured to collect, store, process and display data of the comprehensive three-dimensional exploitation experimental system during an experiment.

Comprehensive three-dimensional exploitation experimental system for large-scale and full-sized exploitation wells

Disclosed are a vehicle control method, a vehicle control apparatus, and a storage medium. The method includes acquiring real-time road condition information about an ego vehicle. The real-time road condition information can be used to indicate whether the ego vehicle arrives at an intersection. Vehicle state information can be acquired when the ego vehicle arrives at the intersection. Once a prediction result is obtained based on the vehicle state information, the ego vehicle can be controlled according to the prediction result.

Vehicle control method and apparatus, storage medium, and electronic device

A device for measuring stratum deformation caused by natural gas hydrate dissociation is provided. The device is configured to be disposed inside a natural gas hydrate reactor, wherein the natural gas hydrate reactor is configured to simulate natural gas hydrate formation layers in the natural gas hydrate reactor, and the natural gas hydrate formation layers include a superstratum layer, a sediment layer and a substratum layer from top to bottom. The device includes a displacement sensor fixing plate, displacement sensors and a flexible elastic plate. A plurality of displacement sensors are provided and evenly distributed, wherein a first end of each displacement sensor is fixed to the displacement sensor fixing plate and a second end of each displacement sensor is stretchably and sealingly fixed to the flexible elastic plate. The flexible elastic plate is tightly attached to the superstratum layer.

Device for measuring stratum deformation during natural gas hydrate exploitation

A flow field measurement device and a method for a scale model of a natural gas hydrate reservoir are provided. The measurement device includes non-central vertical well pressure sensors, non-central vertical well outlet valves, communicating vessel valves, differential pressure sensors, a communicating vessel, a central vertical well outlet valve, and a central vertical well pressure sensor. By providing differential pressure sensors, between a measuring point of the central vertical well and a measuring point of each of the non-central vertical wells, to measure pressure differences, the flow field measurement device enables a reasonable distribution of a three-dimensional space inside the reactor to analyze gas-liquid flow trends in the reactor with a simulated flow field. Determining whether to turn on the differential pressure sensors according to a predetermination based on a feedback from the pressure sensors, allows flow field measurements in the reactor under both high and low pressure differences.

Flow field measurement device and method for scale model of natural gas hydrate reservoir

A device and a method for gas-water-sand separation and measurement during a simulated exploitation of natural gas hydrates are disclosed. The device includes a natural gas hydrate formation and dissociation system and a filtering unit. The natural gas hydrate formation and dissociation system includes a compressed air pump, a reactor, and a water-bath temperature regulating unit. The filtering unit includes a kettle body, wherein an inlet end of the kettle body is connected to the sand-control liner zone, an outlet end of the kettle body is connected to a water-collecting container, and a plurality of filtering layers are disposed inside the kettle body from the inlet end to the outlet end. The method is conducted using the device. The device and the method realize the gas-water-sand separation and measurement of produced gas-water-sand mixture during a simulative exploitation process, allowing for a direct inspection on a sand production and sand control.

Device and method for gas-water-sand separation and measurement in experiment of natural gas hydrate exploitation

A one-step molded lithium ion battery separator and preparation method and application thereof are provided. The battery separator comprises a support layer and a filler layer. The support layer comprises at least two of superfine main fiber, thermoplastic bonded fiber and first nanofiber, and the filler layer comprises at least one of inorganic fillers and third nanofiber. The lithium ion battery separator has a thickness of 19-31 &#x3bc;m, a maximum pore diameter of no more than 1 &#x3bc;m, and a heat shrinkage rate of less than 3% after treatment at 300&#xb0; C. for 1 hour, and the separator still has a certain strength at a high temperature, ensuring stability and isolation of the rigid structure of the filler layer at a high temperature, satisfying requirements of the separator in terms of heat resistance, pore size and strength, having excellent comprehensive performance.

One-step molded lithium ion battery separator, preparation method and application thereof

An adaptive processing method for new scenes in autonomous driving, comprising: obtaining scene data corresponding to new scene of vehicle driving, wherein the scene data describes vehicles state and driving operations in the new scene; obtaining a test set of the new scene based on processing the scene data by a preset distribution; updating parameters of a pre-training model by inputting the test set, and obtaining a scene model adapted to the new scene based on gradient iteration of general model parameters of the pre-training model, wherein the scene model is configured to output an autonomous driving strategy for the vehicle in the new scene. Therefore, the autonomous driving vehicle transforms a new scene to a known scene, and no longer be troubled by unpredictable new scenes, and greatly enhance the reliability and stability of autonomous driving.

Adaptive processing method for new scenes in autonomous driving, autonomous driving method and system

A battery separator and a preparation method therefor are provided. The separator includes a lithium ion battery separator substrate and an inorganic coating, the lithium ion battery separator substrate consists of a support layer and a dense layer, and the inorganic coating is coated on the dense layer; the separator has excellent high-temperature resistance, and still has good strength retention and the heat shrinkage rate thereof is no more than 2% after treatment at 300&#xb0; C. for 1 h, and thus ensures the stability and isolation of the rigid structure of the separator coating at high temperatures; the substrate has a uniform and compact double-layer structure, effectively controls phenomena such as pinholes and filler particles fall-off in a subsequent coating process, and meets the requirements of lithium ion battery separators with respect to heat resistance, porosity and strength, thus having excellent comprehensive performance.

Battery separator including inorganic coating disposed on dense layer formed on support layer, and method for preparing the same

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Guangzhou, China

Yi Wang