Boe Technology Group Co., Ltd.

Hefei Boe Optoelectronics Technology Co., Ltd.

Tsinghua University

Beijing Boe Display Technology Co., Ltd.

Beijing University of Technology

Chinese Academy of Sciences

Guangzhou Xaircraft Technology Co., Ltd

Nuctech Company Limited

Cccc Highway Consultants Co. Ltd.

China Communication 2nd Navigational Bureau 2nd Engineering Co., Ltd.

The Second Harbor Engineering Company

Newlighting Electronics Co. Ltd.

Bin Wu

Bochang Wang

Haijun Shi

Yue Li

Kun Li

Chen Zhao

Zuoyi Zhang

Jinhua Wang

Dan Li

Hongbo Feng

Liang Guo

Zhaoshou Tian

Enliang Zhang

Lei Zhang

Hong Wang

Yuanjing Li

Li Wang

Liang Li

Li Li

Xiaodong Yu

Yu Liu

Wei Qin

Wei Feng

Xiang Gao

Bing Liu

Haitao Wang

Nan Li

Wei Lin

Zhiqiang Wang

Chao Liu

Chang Liu

Chang Zhang

Fu Li

Lina Wang

Yigang Yang

Xuan Liu

Jie Gao

Changjia Fu

Jin Hu

Jiajia Liu

Shanlei Hou

Yujie Dong

Bin Peng

Qingshan Qu

Wei Zhong

Qinjian Zhang

Tiezhu Li

Yousheng Chen

Xiaodi Sun

Cunfu He

Xuequan Yu

Jingpin Jiao

Yonggang Du

Zhuyi Luo

Mingshu Li

Wenjun Shen

Chunguang Tian

Guohua Xu

Manping Niu

Ran Tong

Jibing Gao

Yuwen Li

Liyu Liu

Xiangzhen Wang

Jiachen Yu

Yan Lyu

Xing Yue

Kexin Liu

Lizhi Ren

Yuliang Bao

Weiwei Hou

Dong Huang

Wei-wei Hou

Yuanming Pan

Jinlong Du

Wenyuan Liang

Yanjun Wu

Zhiqing Rui

Jingzheng Wu

Tianyue Luo

Jiong Guo

Heng Liang

Changcheng Wei

Quan Cheng

Qingxi Zeng

Kaikai Li

Zhongxing Yu

Yadong Gao

Guangzhi Li

Heng Lian

Disclosed are a RISC-V and O-CFI mechanism-based defense method and apparatus for code reuse attacks, comprising: constructing a control flow graph according to program source codes randomized in a basic block order; on the basis of the control flow graph, obtaining a boundary range of a control flow transfer branch; executing the program source codes, obtaining a target node to which each control flow is to be transferred, and analyzing each target node in combination with the boundary range so as to defend against an abnormal control flow. The present invention can identify an illegal control flow transfer with the assistance of RISC-V security hardware according to the characteristics of a program control flow itself, and effectively handle code reuse attacks, thereby enhancing the security defense capabilities of an RISC-V system.

RISC-V and O-CFI mechanism-based defense method and apparatus for code reuse attacks

The present invention discloses a method for in-situ detection of the state of charge (SOC) of pouch-type lithium-ion batteries using ultrasonic guided waves. The invention involves attaching two circular piezoelectric patches symmetrically at a fixed distance from each other on the surface of the lithium-ion battery using a coupling agent. A function generator is controlled to produce a Hanning-window-modulated five-cycle sine signal to excite the circular piezoelectric patch located on the left side of the battery, generating ultrasonic guided waves within the battery. These waves are then received by the circular piezoelectric patch located on the right side of the battery. The received guided wave signal is processed to extract the time-domain characteristic parameters of the wave (transit time). Based on the correspondence between the guided wave characteristic parameters (transit time) and the state of charge, the method enables the detection of the SOC of the pouch-type lithium-ion battery. The invention employs a pair of circular piezoelectric patches in a one-actuation, one-reception manner for the detection of lithium-ion batteries, achieving in-situ detection of the SOC of pouch-type lithium-ion batteries without the need to record external parameters such as current and voltage.

In-situ ultrasonic method for detecting the state of charge in soft-packaged lithium-ion batteries

Multiple groups of nuclear fuel storage containers can be put into the nuclear fuel transport container provided by the present application as a whole to realize the overall transportation of the multiple groups of storage containers; the transport container has a cubic structure in appearance, which can fully utilize the transportation space and improve the transportation efficiency; an outer side of the transport container is provided with an anti-penetration structure, which can effectively alleviate the collision and penetration damage caused by transportation and hoisting accident, and ensure that the nuclear fuel element can be safely enclosed after the accident; heat insulation material is provided between inner and outer steel plates of the transport container, which can effectively protect the internal storage container and the loaded nuclear fuel element under fire condition, and the heat insulation material also has a function of drop buffer.

Method and equipment for transporting nuclear fuel of nuclear power plant

A display device and a tiled display device are provided. The display device includes: a display panel; a backlight module located on an incident side of the display panel, and including a frame and a light guiding structure, where the frame includes a first supporting surface and a second supporting surface both facing the display panel, where the second supporting surface is located on a side of the first supporting surface away from the display panel, the first supporting surface is attached to a backlight surface of the display panel, and the second supporting surface is engaged with the light guiding structure. The assembling of the display panel and the backlight module can be achieved in the present disclosure.

Display devices and tiled display devices

Provided are a display panel and a manufacturing method thereof, a display device and a spliced display device. The display panel includes: a color filter substrate (), an array substrate () and a first conductive portion (), where a display region (AA) and a peripheral region (NA) are formed on the display panel, and the peripheral region (NA) surrounds the display region (AA); the array substrate () includes pixel circuits and a second conductive portion (), where the pixel circuits are located in the display region (AA), and the second conductive portion () is located in the peripheral region (NA); the second conductive portion () is connected with the pixel circuits; the first conductive portion () is located on a side surface of the array substrate () and a side surface of the color filter substrate (), and the first conductive portion () is connected with the second conductive portion (). By such technical solutions, a width of the peripheral region can be reduced, which is beneficial to realizing a narrow bezel and increasing a screen-to-body ratio.

Display panels and manufacturing methods thereof, display devices and spliced display devices

A light emitting module and a display module. The light emitting module includes a light source () assembly (); the light source () assembly () includes a substrate () and light sources (), and the light sources () are located on the substrate (). The substrate () includes a first area (Q) and a second area (Q), the first area (Q) surrounds the second area (Q), and the light emitting surfaces of the light sources () located in the first area (Q) are inclined and face the second area (Q). With the light emitting module, the light emitted by the light sources () located at the edge can be inclined toward the center of the light emitting module, which can reduce the light at the edge of the light emitting module, thereby reducing the light leakage phenomenon at the edge of the light emitting module, which is beneficial to improve the display quality.

Light emitting module and display module

Provided is a display module. The display module includes a first display panel including a first edge sealing region; a second display panel including a second edge sealing region, wherein the second display panel and the first display panel are disposed in a same layer and spliced with each other, and the second edge sealing region is abutted against the first edge sealing region; and a third display panel disposed on backlight sides of the first display panel and the second display panel, wherein both an orthographic projection of the first edge sealing region onto the third display panel and an orthographic projection of the second edge sealing region onto the third display panel fall within a display region of the third display panel; wherein the first display panel, the second display panel and the third display panel are all liquid-crystal display panels.

Display module for achieving seamless splicing display, method for manufacturing same, and display device

The invention discloses a low-frequency electromagnetic detection method for large-scale damage of ferromagnetic materials based on broadband excitation. Detection direction of the magnetic field signal of low-frequency electromagnetic sensor is determined according to the size of ferromagnetic member detection defect; the reference signal and detection signal acquisition position are selected, fix the distance between sensor and tested part, excite a Chirp signal as a broadband excitation signal to perform broadband excitation low-frequency electromagnetic detection; the computer processes collected broadband detection signal; use the difference of Euclidean distance between reference signal and defect detection signal as a defect characterization parameter to obtain the Euclidean distance curve of different depth defects on the upper and lower surfaces of ferromagnetic components with the detection position. Through the analysis and processing of the low-frequency electromagnetic broadband detection signal, the Euclidean response signal and reference signal under broadband excitation are used to characterize the change of material damage degree, which can effectively reduce the influence of magnetic field skin effect, and is beneficial to the effective characterization of the upper and lower material surface defects of at different depths.

Low-frequency electromagnetic detection method for large-scale damage of ferromagnetic materials based on broadband excitation

The invention discloses a non-linear Lamb wave mixing method for measuring stress distribution in thin metal plates. The method is suitable for stress distribution detection and stress concentration area positioning in a plate structure and belongs to the field of nondestructive detection. The steps of the present invention is: first determines the excitation frequencies of two fundamental waves according to the measured object and the nonlinear Lamb wave mixing resonance conditions; the left and right ends of the test piece are oppositely excited two rows of A0 mode waves, and the excitation signal receive the sum-frequency S0 signal at a certain position to detect non-linear mixing stress of the plate structure; by changing the excitation time delay of the excitation signal, perform mixing scan on different positions of the test piece to extract the mixing wave amplitude; finally, according to the variation of amplitude of sum frequency difference signal with mixing position to realize the detection of stress distribution of metal plate and the positioning of the stress concentration area.

Non-linear Lamb wave mixing method for measuring stress distribution in thin metal plates

An unmanned aerial vehicle control method and apparatus are provided. The method includes: obtaining, in real time, the motion status information of an unmanned aerial vehicle moving under the effect of a user-applied external force (); generating at least one unmanned aerial vehicle control instruction based on the motion status information () and controlling the unmanned aerial vehicle to perform a corresponding flight action according to the at least one unmanned aerial vehicle control instruction (). After an unmanned aerial vehicle moves under the effect of a user-applied external force, the control method further controls the unmanned aerial vehicle to perform a corresponding flight action according to the current motion tendency of the unmanned aerial vehicle, thus freeing the user from mastering a complicated unmanned aerial vehicle control technology, reducing the difficulty of the control over the unmanned aerial vehicle and making the unmanned aerial vehicle more applicable.

Unmanned aerial vehicle control method

A base substrate includes a first base layer and an electrostatic resistant layer that are disposed in a stack.

Base substrate and manufacturing method therefor, apparatus, display substrate, and display device

Provided are an Unmanned Aerial Vehicle (UAV) operating method and device. The method includes that: mapping information of an operation object to be operated is acquired, the mapping information including a safe height, geographic position information and a spray radius, of the operation object; a flight height of the UAV is adjusted to the safe height, and the UAV flies, according to the safe height, to a position corresponding to the geographic position information; and at the position corresponding to the geographic position information, a spiral spraying operation is performed on the operation object based on the spray radius ().

Unmanned aerial vehicle operating method and device

A nuclear power plant spent fuel negative pressure unloading system comprises a fuel element transport pipe and a gas transport pipe. The fuel element transport pipe comprises a fuel element output pipe, a fuel element lifting pipe, and a fuel element unloading pipe connected in series. The fuel element unloading pipe is arranged obliquely downward in the direction of fuel element movement. The distal end of the fuel element unloading pipe is connected sequentially to fuel loading apparatus and a transfer apparatus. Two nozzles of the gas transport pipe are connected to set positions on the fuel element output pipe and the fuel element unloading pipe respectively. A gas driving mechanism is connected to the gas transport pipe. An inlet of the gas driving mechanism is arranged at one end in proximity to the fuel element unloading pipe.

Nuclear power plant spent fuel negative pressure unloading system

The present application relates to the field of immersed tube jointing, and more particularly relates to a post-grouting method for an immersed tube joint base. The post-grouting method includes the following steps: before locked backfilling of immersed tubes to be implanted, disposing a grouting tube capable of outputting solidifiable slurry in a furrow below immersed tubes; and after the locked backfilling, grouting the immersed tubes by using the grouting tube. For the purposes of adjusting postures and heights of the immersed tubes in case of abnormal settlement during installation, solving the problems on the stabilities and the service lives of immersed tube joints due to settlement of gravel mattresses or a geologic structure thereunder after installation, and enabling the immersed tubes to achieve a better bearing effect on a load during use, the present application provides the post-grouting method for the immersed tube joint base.

Post-grouting method for immersed tube joint base

A residual heat removal ventilation system for spent fuel dry storage facility of nuclear power plant includes a natural ventilation apparatus and a forced ventilation apparatus, comprising a cold air intake chamber, a hot air removal chamber, a pipeline, a ventilation heat shield cylinder, a heat removal fan, and an air cooling equipment having certain connecting relationships and being correspondingly arranged in a storeroom, an operating room and a ventilation equipment room. The system doesn't require storing spent fuel in a pool storage manner. The safety of the spent fuel doesn't rely on power equipment, thus not only reducing routine maintenance, saving energy, but also has inherent safety. Furthermore, the system can be used to cool spent fuel storage canisters within spent fuel storage facility of pebble bed high temperature gas-cooled reactor nuclear power plant, and discharge residual heat of spent fuel storage canisters to the external environment.

Residual heat removal ventilation system for spent fuel dry storage facility of nuclear power plant

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Beijing, China

Bin Wu