Boe Technology Group Co., Ltd.

Beijing Boe Display Technology Co., Ltd.

North China Electric Power University

Hefei Boe Optoelectronics Technology Co., Ltd.

Ordos Yuansheng Optoelectronics Co., Ltd.

Other

Tsinghua University

Lenovo (beijing) Limited

Hefei Xinsheng Optoelectronics Technology Co., Ltd.

Trend Micro Inc.

Peking University

Beijing Lenovo Software Ltd.

Sichuan University

China University of Petroleum

Research Institute of Petroleum Exploration & Development, Petrochina Company Limited

Min Zhang

Jing Yan Ma

Jing Li

Yanfeng Li

Wei Ren

Haoyi Xin

Jingjing Xu

Minsu Kim

Chenrong Qiao

Yajun Han

Jiaming Zhang

Zhenmiao Yang

Wei Li

Tao Wang

Rui Fan

Peng Cheng

Fei Liu

Peng Wang

Kai Wang

Jianfeng Liu

Lei Du

Zhenyu Zhang

Chen Liu

Lu Wang

Guo Chen

Xiaohui Xie

Yi Zhou

Huining Xu

Jun Ma

Jianliang Pei

Zhao Liu

Xiangyang Xu

Wenxi Fu

Yiqun Liu

Menglei Zhang

Yanan Yu

Xiaozhang Lei

Xiaodong Huang

Chunping Wang

Guangqing Zhang

Liyun Deng

Lei Wu

Zhide Wu

Xiaorong Gao

Junhao Han

Zhihe Zhang

Qichao Chen

Yaqi Shen

Lina Ran

Guosheng Ding

Xuesong Chen

Xu Qiao

Yuandan Chen

Bingkun Yin

Qiangxing Zhang

Rula Sha

Yanyong Song

Kefang Wu

Dawei Ji

Yong An

Shengjin Wu

Xinran Chen

Weihang Su

Shuqi Zhu

Zheng Guan

Shaoping Ma

Xiao Yan

Jianxiong Fan

Yilin Liao

Shangpeng Liu

Wanpeng Zhang

Jiangbing Guan

Ziyi Ye

Zhuoyue Bian

Junyi Dai

Chuang Sha

Lingling Feng

Yike Sun

Qiqi Wanyan

Xiangge He

Lijuan Gu

Pan Zhu

Hailong Lu

Zhifei Tao

Qing Gao

A continuous logging method and device is provide, where the method includes obtaining drilling fragment samples and full-diameter core samples, and screening out target rock cuttings from the drilling fragment samples; performing a micro-indentation experiment on the target rock cuttings to obtain a static parameter thereof; performing a triaxial compression experiment on the full-diameter core samples to obtain a dynamic parameter and a static parameter thereof; determining a first correspondence between the static parameter of the target rock cuttings and the dynamic parameter of the full-diameter core samples; determining a second correspondence between logging data and the static parameter of the target rock cuttings based on the first correspondence; and drawing a formation mechanical property profile based on the second correspondence. The method solves the problem of conventional methods which cannot draw a continuous and complete profile of the mechanical property of the whole well section.

Continuous logging method and device

A display panel is provided, which includes a first substrate and a second substrate arranged opposite to each other. The first substrate includes a first electrode and a second electrode. The second substrate includes a light shielding layer. The light shielding layer includes a light transmitting region and a light shielding region. The first electrode includes slits extending in a first direction, and an orthographic projection of two ends of at least one of the slits onto the first substrate is within an orthographic projection of the light shielding region onto the first substrate. A display panel and a display device are also provided.

Display panel and display device

The present disclosure relates to a method and an apparatus, an electronic device and a storage medium for web search. The method includes: acquiring a steady-state visual evoked potential in EEG information, where the steady-state visual evoked potential is generated when a user gazes at a key on a query inputting keyboard in a visual spelling page; sending the steady-state visual evoked potential to a server, such that the server, based on the steady-state visual evoked potential, determines a character string inputted by the user, and a landing page corresponding to the character string; and in response to receiving the landing page sent by the server, displaying the landing page.

Method, apparatus, electronic device, and storage medium for web search

The disclosure relates to a method, system and storage medium for suppressing sub/super-synchronous oscillation for direct-drive wind turbine based on energy compensation. The method comprises: real-time collecting the bus voltage and the node injection current, obtaining the transient energy of direct-drive wind turbine; collecting the dynamic angle of PLL when the variation rate of the transient energy is positive, calculating the compensation energy and the increments of fundamental-frequency voltage of several supplementary energy branches based on the bus voltage and the node injection current and the dynamic angle of PLL; with the compensation energy of supplementary branches reaching the maximum and the increment of fundamental-frequency voltage being the minimum as the objective, and with the frequency-domain characteristic and fundamental-frequency voltage characteristic of control links being satisfied as the constraints, determining the compensation coefficients of supplementary energy branches, and then enabling the supplementary energy branches.

Method, system and storage medium for suppressing sub/super-synchronous oscillation for direct-drive wind turbine based on energy compensation

A pixel electrode, including: a plurality of strip-shaped first electrodes, where the plurality of the first electrodes are arranged along a first direction, each of the first electrodes extends along a second direction, and the second direction intersects with the first direction; a second electrode, where the second electrode is connected to first ends of the plurality of first electrodes, and the first ends of the plurality of first electrodes are connected through the second electrode; and a third electrode, where the third electrode is connected to a second end of at least one of the first electrodes, and a direction of an electric field of an area in which the third electrode is disposed intersects with both the first direction and the second direction.

Pixel electrode, pixel structure, display panel, and display apparatus

The present disclosure is directed to a single-phase reclosing method, device and storage medium for AC/DC system. The method comprises: acquiring three-phase voltages at inverter-side AC bus close to the transformer, three-phase currents measured at the outlet of inverter-side AC line and three-phase voltages at inverter-side AC bus far from the transformer; calculating the energy calculation value and energy operation value of the fault line; identifying the fault nature of fault line within the maximum time delay, according to the energy calculation value and energy operation value of fault line and an energy criterion of transient/permanent fault; issuing a reclosing control signal based on the fault nature of fault line to realize effective reclosing of the fault line.

Single-phase reclosing method, device and storage medium for AC/DC system

The application involves a stability evaluation method and system of direct-drive wind turbine generator, which belongs to the technical field of wind power generation. It solves the problems of poor stability of direct-drive wind turbine generator, low safety performance, failure to realize mutual cooperation between online stability evaluation and parameter adjustment in the existing technology. Firstly, the variation of direct-drive wind turbine generator terminal voltage, current, power and PLL angle of direct-drive wind turbine generator is measured, the terminal energy and the energy negative gradient of direct-drive wind turbine generator is calculated. Then, the system stability is assessed according to the value of energy negative gradient, the influence of the critical parameters on system stability is analyzed and the preliminary adjustment strategy is proposed. It realizes the mutual cooperation between stability level evaluation and parameter adjustment, and improves the working efficiency of the system.

Stability evaluation method and system of direct-drive wind turbine generator

The application relates to a method and device for locating equipment-level oscillation sources of DFIG grid-connected system, which belongs to the technical field of wind generation, and solves the problem of stable operation of the wind power grid-connected system at the current stage. The method comprises: constructing the energy correlation topology network of the components in DFIG; analyzing the dynamic energy flows between the components during the oscillation process; calculating magnitudes of the causality between the dynamic energy flows; building a causality diagram of oscillation transmission in the DFIG; analyzing the distribution of the magnitude of the causality in the diagram, determining the oscillation transmission routes and locating the oscillation sources.

Method and device for locating equipment-level oscillation sources of DFIG grid-connected system

The application discloses a light scattering parameter measurement system and its measurement method. Dual-frequency scattering interference technology is adopted to obtain distributed measurement of Rayleigh scattering parameters in an optical fiber. The Rayleigh scattering coefficient r and phase retardance &#x3b8; are modulated on different components of the interference signal respectively by using the dual-frequency interference technology. The Rayleigh scattering coefficient r and phase retardance &#x3b8; can be decoupled by simple filtering, to obtain separate measurements. A linear stretch is applied to the optical fiber under test, to add uniform phase change signals at all positions of the optical fiber under test. As a result, the term containing only Rayleigh scattering coefficient r can be extracted by low-pass filtering. The direct measurement of Rayleigh scattering parameters is of great significance to fundamental and application researches related to Rayleigh scattering of optical fiber.

Light scattering parameter measurement system and its measurement method

A document processing method and device are provided. The method includes: acquiring a template of a standard format document, the template including folders having a hierarchical structure, generating folder labels corresponding to the folders on the basis of the folders, acquiring a document to be processed, generating a document label of the document to be processed on the basis of the document to be processed, determining whether there is a folder label matched with the document label of the document to be processed, and associating the document to be processed with the folder corresponding to the matched folder label in a case that there is the folder label.

Document processing method and device

The present invention discloses a rock mechanics experiment system for simulating deep-underground environment, including a triaxial chamber consisting of a chamber cavity and a test pedestal, a stress field building module, a high pressure seepage field building module, a high temperature field building and a seepage medium permeating control measurement module arranged in the triaxial chamber, a lifting module used for installing and disassembling of the chamber cavity, and computer module used for controlling the operation of system and calculating and outputting the test data. The lifting module includes a door-shaped support frame, a cylinder piston device vertically mounted on the door-shaped support frame beam, a coupling device and a safety suspension device. The coupling device includes an oil hydraulic rod with the upper end fixedly coupled with the piston, a safety disk fixedly coupled with the lower end of the hydraulic rod, and two symmetrically disposed coupling assemblies.

Rock mechanics experiment system for simulating deep-underground environment

A rolling member includes a rolling shaft; rolling wheels fixed to two ends of the rolling shaft, rolling surfaces of the rolling wheels being sleeved with flexible loops respectively; at least one first engagement structure provided on a rolling surface of each rolling wheel; at least one second engagement structure provided on a surface of each flexible loop facing toward the rolling surface of the rolling wheel; wherein the at least one first engagement structure engages with the at least one second engagement structure.

Rolling element and transport apparatus

Disclosed is a thin film transistor, an array substrate, a method for manufacturing the same, and a display device. The method includes: forming a source and drain on a base substrate and forming a semiconductor layer. Between the step of forming the source and drain and the step of forming the semiconductor layer, the method further includes: forming a diffusion barrier layer. Metal atoms diffused from the source and drain and passing through the diffusion barrier layer react with a part of the semiconductor layer near the source and drain, and a metal transition layer containing metal silicide is formed.

Thin film transistor, array substrate, method for manufacturing the same, and display device

The disclosure relates to a detection light ranging apparatus and method. The detection light ranging apparatus of the disclosure comprises: a detection light emitting circuit that emits detection light; a first optical assembly that divides the detection light into a first sub-detection light and a second sub-detection light; a second optical assembly that receives the second sub-detection light and causes the second sub-detection light to be emitted after being reflected at least once after being reflected by the measured object; and a timing circuit that receives the first sub-detection light and starts timing to obtain a first time, and receives the second sub-detection light emitted after being reflected at least once and finishes timing to obtain a second time. The detection light ranging apparatus of the disclosure can solve the technical problem of poor measuring precision of the prior ranging apparatuses.

Detection light ranging apparatus and method

Disclosed are a method for controlling a terminal device, a terminal device and an electronic device. The method comprises: acquiring a first input; determining, in the locked state, a first instruction of the first instruction set corresponding to the first input, the first instruction being an unlocking instruction; controlling a switching from the locked state to the unlocked state according to the unlocking instruction; determining, in the unlocked state, a second instruction of the second instruction set corresponding to the first input; and responding to the second instruction. With the present invention, user operations are simplified, and intelligence of the terminal device is improved.

Method and terminal device for controlling a terminal device in a locked and unlocked state

Growing community of inventors

Beijing, China

Min Zhang