Advanced New Technologies Co., Ltd.

Zhejiang Sunon Furniture Manufacture Co., Ltd.

Hangzhou City University

Alibaba Group Holding Limited

Zhejiang University

Hangzhou Endonom Medtech Co. Ltd.

Jing Li

Xujun Zhang

Liangzheng Ni

Mian Huang

Wenbo Yang

Chen Jiang

Hailin Ge

Yuwei Chen

Chunpei Feng

Feifan Ji

Tingchao Zhang

Fan Zhou

Peng Li

Xin Zhang

Hui Liao

Bei Liu

Daliang Guo

Huifang Zhao

Hongbing Tang

Lizheng Sha

Yinchao Xu

Tianzhong Yuan

Ziyang Chang

Qianyu Sun

Yahui Meng

Disclosed is a method for searching a MTPA curve of a vehicle permanent magnet synchronous motor based on a DC power, which includes a current closed-loop adjuster, a current command generator, a current command angle generator, an active power calculator, an active power storage and comparison processor and a current given vector corrector. According to the present disclosure, the tedious manual calibration is relieved, the optimal angle is automatically searched, and the production efficiency is improved; according to the present disclosure, the step size can be arbitrarily set according to the calibration requirements, so as to achieve a higher calibration accuracy.

Method for tracing MTPA curve of vehicle permanent magnet synchronous motor based on DC power

Disclosed is a preparation method of double-layer carbon-paper base paper with high uniformity and gradient pores, including adding carbon fibers to alkali lignin aqueous solution for treatment, controlling the alkali lignin aqueous solution to reach subcritical water conditions, and modifying the carbon fibers by sodium phenol reactive groups under the subcritical water conditions of the alkali lignin, for improving hydrophilic groups on a surface of the carbon fibers and a surface rough structure; further, modifying the carbon fibers to produce carbon nanotube clusters on the surface of the carbon fibers to obtain surface-thermally-modified carbon fibers, and adding the surface-thermally-modified carbon fibers to a dispersant for dispersion, stirring together with auxiliary materials to prepare a mixed slurry, and preparing the mixed slurry into the carbon-paper base paper by wet forming process.

Preparation method of double-layer carbon-paper base paper with high uniformity and gradient pores

Implementations of the present specification disclose mobile payment methods, apparatuses, and devices. In one aspect, the method includes: monitoring, by a terminal device that is in lock screen mode, outputs of one or more sensors of the terminal device; determining that the outputs of the one or more sensors satisfy first specified criteria indicative of one or more particular body movements; in response to determining that the outputs of the one or more sensors satisfy the first specified criteria, displaying, on the terminal device, a payment processing interface; receiving an input through the payment processing interface; and executing a payment service based on the input.

Executing application without unlocking mobile device

Discloses a vector control method for a vehicle permanent magnet synchronous motor based on a DC power, which comprises a current closed-loop adjuster, a modulation index deviation calculator, a current command angle compensator, a current angle preset, a current command angle limit comparator, a current given amplitude compensator and a current given vector corrector. According to the present disclosure, the adjusting direction is always a flux-weakening direction, and instability caused by repeated adjustment will not occur; according to the present disclosure, by introducing the current for simultaneous correction, the voltage saturation-resistant pressure can be shared to the dq current, so that excessive output torque deviation caused by excessive adjustment of a single-axis current can be avoided; the traditional flux weakening target that the system is controlled without losing stability is ensured, and the accuracy of the torque is ensured.

Vector control method for vehicle permanent magnet synchronous motor based on DC power

Disclosed is a balloon catheter () with a drug coating. The balloon catheter comprises a pushing catheter (), at least one expandable first balloon () located at a distal end of the pushing catheter (), and a pre-expansion mechanism. The first balloon () is fixedly arranged on the pushing catheter (). The pre-expansion mechanism () comprises an expansion sleeve () and a connector (). The expansion sleeve () is used for housing the first balloon () before the first balloon () is not expanded and when same is pre-expanded. The connector () is connected to the expansion sleeve () and axially moves with respect to the pushing catheter () after the first balloon () is pre-expanded, so that the first balloon () is exposed outside the expansion sleeve (). The balloon catheter () with a drug coating can effectively pre-expand a lesion location and can also effectively prevent the loss of a balloon with a drug coating during a delivery process, and is simple in terms of a surgical operation process.

Drug-coated balloon catheter

Methods, systems, and apparatus, including computer programs encoded on computer storage media, for identity verification are provided. One of methods, implemented by a mobile terminal device, includes: obtaining a device identifier of a service device configured to provide a service based on a digital key; uploading the device identifier to a server in communication with the service device and the mobile terminal device and storing registration information of service devices, to cause the server to perform validity verification on the device identifier; in response to receiving a result indicating the device identifier is valid, collecting identity feature information of a user; uploading the identity feature information of the user to the server, to cause the server to perform identity verification on the user based on the identity feature information; and obtaining the digital key issued by the server in response to the identity verification being successful.

Identity verification method and device and electronic device

Chair

Chair back

An identity authentication procedure of a user is initiated and a plurality of virtual reality articles is displayed. Selection operation information of the user is determined for the plurality of virtual reality articles. Whether the selection operation information matches predefined standard selection operation information is determined. In response to determining that the selection operation information matches the predefined standard selection operation information, whether the identity authentication procedure of the user succeeds is determined.

Methods and apparatuses for identity authentication in virtual reality

Presenting information in an instant messaging (IM) application includes loading a tab configuration file comprising attribute information pertaining to a plurality of tabs in a main interface in the IM application, the attribute information comprising presented content information associated with the plurality of tabs; receiving a selection of one of a plurality of tabs in the main interface; retrieving attribute information that corresponds to the selected one of the plurality of tabs based at least on the tab configuration file information; and dynamically creating an extended window for the tab; and displaying the presented content information of the selected tab in the extended window.

Presenting information pertaining to a plurality of tabs in an instant messaging application

Growing community of inventors

Hangzhou, China

Jing Li