Tinavi Medical Technologies Co., Ltd.

Beijing Zhong Ke San Huan Hi-Tech Co., Ltd.

General Electric Company

Chinese Academy of Sciences

Ge Precision Healthcare LLC

Beijing Didi Infinity Technology and Development Co., Ltd.

Sanvac (Beijing) Magnetics Co., Ltd.

Baidu.com, Inc.

Zhan Wang

Jundong Li

Fei Du

Ziang Xu

Yu Zhang

Jing Li

Hao Tang

Chuang Wang

Miao Zhang

Wei Zhu

Samuel Lee Alder

Jin Xu

Jianguo Liu

Dan Guo

Hongbo Zhu

Mingtao Liu

Jingqiang Lin

Boping Hu

Xiaolei Rao

Jiwu Jing

Bin Fang

Guoan Chen

Zhiqiang Zhou

Yugang Zhao

E Niu

Haojie Wang

Mingming Deng

Chunyan Liu

ZiZheng Liu

Niping Zhang

Yixin Zhou

Changliang Cai

Kehua Sheng

Yanhong Li

Limin Zhou

Da Sheng

Congwu Li

Dejin Yang

Bingyu Li

Zhian Chen

Xuanzhang Ye

Jie Yuan

Wenkai Yang

Tiean Lei

Jiaqi Han

Zongxiang Liu

Luning Xia

Qiongqiao Wang

Provided in the present application are a C-arm imaging system and a tube assembly mounting method. The C-arm imaging system includes a C-arm, a tube assembly, a detector assembly, and a rotation assembly. The C-arm includes an inner surface and an outer surface disposed opposite to each other. The tube assembly is located at a first end of the C-arm, and is mounted on the inner surface of the C-arm. The detector assembly is located at a second end of the C-arm opposite to the first end. The rotation assembly is mounted on the outer surface of the C-arm. The C-arm is movable relative to the rotation assembly, and an outer surface opposite to an inner surface on which the tube assembly is located is slidable relative to the rotation assembly.

C-arm imaging system and tube assembly mounting method

The present application provides a total knee arthroplasty robot auxiliary system, a control method, electronic device and a computer readable medium. The auxiliary system comprises: a preoperative planning system configured to formulate a preoperative plan, preoperative plan data including a knee joint image; an intraoperative planning system configured to formulate an intraoperative plan, wherein the knee joint image in the preoperative plan and a knee joint surface contour of the patient determined in an operation are subjected to image registration, knee joint dynamic spacing force line data at a continuous flexion-extension angle is acquired, a dynamic spacing force line data graph is visually displayed, and a prosthesis plan is adjusted according to the visual display of the dynamic spacing force line data graph to obtain the intraoperative plan; and an executing system, wherein a bone-cutting guide mounted at an operating end of a mechanical arm of a surgical robot is guided to be located in a planned predetermined position according to the intraoperative plan, and the bone-cutting guide is configured to locate a bone-cutting saw.

Total knee arthroplasty robot auxiliary system, control method and electronic device

An alloy cast strip preparation method includes a melting process and a casting cooling process. The melting process includes controlling a power of an induction melting furnace to perform a cyclic heat treatment to completely melt an alloy raw material before a surface temperature of a melt obtained by melting the alloy raw material is raised to 1300° C., and, after the alloy raw material is melted, adjusting the power of the induction melting furnace to stabilize the surface temperature of the melt at a temperature in a range from 1400° C. to 1500° C. The casting cooling process includes performing casting cooling on the melt arranged on a surface of a rotary cooling roll to obtain an alloy cast strip while controlling a surface linear velocity of the rotary cooling roll to be from 1.5 m/s to 2.25 m/s.

Fine grain rare earth alloy cast strip, preparation method thereof, and a rotary cooling roll device

Provided are an intraoperative planning adjustment method, apparatus and device for TKA (Total Knee Arthroplasty) and a computer-readable medium. The method comprises: importing preoperative planning data; performing image registration on preoperative planning images and the surface contour of a knee joint of a surgical object; acquiring the dynamic spacing force line data of the knee joint at a continuous flexion-extension angle; visually displaying the dynamic spacing force line data graph; and adjusting prosthesis planning according to the visual display of the dynamic spacing force line data. By calculating information such as the joint gap and the force line angle of the lower limb at the continuous flexion-extension angle in the operation, the method provides a comprehensive adjustment information source in the operation for a surgeon, and therefore a better operation planning is obtained.

TKA intraoperative planning adjustment method, apparatus and device for TKA

A NdFeB rare earth magnet includes a main phase and a grain boundary phase including a white grain boundary phase and a gray grain boundary phase. In a microstructure observation area of the rare earth magnet, an area of the white grain accounts for 1˜3% of a total area of the microstructure observation area, and an area of the gray grain boundary phase accounts for 2˜10% of the total area of the microstructure observation area.

Rare earth magnet and preparation method thereof

Embodiments of the disclosure provide methods and systems for processing transportation requests. The method can include receiving, from a terminal device, a transportation request in a district. The method can also include determining a first queue associated with a queuing zone for placing the transportation request, the transportation request having a first estimated waiting time before being processed in the first queue. The method can further include determining a second queue associated with the queuing zone, the transportation request having a second estimated waiting time before being processed in the second queue, wherein the second estimated waiting time is shorter than the first estimated waiting time. The method can also include providing to the terminal device information related to the second queue.

Method and system for processing transportation requests

Compact mobile C arm system

The present invention discloses a method and a system for checking revocation status of digital certificates in a virtualization environment. The method includes: 1) Setting up multiple virtual machines in a host computer; setting up a certificate revocation list manager within the virtual machine monitor of the host computer; 2) The certificates relying party in the virtual machines sends a service request for checking certificate revocation status to the certificate revocation list manager; 3) The certificate revocation list manager searches locally for the CRL file corresponding to the service request for checking certificate revocation status: a) If such a corresponding CRL file exists, the CRL file is returned to the certificate relying party in the virtual machines; or, the certificate revocation list manager checks whether the corresponding certificate serial number exists in the CRL file, then returns the result; b) if the corresponding CRL file does not exist, the corresponding CRL file is downloaded and verified according to the configuration file; then the CRL file is returned to the certificate relying party in the virtual machines; or, the certificate revocation list manager checks whether the corresponding certificate serial number exists in the CRL file, then returns the result. The present invention greatly improves the efficiency of checking revocation status of certificates.

Method and system for checking revocation status of digital certificates in a virtualization environment

Method and system for retrieving advertisement information. Information characterizing a user's past search behavior is utilized in creating index data that associate individual users to advertisements. When a search request from a user is received, the index data are utilized to identify one or more advertisements with respect to the received user's search request. Such identified advertisements match the user's past search behavior.

Method and system for retrieving advertisement information

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Beijing, China

Zhan Wang