Tsinghua University

Nuctech Company Limited

Chinese Academy of Sciences

Chinese Academy of Medical Sciences

Xiangya Hospital of Central South University

Cnooc Gas & Power Group

Beijing Institute of Spacecraft Environment Engineering

Tao Song

Ying Li

Jianmin Li

Yuanjing Li

Yulan Li

Xin Li

Li Xiao

Chao Zhang

Bing Liu

Yu Cao

Yu Hu

Di Wu

Yang Yang

Liang Tian

Mingliang Li

Yucheng Wu

Jingang Liu

Wenwu Zhang

Jing Tian

Yutian Zheng

Haidong Li

Canhua Jiang

Tianrun Zhang

Shiyong Yang

Chunhai Guo

Ye Liang

Ai Jian

Guokun Zuo

Jiaji Zhang

Ningbei Yin

Cong Xiao

Yongqian Wang

Shouhui Huang

Binzhu Wang

Nan Xing

Jianhong Wu

Yonghao Liu

Dongyu An

Yujie Ren

Shuhong Xiang

Jingyu Tong

A stackable quick-release apparatus and a surgical navigation system are provided. The stackable quick-release apparatus is configured to connect two adjacent cascade tubes of the surgical navigation system. The stackable quick-release apparatus includes a connection rod, an abutment rod, and an elastic member. The connection rod is arranged at an end of one of the cascade tubes, and the abutment rod is arranged at an end of the other of the cascade tubes. A mounting groove is provided on an end surface of the connection rod, the elastic member is configured to be mounted on an inner wall of the mounting groove, and the abutment rod on one of the cascade tubes is configured to be inserted into the mounting groove of the connection rod on the other of the cascade tubes and abut against the elastic member.

Stackable quick-release apparatus and surgical navigation system

A method for evaluating performance of a natural gas analysis system includes obtaining components of a natural gas analysis system as well as the maximum allowable error and the maximum allowable deviation of a calorific value of each of the components. The method includes determining components and uncertainties of a standard gas mixture; obtaining a final peak area of each of the components in each group of standard gas mixture. The method includes obtaining calibration functions of the natural gas analysis system and analytical functions of respective components. The method includes obtaining an uncertainty and a calorific value uncertainty of each of the components. The method includes judging whether the evaluation result from the natural gas analysis system to be evaluated is qualified, and providing a performance evaluation conclusion for the natural gas analysis system.

Performance evaluation method for natural gas analysis system

The technical problem to be solved by the present invention is to design a cosmetic surgical method for presenting a deeper or longer philtrum at the lip by adjusting the muscle flaps at the lips and nose. The theoretical basis of this surgical method is a 'theory of labionasal muscle tension thread group' summarized from a series of studies with respect to anatomy, biomechanics and clinical surgical verification. According to this theory, the labionasal muscle tension structure is reconstructed by surgical adjustment of the position and direction of the muscle flaps, so as to produce an effect of changing the profile of the 'philtrum' and to improve or remodel the &#x201c;philtrum&#x201d; as an aesthetic labial structure.

Surgical method for reconstructing labionasal muscle tension structure

A quick vehicle check system comprises a radiation source which produces a first X ray with a first dose and a second X ray with a second dose, wherein the first dose is smaller than the second dose, and the first X ray is used for checking a first part of a checked vehicle and the second X ray is used for checking a second part of the checked vehicle; a first sensor for detecting a set position of the checked vehicle; a second sensor for detecting a passing distance of the checked vehicle; and a control unit coupled with the first sensor and the second sensor, which receives the set position of the checked vehicle from the first sensor and receives the passing distance of the checked vehicle from the second sensor.

Quick vehicle check system and method adopting multi-dose regional scanning

The present invention discloses a vehicle inspection system, comprising: a radiation source;

Vehicle inspection system

The present invention discloses A vehicle dragging system, comprising a first dragging means and a second dragging means, which are sequentially arranged along a vehicle dragging direction, wherein in the vehicle dragging direction, the first dragging means is arranged at the upstream of the second dragging means, and a separating section is arranged between the first dragging means and the second dragging means, so that the first dragging means is separated from the second dragging means by a preset distance in the vehicle dragging direction, wherein the first dragging means comprises a first supporting plate, a first elongated traction element and a first pushing element connected with the first elongated traction element, and the first pushing element is adapted to move around the first supporting plate for pushing wheels to move along the first supporting plate, in order to drive a vehicle to advance; the second dragging means comprises a second supporting plate, a second elongated traction element and a second pushing element connected with the second elongated traction element, and the second pushing element is adapted to move along the second supporting plate for pushing wheels to move along the second supporting plate, in order to drive the vehicle to advance.

Vehicle dragging system and vehicle inspection system

The present invention discloses a phosphorus-silicon synergistic flame retardant and the preparation method and use thereof. The phosphorus-silicon synergistic flame retardant provided by the present invention has a structural general formula shown as formula I. A new type of compound containing phosphorus and silicon is prepared by the present invention using the cheap organic boron catalyst, and employing the addition reaction of diphenyl phosphine oxide and derivatives thereof with silicone containing carbon-carbon double bond. Such compounds have the properties of hydrolytic resistance, easy purification, and low synthesis cost, etc. Phosphorus and silicon elements in the molecular structures of such compounds both can act as the flame retardants solely, and meantime can work synergistically, thereby enduing the common polymeric materials with the excellent flame retardant property. 

Phosphorus&#x2014;silicon synergistic flame retardants and the preparation method and use thereof

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Beijing, China

Tao Song