Beijing Research Institute of Chemical Industry, China Petroleum & Chemical Corporation

China Petroleum Chemical Corporation

China Petroleum & Chemical Corporation

The Ncs Testing Technology Co., Ltd.

Tinavi Medical Technologies Co., Ltd.

China Fortune Way Company

Nanjing Redwood Fine Chemical Co., Ltd.

Hongwei Shi

Kai Xu

Jinliang Qiao

Meng Xu

Shijun Zhang

Hua Yin

Jingbo Shao

Meifang Guo

Dali Gao

Yiqing Bai

Mu Dong

Ying Li

Jia Liu

Qi Zhang

Bo Chen

Qiang Li

Ying Zhao

Xiaohong Zhang

Peng Guo

Xiang Wang

Ye Tian

Ya Wang

Wen Wen Yang

Jianming Gao

Zhihai Song

Gang Li

Haizhou Wang

Hongbin Zhang

Ling Liu

Xuejing Shen

Chuanlun Cai

Guicun Qi

Jinmei Lai

Binghai Li

Liangshi Wang

Yongqiang Zhao

Luqiang Yu

Lili Liu

Liying Zhang

Peng Kang

Dehui Kong

Liqiu Chu

Mingfu Lyu

Hui Quan

Jianye Liu

Hao Zou

Baige Chou

Yun Lyu

Yihui Xu

Yaohui Xu

Honghong Huang

Yixin Zhou

Qingquan Yang

Jianjun Yin

Yujing Tang

Yuexin Cong

Qianmin Zhang

Yanling Sun

Peijun Song

Guoxun Zhao

Changjin Li

Qi Xin

Dejin Yang

Xiaopeng Li

Ruxian Li

Fahao Wu

Yangzhe Gao

Zhifa Yuan

Yueming Ren

Mingfu Lv

Tao Cai

Yigang Tan

Jinqi He

Meijie Li

Yun Lv

Feipeng Cui

Feifei Guo

Xiaoyong Gao

Changhui Sun

Guang Li

A thermoplastic composite material has an inner layer material and at least one layer of outer layer material. The inner layer material is a core layer that contains fiber bundles, a first thermoplastic resin and a first auxiliary agent; and the at least one layer of outer layer material wraps the core layer and is a resin layer comprising a second thermoplastic resin and an optional second auxiliary agent. The fiber bundles extend continuously from one end of the core layer to the opposite end thereof. The inner layer-outer layer composite structure improves the processing performance of the thermoplastic composite material and the lubricity between fibers and resin matrixes during injection molding, and improves the fluidity of the fibers in a resin matrix melt.

Thermoplastic composite material, preparation method therefor and use thereof

A surgical upper computer for a total knee arthroplasty, and a total knee arthroplasty system, in the field of surgical devices. The surgical upper computer includes a processor, and a memory storing which, when executed, enable the processor to execute operating modes of the surgical upper computer, where the operating modes include: exhibiting information to be input, the information to be input including a dynamic change range of a joint flexion angle, and a relationship between the joint flexion angle and a pushing force applied or a gap formed between a femur and a tibia; applying a pushing force during a process of dynamically adjusting the joint flexion angle, and acquiring corresponding relationship data between the pushing force and the gap; and visually exhibiting the corresponding relationship data. Accordingly, the force and gap between soft tissues in the total knee arthroplasty can be acquired and exhibited in a reasonable manner.

Surgical upper computer for total knee arthroplasty, and total knee arthroplasty system

An adaptive characteristic spectral line screening method and system based on atomic emission spectrum are provided, the method includes: using a set characteristic screening optimization method to perform a plurality of optimization rounds of characteristic screening, obtaining an initialized spectral dataset of each round of the characteristic screening and initialized characteristic population genes; obtaining an optimal characteristic population gene of each round by a set analysis method, a fitness function, and an iteration of a genetic algorithm; obtaining an optimized characteristic spectral information set when the plurality of optimization rounds reach set optimization rounds; performing combination statistics and discriminant analyses on the optimized characteristic spectral information set to complete an adaptive characteristic spectral line screening. The disclosure can efficiently and automatically screen out the characteristic spectral lines that meet the analysis requirements in the complex atomic emission spectrum, thus ensuring the effectiveness and accuracy of screening the characteristic spectral lines.

Adaptive characteristic spectral line screening method and system based on atomic emission spectrum

Provided is a method for biocatalytic synthesis of Sitagliptin and intermediates thereof, in particular, provided are compounds of Formula (I) and Formula (II), or pharmaceutically acceptable salts thereof, a polypeptide capable of catalyzing conversion of a compound of Formula (I) to a compound of Formula (II), a nucleic acid encoding the polypeptide, a vector and a cell comprising the nucleic acid. In addition, also provided are a method for producing a compound of Formula (II) and Sitagliptin by using the polypeptide and the compound of Formula (I), and a method for preparing the polypeptide.

Method for biocatalytic synthesis of Sitagliptin and intermediate thereof

A polyethylene composition comprising an ethylene/&#x3b1;-olefin copolymerized linear low density polyethylene, wherein the polyethylene composition has a Mw of from 100,000 g/mol to 200,000 g/mol, a Mw/Mn of from 4.0 to 9.0, a Mz/Mw of from 4.0 to 7.0, and a Mz+1/Mw of from 4.5 to 13.5, is provided. A film formed of the polyethylene composition is also provided.

Polyethylene compositions and films formed therefrom

A rubber composition, preparation method and vulcanized rubber thereof are provided. The rubber composition comprises uncrosslinked rubber and rubber particles having crosslinked structure dispersed therein, wherein the rubber particles having crosslinked structure are synthetic rubber particles and/or natural rubber particles with an average particle size of 20 to 500 nm and a gel content of 60% by weight or higher, and the uncrosslinked rubber is styrene-butadiene rubber, and wherein the weight ratio of the rubber particles having crosslinked structure to the uncrosslinked rubber is 1:99-20:80.

Rubber composition, preparation method and vulcanized rubber thereof

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Beijing, China

Hongwei Shi