Saudi Arabian Oil Company

International Business Machines Corporation

Semiconductor Manufacturing International (shanghai) Corporation

Boe Technology Group Co., Ltd.

Chinese Academy of Sciences

Ordos Yuansheng Optoelectronics Co., Ltd.

Peking University

Petrochina Company Limited

China Agricultural University

Banma Zhixing Network (hongkong) Co., Limited

National Institute of Metrology, China

Research Institute of Highway Ministry of Transport

Qingdao Yun Zhong Networks Limited

Shell Internationale Research Maatschappij, B.v.

Xuan Zhang

Ming Han

Jinxun Wang

Ning Duan

Min Gong

Junchi Yan

Stephen Mingyu Chu

Haiyang Zhang

Limin Xu

Yu Zhang

Lei Li

Qiang Zhang

Yang Yang

Liang Wang

Peng Chen

Tao Yang

Rui Zhang

Wei Song

Xi Ning Wang

Lin Liu

Yi Qin Yu

Ling Tong

Mohammed Abdullah Bataweel

Chunming Xu

Zhao Liu

Zhichang Liu

Xiufeng Han

Tan Jiang

Bo Ma

Haiyan Liu

Xianghai Meng

Hongxia Yang

Kang Chen

Yong Yao

Yang Che

Tianyu Xu

Jose I Rueda

Xue Xiang Cui

Dongqing Cao

Jian Hou

Yonghong Zhang

Chongbang Xu

Yaorong Liu

Caihua Wan

Sen Hu

Ziyuan Qi

Fusen Xiao

Yirong Zhang

Zenghong Li

Jiancheng Wang

Jianwei Huang

Xiaojing Gao

Xiaole Zhang

Jiansheng Li

Wenkang Chen

Jianbo Cheng

Chuanfeng Liu

Qi Ran

Zhijun Yang

Dehong Li

Yilun Xu

Qi Liao

Han Liang

Xiaomin Lu

Sungho Kim

Lichun Cai

Guangrong Zhang

Wenbing Dai

Linjian Wan

Shirong Zhang

Youlin Qin

Xiaohong Yang

Siming Guo

Peter Anton August Klusener

A nuclide identification method, a system and an electronic device are provided, which relates to the field of nuclide identification. According to statistical characteristics, a background probability density function and a Compton probability density function in a ROI are determined. An energy Bayesian factor and a time Bayesian factor are determined based on energy and time interval information in a sequence of the nuclear detection events obtained by measurement. By combining the two factors, Compton plateau can be effectively identified and distinguished.

Nuclide identification method, system and electronic device

Provided is a quaternary ammonium surfmer and copolymers thereof. The surfmer may have the following general formula (I): N—RRRR(X), where: Rand Rmay independently be H or a C-Calkyl, Rmay be a Camidoalkyl group, Rmay be a C-Calkyl having a terminal olefin double bond group, and X may be a halogen. Further provided is a method for synthesizing the quaternary ammonium surfmer, copolymers thereof, and a method for recovering hydrocarbons from a subterranean formation that may include injecting a treatment fluid comprising the quaternary ammonium surfmer or copolymers thereof into the subterranean formation.

Synthesis of a cationic surfmer and its copolymers for enhanced oil recovery

Compositions that include cationic surfactants and methods of synthesizing compositions that include cationic surfactants. The surfactants include a quaternary amine and a saturated or unsaturated alkyl chain with 4 to 28 carbons. The surfactants can be generated by reacting a fatty acid modified with an amino alkyl group and an epihalohydrin in the presence of a base. The cationic surfactants can be generated by reacting a fatty acid modified with an amino alkyl group, an epihalohydrin, and a carboxylic acid. The cationic surfactants can be generated by reacting a carboxylic acid, an epihalohydrin, and a catalyst to afford a halo-substituted alkyl ester, followed by reacting the halo-substituted alky ester with a fatty acid modified with an amino alkyl group.

Preparation of cationic surfactants

Provided herein are KRN2 gene controlling kernel row number in plant, molecular markers closely linked to KRN2 and their application in molecular breeding.

Maize geneand uses thereof

Copolymer compositions and methods of making copolymer compositions with enhanced stability in high temperature and high salinity environments. The copolymers include hydrophobic monomers and sulfonated monomers. The sulfonated monomers can include 2-acrylamido-2-methylpropane sulfonic acid and allyl sulfonate. The sulfonated monomers increase the stability of the polymers in harsh conditions, and in high temperature, high salinity environments. The sulfonated monomers also reduce or prevent the hydrolysis of acrylamide groups, and therefore enhance the stability of the copolymer. The copolymer compositions can be made with free radical polymerization and an initiation complex.

Sulfonated polymer

A surfactant composition is provided. The composition includes chemical structure represented by Formula (1): where Rrepresents a hydrocarbon group, a substituted hydrocarbon group, an alkyl ester group, or an alkyl amine having from 4 to 28 carbon atoms, and Rand Rrepresent hydrocarbon groups having from 1 to 5 carbon atoms. Also provided is a composition including a brine comprising a total salinity of at least 20,000 mg/L and the chemical structure shown in Formula (1). Methods of making a composition including the chemical structure represented by Formula (1) are also provided.

Composition and method of making cationic surfactants with two quaternary ammonium head groups

A composition includes an ionic liquid monomer having the following structure: where n is an integer from 1 to 5 and the ionic liquid monomer has a melting point less than 100&#xb0; C. A method of making the ionic liquid includes providing a mixture comprising a sulfonic acid and a diamine in a solvent, and maintaining the mixture at a temperature ranging from 10 to 80&#xb0; C. for a time ranging from 1 to 10 hours to form an ionic liquid monomer having a melting point less than 100&#xb0; C. A method of making a polymer from the ionic liquid monomer is also provided.

Ionic liquid monomer for synthesis of friction reducer and methods thereof

Provided is a quaternary ammonium surfmer, that may have the following general formula (I): N&#x2014;RRRR(X), where: Rand Rmay independently be H or a C-Calkyl, Rmay be a Camidoalkyl group, Rmay be a C-Calkyl having a terminal olefin double bond group, and X may be a halogen. Further provided is a method for synthesizing the quaternary ammonium surfmer and a method for recovering hydrocarbons from a subterranean formation that may include injecting a treatment fluid comprising the quaternary ammonium surfmer into the subterranean formation.

Provided is a method for analyzing the expansive stress and expansive strain of tunnel surrounding rock, including: (1) determining the surrounding rock state of the tunnel surrounding rock before expansion and the surrounding rock state after expansion; (2) according to the determined state of the surrounding rock, determining the expansive stress and expansive strain of the tunnel surrounding rock before expansion, and determining the expansive stress and expansive strain of the tunnel surrounding rock after expansion; (3) according to the surrounding rock state of the tunnel surrounding rock after expansion, determining the expansive deformation radius of the tunnel surrounding rock, so as to determine the expansive deformation displacement of the tunnel surrounding rock.

Method for analyzing the expansive stress and expansive strain of tunnel surrounding rock

Displaying recommendation information is disclosed including determining, based on touch hot zones of a user, a target display position for recommended information, the touch hot zones of the user being obtained based on historical touch behavior data of the user, and displaying the recommended information in the target display position.

Method and system for displaying recommendation information

The present disclosure discloses a method and an apparatus for processing seismic data, and belongs to the field of geological surveys. The method comprises: stacking seismic trace gathers in a predetermined range among S seismic trace gathers after a Normal Move Out (NMO) correction processing to obtain a model trace, S being an integer; calculating a correlation coefficient of each seismic trace gather with the model trace, and selecting a K-th seismic trace gather with a maximum correlation coefficient; calculating an optimum point of each seismic trace gather from the K-th seismic trace gather to two sides orderly; and performing a residual NMO correction of the seismic trace gathers according to the optimum points.

Method and apparatus for processing seismic data

The present invention relates to a spin logic device and an electronic equipment comprising the same. A spin logic device may include a Spin Hall effect (SHE) layer formed of a conductive material having Spin Hall effect and configured to receive a first logic input current and a second logic input current, the first logic input current and the second logic input current both being an in-plane current, a magnetic tunnel junction provided on the SHE layer comprising a free magnetic layer in contact with the SHE layer, a barrier layer disposed on the free magnetic layer, and a reference magnetic layer disposed on the barrier layer, and a current wiring in connection to the reference magnetic layer side of the magnetic tunnel junction, the current wiring being in cooperation with the SHE layer to apply a read current passing through the magnetic tunnel junction therebetween.

Spin logic device and electronic equipment including same

Growing community of inventors

Beijing, China

Xuan Zhang