Other

Samsung Electronics Co., Ltd.

China University of Petroleum

Beijing Hanmi Pharmaceutical Co., Ltd.

Beijing Municipal Research Institute of Environmental Protection

Lina Zhang

Ning Li

Yong Yang

Haiyan Liu

Maengsup Kim

Guohua Liu

Juan Du

Jiawang Liu

Yaping Yang

Nanmeng Song

Lin Wei Jiang

Xiaojun Bao

Xue Wen

Zhenlei Li

Kun Xu

Liqiang Zhao

Wenchu Xiao

Xiafu Zhang

Xu Zhang

Shubao Hu

Shenjian Wang

Xiaoying Zhu

Tianxiang Xia

Mingyue Gu

Mengmeng Ning

Chunguang Zhan

Yuanzhao Jia

An anti-PD-1/anti-VEGF natural antibody structure-like heterodimeric form bispecific antibody and preparation thereof. Provided are a highly stable, heterodimeric form anti-PD-1/anti-VEGF bispecific antibody having natural IgG characteristics and free of mismatched heavy and light chains and preparation method for the antibody. The bispecific antibody is capable of simultaneously binding with two target molecules and provides improved efficacy in treating a complicated disease.

Anti-PD-1/anti-VEGF natural antibody structure like heterodimeric form bispecific antibody and preparation thereof

Provided is a portable XRF data screening method for heavy metal contaminated soil, relating to the technical field of heavy metal contamination test. The method includes the following steps: (1) laboratory test; (2) XRF test; and (3) calculation of a recheck interval: dividing test data into four areas by a contaminant screening value Xas a horizontal line and a correlation-derived site screening value as a vertical line to calculate the recheck interval. The method is simple and efficient, and is beneficial to saving investigation costs and shortening a project cycle.

Portable XRF data screening method for heavy metal contaminated soil

An electronic device is provided. The electronic device includes a memory storing instructions, and at least one processor configured to execute the instructions to obtain a request of a user which is input for a provider, and provide a result obtained by transmitting to the provider at least one simulated request of at least one simulated user corresponding to the request.

Communication via simulated user

Provided are a phase transition material fluid and a proppant formed therefrom, wherein the components for preparing the phase transition material fluid comprise in percentages by mass: a supramolecular building block 10 to 60 wt %, a supramolecular functional unit 20 to 50 wt %, a dispersant 0.1 to 2 wt %, an inorganic co-builder 0.1 to 1 wt %, an initiator 0.1 to 1 wt %, the balance being a solvent. The supramolecular building block comprises a melamine-based substance and/or a triazine-based substance; the supramolecular functional unit comprises a dicyclopentadiene resin; and the dispersant includes a hydroxyl-bearing polysaccharide substance and a surfactant. After the phase transition material fluid enters the reservoir, it may form a solid substance to prop the fracture under the action of supramolecular chemistry and physics.

Phase transition material fluid and proppant formed therefrom

The present invention relates to a composite catalytic material of SAPO-34/ZSM-5@kaolin microspheres and its preparation and use, the method comprises the steps of: 1) processing kaolin into kaolin microspheres, and baking them to obtain activated kaolin microspheres; 2) mixing the activated kaolin microspheres obtained in step 1), water, a phosphorus source, and a template agent to prepare a gel; 3) mixing the gel obtained in step 2) and a ZSM-5 molecular sieve, and carrying out aging, crystallization, and separation to obtain a composite material of SAPO-34/ZSM-5@kaolin; 4) subjecting the composite material obtained in step 3) to ammonium exchange treatment and baking, to obtain the composite catalytic material of SAPO-34/ZSM-5@kaolin microspheres. The present invention not only greatly shortens the preparation route for the catalyst and reduces the cost of catalyst preparation, but also allows adjustment of the fractions of SAPO-34 and ZSM-5 molecular sieves in the composite material by adjustment of the synthesis conditions.

SAPO-34/ZSM-5@ kaolin microsphere composite catalytic material and its preparation and use

This invention is a loudspeaker that consists of some vibratory membranes and magnets. Every vibratory membrane is a part of a soft conductive tape and is put in a magnetic field. When the membranes conduct audio current, they vibrate air directly with their surfaces, and produce sound waves. This loudspeaker can be made into various shapes. It has overcome the defect of sound distortion caused by the diaphragm deformations in regular loudspeakers. Its distortion is lower, its transient response is excellent, and its voice quality and acoustic effects are admirable.

Chord-like vibration loudspeaker

Growing community of inventors

Beijing, China

Lina Zhang