Nanjing Institute of Microinterface Technology Co., Ltd

Suzhou Centec Communications Co., Ltd.

State Grid Corporation of China

Sobute New Materials Co., Ltd

State Grid Chongqing Electric Power Co. Electric Power Research Institute

Envision Energy Co., Ltd

Bote New Materials Taizhou Co., Ltd.

Zhenjiang Sobute New Material Co., Ltd.

Lei Li

Zheng Zhou

Zhibing Zhang

Zhichuan He

Xingbang Hu

Chenfei Yao

Lei Zhang

Rui Wang

Jiaping Liu

Hua Li

Jie Zhou

Maocong Zhao

Haiqing Xu

Wei Gu

Dexiang Guo

Wengang Wang

Jianning Wang

Cheng Wang

Yang Hu

Yongtao Chen

Shengyi Zhu

Di Wu

Zhongyi Wen

Fangyuan Ding

Qingdong Zhu

Weijun Zhao

Quan Lu

Lining Hu

Xinyu Xu

Xiabing Li

Yujiang Wang

Huimin Qin

Ting Yao

Qian Tian

Hongwu She

Yang Chu

Haining Sun

Wenbin Wang

Hui Fang

Fan Mu

Hongji Xiang

Jingsen Zhou

Yanan Yu

Qiang Xiao

A modulation method for a direct current (DC) coupling converter with less DC voltage sensors includes: obtaining a voltage modulated wave v* and a current reference value i* of the DC coupling converter; performing determination on the voltage modulated wave v* and the current reference value i*, and determining a switch state of the DC coupling converter based on a result of the determination; and when a DC voltage sensor of an electrolytic capacitor of an intermediate power module is removed, modulating a DC voltage sensor based on the voltage modulated wave v* and a difference between DC voltages on electrolytic capacitors of the other two power modules. When the intermediate DC-side voltage sensor is removed, DC voltages of various modules of a converter system of a DC coupling power unit can still be balanced, and quality of a grid-connected current is not affected by a fault.

Modulation method for direct current (DC) coupling converter with less dc voltage sensors

A reaction system for preparing soda ash and a reaction method are provided in the present invention. The reaction system includes: a carbonization tower, a reaction crystallization tower, and a first micro-interface unit. A material outlet is arranged at the bottom of the carbonization tower, and the material outlet is connected to the reaction crystallization tower. The first micro-interface unit includes a first micro-interface generator and a second micro-interface generator, the first micro-interface generator is arranged below the liquid level in the carbonization tower, the second micro-interface generator is arranged above the first micro-interface generator, and a connecting pipe is arranged between the second micro-interface generator and the first micro-interface generator. The reaction system for preparing soda ash may effectively improve the reaction efficiency of raw materials and the utilization rate of carbon dioxide while reducing the input pressure of carbon dioxide, thereby effectively reducing energy consumption.

Reaction system for preparing soda ash

Provided in the present invention is an iridium-based catalyst, which is characterized in that the chemical structural formula of the iridium-based catalyst is:

Method for olefin hydroformylation using iridium-based catalyst

The present invention discloses a method for catalyzing olefin carbonylation, including the following steps: using cyclic alkylcarbene iridium as a catalyst and an olefin as a raw material to carry out carbonylation reaction to generate aldehydes, wherein a structural formula of the cyclic alkylcarbene iridium is as follows:

Method for catalyzing olefin carbonylation

An automatic charging vehicle, a method for operating the automatic charging vehicle, and an automatic charging system. The automatic charging vehicle includes: an automatic traveling module, which is configured to move, according to a route between the automatic charging vehicle and a device to be charged, to the device to be charged; a power module, which is configured to store and provide electric energy; and an automatic docking and separating device, which is configured to execute docking and separating between a first connector and a second connector capable of being in electrical contact with the first connector, the first connector and the second connector being used for transmitting electric energy.

Automatic charging vehicle and its operating method and automatic charging system

The present disclosure provides a bandwidth testing method and apparatus, and a storage medium. The method includes: sending, by a sending end, service messages and operation administration and maintenance (OAM) messages, wherein a bandwidth of the OAM messages is a maximum bandwidth of the service messages; discarding, by the sending end, partial OAM messages, wherein the partial OAM messages are a part of the OAM messages which makes a sum of bandwidths of the service messages and the OAM messages exceed a maximum bandwidth; acquiring, by the sending end, a total bit number of the partial OAM messages that are discarded and time for sending the service messages and the OAM messages; and determining, a bandwidth occupied by the service messages according to the total bit number and the time.

Bandwidth testing method and apparatus, and storage medium

Provided is a Bidirectional Forwarding Detection (BFD) parameter negotiation method, apparatus and chip. The method includes that: a first apparatus sends a BFD negotiation packet to a second apparatus, the BFD negotiation packet carrying a first verification value; the first apparatus receives a BFD negotiation response packet returned by the second apparatus, the BFD negotiation response packet carrying a second verification value; the first apparatus checks whether the first verification value and the second verification value match each other, and determines whether negotiation of BFD parameters is an erroneous negotiation according to a checking result.

Bidirectional forwarding detection (BFD) parameter negotiation method, apparatus and chip

Disclosed are a multifunctional cement hydration heat control material and a manufacturing method therefor. The cement hydration heat control material in is a comb polymer having three side chain structures, the three side chain structures are respectively a carboxyl group, a sugar alcohol group, and a polyether structure, and the main chain of the polymer is a carbon chain structure formed by free-radical polymerization of a double bond in a double bond compound monomer. The multifunctional cement hydration heat control material can achieve integration of cement hydration heat control performance, water reduction performance, and shrinkage reduction performance in a same molecule, can achieve control focusing on a performance by means of structural adjustment, does not need multi-component compounding during use, and is more convenient. The control material is non-toxic and water-soluble, can be made to have an appropriate concentration, and is convenient to use.

Multifunctional cement hydration heat control material and manufacturing method therefor

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Jiangsu, China

Lei Li