Beijing University of Posts and Telecommunications

Beijing Institute of Clothing Technology

Gang Cao

Xiangming Wen

Zhaoming Lu

Dongfeng Li

Zhihong He

Lingchao Guo

Jirui Zhang

Tao Lei

Jiquan Fu

A sensing recognition method and device based on wireless communication signals are disclosed. The method comprises the steps of obtaining channel state information from a received wireless communication signal; extracting a channel state feature value from the channel state information; and outputting a sensing result mapped with the channel state feature value according to the channel state feature value. The disclosed method and device can improve the accuracy of sensing recognition and achieve better recognition effect.

Sensing recognition method and device based on wireless communication signals

A new process for the preparation of ethylbenzene by alkylation of benzene with dilute ethylene contained in dry gas by catalytic distillation and the apparatus used therefor are disclosed. The new process includes the pretreatment of raw refinery dry gas, the gas-liquid-solid three phases alkylation of benzene with the ethylene over a solid catalyst in a catalytic distillation tower, and concurring course of distillation separation of product mixture. The performance, type, and loading way of catalyst and distillation packing should satisfy the given requirements. The invention has many advantages such as simple apparatus structure and ease in operation, moderate operation conditions, large catalyst capacity, high product quality, long catalyst lifetime, etc.

Process and apparatus for preparation of ethylbenzene by alkylation of benzene with dilute ethylene contained in dry gas by catalytic distillation

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Beijing, China

Gang Cao