Beijing University of Chemical Tehcnology

Triangle Tyre Co. Ltd.

Beijing Research Center for Information Technology in Agriculture

Hua Yan

Weimin Yang

Zhiwei Jiao

Xiaoying Liu

Chunjiang Zhao

Jinyun Zhang

Yuhua Ding

Tao Zhang

Xiaodong Yang

Hao Yang

Jing Tan

Feng Bao

Jinguang Zhong

Hongbo Chen

Haikuan Feng

Guijun Yang

Wengang Zheng

Daming Dong

Haiyang Yu

Ying An

Shirui Zhang

Xingang Xu

Xiaohe Gu

Haoyi Li

Xiangfeng Zhong

Dongsheng Liu

Pengcheng Xie

Xiande Zhao

Yumei Ding

Changjun Shen

Wenbiao Wu

A melt differential electrospinning device and process, the melt differential electrospinning device comprising a spinning nozzle (), a fiber receiving device (), a first high-voltage electrostatic generator (), a second high-voltage electrostatic generator (), a grounding electrode (), and n layers of electrode plates of a first electrode plate () and a second electrode plate (), n being an integer greater than or equal to 2; the spinning nozzle comprises a splitter plate (), a nut (), a spring spacer (), an air pipe positioning pin (), a screw (), a nozzle body positioning pin (), a nozzle body (), an air pipe (), a heating device (), a temperature sensor () and an inner cone nozzle (). The melt differential electrospinning process employs the melt differential electrospinning device, such that the polymer melt, under the effect of a wind field and an electric field, is uniformly distributed into a circle of dozens of Taylor cones along the conical surface end, and is further formed into dozens of jet flows and refined into nanofibers; and a plurality of melt differential electrospinning nozzles are installed below the splitter plate, thus realizing large-scale production of nanofibers, with a simple structure, and easy machining and assembly of components.

Melt differential electrospinning device and process

Related are a drone-mounted imaging hyperspectral geometric correction method and a system, comprising: collecting position attitude information of a current drone low-precision POS sensor in real time; based on the position attitude information, parsing precise photography center position attitude information of a digital photograph, and generating a DEM of an area covered by the photograph; based on the precise photography center position attitude information, performing correction on position attitude data corresponding to multiple imaging hyperspectral scan lines between photography centers of adjacent digital photographs, and obtaining high-precision linear array position attitude information of the multiple imaging hyperspectral scan lines; based on the high-precision linear array position attitude information and the DEM, establishing a collinearity equation and generating a hyperspectral image.

Drone-mounted imaging hyperspectral geometric correction method and system

A tire direct-pressure shaping and electromagnetic induction heating curing method uses an inner metal mold including large and small segments, a telescoping mechanism, supporting plates attached to the segments, and induction heating coils. A cavity in the middle of the segments is filled of phase change material. The temperature of the mold rises rapidly by the thermal effect of an eddy current generated on the surface of the segments to heat the green tire. When the middle part of the segment is heated to a certain temperature, the phase change material absorbs and stores the excess heat. Therefore, the temperature of the middle part of the segment differs from one of two ends of the segment. Once the tire is cured, the inner mold in the expanded condition and the outer mold support very high pressure for the green tire together.

Tire direct-pressure shaping and electromagnetic induction heating curing method and apparatus

The present invention relates to a loop-route production method and system for polyvinyl chloride, and belongs to the intersecting fields of coal chemicals, polymer materials and chemical machinery. Limestone and carbon materials such as coal are reacted in an oxygen-enriched high temperature furnace to obtain calcium carbide and carbon monoxide, and then acetylene and carbon monoxide are respectively produced from calcium carbide and dichloroethane (obtaining ethylene, etc., through methanol or ethanol); both of the end products are combined to form a closed-loop; acetylene and dichloroethane are reacted to produce a vinyl chloride monomer, which is polymerized to obtain polyvinyl chloride. The system of the present invention mainly includes a device for pulverizing and mixing solid raw materials, a device for conveying solid materials, an oxygen-enriched calcium carbide furnace, an oxygen-enriched air-blowing device, a tube-shell thermostatic reactor, a fixed bed tubular reactor, a fluidized bed reactor, an acetylene generator having a heat exchanger, a fixed bed reactor and a polymerization reactor. The present invention has the advantages of not only removing the dependence on oil resources during the production of polyvinyl chlorides, but also totally eliminating the mercury pollution.

Loop-route production method and system for polyvinyl chloride

A tire direct-pressure shaping and electromagnetic induction heating curing method and apparatus uses an inner metal mold including large and small segments, a telescoping mechanism, supporting plates attached to the segments, and induction heating coils. A cavity in the middle of the segments is filled of phase change material. The temperature of the mold rises rapidly by the thermal effect of an eddy current generated on the surface of the segments to heat the green tire. When the middle part of the segment is heated to a certain temperature, the phase change material absorbs and stores the excess heat. Therefore, the temperature of the middle part of the segment differs from one of two ends of the segment. Once the tire is cured, the inner mold in the expanded condition and the outer mold support very high pressure for the green tire together.

Disclosed are a remote measurement system and method for pesticide fog distribution and drifting tendency in aerial pesticide application, which relate to the technical field of hazardous substance monitoring. The system comprises: a collection module, used for collecting infrared radiation in a detected area, and enabling the infrared radiation to be incident on an optical module; the optical module, used for obtaining, according to the incident infrared radiation, an infrared imaging spectrum in the detected area where a pesticide fog cloud cluster is distributed, and sending the infrared imaging spectrum to a processing module; the processing module, used for analyzing the infrared imaging spectrum, identifying the pesticide fog cloud, obtaining a concentration image of the pesticide fog cloud through inversion, and predicting a drifting tendency of the pesticide fog according to the concentration image. The system and method of the present invention can comprehensively reflect the drifting condition of the pesticide fog in the air in real time, and can obtain the concentration and components of the pesticide fog. The method and system improve the pesticide application efficiency, and prevent damages on the environment and residential areas while saving the cost.

Remote measurement system and method for pesticide fog distribution and drifting tendency in aerial pesticide application

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Beijing, China

Hua Yan