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Your search keyword '"Ge, Wen"' showing total 41 results
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41 results on '"Ge, Wen"'

1. Waterborne Polyurethane Used as Binders for Lithium-Ion Battery with Improved Electrochemical Properties

Author

Jun Jie Bao, Ge Wen Xu, Can Tao, Yi Ping Huang, and Chun Liu Zhu

Subjects
Polyester, Viscosity, chemistry.chemical_compound, Materials science, chemistry, Emulsion, Ultimate tensile strength, General Engineering, Adhesive, Composite material, Fourier transform infrared spectroscopy, Lithium-ion battery, Polyurethane
Abstract

LiFePO4based Lithium-ion batteries are prepared by nonionic waterborne polyurethane with different soft segments which act as binder. FTIR is used to characterize the structure of waterborne polyurethanes .The emulsion viscosity, mechanical properties of films are measured. The result shows that, the emulsion viscosity and tensile strength of polyurethane based polyether glycol are smaller than polyurethane based polyester. Charge-discharge, cycle performance and AC impedance spectroscopy measurement indicat that the first charge-discharge efficiency is 92%, the biggest discharge capacity is 115 mAh/g for lithium-ion batteries based on waterborne polyurethane as adhesive which equaled to PVDF, the batteries have a good cycle performance and high cycle efficiency and the impedance of batteries are small than PVDF.

Published
2015
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2. Coal Mine Safety Monitoring System Based on ZigBee and GPRS

Author

Jun Fei Wang, Dian Wu Gao, Dong Ge Wen, and Jie Cheng

Subjects
Engineering, SIMPLE (military communications protocol), business.industry, ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS, Coal mining, ComputerApplications_COMPUTERSINOTHERSYSTEMS, General Medicine, Identification (information), Remote data transmission, Transmission (telecommunications), Wireless, General Packet Radio Service, business, Computer network, Safety monitoring
Abstract

A wireless coal mine safety monitoring system based on ZigBee wireless sensor network and GPRS wireless remote transmission was established, which enjoys the characteristics of ZigBee technology, including quick networking, low cost, less power consumption, simple network structure and real-time parameter monitoring. With mature GPRS technology, remote data transmission was achieved and associated director can be informed through short message sent to his cellphone, which contributes to the early identification of serious accidents and real-time treatment, thus increasing the safety of coal mining.

Published
2013
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3. Line-of-Sight Angle Rate Reconstruction for Phased Array Strapdown Seeker

Author

Shi Qing Zhu, Wei Feng Tian, Ge Wen Yang, Ying Liu, and Jian Kang Zhao

Subjects
Engineering, Line-of-sight, business.industry, Phased array, General Engineering, Kalman filter, law.invention, Noise, Missile, Control theory, law, Proportional navigation, Computer vision, Artificial intelligence, Radar, business, Guidance system
Abstract

The phased array strapdown radar seeker’s detecting information is coupled with missile attitude information. Hence, the measurement information can not be used for proportional navigation directly. The method of reconstructing inertial line of sight (LOS) rate in phased array strapdown seeker is presented using the missile-target relative motion geometric and filtering algorithm. Considering measurement noise and nonlinearity of the phased array strapdown radar guidance systems, the principle of unscented kalman filter (UKF) is introduced to estimate LOS rate. The simulation results show that the reconstruction method is correct and the extraction of LOS rate is effective.

Published
2013
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4. Modeling Analysis of Shell, Texaco Gasification Technology’s Effects on Water Gas Shift for Fischer-Tropsch Process

Author

Yuan Yuan Xu, Yan Ming Wang, and Ge Wen Yu

Subjects
Thermal efficiency, Wood gas generator, Waste management, business.industry, Chemistry, Integrated gasification combined cycle, General Engineering, Boiler (power generation), Fischer–Tropsch process, Process engineering, business, Water-gas shift reaction, Syngas
Abstract

This work analyzes different gasification processes affect on WGS process with Excel-Aspen Plus based models.in large scale production. Results show that Shell gasifier can obtain higher (CO + H2)/syngas ratio and higher thermal efficiency but lower H2/CO ratio than Texaco gasifier. However, both of H2/CO ratios are below 1.0 and WGS reaction has to carry out to prepare for the Fischer-Tropsch synthesis. The simulation shows Shell syngas does not offer adequate H2O molecules for WGS shift reaction and it can be supplied by the 5.2MPa steam generated from the boiler of the Shell gasification process. Texaco syngas has sufficient H2O molecules to meet the need of this reaction. The overall thermal efficiency of the Texaco-WGS is lower than that of the Shell-WGS.

Published
2012
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5. Dynamic Anti-Saturation Integral Controller Used in Time-Varying Delay System

Author

Gui You Pu and Ge Wen Kang

Subjects
Engineering, business.industry, Mechanical Engineering, Open-loop controller, Motor control, Control engineering, Integral controller, Variable (computer science), Mechanics of Materials, Control theory, Norm (mathematics), General Materials Science, Saturation (chemistry), business, Control methods
Abstract

Systems with large variable delay, traditional control methods can’t performance well. In this paper, a controller combined with the human-simulated intelligent controller (HSIC) and newly dynamic anti-saturation integral controller, is used in the time-varying delay motor speed control. Simulation studies show, there is no chatter in this controller which is always in norm variable structure controller and this method reaches good performance in the time-varying delay system.

Published
2011
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