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496 results on '"Zhang, Wei-Qiang"'

201. A robust and recyclable polyurea-encapsulated copper(i) chloride for one-pot ring-opening/Huisgen cycloaddition/CO2 capture in water.

Author

Chen, Yun, Zhang, Wei-Qiang, Yu, Bin-Xun, Zhao, Yu-Ming, Gao, Zi-Wei, Jian, Ya-Jun, and Xu, Li-Wen

Subjects
*WATER, *COPPER
Abstract

Multicomponent ring-opening/Huisgen cycloaddition reactions combined with CO2 capture with a polyurea-encapsulated copper salt as a catalyst that in situ formed from simple CuCl and soluble polyurea during the reaction were carried out successfully for the synthesis of β-hydroxytriazoles under exceptionally mild conditions, in which the polyurea-encapsulated copper(i) chloride proved to be a robust and recyclable catalyst system with high yields as well as excellent chemoselectivity in this reaction. [ABSTRACT FROM AUTHOR]

Published
2016
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228. Control of a high performance fighter aircraft by using H(infinity) theory and neural-fuzzy concepts

Author

Zhang, Wei Qiang, Wang, Jianliang, and School of Electrical and Electronic Engineering

Subjects
Engineering::Electrical and electronic engineering::Control and instrumentation [DRNTU]
Abstract

This thesis provides background, theory, and examples for a high performance fighter aircraft (a modified model of F-16) control design. There are mainly three parts in this thesis. The first part presents the development of a software package for flight simulation of a high performance fighter aircraft (a modified model of F-16). The package is developed using MATLAB\SIMULINK. It consists of one SIMULINK model for simulation, one SIMULINK model for trimming/linearization and some essential functions. In this part, an overview of aircraft equations of motion is demonstrated to provide a basic understanding of flight dynamics. The fully nonlinear aircraft model is used with the six-degree-of-freedom (6-DOF) equations of motion. Some additional nonlinear aircraft dynamics such as actuator saturation, auto-scheduled leading-edge flaps and engine model are also included. C MEX-files are programmed to compute aero-dynamic coefficients and engine thrust. This makes the software package more effective and efficient in flight simulation and flight dynamic analysis. The package is also a reliable and flexible tool for checking control design methodology in the next two parts. Master of Engineering

Published
1997

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