WorldCat Identities

Zhu, Qiji J. (Qiji Jim)

Overview
Works: 4 works in 22 publications in 1 language and 596 library holdings
Classifications: QA315, 515.64
Publication Timeline
Key
Publications about  Qiji J Zhu Publications about Qiji J Zhu
Publications by  Qiji J Zhu Publications by Qiji J Zhu
Most widely held works by Qiji J Zhu
Techniques of variational analysis by Jonathan M Borwein ( )
19 editions published between 2005 and 2006 in English and held by 587 WorldCat member libraries worldwide
"Variational arguments are classical techniques whose use can be traced back to the early development of the calculus of variations and further. Rooted in the physical principle of least action they have wide applications in diverse fields. This book provides a concise account of the essential tools of infinite-dimensional first-order variational analysis illustrated by applications in many areas of analysis, optimization and approximation, dynamical systems, mathematical economics and elsewhere. The book is aimed at both graduate students in the field of variational analysis and researchers who use variational techniques, or think they might like to. Large numbers of (guided) exercises are provided that either give useful generalizations of the main text or illustrate significant relationships with other results."--Résumé de l'éditeur
Techniques in variational analysis by Jonathan M Borwein ( )
1 edition published in 2005 in English and held by 7 WorldCat member libraries worldwide
Problems with delayed and unbounded controls : a dissertation by Qiji J Zhu ( Book )
1 edition published in 1992 in English and held by 1 WorldCat member library worldwide
Reactive Flow Control of Delta Wing Vortex (Postprint) ( )
1 edition published in 2006 in English and held by 1 WorldCat member library worldwide
In this paper, the reactive flow control of delta wing leading edge vortices using along-core pulse width modulation (PWM) flow injection is presented. Leading edge vortices on the upper surface of a delta wing can augment lift. Manipulating breakdown points of leading edge vortices can effectively change the delta wing's lift and drag and generate attitude control torque. In this paper, a dynamic model of active flow control of vortex break down points is identified from wind tunnel data using a model scheduling method. Based on the identified model, a closed-loop active flow controller is developed. Simulation and real-time wind tunnel test show that the closed-loop controller can effectively manipulate the upper surface pressure of the delta wing, which indicates the closed-loop controller can effectively control vortex breakdown points
 
Audience Level
0
Audience Level
1
  Kids General Special  
Audience level: 0.75 (from 0.00 for Reactive F ... to 0.76 for Techniques ...)
Alternative Names
Qiji, Zhu.
Zhu, Jim
Zhu, Qi-ji
Zhu, Qiji.
Languages
English (22)
Covers