Thesis (Ph. D.)--State University of New York at Buffalo, 2004.
Continuous Dependence With Respect to the Input of Trajectories of Control-Affine Systems (1999)
Wensheng Liu, Héctor J. Sussmann
. We study the continuous dependence on the input of trajectories of control-affine systems belonging to the class C 0 (m) of all systems \Sigma of the form \Sigma : x = f 0 (x) + m X i=1 u i (t)f i...
Fault detection in multirate sampled-data systems /--by Wensheng Liu. (1997)
Thesis (M.S.)--University of Nevada, Reno, 1997.
Lie Bracket Extensions And Averaging: The Single-Bracket Case (1997)
Single-bracket Case, Héctor J. Sussmann, Wensheng Liu
We explain a general approximation technique for nonholonomic systems by discussing in detail a special example, chosen so as to illustrate some of the technical aspects of the general construction....
On finite gain stabilizability of linear systems subject to input saturation (1996)
Wensheng Liu, Yacine Chitour, Eduardo Sontag
Abstract. This paper deals with (global) finite-gain input/output stabilization of linear systems with saturated controls. For neutrally stable systems, it is shown that the linear feedback law...
Shortest paths for sub-Riemannian metrics on rank-two distributions (1995)
Wensheng Liu, Héctor J. Sussmann
We study length-minimizing arcs in sub-Riemannian manifolds (M;E;G) whose metric G is defined on a rank-two bracket-generating distribution E. It is well known that all length-minimizing arcs are...
On the continuity and incremental-gain properties of certain saturated linear feedback loops (1995)
Yacine Chitour, Wensheng Liu, Eduardo Sontag
summary This paper discusses various continuity and incremental-gain properties for neutrally stable linear systems under linear feedback subject to actuator saturation. The results complement our...
On the Continuity and Incremental-Gain Properties of Certain Saturated Linear Feedback Loops (1994)
Yacine Chitour, Wensheng Liu, Eduardo Sontag
This paper discusses various continuity and incremental-gain properties for neutrally stable linear systems under linear feedback subject to actuator saturation. The results complement our previous...
On Finite Gain Stabilizability of Linear Systems Subject to Input Saturation (1993)
Wensheng Liu, Yacine Chitour, Eduardo Sontag
This paper deals with (global) finite-gain input/output stabilization of linear systems with saturated controls. For neutrally stable systems, it is shown that the linear feedback law suggested by...
Motion Planning and Approximate Tracking for Controllable Systems without Drift (1991)
Hector J. Sussmann, Wensheng Liu
We describe an approach for motion planning for nonholonomic systems without drift based on a combination of (a) earlier work of Sussmann and Lafferriere and (b) some recent results on approximation...
Héctor J. Sussmann, Wensheng Liu
We describe sufficient conditions, extending earlier work by Kurzweil and Jarnik, for a sequence of inputs u j = (u j 1 ; : : : ; u j m ) 2 L 1 ([0; T ]; IR m ) to be such that, for every m-tuple (f...
The Research on Enterprise Manufacture Integrated and Collaborative Commerce System (1970)
Global optimization and fast response ability in market cannot be simply achieved by computer automation without considering systematic application integration. The manufacturing enterprises need...
Liu, Wensheng, Gnanasambandam, Radhakrishnan, Benjamin, Jeffery, Kaur, Gunisha, Getman, Patricia B., Siegel, Alan J., ...
Mitochondrial dysfunction is involved in many neurodegenerative disorders in humans. Here we report mutations in a gene (designated levy) that codes for subunit VIa of cytochrome c oxidase (COX). The...