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On the Stiffness of a Novel Six-DOF Parallel Minimanipulator
(1995)
The dimensionally-uniform Jacobian matrix of a novel three- limbed, six degree-of-freedom (DOF) minimanipulator is used to derive its dimensionally-uniform stiffness matrix.<P>The minimanipulator limbs are inextensible and ...
A New Class of Petri Nets for Modeling, Planning and Scheduling of Flexible, Manufacturing Systems
(1994)
This work addresses the modeling, verification, planning and scheduling problems of non-cycle discrete systems with emphasis on Flexible Manufacturing Systems. We introduce a special type of Petri nets, the Conflict-Free ...
Kinematic Analysis of Epicyclic-Type Transmission Mechanisms Using the Concept of Fundamental Geared Entities
(1996)
A new methodology for the speed ratio analysis of epicyclic-type transmission mechanisms is presented. First, the kinematic characteristics associated with various operation modes of fundamental geared entities are ...
Discrete-Time Risk-Sensitive Filters with Non-Gaussian Initial Conditions and their Ergodic Properties
(1998)
In this paper, we study asymptotic stability properties ofrisk-sensitive filters with respect to their initial conditions. In particular, we consider a linear time-invariant system with initial conditionsthat are not ...
Risk-Sensitive and Minimax Control of Discrete-Time, Finite-State Markov Decision Processes
(1998)
This paper analyzes a connection between risk-sensitive and minimaxcriteria for discrete-time, finite-states Markov Decision Processes(MDPs). We synthesize optimal policies with respect to both criteria,both for finite ...
A Lyapunov Functional for the Cubic Nonlinearity Activator-Inhibitor Model Equation
(1998)
The cubic nonlinearity activator-inhibitor model equation is a simpleexample of a pattern-forming system for which strong mathematical resultscan be obtained. Basic properties of solutions and the derivation ofa Lyapunov ...
Harnack's Inequality for Cooperative Weakly Coupled Elliptic Systems
(1997)
We consider cooperative, uniformly elliptic systems, with bounded coefficients and coupling in the zeroth-order terms. We establish two analogues of Harnack's inequality for this class of systems. A weak version is obtained ...
A Plan-Based Design Similarity Approach for Hybrid Process Planning
(1997)
A process plan describes the steps necessary to manufacture a product. Because creating a process plan is a time-comsuming activity, researchers have developed methods that reduce the time and effort required. The hybrid ...
Using POMDP as Modeling Framework for Network Fault Management
(1999)
For highדּpeed networks, it is important that fault management be proactive--i.e., detect, diagnose, and mitigate problems before they result in severe degradation of network performance. Proactive fault manageשּׂent depends ...
A Spectrally Filtered, Least-Squares Projection Method for Stokes Flow Problems in Driven Cavities
(1999)
A least-squares, weighted residual projection method is presented forcomputingStokes flow solutions to driven cavity problems in rectangular andcylindrical geometries.In this procedure, thevelocity field components are ...