barrel vaults are attractive space structures that cover large area without intermediate supports. in this paper, the charged search system (css) optimization algorithm is employed for optimal design of barrel vaults. this method utilizes the governing laws of coulomb and gauss from electrostatics and the newtonian law of mechanics. the results demonstrate the efficiency of the discrete css alg...

The optimal design of Electro Chemical Machining (ECM) processes is of significant technological importance. In the present work ECM processes with an oscillating tool electrode are considered. It is motivated by the fact that the workpiece electrode may suffer damage or may even fail if the applied load due to hydrodynamic forces is too large. A simple formula is developed for the reaction for...

Structural noise is an important factor that endangers aircraft fatigue life and flight safety. It also has a negative effect on aircraft stealth performance and noise navigability. An optimal design of a structure-acoustic coupled system is an effective way to reduce noise and vibration. Due to the uncertainties that exist in the structural and acoustical parameters, the traditional determinis...

In a symmetric information voting model, an individual (politician) can influence voters’ choices by strategically designing a policy experiment (public signal). We characterize the politician’s optimal experiment. With a non-unanimous voting rule, she exploits voters’ heterogeneity by designing an experiment with realizations targeting different winning coalitions. Consequently, under a simple...

This paper addresses an optimal design problem of dynamic quantizers for a class of 2D systems with discrete-valued control input. First, we derive a closed form expression of the performance of a class of dynamic quantizers. Next, based on that, an optimal dynamic quantizer is provided. Finally, we apply the optimal dynamic quantizer to generate binary halftone images.

.............................................................................................................................. i PREFACE ................................................................................................................................iii CONTENTS...........................................................................................................................

The paper presents some models for optimizing the production rate of an automatic multitest blood analyser. A blood analysis may require one or more tests. The performance of the analyser depends on the test compositions of the analyses and the design of the analyser itself, The design can be changed. The optimal design can be determined by solving a set partitioning problem, given a representa...

We investigate the optimal design of a committee in a model with the endogenous participation of experts who have private information about their own abilities. We study three different dimensions of committee design: members’ wages, the number of seats, and the communication system. We show that, surprisingly, higher wages lead to lower quality experts. By contrast, transparency improves the q...