Here u,π ,n and p denote the fluid velocity field, scalar pressure, cell concentration, and oxygen concentration, respectively. The functions f (p) and r(p) are two given smooth functions of p denoting the oxygen consumption rate and chemotactic sensitivity, respectively. The function φ denotes the potential function. When φ = , system (.) and (.) reduces to the well-known Euler system, Fe...

Consumption of a good at one point in time is a substitute for consumption of the same good an instant earlier or later. Utility functions which conform to this fact must necessarily be non-time separable, as Hindy, Huang, and Kreps show. When agents’ utility functions are non-time separable in the required way, the price space consists of semimartingales with an absolutely continuous compensat...

This paper considers the relative merits of three optimization objective functions for the design of an energy efficient pervaporation membrane network for ethanol dehydration: the minimization of the standard deviation of the thermodynamic driving force, of the entropy generation, and of the power of separation. The resulting designs are compared with those of a standard numerical optimization...

Advances in DRAM technology have led many researchers to integrate computational logic on DRAM chips to improve performance and reduce power dissipated across chip boundaries. The density, packaging, and storage characteristics of these intelligent memory chips, however, present new challenges in power management. We introduce Active Pages, a promising architecture for intelligent memory based ...

Interest in quantum computing, nanotechnology, and low power consumption circuits is fueling the expanding research in reversible logic synthesis. A reversible function is one that generates a unique output vector for every input vector. Traditional circuits are designed with AND and OR gates that allow fan-outs and loop back results which often results in inefficient energy consumption. In con...

This paper explores derivative operations of the Boolean differential calculus for lattices of Boolean functions. Such operations are needed to design circuits with short delay and low power consumption [3] as well as to calculate minimal complete sets of fitting test patterns [4]. It will be shown that each derivative operation of a lattice of Boolean functions creates again a lattice of Boole...

Abstract: We consider three closely related problems in optimal control: (1) minimizing the probability of lifetime ruin when the rate of consumption is stochastic and when the individual can invest in a Black-Scholes financial market; (2) minimizing the probability of lifetime ruin when the rate of consumption is constant but the individual can invest in two risky correlated assets; and (3) a ...

Economy development and promotion of high-speed transport technologies result in the increase of inter-city high-speed passenger transport. The energy consumption over the lifetime of transport infrastructure, composed of construction and operation energy consumption, is a significant factor that should be considered at the planning stage. In this paper, we present a mixed-integer programming (...