modeling and simulation of communication circuits at high frequency are important challenges ahead in the design and construction of these circuits. knowing the fact that the lumped element model is not valid at high frequency, distributed analysis is presented based on active and passive transmission lines theory. in this paper, a lossy transmission line model of traveling wave switch (twsw) i...

This paper presents some of the results from a Master’s thesis research into the performance and operation of a centrifugal compressor at off-design operating conditions using advanced computational fluid dynamics (CFD) techniques. ANSYS CFX is the CFD solver used in this blind study to evaluate the ability of modern CFD software to predict the performance of centrifugal compressors operating a...

Design of mobile autonomous robots is challenging due to the limited on-board resources such as processing power and energy source. A promising approach is to generate intelligent scheduling policies that trade off reduced resource consumption for a slightly lower but still acceptable level of performance. In this paper, we provide a framework to aid the designers in exploring such resource-per...

Socio-technical environments grounded in end-user development (EUD) frameworks and supported by EUD technologies provide fundamental enabling conditions for cultures of participation. This paper argues and provides examples and evidence for the following claims: cultures of participation can cause (1) information overload (by generating substantially more information), (2) participation overloa...

The mobile wireless environment poses challenging problems in designing fault tolerant systems because of the dynamics of mobility and limited bandwidth available on wireless links Traditional fault tolerance schemes therefore cannot be directly applied to these systems Mobile systems are often subject to environ mental conditions which can cause loss of communica tions or data Because of the c...

objectives: the authors of this paper hypothesized that vibration stimulation applied by a vibratory orthosis improves balance in patients with parkinson’s disease (pd). in this study we evaluate this hypothesis. methods & materials: fourteen pd patients (12 male and 2 female) with mean age of 59.9±9.1 (±sd) years were participated in this cross- sectional study. using biodex balance system, th...