Free standing linear arrays (FSLA) are analyzed and optimized to increase MIMO capacity. A MIMO channel model based on electric fields is used. The effects of mutual interactions among the array elements are included into the channel matrix using Method of Moments (MoM) based full-wave solvers. A tool to design an antenna array of superior MIMO capacity for any specified volume is developed. Pa...

A passive method for obtaining good mixing within microdroplets is to introduce curves in the boundaries of the microchannels in which they flow. This article develops a method which quantifies the role of piecewise circular or straight channel boundaries on the transport within a two-cell microdroplet. Transport between the two cells is quantified as an easily computable time-varying flux, whi...

The alternating current electroosmotic flow of a non-Newtonian power-law fluid is studied in a circular microchannel. A numerical method is employed to solve the non-linear Poisson-Boltzmann and the momentum equations. The main parameters which affect the flow field are the flow behavior index, the dimensionless zeta potential and the dimensionless frequency. At very low dimensionless frequenci...

The typical installation of a heat exchange device usually involves a flow contraction at the core entrance and a flow expansion at the core exit. Repeated flow Contraction and expansion are experienced in the flow passages of some compact heat exchangers. The latter refers to the flow passages in the plate-fin type with louvered fins or stripped fins and in the tubular type with dimpled-circul...

Reports and Memoranda No. 332±* t February, z96z Summary. Apparatus is described for the measurement of shock attenuation.in channels of several configurations. A circular-bore channel, a square-bore channel and converging and diverging channels have been investigated. Measurements of hot-flow duration and wall pressure variations in the shock tube have also been made. It is concluded that conv...

Simple elementwise transformations, based on circular centering performed over multicomponent images before the channel correlations, are proposed for improving recognition of multicomponent objects. The transformations reduce a strong correlation between the channel components of real-life images. As a result, the subsequent channel correlations can be performed independently in the decorrelat...

before (left) and after (right) signal intensity correction. The images of the other 2 rats were simultaneously obtained and were of comparable quality (not shown). Fig.1. Sixteen-channel coil dedicated for small animal MRI. An array comprises 8 5-cm-circular coils (a). The 16-channel coil has 2 sets of 8-array coils in the upper and lower parts (b). A white bar on the top is used to adjust the...

In this paper, the bandwidth dependence of propagation channel for Body Area Networks (BANs) in circular metallic environments is addressed and models are proposed to evaluate appropriate short-term fading margins that should be considered as a function system bandwidth. The deployment BANs indoor environments, such ships, factories, warehouses other similar involves additional challenges compa...

Expression of the Kir3 channel subfamily in gastrointestinal (GI) myocytes was investigated. Members of this K(+) channel subfamily encode G protein-gated inwardly rectifying K(+) channels (I(KACh)) in other tissues, including the heart and brain. In the GI tract, I(KACh) could act as a negative feedback mechanism to temper the muscarinic response mediated primarily through activation of nonsel...

Line-of-sight (LOS) delay estimation in multipath scenarios is a central problem in global navigation satellite systems (GNSS). Deterministic channel models can be used to describe the multipath environment, but this usually requires the estimation of several nuisance parameters. In order to avoid this effort, stochastic channel models can be used. In this case the multipath statistics have to ...