In this paper, we propose a concept of application concentrator that realizes the multiple association at an application level. Since network technologies have been quickly advanced in recent years, various social activities have shifted on a network. Thus, a technology for realizing multiple association to many closed networks is crucial. In this paper, we propose a concept of application conc...

Packet concentrators are used in shared-memory and knockout switches to select and route packets into individual outputs. Recently, a switch model was introduced to investigate the intrinsic relationship between the switching complexity and traffic characteristics of packet concentrators. Using this model, it was shown that any bipartite packet concentrator with n inputs, m outputs and peak per...

Due to chip area and pin count constraints, large con-centrator switches sometimes must be partitioned among several chips. This paper presents designs for two mul-tichip partial concentrator switches, both of which follow from a lemma showing that an "-nearsorter is also an (n; m; 1 ? "=m) partial concentrator.

Automatic Meter Reading (AMR) is the remote collection of consumption data from customer’s utility meters over telecommunications, radio, power line and other links. AMR provides water, electric and gas utility−service companies the opportunities to streamline metering, billing and collection activities, increase operational efficiency and improve customer service. Utility company uses technolo...

A conventional preoxygenation technique was compared in two volunteers with two techniques based on a drawover breathing system supplied with oxygen enriched air from a Devilbiss Mini VO2 domiciliary oxygen concentrator. Breathing from a 20-litre bag, filled previously at 2 litre min-1 from the concentrator was as effective as the conventional technique (PaO2 73.2 kPa). Supplying 4 litre min-1 ...

An integrated cellulose polymer concentrator/single-walled carbon nanotube (SWCNT) sensing system is demonstrated to detect benzene, toluene, and xylenes (BTX) vapors. The sensing system consists of functionalized cellulose as a selective concentrator disposed directly on top of a conductive SWCNT sensing layer. Functionalized cellulose concentrator (top layer) selectively adsorbs the target an...

We describe a microfluidic concentrator array device that is integrated with microfabricated ratchet structures to concentrate motile bacterial cells in desired destinations with required cell densities. The device consists of many pairs of concentrators with a wide range of spacing distances on a chip, and allows cells in one concentrator to be physically separated from but chemically connecte...

We report concentrations and isotopic compositions of He, Ne, and Ar measured with high spatial resolution along a radial traverse of a silicon carbide (SiC) quadrant of the Genesis mission concentrator target. The Ne isotopic composition maps instrumental fractionation as a function of radial position in the target: the maximum observed isotopic fractionation is approximately 33& per mass unit...

A sparse crossbar (n,m, c)-concentrator is a bipartite graph with n inputs and m outputs in which any c or fewer inputs can be matched with an equal number of outputs, where c is called its capacity. Sparse crossbar concentrators play a key role in multiplexing signals in communication systems and constructing permutation and generalized connection networks. In this paper we present a number of...

A compound parabolic concentrator (CPC) is a wellknown non-imaging concentrator that will concentrate the solar radiation onto receiver (PV cell). One of disadvantage of CPC is has tall and narrow height compared to its diameter entry aperture area. Therefore, for economic reason, a truncation had been done by removed from the top of the full height CPC. This also will lead to the decreases of ...