This report describes a prograimiable transmission control unit which is attached to an IBM System/360 Model 67 machine operated in a timeshared environment. Called the Data Concentrator, this device provides service for AT^T teletype equipment, IBM typewriter terminal equipment, and remotely located computer equipment interconnected with serial-synchronous transmission data sets. The Data Conc...

Concentrator photovoltaic is an emergent technology that may be a good economical and efficient alternative for the generation of electricity at a competitive cost. However, the reliability of these new solar cells and systems is still an open issue due to the high-irradiation level they are subjected to as well as the electrical and thermal stresses that they are expected to endure. To evaluat...

Collecting and storing solar energy will be a key part of efficient renewable technologies for buildings of the future, particularly in the Middle East. This paper presents the topic of improved properties of optical concentrators to achieve increased solar energy gain. The Solar Photonic Optoelectronic Transformer (SPOT) system is one of the components of the SolarBrane, a Building Integrated ...

We present a novel microfluidic device that enables high sensitive analyses of the chemotactic response of motile bacterial cells (Escherichia coli) that swim toward a preferred nutrient by sorting and concentrating them. The device consists of the Y-shaped microchannel that has been widely used in chemotaxis studies to attract cells toward a high concentration and a concentrator array integrat...

BACKGROUND An experimental work was reported to estimate the increase in distillate yield for a compound parabolic concentrator-concentric tubular solar still (CPC-CTSS). The CPC dramatically increases the heating of the saline water. A novel idea was proposed to study the characteristic features of CPC for desalination to produce a large quantity of distillate yield. A rectangular basin of dim...

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 opportunity to streamline metering, billing and collection activities, increase operational efficiency and improve customer service. The AMR system consists of thre...

The development of a portable oxygen concentrator is of prime significance for patients with respiratory problems. This paper presents a portable concentrator prototype design using the pressure/vacuum swing adsorption (PVSA) cycle with a deep evacuation step (-0.82 barg) instead of desorption with purge flow to simplify the oxygen production process. The output of the oxygen concentrator is a ...

The uniformity of the radiation flux profile along the focal line of a linear parabolic concentrator is typically dependent on factors such as the mirror shape accuracy, gaps between mirrors and shading due to receiver supports. For a photovoltaic trough concentrator, small regions of low radiation flux can have a large impact on the entire system performance. Radiation flux profiles have been ...

Table 5 summarizes my current perspective on home oxygen delivery systems in the United States. As I already indicated, scoring for cost and labor may be very different in other countries. As noted, all things considered, today the most reasonable system for home oxygen therapy is the concentrator. Problems with FIO2, liter flow, and portability are clearly overshadowed by cost, labor, ease of ...