A development aid project to Malawi is described. This involved the development of a suitable anaesthetic machine for use in under-developed countries and the selection of a suitable oxygen concentrator to provide it with air and oxygen. All government hospitals were provided with anaesthetic equipment and personnel were trained to keep it regularly serviced. Follow up testing of reliability wa...

The main goal of this work is to propose a way for combined use of two nontraditional algorithms by solving topological problems on telecommunications concentrator networks. The algorithms suggested are the Simulated Annealing algorithm and the Genetic Algorithm. The Algorithm of Simulated Annealing unifies the well known local search algorithms. In addition Simulated Annealing allows acceptati...

This paper describes a mesh networking based solution on Routing Protocol for Low power and Lossy network to realize Automated Metering Infrastructure (AMI) network communication. Automated Metering Infrastructure is expected to facilitate the transport of meter readings from meters to the utility provider and control information in the other direction. The smart meters send the meter data to t...

1/f noise is one of the main noise sources of giant magnetoresistance (GMR) sensors, which will cause intrinsic detection limit at low frequency. To suppress this noise,a novel vertical motion modulated flux concentrator (VMMFC) is proposed in this paper, which has high efficiency and simple structure. The flux concentrator and modulation film of VMMFC were analyzed with numerical simulation. T...

Innovative microfluidic technology has enabled massively parallelized and extremely efficient biological and clinical assays. Many biological applications developed and executed with traditional bulk processing techniques have been translated and streamlined through microfluidic processing with the notable exception of sample volume reduction or centrifugation, one of the most widely utilized p...

We present a new approach to solar concentration where sunlight collected by each lens in a two-dimensional lens array is coupled into a shared, planar waveguide using localized features placed at each lens focus. This geometry yields a thin, flat profile for moderate concentration systems which may be fabricated by low-cost roll manufacture. We provide analyses of tradeoffs and show optimized ...