Topological design of centralized computer networks is an important problem that has been investigated by many researchers. Such networks typically involve a large number of terminals connected to concentrators, that are then connected to a central computing site. This paper focuses on the concentrator location problem among general topological network design problems. The concentrator location...

This longitudinal study explores the lived experience of four couples where one person from each couple is prescribed an oxygen concentrator to use at home. Transcripts were analysed using interpretative phenomenological analysis. The findings reported here focus on two super-ordinate themes: 'the journey of acceptance' and 'negotiating changing relationships'. Participants described a gradual ...

An Egyptian blue integrated luminescent solar concentrator (LSC) is reported.

Articles you may be interested in Highly selective biomechanical separation of cancer cells from leukocytes using microfluidic ratchets and hydrodynamic concentrator Selective cell capture and analysis using shallow antibody-coated microchannels

In this paper we present a scalable and recursive class of banyan switching architectures called the Shared-Tree Banyan Networks (STBN). For ATM networks STBN can be engineered between two extremes: (1) a low-cost banyan with internal and external conflicts, or (2) a high-cost conflict-free fully-connected network with multiple outlets. STBN scalability is based on: (1) scalable concentrator ba...

Avascular necrosis of the lunate bone (Kienböck disease) is caused by loss of blood supply of the bone. This study aimed to evaluate the efficacy and safety of a novel nickel-titanium (Ni-Ti) memory alloy arthrodesis concentrator in the treatment of this disease.A consecutive 24 patients with stage IIIb aseptic lunate necrosis were treated with scapho-trapezio-trapezoeid (STT) arthrodesis using...

The relevance of the research is related to development a new type renewable energy source ‒ vortex wind device with vertical axis rotation without guidance mechanisms. main purpose study develop turbine using mathematical modeling motion and laboratory experiments on model. object consisting concentrator curved channels, inside which there wheel, pipe mounted concentrator. calculations are bas...

BACKGROUND Mining and smelting activities affect the biophysical environment and human health. OBJECTIVE This paper elucidates on the human health status of residents close to a nickel-copper mine and concentrator/smelter plant. METHOD 600 questionnaires were administered and data generated was processed. RESULTS Health complaints of respondents included palpitations, lower abdominal pain...