نتایج جستجو برای: power utilisation

تعداد نتایج: 499882  

2011
Eva Lesén

of Public Health Psychotropic drugs, which include antipsychotics, anxiolytics, hypnotics, and antidepressants, are commonly utilised among the elderly. However, drug utilisation in this population is complex due to multiple morbidities, extensive drug utilisation and an increased sensitivity to drugs. Inappropriate utilisation of drugs among the elderly is an issue of great public health impor...

2002
Erika Twining Grahame Holmes

Recent advances in power electronic technology have seen the development of a range of converter based power compensation systems which have the potential to improve supply quality and increase line utilisation in weak distribution networks at relatively low cost. However, the interaction of these devices with the supply network has not been well documented. In this paper we investigate the ste...

2018
Andrew Keane Luis F. Ochoa Gareth P. Harrison

Distributed Generation (DG) is increasing in penetration on power systems across the world. In rural areas, voltage rise limits the permissible penetration levels of DG. Another increasingly important issue is the impact on transmission system voltages of DG reactive power demand. Here, a passive solution is proposed to reduce the impact on the transmission system voltages and overcome the dist...

2010
F. H. Khan L. M. Tolbert

A 5-kW multilevel modular capacitor-clamped dc–dc converter (MMCCC) with bi-directional power management and real-time fault bypassing capability will be presented in this study. The modular structure of the MMCCC topology was utilised to build this 5-kW converter with necessary redundancy and hot swap feature for industrial and automotive applications including a future plug-in hybrid or fuel-...

2006
JIRI LETTL

Matrix converters have attracted an amount of interest over the past 25 years already, but they find time after time once again new utilisation. The presented paper deals with the recent concept of hybrid and power splitting traction drive systems. Special attention is paid to electric power splitting. In the investigated system a traction induction motor is employed. The matrix converter reali...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه ارومیه 1377

‏‎applications such as high definition viedeo reproduction, portable computers, wireless, and multimedia demand, and ever-increasing need for ligh-frequency high-resolution and low-power analog-to-digital converters. flash, two-step flash, and pipeline convertors are fast but consume large amount of power and require large area. to overcome these problems, successive approximation converter blo...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی خواجه نصیرالدین طوسی - دانشکده مهندسی برق و کامپیوتر 1391

many mobile and off-grid devices include electronics and other electrical consumers like servo drives, which need a quite low supply power. since the price for photovoltaic modules drops continuously, photovoltaic power supply is interesting in more and more applications. in solar powered systems, a battery is needed to store energy for the night and cloudy periods. the power electronics of suc...

2017
Dikaios Sakellariou Elena S Rotarou

BACKGROUND Research has shown that women with disabilities face additional challenges in accessing and using healthcare services compared to non-disabled women. However, relatively little is known about the utilisation of cancer screening services for women with disabilities. This study addresses this gap by examining the utilisation of the Papanicolaou test and mammography for disabled women i...

2013
Michael Sonnenschein Martin Tröschel Ontje Lünsdorf

Future energy systems will increasingly rely on distributed and renewable energy sources (RES). Electrical feed-in of photovoltaic (PV) power plants and wind energy converters (WEC may vary greatly, the supply of electrical power from RES and the demand for electrical power are not per se matching. and in addition, with a growing share of generation capacity especially in distribution grids, th...

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