نتایج جستجو برای: balanced power sources

تعداد نتایج: 794571  

2008
H. Beltran N. Aparicio E. Belenguer C. Cervelló García

The aim of this paper is to evaluate the benefits that can be achieved by operating the connection inverters of the distributed energy resources as active power filters in LV distribution networks. The use of the future fuel cell inverters to compensate zero sequence currents, arising from unbalances among phases, can improve the efficiency of the distribution networks by means of reducing the ...

2010
Peter Byass Wayne Twine Mark Collinson Stephen Tollman Tord Kjellstrom

BACKGROUND It is widely accepted that assessing the impact of heat on populations is an important aspect of climate change research. However, this raises questions about how best to measure people's exposure to heat under everyday living conditions in more detail than is possible by relying on nearby sources of meteorological data. OBJECTIVE This study aimed to investigate practical and viabl...

This paper describes the design of an X-band balanced low noise amplifier (LNA) using an available HJFET device. The balanced LNA consists of a pair of electrically similar transistors whose input and output signals are divided or combined by 3 dB two-stage Wilkinson power dividers. The proposed balanced LNA is fabricated and measured. The measured results show that the noise figure is 1.30 dB ...

2017
Chen Gong Dake Liu Zhidong Miao Min Li

When using the conventional two-coil inductive link for the simultaneous wireless power and data transmissions in implantable biomedical sensor devices, the strong power carrier could overwhelm the uplink data signal and even saturate the external uplink receiver. To address this problem, we propose a new magnetic-balanced inductive link for our implantable glaucoma treatment device. In this in...

2012
Jay Singh Priyadarshi Krishna Saurabh Raj

The stand-alone power inverter is equipped with various management systems which guarantee the stable operation of the power supply system. Battery, generator, power and load management complement each other to provide a comprehensive system management. All the necessary variables are measured or calculated by Sunny Island. This ensures that no switching activity or set point alteration will be...

2010
Katrin Bloch Ralf Wagner

One of the recurring topics in retailing is the power shift in the supply channel toward the retailers. Several studies focus on the reasons for the power shift rather than highlighting the consequences for the retailer-manufacturer relationship. Despite a considerable amount of literature about gender, the intersection of power and gender is seldom challenged. In this paper, we combine both re...

2012
Joseph HEILI Hélène Michel

This paper analyzes the potential of serious games for professional and pedagogical purposes and learning. To do this, the authors have questioned the efficiency of these games. They present an experiment conducted with 66 students trained in sales that compares a group of players with a group of non-players. The game’s impact on skills was studied from two angles: first from a theoretical poin...

2004
Yosuke WATANABE Masatake SHIGENAGA Masamitsu TOKUDA

LCL and LCTL frequency characteristics for the balanced pair cable of power line communication system were measured for the several grounding conditions such as no, input side and output side groundings. In consequence, it is clear that the input side grounding for LCL became the worst, but the output side grounding for LCTL became the worst, and the tendency of the LCTL frequency characteristi...

Journal: :فیزیک زمین و فضا 0
اردلان خزائی فر دانشجوی کارشناسی ارشد، دانشکدة معدن، نفت و ژئوفیزیک، دانشگاه صنعتی شاهرود، ایران علی نجاتی کلاته استادیار، دانشکدة معدن، نفت و ژئوفیزیک، دانشگاه صنعتی شاهرود، ایران امین روشندل کاهو استادیار، دانشکدة معدن، نفت و ژئوفیزیک، دانشگاه صنعتی شاهرود، ایران فرامرز الله وردی میگونی کارشناس ژئوفیزیک، مدیریت اکتشاف، سازمان زمین شناسی و اکتشافات معدنی کشور، تهران، ایران

there are various approaches for depth estimation of anomalous potential field data. spectral analysis of gravity and magnetic data has been used extensively for many years to derive the depth to certain geological structures, such as the magnetic basement or the curie temperature isotherm. the interpretation of the gravity and magnetic data is preferred in frequency domain because of simple re...

This paper presents a control strategy for fuel cell/energy storage power generation system during voltage sag conditions. The hybrid DC power sources are connected to grid using power electronic converters include DC-DC converter and grid connected voltage source inverter. The power from hybrid power sources is controlled during voltage sag by designing of control strategy for DC-DC converter....

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