منابع مشابه
Fusion as a Future Power Source: Recent Achievements and Prospects
Recent advances in high energy plasma physics show that nuclear fusion the energy source of the sun and the stars [1] may provide the corner-stone of a future sustainable energy system. Such power plants would be safe and environmentally friendly. In particular, one of the main problems of fission reactors, namely that of a possible uncontrollable nuclear reaction is banished; also the problem ...
متن کاملطراحی و بکارگیری مبدلهای z-source در ادوات custom power
امروزه کیفیت توان هم از طرف شبکه و هم از طرف مصرف کنندگان توجه ویژه ای را به خود جلب کرده و این موضوع به خاطر استفاده بسیار گسترده بارهای حساس و تجهیزات الکترونیکی است که ممکن است تحت اختلالاتی نظیر فلیکر ولتاژ، هارمونیک، کمبود و بیشبود ولتاژ و قطعی های موقت قرار بگیرند. این اختلالات موجب عملکرد نامناسب بارهای حساس، گرمای بیش از حد تجهیزات، خرابی موتورهای الکتریکی، اندازه گیری های نادرست و عملک...
15 صفحه اولeuthanasia: murder or not: a comparative approach.
background euthanasia is one of the most intriguing ethical, medical and law issues that marked whole xx century and beginning of the xxi century, sharply dividing scientific and unscientific public to its supporters and opponents. it also appears as one of the points where all three major religions (catholic, orthodox, and islamic) have the same view. they are strongly against legalizing mercy...
متن کاملSpallation Is Not the Only Fruit: Low Energy Fusion as a Source of Neutrons
Commercially there is a growing interest in applications of neutrons. Currently the majority of neutron sources are based at research institutions from either reactors or spallation sources. Smaller portable sources contain either fissile isotope or sealed fusors are available, although they either use or produce tritium, or other long lived decay products. As an alternative to the large facili...
متن کاملPeriodontal Pockets as a Potential Source of Infection: a Case of Possible Odontogenic Septic Pulmonary Embolism
Although dental foci can be sources of bacteremia and bacterial endocarditis, hematogenous spread of infection presented with septic pulmonary embolism apparently is rare. The occurrence of septic pulmonary embolism in patients with periodontal disease without suppurative thrombophlebitis of the great vessels of the neck is well documented but to our knowledge, there is no report on septic pulm...
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ژورنال
عنوان ژورنال: Journal of Chemical Education
سال: 1996
ISSN: 0021-9584,1938-1328
DOI: 10.1021/ed073p382.1