نتایج جستجو برای: nuclear generators
تعداد نتایج: 261619 فیلتر نتایج به سال:
(68)Ge/(68)Ga radionuclide generators have been investigated for almost fifty years, since the cyclotron-independent availability of positron emitting (68)Ga via the (68)Ge/(68)Ga system had always attracted researches working in basic nuclear chemistry as well as radiopharmaceutical chemistry. However, it took decades and generations of research (and researchers) to finally reach a level of (6...
Steam generator (SG) tube integrity is of great importance for safe and reliable nuclear power plant (NPP) operation. The application of eddy current testing (ET) to evaluate SG tube integrity is recognized worldwide and has been used over several decades. However, at times, ET results are considered questionable. A decision to leave a defective SG tube in operation is made based on the ET resu...
This paper discusses alternative methods for enabling human explorers to achieve long range mobility on the surface of Mars. Vehicle types considered include ground rovers, winged and lighter-than air atmospheric vehicles, and suborbital ballistic vehicles making use of rocket propulsion. Energy sources considered for such vehicles include batteries, fuel cells, radioisotope generators, solar p...
objectives this study examined 125i concentrations in the edible parts of five types of plants from different locations on farms with a similar climate. near zahedan, iran. background radioiodine 125i is an environmental contaminant that humans may consume in edible plants. the characteristics of 125i in plants are poorly understood. materials and methods the experiments used a mini-column appr...
Threatens Patient Care I n what members of the nuclear medicine community referred to as a ‘‘devastating’’ and ‘‘catastrophic’’ series of events, the Canadian supplier of more than 50% of the world’s marketed radioisotopes shut down its reactor in late November. The result was an immediate shortage of 99mTc generators that forced a scramble for alternative suppliers and drastic reductions in th...
Nuclear energy contributes ~10% of the global electricity generation and different views exist on its carbon-intensity sustainability. Context is crucial to determine sustainability new nuclear power generators, making existence a answer unresolved question unlikely. This study aims establish life-cycle greenhouse gas emissions associated with in Europe given ongoing construction generators. Du...
— Questions serve to focus discussions of research problems and engineering challenges. This is the first of three papers, which will pose and address technical questions about Lattice Enabled Nuclear Reactions (LENR). It deals with theoretical mechanisms and key materials in LENR experiments and potential power generators.
This paper addresses three questions that are relevant to integrating different regional transmission areas. Market integration normally increases the number of competitors and should therefore reduce prices but the first section shows that prices could rise when the number of generators initially increases. Regulatory effort will also be affected by market integration. If the number of generat...
The materials of the article consider design characteristics horizontal steam generators PGV-1000 for WWER NPPs. NPP generator, in particular is a specific heat exchange unit. This unit, together with nuclear reactor and turbine, one main equipment multi-circuit (double-circuit) turbine generator produces working using dissipated from core by cooling medium sent to surface generator. generators...
Commercialization of LENR sources of power and energy has several challenges. But, if they are overcome, attractive potential advantages and important impacts should follow. These challenges, attractions and possible impacts are cited and discussed. The next few years might reveal which of these factors are realistic.
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