منابع مشابه
Microplasma Breakdown and Hot-spots in Silicon Solar Cells
Photovoltaic module hot-spot endurance tests performed at CEC JRC Ispra showed that the temperature distributions in cells subjected to reverse bias heating were non-uniform and reproducible. An investigation of the physical processes causing non-uniform power dissipation in reverse biased silicon solar cells, using IR imaging, scanning electron microscopy, and electrical measurements, is prese...
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Fas (CD95, APO-1, TNFRSF6) is a TNF receptor superfamily member that directly triggers apoptosis and contributes to the maintenance of lymphocyte homeostasis and prevention of autoimmunity. Although FADD and caspase-8 have been identified as key intracellular mediators of Fas signaling, it is not clear how recruitment of these proteins to the Fas death domain leads to activation of caspase-8 in...
متن کاملForty two years counting spots: Solar observations by D.E. Hadden during 1890–1931 revisited
We have recovered the sunspot observations made by David E. Hadden during 1890–1931 from Alta, Iowa. We have digitized the available data published by Hadden in different astronomical journals. This data series have been analyzed and compared with the standard sunspot number series. Moreover, we provide additional information on two great sunspot groups, previously not described, that originate...
متن کامل“Hot Spots” for Solar Flares Persisting for Decades: Longitude Distributions of Flares of Cycles 19–23
A new analysis method is introduced for investigating whether major flares are clustered in certain fixed regions of the Sun in rigidly-rotating coordinate systems. This method is applied to analysis of major flares of solar cycles 19–23. Northern and southern hemispheres are separately analyzed, and it is found that longitude distributions of flares in the two hemispheres are different. Theref...
متن کاملIntegrating Sustainable Hunting in Biodiversity Protection in Central Africa: Hot Spots, Weak Spots, and Strong Spots
Wild animals are a primary source of protein (bushmeat) for people living in or near tropical forests. Ideally, the effect of bushmeat harvests should be monitored closely by making regular estimates of offtake rate and size of stock available for exploitation. However, in practice, this is possible in very few situations because it requires both of these aspects to be readily measurable, and e...
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ژورنال
عنوان ژورنال: Nature
سال: 1870
ISSN: 0028-0836,1476-4687
DOI: 10.1038/002298a0