منابع مشابه
→ Big Year for Small Satellite
Less than a cubic metre in volume, Proba-2 is one of the smallest missions ever flown by ESA. But judged by performance per kilogram, Proba-2 can also claim to be among the most scientifically and technically productive.
متن کاملInsignificant change in Antarctic snowfall since the International Geophysical Year.
Antarctic snowfall exhibits substantial variability over a range of time scales, with consequent impacts on global sea level and the mass balance of the ice sheets. To assess how snowfall has affected the thickness of the ice sheets in Antarctica and to provide an extended perspective, we derived a 50-year time series of snowfall accumulation over the continent by combining model simulations an...
متن کاملA 60-year international history of Antarctic subglacial lake exploration
In January 2013, the USWISSARD programmemeasured and sampled LakeWhillans, a subglacial water body at the edge of West Antarctica, in a clean and environmentally sensitive manner, proving the existence of microbial life beneath this part of the ice sheet. The success of WISSARD represented a benchmark in the exploration of Antarctica, made possible by a rich and diverse history of events, disco...
متن کاملSTRUCTURAL OPTIMIZATION USING BIG BANG-BIG CRUNCH ALGORITHM: A REVIEW
The big bang-big crunch (BB-BC) algorithm is a popular metaheuristic optimization technique proposed based on one of the theories for the evolution of the universe. The algorithm utilizes a two-phase search mechanism: big-bang phase and big-crunch phase. In the big-bang phase the concept of energy dissipation is considered to produce disorder and randomness in the candidate population while in ...
متن کاملEstimation of parameters of metal-oxide surge arrester models using Big Bang-Big Crunch and Hybrid Big Bang-Big Crunch algorithms
Metal oxide surge arrester accurate modeling and its parameter identification are very important for insulation coordination studies, arrester allocation and system reliability. Since quality and reliability of lightning performance studies can be improved with the more efficient representation of the arresters´ dynamic behavior. In this paper, Big Bang – Big Crunch and Hybrid Big Bang – Big Cr...
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ژورنال
عنوان ژورنال: Antarctic Science
سال: 1993
ISSN: 0954-1020,1365-2079
DOI: 10.1017/s095410209300001x