منابع مشابه
Visibility of the Shafarevich–Tate Group at Higher Level
We study visibility of Shafarevich–Tate groups of modular abelian varieties in Jacobians of modular curves of higher level. We prove a theorem about the existence of visible elements at a specific higher level under certain hypothesis which can be verified explicitly. We also provide a table of examples of visible subgroups at higher level and state a conjecture inspired by our data. 2000 Mathe...
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In this paper the main factors that influence the Caspian Sea level rising and the probable and improbable factors are discussed in detail. A cyclical behavior of the level of the Caspian Sea according to local records was proposed. This cyclic fluctuation of the sea level is the long-term behavior of the sea so that the investigation is not restricted to a specific time interval. The statistic...
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At high altitudes, the air pressure is much lower than it is at sea level and contains fewer oxygen molecules and less oxygen is taken in at each breath. This requires deeper and rapid breathing to get the same amount of oxygen into the blood stream compared to breathing in air at sea level. Exercises increase the oxygen demand and make breathing more difficult at high altitude. In this study, ...
متن کاملThe Sensitivity of Safe Ship Control in Restricted Visibility at Sea
The structure of safe ship control in collision situations and computer support programmes on base information from the ARPA anti-collision radar system has been presented. The paper describes the sensitivity of safe ship control to inaccurate data from the ARPA system and to process control parameters alterations. Sensitivity characteristics of the multi-stage positional non-cooperative and co...
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Warfighter exposure to high terrestrial altitude continues to be a reality for the modern fighting force. Understanding the negative effects of altitude on cognitive performance is essential as the cognitive demands of many warfighting tasks are becoming increasingly complex. To date, little research has investigated the performance of multiple cognitive tasks in a high altitude environment. Th...
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ژورنال
عنوان ژورنال: Journal of Light & Visual Environment
سال: 2002
ISSN: 0387-8805,1349-8398
DOI: 10.2150/jlve.26.3_24