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As a country beginning its motorization process, China must confront the problems attached to an oil-based car society. In adopting conventional automobile technology, the country would aggravate an already unstable oil balance while pushing up carbon dioxide levels. Not only would domestic...
Persistent link: https://www.econbiz.de/10009353759
The objective of this study is to evaluate and model the yield risk associated with major agricultural commodities in the U.S. We are particularly concerned with the nonstationary nature of the yield distribution, which primarily arises because of technological progress and changing...
Persistent link: https://www.econbiz.de/10009024945
The objective of this study is to evaluate the risk associated with major agricultural commodity yields in the United States. We are particularly concerned with the nonstationary nature of the yield distribution, which arises primarily as a result of technological progress and changing...
Persistent link: https://www.econbiz.de/10009132463
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This paper proposes a novel optimal current given (OCG) maximum power point tracking (MPPT) control strategy based on the theory of power feedback and hill climb searching (HCS) for a permanent magnet direct drive wind energy conversion system (WECS). The presented strategy not only has the...
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In recent years, China has experienced many crises related to food safety which have challenged the legitimacy of food production companies and damaged the reputation of relevant state law enforcement agencies, as well as influenced consumer confidence. Based on recent interviews with 20 food...
Persistent link: https://www.econbiz.de/10010710691
Motivated by the optimality condition of a quantile loss minimization problem, a new family of closed-form density estimators based on truncated means is developed and found to achieve smaller mean squared errors in estimating the tails of the normal and gamma distributions when compared to the...
Persistent link: https://www.econbiz.de/10010602915
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