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狗狗生活里的N件物品
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作者 十五 Alicia Rius 《宠物世界》 2019年第7期34-35,共2页
美国|摄影师|Alicia Rius和人类一样,狗狗也会对它们身边出现过的东西产生情感,包括玩具、零食、衣服和牵引绳在内,通过这些日常物品,我们也能观察出每只狗狗不一样的生活状态。来自美国加州的摄影师Alicia Rius便以此为灵感,推出了系... 美国|摄影师|Alicia Rius和人类一样,狗狗也会对它们身边出现过的东西产生情感,包括玩具、零食、衣服和牵引绳在内,通过这些日常物品,我们也能观察出每只狗狗不一样的生活状态。来自美国加州的摄影师Alicia Rius便以此为灵感,推出了系列摄影作品'A Dog’s Life'。 展开更多
关键词 玩具 件物品 摄影师 狗狗 生活 美国 情感 摄影 物品
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求解组合拍卖NP问题的遗传算法 被引量:5
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作者 管春 胡军 《微计算机信息》 北大核心 2006年第06X期194-195,198,共3页
多智能体系统采用多件物品组合拍卖协商协议能高效地实现组合资源及多任务的分配,但在传统组合拍卖协商协议中拍卖方选择买方以实现最大赢利的过程是一个NP问题,本文提出了利用改进的遗传算法来求解该NP问题的新方法,并应用于一个企业... 多智能体系统采用多件物品组合拍卖协商协议能高效地实现组合资源及多任务的分配,但在传统组合拍卖协商协议中拍卖方选择买方以实现最大赢利的过程是一个NP问题,本文提出了利用改进的遗传算法来求解该NP问题的新方法,并应用于一个企业供应链管理的自动协商交易系统中。实验表明,该算法具有较优的性能。 展开更多
关键词 遗传算法 件物品组合拍卖 协商协议
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自动化生产线中速度的同步控制原理及应用 被引量:4
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作者 曹湧 《制造业自动化》 2004年第3期44-47,共4页
介绍了在成件物品的自动化生产线中速度同步控制的主要应用形式,总结归纳了其常用的实现方法,并结合具体实例深入阐述了自动化生产线中两类速度同步问题的控制原理及其电控系统设计的基本思路。
关键词 件物品 自动化生产线 速度同步控制 电控系统 单链多机同步控制 多链同步控制
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DD型气垫带式输送机 被引量:6
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作者 杨宏胜 《建材技术与应用》 1999年第2期39-41,共3页
关键词 气垫机 后输送带 气垫带式输送机 件物品 输送倾角 散状物料 气室 气垫支承 堆积密度 托辊
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The Contingent Valuation Method for Thessaloniki's Aesthetic Pollution in Greece
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作者 Odysseas Kopsidas 《Journal of Environmental Science and Engineering(B)》 2017年第6期339-343,共5页
The purpose of this study is to provide an evaluation of the possible criteria used by the people of Thessaloniki for the evaluation of public goods and the investigation of the benefits of the conservation and restor... The purpose of this study is to provide an evaluation of the possible criteria used by the people of Thessaloniki for the evaluation of public goods and the investigation of the benefits of the conservation and restoration of city structures affected by carbon monoxide. These benefits are expressed in monetary units by using the CVM (Contingent Valuation Method). The maintenance of the urban environment often entails excessive costs paid by the people through taxation. A city free of aesthetic pollution results in an increase in tourism. A portion of taxation paid by the citizens is allocated to cleaning the city. An increase in tourism provides the government with additional revenue through VAT (Value Added Taxes). The main findings show that in a large proportion, 28% of the interviewees are willing to pay, but those that are willing to pay significant amounts tend to prefer mild interventions to the buildings, while those (42%) that agree with minimal to null amount demand radical intervention. The latter group, also, considers any contribution of theirs to restoration as unfair, judging that this expenditure should be covered exclusively by the State. Last but not least, from a sociopsychological point of view, this attitude could be attributed to extreme personalities which tend to prefer more holistic and direct solutions (i.e., no mixed strategy involving people and the State is acceptable by interviewees who considered themselves as having no further obligations after regular tax-paying); as a result, they think that the State is exclusively responsible to resolve the situation. 展开更多
关键词 Public goods WTP (Willingness To Pay) CVM (Contingent Valuation Method) taxation.
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