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基于机器人群的主动传感器网络自组织的运动规划 被引量:3
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作者 樊玮虹 刘云辉 +1 位作者 周东翔 蔡宣平 《自动化学报》 EI CSCD 北大核心 2010年第10期1409-1416,共8页
主动传感器网络的自组织通常要求移动节点群(机器人群)通过障碍物环境移动到指定地点后,重新调整并按预定布局组网.在网络的自组织过程中要保证每个移动节点(机器人)与整个网络之间的连通性.在对移动机器人的保持连通性进行优化的基础上... 主动传感器网络的自组织通常要求移动节点群(机器人群)通过障碍物环境移动到指定地点后,重新调整并按预定布局组网.在网络的自组织过程中要保证每个移动节点(机器人)与整个网络之间的连通性.在对移动机器人的保持连通性进行优化的基础上,提出了单步位置预测与群体势场相结合的分布式运动规划方法进行主动传感器网络的部署和重置,证明了机器人运动控制的稳定性和网络的连通性保持,进行了有和无障碍物环境下超过40个机器人的仿真,结果表明该方法适用于大规模的主动传感器网络重置,并对不同规模的网络具有可扩展性. 展开更多
关键词 主动传感器网络 自组织 保持连通性 单步位置预测 群体势场 稳定性分析
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The Effect of Childhood Obesity on Social Welfare
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作者 Robert Sandor Szucs Zsolt Csapo 《Journal of Modern Accounting and Auditing》 2011年第7期758-766,共9页
The young generation is the most influenced and vulnerable segment of the market. Food with high level of fat, sugar and/or salt are popularised for this segment. At the same time nearly seven people die of obesity or... The young generation is the most influenced and vulnerable segment of the market. Food with high level of fat, sugar and/or salt are popularised for this segment. At the same time nearly seven people die of obesity or from complications of obesity in Hungary each hour-one every nine minutes. Approximately 119 million Americans, or 64.5%, of adult Americans are either overweight or obese. 17.5 million obese young person live in the European Union. The result is the drastic elevation of the hygienic expenses. The average health care cost of overweight persons is higher by 42% than normal bodyweight ones. Per capita spending on fast foods is unbelievable and rising. The value of average spending was 2.5 E in 2002. Fast food sales continue to boom despite warnings about obesity. The consumption of these products can contribute to the increased level of childhood obesity. 12% of young person's visited a fast food restaurant at least with a weekly regularity. The value is 16.9% in case of young men higher than in case of young ladies (8.1%) to our research. We can state the respondents underestimate the costs of fast foods. 展开更多
关键词 fast food childhood obesity COST YOUTH
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