Results 21 to 30 of about 65,518 (228)
Strengthening community‐based fisheries monitoring programs with Indigenous perspectives
Conservation Biology, EarlyView.Abstract Community‐based monitoring (CBM) programs are increasingly recognized as essential for adaptive environmental stewardship. Yet, the CBM literature often highlights successful cases and privileges evaluations by external experts over those of community members themselves.
Kanwaljeet Dewan +2 more
wiley +1 more source
Study on Optimization of Purchasing Management for Company Y [PDF]
, 2016 在复杂多变的市场环境下，企业要想在激烈的市场竞争中生存，就必须制定符合自身的战略，获得竞争优势。采购是供应链中的重要一环，影响整个企业的生产过程，是保障生产流畅的重要前提。采购管理是企业生产经营管理活动的出发点，对企业的成本和利润产生直接影响。通过采购管理优化，能够帮助企业达到降低采购成本，改进供应商质量的目的，对企业来说是非常重要的。 本文以优化Y公司的采购管理为指导，对Y公司采购管理活动进行了深入的分析，剖析了Y公司在采购管理活动中存在的各类问题，并借助系统化的优化方法提出了Y公司采购管理优化方案 ...
卢绍红
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Conservation Biology, EarlyView.Abstract Prioritization in conservation is crucial for the development of efficient and effective decision‐making policies. For many decades, the importance of some species and their habitats has been assessed and applied in conservation legislation, but bats and their diurnal roosts have ofbeen overlooked.
David López‐Bosch +6 more
wiley +1 more source
Business Process Improvement of A Community-based E-commerce Company [PDF]
, 2016 在以顾客为中心的时代，企业业务流程为企业创造价值，是企业赢得竞争的重要因素。流程优化可使得企业信息流畅通，提升企业和供应链运营的效率，降低运营成本，加快市场响应速度。对于创业企业而言，企业流程管理从设计新流程到流程成熟，需要不断对企业原有流程全面分析，结合企业运营中暴露出的问题进行流程优化，不断推进流程优化以实现标准化的流程管理，这也是企业实施精益管理思想的重要内容。对生鲜电商企业而言，企业竞争中更需要关注市场响应的速度，快速响应的业务流程是赢得竞争和市场的关键性因素 ...
乐华珍
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The collective application of shorebird tracking data to conservation
Conservation Biology, EarlyView.Abstract Addressing urgent conservation issues, such as the drastic declines of North American migratory birds, requires creative, evidence‐based, efficient, and collaborative approaches. The abundance of over 50% of monitored North American shorebird populations has declined by over 50% since 1980. To address these declines, we developed a partnership
Autumn‐Lynn Harrison +71 more
wiley +1 more source
Dianci bileiqi, 2015 分析了绝缘子的结构,选择钢脚作为优化对象,对钢脚结构进行分析,建立钢脚优化目标函数,采用非线性最小二乘法计算,编制了优化算法程序,利用Matlab对绝缘子钢脚进行优化,并对优化结果进行分析处理,根据优化结果对钢脚进行试制和装配,对其进行机电拉伸破坏负荷试验。通过优化设计,钢脚头部尺寸减小,优化后的钢脚可节约钢材,且通过机电拉伸破坏负荷试验进一步证明了优化结果的科学合理性,研究具有较强的工程实践意义。
闫洪波, 李强, 高峻峰, 张耀辰
doaj
Jianzhu Gangjiegou Jinzhan, 2022 提出了一个考虑内力重分布影响的高层结构减震构件单步优化法，为高层结构减震构件的优化设计提供了一个单步、高效的方法。首先，考察了内力重分布对单自由度并联体系比虚应变能的影响规律。然后提出了考虑并联关系的目标比虚应变能修正系数用以解决已有的单步优化法没有考虑超静定结构内力重分布的问题，并用算例说明优化结果的合理性。然后，作者用非减震构件的单步优化法去优化减震构件，并结合减震性能曲线提出了考虑内力重分布影响的高层结构的减震构件的单步优化法。最后通过算例对所提出的优化法进行验证 ...
陈荣 +4 more
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Realization of Pan Jiazheng′s extremum principle with optimization methods [PDF]
, 2017 2007-2008 > Academic research: refereed > Publication in refereed journalVersion of ...
Cheng, YM, Wang, JA, Zhao, ZH
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How much biotic nativeness matters across human demographic groups
Conservation Biology, EarlyView.Abstract Many central concepts of conservation biology—such as nativeness—are structured by ecological and social factors. However, the social consequences of using these concepts to make conservation decisions remain inadequately understood. Some researchers argue that nativeness, rather than acting as an objective proxy for important ecological ...
Harold N. Eyster, Rachelle K. Gould
wiley +1 more source
Jianzhu Gangjiegou Jinzhan, 2014 群智能优化算法已被证实可以用于解决实际工程的优化问题。水循环算法可对约束问题进行求解。基于自然界中水循环过程提出的一种新型智能优化算法———水循环算法(WCA),研究了其应用于空间桁架结构优化设计问题的可行性及有效性,论文对两个空间桁架结构进行了截面优化计算分析,并与已有文献优化结果进行了比较,研究结果表明:WCA优化算法相对于群搜索算法(GSO)、启发式粒子群优化算法(HPSO)等优化算法能够提供更快的收敛速度,收敛结果也更好。
章纯, 刘锋, 廖国维, 李丽娟
doaj