Results 31 to 40 of about 14,197 (189)
Conservation Biology, EarlyView.Abstract Robust estimates of the magnitude of protected species bycatch are essential for effective fisheries management and marine conservation. Existing bycatch estimation methods typically struggle to accurately and precisely estimate the bycatch of rare species as a result of the statistical assumptions necessary to overcome infrequent encounters ...
Christopher Long +3 more
wiley +1 more source
Shuitu Baochi Xuebao, 2005 初步建立了基于作物模型的农田水分管理决策支持系统(DSSFWM) ,着重阐述了系统的实现原理,包括系统的结构和功能、系统管理决策目标的确立和水分管理决策的机制。以郑州冬小麦生长季水分管理为对象,对当地1991,1992年冬小麦生长季优化灌溉制度决策进行了实例分析。结果表明冬前分蘖期、返青期和拔节期灌三水的灌溉制度兼顾了节水(灌水量少)、高产、高效(效益费用比值较高)的多目标 ...
朱艳 胡继超 曹卫星 张佳宝
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Risk reduction, rangeland use, and the future of human–carnivore coexistence
Conservation Biology, EarlyView.Abstract Efforts to reduce livestock losses to large carnivores are widely regarded as essential for promoting human–carnivore coexistence. Predator‐proof enclosures, compensation programs, improved livestock guarding, and real‐time predator alert systems can reduce depredation and retaliatory killing while enhancing pastoralist livelihoods.
Craig Packer
wiley +1 more source
Conservation Biology, EarlyView.Abstract Global farmland biodiversity is declining rapidly, threatening both natural ecosystems and agricultural production. Although agri‐environmental schemes incentivize farmers to adopt environmentally friendly measures, the spatial mismatch between their local implementation and the landscape‐scale habitat requirements of farmland species has been
Annika L. Hass +5 more
wiley +1 more source
四川大学学报. 自然科学版, 2005 炮兵火力决策问题是NP难题,用一般算法难以实现.运用遗传算法对炮兵火力决策进行了分析研究,具体步骤包括:编码和生成祖先群体、计算基因个体适应度和选择操作、交叉及变异操作.通过对这一问题的模拟仿真,获得了较优的决策方案.
刘淑东, 管群
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Zhejiang Daxue xuebao. Lixue banIn the multi-attribute decision-making under the probabilistic dual hesitation fuzzy environment, the decision-making process generally does not account for the group pressure and polarization the decision-making experts received in the discussion.
袁畅(YUAN Chang) +4 more
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Integrating biodiversity protection into emergency management
Conservation Biology, EarlyView.Abstract Megafires have emerged as a considerable threat to biodiversity conservation worldwide. The biodiversity‐focused response and recovery actions that occurred during Australia's 2019/2020 Black Summer bushfires demonstrate that it is possible to protect biodiversity alongside human life and property during disasters.
Jacey Roche Cerda +2 more
wiley +1 more source
Gaoya dianqi, 2010 电磁环境是制约电网建设和发展的一个重要因素。研究输电线路电磁环境影响因素及其防护对策,可以为输电线路的设计提供技术依据,使人们正确认识输电线路电磁环境并合理选择防护对策。为此,笔者基于等效电荷法,研究了输电线路对地高度、双回路导线相序布置、等效半径、单回路导线布置方式、相间距离等因素对500kV超高压输电电磁环境的影响,并根据研究结论和相关研究成果提出了主动防护和被动防护等具体的防护对策。
王广周 +4 more
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Integrating migratory connectivity data into the conservation of Australian sharks and rays
Conservation Biology, EarlyView.Abstract Understanding migratory connectivity is important for conserving highly mobile marine species facing escalating threats. Establishing baseline information on migratory connectivity is necessary for identifying species and regions requiring transboundary cooperation for their conservation.
Diego F. Bezerra +9 more
wiley +1 more source
Guangtongxin yanjiu, 2017 新型时域混合调制（TDHM）技术可以提高光通道的频谱使用效率,有效地提高光网络的容量。针对共享备份路径保护（SBPP）技术下的波分复用（WDM）光网络,我们结合TDHM技术研究了路由和波长分配（RWA）问题,并提出了一种基于最佳路径对策略的优化技术。仿真结果表明,与传统的最短路径策略优化技术相比,提出的最佳路径对策略能使被保护的网络容量提高30%,从而验证了TDHM技术对提高光网络传输容量的有效性。
陆冬磊 +4 more
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