Results 21 to 30 of about 27,443 (153)
Taxonomic and functional diversity of urban bees of the world
Conservation Biology, EarlyView.Abstract Bees play a pivotal role in terrestrial environments. Urbanization can affect these organisms and the ecosystem services they provide. However, knowledge of the global diversity of urban bees is limited. Thus, we summarized data on urban bee species identities and occurrences; compared distributions of all bees with those found in urban ...
João C. F. Cardoso +10 more
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
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Emerging applications of large language models in ecology and conservation science
Conservation Biology, EarlyView.Abstract Large language models (LLMs) mark a major development in artificial intelligence, with potentially transformative implications for ecology and conservation science. Built on advanced deep‐learning architectures, these models can support a wide range of tasks. We reviewed emerging applications of LLMs, drawing on the wider scientific literature
Christos Mammides +5 more
wiley +1 more source
Guangtongxin yanjiu, 2000 在 WDM全光网的波长数优化设计中 ,本文采用最长路径优先的波长分配策略对 Naohide Nagatsu等人提出的 WP优化方案进行了改进。改进后的方案比原 WP优化方案更加简洁 ,并且仍然能够达到原 WP优化方案的优化效果。
夏俊, 吴志坚
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Conservation Biology, EarlyView.Abstract Reversing ongoing biodiversity loss requires effectively managing anthropogenic threats. Although conservation actions can mitigate these threats, prioritizing and targeting such actions remain challenging because species respond differently depending on the nature of the threats and their biological traits.
Camila Guerrero‐Pineda +3 more
wiley +1 more source
Gongye shui chuli现有的污水处理系统存在自动化水平低、运行成本高和出水不稳定等问题，优化算法的应用可以提高水处理过程的处理效率和自动化控制水平。综述了污水处理系统几种主要的优化算法，包括遗传算法（GA）、粒子群优化算法（PSO）、随机森林（RF）、人工神经网络（ANN）、模糊逻辑控制（FLC）和混合优化算法，并介绍了各类优化算法的优缺点及适用范围，随后讨论了优化算法在水质异常数据监测与补偿、运行参数预测、控制参数优化和多目标优化控制等不同水处理环节中的应用。优化算法的应用提升了污水处理的自动化控制水平、出水质量 ...
刘良才 +8 more
doaj +2 more sources
Conservation Biology, EarlyView.Abstract Modeling species distributions in dynamic pelagic environments remains challenging, particularly for wide‐ranging and highly mobile species when there is limited guidance on model performance. This limitation constrains the effective use of species distribution models (SDMs) in marine conservation, where robust and transferable predictions are
E. Pasanisi +32 more
wiley +1 more source
Subspecies taxonomy reflects social and geographic patterns of taxonomic effort in tetrapods
Conservation Biology, EarlyView.Abstract Subspecies have been used in conservation biology to account for intraspecific patterns in genetic diversity, which is crucial to long‐term population viability. Although over 3200 subspecies are currently assessed by the International Union for Conservation of Nature Red List, their biological relevance remains controversial.
Jhonny J. M. Guedes +3 more
wiley +1 more source
Shiyou jixie, 2012 针对目标函数的钻压优化和BP神经网络的钻压优化方法存在的不足，建立了动态成本目标函数，并利用遗传算法对动态成本目标函数进行优化，最后应用实例对优化送钻在成本上的优势进行了验证。根据建立的动态成本目标函数和钻井采集的实时数据，利用非线性回归理论完成待优化的成本目标函数参数的求取。优化结果表明，优化钻压钻井方式有效延长了钻头寿命，缩短了起下钻时间，节省了钻井成本；与恒钻压钻井方式相比，优化钻压钻井方式每米成本上升较慢。
张奇志, 付勃
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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