Results 31 to 40 of about 27,443 (153)
Using the capabilities approach to achieve people‐centered conservation
Conservation Biology, EarlyView.Abstract Top‐down interventions carried out by state and nonstate institutions to conserve biodiversity and improve the lives of forest‐proximate people (FPP) in the Global South tend to reflect economistic understandings of human well‐being. More progressive and people‐centered conservation projects are guided by normative visions of how the world ...
Arthur Rodrigues +4 more
wiley +1 more source
Shiyou jixie, 2011 针对输气干线优化设计属于约束非线性混合离散变量优化设计问题，采用以并行计算为基础的连续型Hopfield神经网络进行求解，将实际问题的优化解与神经网络的稳定状态相对应，把实际问题的优化过程映射为神经网络系统的演化过程。结果表明，CHNN算法能显著减小计算量，降低求解模型的计算复杂度，其优化效果优于模拟退火算法和方案比较法，可在保证各项约束的前提下，达到投资最小化，对输气干线优化设计和设计方案的优选具有一定的工程指导意义。
周昊, 段善宁, 周宁, 文涛
doaj
智能科学与技术学报, 2021 进化集成学习结合了集成学习和进化算法两方面的优势，并在机器学习、数据挖掘和模式识别等领域被广泛应用。首先对进化集成学习算法的理论基础、组成结构及分类情况进行了概述。然后根据进化算法在集成学习中的优化任务，从样本选择、特征选择、集成模型参数组合优化、集成模型结构优化以及集成模型融合策略优化几个方面对当前进化集成学习领域的一些代表性研究成果进行了详细的综述，并分析和总结了各种进化集成学习算法的特点。最后对现有的进化集成研究的优缺点进行探讨，并给出了未来的研究方向。
胡毅 +4 more
doaj
Optimizing biodiversity offsetting for habitat succession and colonization dynamics
Conservation Biology, EarlyView.Abstract Biodiversity offsetting aims to compensate for ecological losses from development through conservation and restoration. However, its long‐term outcomes under repeated impact–offset cycles remain uncertain. Using a conceptual forest succession model, we evaluated how offset outcomes are affected by interactions among compensation scale ...
Konstans Wells +4 more
wiley +1 more source
Shuitu Baochi Xuebao, 1994 该文给出了泥石流防治的流域自然地理环境优化效益的定义，阐述了流域自然地理环境优化的过程，并分析了流域自然地理环境优化效益与其它有关泥石流防治效益之间的关系。流域自然地理环境优化效益包括减灾效益，减洪效益和减沙效益三大部分，每种效益由若干指标构成。文章约出了流域自然地理环境优化指标体第，并对１０种优化效益指标了初步探讨。
罗鉴银 唐晓春
doaj +2 more sources
International Journal of Applied Linguistics, EarlyView.ABSTRACT Multilingual students in Anglophone universities often operate in survival mode. While translanguaging supports learning, critical gaps remain in understanding how translanguaging pedagogies transform and sustain motivation in English‐dominant contexts.
Melissa Jufenna Slamet, Julie Choi
wiley +1 more source
International Journal of Applied Linguistics, EarlyView.ABSTRACT This study examines how foreign language teachers’ beliefs about the medium of instruction and translanguaging evolve over time by revisiting three in‐service teachers twelve years after their initial interviews. Using a qualitative longitudinal design, the study traces how translanguaging was initially framed as pedagogically deficient but ...
Danping Wang
wiley +1 more source
International Journal of Applied Linguistics, EarlyView.ABSTRACT Collaborative writing has attracted increasing attention in English as a Foreign Language (EFL) instruction due to its potential to enhance learners’ writing competence. However, few studies have examined the comparative effects of collaborative versus independent writing on EFL learners’ individual performance, especially in higher‐order ...
Ting Huang, Chenze Wu, Wenkang Zhang
wiley +1 more source
Jianzhu Gangjiegou Jinzhan, 2011 本文采用Matlab语言编写张弦桁架结构模型程序,对张弦桁架在各荷载工况下的受力性能进行了分析;首先采用Matlab语言编写了张弦桁架结构各种约束条件程序,同时编写了基于离散变量的张弦桁架优化设计程序,采用基于离散变量的一维搜索优化算法对拟定的张弦桁架计算模型进行了优化,优化结果表明基于离散变量的一维搜索优化算法,由于目标函数和约束函数的单调性质,得到的解显然是最优解,而且优化结果可以直接应用于结构实际设计。最后,在确保编写的离散变量优化程序正确的前提下,对不同矢高的张弦桁架结构进行了离散变量优化设计 ...
刘树堂, 侯贯泽, 王林建
doaj
International Journal of Applied Linguistics, EarlyView.ABSTRACT Gamification has been increasingly implemented for language learning purposes across the globe. However, there remains unknown regarding how the change in gamification design might maximize students’ language learning outcomes and engagement.
Shen Qiao +2 more
wiley +1 more source