Results 11 to 20 of about 25,946 (168)
Biodiversity‐driven spatial conservation planning to delineate temporally stable regions
Conservation Biology, EarlyView.Abstract The accelerating loss of biodiversity underscores the critical need for effective conservation strategies, particularly in the face of climate change and anthropogenic pressures. We devised a conservation planning framework that adopts a temporal stacking approach to species distribution models and landscape connectivity analyses. These models
Mattia Iannella +5 more
wiley +1 more source
Drivers of bat researchers’ intent to adopt field hygiene practices
Conservation Biology, EarlyView.Abstract Infectious disease is a growing threat to wildlife, with zoonotic transmission most likely at the human–wildlife interface. One underappreciated activity at this interface is fieldwork with wild animals, but associated risks can be mitigated through field hygiene (FH) practices, such as using personal protective equipment and other appropriate
Joanna L. Coleman +6 more
wiley +1 more source
The Research on Wind-induced Vibration Control of Large Span Roof Structures with Different Damping Systems and Optimization of MTMD Damping System [PDF]
, 2016 近年来，随着国内经济实力的增强和社会发展的需要，大跨空间结构在我国得到迅速发展，且跨度越来越大。由于大跨空间结构具有质量轻、阻尼小、柔性大、自振频率低等特点，因而对风荷载的作用很敏感。在风荷载的作用下，结构会产生较大的变形，严重降低结构的安全性和舒适性。为抑制结构的动力响应，学者们提出在结构适当位置处安装控制装置的概念。目前，高层建筑在风荷载作用下的振动控制研究已取得丰硕成果，并有大量的工程应用实例。然而，国内外学者对大跨空间结构的风振控制研究相对较少，因此有必要开展大跨空间结构的风振控制研究 ...
邵辉
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From Clueless to Confident: How ChatGPT Transforms Academic Writing in Chinese as a Second Language
International Journal of Applied Linguistics, EarlyView.ABSTRACT Generative artificial intelligence (GenAI) has demonstrated its potential to enhance the quality of second‐language (L2) academic writing. This study used a qualitative approach comprising analysis of ChatGPT usage‐history screenshots, written assignments, and semi‐structured interview data on students’ use of GenAI in their L2 Chinese ...
Lanfang Sun +4 more
wiley +1 more source
, 2018 几何非线性是土木工程结构在强震作用下动力时程分析过程中必要的考虑因素。该文基于数值子结构方法,结合平面Euler-Bernoulli梁柱单元的几何大变形理论,将平面框架结构的非线性分析转化为线弹性主结构的弹性分析,并提出材料和几何非线性修正力项,作为等效为外荷载项施加于主结构以考虑结构的双非线性。最后,对一平面钢框架结构进行地震动力时程分析,分析结果表明考虑了双非线性的数值子结构方法具有良好的精确性与高效性;同时,几何非线性对结构动力响应具有重要影响。国家自然科学基金项目(51261120376 ...
古泉, 孙宝印, 张沛洲, 欧进萍
core
International Journal of Applied Linguistics, EarlyView.ABSTRACT This study conducted linguistic analyses of the written corrective feedback (WCF) for Chinese as a second language (CSL) provided by chat generative pre‐trained transformer (ChatGPT) and human teachers (including preservice teachers and senior teachers).
Ling Zhang +2 more
wiley +1 more source
Process analysis of a heavy rainfall happened in Wenzhou in August, 2014(2014年8月发生于温州市的一次大暴雨过程分析)
Zhejiang Daxue xuebao. Lixue ban, 2015 对2014年8月19日08：00至20日08：00温州市大暴雨过程做技术总结.通过对500 hPa环流分析，利用欧洲中心850 hPa和1 000 hPa细网格风场产品以及雷达拼图、实况雨量分析发现，该次过程为高空槽和低层偏南风急流控制下的系统性强降水，降水的时空分布极不均匀.该次降水过程分为19日白天和夜间2个时段，19日白天的暴雨过程由低层850 hPa中尺度辐合线所造成，辐合线上，有较强的风速辐合.19日夜间的暴雨过程由1 000 hPa风向和风速的辐合造成.该次降水过程降水时段集中、雨强强 ...
SIBo(司波) +4 more
doaj +1 more source
Efficient Simulation Methods for Reinforced Concrete Columns with Encased Steel in High-rise Building Structures [PDF]
, 2016 型钢混凝土柱在建筑结构中往往是主要的承重构件之一，使用合适的数值模型分析其力学性能对高层结构抗震分析有重要的意义。本文综述了目前文献中已有的低含钢率恢复力模型相关研究，分析了其理论、计算流程和算法，并在通用有限元软件OpenSees中编程实现。本文详细推导了模型中基本参数的确定方法，并用于模拟实际高层建筑结构中的型钢混凝土柱。首先，本文用恢复力模型模拟了单根型钢混凝土柱的试验，通过对比验证了模型的精度，研究了其计算效率。其次，本文将恢复力模型用于理想32层高层结构中的单排型钢混凝土构件静、动力分析中 ...
曾志弘
core
Learner‐Focused Strategy Instruction From the Teachers’ and the Learners’ Perspective
International Journal of Applied Linguistics, EarlyView.ABSTRACT Numerous large‐scale quantitative studies have been conducted to yield a macro‐level picture of the effectiveness of strategy instruction. However, little is understood about learners' actual processing of strategy instruction and interaction with the teachers delivering it.
Isobel Kai‐Hui Wang, Andrew D. Cohen
wiley +1 more source
Dianci bileiqi, 2020 针对现有雷电感应过电压数值计算模型工程适用性不强的问题,分析了雷电感应过电压产生的物理过程,基于时变电磁场理论提出了架空线路雷电回击入射场与感应场的电磁耦合关系,推导得出了架空线路雷电感应过电压时域波形的解析计算模型。计算分析了雷电流幅值、回击速度、雷电流波形对架空配电线路感应雷过电压时域波形的影响规律,结果表明:随着回击放电速度的增加,相同条件下感应过电压幅值有所降低且波头时间增加,当回击电流波前时间增加时,感应过电压幅值也显著降低 ...
汪进锋 +6 more
doaj