Results 21 to 30 of about 6,923 (169)
Research on Correction of Near-Surface Elastic Wave Forward Modelling Based on Enlarged Cell Technique [PDF]
, 2016 地震学中的弹性波正演模拟是一件重要且不可缺少的事情，并且正演模拟的精度和速度往往直接决定了地球物理勘探的精度和速度。实际地球物理勘探应用中（如石油勘探、自然灾害预测），研究对象的巨大规模决定了人们对正演模拟的运行速度要求较高。时域有限差分（Finite-DifferenceTime-Domain，FDTD）方法是地震学中的一个稳定、灵活和有效的模拟工具，已经被广泛地开发和应用，并取得了极大的成功。交错网格时域有限差分（Staggered-GridFDTD）方法极其易并行 ...
魏松林
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Prospects and perils in the geospatial turn of conservation
Conservation Biology, Volume 39, Issue 6, December 2025.Abstract Conservation has embraced advances in big data and related digital technologies as key to preventing biodiversity loss, especially in the identification of areas of conservation priority based on spatial data, which we call the big geospatial data turn.
Jocelyne Shimin Sze, Laura Aileen Sauls
wiley +1 more source
International Journal of Applied Linguistics, Volume 35, Issue 4, Page 2063-2077, November 2025.ABSTRACT Despite the efforts devoted to improving L2 writing pedagogy to promote student writing development, students’ dissatisfactory writing development and outcomes are still reported. Investigating student learning preparedness to navigate L2 writing curriculum transitions may generate new understandings and provide an alternative explanation for ...
Yu Zhou, Shulin Yu
wiley +1 more source
, 2018 以某城市互通立交桥为例,采用有限元方法计算,分析了不同曲率半径对小半径匝道弯桥受力的影响以及对小半径匝道弯桥抗倾覆性能的影响,并分析了支座反力、支座脱空影响、梁体转角、抗倾覆稳定系数计算对比及关键状态。福建省交通运输科技项目 ...
李云州, 李绍松, 裘是
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Using online reports of seahorse seizures to track their illegal trade
Conservation Biology, Volume 39, Issue 5, October 2025.Abstract Illegal wildlife trade (IWT) is a persistent and extensive threat to global biodiversity. Hundreds of marine fish species are subject to regulation under the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES), but it is unclear how much protection species gain from CITES because information on marine fish ...
Sarah J. Foster +3 more
wiley +1 more source
Nonlinear finite element analysis for seismic performance of high-strength concrete beam-column joints with new reinforcement details [PDF]
, 2006 Because the factors that affect the behavior of the beam-column joints are complicated, an experimental study alone is not sufficient. Therefore, a nonlinear finite element analysis was conducted to provide better understanding of the performance of the ...
Gan, L, Li, J, Pam, HJ
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Sexuality, Gender &Policy, Volume 8, Issue 3, August 2025.ABSTRACT Spanish universities are currently applying different protocols designed to facilitate name and/or gender changes in the documentation of trans, nonbinary, and intersex individuals in their education communities in compliance with the legislation in force. These policies aim to address the discrimination experienced by these people in everyday
Lucas Platero +3 more
wiley +1 more source
Study of GHz Surface Acoustic Wave Humidty Sensor Using Nanostructured Materials [PDF]
, 2016 随着物联网应用的不断扩展，需要大量传感器节点组成无线传感网络以实现未来万物互联的目标。其中，湿度测量器件在智能家居、气象、工业控制等领域是最为广泛和基础的传感器节点。为了实现无线传感网络，现有的电阻、电容型传感器件需要独立的电源系统持续供电，而在电池容量有限的条件下，器件需要采用占空比方式工作，即在高功耗的传感工作状态之间加入待机模式，以减小传感器节点的总功耗。由于待机模式的存在，无法对整个环境状态进行实时、无缝的检测，且由于构成节点的传感元件一般属于相对高功耗的器件，电池寿命始终有限。声表面波 ...
刘源
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Towards a global understanding of tree mortality
New Phytologist, Volume 245, Issue 6, Page 2377-2392, March 2025.Summary Rates of tree mortality are increasing globally, with implications for forests and climate. Yet, how and why these trends vary globally remain unknown. Developing a comprehensive assessment of global tree mortality will require systematically integrating data from ground‐based long‐term forest monitoring with large‐scale remote sensing.
International Tree Mortality Network +114 more
wiley +1 more source
Thermal Effect Mechanism and Surface Topography of the Micro-EDM Workpiece [PDF]
, 2015 微细电火花加工具有可以非接触加工、三维加工能力以及设备简单、可实施性强、加工性能与材料硬度强度无关等优点。这种方法能加工处理的材料非常广泛，不仅可以加工各种性能优良的金属、合金，还可以加工陶瓷、硅等半导体材料。因此，微细电火花加工在复杂微小零件的制作中有着独特的优越性，也得到了广泛的应用。目前，微细电火花加工的理论研究和工艺研究还存在很多问题，尤其在蚀除过程中，现在普遍采用普通电火花的加工机理来说明。微细电火花加工具有放电时间短、放电通道半径小及能量密度高等特点，所以其放电过程与普通电火花明显不同。因此，
王春梅
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