Results 31 to 40 of about 23,188 (119)
Dianci bileiqi, 2023 山区输电线路杆塔所处位置通常土壤电阻率高且空间有限，故散流效果差，降阻比较困难。针对这些问题，本研究使用CDEGS软件设计了立体均压环结构接地体，在不同激励电流类型、土壤电阻率、接地体深度和水平射线长度情况下，进行了冲击特性的分析。仿真结果表明：在工频电流和雷电流作用下，该接地体都能够具有良好的均压和散流效果。相同土壤电阻率下，立体均压环接地体冲击接地电阻比传统圆环形接地体冲击接地电阻至少可较低8.9%,最大跨步电压至少可降低16.0%,在高土壤电阻率下，降低幅度增大 ...
周西杰 +4 more
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Institutional lessons from the Nordic management model
Conservation Biology, EarlyView.Abstract To improve wildlife management outcomes, in terms of reaching management goals and increasing legitimacy, Nordic countries have developed institutional systems involving stakeholders that aim for a more inclusive and participatory model.
Jens Nilsson +2 more
wiley +1 more source
Effects of restoration practices on biodiversity in temperate and boreal forests
Conservation Biology, EarlyView.Abstract Several restoration practices are used to mitigate and compensate for the negative effects of large‐scale forestry on biodiversity in temperate and boreal forests. A comprehensive synthesis of the benefits of these practices across taxa is missing. We conducted a systematic review and meta‐analysis on this topic.
Malin Tälle +2 more
wiley +1 more source
Guangtongxin yanjiu, 2012 对监测区域进行有效地覆盖以及最大限度延长网络生存周期是无线传感器网络研究的重点课题之一。为此,提出了一种基于节点调度策略的能量有效覆盖算法,该算法通过泊松分布模型构造节点概率密度公式,依照节点密度公式对所关注的目标进行有效覆盖;另一方面,通过节点自身状态调度机制更新以及对邻居节点进行匹配调度的动态转换,使得传感器节点剩余能量与节点消耗能量趋于平衡,从而达到延长网络生存周期。仿真实验结果表明,该算法可实现对监测区域的有效覆盖,同时优化了网络资源的配置,延长了网络生存周期。
孙泽宇, 赵国增
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Assessing and strengthening community‐based coastal governance
Conservation Biology, EarlyView.Abstract Community‐based coastal governance is essential for biodiversity conservation and sustainable livelihoods, yet many communities continue to face significant challenges in establishing and sustaining effective governance systems. We sought to improve understanding of the current status of community‐based coastal governance across five countries
Mark Andrachuk +21 more
wiley +1 more source
International Journal of Applied Linguistics, EarlyView.ABSTRACT This study investigates how the learner‐related factors of language dominance, encompassing language history, proficiency, use, and attitude, modulate congruency effects in multi‐word unit (MWU) processing among early bilinguals. Seventy Cantonese–Putonghua bilinguals completed lexical decision tasks measuring reaction time and accuracy for ...
Mingjia Cai, Yuan Liang
wiley +1 more source
四川大学学报. 自然科学版, 2001 作者在室内控温条件下 ,研究了具瘤长须螨 (Agistemusexsertus)的生长发育、繁殖及捕食习性 .研究结果表明 ,其生长发育历期长短与温度有密切关系 ,全生育期发育起点为 6 .8℃ ,需有效积温 2 82 .6日度 ,每雌平均卵量及内禀增长能力均受到温度的制约 ,日平均卵量与雌成螨的年龄有关 .该螨可捕食叶螨的各种虫态 ,但对螨卵有明显的选择捕食习性 ,各温度下的功能反应参数表明 ,30 ...
岳碧松, 邹方东, 徐柳
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The Development and Validation of the Chinese Vocabulary Levels Test
International Journal of Applied Linguistics, EarlyView.ABSTRACT In response to the increasing need for effective Chinese vocabulary assessments, this study developed the Chinese Vocabulary Levels Test (CVLT), a test designed for intermediate‐level Chinese as a second or foreign language (CSL/FL) learners, based on the vocabulary lists (levels 4–6) from the Chinese Proficiency Grading Standards for ...
Shiwei Qi, Ailan Fu
wiley +1 more source
Policy Studies Journal, Volume 54, Issue 3, August 2026.ABSTRACT Despite extensive research on policy diffusion, the ways in which policy attention influences this process remain underexplored. This study addressed this gap by distinguishing between three types of policy attention—political speeches, policy issuance and field visits—and investigating their differential impacts when delivered by central and ...
Xiangning Chen, Yahua Wang
wiley +1 more source
Shuitu Baochi Xuebao, 2019 为了探究不同灌溉模式施加不同改良剂对河套灌区重度盐渍土的改良效果，设置秸秆深埋（SL）、石膏+有机肥（SF）、对照（CK）3个处理，对河套灌区重度盐渍土土壤盐分在0-70 cm剖面上的分布特点进行研究。结果表明：不同灌溉模式，SL和SF处理在0-15 cm土层均有效降低土壤pH，随改良时间延长改良深度增加pH持续降低，有一定的长效性，滴灌SL与SF处理pH较CK分别下降0.35，0.49，黄灌下降0.42，1.33，对30-70 cm土层影响较小。SF处理碱化度第2年下降达43%，SL处理为40 ...
张宇晨 +5 more
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