Results 21 to 30 of about 23,188 (119)
Read the free Plain Language Summary for this article on the Journal blog. Abstract Root activity creates unique microbial hotspots in the rhizosphere by influencing the metabolic activities of surrounding soil microorganisms, profoundly regulating the dynamics of soil organic carbon (SOC). However, how root economic strategies affect the formation and
Qiyu Tan +8 more
wiley +1 more source
Read the free Plain Language Summary for this article on the Journal blog. Abstract Permafrost thaw is reshaping nutrient dynamics in boreal forests, but its impacts on tree nutrient limitation and functional strategies remain poorly understood. Clarifying these responses is crucial for predicting the response of boreal forests to climate change.
Qiyue Fu +9 more
wiley +1 more source
高土壤电阻率地区柔性石墨复合接地材料与圆钢接地材料的有效长度对比研究
改善杆塔接地能够有效的降低输电线路雷击跳闸率,对于高土壤电阻率地区的杆塔,减小冲击接地电阻是降低雷击跳闸率的关键,而减小接地体冲击接地电阻可以通过延长接地体长度来实现,但是当长度超过一定值时,延长将不再有效。因此研究接地体的有效长度、选取有效长度更长的接地材料,对降低接地电阻有着重要意义。首先分析了接地体有效长度的物理意义,然后运用CDEGS仿真软件计算工程中常用的镀锌钢和柔性石墨复合材料水平接地体的工频接地电阻与接地体长度、冲击接地电阻与接地体长度之间的关系 ...
张昌 +5 more
doaj
文中基于电磁场基本理论,建立了开关柜工频磁场数学模型,采用有限元法对开关柜的磁感应强度进行了计算,分析了壳体、壳体厚度和磁导率等对开关柜磁感应强度分布和屏蔽效能的影响,并研究了开关柜柜外母排长度对磁感应强度分布的影响,结果表明:开关柜外壳和隔板对工频磁场具有明显的屏蔽作用,增大壳体磁导率和厚度均可提高开关柜整体的屏蔽效能,但当壳体磁导率大于1 000和厚度超过3 mm时,屏蔽效能增长幅度较小;柜外母排长度对开关柜周围磁场分布影响较小,但对柜体顶部磁场分布的影响较大 ...
王岩 +4 more
doaj
Abstract This paper examines the concept of non‐understandable in psychotherapy, based on the author's own play therapy with a boy with mild ASD (autism spectrum disorder). ASD is considered to belong to an area beyond comprehension, as psychotherapy is often deemed ineffective for it.
Toshio Kawai
wiley +1 more source
外引接地是降低风机接地电阻的常用措施,必须详细研究雷电流作用下风机外引接地的有效长度及其影响因素。利用PSCAD软件建立风机叶片、塔筒和外引接地系统模型,考虑冲击电流作用下外引水平接地体的散流特性和火花效应。讨论土壤电阻率、波头时间对外引接地有效长度的影响,拟合出相应函数关系。分析结果表明:采用外引接地措施能够降低接地体的冲击接地阻抗,但外引接地体存在一个明显的有效长度,超过有效长度后对降低冲击接地阻抗几乎没有效果。外引接地的有效长度随着波头时间和土壤电阻率的增加而增大,三者之间存在一个幂函数关系 ...
武振宇, 张克勇, 李晓航
doaj
The collective application of shorebird tracking data to conservation
Abstract Addressing urgent conservation issues, such as the drastic declines of North American migratory birds, requires creative, evidence‐based, efficient, and collaborative approaches. The abundance of over 50% of monitored North American shorebird populations has declined by over 50% since 1980. To address these declines, we developed a partnership
Autumn‐Lynn Harrison +71 more
wiley +1 more source
Perceived costs as drivers of wildlife management preferences in rural Tanzanian communities
Abstract Effectively managing human–wildlife interactions is crucial for fostering coexistence on shared landscapes. Management options are most effective when aligned with the preferences of people directly affected by wildlife, yet little is known about how socioecological factors influence these preferences.
Christian Kiffner +10 more
wiley +1 more source
基于三维地理信息系统的输电通道规划路径优选方法及应用 [PDF]
输电网规划是构建全球能源互联网的关键环节。为有效应对规划所面临的的空间跨度较大、规划周期长、传统的人工操作方式准确度差、效率低等问题,设计并实现了一种基于三维地理信息系统、具有可视化功能的输电通道规划路径优选工具,并可开展方案经济性比较,对不同参数进行灵敏度分析。通过实例验证,本方法可以有效辅助电网规划人员高效开展输电通道路径优选工作。
徐新智 +4 more
doaj +1 more source
Abstract Although significant biodiversity has been safeguarded by protected areas (PAs), biodiversity trends continue downward. Within the frameworks of the EU Biodiversity Strategy for 2030 and the new EU Restoration Regulation (2024), conserving critical biodiversity areas is essential.
George Kefalas +14 more
wiley +1 more source

