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Research on the Interaction Between Multi-Circuit Shared HVDC Grounding Electrodes [PDF]
, 2023 [Introduction] Unlike the independent grounding electrode, shared earth electrode is connected to multiple DC (Direct Current) systems, and its parameters and operation mode need to be determined by each system connected to it.
Wen WANG, Yu LIU
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Assigning trend‐based conservation status despite high uncertainty
Conservation Biology, Volume 37, Issue 4, August 2023., 2023 Abstract Estimates of temporal trends in species’ occupancy are essential for conservation policy and planning, but limitations to the data and models often result in very high trend uncertainty. A critical source of uncertainty that degrades scientific credibility is that caused by disagreement among studies or models.
Richard S. A. White +2 more
wiley +1 more source
Integrative Conservation, Volume 2, Issue 1, Page 1-9, March 2023., 2023 Understanding the structure of the Post‐2020 Global Biodiversity Framework. Abstract December 2022 finally saw the historic agreement of the Kunming‐Montreal Global Biodiversity Framework (KM‐GBF), a landmark framework that sets to halt and reverse global biodiversity loss by remedying the multifaceted drivers behind biodiversity declines around the ...
Alice C. Hughes
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Climate suitability as a predictor of conservation translocation failure
Conservation Biology, Volume 34, Issue 6, Page 1473-1481, December 2020., 2020 Abstract The continuing decline and loss of biodiversity has caused an increase in the use of interventionist conservation tools, such as translocation. However, many translocation attempts fail to establish viable populations, with poor release site selection often flagged as an inhibitor of success.
Joe Bellis +4 more
wiley +1 more source
Dianci bileiqi, 2023 为研究雷击电力杆塔时杆塔接地网降低接地电阻的效果，建立近水源平原和山区的单桩塔接地网和四桩塔接地网模型，计算不同土壤电阻率、电流频率下接地网形式对近水源区杆塔接地电阻的影响，并对比分析平原和山区地势条件下杆塔接地网形式的最优方案。仿真结果表明：接地网的接地电阻随着土壤电阻率和电流频率增大而升高。对于近水源的平原地区，单桩塔“米”字型接地网在单桩塔中降阻效果最显著，以单边外延接地网为比较基准，在工频和高频条件下的平均降阻效率分别为64.49%和76.15 ...
董贯雷 +5 more
doaj
Jianzhu Gangjiegou Jinzhan, 2023 使用黏滞阻尼器的减震效果是建设单位和设计单位较为关注的问题，以钢管混凝土框架-中心支撑结构为例，通过理论分析对黏滞阻尼器的减震适用性和减震效率进行了研究，通过若干实例的小震、大震计算分析进行了多因素减震效果研究。结果表明，使用黏滞阻尼器与是否能够降低调整后的地震作用与设防烈度无关，与场地特征周期及结构基本周期有关。随着附加阻尼比的增加，结构的减震率逐渐增加，但减震效率在逐渐降低。相同附加阻尼比下，设防烈度高时减震效果较优，结构高度较高时，减震效果较差。
邵冰 +6 more
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Dianci bileiqi, 2020 特高压线路因接地网接地电阻过高,受雷击影响跳闸问题频繁出现,因此需要进行降阻。采用数值模拟的方法,应用有限元软件COMSOL,利用石墨复合接地材料,建立特高压杆塔基础仿真计算模型,分别对单根灌注桩分层式、螺旋式降阻方案、单个基坑四角分层式、笼式、方框形降阻方案、整个基础四角分层、方框形降阻方案进行计算,分析了圈数、匝数、半径对分层式、螺旋式降阻效果的影响,对比了几种降阻方案对地面电位分布和电流密度的影响。计算结果表明:随圈/匝数、半径增加,降阻效果越来越明显,但差别越来越小。单根灌注桩时 ...
晏伟宸 +5 more
doaj
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT In conventional piezoceramics, the coordinated change between the dielectric constant (εr) and the piezoelectric charge constant (d33) usually limits the piezoelectric voltage constant g33 (g33 = d33/εr), a critical figure of merit for piezoelectric sensors.
Xiaoying Feng +7 more
wiley +1 more source
Dianci bileiqi, 2022 笔者研究了引外接地在垂直双层土壤中有效长度，以验证GB 50065中所说变电站2 km范围内有低土壤电阻率地区时可采用引外接地的可行性。研究采用CDEGS软件进行仿真，结果表明辅助接地网的降阻效率随引外长度增加而减小，有效降阻的最大引外长度(η≥10%)在400～800 m之间。辅助接地网的降阻效率还受到两侧土壤电阻率比值k、接地导体材质、接地网边长以及接地导体半径等因素的影响。因此当辅助接地网距变电站主接地网2 km时已无实际效果。
周恬雅, 鲁志伟, 林忠宣, 董威
doaj
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT Aqueous vanadium dioxide (VO2)‐based smart thermal insulation coatings represent a viable strategy to decrease building energy consumption and advance sustainable development goals. However, the inherent instability and limited compatibility with polymer matrices of VO2 hinder its widespread application.
Xiuxian Zhao +9 more
wiley +1 more source