Results 21 to 30 of about 10,650 (169)
Conservation Biology, EarlyView.Abstract Despite the crucial role of human impacts on biodiversity loss, many assessments of this loss focus on single metrics, such as species richness, and overlook the multidimensional effects of human activities. Because of its importance to ecosystem functioning, we investigated the functional diversity of medium‐ and large‐sized mammal ...
Xueyou Li +8 more
wiley +1 more source
, 2019 智能电能表运行状态评估包括可靠性分析、电能表故障分析以及电能表可靠性寿命预计；针对目前智能电能表运行状态评价研究所必须面对的问题，对当前应用于智能电表状态评估的质量评价方法、异常分析和故障预测算法、寿命预测算法等内容进行了梳理和对比，盘点智能电表运行状态评价技术的研究现状和最新研发进展；最后从智能电表数据特点的角度阐释了目前应用算法的特点和不足，并探讨了研究基于多源数据融合技术的智能电表运行状态评估技术的必要性、可行性和努力方向，为智能电表数据数据分析技术和状态评估技术提供可靠的借鉴意义 ...
吉莹, 商曦文, 张建寰
core
Modeling of Efficiency Distribution Characteristics of Photovoltaic Arrays and Its Application in Operating State Evaluation [PDF]
ObjectivesAs the installed capacity of photovoltaic (PV) power generation continues to expand, accurately evaluating the operating state of PV arrays has become increasingly important in the intelligent operation of PV power stations.
LI Guanghui +8 more
core +1 more source
Geographic risks to functional groups of mammals and birds from habitat loss in Mexico
Conservation Biology, EarlyView.Abstract There is a need to quantify the impact of habitat loss due to anthropogenic factors on different aspects of biodiversity, such as functional trait diversity represented by functional groups (FGs). We developed a metric to assess the weighted risk of loss of habitat for 33 FGs of mammals and 36 FGs of birds in Mexico based on potential ...
Fernando Mayani‐Parás +4 more
wiley +1 more source
Gaoya dianqi, 2018 针对当前电力变压器套管绝缘状态评估中各评价参量存在复杂性和不确定性的问题,文中应用集对分析方法对变压器套管进行绝缘状态评估。首先选取用于套管状态评估的指标,对评估结果进行等级划分并制定响应策略,采用层次分析法和熵权法融合的综合赋权法来确定各评估指标的权重,构造联系度数学表达式来描述评估指标与状态等级之间的关联程度,建立起集对分析状态评估模型。实例计算分析表明,基于集对分析方法和综合赋权的状态评估模型能够有效反映变压器套管的绝缘状态,评估结果可为变压器的状态检修提供有效参考。
李志超 +4 more
doaj
Research on Predictive Maintenance Mode of Air Preheater Based on Digital Twin [PDF]
ObjectivesIn order to solve the shortcomings of the traditional preventive maintenance method of air preheater in large thermal power unit, a general mode of predictive maintenance based on digital twin was proposed, and the digital twin system of air ...
CHEN Lian +12 more
core +1 more source
ABCA12 Frameshift Deletion in Domestic Cats With Ichthyosis Fetalis
Veterinary Dermatology, EarlyView.ABSTRACT Background Ichthyosis fetalis (IF), also known as harlequin ichthyosis, is a rare and often fatal autosomal recessive congenital skin disorder. It is characterized by thickened, hard skin plaques and deep skin fissures that limit mobility and cause malformations of the eyes, lips and ears.
Jeanna M. Blake +2 more
wiley +1 more source
Gaoya dianqi, 2017 为了进一步提高架空输电线路状态评估结果的准确性,文中首先研究了输电线路各监测参量在反应设备状态中的灵敏度,构建了基于主成分分析法的输电线路状态评估指标体系,明确了状态评估的数据需求;然后建立了输电线路状态评估的贝叶斯数学模型,并进行了实例验证;最后基于多源数据平台,设计开发了输电线路状态评估专家系统,将研究成果予以实现。结果表明,文中提出的输电线路状态评估指标体系更具有针对性,状态评估方法有效可行。
常安 +4 more
doaj
Cost Benefit Analysis for Maintenance Strategy of Gas Turbine Inlet Filtration System [PDF]
, 2022 Maintaining the normal operation of inlet filtration system is of great significance to ensure the operation efficiency of gas turbine unit. The maintenance economic benefit analysis model of gas turbine inlet filtration system was established, and the ...
DENG Gaofeng +6 more
core +1 more source
World Medical &Health Policy, Volume 18, Issue 1, March 2026.ABSTRACT Against the backdrop of calling for nonfemale‐oriented promotion of vaccination against human papillomavirus (HPV), this study explored three potential names—“HPV Vaccine,” “Cervical Cancer Vaccine,” and “Genital Warts Vaccine”—to promote vaccination against HPV infection among heterosexual men.
Timothy K. F. Fung +2 more
wiley +1 more source