Results 41 to 50 of about 12,132 (169)
How much biotic nativeness matters across human demographic groups
Conservation Biology, Volume 40, Issue 2, April 2026.Abstract Many central concepts of conservation biology—such as nativeness—are structured by ecological and social factors. However, the social consequences of using these concepts to make conservation decisions remain inadequately understood. Some researchers argue that nativeness, rather than acting as an objective proxy for important ecological ...
Harold N. Eyster, Rachelle K. Gould
wiley +1 more source
Strategy and practice of smart meter rotation based on error estimation [PDF]
In response to the deficiencies in the operation and maintenance of China’s power grid regarding the replacement of expired smart meters and batch sampling rotation, a rotation strategy for estimating the operation error of smart meters based on data ...
AI Yuan +5 more
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Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT High‐entropy alloys (HEAs) have attracted considerable interest from researchers owing to their tunable chemical compositions, exceptional structural stability, and promising catalytic properties. However, their large‐scale application is often hindered by complex manufacturing techniques and poor durability.
Sheng Guo +9 more
wiley +1 more source
Design and Implementation of Condition Monitoring System for Power Transmission Equipments [PDF]
, 2014 输电线路是电力系统的重要组成部分。随着电力建设的快速发展，电网规模的不断扩大，电网的建设和设备维护工作变得越来越频繁。作为电力输送纽带的输电线路具有距离长、分散性大、难以巡视和维护等特点，需要人员定期巡检、定期维修，占用人员数量多，整体工作强度高，受环境和人为因素影响大，维护任务繁重。为提高输电线路的管理水平，增强电力系统运行的可靠性，迫切需要建立一套性能可靠，功能丰富的电力输电设备状态监测系统，这是输电线路检修和可靠运行的发展方向。 本文设计实现的输电设备状态监测系统采用Java技术路线 ...
马智
core
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
Gaoya dianqi, 2016 为了对断路器操动机构的分、合闸弹簧（简称弹簧）储能状态进行评估,将模糊综合评判应用到高压断路器的弹簧状态评估中。选取反映断路器弹簧储能状态的典型特征参量,建立评判因素集;根据断路器弹簧的实际状态情况,建立评判等级集;采用专家估计法与层次分析法,建立评判的权重集;构建隶属函数描述评估因素与状态等级间的模糊关系,确定模糊算子及结果处理方法,进而完成整个模型用以对断路器弹簧状态进行综合评估。LW25-126型断路器上的实例验证表明,该模型可以客观有效地评估高压断路器弹簧的储能状态。
赵思洋 +5 more
doaj
Gaoya dianqi, 2020 为有效评估大电流开关柜梅花触头接触状态,避免发生严重热故障,需提高梅花触头热缺陷评估的灵敏度和准确性。因此,设计了一种长期评估梅花触头接触状态的算法用于热缺陷评估。首先,基于人工神经网络改进了传统的相对温差法,并根据正态分布统计修正了相对温差的计算结果。其次,基于改进的相对温差法设计了一种热缺陷评估算法。算法中相对温差的计算结果被划分为8个状态级别分别表征不同程度的状态。对存在异常的状态设计了"N+3"判断算法和"24 h密集评估"算法 ...
李江涛, 孙义, 李擎宇
doaj
Logistic回归和支持向量机在电缆老化状态评估中的应用与比较
Gaoya dianqi, 2023 电缆老化状态评估主要有物理模型和统计模型两大类，物理模型一般用于电缆个体老化评估，但难以用于在线评估，统计模型一般用于电缆整体老化评估，无法评估个体状态。为建立电缆运行数据与电缆老化状态之间的关联关系，在线评估电缆个体老化状态，文中提出了基于机器学习的电缆老化状态评估方法，建立了Logistic回归和支持向量机这两种机器学习模型，采用十折交叉验证对模型准确率进行了评估，同时计算了模型的F1-Score。结果表明支持向量机采用多项式核时的总体样本准确率平均值为96%，高于Logistic回归 ...
谭笑 +5 more
doaj
Conservation Biology, Volume 40, Issue 1, February 2026.Abstract Exploring heat tolerance and acclimation capacity can provide an effective approach to evaluating species’ sensitivity to extremely high temperatures due to climate warming. Despite some work on amphibian and reptile thermophysiological adaptation, related questions remain. We reviewed the literature to provide a synthesis of worldwide data on
Zijian Sun +8 more
wiley +1 more source
Cluster-based route convergence method based on network state graph model [PDF]
To address the challenges of time-varying node connectivity and frequent link failures in tactical communication networks under conditions of strong adversarial and high-mobility operations, which result in frequent route convergence and short effective ...
LU Huangjie +3 more
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