Results 61 to 70 of about 24,356 (164)
Protected areas on international borders show uneven conservation outcomes
Conservation Biology, EarlyView.Abstract Border protected areas (BPAs) are national protected areas that are immediately adjacent to a country's border or span two or more countries; they are characterized by distinctive opportunities and pressures. They play a critical role in protecting carbon‐rich ecosystems, conserving endangered biodiversity, reducing cross‐border environmental ...
Rachakonda Sreekar +10 more
wiley +1 more source
Gaoya dianqi, 2017 目前对电网主设备风险评估方法的研究处在发展阶段,且存在不同类型评估对象的评估特征没有通用性、传统评估方法存在人为因素影响和不区分各指标重要程度等问题,笔者在南方电网公司变压器、断路器等电网主设备状态评估导则建立的故障树的基础上,结合设备现场运行数据和故障分布,提出基于隶属函数、相对劣化度、加权平均的故障概率评定方法并引入模糊层次分析法确定各底事件、中间事件的相对权重,实现对设备各部件的风险评估。最后通过某500 kV变电站3号主变的风险评估指标进行评判分析,对文中所建立的评估模型进行验证,并根据实际运行、
田雨, 张晗
doaj
A framework for integrating resilience indicators into risk assessments
Conservation Biology, EarlyView.Abstract Globally, ecosystems are increasingly threatened by climate change and human pressures, yet ecosystem risk assessments predominantly emphasize exposure to stressors while overlooking intrinsic ecosystem resilience—the capacity to absorb and recover from disturbances.
Benoît Pichon +4 more
wiley +1 more source
Integrating biodiversity protection into emergency management
Conservation Biology, EarlyView.Abstract Megafires have emerged as a considerable threat to biodiversity conservation worldwide. The biodiversity‐focused response and recovery actions that occurred during Australia's 2019/2020 Black Summer bushfires demonstrate that it is possible to protect biodiversity alongside human life and property during disasters.
Jacey Roche Cerda +2 more
wiley +1 more source
Gaoya dianqi, 2012 笔者基于目前混乱的电能质量评估现状,通过模拟实测数据分析了电能质量测试数据的不同评估方法及其对应评估结果的差异,给出了各种评估方法的应用领域及其使用条件,通过分析比较提出了x%概率大值与最大值相结合的电能质量评估方法。
赵亮, 梁东, 张建军
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
Reevaluating the suitability of amphibians and reptiles for translocation
Conservation Biology, EarlyView.Abstract The scale of amphibian and reptile translocations over the past 16 years necessitates a reassessment of current practices since the last major review in 2009. We conducted a literature review of translocations from 2007 to 2023 and identified 313 case studies encompassing conservation‐, mitigation‐, and research‐related translocations.
M. Winand +5 more
wiley +1 more source
Gaoya dianqi, 2022 针对变压器本体绝缘状态评估中的状态信息指标的不确定性，文中提出了基于模糊评判理论与DSmT的变压器本体多级绝缘状态评估模型，该模型分为本体绝缘状态等级评估与绝缘缺陷风险等级评估。应用模糊评判理论构建等级评估的隶属度函数模型，选择反映变压器绝缘状态的绝缘类指标参量作为模型的输入，应用熵权法改进的DSmT对指标隶属度进行融合得到最终的等级评估结果，该模型有效克服了等级区间界限值过于绝对化的局限性，解决了传统DST高冲突性证据的融合问题。通过实例验证，该模型的评估结果具有一定的有效性 ...
夏彦卫 +5 more
doaj
A new place for stories in conservation
Conservation Biology, EarlyView.Abstract Michael Soule writes in his foundational article “What is Conservation Biology?” that “in crisis disciplines, one must act before knowing all the facts; crisis disciplines are thus a mixture of science and art, and their pursuit requires intuition as well as information.” Since this article was published three decades ago, conservation biology
Alex McInturff
wiley +1 more source
Assessing safeguards against the illegal wildlife trade on AI platforms
Conservation Biology, EarlyView.Abstract AI platforms, while offering many positive applications, also present new risks to society, including the facilitation of trade in threatened and illegal wildlife. Although these platforms employ safeguards to block harmful or criminal requests, studies show such protections are imperfect and can be easily bypassed.
David L. Roberts, Jason R. C. Nurse
wiley +1 more source