Results 81 to 90 of about 138,296 (217)
, 2008 近年来,生态风险评估已被人们所重视,但到目前为止,生态风险评估还没有一套完整的方法体系。以我国最大的内陆河——塔里木河下游为研究区,将遥感、地理信息系统等技术手段与模糊数学方法相结合,根据ERA框架和层次分析思想建立塔里木河下游植被的生态风险评估指标,运用模糊综合评判的方法进行塔里木河下游植被生态风险的遥感定量评估,并在评估结果的基础上进行可视化分析。结果表明:在流域生态风险评估缺乏有效的定量评估方法的情况下,Fuzzy集合论与AHP方法结合的模糊综合评判方法是可行的,具有较高的科学性;运用遥感 ...
蒋良群, 舒成强, 包安明, 陈曦
core
, 2009 一、引言在许多的房地产交易和税基评估中通常都需要对资产进行评估,这种评估对于贷款业在确定按揭货款抵押品的价值时是非常重要的。评估师的任务就是要进行不带有任何偏见的、公正的、对房地产的自然属性 ...
David V.Seyer, 李容, 纪益成
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Conservation Biology, EarlyView.Abstract Qualitative approaches are increasingly applied in conservation social science, yet methodological reflection remains limited. Member checking, a process of returning findings to participants for feedback, is widely recognized outside conservation as a means to enhance rigor and reciprocity, but it is rarely reported in conservation research ...
Judith J. Rakowski +6 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
, 2001 任何实践都需要理论的指导。因此，对监管员进行有效的绩效评估，只有在研究一些理论的成果和借鉴若干成功的范例基础上，才可能设计出适合央行监管特点的绩效评估方法，这是本文作者写作的基本思路。鉴于此，本文首先引入与监管员绩效评估相关的理论，在此基础上，作者根据央行监管员的工作特点设计出绩效评估体系，并试图对央行监管员的绩效评估从形式到内容提出一些改革建议。 本文共分为四章，第一章主要说明监管员绩效评估对加强金融监管的重要作用，监管员队伍的现状和绩效评估中存在的一些问题 ...
陈云强
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Intact coastal nursery rearing amid climate‐driven phenological shifts in threatened salmon
Conservation Biology, EarlyView.Abstract Literature linking phenology to climate has proliferated in recent decades and shows that climate change has reorganized seasonal opportunities worldwide. However, this literature often quantifies changes in point measures of timing (e.g., beginnings and peaks) without context about duration (e.g., rearing season length) or performance (e.g ...
Stuart H. Munsch +8 more
wiley +1 more source
, 2017 目的：视野缺损是一种常见的眼科疾病，眼部炎症、外伤以及视觉通路病变等均会造成不同类型的视野缺损。目前临床上对视野受损的视觉能力评估主要依赖于视野计，但有不少研究表明视野计可能大大低估了患者的视觉能力。然而，临床上并无用于对已缺损视野功能进行客观而有效地评估和干预的技术和方法。本研究利用视觉心理物理学研究中已被研究得相对比较清晰的记忆视觉掩蔽技术(memory masking）去定量评估受损视野的残留功能水平。同时，对于受损视野仍有残留功能的病人，采用知觉学习方法来尝试对其缺损的视野进行恢复。 方法：
何勍, 邱怀雨, 赵金, 黄昌兵
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Subspecies taxonomy reflects social and geographic patterns of taxonomic effort in tetrapods
Conservation Biology, EarlyView.Abstract Subspecies have been used in conservation biology to account for intraspecific patterns in genetic diversity, which is crucial to long‐term population viability. Although over 3200 subspecies are currently assessed by the International Union for Conservation of Nature Red List, their biological relevance remains controversial.
Jhonny J. M. Guedes +3 more
wiley +1 more source
Gaoya dianqi, 2016 电力变压器作为电力系统的枢纽设备,其运行状态直接影响电力系统的可靠性。因此,评估电力变压器的运行状态继而采取科学合理的维修策略具有重要意义。针对多台电力变压器状态评估排序问题,提出了一种新的评估方法。首先分析确立了电力变压器状态评估指标,然后根据区间层次分析法（interval-based AHP,IAHP）确定了电力变压器状态评估指标的指标权重。结合区间数和TOPSIS法,建立了基于区间数TOPSIS法的电力变压器状态评估模型,最后根据相关数据对8台变压器的状态进行了评估。计算结果表明 ...
卜宪存, 张海英
doaj
Using the capabilities approach to achieve people‐centered conservation
Conservation Biology, EarlyView.Abstract Top‐down interventions carried out by state and nonstate institutions to conserve biodiversity and improve the lives of forest‐proximate people (FPP) in the Global South tend to reflect economistic understandings of human well‐being. More progressive and people‐centered conservation projects are guided by normative visions of how the world ...
Arthur Rodrigues +4 more
wiley +1 more source