Results 21 to 30 of about 5,214 (167)

Evolution of research on global amphibian declines

open access: yesConservation Biology, Volume 40, Issue 1, February 2026.
Abstract In the late 1980s, the scientific community became aware of severe, enigmatic amphibian population declines. These declines triggered a wave of research focused on quantifying their extent and identifying key drivers. We used text‐analysis techniques, including topic modeling and geoparsing, to examine the evolution of research focused on ...
Jordann Crawford‐Ash   +6 more
wiley   +1 more source

基于新国标的教学楼及电子设备雷击风险评估

open access: yesDianci bileiqi, 2010
我国从2008年11月起实施GB/T 21714.2-2008建筑物防雷设计规范,它适用于建筑物和服务设施的雷击风险评估。基于新国标对某教学楼进行雷击风险评估,为新国标的应用和普及提供参考。首先对教学楼进行数据采集和分区,按照评估流程和方法对其进行雷击风险评估。将所得雷击风险值与风险容许值进行比较,得出评估结果。最后对教学楼及其内部的电子设备提出防雷建议。教学楼直接雷击的风险值和间接雷击的风险值都小于风险容许值,现有的防护措施基本能满足教学楼的防雷需要。
崔雪
doaj  

基于风险的电-热综合能源系统风电消纳能力评估 [PDF]

open access: yes全球能源互联网, 2019
伴随风电大规模接入电网,其不确定性为电网的决策调度带来了新的挑战,风电消纳评估由此成为研究热点之一。以不确定集合表征风电不确定性,建立了两阶段鲁棒优化模型,以解决电-热综合能源系统的风电消纳能力评估问题。主问题基于风险指标优化风电可消纳域,并在算法处理中引入分段线性化处理非线性的风险表达式;子问题引入风电可接纳判据寻求风电不确定集合中的极端场景。最后着重比较电-热综合能源系统与电力系统的风电消纳能力差异。
巩志皓, 王程
doaj   +1 more source

The Internal Control Research of the Purchasing in Y Tobacco Industry Company [PDF]

open access: yes, 2016
长期垄断的管理方式,使得烟草企业过度依赖专卖保护,整体风险意识淡薄,内部控制薄弱,在风险评估、预测机制方面处于缺失状态。烟草企业缺乏内部控制、风险评估机构和相应的人员配备,整个行业在风险应对方面经验不足。随着烟草行业内部改革的逐步深入,行业经营秩序日趋规范,对企业加强内部控制提出迫切要求。物资采购是企业内部控制的重要组成部分,完善采购内部控制有利于企业防范采购风险,提高采购效率,降低采购成本,促进企业持续健康发展。 本文共包含六章:第一章是引言部分,第二章对内部控制及采购内部控制的相关概念进行阐述 ...
陈欣
core  

Undetected cases after implementation of first‐trimester anomaly scan in low‐risk population: insights from the IMITAS study

open access: yesUltrasound in Obstetrics &Gynecology, Volume 67, Issue 1, Page 27-33, January 2026.
ABSTRACT Objective To assess the effectiveness of the first‐trimester anomaly scan (FTAS) performed as part of a centrally steered national screening program in The Netherlands by investigating false‐negative cases with a fetal structural anomaly that was not detected at the FTAS.
K. Bronsgeest   +18 more
wiley   +1 more source

Effect of nursing risk management on safety goals of cancer patients during the transition period after discharge from ICU (护理风险管理对ICU转出肿瘤患者过渡期安全目标的影响)

open access: yes中西医结合护理, 2021
Objective To investigate the effect of nursing risk management on safety goals of cancer patients during the transition period after discharge from ICU. Methods A risk management team for cancer patients after discharge from ICU was set up.
GAO Fei (高菲)   +1 more
doaj   +1 more source

Study on Risk Management of New Product Development Project in Introducing New Components from C Company [PDF]

open access: yes, 2015
移动智能终端产品,如智能手机、平板电脑等,作为移动互联网的重要接入口,自2007年后呈爆炸式增长,也因此吸引了越来越多其他领域企业的参与者,产业竞争异常激烈。这就要求企业在产品上要不断创新,持续推出性价比高的产品出来,在移动智能终端领域,创新很大程度上依赖于关键部件的技术革新。但新技术由于其成熟度不佳,如果在应用前期没有对风险进行管理,很容易出现批量质量事故,影响到企业的声誉。 本文首先对项目风险管理和FMEA的理论及应用进展进行研究,指出了其在移动智能终端领域具备研究及应用价值。其次 ...
黄印侨
core  

Robust metrics for quantifying and comparing resistance and recovery in experimental studies

open access: yesMethods in Ecology and Evolution, Volume 17, Issue 1, Page 6-14, January 2026.
Abstract Various indices have been developed to experimentally quantify resistance and recovery (two components of engineering resilience) in response to anthropogenic and natural disturbances. This diversity complicates the selection of appropriate metrics for comparing resilience across ecosystems and studies.
Zewei Zhuang   +2 more
wiley   +1 more source

Research advances in food microbial risk assessment tools(食品微生物风险评估工具研究进展)

open access: yes浙江大学学报. 农业与生命科学版
To improve the efficiency of food microbial risk assessment and promote the application of modern tools in food risk assessment to build a safe system, this review particularly introduces the current commonly used food microbial risk assessment tools ...
CAI Dixuan(蔡笛萱)   +11 more
doaj   +1 more source

Research on Investment Internal Control of NF Group [PDF]

open access: yes, 2016
企业的投资活动作为企业价值增加的重要途径,同时也是高风险活动。一方面企业价值的增加从根本上取决投资的效率效果。只有能给企业带来收益或资金增值的投资项目才能进一步提升企业的规模经济,实现企业的发展壮大。而另一方面由于企业投资活动资金规模大,回收时间长,而且投资结果通常是不可逆的,投资一旦失败给企业造成的不利影响是沉重深远。当前国企的“高投资低效率”的投资行为饱受诟病,由于企业内部的约束制衡机制的失效,一方面部分国企高管利用投资进行“帝国建造”扩张控制权的同时产生了利益输送等腐败行为。另一方面 ...
黄文彦
core  

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