Results 81 to 90 of about 762,283 (161)
Rare Metals, Volume 45, Issue 9, September 2026.ABSTRACT Photocatalysis has emerged as a promising approach for solar energy conversion and environmental remediation. However, its practical implementation is still hindered by limited charge‐separation efficiency, slow surface reaction kinetics, and insufficient catalyst stability.
Mengting Zhang +5 more
wiley +1 more source
, 1997 使用疲劳分析与断裂力学结合的方法，对海上固定式导管架平台结构的疲劳裂纹，从形成到扩展至其损伤容限或贯穿管壁厚的整个过程，进行了分析评估。在486微机上构造了一个计算机分析程序系统(ASFPOS)，对某一固定式导管架平台进行了分析评估 ...
王维明, 丁克勤, 柳春图
core +2 more sources
Hybrid Flexible–Soft Neural Interface as a Practical Solution for Long‐Term Implants
Rare Metals, Volume 45, Issue 9, September 2026.ABSTRACT Implantable neural interfaces face persistent challenges in long‐term functionality due to chronic immune responses, mechanical mismatch with tissue, and material corrosion in vivo. The commonly used flexible materials, such as polyimide and parylene‐C (poly[monochloro‐p‐xylylene]), have advantages in low water vapor permeability and high ...
Bowen Ji +13 more
wiley +1 more source
, 2019 ［目的 / 意义］ 梳理并评述国内外有关科学家评价的方法， 归纳好的做法和经验， 为相关研究机构制定科学家评价方法提供参考。［方法 / 过程］ 从定性、定量和新型评价范式等角度进行梳理， 其中定量研究方法主要包括: 基于论文数和引文数、标准化指标、h 指数及其衍生指数等单指标定量评价方法，基于链接的方法， 替代计量学以及多指标综合评价方法等。定性方法主要从同行评议角度展开， 新型评价范式 主 要 介 绍 了 大 数 据 时 代 基 于 人 工 智 能 和机器学习的科学家评价新范式。［结果 / 结论 ...
刘强, 陈云伟
core
Risk, Hazards &Crisis in Public Policy, Volume 17, Issue 3, September 2026.ABSTRACT Disasters and crises disrupt lives and test the capacities of governments and organizations. While their immediate aftermath is often marked by uncertainty and disruption, recurrent patterns in how individuals are affected give rise to foreseeable hardships.
Michel L. A. Dückers
wiley +1 more source
Gongye shui chuli, 2004 通过阻垢作用机理的回顾,对目前常用阻垢剂评定方法的特点与局限性进行了讨论,认为静态阻垢法、鼓泡法、极限碳酸盐硬度法、pH位移法和电导法评价的只是阻垢剂的螯合能力和部分分散能力,无法考虑其余分散能力和晶格畸变能力的贡献,因此都只适用于中低硬度系统中阻垢剂性能的评定。最后对能够评定阻垢剂分散能力和晶格畸变能力的方法进行了初步介绍。
王风云, 雷武, 夏明珠
doaj +2 more sources
大容量试验短时交流电流测量系统有效值的量值溯源和不确定度评定
Gaoya dianqi, 2014 全国高电压试验技术和绝缘配合标准化技术委员会修改采用IEC 62475:2010,完成了国家标准GB/T16927.4《高电压和大电流试验技术第4部分:试验电流和测量系统的定义和要求》的制定,用于指导各种类型电流测量系统的量值溯源和不确定度评定工作。文中依据该标准并参考了STL技术报告《大容量实验室大电流测量系统以STL标准分流器为基准的溯源》,对大容量试验用短时交流电流测量系统进行了有效值的量值溯源和不确定度评定并给出了评定计算示例。
王安 +9 more
doaj
World Medical &Health Policy, Volume 18, Issue 3, September 2026.ABSTRACT Confrontational violence still puts catastrophic burdens on children, with 2024 being the highest recorded levels of displacement, malnutrition, injury, and deprivation in contemporary humanitarian history. Children's surgical care is still grossly underrepresented in health responses worldwide in the prevention of avoidable deaths and long ...
Gaurav Chanderprakash Mittal +4 more
wiley +1 more source
Gaoya dianqi, 2012 电力变压器各部件故障模式之间具有高度的复杂性和关联性,且设备价值昂贵,实施可靠性试验困难,所以难以利用传统重要度定义的方法进行重要度分析。鉴于上述问题,笔者提出了基于梯形模糊数的重要度评定方法。通过分析影响故障模式重要度的因素,建立了重要度评价指标体系,并借助德尔菲法制定了指标的评价等级及相应评分准则,引入了协调程度的概念对专家评分进行修正,并利用梯形模糊数确定指标权重,最终通过线性加权将指标与指标权重结合,得到了各故障模式的重要度。计算实例表明,该方法简便、有效,可用于电力变压器的可靠性评估及维修决策。
刘军, 周婧婧, 谢世恒, 宋伟
doaj
World Medical &Health Policy, Volume 18, Issue 3, September 2026.ABSTRACT The integration of artificial intelligence (AI) in healthcare is rapidly evolving, offering immense potential to transform service delivery, diagnostics, and health systems governance. However, Sub‐Saharan Africa faces significant readiness challenges due to limited infrastructure, capacity gaps, and fragmented digital strategies.
Said Baadel +3 more
wiley +1 more source