Results 11 to 20 of about 1,203,007 (155)

Integrating earthquake early warnings into business continuity and organisational resilience: lessons learned from Mexico City

open access: yesDisasters, Volume 47, Issue 2, Page 320-345, April 2023., 2023
Earthquake early warning (EEW) is becoming a popular tool for mitigating earthquake‐induced losses. However, the current literature separates EEW technical components and their operational and behavioural implications. This paper investigates how EEW can be integrated into business continuity practices, organisational resilience, and disaster risk ...
Gianluca Pescaroli   +3 more
wiley   +1 more source

International clinical practice recommendations on the definition, diagnosis, assessment, intervention, and psychosocial aspects of developmental coordination disorder – Chinese (Mandarin) translation

open access: yesDevelopmental Medicine &Child Neurology, Volume 61, Issue 3, Page E1-E35, March 2019., 2019
目的 本国际临床指南由欧洲残疾儿童学会(the European Academy of Childhood Disability,EACD)牵头制定,旨在解决发育性协调障碍(developmental coordination disorder,DCD)的定义、诊断、评估、干预以及与社会心理方面的临床应用关键问题。 方法 本指南针对五个领域的关键问题,通过文献综述和专家团队的正式讨论达成共识。为保证指南的循证基础,以“机制”、“评估”和“干预”为检索词, 对2012年更新以来提出的最新建议以及新增的“社会心理问题”和“青少年/成人”为检索词进行检索。根据牛津大学循证医学中心证据等级 (证据水平 [level of evidence, LOE]1–4) 将结果进行分类,最终转化为指南建议。并由国际 ...
Jing Hua   +6 more
wiley   +1 more source

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

Patriotic rabbits or toxic men? Media ideology, entextualization, and enregisterment on Chinese interfaces

open access: yesJournal of Linguistic Anthropology, Volume 35, Issue 2, August 2025.
Abstract This article argues that social actors' media ideologies about digital interfaces are key to the enregisterment of online activities. Focusing on an online register emergent from user activities around Year, Hare, Affair (YHA)—a state‐aligned Chinese animation—I explore how different metadiscourses evaluate this register by entextualizing ...
Jiarui Sun
wiley   +1 more source

A higher tissue fraction of parenchyma in secondary xylem supports growth recovery of angiosperm trees after drought

open access: yesFunctional Ecology, Volume 38, Issue 12, Page 2709-2719, December 2024.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Resilience to drought represents an important focus for trees during climate change, with the aim of predicting the resistance and recovery of species worldwide. Previous studies mainly linked tree growth resilience to plant functional traits that are related to ...
Xijin Zhang   +7 more
wiley   +1 more source

关于ErH2弹性性质及热力学性质的第一性原理研究

open access: yes四川大学学报. 自然科学版, 2011
利用第一性原理平面波赝势密度泛函理论并结合准谐德拜模型计算了立方萤石结构ErH2在不同温度和压强下的弹性性质及热力学性质,在高温条件下,计算出的等体热容Cv趋近于Dulong-Petit极限.得到了绝对零度,零压强下立方萤石结构ErH2的晶格常数为0.5232 nm,与实验值0.5230 nm非常接近;同时,还由不同的原胞体积计算出了该体系的E-V数据;从计算出的高压下的弹性常数,根据立方晶系的力学稳定性条件,推断出立方萤石结构ErH2的相变压力约为20 GPa,为高压条件下 ...
刘一丁, 唐永建
doaj  

高压断路器弹簧操动机构合闸弹簧可靠性分析

open access: yesGaoya dianqi, 2007
针对高压断路器弹簧操动机构合闸弹簧失效问题,运用可靠性设计理论对其进行分析研究,找出了弹簧因疲劳可靠度不足而失效的原因,并提出了解决问题的措施。常规设计是将弹簧外载荷、几何尺寸、材料强度性能等参数是看作确定量,实际上由于受材质、制造、测量等条件的影响,这些参数是不确定的,所以往往导致零件因不可靠而失效。可靠性设计将这些参数视为随机变量,运用概率统计的方法分析弹簧的强度,定量回答了弹簧的失效概率问题,使人对弹簧的质量有了更加准确的把握。提高弹簧的疲劳可靠度可从改进弹簧尺寸参数、材料、制造工艺 ...
舒服华
doaj  

分析不同检测手段对复发性流产的诊断价值

open access: yesZhongguo shiyan zhenduanxue, 2022
目的 分析不同检测手段对复发性流产的诊断价值。方法 选择2020年6月至2021年6月在石家庄市妇幼保健院接受治疗的非孕状态下215例复发性自然流产患者为观察组,根据流产次数分为流产3次组92例,流产4次组76例,流产次数≥5次组47例,同时选取160例正常体检的健康未孕育龄期妇女为对照组。分析观察组和对照组血栓弹力图(TEG)参数和血小板相关参数,同时比较观察组不同流产次数组血栓弹力图参数和血小板相关参数。采用ROC曲线分析存在统计学差异的指标对复发性流产的诊断价值。结果 观察组血栓弹力图参数MA值 ...
doaj  

Method of fundamental solutions for a three-dimensional inverse problem in linear elasticity(基本解方法求解一个三维线弹性力学反问题)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2006
将用于求解椭圆型偏微分方程边值问题的基本解方法应用于求解一个三维线弹性反问题,即Navier方程组的Cauchy问题.基本解方法离散方程所得的线性方程组是高度病态的,常见的求解方法如最小二乘法等无法得到合理的解.文中应用Tikhonov正则化和截断奇异值分解这两种正则化方法求解线性方程组,所需正则化参数则根据L-曲线确定,克服了问题的病态性.数值算例表明,本文方法能有效地求解三维线弹性力学反问题,而且这两种正则化方法所得到的结果精度相当.
WANGJun(王钧)   +2 more
doaj   +1 more source

理想塑性固体中逐步扩展裂纹的弹塑性场 [PDF]

open access: yes, 1986
本文从三维的塑性流动理论出发,导出了关于理想塑性固体平面应变问题的基本方程。利用这些方程,分析了不可压缩理想塑性固体的逐步扩展裂纹顶端的弹塑性场。得到了关于应力和速度的一阶渐近场。分析了弹性卸载区的演变过程和中心扇形区的发展过程。预示了出现二次塑性区的可能性 ...
王自强
core  

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