Results 1 to 10 of about 2,053 (153)

Disentangling the Symptom‐Level Nuances in Comorbid Posttraumatic Stress Disorder and Problematic Alcohol Use in Northern Irish Military Veterans: A Network Analysis

open access: yesJournal of Traumatic Stress, Volume 35, Issue 1, Page 32-41, February 2022., 2022
Abstract Posttraumatic stress disorder (PTSD) and alcohol use are highly prevalent among military veteran populations. Several theories have been proposed to account for the comorbidity between PTSD and problematic alcohol use, but research examining the symptom‐level associations between the two is limited.
Emily McGlinchey   +4 more
wiley   +1 more source

Bridging research and practice in conservation

open access: yesConservation Biology, Volume 35, Issue 6, Page 1725-1737, December 2021., 2021
Abstract Calls for biodiversity conservation practice to be more evidence based are growing, and we agree evidence use in conservation practice needs improvement. However, evidence‐based conservation will not be realized without improved access to evidence.
Andrew N. Kadykalo   +7 more
wiley   +1 more source

Disturbed Sleep Connects Symptoms of Posttraumatic Stress Disorder and Somatization: A Network Analysis Approach

open access: yesJournal of Traumatic Stress, Volume 34, Issue 2, Page 375-383, April 2021., 2021
Abstract Posttraumatic stress disorder (PTSD) and physical health problems, particularly somatic symptom disorder, are highly comorbid. Studies have only examined this co‐occurrence at the disorder level rather than assessing the associations between specific symptoms.
Laurence Astill Wright   +6 more
wiley   +1 more source

涂防火涂料的蜂窝组合梁耐火性能试验研究

open access: yesJianzhu Gangjiegou Jinzhan, 2021
为研究涂有防火涂料的蜂窝组合梁在火灾下的性能,进行了涂刷厚涂型防火涂料的实腹组合梁与蜂窝组合梁的抗火试验,并与未涂防火涂料的蜂窝组合梁进行对比,研究了防火涂料对蜂窝组合梁温度分布、承载力以及破坏形态等方面影响。结果表明:防火涂料可提高蜂窝组合梁的耐火能力,可将蜂窝组合梁的耐火极限由0.5 h提高到1.5 h。防火涂料能显著减小蜂窝组合梁在火灾下的变形,改变蜂窝组合梁在高温下的温度分布规律,使温度分布较为均匀,避免蜂窝组合梁腹板过早屈曲。蜂窝孔形对涂有防火涂料的蜂窝梁的耐火性能没有影响 ...
贾连光   +4 more
doaj  

波形钢腹板PC组合简支箱梁抗火性能与设计

open access: yesJianzhu Gangjiegou Jinzhan, 2023
为研究波形钢腹板PC组合箱梁抗火性能及抗火设计方法,采用ANSYS软件建立热-力耦合分析模型,分析了受火工况下组合箱梁的挠度、侧向位移、钢束张力以及抗弯承载能力的变化规律,并以组合箱梁的挠度和腹板侧向位移为判定指标,提出了一种关于波形钢腹板组合箱梁的抗火设计方法。结果表明:荷载比是影响组合箱梁挠度发展的关键因素;受火全过程中,钢束张力的变化对组合箱梁挠度、侧向位移以及承载能力的变化影响较大;组合箱梁受火初期挠度增长缓慢,在横隔板处形成塑性铰后,跨中挠度快速增大,然后在加载处形成塑性铰 ...
沈强   +5 more
doaj  

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

Intelligent Learning for Knowledge Graph towards Geological Data

open access: yesScientific Programming, Volume 2017, Issue 1, 2017., 2017
Knowledge graph (KG) as a popular semantic network has been widely used. It provides an effective way to describe semantic entities and their relationships by extending ontology in the entity level. This article focuses on the application of KG in the traditional geological field and proposes a novel method to construct KG.
Yueqin Zhu   +5 more
wiley   +1 more source

预制装配式栓钉连接件钢-混凝土组合梁抗弯性能试验研究

open access: yesJianzhu Gangjiegou Jinzhan, 2021
为适应装配式钢-混凝土组合梁的发展需求,研究了一种将带预制圆孔的混凝土板与焊接栓钉的钢梁安装定位后在预制孔内后填充高强填料以固定栓钉连接件的预制装配式钢-混凝土组合梁。通过梁式试验获得了该装配式组合梁的极限承载力、荷载-挠度关系、界面荷载-滑移关系以及截面的应变分布规律,并与普通现浇钢-混凝土组合梁的抗弯力学性能进行对比分析。试验结果表明:所有试验组合梁均发生弯曲破坏,装配式组合梁的抗弯承载能力稍好于现浇组合梁的抗弯承载能力。采用我国现行《钢结构设计标准》(GB 50017—2017 ...
刘汗青, 钟琼, 霍静思, 陈俊
doaj  

端部约束型腹板开孔预应力波纹钢-混凝土组合梁抗火性能

open access: yesJianzhu Gangjiegou Jinzhan, 2022
为研究腹板开孔对端部约束预应力波纹钢-混凝土组合梁抗火性能的影响,采用有限元软件ABAQUS对该类组合梁在高温作用下的力学性能进行了非线性有限元分析,研究了具有端部约束预应力波纹腹板开孔组合梁的内力、跨中挠度演化过程以及破坏模式,并对其耐火性能进行了参数分析。结果表明:受约束预应力波纹腹板开孔组合梁在高温作用下的破坏模式为开孔截面腹板与端部截面波纹腹板及钢梁下翼缘发生局部屈曲;随着温度的升高,组合梁由压弯发展至拉弯的悬链线阶段;在荷载比相同、孔洞均位于剪弯区的条件下,开孔尺寸越大 ...
周焕廷   +3 more
doaj  

带有残余应力的钢梁内嵌式预应力组合梁抗火性能研究

open access: yesJianzhu Gangjiegou Jinzhan, 2023
为研究残余应力对钢梁内嵌式的预应力简支组合梁在火灾效应下的受力性能的影响,通过ABAQUS软件建立钢梁内嵌式的预应力简支钢-混组合梁几何非线性和材料非线性的有限元模型,利用热力-耦合法计算组合梁在高温下的结构响应行为。通过对梁的截面温度、整体挠度和跨中挠度、跨中截面应力分布、拉索应力和塑性变形、梁的整体曲率和跨中曲率等特性在高温下的结构响应进行考察,探究工程应用中常见初始残余应力对组合梁的影响机理。结果表明:残余应力主要是通过影响钢梁的截面模量,进而对钢梁的截面抗弯刚度产生影响 ...
刘雨晨, 郑志远
doaj  

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