Results 11 to 20 of about 16,478 (205)
工程建设, 2023 经济发展促使国家提出了新的发展目标和发展方向，其中建筑行业也迎来了最好的发展时期，建筑行业为人们的现代化社会建设提供了基础性的保障，从根本上提升了人们日常的生活与生产水平。近几年，人们格外关注建筑行业的发展，对建筑行业所建造的建筑物以及桥梁道路等工程都有了新的要求。因此，建筑行业在不断进行自我探索，同时在研究的过程中采用了许多新型技术，其中预应力的应用技术受到了建筑行业人员的广泛关注，这项技术能够保障建筑物的整体稳定性和安全性。为了推广预应力施工技术，保障这项技术在道路桥梁建设与施工中得到更加高效 ...
红奎 康
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智能城市应用, 2023 本篇文章主要探讨了预应力技术在桥梁施工中的应用及存在的问题，并提出了针对问题的解决措施。针对预应力技术在桥梁施工中的应用价值，本篇文章从安全性、可靠性、经济性等方面进行了分析，说明了其在桥梁建设中的重要性。同时，本篇文章讨论了预应力技术在施工过程中可能出现的问题，如波纹管堵塞、后张预应力结构张拉力控制问题、预应力筋束滑丝断丝等。最后，提出了加强质量管理、优化施工工艺、提高施工人员素质等措施，以提高预应力技术在桥梁施工中的应用效果和质量，确保工程的安全和可靠性。
海军 王
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The role of child language ability and parental mentalization in early child dysregulation
Infant Mental Health Journal: Infancy and Early Childhood, EarlyView.Abstract Dysregulation in early childhood is associated with increased vulnerability to psychopathology and poor psychosocial outcomes. While there is evidence that both child language ability and parental mentalization are associated with dysregulation in early childhood, there is little understanding of the relationships between these variables, and ...
Sara Cibralic +6 more
wiley +1 more source
智能城市应用, 2023 随着国家交通建设的快速发展，桥梁作为交通链接的重要枢纽，其工程数量越来越多，质量要求也越发严格。在桥梁预应力混凝土结构施工过程中，管道注浆的密实度是桥梁安全性与稳定性的基础保障。是为了保护桥梁预应力构件内的钢绞线或螺纹钢，不受外部因素下的水、空气的侵蚀。管道压浆料有着流动性、充盈度好等优势，虽然在实际的施工应用中优点很多，但是桥梁预应力管道注浆密实度是否符合密实度标准，仍旧需要专业检测技术进行注浆密实度的检测。通过分析检测技术要点和检测存在的问题及改善措施，确保压浆密实度检测的准确可靠。
岳 吴
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Infant Mental Health Journal: Infancy and Early Childhood, EarlyView.Abstract Maternal substance use is a pressing public health issue that confers risk for maternal health, the parent‐infant relationship, and child development. Integrated interventions that jointly address maternal substance use and child development have shown promise for enhancing child outcomes.
Sophie Barriault +6 more
wiley +1 more source
工程建设, 2023 随着我国经济水平的不断提升，公路桥梁施工项目要求越来越多，预应力技术以其自身独有的特殊性质及特点优势，在路桥施工中表现出显著的效果。建筑单位应当将预应力技术作为施工的核心重点，结合实际工程情况，做好设计与把控，积极探索利用预应力技术加固路桥施工的办法，确保延长路桥使用寿命，提高路桥抗疲劳性，增加路桥整体经济效益。本篇文章将从预应力技术在路桥施工重点应用领域到技术要点进行分析，详述预应力技术应用策略。
仁全 张
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Risk, Hazards &Crisis in Public Policy, EarlyView.Abstract The current body of multidisciplinary literature on crisis management still has some unresolved problems. This paper focuses on the following four “controversial issues” in dealing with crises: the usefulness of emergency plans; early signal detection; decision‐making amid high uncertainty; and the centralization/decentralization dilemma.
Giliberto Capano, Federico Toth
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Combating infections under siege: Healthcare challenges amidst the military assault in Gaza
World Medical &Health Policy, Volume 17, Issue 1, Page 188-213, March 2025.Abstract The ongoing Israeli military assault on Gaza has caused a devastating collapse of healthcare infrastructure, resulting in an unprecedented surge in infectious diseases. The destruction of sanitation systems, restrictions on medical supplies, and displacement of civilians have created an environment conducive to the rapid spread of waterborne ...
Bilal Irfan +24 more
wiley +1 more source
疲劳荷载特性对8.8级M24高强度螺栓疲劳裂纹扩展机理影响探析
Jianzhu Gangjiegou Jinzhan, 2023 为研究常幅疲劳荷载特性对高强度螺栓疲劳裂纹扩展的影响，针对钢结构端板连接用8.8级M24高强度螺栓在不同应力比/应力幅作用下常幅疲劳试验所得到的24个试件断口形貌进行定量分析，并采用ABAQUS软件数值模拟高强度螺栓应力集中情况，探讨含初始裂纹高强度螺栓裂纹尖端应力强度因子与荷载特性、预制裂纹形状之间的关系。结果表明：在轴向受拉疲劳荷载作用下，螺母与螺栓啮合第1圈螺纹处为疲劳断裂最不利位置；试件断口稳定扩展区面积与应力比/应力幅呈负相关，快速扩展区面积与应力比/应力幅呈正相关 ...
樊丽轩 +4 more
doaj
Policy Effectiveness in Managing Drug Shortages: Evidence From South Korea (2015–2024)
World Medical &Health Policy, EarlyView.ABSTRACT Drug shortages represent a growing policy challenge for healthcare systems worldwide. This study investigates actual drug shortage events in South Korea from 2015 to 2024, using a “Shortage Occurred vs. Shortage Non‐Occurred” framework to distinguish real‐world disruptions from administrative classifications.
Seung‐Rae Yu
wiley +1 more source