Results 21 to 30 of about 1,158,038 (155)
Veterinary Dermatology, Volume 36, Issue 5, Page 552-565, October 2025.Abstract Background Canine pyoderma is one of the most common presentations in small animal practice, frequently leading to antimicrobial prescribing. Objectives To provide clinicians with antimicrobial treatment guidelines for staphylococcal pyoderma, including those involving meticillin‐resistant staphylococci.
Anette Loeffler +9 more
wiley +1 more source
Jianzhu Gangjiegou Jinzhan, 2012 以结构重量为目标函数,考虑构件稳定应力约束、强度应力约束、长细比约束和结构位移约束,对弦支穹顶结构进行了尺寸优化设计研究。为有效引入位移约束,采用位移关于构件截面积梯度分量权重来增加构件截面积。为提高设计变量的搜索效率,对钢管、钢索和钢拉杆规格库进行了优化排序处理,显著提高了优化搜索速度。采用优化设计方法,对深圳大运会篮球馆屋盖弦支穹顶结构进行了尺寸优化设计研究。研究结果表明,在构件稳定应力、强度应力、长细比和结构刚度（位移约束）等约束满足设计要求前提下,结构用钢量显著减少。优化设计方法搜索速度很快 ...
刘树堂
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Veterinary Dermatology, Volume 36, Issue 3, Page 234-282, June 2025.Background – Canine pyoderma is one of the most common presentations in small animal practice, frequently leading to antimicrobial prescribing. Objectives – To provide clinicians with antimicrobial treatment guidelines for staphylococcal pyoderma, including those involving meticillin‐resistant staphylococci.
Anette Loeffler +9 more
wiley +1 more source
Jianzhu Gangjiegou Jinzhan, 2009 冷弯薄壁型钢作为一种高效经济型材已经被广泛运用于国民经济的各个部门,其承载力高,受力性能好,可以节约材料、减轻构件自重,具备良好的经济效益,开拓了主要借助优化截面形状而不是单纯依赖增加材料用量及改善材料特性来提高材料利用率的新途径[1]。本文以200mm高Z型檩条为例对冷弯薄壁型钢檩条截面作了更深入的研究,从檩条的高度、厚度、卷边、卷边角度、弯角半径等截面参数及实际工程运用方面作比较,通过综合比较,结合工程实践,得出较优的檩条截面。
费智
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World Medical &Health Policy, Volume 16, Issue 4, Page 558-576, December 2024.Abstract Background Over the past decade, the ascent of personalized medicine (PM) has catalyzed pivotal transformations in healthcare systems on a global scale. Recognizing its crucial importance, the European Commission has prioritized PM within its research directives, allocating funding for international collaborative projects, such as the ...
Marzia Di Marcantonio +6 more
wiley +1 more source
Policy &Internet, Volume 16, Issue 1, Page 149-172, March 2024.Abstract Crowdfunding platforms remain understudied as conduits for ideological struggle. While other social media platforms may enable the expression of hateful and harmful ideas, crowdfunding can actively facilitate their enaction through financial support.
Matthew Wade +2 more
wiley +1 more source
Jianzhu Gangjiegou Jinzhan, 2022 型钢混凝土柱是一种抗震性能优越的组合构件，经常被用于高层或超高层建筑中。近年来为了满足建筑物美观及室内装饰装修的要求，国内外学者针对型钢混凝土异形柱开展了相关研究，其中最常见的异形柱截面类型为十字形、L形和T形。以收集的型钢混凝土异形柱抗震性能试验为基础，对型钢混凝土异形柱的截面曲率进行分析，通过弯矩-曲率曲线研究曲率与构件变形性能的关系，确定异形柱屈服曲率和极限曲率的计算方法，利用截面屈服曲率和极限曲率得出位移延性系数。通过参数分析，研究构件的截面曲率变化情况，并通过参数拟合 ...
王威 +4 more
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, 1986 通过解析求解纳维尔-斯托克斯方程,本文给出了矩形截面直管中的层流振荡流动解。该解适用于不同的截面高宽比r和不同的振荡流动雷诺数。对典型的r和λ(雷诺数的平方根),给出了振荡流动速度的振幅比和相位差的等值线分布以及振荡流动速度随时间的变化,可以看出流动的速度分布如何从低频高粘性类型向高频低粘性的边界层流型逐渐变化;也可以看出管的边壁和角部对振荡流动的影响。当振荡频率ω为零时 ...
浦群, 林同骥
core
Jianzhu Gangjiegou Jinzhan, 2004 按照“钢管混凝土统一理论”的推断:钢管混凝土构件性能的变化是随截面形状的改变而变化,变化是连续的,设计方法是统一的。本文介绍了采用塑性断裂理论描述三向受压混凝土的本构关系,用试校法确定三个主要系数的最优值,得到了只与混凝土性质有关的本构关系。加上钢材三向应力状态的本构关系,采用有限元法首次得到了等效截面的圆形、八边形、正方形和矩形钢管混凝土的截面上高斯点的应力分布,和平均应力与纵向应变的全过程关系曲线。由全过程关系曲线得到了各种截面构件的轴压强度指标与轴压模量 ...
钟善桐
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Jianzhu Gangjiegou Jinzhan, 2013 凯威特网壳的设计参数主要包括跨度、矢高、环向重复区域份数、径向节点圈数和杆件截面尺寸,每类参数的变化都会引起结构内力的重新分配进而改变结构的受力规律;这5类设计参数相互耦合,但应存在一个"最佳组合"使网壳结构的网格尺寸合理、用钢量最省且受力最为合理。对跨度30～90m、矢跨比1/3～1/7,环向重复区域份数6～12,径向节点圈数6～16的数百个单层凯威特型球面网壳模型进行了截面优化设计,以结构用钢量最省为优化目标,优化过程充分考虑了结构强度、刚度和整体稳定性,得出了凯威特型网壳5类主要设计参数的 ...
陈世英, 鹿晓阳, 綦文, 赵晓伟
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