Results 51 to 60 of about 30,229 (203)

带PEC端柱混凝土剪力墙抗震性能试验研究

open access: yesJianzhu Gangjiegou Jinzhan, 2023
为研究带PEC端柱混凝土剪力墙的抗震性能,对两片相同的带PEC端柱混凝土剪力墙试件进行了低周反复荷载试验研究。对试件的破坏现象、滞回曲线、骨架曲线、耗能能力、应变变化规律和承载力进行分析,并研究了轴压比的影响,结果表明:带PEC端柱混凝土剪力墙试件具有较高的承载能力和耗能能力,延性系数达到4.84~5.16,表现出良好的抗倒塌能力;随着试验轴压比的增大,试件的极限承载力有些许提高,但延性降低。按现行《组合结构设计规范》(JGJ 138—2016)中相关公式计算的承载力与试验值吻合较好 ...
李奉阁, 陈玥, 赵根田
doaj  

Comparative efficacy and safety of ilunocitinib and oclacitinib for the control of pruritus and associated skin lesions in dogs with atopic dermatitis

open access: yesVeterinary Dermatology, Volume 36, Issue 2, Page 165-176, April 2025.
Background – Janus kinase inhibitors (JAKi) have been shown to reduce pruritus and improve associated inflammatory skin lesions in canine atopic dermatitis (cAD). Objective – To evaluate the efficacy and safety of ilunocitinib, in comparison to oclacitinib, for the control of cAD in a randomised, blinded trial.
Sophie Forster   +4 more
wiley   +1 more source

The development of the Promoting First Relationships home visiting program and caregivers’ comments about their experiences across four RCT studies

open access: yesInfant Mental Health Journal: Infancy and Early Childhood, Volume 46, Issue 2, Page 181-198, March 2025.
Abstract Promoting First Relationships (PFR) is an evidence‐based home‐visiting program for caregivers and their children from birth to age 5 years. It focuses on caregiver–child interaction, attachment, and relationship quality using video feedback of unedited recordings to elicit reflection and provide positive feedback linked to knowledge ...
Monica Oxford   +7 more
wiley   +1 more source

Study on the cost of Grinding Gear with CBN wheel

open access: yesJixie chuandong, 1996
本文以20Cr2Ni4A渗碳淬火齿轮材料为研究对象,用刚玉砂轮及立方氮化硼砂轮进行磨削试验,就其生产效率及综合成本进行对比性研究。试验证明,使用立方氮化硼砂轮磨削齿轮可显著地降低磨削综合成本,为立方氮化硼砂轮在我国齿轮制造业的推广使用积累了经验。
杨勇波, 王翊, 林奕
doaj  

钢板剪力墙抗震行为与设计

open access: yesJianzhu Gangjiegou Jinzhan, 2007
本研究主要目的在于针对未束制型钢板剪力墙的使用性与消能特性加以改良,并研发束制型钢板剪力墙试体,共规划四座试体,3cm厚之低降伏LYS钢板为墙体:一座完全不加束制构件,另两座试体分别在LYS钢板墙体之两面以矩型钢管束制之,第四座则以钢筋混凝土板(简称为CP板)束制LYS钢板墙,于地震工程研究中心进行试验,同时并研究钢板剪力墙的分析模型,包括精准的Strip Model供研究者应用,与较简易的等效斜撑模型供工程实务应用。试验结果显示,束制型钢板剪力墙,LYS钢板挫屈所产生之声响减小 ...
蔡克铨, 林盈成, 林志翰
doaj  

[Research progress and clinical application of allergen nasal provocation test]. [PDF]

open access: yesLin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi, 2023
Han J, Lu M, Cheng L.
europepmc   +1 more source

一种新型无源光网络智能测试方案

open access: yesGuangtongxin yanjiu, 2015
基于eTOM(增强的电信管理运营图)运维模型,研究了PON(无源光网络)的网络运维模型,构建了智能光纤基础网络架构,研究了智能光电器件和光网络单元。结合电信运营商的业务和政策需求,重点研究了PON智能测试的关键技术,通过智能OTDR(光时域反射仪)+反射器实验测试数据,验证了内置OTDR+光介质膜反射器为PON智能测试的首选方案。
曾庆珠
doaj  

钢轨打磨车集尘系统设计与试验研究

open access: yes机械与电子控制工程, 2023
杨 全, 何建江
semanticscholar   +1 more source

圆弧齿轮单齿弯曲疲劳试验

open access: yesJixie chuandong, 1989
本文设计了圆弧齿轮单齿弯曲疲劳试验夹具,成功地在高频疲劳试验机上进行了圆弧齿轮弯曲疲劳强度试验,为提高圆弧齿轮弯曲强度开劈了新的试验研究途径。
刘鹄然
doaj  

山东省终端农业水价改革试验研究 Study on Terminal Agricultural Water Price Reform Experiments in Shandong Province

open access: yes, 2017
山东省以推行终端农业水价制度为目标,进行了一系列的水价改革试验,改革试验在实验区内促进了农业节约用水和水资源利用效率的提高,同时存在试验水价依然偏低、用水计量不准确、水费收取不科学、差别水价制度应用面窄等问题。建议适当提升试验水价、完善计量设施、采取用水者协会制度管理水费、定额管理农业用水超定额加价收费等。 Taking promoting terminal agricultural water price system as a primary objective, a set of water ...
胡继连, 曹金萍, 靳雪
semanticscholar   +1 more source

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