Results 141 to 150 of about 39,766 (300)
Preparation and Pervaporation Performance of Polyetherketone/MOFs Nanocomposite Membranes [PDF]
, 2017 渗透汽化（PV）是一种新型的液体混合物分离纯化技术，理论上适用于一切液体混合物的分离，具有高效、过程简单、能耗低、绿色清洁等特点。膜材料是PV之关键，决定了分离体系和分离效率。酚酞侧基聚芳醚酮（PEK-c）是一种常用的高分子膜材料，具有耐高温、机械强度高、成膜性好等特点，然而其较差的渗透性限制了在PV中的应用。为此，论文采用金属有机框架化合物（MOFs）纳米粒子填充PEK-c以制备高渗透性渗透汽化膜材料，并考察MOFs填充对复合膜结构和PV性能的影响，探究其内在的作用机理。主要研究内容如下： （1 ...
高润升
core
Review of Policy Research, EarlyView.ABSTRACT This study examines the paradoxical relationship between policy learning and capacity: governments need certain capacities to learn effectively, yet these same capacities often emerge from previous learning experiences. Through a comparative analysis of Hong Kong and Singapore's responses to SARS and COVID‐19, we demonstrate how policy ...
Shubham Sharma, Xun Wu, Gleb Papyshev
wiley +1 more source
冠心病患者LDL-C/HDL-C比值与冠脉病变严重程度的相关性
Zhongshan Daxue xuebao. Yixue kexue ban, 2018 【目的】探讨冠心病患者脂蛋白胆固醇、载脂蛋白各个指标尤其是 LDL-C 与 HDL-C、apoA1 与 apoB100的相关性，以及各个指标及比值与冠脉病变严重程度的相关性。【方法】选取2013-2014年在中山大学附属第三医院住院接受PCI术的冠心病患者301例，入院后检测患者术前空腹血脂（包括TG、TC、LDL-C、HDL-C、 apoA1、apoB100），用 Gensini 评分表示冠脉病变严重程度。根据 Gensini 评分结果将患者分为 A 组（
黄卓山 +4 more
doaj
Updated insights into the molecular pathogenesis of canine atopic dermatitis
Veterinary Dermatology, EarlyView.Abstract Atopic dermatitis (AD) is a common and chronic inflammatory skin disease with frequent relapses. The genomics revolution has greatly contributed and revolutionised our knowledge of human AD; understanding the molecular skin fingerprint of AD and associated pathogenic immune pathways has led to preclinical assessments of several novel ...
Frane Banovic
wiley +1 more source
Guangtongxin yanjiu, 2007 光纤流量传感器是一种基于光信号的新型流量传感器。光纤中传输的光信号受到流量的作用,其强度、相位、波长等参数都会发生变化,通过检测光信号相关的变化可得到相应的流量大小。文章就几种类型的光纤流量传感器的工作原理及特性进行了阐述,对它们的优缺点进行分析比较,并提出了改进方案。
张倩, 乔学光, 傅海威
doaj
, 2010 考虑外延钙钛矿型铁电薄膜内的等效应力、表面晶格变化和表面电荷引起的退极化效应等机电耦合边界条件,利用铁电薄膜系统的动态金茨堡-朗道方程(DGL),系统分析和讨论了外延铁电薄膜相变温度与临界相变厚度的尺寸效应.结果表明,铁电薄膜相变温度与临界相变厚度完全依赖于各种与薄膜厚度相关的力电耦合边界条件.也给出了BaTiO3外延铁电薄膜相变温度在各种边界条件下随厚度的变化,从结果看出 ...
周志东, 张春祖, 张颖
core
Veterinary Dermatology, EarlyView.Background – Canine atopic dermatitis (cAD) is a chronic, inflammatory, multifactorial and pruritic disease. The presence of skin barrier impairment (e.g. filaggrin alterations), along with abnormal immune responses, can negatively impact cutaneous barrier function.
Wendie Roldan Villalobos +5 more
wiley +1 more source
Effect of Tungsten Oxide Powders with Different Characteristics on the Characterization of Hydrogen Reduced Tungsten Powders [PDF]
, 2017 本文详细研究煅烧温度、抽风频率和转速对APT粉末煅烧获得氧化钨粉末特性 的影响，并详细分析了煅烧过程中粉末粒度和形貌变化规律、氧化钨相变机理、WO3 晶粒生长机理及WO2.72晶粒生长机理。而后根据XRD对氧化钨粉末相结构和相成分 及SEM对氧化钨粉末颗粒(晶粒)尺寸和形貌的检测结果，将获得的氧化钨粉末分成 四组，氢还原制备三种粒度级别(0.7μm，2.5μm及8.0μm)的钨粉末，研究氧化钨原 材料中WO3晶粒尺寸，WO2.72晶粒尺寸和形貌，WO3晶体结构及相成分对还原钨粉 末特性的影响 ...
龙本夫
core
Veterinary Dermatology, EarlyView.Background – Inhibition of the Janus kinase (JAK) pathway is a well‐established option for canine atopic dermatitis (cAD). Objective – To evaluate the efficacy and safety of ilunocitinib, a novel JAK inhibitor for the control of pruritus and skin lesions in client‐owned dogs with cAD.
Sophie Forster +5 more
wiley +1 more source