Results 121 to 130 of about 32,158 (231)

Policy Innovation in Barcelona and Utrecht: The Role of Advocacy Coalitions in Multilevel Contexts

open access: yesPolitics &Policy, Volume 54, Issue 2, April 2026.
ABSTRACT This article explores how policy innovation in local social policies emerges within a multilevel governance context. Drawing on the Advocacy Coalition Framework (ACF), it examines how beliefs, coalitions, and institutional arrangements interact across different political arenas—European, national/regional, and local—to foster innovative social
Bruno Miguel Oliveira
wiley   +1 more source

国家科委批准两项高压电器国家标准

open access: yesGaoya dianqi, 1966
1964年12月21日至24日,国家科委组织了水电部、一机部有关领导机关、制造、使用、科研等十六个单位,对高压电器研究所提出的“交流高压电器在长期工作时的发热 ...
叶德隆
doaj  

Mechanisms of activity hepatic stellate cells induced myeloid-derived suppressor cells accumulation and migration [PDF]

open access: yes, 2015
原发性肝癌(hepatocellularcarcinoma,HCC)是全球第五大常见的恶性肿瘤,在肿瘤致死的病因中排名第三位。在全球,每年有超过50万人死于肝癌,且一半以上在中国。随着科学研究的发展,科研人员发现肝癌的发生发展不仅仅是病毒感染、环境因素、基因突变这些因素,肿瘤微环境对肿瘤的发生、发展、复发转移有着重要作用。肝脏是一个具有“免疫特赦”的脏器,肝癌微环境中的非实质细胞及其细胞因子是肝癌的免疫逃逸,复发转移的重要因素。 肝星状细胞(hepaticstellatecell,HSCs ...
许雅苹
core  

Historical Institutionalism and Transnational Influence: Social Policy Responses to the Great Depression in the United States and Canada

open access: yesPolitics &Policy, Volume 54, Issue 2, April 2026.
ABSTRACT The Great Depression was a turning point in the development of social programming in North America. This paper explores the politics of social policy expansion during the Great Depression in the United States and Canada through an analytical lens that combines the insights of historical institutionalism and the analysis of transnational ...
Daniel Béland   +2 more
wiley   +1 more source

制造技术与机床月刊

open access: yesJixie chuandong, 2015
<正>由中国机械工程学会和北京机床研究所主办,是机床及机械制造领域专业技术期刊,创刊于1951年,国际标准大16开本。属中文核心期刊,中国科技论文统计用刊、RCCSE中国核心学术期刊和《中国学术期刊文摘》摘录用期刊。报道国内外制造技术与机床方面的科技成果和经验,为提高我国机械制造业技术水平而服务。主要栏目有:每期技术主题、专题专访、国内外动态、综述、设计与研究、工艺与检测、汽车制造技术、模具技术、制造业信息化 ...
doaj  

电瓷工艺装备设计分析与研究(十一)

open access: yesDianci bileiqi, 1994
电瓷工艺装备设计分析与研究(十一)鲁延宾(西安电瓷研究所西安710077)第十一章切割倒角研磨和胶装工艺装备设计分析与研究切割倒角、研磨、胶装和装配是电瓷制造的关键工序之一。高精度的工装和高净化的装配工作环境,实现装配机械化和自动化,是提高电瓷制造水...
鲁延宾
doaj  

精炼车间过滤机的自动控制系统设计Design of automatic control system for filter in refining workshop

open access: yesZhongguo youzhi
叶片过滤机是精炼车间脱色工段中非常关键的设备,设备前端后续的工艺阀门很多,有很多操作步骤和时间节点控制阀门的开启和关闭,操作复杂烦琐。为简化人工手动操作的烦琐性及为更多单机系统控制提供技术参考,以立式叶片过滤机为例,采用PLC和触摸屏的方式构建自动控制系统,控制叶片过滤机的单机运行和切换控制。自动控制系统的CPU采用西门子S7-1214C DC/DC/Rly,HMI采用西门子KTP1200触摸屏,并采用西门子TIA PORTAL ...
秦忠凯1,李亭亭1,刘宝友1,赵向军2 QIN Zhongkai1, LI Tingting1, LIU Baoyou1, ZHAO Xiangjun2
doaj   +1 more source

The study of chemical vapor deposition graphene growth mechanism based on isotope labelling technique [PDF]

open access: yes, 2016
石墨烯是一种只由单个碳原子层构成的理想二维材料,自2004年首次被Novoselov等人采用胶带法从高定向热解石墨表面剥离出来后,其高电子迁移率,高热导,高硬度,高透光率等一系列独特优异的物理化学性质就不断被揭示,近十几年来一直保持着其研究热点的领先地位,同时还带动了其他二维层状材料的研究热潮。 目前石墨烯主要的制备方法分为以下四类:机械剥离法、氧化还原法、碳化硅外延法和化学气相沉积法;其中化学气相沉积法在生长高质量大面积石墨烯方面表现出很大的优势,尤其是在铜衬底上已获得30英寸的大尺寸单层石墨烯 ...
黎琼钰
core  

Street‐Level Institutional Work: How Social Workers Maintain, Disrupt, and Create the Rules of Social Organizations

open access: yesEuropean Policy Analysis, Volume 12, Issue 2, Spring 2026.
ABSTRACT Research has shown that street‐level workers may shape public policies, yet less is known about the processes through which they attempt to influence institutional arrangements. This gap is particularly evident in corporatist welfare states, where multiple organizations are involved in social policy implementation.
Olivia Mettang
wiley   +1 more source

Mechanistic study of TREM2 mutations in increasing the risk of neurodegenerative diseases [PDF]

open access: yes, 2016
2型髓系细胞触发受体(Triggeringreceptorexpressedonmyeliodcells2,TREM2)是中枢神经系统(centralnervoussystem,CNS)中主要表达于小胶质细胞表面并参与机体固有免疫的一种受体蛋白,与其接头蛋白酪氨酸激酶结合蛋白(DNAXactivatingproteinof12kDa,DAP12)形成TREM2/DAP12复合物,从而调节小胶质细胞中的炎症反应和吞噬功能。TREM2属于Ⅰ型跨膜蛋白,其胞外段经过蛋白酶切割后产生可溶形式TREM2 ...
王哲
core  

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