Results 51 to 60 of about 45,636 (178)

变压器油纸绝缘RVM现场测试技术研究

open access: yesGaoya dianqi, 2015
结合现场试验,详细分析了回复电压试验的注意事项及影响因素,重点阐述和剖析了环境温度、残余电荷、强电磁场等现场因素对恢复电压测试法(return voltage measurement,RVM)测量结果的影响,以及消除或减弱这些因素影响的方法,以提高RVM方法对变压器绝缘优劣评估的准确性。
鄢仁武
doaj  

362名孕妇孕期抑郁状态及影响因素研究

open access: yesZhongguo shiyan zhenduanxue, 2021
目的调查孕妇孕期抑郁状况,研究孕期抑郁的影响因素。方法采用抑郁自评量表(Self-rating depression scale,SDS)和日常生活调查表开展问卷调查。以2016年6月-12月在北京、海南、安徽和云南4个地区调查的362名孕妇为研究对象,描述其人口学特征,采用χ2检验进行孕妇行为习惯对抑郁影响的单因素分析,采用Logistic回归分析进行孕妇孕期抑郁影响多因素分析。结果362例孕妇,抑郁患者102例(28.2%),其中轻度抑郁71例(19.6%),中度抑郁28例(7.7%),重度抑郁3例(
王瑞芬   +4 more
doaj  

An Empirical Analysis of RMB Exchange Rate ExpectationFeatures---- Based on the RMB Foreign Exchange Option [PDF]

open access: yes, 2016
自2005年汇改以来,人民币汇率浮动幅度不断扩大,人民币定价机制日趋 市场化。与此同时,伴随着人民币国际化进程的不断推进,影响人民币汇率的因 素更加复杂多元。因此,在人民币国际化程度不断提升的今天,人民币汇率变动 的研究面临新的挑战,显得越来越重要。人民币汇率预期作为前瞻性指标,对预 判汇率走势及变动具有重要作用,尤其如何从金融市场相关产品的价格中提取汇 率预期更具有实际意义。 因此本文基于一个月期人民币外汇期权数据提取人民币短期汇率预期,并对 人民币短期汇率预期分布特征及影响因素进行分析 ...
郑欣
core  

Who Deserves Scarce Health and Education Resources? How Policy Context Shapes Target Group Deservingness

open access: yesPolicy Studies Journal, EarlyView.
ABSTRACT The social construction of target populations (SCTP) framework emphasizes the ways in which target populations' levels of political power and deservingness shape the allocation of policy benefits, but less attention has been devoted to the conditions under which the same target population may be considered deserving in one policy context but ...
Elizabeth Bell   +3 more
wiley   +1 more source

The analysis of tax compliance and its influencing factors in Chaoshan area [PDF]

open access: yes, 2016
税收是一个国家得以正常运作的保障,税收收入的效果取决于征纳双方都能按照税法的规定自觉的遵守执行。所以纳税遵从情况直接影响税收征管的成本和效率,也关乎税收法定主义的实现和国家管理经济社会职能的有效发挥。但是自税收出现至今,纳税不遵从问题一直存在,严重碍了税收实现其经济职能,甚至于有的时候成为国家朝代更替的主要原因。特别是我国自改革开放以来,纳税人纳税意识一直较薄弱。再加上经济业务复杂多元,逃税漏税等行为更为隐蔽,以至于近些年的纳税不遵从情况更加严峻。而潮汕地区由于其地理位置、商业传统和人文理念等的特征性 ...
林伟鸿
core  

The Inclusion Trade‐Off: Comparing the Design and Functionality of Collaborative Governance Forums

open access: yesPolicy Studies Journal, EarlyView.
ABSTRACT Environmental challenges require collaboration across jurisdictions, often through forums or intermediary spaces for repeated interaction. A persistent forum design question concerns inclusion criteria, or which actors should be included.
Adam Wiechman   +3 more
wiley   +1 more source

What Drives Forum Rule Adaptation: Investigating the Influence of the Forum Founder and Polycentric Governance Linkages in Dutch Strategic Spatial Planning

open access: yesPolicy Studies Journal, EarlyView.
ABSTRACT Forums play an important role in addressing interdependent policy issues, and their effectiveness depends on the continuous adaptation of forum rules. Yet, it remains unclear whether rules are exclusively used and adapted to improve forum effectiveness.
Ingo Bousema   +3 more
wiley   +1 more source

Research on the Efficiency and the Influence Factors of Public Services of Local Governments in China [PDF]

open access: yes, 2016
本文侧重于对我国各地级市政府与民生领域相关的公共服务效率进行测算和评价,并在此基础上分析其主要影响因素。在具体实证研究中,本文以我国281个地级市地方政府2007-2013年的数据作为样本,采用DEA-Malmquist指数模型先对我国地方政府教育、医疗卫生、社会保障三项民生公共服务效率情况进行测算和评价,接着再对我国地方政府的民生公共服务效率进行测算和评价。在我国地方政府民生公共服务效率值的基础上,本文进一步采用Tobit受限回归模型来分析影响我国地方政府民生公共服务效率的主要因素 ...
刘学纯
core  

There Is Always a Bigger Fish. Determinants of Power Perceptions in Swiss Biodiversity Policy

open access: yesPolicy Studies Journal, EarlyView.
ABSTRACT The Advocacy Coalition Framework (ACF) views power as crucial in policy processes, but the nature of coalition power, its determinants, and how to empirically measure it remain understudied. In this article, we use a mixed method approach and social network analysis to explore power relationships in the biodiversity policy subsystem in ...
Alix d'Agostino   +2 more
wiley   +1 more source

A Study of the Location Selection of Foreign Direct Investment in Fujian Province [PDF]

open access: yes, 2016
在经济全球化的趋势背景下,尤其是2001年中国加入世贸组织之后,外商直接投资在我国迅速增长,随着2014年中国吸收的全球外商直接投资超过美国成为外商直接投资的头号目的地,外商直接投资在我国的经济生活中扮演的角色越来越重要,外商直接投资的区位选择活动更是引起了国内外学者的广泛关注。 福建省作为中国最早对外开放的省份之一,外商直接投资给福建省的经济增长提供了强大的动力,但是外商在福建省投资过程中也出现一些明显问题,如在产业结构方面,外资企业大多数为第二产业中的制造业,影响福建省产业结构的优化升级。另外 ...
魏志权
core  

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