首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   1013篇
  免费   56篇
  国内免费   4篇
管理学   13篇
劳动科学   1篇
民族学   140篇
人口学   83篇
丛书文集   33篇
理论方法论   50篇
综合类   257篇
社会学   492篇
统计学   4篇
  2024年   6篇
  2023年   15篇
  2022年   7篇
  2021年   29篇
  2020年   54篇
  2019年   58篇
  2018年   58篇
  2017年   55篇
  2016年   66篇
  2015年   32篇
  2014年   40篇
  2013年   204篇
  2012年   42篇
  2011年   23篇
  2010年   28篇
  2009年   42篇
  2008年   25篇
  2007年   39篇
  2006年   31篇
  2005年   27篇
  2004年   33篇
  2003年   27篇
  2002年   28篇
  2001年   26篇
  2000年   27篇
  1999年   13篇
  1998年   12篇
  1997年   3篇
  1996年   2篇
  1995年   2篇
  1994年   3篇
  1993年   3篇
  1992年   4篇
  1991年   3篇
  1989年   3篇
  1988年   2篇
  1987年   1篇
排序方式: 共有1073条查询结果,搜索用时 15 毫秒
11.
通过扩展基础加筋风积砂地基的室内模型上拔试验 ,研究了不同试验方案的加筋土体在极限上拔承载力 ,并提出了加筋风积砂土体的上拔承载力的理论计算公式  相似文献   
12.
根据挤扩多盘桩桩土效应及土体极限承载力的理论分析和试验研究的成果,对挤扩多盘桩土体极限承载力的多种影响因素进行了定性或定量的分析,为进一步综合考虑各项因素进行挤扩多盘桩基础设计,提供了理论依据。  相似文献   
13.
My study explores how children established and crossed gender boundaries in four recreational settings with different racial compositions and patterns. Children generally marked boys' gender boundary crossing as more deviant than girls' crossing. However, the amount of gender salience structured into each setting and the salience of race in each setting affected campers' perceptions of the risks from gender boundary crossing and, thus, their strategies for crossing. My findings suggest that the perceived race of the actor may be less important than the race of the audience. Also crucial are the ways in which race category membership gives meaning to gender boundaries and to gender deviance in a particular situation.  相似文献   
14.
结合具体工程实例,对静载试验极差大于平均值30%的复合地基,如何确定承载力标准值进行探讨,提出较为合理的取值方法.  相似文献   
15.
This paper examines the entry of Asian immigrant women into a gendered labor market via government-funded job training programs. The focus is on the intake processing of clients into an employment training program operated by a community based organization. The study reveals that women's family responsibilities and the cultural capital they bring function to screen them into or out of training programs and ultimately shape their location in the workforce. The study thus draws attention to how race, class, and gender enter into the organization of Asian immigrant women into the labor market. This investigation is based in institutional ethnography (Smith 1987), a research strategy which displays how activities in a particular setting are coordinated with more extended forms of social organization. The study shows that the overriding concern with successful placement in a job as mandated by government regulations is a critical factor in selecting the women for these programs.  相似文献   
16.
为了开发大型贯流式水轮发电机组径向轴承,在试验台上采用了360的模型轴承对1740可倾6瓦块原型轴承进行模拟试验研究,最高试验比压3.37 MPa、最低线速度3.77 m/s、最高线速度22.62 m/s。试验表明:载荷、进油压力、转速、进油温度和安装间隙比等,对轴承油温升、油流量、功耗、瓦温及油膜厚度等都存在不同程度的影响,其中载荷和转速的影响比较显著。按照模型轴承指导设计的红岩子机组1740轴承已在电站可靠运行,同时开发了径向轴承热弹流计算程序,可以预测径向轴承的油膜压力、油膜温度、油膜厚度、损耗、流量等参数。  相似文献   
17.
平板载荷试验是检验强夯加固填土地基承载力的重要手段,基于平板载荷试验的切线模量法以安全系数和允许沉降两个控制因素结合Terzaghi极限承载力理论可计算不同沉降要求的地基承载力。为了验证切线模量法计算强夯地基承载力的可行性和优越性,对现场填土地基进行强夯加固后进行平板载荷试验和超重型动力触探试验,以三组[WTBX]平板载荷试验9个试验点的测试结果为基础,反演该地基土性参数并通过切线模量法绘制p s曲线,发现切线模量法计算的p s曲线与现场p s曲线能够很好的吻合,故可用切线模量法计算基础中心不同沉降量所对应的地基承载力,且能够弥补平板载荷试验和动力触探测试方法的不足,故为浅基础的设计提供了一条新的途径。  相似文献   
18.
ABSTRACT

Stress-related conditions such as burnout and post-traumatic stress disorder are a growing concern in the humanitarian sector. Aid workers themselves report not only that mental health problems are common, but that the support they receive from their employers is insufficient. Problematically, the experience of the international aid worker – particularly those who are white and from the global North – is often foregrounded in explaining what constitutes stress and related mental health problems. This indicates a wider problem of what is required of ‘the perfect humanitarian’ – a personality that is gendered and racialised – and how this influences the different experiences and treatment of national and international staff from aid agencies. This article explores the organisational culture and working conditions of humanitarian settings and their impact on the mental health and well-being of staff. It argues that there is a structural dimension to stress that is less to do with external security threats and more to do with the specific infrastructure, policies, and practices of humanitarian operations, with implications for aid workers which cut across dimensions of race, gender, and nationality.  相似文献   
19.
Suburbs across the US are experiencing dramatic demographic shifts, yet there is little research available on how suburban school districts are dealing with these changes. In this article, we examine the discourses surrounding race and demographic change in three suburban school districts that have been undergoing rapid demographic changes and which contain demographically distinct areas within their district boundaries. Utilizing a critical discourse analysis (CDA) approach, we analyze how the policy context (federal and state) frames actors’ discourses and understandings of race, paying particular attention to the political and institutional factors affecting school policy. We illustrate how the discourse, in turn, is related to the actions (or inactions) taken by district and school leaders to respond to demographic change. We conclude the article by discussing policy implications and potential challenges districts may face in the future if efforts to purposively address racial changes continue to be avoided.  相似文献   
20.
This paper is an account and critical analysis of the psychodynamic and systemic consultancy that the author provided to a care home (and the voluntary organisation running it) over a period of about 16 months. In addition two emergent, linked themes are identified and discussed: family and gender roles in care homes, and racism and colonialism. Care homes are of course part of the society in which they exist and of which they are a product. This means that all the overt and covert psychological and social pressures, defences and trends that occur in the wider society, for individuals, families, groups and communities are also to be found in care homes and in the organisations that run them. They are not isolated from these forces, indeed, it is argued in this paper, the forces are intensified in the ‘hot house’ environment of a care home and, if ignored, avoided and denied, result in the exploitation, abuse and neglect of both staff and residents.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号