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41.
内蒙古自治区农村人口多维贫困特征测算与分析 总被引:3,自引:0,他引:3
针对国家精准扶贫需求,构建基于A-F双临界值法的多维贫困度量模型,进行内蒙古自治区农村人口多维贫困特征的总体测算与分析,并分别分析多维贫困的空间集聚效应及不同分类体系下的贫困分异特征。结果显示:①研究区西部存在大面积高度贫困县单元,中部存在呈东西条带状分布的中度贫困县单元,东部地区贫困程度呈现\"南高北低\"状态;②研究区主要致贫因素为:人均纯收入、家庭健康、平均教育年限,一般致贫因素为燃料类型、资产、房屋结构,次要致贫因素为:饮水情况、通电情况、儿童入学率;且大部分贫困指标呈显著空间集聚效应;③研究区西部县际贫困特征差异较小,东部存在显著的南北分布差异;④不同类型县各贫困指标差异不同。 相似文献
42.
古建筑木结构的残损点指标是对古建筑木结构进行结构安全评估和加固修缮设计的重要指标,目前主要依据1992年制定的《古建筑木结构维护与加固技术规范》(GB 50165—92)中的规定,为了对该规范中的构架整体性残损点指标进行验证和补充,本研究通过对南方地区传统的穿斗木构体系和抬梁木构体系的典型榫卯节点和构架的试验研究,得出两种木构体系结构的整体性关键残损点指标,并与GB 50165—92规范进行比较分析。结果表明:规范规定的抬梁式木构架和穿斗式木构架的局部倾斜残损点比试验结果小,规范值偏于安全。规范中规定的抬梁式木构架梁柱榫卯连接残损点略小于试验结果,规范值偏于安全;而规范中规定的穿斗式木构架梁柱榫卯连接残损点对于燕尾榫穿斗木构而言是安全的,但对于透榫穿斗木构而言,则是不安全的。 相似文献
43.
44.
中国南方十一座旅游名城避寒疗养气候旅游资源评估 总被引:6,自引:0,他引:6
文章对人体健康与气候环境作了分析,阐明寒冷气候与呼吸道系统、心血管系统、消化道系统疾病发病率、死亡率的对应关系。运用生理气候舒适度指数,对中国南方11座旅游名城的避寒气候作了横向分析比较,得出中国最佳避寒疗养地的区域格局,为开展中国冬季避寒疗养旅游提供了发展基础。 相似文献
45.
探究不同尺度下知识密集型制造业的集聚特征及其形成机制。结果显示:①计算机行业的集聚强度最高,京津冀各行业集聚强度高于长三角和珠三角地区;②城市群尺度各行业多集中在100 km范围内,京津冀呈现“核心—边缘”结构,长三角为“扇形”结构,珠三角具有“多核心”特点;③城市尺度大部分行业集中在40 km范围内,少数行业在边缘区集聚,京津冀表现为“蔓延型”集聚,长三角为“局部型”和“多中心型”,珠三角为“多中心型”;④城市群尺度上的集聚特征依据地区资源禀赋和比较优势,城市尺度上的集聚特征则依生产成本上的空间差异、产业政策和地方保护主义等因素二有所不同。 相似文献
46.
《Journal of Medieval History》2012,38(1):70-76
This short article introduces a previously unknown pre-Reformation chronicle entry about Robin Hood. Until now, no English chronicle entry has been discovered, and only Scottish authors are thought to have set Robin in a chronological context. The new find places Robin Hood in Edward I's reign, thus supporting the belief that his legend is of thirteenth-century origin. It contains a uniquely negative assessment of the outlaw, and provides rare evidence for monastic attitudes towards him (topical, in light of the outlaw's anti-monastic behaviour). By mentioning Sherwood it buttresses the evidence for a medieval connection between Robin and the Nottinghamshire forest with which he has become so closely associated. It also constitutes more evidence for the strength of West Country Robin Hood traditions in the late middle ages. 相似文献
47.
An atypicality index has been used to compare the chemical compositions of 11 British prehistoric implements (axes and axe‐hammers, and a mace) with previously suggested and likely sources in South Wales (Group XIII spotted dolerite from the Carnmenyn area, and Group VIII rhyolite from Carnalw). Atypicality indices together with mineralogy indicate that only two out of six supposed Group XIII implements are likely to be Group XIII, and only one of the five rhyolite implements is likely to originate from Carnalw. These results provide statistical support for earlier provenancing of seven of the implements, and provide the first geochemical source information for four implements. The results illustrate the usefulness of the atypicality index in archaeology, and support the idea that Groups XIII and VIII comprise a larger variety of chemical types than previously thought. Further work is now needed to determine how prevalent this variety is within these implement groups. 相似文献
48.
Robert Schweizog Alan Collins 《Tijdschrift voor economische en sociale geografie = Journal of economic and social geography = Revue de géographie économique et humaine = Zeitschrift für ?konomische und soziale Geographie = Revista de geografía económica y social》2015,106(1):17-35
The analysis of the location patterns of economic activities in both Europe and the US has been addressed in an extensive literature dependent on increasingly more sophisticated techniques that arguably reframe debate away from the policy questions in focus and towards debate on the complex empirical techniques that seem to be in vogue at any given time. In part this has been a response to some clear shortcomings in the use of simple locational Gini coefficients. It is argued herein that simple index approaches can still retain value if augmented with intuitive reading of some relevant maps. An example of the utility of this approach is provided in relation to the location patterns of four exemplar manufacturing industries in the EU and USA. 相似文献
49.
《Asian Population Studies》2013,9(2):134-148
Using a longitudinal dataset from the China Health and Nutrition Survey (CHNS), growth-curve models were employed to examine age trajectories of body mass index (BMI) for 1694 subjects in China, who were aged 2–11 in 1993 and followed in four waves (1997, 2000, 2004 and 2006). Based on age- and sex-specific BMI cut-points recommended for international use, the prevalence rates of overweight and underweight in the transition from childhood to adulthood (age 6–18) were also predicted. Sex, family income, rural–urban residency and geographical location were found to be significantly associated with the onsets, slopes, and acceleration of age trajectories in BMI, overweight, and underweight (p < 0.01). Children who had lower prevalence of underweight in the transition from childhood to adulthood exhibited higher prevalence of overweight than their counterparts. Moreover, the age interval during which children were more vulnerable to an increase in underweight was different from that for overweight. There were substantial regional disparities in the age trajectories of childhood overweight and underweight. Whereas the analyses suggest that the dual burden of nutritional problems (the coexistence of overweight and underweight) in China, is more like two sides of a coin than two separate health issues; the critical age period for intervening in childhood overweight is different from that of childhood underweight. Geographical indicators of childhood obesity in China deserve further attention. 相似文献
50.
Sophia Gräfe 《Berichte zur Wissenschaftsgeschichte》2022,45(1-2):55-86
This paper considers the epistemic career of visual media in ethology in the mid-20th century. Above all, ethologists claimed close contact with research animals and drew scientific evidence from these human-animal communities, particularly in public relations. However, if we look into the toolboxes of comparative behavioral biologists, it becomes evident that scientifically valid research results were primarily obtained by experimenting with model images. These visual specimens tell a technical story of the methodological requirements in behavioral science necessary to bridge everyday observations between the laboratory and the field. By neutralizing individual traces of animal bodies as well as their observers, they prompted the abstraction of ethological hypotheses. The case study of East-German biologist Günter Tembrock (1918–2011), who maintained his own collection of newspaper clippings, drawings, photographs, and films, offers a new perspective on the methodological development of this field. Furthermore, this article contributes to a scholarly discussion geared toward expanding the spaces of ethological research. My analysis of the image collections of the Forschungsstätte für Tierpsychologie presents the archive as a relevant site of study in the history of ethology. 相似文献