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A multi-dimensional and multi-scalar perspective is used to contrast different experiences with community development involving new settlers, the historic riverine peasantry and Amerindians on and beyond the advancing frontier in the Brazilian Amazon. Local development is shown to occur only when a compromise is reached between the economic development of individual farmers, common social background and community political empowerment. However, the local development of communities does not necessarily result in regional development because contradictions present between political actors can cancel out gains in one dimension or scale vis-à-vis others and so frustrate wider processes. 相似文献
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L. DECANINI L. LIBERATORE F. MOLLAIOLI A. DE SORTIS 《Journal of Earthquake Engineering》2013,17(5):609-635
On September 7, 1999 an earthquake with magnitude M W =5.9 occurred close to the city of Athens in Greece. More than 80 buildings collapsed, about 150 deaths and hundreds of injuries were reported. Soon after the event a damage investigation was carried out by two of the authors in the most heavily struck areas. The most serious damages were observed in the northern suburbs of Athens, where reinforced concrete frames and masonry buildings represent the prevalent construction systems. The hysteretic energy demands imposed on RC buildings should have been rather severe considering the structural systems characteristics and the inadequate construction details. However, over-strengths, redundancy and especially the presence of infill walls, provided a significant increase of the seismic capacity and contributed to the survival of many buildings. The objective of the present work is to reproduce and analyse the response of typical RC frames subjected to the 1999 Athens earthquake in areas where the observed damage was particularly severe but no recordings of the ground motion were available. After a general overview of the seismotectonic environment, seismological data, observed macro-seismic intensities, structural typologies and observed building behaviour, an attempt is made to identify representative excitations in the meizoseismal area. Specifically, the required accelerograms are obtained by modifying available records so as to reproduce a given global energy content and to be consistent with the observed damage. To study the seismic response of RC models, the obtained accelerograms are used to perform nonlinear dynamic analyses. 相似文献
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SARAH A. FINKELSTEIN 《The Canadian geographer》2010,54(2):133-138
Paleoenvironmental science has experienced a recent surge in interest and activity as concerns grow over global environmental change. Key research questions in the biotic realm of paleoenvironmental science focus on explaining climatic change at time scales of decades to centuries and understanding ecosystem responses to these changes. Biotic responses are increasingly being studied at smaller spatial scales to identify local factors that determine the sensitivity of a particular system to climatic change. These findings can then be applied to solving a variety of problems, such as setting conservation targets or testing mechanisms for observed climatic and biogeographic phenomena. Research approaches commonly used today include hypothesis testing, which has now become more sophisticated as paleoecologists and paleoclimatologists integrate with modellers. Other frameworks involve the quantitative integration of multiple proxy indicators and the use of extensive publicly available data networks to produce new datasets for paleoclimatic reconstructions and other applications. 相似文献
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WILLEM DE BLÉCOURT 《History and theory》2013,52(3):361-379
This article considers the importance of a spatial dimension for witchcraft research, which has so far been largely neglected. In twentieth‐century Europe people in certain regions still considered their world in terms of witchcraft; they attributed misfortune to bewitchments and usually blamed their neighbors. Here a part of Flemish‐speaking Belgium is investigated with the help of legend texts collected in the 1960s. The witchcraft discourse that informed these texts did not just contain formulations of space; sometimes it also determined how people negotiated space. In this part of Flanders, witchcraft was embedded in Roman Catholicism; monasteries were the favored destinations of all those who considered themselves or their family members bewitched. In order to find cures for bewitchments people undertook hazardous journeys of considerable distance and found their efforts hindered by the witch they sought to counteract. The measures against evil influences that they were given were meant to consolidate the boundaries between their own (private) space and the (outside) space where witches roamed. Bewitchments were generally blamed on women. In the contemporary patriarchal social order, both public and domestic spaces were nearly always under men's control. This is why bewitchment was caused less by transgressions of male‐defined boundaries than by infringements of bodily spaces such as by eying or touching somebody else's children. This suggests a different approach to female space based on notions of proximity. 相似文献
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