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New empirical relationships between modified Mercalli intensity (MMI) and engineering ground acceleration (PGA) of the earthquakes were generated for the Iranian territory. MMI and PGA values were gathered from 16 large earthquakes. We derived two sets of relationships which predict MMI in terms of PGA; each developed using both horizontal and three components of accelerograms. The first set is independent of earthquake magnitude and epicentral distance. Better results were observed when magnitude and epicentral distance conditions were included into equations. They might be used for both rapid assessments of ground shaking and also mapping damage potential in Iran and neighboring area.  相似文献   
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In the post logging era, Sarawak is being restructured to make way for large‐scale oil palm plantations. In this restructuring, the vulnerabilities of particular areas are being used in a wider battle to control production, particularly for export. Native customary lands, considered ‘unproductive’ or ‘idle’ by officials, are the target of oil palm plantation development under a new land development programme called Konsep Baru (New Concept). This article looks at the contradictions generated by the complex process of laying claims to ‘idle’ native customary land and focuses on Dayak organizing initiatives in northern Sarawak, Malaysia.  相似文献   
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Based on the discourse analysis of the statements of the university student organizations in the period between 1996–2006, this paper will address the pros and cons of five approaches to politics in the post-reform movement era based on five discourses among university students in the past decade of Iranian politics and their consequences for reshaping the Iranian polity. This article first discusses five socio-political processes, i.e., Islamicization, social differentiation, limited political competition, transformation of Shi'ite authority, and personalization of power, which led to four social and political schisms in Iranian society; inequality; political, social, and cultural discrimination; and secular/Islamist tension. Referring to these schisms, political discourses shape the ideologies and actions of Iranian student movements. These discourses are social justice, tradition, totalitarianism, pluralism, and Islamic democracy. Even if these discourses were no more than intellectual pronouncements by the university students, they have been powerful enough to extend to the Iranian political society.  相似文献   
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Book reviews     
The Persian Land Reform, 1962–1966. By Ann K.S. Lambton. Oxford: Clarendon Press, 1969. xiii+386 pp. $11.75.  相似文献   
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A pollen diagram was prepared from Lake Almalou, a volcanic crater wetland located on the eastern flanks of the Sahand Volcanic Complex in NW Iran. The core provides a 3700-year record of human activity and environmental change in an upland region. We attempt to relate vegetation changes to both climatic change and historical events. Variations of anthropogenic pollen indicators suggest several phases of intensified human activities. Two strongly expressed agricultural phases are dated at about 2450–2220 cal BP (Achaemenid Empire) and 230–30 cal BP (collapse of Safavid Dynasty to the modern period). Historical rather than climatic events appear to be the main controlling factors for upland land-use dynamics. Fruticulture has been practiced in the region at least since the Iron Age, reaching its maximum importance 1500–1250 cal BP during the reign of Sassanid Empire; it declined by the time of Islamic conquest of Iran (651 AD). The Little Ice Age is tangibly recorded by higher lake water levels most probably due to both lower summer temperatures and higher annual precipitations. Low values of cereal-type and cultivated tree pollen during this period may indicate a change in the lifestyle from the cultivation of fields and orchards to a more nomadic life dominated by summer pasture. The modern period (1850 AD onwards) is characterized by expansion of agricultural activities to upland areas and intensified pastoralism.  相似文献   
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