Symmetrically reinforced bridge columns with a horizontal cantilever in one direction, called C-bent columns, tend to deform predominantly in the direction of applied moment when subject to strong earthquake shaking. For this reason, the strength in the direction of applied moment is generally increased in design. This article describes the use of inelastic dynamic time history analyses with a suite of ground motion records to quantify the amount of strength increase required to minimize likely peak and permanent displacement demands. It is shown that the strength should be increased by approximately 2.3 times the applied moment in design. 相似文献
This short paper is concerned with a map of central Japan that the later University of Chicago Professor of Geography, Chauncy Harris, drew in September 1944, when he was assigned as an US Army Private to work at the headquarters of the Research and Analysis Branch, Office of Strategic Services. The map provided a functional classification of Central Japanese cities, highlighting those that specialized in manufacturing. It was precisely these set of cities that were targeted for firebombing by the US Airforce from March 1945. 相似文献
This article explores whether the bi‐polar model of “elite” and “folk” or “popular religion” can be maintained for the medieval period. In fact, there were many strands to medieval religious culture, and people from a variety of backgrounds participated at a variety of levels on different occasions. Using a variety of chronicles and other sources, rather than the more dogmatic penitentials and canon law texts usually cited, this article argues that historians should make room for “local religious culture” in their taxonomies, in which both elites (including clerics) and people could participate. 相似文献
Explaining culture change requires a multi-dimensional approach, and so does explaining cultural continuity. I combine several approaches to explain why the account given of a Mexican town's history changed between 1879 and 1992. I also identify and explain what did not change during the period, as well as during the subsequent period of fieldwork itself, 1992–2005. Rather than treat cultural continuity as the result of inertia, I follow Urban ([2001], Metaculture: How Culture Moves Through the World, University of Minnesota Press, Minneapolis, MN) in looking for what motivates the transmission of culture as well as what pathways it takes, although I prefer to stress human agency in writing of the trajectories along which people propel culture, in this case a town's history. One approach which I draw, for explaining the trajectories of culture, is Malinowski's seminal study of Trobriand myths (1926), but I combine it with the more recent approaches that link versions of history to the interests of social groups; highlight the density of ties between person, people and place; pay attention to the genre of narratives being transmitted, and to the skewing of culture towards central places; and finally, consider shifts not just in the figure of particular narratives but in the grounds that underlie them, such as the criterion of truth against which narratives are measured. 相似文献
Computed tomography (CT) and traditional techniques were used to study the internal morphology of modern fruits of Pleiogynium timoriense (DC.) Leenh., and phosphatized and silicified fruits that were considered to belong to the genus. The results demonstrate that phosphatized fruits from the Oligocene–Miocene Dunsinane site at Riversleigh and silicified fruits from the Oligocene Glencoe Site, which are both in Queensland, are referable to Pleiogynium. The Riversleigh material (Pleiogynium wannanii Rozefelds, Dettmann & Clifford sp. nov.) is very similar to extant P. timoriense (DC.) Leenh. Both possess locules that, in the vertical axial plane, are asymmetrically reniform and enclosed by a two-layered endocarp, the inner layer woody and resistant to decay, the outer of fibres and parenchyma, surrounded by a mesocarp of fibres and sclereids and a parenchymatous exocarp. The outer mesocarp is sculpted by meridionally arranged, elongate depressions (germination apertures) situated at the dorsal surface of each locule; erosion of the mesocarp and outer endocarp provides passage for emergence of the embryo’s radicle on germination. The silicified material from Glencoe (P. parvum Rozefelds, Dettmann & Clifford sp. nov.) is smaller in all its parts and has locules that are ovate in the vertical axial plane. Discrete, cap-like, opercula are not evident in the fruit wall of the fossil and extant fruits studied. The presence of Pleiogynium, and associated taxa, indicates the existence of rainforest communities at Glencoe, and mixed open forest/rainforest at Riversleigh during Oligocene–Miocene times. The multilocular, fossil fruit described as Pleiogynium mitchellii Collinson, Manchester and Wilde from the Eocene deposits at Messel Quarry, Germany, is not considered to belong in the genus, as evidence of elongate depressions on the dorsal surface of the fruit stones has not been demonstrated conclusively, and its internal morphology/anatomy differs significantly from that of Pleiogynium. 相似文献
UNITED NATIONS. THE FIRST TWENTY YEARS. Clark M. Eichelberger. New York, Harper and Row, 1965. Pp. 176. $3.50.
THE INTERNATIONAL MONETARY FUND: LEGAL BASES, STRUCTURE, FUNCTIONS. Hans Aufricht. Published under the auspices of the London Institute of World Affairs. London, Stevens and Sons, 1964. Pp. 126. Australian price $4.55.
THE PRICE OF FREEDOM. B. A. Santamaria. Melbourne, Campion Press, 1964. Pp. 258. 35/‐d.
THE ANZUS TREATY ALLIANCE. J. G. Starke. Melbourne, Melbourne University Press, 1965. Pp. xiv + 314. $8.50 (Australian).
CAMBODIA'S FOREIGN POLICY. Roger M. Smith. Ithaca, Cornell University Press, 1965. Pp. x + 273. U.S.$5.75.
CONFLICT IN LAOS. THE POLITICS OF NEUTRALIZATION. Arthur J. Dommen. London, Pall Mall Press, 1965. Pp. xiv + 338. Australian price 63/6d.
THE LEFT‐WING MOVEMENT IN JAPAN, 1945–1964. Fukao Noda (ed.). Journal of Social and Political Ideas in Japan, Vol. III, No. I, April 1965. Tokyo, The Centre for Japanese Social and Political Studies. U.S.$2.00.
MOHAMMED, MARX AND MARHAEN. THE ROOTS OF INDONESIAN SOCIALISM. Jeanne S. Mintz. London, Pall Mall Press, 1965. Pp. 246. Australian price 66/‐d.
THE RISE OF POLITICAL ANTI‐SEMITISM IN GERMANY AND AUSTRIA. P. G. J. Pulzer. New dimensions in history: essays in comparative history. New York, Wiley, 1964.
BRITISH STRATEGY AND POLITICS, 1914–1918. Paul Guinn. London, Oxford University Press, 1965. Pp. xvi + 360. 8 maps and 14 illustrations. Australian price 67/6d.
THE POLITICS OF NAVAL SUPREMACY. The Wiles Lectures, 1963–4. G. S. Graham. London, Cambridge University Press, 1965. Pp. viii + 132. 2 maps. 30/‐d. stg.
THE UNITED STATES AND THE ITALO‐ETHIOPIAN CRISIS. Brice Harris, Jr. Stanford University Press, 1964. Pp. vi + 187, bibliographical essay. Australian price 75/6d. 相似文献