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排序方式: 共有181条查询结果,搜索用时 15 毫秒
81.
Gianna Giachi Chiara Capretti Ines D. Donato Nicola Macchioni Benedetto Pizzo 《Journal of archaeological science》2011
Some acetone-carried consolidants for waterlogged archaeological wood were tested in order to evaluate treatments able to save time and energy. In details, colophony (rosin), two esterified colophonies (Rosin 100® and Rosin 459®), a mixture of colophony with PEG 3400 and a vinyl acetate - vinyl versate copolymer (Vinavil 8020S®) were tested. The treatments were carried out at temperatures of 20 and 35 °C on waterlogged maritime pine, elm, oak and beech. The materials came from the archaeological site of the ancient ships of Pisa (Tuscany, Italy) and were dated back to VII cent. BC – II cent. AD. To evaluate the processes, equilibrium moisture content and dimensional stability of treated wood samples at different relative humidity, and retention of impregnating products were measured; moreover macroscopic and microscopic examination were also run to respectively assess the shape and appearance of treated wood and the way of deposition of consolidants. The results highlighted that natural and modified colophony treatments gave the most satisfactory results both in the maintenance of shape and dimensions of samples and in the stabilization with respect to RH variations. Moreover, the equilibrium moisture contents of samples treated with R100 and R459 were much reduced in comparison to the other consolidants and to untreated archaeological wood. This fact was related to the high retention values of those products that occluded most of the porosity including the microporosity of cell walls. Therefore, in terms of higroscopicity treated wood was more similar to impregnating substances rather than to decayed wood. This fact was considered helpful in contrasting the moisture-related negative effects in cases of eventual faults in the climate control during e.g. exhibition and in protecting treated wood from the risks of new fungal attacks. 相似文献
82.
Iacono Francesco Borgna Elisabetta Cattani Maurizio Cavazzuti Claudio Dawson Helen Galanakis Yannis Gori Maja Iaia Cristiano Ialongo Nicola Lachenal Thibault Lorrio Alberto Micó Rafael Molloy Barry Nafplioti Argyro Peche-Quilichini Kewin Herrada Cristina Rihuete Risch Roberto 《Journal of Archaeological Research》2022,30(3):371-445
Journal of Archaeological Research - The Late Bronze Age (1700–900 BC) represents an extremely dynamic period for Mediterranean Europe. Here, we provide a comparative survey of the... 相似文献
83.
Barry Cooper 《Perspectives on Political Science》2013,42(3):189-193
ABSTRACTThe Collected Works of Eric Voegelin, one of the great political scientists of the twentieth century, run to 34 volumes. The selection republished in this Reader will provide senior undergraduates and graduate students (and perhaps their teachers) with a wide-ranging introduction to Voegelin's modern but Aristotelean political science. The selection includes excerpts from his Autobiographical Reflections and from his best-known work, The New Science of Politics. There are several examples of his late an alytical essays. Readers unfamiliar with his relationship to Christianity, always a contentious issue, will find his discussions of the relationship of philosophical or noetic symbols and experiences to revelatory of pneumatic ones especially helpful. The editors and the University of Missouri Press have performed a major service to contemporary political science by making this se lection available. 相似文献
84.
Miss Ivy M. Cooper 《英国考古学会志》2013,166(1):97-138
AbstractThe importation into England of church furnishings of most kinds has been going on since the early Middle Ages. The focus of this study is on wooden furnishings and the early 19th century, when a specific group of patrons scoured mainly France and the Low Countries for the furniture that had been prised from churches, as a direct and indirect result of the French Revolution. The taste for such material was fuelled by a Romantic enthusiasm, although ironically much of it was in the Baroque style. The historical setting for this nostalgic explosion in interest is briefly sketched, as well as an account of its development into the early 20th century. 相似文献
85.
Eugene Cooper 《Reviews in Anthropology》2013,42(1-4):175-181
Afshar, Haleh, ed. Women, Work, and Ideology in the Third World. New York: Tavistock Publications, 1985. xvii + 265 pp. including indices and chapter notes and references. $15.95 cloth. Larwood, Laurie, Ann H. Stromberg, and Barbara A. Gutek, eds. Women and Work: An Annual Review, Vol. 1. Beverly Hills: Sage Publications, 1985. 312 pp. including chapter references. $29.95 cloth. Long, Norman, ed. Family and Work in Rural Societies: Perspectives on Non‐wage Labour. New York: Tavistock Publications, 1984. viii + 222 pp. including references and indices. $33.00 cloth; $13.95 paper. 相似文献
86.
Deodato Tapete Nicola Casagli Guido Luzi Riccardo Fanti Giovanni Gigli Davide Leva 《Journal of archaeological science》2013
Ground-Based Synthetic Aperture Radar Interferometry (GBInSAR) and Terrestrial Laser Scanning (TLS) were purposely integrated to obtain 3D interferometric radar point clouds to facilitate the spatial interpretation of displacements affecting archaeological monuments. The paper describes the procedure to implement this integrated approach in the real-world situations of surveillance of archaeological and built heritage. Targeted tests were carried out on the case study of the Domus Tiberiana sited along the northern side of the Palatino Hill in the central archaeological area of Rome, Italy, and displacements of the monument were monitored over almost one year of acquisition. The GBInSAR – TLS integration provided updated information about the condition of the archaeological structures in relation to their history of instability mechanisms, and did not highlighted a general worsening for the stability of the entire monument. Point-wise and prompt detection of displacement anomalies and/or sudden changes in displacement trends proved the suitability of the method to support early warning procedures, also to evaluate effects on the masonry due to human activities. 相似文献
87.
Neil Cooper 《Development and change》2002,33(5):935-955
This article examines the role played by conflict trade in the process of state collapse. Conflict trade is defined here as the trade in non–military goods such as diamonds, timber and drugs that finances war. Such trade includes both the export and import of goods to a war zone as well as extra–territorial trade undertaken by supporters of a warring faction. It is argued that the decline of superpower military aid coupled with the broader effects of centre–periphery exploitation mediated through a neo–liberal and western imposed version of globalization has meant such trade has a particular salience both in contemporary conflict and the process of state collapse. Equally, though, the reliance of warring factions on conflict trade means they are also susceptible to changes in the market for their goods, creating a vulnerability that can (and to some extent has been) exploited to promote peace. The emerging control agenda on conflict trade is currently characterized by a number of problems — most notably, the risk that the control of conflict trade might become a substitute for action on arms exports; that international action has largely been undertaken within an inappropriate statist paradigm; that control has sometimes taken second place to economic or strategic interests and that policy has become hostage to a ‘drugs and thugs’ agenda which risks undermining its effectiveness. 相似文献
88.
Nicola J. Ross 《Children's Geographies》2007,5(4):373-391
This paper gives prominence to children's own accounts of school journeys. The characteristics of school journeys in Fife, Scotland are outlined, and the nature of children's school journey experiences discussed. The focus is on children in the latter years of primary school, concentrating mainly on the experiences of those who walk without adult accompaniment on their school journeys. By drawing attention to the meaning of these journeys to children this paper brings to the fore children's active and imaginative engagements in and with their environments. This situates school journeys as an integral part of children's geographies indicative of the regulation of the child's realm and the active part which children play in redefining this. 相似文献
89.
The capability of satellite QuickBird imagery for the identification of archaeological crop marks is herein presented and discussed for two test sites located in the South of Italy. The selected sites, dating back to Middle Ages, were buried under surfaces covered by herbaceous plants characterized by a different phenological status (dry/green) when the satellite data were acquired. 相似文献
90.
This paper examines some of the issues that arise out of partnerships between universities and regions. It draws upon the experience of Flinders University in working with a range of regional agents in responding to the closure of the Mitsubishi Motors Australia Limited (MMAL) plant at Lonsdale in Adelaide's southern suburbs. The paper suggests that there are a number of hurdles to the establishment of effective partnerships that include: the perception that universities behave in ways that are different to either public or private sector organizations; the absence of universities from the networks and communication protocols central to the work of economic development practitioners; the sporadic nature of university engagement with regional issues; and, the gap between university funding models and local economic aspirations. The paper also finds that government-established mechanisms for regional development may be flawed, especially if they are dominated by representatives of the public sector. The research concludes that current policy preoccupations with the development of commercially valuable intellectual property results in a heavy discounting of other economic impacts. Finally, the paper argues that a pathway for effective engagement between universities and their regions can be established, but such initiatives require considerable time, patience and understanding on the part of all parties. Periods of regional economic stress may not be the most appropriate periods for establishing these working relationships. 相似文献