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61.
Jennie Bradbury Douglas Davies Mandy Jay Graham Philip Charlotte Roberts Chris Scarre 《Journal of Archaeological Method and Theory》2016,23(2):561-591
There can be few “bigger” questions than the nature and development of human experience and self-awareness and few better ways to study it than through the changing treatment of the dead over time. Funded by the John Templeton Foundation, the ‘Invisible Dead’ project (Durham University) is exploring diachronic changes in mortuary practices across two regions: Britain and the Levant. In doing so, it uses archaeology as a way to approach fundamental questions about the human condition. This paper explores the principal difficulties faced during the construction of a database for this project and their wider relevance for the development of robust and successful methods for the study of large “mortuary” datasets in the future. It discusses the issues and biases identified within the mortuary record and how the project has sought to mitigate some of these. By adopting a flexible and ultimately expandable approach to data entry and analysis, value can be added to legacy datasets and “grey” literature, allowing us to make comparisons between regions which are both geographically and chronologically distinct. 相似文献
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Damage of nonstructural components during past seismic events was shown to be not only a critical threat to life safety in extreme cases but also led to substantial reduction of functionality of buildings and other facilities. Because of the complex construction of nonstructural and architectural components, current standards provide only limited guidance for the seismic design. Suspended ceiling systems are among the less understood important nonstructural/architectural components in buildings for which design standards provide limited guidance. To understand the dynamic behavior of suspended ceiling systems, a series of full scale shake table tests of 20 ft × 53 ft and 20 ft × 20 ft ceiling systems were conducted at the Structural Engineering and Earthquake Simulation laboratory (SEESL) at University at Buffalo (UB). For the full scale dynamic testing, a new test frame providing a continuous suspended ceiling area of 1,060 ft2 was constructed on the tandem shake tables and was equipped with an open-loop shake table compensation procedure. The combined designs of the physical frame and of the shake table motion controllers allowed simulating the required floor/roof motion according to ICC-ES AC156 standard at the roof of the test structure. Various test configurations were selected in order to determine the influence of different system conditions and the effects or efficiency of various protective systems required by the current standard ASTM E580 for seismic design. Based on the test data and the failure mechanisms observed, damage states are defined, and fragility curves are developed. The results of the fragility analysis show that a ceiling system becomes more vulnerable as (a) it is subjected to multi-directional input motions, (b) heavier tiles are installed, (c) the size of a ceiling area increases, and (d) lateral restraints are not installed. In addition, simplified numerical models that can capture the special behavior of ceiling systems are developed and presented in a companion paper. This paper presents the experimental study of large area suspended ceiling systems involving test setup and configurations, test motions generated by a unique control system, and basic lessons gained from the experiments. 相似文献
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Jay R. Carlander 《American Nineteenth Century History》2013,14(3):389-416
This article seeks to contextualize the political economists of the antebellum South. The article analyzes them both as members of a transatlantic set of economic thinkers and as southern defenders of slavery. As such, they paired a commitment to the fundamental precepts of classical economics with a defense of chattel slavery. Some historians have claimed that the simultaneous commitment of the southern political economists to political economy and slavery compromised both their social science and their defense of slavery. In contrast, this article finds that the southern political economists exploited the gaps and tensions in classical political economy on the topic of unfree labor to build a coherent and popular economic defense of slavery. Key to the defense was a view of planters as profit‐seeking capitalists and a racism that necessitated the control of black laborers. In the process of developing the defense, some of the southern political economists championed the prospect of industrializing the economy of the South with surplus slave labor. 相似文献
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Jay Sexton 《American Nineteenth Century History》2013,14(3):29-46
This essay examines the sympathies and actions of transatlantic financiers in Britain during the Civil War. Motivated largely by their financial and ideological connection to the Northern states, major Anglo‐American banks sympathized with the Union and campaigned to keep Britain out of the conflict. Unable to procure the support of Britain's leading banking houses, the Confederacy turned to lesser capitalists and speculators for financial assistance. By highlighting Britain's economic links to the Northern states and pointing to the potential dangers of meddling in the conflict, financiers in the City of London provided statesmen in the Westminster Parliament with a powerful justification for the policy of neutrality. 相似文献