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231.
略论傅作霖在华之工作 总被引:1,自引:0,他引:1
本文研究葡萄牙传教士傅作霖入华进京的背景、在华期间的活动情况和科学工作,特别指出傅作霖长期参与和主持钦天监的日常工作,参与天文仪器制作,乾隆时期还参与了大地测量工作,对中西科学交流做出了贡献。 相似文献
232.
Over the last decade analysis of the HMS Pomone wreck scattered below the Needles has aimed to correlate artefact positions with their terrain and aid research into the distribution process of the wreck-site. However, physical limitations faced by divers on the site have restricted progress. The search for a solution to the difficulties of archaeological surveying was resolved by the Submetrix ISIS 100 system when a bathymetric survey of the wreck-site was performed in a single day. It has provided a contoured terrain model that can aid further investigations and help plans for the future management of the site. 相似文献
233.
Kultigin Demirlioglu Serdar Soyoz Maria Pina Limongelli 《International Journal of Architectural Heritage》2020,14(2):238-256
ABSTRACTThis article aims at contributing to the seismic performance assessment of a historic brick masonry building by finding a strength reduction coefficient through the use of linear and nonlinear modeling approaches, using Finite Element Method and Equivalent Frame modeling. To reduce the uncertainties, ambient vibration tests (AVT) were implemented. Series of simulations was performed using nonlinear dynamic analyses and incremental dynamic analysis curves were compared with the pushover curves. Results indicate that the mass-proportional pushover curve meets the mean of results obtained from IDA and the strength reduction coefficient falls into the range given in EN 1998–1 for unreinforced masonry. 相似文献
234.
Stig Svenningsen 《Imago Mundi: The International Journal for the History of Cartography》2016,68(2):196-211
The focus in this article is on the way the post eighteenth-century cartographic turn in military practices developed into a particular military perception of landscape that continues to set the standard of Danish topographical mapping. My argument is that the development of modern topographical maps is the result of a long process of military comprehension and measurement of the terrain in order to conduct field operations. The demand for spatial data for actual or potential military operations had a direct impact on the specifications of maps produced by the military, as landscape representation was adapted to meet operational demands and as lessons learned from war experience were incorporated. In this and other respects, the development of Danish topographical maps in and after the nineteenth century followed the general trend of European military mapping as regards methods and standards. 相似文献