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Carl Gombrich 《Interdisciplinary science reviews : ISR》2019,44(3-4):342-360
ABSTRACTThis article explores two ideas due to Alan Wilson: superconcepts and enabling disciplines. These ideas emerge from Wilson’s philosophy of knowledge and, in particular, from his thinking on interdisciplinarity. Both ideas are described, analysed and developed in the context of their wider importance in interdisciplinary undergraduate education and their implementation on the Arts and Sciences BASc at UCL. Some suggestions for future developments of these ideas at the proposed new university at the London Interdisciplinary School are offered. 相似文献
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Carl E. Beigie 《The American review of Canadian studies》2013,43(2-3):287-293
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Marie D. Jackson John M. Logan Barry E. Scheetz Daniel M. Deocampo Carl G. Cawood Fabrizio Marra Massimo Vitti Lucrezia Ungaro 《Journal of archaeological science》2009,36(11):2481-2492
The Grande Aula, or Great Hall, of the Markets of Trajan (AD 96 to 115) is an intact example of the domed, concrete architecture of imperial Rome. Petrographic, x-ray diffraction, chemical, and SEM analyses demonstrate that wall mortars contain Pozzolane Rosse volcanic ash aggregate (harenae fossiciae) and strätlingite, a complex calcium aluminate cement hydrate (C2 ASH8) that gives modern cements good durability and compressive strength. Specific gravity tests and a new petrographic method for assessing bulk densities indicate unit weights of about 1750 kg/m3 for the wall mortars and 1430–1640 kg/m3 for the pumice bearing, vaulted ceiling mortars. Innovative point load source tests record the tensile strengths (ft) of the aggregate and interfacial elements of the conglomeratic concrete fabric. These suggest ft of about 2.7 MPa for brick, 1.2 MPa for Tufo Lionato tuff, and 0.9 MPa for Tufo Giallo della Via Tiberina tuff coarse aggregate (caementa), based on a tentative, approximate correlation with splitting (Brazilian) tests. The pozzolanic mortar and interfacial zones have lower ft in the range of 0.8 MPa to 0.5 MPa. The relatively low mortar strength and its somewhat tenuous adhesion to the coarse aggregate suggests that the caementa may have arrested the propagation of tensile microcracks that formed in the mortar, thereby increasing the composite tensile strength of the concrete. Roman builders selected the complex aggregate mixes to optimize the performance of the wall and vault concretes. 相似文献
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