781 resultados para Soil sciences|Civil engineering|Environmental science|Environmental engineering
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List of members in each vol.
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Mode of access: Internet.
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Pt. 2 of v. 31 never published.
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Description based on: Vol. 19, no. 3 (fall/winter 1979); title from cover.
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Title varies slightly.
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Mode of access: Internet.
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Mode of access: Internet.
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Includes index.
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Vol. for 1844 issued without title.
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The miscellancous papers of John Smeaton... Comprising his communications to the Royal society, printed in the philosophical transactions, forming a fourth volume to his Reports... London, Printed for Longman, Hurst, Rees, Orme, and Brown, 1814. viii, 203 p. 14 pl. 34 cm.
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Description based on: 1986, v. 2; title from cover.
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Mode of access: Internet.
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Thesis (Master's)--University of Washington, 2016-06
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Due to the existence of global modes and local modes of the neighbouring members, damage detection on a structure is more challenging than damage on isolated beams. Detection of an artificial circumferential crack on a joint in a frame-like welded structure is studied in this paper using coupled response measurements. Similarity to real engineering structures is maintained in the fabrication of the test frame. Both the chords and the branch members have hollow sections and the branch members have smaller sizes. The crack is created by a hacksaw on a joint where a branch meets the chord. The methodology is first demonstrated on a single hollow section beam. The test results are then presented for the damaged and undamaged frame. The existence of the damage is clearly observable from the experimental results. It is suggested that this approach offers the-potential to detect damage in welded structures such as cranes, mining equipment, steel-frame bridges, naval and offshore structures. (C) 2003 Elsevier Ltd. All rights reserved.
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The design of liquid-retaining structures involves many decisions to be made by the designer based on rules of thumb, heuristics, judgement, codes of practice and previous experience. Structural design problems are often ill structured and there is a need to develop programming environments that can incorporate engineering judgement along with algorithmic tools. Recent developments in artificial intelligence have made it possible to develop an expert system that can provide expert advice to the user in the selection of design criteria and design parameters. This paper introduces the development of an expert system in the design of liquid-retaining structures using blackboard architecture. An expert system shell, Visual Rule Studio, is employed to facilitate the development of this prototype system. It is a coupled system combining symbolic processing with traditional numerical processing. The expert system developed is based on British Standards Code of Practice BS8007. Explanations are made to assist inexperienced designers or civil engineering students to learn how to design liquid-retaining structures effectively and sustainably in their design practices. The use of this expert system in disseminating heuristic knowledge and experience to practitioners and engineering students is discussed.