12,854 research outputs found

    Thermal and oxidative degradation of aromatic and heterocyclic polymers Progress report, 1 Aug. 1968 - 1 Feb. 1969

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    Thermal and oxydative decomposition of aromatic and heterocyclic polymer

    Thermal and oxidative degradation of aromatic and heterocyclic polymers Progress report, May 1, 1966 - Aug. 1, 1967

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    Thermogravimetric measurements on high temperature polycarbonate pyrolytic product

    Polymer decomposition initiated by high energy radiation Progress report, Nov. 1965 - May 1966

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    Polymer decomposition initiated by high energy radiatio

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    Contemporary debates on the transformation of building methods, the structure of the building industry, and the introduction of new technologies (informational, material and structural) in professional literature and in the architectural humanities tend to ignore the realities of work on construction sites. This follows a long history of failure to recognise the importance of workers’ experience and knowledge of building as a process by the key professions in the industry. The absence of the working process in accounts of historical development is exacerbated by abstract reflection on building know-how, categories of expertise, and the structure of the industry, when these are not supported by direct observation and engagement with building work and workers. Key assumptions about the relation between structural and technological changes in the industry and the knowledge, skills, composition, and requirements of the workforce can be challenged by paying attention to day-to-day activities and conditions of site work

    Thermogravimetric instrument

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    Thermogravimetric instrument to measure volatility under both isothermal and nonisothermal conditions and to study thermal decompositio

    Closed circuit TV system automatically guides welding arc

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    Closed circuit television /CCTV/ system automatically guides a welding torch to position the welding arc accurately along weld seams. Digital counting and logic techniques incorporated in the control circuitry, ensure performance reliability

    Automatic closed circuit television arc guidance control Patent

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    Automatic closed circuit television arc guidance control for welding joint
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