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  • Chemistry  (79,720)
  • Polymer and Materials Science  (27,849)
  • Engineering  (3,323)
  • Computational Chemistry and Molecular Modeling  (2,365)
  • FLUID MECHANICS AND HEAT TRANSFER
  • Wiley-Blackwell  (85,404)
  • CLACSO  (4)
  • 2020-2024  (4)
  • 1990-1994  (56,509)
  • 1960-1964  (20,531)
  • 1945-1949  (3,659)
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  • 1
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    Unknown
    CLACSO
    Publication Date: 2024-04-14
    Description: Description not available.
    Keywords: Technology ; Engineering ; Political Science ; thema EDItEUR::U Computing and Information Technology::UB Information technology: general topics::UBW Internet: general works ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TJ Electronics and communications engineering::TJF Electronics engineering ; thema EDItEUR::J Society and Social Sciences::JP Politics and government::JPH Political structure and processes::JPHV Political structures: democracy
    Language: Spanish
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  • 2
    Publication Date: 2024-04-11
    Description: Este libro indaga desde múltiples preguntas y perspectivas las transformaciones provocadas por el incremento descomunal del flujo de información generada por el uso masivo e intensivo de las tecnologías digitales. El estudio de las apropiaciones por parte de la sociedad configura un mosaico desigual y combinado de usos y empleos de las tecnologías digitales. ¿Cómo han impactado en los grupos sociales, económicos y generacionales los usos de las tecnologías? ¿Que desafíos entrañan y que problemas nuevos generan las herramientas cotidianas a través de las cuales conocemos y nos comunicamos con nuestro entorno y el mundo?
    Keywords: Engineering ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TJ Electronics and communications engineering::TJF Electronics engineering
    Language: Spanish
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  • 3
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    CLACSO
    Publication Date: 2024-03-30
    Description: Gustavo Lins Riberio conjuga y tensiona la teoría con el trabajo de campo para desentrañar los significados que atribuyen los trabajadores a la construcción de Brasilia. Ello le permitirá reconstruir una memoria donde caben las penurias, los enojos, las broncas, las injusticias laborales, las solidaridades, las amistades, la familia, las lealtades, los sabores de las comidas, la música, la organización, el sindicato y los conflictos, en un todo desordenado pero legible a luz de la teoría. En definitiva, la experiencia de clase se puede leer en El capital de la esperanza de modo transversal, así como también las contradicciones del capitalismo, las políticas urbanistas, las condiciones de trabajo y demás campos problemáticos que han abordado las ciencias sociales. Las y los invitamos a leer —por primera vez o una vez más— esta obra magistral que nos permite comprender y complejizar la dinámica de la expansión capitalista.
    Keywords: Labor & Employment Relations ; Engineering ; History ; Latin American Studies ; thema EDItEUR::K Economics, Finance, Business and Management::KC Economics::KCF Labour / income economics ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TN Civil engineering, surveying and building::TNK Building construction and materials ; thema EDItEUR::N History and Archaeology::NH History::NHK History of the Americas
    Language: Spanish
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  • 4
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    CLACSO
    Publication Date: 2023-10-05
    Description: En junio del 2014 la comunidad Kukama de Cuninico, fue afectada por el derrame de 2500 barriles de petróleo. Como muchas otras comunidades nativas en la Amazonia, Cuninico está enfrascada en un contexto postdesastre agudizado por la ineficiencia estatal. Las dinámicas intrafamiliares y comunitarias, así como las expectativas a futuro de los que allí viven, han cambiado profundamente. En este contexto son las mujeres las que deben asumir más responsabilidades para enfrentar la crisis.
    Keywords: Environmental Science ; Sustainability ; Engineering ; bic Book Industry Communication::R Earth sciences, geography, environment, planning::RN The environment::RNK Conservation of the environment ; bic Book Industry Communication::T Technology, engineering, agriculture::TH Energy technology & engineering::THF Fossil fuel technologies::THFP Petroleum technology
    Language: Spanish
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  • 5
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Angewandte Makromolekulare Chemie 175 (1990), S. 107-116 
    ISSN: 0003-3146
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Zur Beschreibung der Polymerisationsgeschwindigkeit der radikalischen Fallungspolymerisation von Acrylsäure in Toluol wurde ein Modell entewickelt. Die experimentelle Überprüfung des Modells erfolgte durch Messungen in einem isotherm betriebenen Reaktionskalorimeter. Das Modell beschreibt die Polymerisationsgeschwindigkeit bis zum vollständigen Umsatz in einem Temperaturbereich von 40 bis 60°C.
    Notes: A kinetic model for the free-radical precipitation polymerization of acrylic acid in toluene was developed and verified experimentally by using an isothermal reaction calorimeter. The model predicts the rate of polymerization accurately up to complete conversion in the temperature range of 40 to 60°C.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Angewandte Makromolekulare Chemie 175 (1990), S. 157-168 
    ISSN: 0003-3146
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Es wird über Untersuchungen an Legierungen aus isotaktischem Polypropylen und EPDM-Elastomer berichtet, die mit hochenergetischen Elektronen bestrahlt worden waren. Die Mischungsverhältnisse in den Proben überstrichen sowohl den für elastomermodifizierte Thermoplaste typischen Bereich als auch den der thermoplasticschen Elastomeren. Eine Vernetzung der Komponenten über die Grenzfläche hinweg wurde nachgewiesen. Diese grenzflächenübergreifende Vernetzung bewirkte eine merkliche Verbesserung der mechanischen Eigenschaften insbesondere des thermoplastischen Elastomeren.
    Notes: Blends of isotactic polypropylene and EPDM rubber have been treated by electron irradiation in the composition range of rubber modification and in the thermoplastic rubber composition range as well. Mutual crosslinking of the components through the interface could be detected. This intercrosslinking caused a remarkable improvement of the mechanical properties particularly of the thermoplastic rubber.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Angewandte Makromolekulare Chemie 175 (1990), S. 205-205 
    ISSN: 0003-3146
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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  • 8
    ISSN: 0003-3146
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: The mechanisms of photooxidation usually envisaged, are perfected by taking into account photoreactions of peroxy radicals. They involve interaction of a peroxy radical with the polymer to yield a hydroperoxy radical and a pair of macroradicals. After peroxidation, this pair will usually undergo bimolecular termination. The influence of such a reaction on photooxidation kinetics is particularly important for polyethylene. Then, chain termination occurs mainly by interaction of two hydroperoxy radicals or of a hydroperoxy radical with a macroperoxy radical. The reaction does not only affect kinetics of photooxidation but also the nature of the photooxidation products. The latter is more important for polypropylene than for polyethylene.
    Type of Medium: Electronic Resource
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  • 9
    ISSN: 0003-3146
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Isothermal Differential Thermal Analysis was used to test the thermooxidative stability of pipes of polybutene during internal pressure tests at 110°C. At low hoop stresses and long testing times pipe failure was exclusively caused by thermooxidative degradation of the polymer.The stabilizer distribution in the initial state and its alteration during the pressure tests could easily be measured by isothermal DTA. Leaching of antioxidants from pipe walls could be detected. The decrease of residual thermooxidative stability was degressive.Degradation of pipe material started from the exterior pipe wall. Molecular weight of polybutene decreased rapidly after stabilizer exhaustion which could be observed by isothermal DTA.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
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  • 10
    ISSN: 0003-3146
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: A base of experimental data on the ageing of commerial grade plastics is created. In includes assorted physical and chemical properties of plastics and their changes at natural ageing. An automated system for storing and processing of the experimental data is designed. Processing involves mathematical modeling of the changes in properties that aids in empirical prediction. The possibilities of the system are verified with experimental results from a 5-year ageing period of PE-LD and PE-HD. The results show a good agreement between the predicted and real data for selected models.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
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