187,219 research outputs found

    Anheuser-Busch: A System-Wide Resource Conservation Program

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    Anheuser-Busch has been an EPA Climate Wise Program partner since 1997. Through the company's participation in the program-a voluntary industrial energy efficiency initiative in which companies work to turn energy efficiency and environmental performance into a corporate asset-Anheuser-Busch has implemented a comprehensive set of energy efficiency improvements and waste reduction projects. In November of 1998, Anheuser-Busch received the Climate Wise Partner Achievement Award for its excellence in the areas of Leadership, Innovation, Action Planning and Results. This paper provides an overview of Anheuser-Busch's broad-based efforts in energy efficiency and pollution prevention

    Introduzione a La malattia tra sintomo e simbolo. Racconti immagini e luoghi di cura nella letteratura tedesca

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    Il testo introduce al volume mettendo in evidenza il significato che assume la malattia in alcune opere rappresentative della letteratura tedesca tra il '700 e oggi

    Academic Capitalism and Regional Planning: A Review of Shadows of a Sunbelt City

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    Andrew M. Busch reviews Eliot M. Tretter's Shadows of a Sunbelt City: The Environment, Racism, and the Knowledge Economy in Austin (Athens: University of Georgia Press, 2016)

    Nimbapanchax Sonnenberg & Busch 2009

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    NIMBAPANCHAX SONNENBERG & BUSCH, 2009 Nimbapanchax Sonnenberg & Busch, 2009: 8–9 (type species: Nimbapanchax leucopterygius Sonnenberg & Busch, 2009; type by original designation). Diagnosis Distinguished from other callopanchacines by one synapomorphy: second vertebra with a fan-shaped neural process (49.1; Fig. 5A), versus rectangular (Fig. 5B). Included taxa Five species, according to Sonnenberg & Busch, 2009: Nimbapanchax jeanpoli (Berkenkamp & Etzel, 1979); Nimbapanchax leucopterygius Sonnenberg & Busch, 2009; Nimbapanchax melanopterygius Sonnenberg & Busch, 2009; Nimbapanchax petersi (Sauvage, 1882); and Nimbapanchax viride (Ladiges & Roloff, 1973).Published as part of Costa, Wilson J. E. M., 2015, Comparative morphology, phylogeny, and classification of West African callopanchacine killifishes (Teleostei: Cyprinodontiformes: Nothobranchiidae), pp. 134-149 in Zoological Journal of the Linnean Society 175 (1) on page 138, DOI: 10.1111/zoj.12270, http://zenodo.org/record/625538

    Chain-length dependence of free-radical termination rate deduced from laser single-pulse experiments

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    Termination rate coefficients of free-radical polymerization are accessible from SP-PLP studies where monomer conversion induced by a laser single pulse is measured with a time resolution of microseconds. Previous experiments with 2,2-dimethoxy-2-phenylacetophenone (DMPA) acting as the initiator revealed that upon variation of the DMPA concentration, the resulting monomer conversion vs. time traces intersect. A detailed kinetic analysis of this unexpected type of behavior is presented. It turns out that such crossings occur in situations Where k(t) is chain-length dependent and, at the same time. the primary initiator-derived free-radical species differ in reactivity toward the monomer. As is known from the literature, this difference in radical reactivity is particularly pronounced with DMPA, which photo-decomposes to a propagating and to a non-propagating free radical. Modeling of the crossing behavior opens a novel route for determining chain-length dependent k(t). Results for methyl acrylate (MA) and styrene homopolymerizations at low degrees of monomer conversion, to a maximum of are presented. The decrease of k(t) with chain length is modeled via an exponential function. The dependence is significantly larger for styrene. The exponents derived from simulation studies via PREDICI® are in excellent agreement with corresponding data reported by Olaj et al. for styrene and by de Kock for methyl acrylate

    Simulation as a Tool for Feasibility Studies about PIP-SEC Experiments

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    Advanced homo- and copolymerization models have been used to perform a feasibility study on the potential of pulse-initiated polymerization (PIP) experiments for ethene (co)polymerizations. An application of PIP experiments directly to the ethene homo-polymerization appears not as a very promising strategy to derive the homo-propagation rate coefficient k(p) of ethene. This failure can be attributed to the special characteristics of high temperature size exclusion chromatographs, being required to determine the molecular weight distribution (MWD) of polyethylene. PI copolymerizations appear as an interesting alternative to provide access to the homo-propagation rate coefficient of ethene. Most advantageous in this strategy is the fact that even a simple convergence contemplation (using a variation in monomer composition) yields the ethene home-propagation rate coefficient k(p). Simply aiming at this coefficient, there is no necessity of knowing the detailed kinetic parameters of the copolymerization. In a further part, the extended kinetic information being available about branching processes in ethene polymerizations was used to test for the potential influence of a slower propagation rate of secondary macroradicals on the PIP structure in MWDs. Even at the significant level of branching present in ethene homopolymerizations still a PLP structure inside the MWD remains observable, assuming retardation up to an extend of almost two orders of magnitude. In order to perform these studies a kinetic model was designed explicitly accounting for the formation of secondary macroradicals by transfer. The kinetic; information about branching being available in literature, was adopted toward this scheme

    Simulation of thermal plant optimization and hydraulic aspects of thermal distribution loops for large campuses

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    Following an introduction, the author describes Texas A&M University and its utilities system. After that, the author presents how to construct simulation models for chilled water and heating hot water distribution systems. The simulation model was used in a $2.3 million Ross Street chilled water pipe replacement project at Texas A&M University. A second project conducted at the University of Texas at San Antonio was used as an example to demonstrate how to identify and design an optimal distribution system by using a simulation model. The author found that the minor losses of these closed loop thermal distribution systems are significantly higher than potable water distribution systems. In the second part of the report, the author presents the latest development of software called the Plant Optimization Program, which can simulate cogeneration plant operation, estimate its operation cost and provide optimized operation suggestions. The author also developed detailed simulation models for a gas turbine and heat recovery steam generator and identified significant potential savings. Finally, the author also used a steam turbine as an example to present a multi-regression method on constructing simulation models by using basic statistics and optimization algorithms. This report presents a survey of the author??s working experience at the Energy Systems Laboratory (ESL) at Texas A&M University during the period of January 2002 through March 2004. The purpose of the above work was to allow the author to become familiar with the practice of engineering. The result is that the author knows how to complete a project from start to finish and understands how both technical and nontechnical aspects of a project need to be considered in order to ensure a quality deliverable and bring a project to successful completion. This report concludes that the objectives of the internship were successfully accomplished and that the requirements for the degree of Degree of Engineering have been satisfied

    Crossing Over: Sustainability, New Urbanism, and Gentrification in Austin, Texas

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    In this essay, Andrew M. Busch discusses the histories of segregation and gentrification in Austin, Texas's Eastside and examines the rise of New Urbanism in the development of the Eastside's Eleventh Street corridor. Busch ends with a call for spatial justice in which Austin's community development would be more inclusive
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