41,637 research outputs found

    A method to assess the application of additive manufacturing to inventory replenishment : a thesis presented in partial fulfilment of the requirements for the Master of Supply Chain Management at Massey University, Albany, New Zealand

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    Companies have historically struggled to deal with their stock, especially the long inventory tail. As most of the inventory management techniques that deal with slow-moving stock have proved to be rather inefficient, this research investigates the use of additive manufacturing to 3D print items on demand and therefore mitigate the inventory carrying and associated costs. This research has been applied to a Hydraulic Equipment Business in New Zealand, which was tested through an inequation that models the traditional manufacturing and 3D printing costs, yielding the ‘tipping point’ for the use of the 3D printing technology. Even though the results obtained herein were negative for this particular case regarding the use of additive manufacturing, this research has developed a methodology to assess the trade-off between traditional manufacturing and 3D printing and also provides insights into the characteristics of the inventory of the businesses that are most likely to benefit from the use of the technology

    Compact vortex in a generalized Born-Infeld model

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    We study vortexlike solutions in a generalized Born-Infeld model. The model is driven by two distinct parameters, one which deals with the Born-Infeld term, and the other, which controls the presence of high-order power term in the covariant derivative of the Higgs field. We numerically solve the equations of motion and depict the main vortex features, for several values of the two parameters of the model. The results indicate the presence of compact vortex, when the parameter responsible for the high-order power in the derivative increases to sufficiently large values.Comment: 6 pages, 6 figures; version to appear in PR

    Topological vortices in generalized Born-Infeld-Higgs electrodynamics

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    A consistent BPS formalism to study the existence of topological axially symmetric vortices in generalized versions of the Born-Infeld-Higgs electrodynamics is implemented. Such a generalization modifies the field dynamics via introduction of three non-negative functions depending only in the Higgs field, namely, G(ϕ)G(|\phi|), w(ϕ)w(|\phi|) and V(ϕ)V(|\phi|). A set of first-order differential equations is attained when these functions satisfy a constraint related to the Ampere law. Such a constraint allows to minimize the system energy in such way that it becomes proportional to the magnetic flux. Our results provides an enhancement of topological vortex solutions in Born-Infeld-Higgs electrodynamics. Finally, we analyze a set of models such that a generalized version of Maxwell-Higgs electrodynamics is recovered in a certain limit of the theory.Comment: 8 pages, 8 figures, to appear in EPJ

    AS TRANSFORMAÇÕES NO MERCADO DE TRABALHO E A INSERÇÃO FEMININA

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    Resumo O artigo tem como objeto central a apropriação do trabalho feminino pelo capitalismo na sociedade contemporânea. Sendo assim, visa discutir as transformações no mercado de trabalho, destacando as consequências para a classe trabalhadora, em especial no que diz respeito à mão de obra feminina. Para tanto, no primeiro momento, retrata as mudanças no mundo do trabalho a partir da reestruturação produtiva, para em seguida trazer o debate das divisões sexuais existentes ainda na atualidade

    Da campanha ao gabinete de prefeito

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    TCC (graduação) - Universidade Federal de Santa Catarina. Centro de Comunicação e Expressão. Jornalismo.Este Trabalho de Conclusão de Curso é uma grande reportagem em texto sobre as campanhas das eleições municipais, ocorridas durante o segundo semestre de 2012, em Florianópolis, SC. A reportagem tem como objetivo trazer perfis e matérias correlatas sobre os bastidores das campanhas: desde o cotidiano de um candidato e os conflitos entre eles até pesquisas de intenção de votos e prestação de contas
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