992 resultados para Brougham and Vaux, Henry Brougham, Baron, 1778-1868
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"Chronological catalogue of the works of William Hazlitt": v.1, p. [xxii]-xxxii.
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The distribution of finished products from depots to customers is a practical and challenging problem in logistics management. Better routing and scheduling decisions can result in higher level of customer satisfaction because more customers can be served in a shorter time. The distribution problem is generally formulated as the vehicle routing problem (VRP). Nevertheless, there is a rigid assumption that there is only one depot. In cases, for instance, where a logistics company has more than one depot, the VRP is not suitable. To resolve this limitation, this paper focuses on the VRP with multiple depots, or multi-depot VRP (MDVRP). The MDVRP is NP-hard, which means that an efficient algorithm for solving the problem to optimality is unavailable. To deal with the problem efficiently, two hybrid genetic algorithms (HGAs) are developed in this paper. The major difference between the HGAs is that the initial solutions are generated randomly in HGA1. The Clarke and Wright saving method and the nearest neighbor heuristic are incorporated into HGA2 for the initialization procedure. A computational study is carried out to compare the algorithms with different problem sizes. It is proved that the performance of HGA2 is superior to that of HGA1 in terms of the total delivery time.
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In this paper, we focus on the rationales for the recruitment of international students to universities in South Africa. Through the use of in-depth interviews with international officers at a cross-section of South African universities, we argue that there are competing and complementary rationales for the recruitment of international students. Some South African universities follow international trends in terms of international student recruitment while others adopt a different approach. The analysis locates the rationales of international student recruitment as part of an internationalisation process within the context of globalisation. Dans cet article, nous nous focalisons sur les raisons derrière le recrutement des étudiants internationaux dans les universités de l'Afrique du Sud. Basé sur des interviews approfondies que nous avons menées avec les agents internationaux mandatés par les universités en Afrique du Sud, nous soutenons qu'il existe des raisons d'ordre compétitif et complémentaire qui expliquent le recrutement d'étudiants internationaux. Certaines universités sud africaines suivent la tendance de tels recrutement alors que d'autres adoptent une approche différente. Cette analyse identifie les raison du recrutement des étudiants internationaux dans le cadre du processus d'internationalisation dans le contexte de la globalisation.
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This article provides an account of undergraduate sociology students conducting indepth interviews with international students from Hong Kong. The research is locating in a broader project of identifying rationales for the recruitment of international students. One of the shortcomings of previous research was that the student voice and rationale were missing. We have addressed this by involving undergraduate researchers in the collection and analysis of data. This project report draws on one of the reflections of the student researcher.
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The paper presents the simulation of the pyrolysis vapors condensation process using an Eulerian approach. The condensable volatiles produced by the fast pyrolysis of biomass in a 100 g/h bubbling fluidized bed reactor are condensed in a water cooled condenser. The vapors enter the condenser at 500 °C, and the water temperature is 15 °C. The properties of the vapor phase are calculated according to the mole fraction of its individual compounds. The saturated vapor pressure is calculated for the vapor mixture using a corresponding states correlation and assuming that the mixture of the condensable compounds behave as a pure fluid. Fluent 6.3 has been used as the simulation platform, while the condensation model has been incorporated to the main code using an external user defined function. © 2011 American Chemical Society.
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This paper reports on the use of non-symbolic fragmentation of data for securing communications. Non-symbolic fragmentation, or NSF, relies on breaking up data into non-symbolic fragments, which are (usually irregularly-sized) chunks whose boundaries do not necessarily coincide with the boundaries of the symbols making up the data. For example, ASCII data is broken up into fragments which may include 8-bit fragments but also include many other sized fragments. Fragments are then separated with a form of path diversity. The secrecy of the transmission relies on the secrecy of one or more of a number of things: the ordering of the fragments, the sizes of the fragments, and the use of path diversity. Once NSF is in place, it can help secure many forms of communication, and is useful for exchanging sensitive information, and for commercial transactions. A sample implementation is described with an evaluation of the technology.
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Mode of access: Internet.
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The titles of parts 2 and 3 differ somewhat from that of part 1; the cover has the half-title:- "New Sanctuary of Progressive Thought and Science".
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Mode of access: Internet.
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Mode of access: Internet.
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v 3 (1831)
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v 2 (1831)
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v 1 (1831)