Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 28 for “"Exchange networks"”.
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Hybrid synthesis method for mass exchange networks
Process synthesis can be approached from three techniques: heuristics, physical and thermodynamic insight, and mathematical programming. Hybrid methods where two or all of the synthesis methods are combined are now becoming used, taking advantage of the combined strength of the individual …
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Performance analysis of augmented shuffle exchange networks
… of fault tolerant multistage interconnection networks. In the network discussed here, fault tolerance is achieved by providing multiple redundant paths between the source and destination. The extra paths are obtained by providing redundant links between switching elements within a stave …
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Kindred and Exchange Networks in a Black Community
Made available in DSpace on 2014-12-10T23:54:56Z (GMT). No. of bitstreams: 1 7317436.pdf: 9693745 bytes, checksum: 8068a281bd538e9f38f530ee235d1784 (MD5) Previous issue date: 1972
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Interval based MINLP superstructure synthesis of heat and mass exchange networks
… a new technique for synthesizing heat and mass exchange networks. The method involves generating superstructures using the temperature/composition interval concept from the physical insight approach. The superstructures are partitioned into temperature/composition intervals using the supply and …
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Capital cost targets for the optimum synthesis of mass exchange networks
Pinch Technology is very well developed for heat exchanger network synthesis (HENS). It is possible to predict, on thermodynamic grounds, the minimum energy, capital and total costs for a network. These targets are set before any design and can also be optimised at this stage. Special design …
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Supply and target-based superstructure synthesis of heat and mass exchange networks
… new methods for superstructure synthesis of heat exchanger networks (HENs) and mass exchanger networks (MENs) that involve the use of key parameters in HEN and MEN to define superstructure intervals. The key parameters are the stream supply and target temperatures/compositions. The Supply-Based …
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A spreadsheet-based tool for synthesis of heat and mass exchange networks
… applying Pinch Technology approach to both Heat Exchanger Networks Synthesis (HENS) and Mass Exchanger Networks Synthesis (MENS) for use by ordinary engineers. Pinch Technology is a structure independent approach.
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Industrial symbiosis and the successional city : adapting exchange networks to energy constraints
… to closed-loop systems through the reuse and exchange of waste materials, energy, and knowledge, showcase advantages in waste and energy use reduction within the United States. What are the major limits holding back the widespread development of industrial symbiosis in this country and how can …
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The synthesis of Combined Heat and Mass Exchange Networks (CHAMENs) with renewables considering environmental impact
… Extensive studies have been conducted for heat exchange network synthesis (HENS), which was first used to optimise utility usage and operating costs. Many existing mass exchange network synthesis (MENS) methods are derived from HENS techniques since analogies exist between the two networks. …
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Synthesis of optimal heat and mass exchange networks using a two-step hybrid approach including detailed unit designs
… for the synthesis of optimal heat and mass exchanger networks through a novel hybrid method. The two-step procedure makes use of simplified exchanger models in a network optimisation step, followed by a detailed design where the exchangers found in the network synthesis step are modelled in …
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Gender, water and development: The multiple impacts and perceptions of a rural water project in Nampula, Mozambique
… In Nampula, water is closely connected to exchange networks, power dynamics, cultural traditions, spiritual practices, and social values. Gender roles are formed in relation to water and negotiated around changes in water access. Women spend most of their day in contact with water in some …
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Ceramics of Aztec north and the terrace community, Aztec Ruins National Monument
… that people at this site were tied into Chacoan exchange networks.</p>
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Understanding the rhythms of email processing strategies in a network of knowledge workers
… adopted within different types of knowledge networks can influence average email response time, average primary task completion time, and the overall effectiveness, comprising value-effectiveness and time-effectiveness, in the presence of interruptions. Earlier research on the topic has …
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In Our Blood: Mapping Narrative Enactments of Leukaemia Online
… support sites function as hubs within complex networks connecting through to a variety of narrative enactments of CLL, this thesis draws on Actor-Network-Theory (ANT) throughout to explore and explain these narrative phenomena. The work shows that stories relating to CLL circulate in differing …
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Copper Metallurgy in Cilicia and the Amuq in the Second Millennium BC: Insights into Aspects of Bronze Age Technology and Trade
… of the southern Anatolian coast within the exchange networks of the eastern Mediterranean and the Near East during the second millennium BC (Middle and Late Bronze Ages). To investigate this, the project employed chemical and lead isotope analysis of copper objects from the Bronze Age sites …
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Unraveling the population history of the Xiongnu to explain molecular and archaeological models of prehistoric Mongolia
… context and makes inferences about genetic exchanges. A quantitative genetic model is used to test group relationships and infer levels of gene flow between groups.</p> <p>Results indicate the Xiongnu were composed of at least two biologically distinct groups. One sample from an elite …
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Unraveling the population history of the Xiongnu to explain molecular and archaeological models of prehistoric Mongolia
… context and makes inferences about genetic exchanges. A quantitative genetic model is used to test group relationships and infer levels of gene flow between groups.</p> <p>Results indicate the Xiongnu were composed of at least two biologically distinct groups. One sample from an elite …
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Bayesian regional models of gold and copper alloys from pre-Hispanic Colombia
… and politically and ritually intertwined exchange networks. The cross-regional Colombian analyses, in turn, are used to highlight the importance of pre-Hispanic metal synergies, where the use of both gold and copper was highly interlinked through space. Notable variations of technological …
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