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 93 for “"Annual Cost"”.
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Design of consistently near-optimal heat exchanger networks by a two-stage optimisation approach
… objective function to be minimised is the total annual cost. The total annual cost is the sum of the annual cost of energy and the annual cost of capital. The annual cost of energy is the sum of the annual costs of hot utilities and cold utilities. The annual cost of capital is the sum of the …
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A computerized analysis of silo investments
… of dimensions. It computes present value of cost, annual cost, and costs per ton of silage. It also provides a cash-flow, and ranks silo alternatives on annual cost, cost per ton, and storage capacity. Trial runs were designed for analysis by the program. With no borrowed money and a 9% …
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Maintaining a Nitrogen Cap for Virginia's Potomac River: The Contribution of Alternative Development Patterns
… The state of Virginia is trying to reduce its annual load of Nitrogen, to the Potomac River, to 60% of what the load was estimated to be in 1985. Virginia would like to accomplish this goal at the lowest cost to its citizens. Therefore the state needs to determine the combination of nitrogen …
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Approvals, Utilization, and Cost of Biologics for the Treatment of Rheumatoid Arthritis
… the approval status, utilization, and high cost of bDMARDs pose challenges in RA management.</p> <p><strong>Objectives:</strong> This dissertation evaluated the association between the utilization of bDMARDs and the sociodemographic characteristics of the RA patient population. It also …
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The cost of providing consultative palliative care services in a tertiary hospital setting
… life limiting conditions. In South Africa, costing frameworks for palliative care interventions for the public sector do not exist and the cost of running a comprehensive palliative care programme remains unknown. There are few costing studies to inform costs of palliative care models which …
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Integrated renewable energy polygeneration networks: a multi-objective optimisation and game theoretic approach
… detailed experimentation without the associated costs and risks of setting up real-life prototypes. In line with this approach, this dissertation presents an integrated resource network model that includes a bioenergy supply chain and a polygeneration hub. The objective is to optimally allocate …
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Acid gas removal from natural gas using ionic liquids
… and 7% of the regeneration energy and the total annual cost, respectively, were saved by using IL instead of amine, while up to 40% and 27% of the regeneration energy and the total annual cost, respectively, were saved by using a blend of IL with other physical solvent.
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An evaluation of a heat syneresis process on domestic U.S. sewage sludges
… conditions for the other mixtures. Design and cost evaluations of two plant scale systems (one with high pressure sludge pumping; one without) for heat treating domestic sludge show the process to be economically feasible for a design population of 100,000 persons. The annual cost of the heat …
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Cost-optimized warehouse storage type allocations
… offs between the capital, fixed and variable costs of Amazon's storage related operational decisions, leading to inefficient warehouse storage type allocations and higher operational costs. The focus of this six-month LGO internship was to develop a cost model that takes into account all …
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INTERDEPENDENT REGULATION OF METABOLISM AND INFLAMMATION IN HUMAN MONOCYTES
… sepsis has a mortality rate of 20-30%, with an annual cost of over $25 billion. Modern advances in supportive care have brought the mortality rate down to its current level, however there is currently no molecular-based treatment available for sepsis. Many treatments have been tested in clinical …
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A Combined Energy–Exergy Approach for Improving Refrigeration Systems in Deep-Level Gold Mines: Method Development and Case Study Validation
… economic pressure and rising electricity costs are driving energy efficiency initiatives on deep-level mines. One of the major energy consumers on deep-level mines is the refrigeration system, which supplies chilled water for cooling the underground working environment. Due to the outdated …
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The relationship between complementary and alternative medicine (CAM) use and quality of life among individuals with chronic pain: results from a nationally representative sample
… health concern in Canada, with an estimated annual cost of $6 billion in direct health care expenses. At the same time, Canadians are participating in an increased use of complementary and alternative medicine (CAM) therapies. Purpose: The purpose of this quantitative research study was to …
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Improving inventory and distribution in an aerospace parts and service organization
… meet current and future needs while minimizing cost and maintaining or raising service levels. The combined proposals of relocating distribution center volumes, reducing on hand inventory at co-located sites and closing a forward stocking location are estimated to result in over one million …
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Methodologies for the Evaluation and Mitigation of Distribution Network Risk
… to evaluate that risk, in terms of expected annual cost to the network operator, under a range of different scenarios and for both simple and complex network topologies. The scenarios considered include asset ageing, network automation and increasing utilisation as a consequence of electric …
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Methylobacterium spp.: Emerging Opportunistic Premise Plumbing Pathogens
… many infections linked to drinking water. The annual cost of disease caused by these waterborne pathogens is $850 million. Key characteristics of these opportunistic waterborne pathogens include: disinfectant- resistant, biofilm formation, thermal-tolerance, desiccation-resistant, growth in …
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Reducing the energy demand of bioethanol through salt extractive distillation enabled by electrodialysis
… energy demand reduction of about 20% and total annual cost savings on the order of MM$0.5 per year when compared with the state-of-the-art rectification/adsorption process for producing fuel ethanol from the beer column distillate. In case of cellulosic ethanol, salt extractive distillation with …
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Analysis and mitigation of the impacts of integrating fast-charging stations on the voltage fluctuations
… the cheapest mitigation device, according to the cost per kVAr basis and the total annual equivalent cost. Besides, to mitigate the impact on the voltage and light flicker, a novel smart charging is proposed in this study in which customers can select one of three charging services available in …
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Analyzing Cost Implications of Water Quality Trading Provisions: Lessons from the Virginia Nutrient Credit Exchange Act
The purpose of this study was to analyze the cost implications of various provisions of the Virginia Nutrient Credit Exchange Act. The first objective was to estimate the cost implications of point source trading provisions of the Act. An integer programming cost minimization model was constructed …
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Engineering and policy analysis of strategic and tactical options for future aerospace traffic management
… to disrupt aviation, which could become costly with growth in air or space transportation. This was investigated through integrated engineering/policy analysis of strategic and tactical options. Total annual disruption cost was calculated using the number of conflicts per SUA event, the …
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Burden of Illness and Pharmacoeconomic Evaluation of Lumacaftor/Ivacaftor in Cystic Fibrosis
… of expenditure in CF group, and an incremental cost burden in CF group compared to non-CF group was estimated. In Part 2, static decision models were developed using MS Excel<sup>®</sup> to evaluate the cost effectiveness and budget impact of lumacaftor/ivacaftor over a 1-year time frame from a …
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