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 80 for “"Maintenance Cost"”.
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Sensor-based maintenance cost estimation and residual value estimation for medical equipment recycling
… equipment manufacturing companies that provide maintenance and product take-back programs have limited information about location and severity of defects, and the condition of the product before making decisions about whether to repair, recycle, remanufacture, refurbish or call-back and scrap …
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Operations and maintenance cost for new major U.S. Coast Guard platforms: projected versus actual costs.
… examines the accuracy of the operations and maintenance budget models developed for new U.S. Coast Guard cutters and aircraft as part of life cycle cost analysis prior to acquisition. The HU-25A medium range search aircraft and HH-65A short range recovery aircraft were used along with the 270 …
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The derivation of a set of rates that can be used to determine the operation and maintenance cost of municipal engineering services in residential areas in the Western Cape
Includes bibliographical references (leaves 128-130).
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Systems engineering analysis of urban region sludge disposal alternatives
… The model calculates both capital and operation costs for sludge treatment and disposal operations. For a study of an urban region with an equilibrium wastewater generation rate of 44.74 million m³/yr, the optimum sludge disposal alternative was dedicated land disposal for a baseline analysis of …
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Costs of maintaining the conservation reserve program in Illinois in the presence of biofuels
… of biofuel production, is likely to increase the maintenance cost of the program. This study develops a dynamic, multi-market, mathematical program to estimate the cost of maintaining CRP enrollment at the 2007 level in Illinois over 2007-2020 under exogenously given ethanol prices. We conduct the …
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Assessing knowledge transfer for facility management to the development of new students' residential colleges in UTHM, Malaysia
… to universities by the government is spent on maintenance. Studies have revealed that the main reason for the high maintenance cost is due to building design decisions by architects with unrealistic expectation on how the buildings should operate. The architects are rarely present during …
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A novel model for improving the maintainability of web-based systems
… pages to complex applications that have a high maintenance cost. This is due to the inherent characteristics of web applications, to the fast internet evolution and to the pressing market which imposes short development cycles and frequent modifications. In order to control the maintenance cost, …
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SenSys: A Smartphone-Based Framework for ITS applications
… challenges, like the high installation and maintenance cost, connectivity and communication problems, and the limited set of data. The recent massive spread of smartphones among drivers encouraged the ITS community to use them to solve ITS challenges.</p> <p>Using smartphones in ITS is …
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Optimization of BMP Selection for Distributed Stormwater Treatment Networks
… such as installation and operation and maintenance cost must be considered. Due to these multiple competing selection criteria and regulatory requirements, selection of optimal configurations of BMPs by manual iteration using conventional design tools is not tenable, and the resulting …
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Advanced risk and maintenance modelling in LNG carrier operations
… Reasoning (ER) for risk/safety assessment and maintenance modelling of LNG carrier operations. These advanced computational techniques can help to overcome challenges posed by uncertainties associated with the LNG carrier operations. Their usefulness is demonstrated using case studies in this …
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Identifying Common Ultrasonic Predictive Failure Signatures in Bearing Elements for the Development of an Automated Condition Based Ultrasonic Monitoring Controller.
… be used to help reduce equipment downtime and maintenance cost when utilized in an industrial environment.</p>
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Magnetic augmented rotation system (MARS ) - properties and performance
… noise, requires no lubrication and has low maintenance cost. In order to assess the performance of MARS, a charging system based on MARS is implemented. This system includes rechargeable batteries in the range of 6 volts to 12 volts, a load in the form of a light bulb, a voltage transformer, …
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Análise do potencial de geração distribuída de energia solar fotovoltaica nos setores bancário, de educação básica e postos de gasolina
… inputs, capital expenditure, operation and maintenance cost and cost of capital, in order to quantify not only the technical potential but also the economic potential involved in these cases. Therefore, this study can be a platform of analysis for other service segments in future research.
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Dynamic Behavior of Balanced NV-trees
… well studied, however, the performance of index maintenance has not yet been reported in any detail. In this thesis we focus on the dynamic behavior of the NV-tree, which is a disk-based approximate index for very large collections. The NV-tree has several configuration and implementation options …
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Sequential estimation of optimal age replacement policies when distribution of lifetimes is phase type.
… to cut down system failures and minimize maintenance cost. By scheduling planned replacements, a system is replaced at age <f>* or at failure, whichever comes first, and the cost of replacement before failure (planned) is less than the cost after failure (unplanned). In this thesis, the …
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Understanding the impact of the scavenging capacity on costs of the UV chlorine advanced oxidation process for drinking water treatment using the external calibration method and the development of cost curves.
… radicals. The results were used to estimate the cost implications of installing a UV/H2O2 or UV/Cl reactor in a drinking water treatment plant. Initial capital and ongoing operational and maintenance cost curves were developed to characterize the potential cost savings of utilizing the method to …
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Use of fiber reinforced polymer composite in bridge structures
… conditions, resulting in potentially low maintenance cost. These properties make FRP composite a good alternative for innovative construction. In the past 10 years, experiments have been conducted to investigate the applicability of FRP composite in bridge structures, including the …
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Estimating Post-Construction Costs of a Changing Urban Stormwater Program
… control practices must be maintained over time. Maintenance costs of these facilities, however, are poorly understood. A case study of five municipalities around the United States is used to estimate inspection and enforcement costs for each case site. Maintenance activities and costs were …
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Maintenance trend analysis of air conditioning systems for ship operations in the Arabian Gulf
… (DoN) budgets for Arabian Gulf operations. The cost of operations is now required to be submitted as part of the annual budget vice funded as contingency operations. In order to justify increased funding of incremental costs for operations in the Gulf, a method to justify such budget requests …
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Everyone deserves great design: Design towards the 100%
… a minimum initial investment and low long-term maintenance cost. 4. Dignify Everyone We are all human. Do not discriminate based on geography, culture, or economic status. A homeless person and the President should be treated equally. These principles are utilized to curate 40 examples of great …
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