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.
Results
Showing 1 to 20 of 27 for “"construction operation"”.
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Construction crew productivity monitoring supported by location awareness technologies
Construction productivity, which is measured by output per unit of resource input, plays a key role in the success of a construction project. High productivity leads to lower unit cost to carry out a task or operation. Analyzing construction productivity, however, is a challenging task because of …
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The application of biogas technology in South Africa for small-scale energy production
… or "simple" biogas technology, i.e. the design, construction, operation and utilisation of relatively simple biogas systems in South Africa, and to explore the utilisation of the technology by lower-income groups in the rural areas of the country, particularly in the former homelands. Specific …
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Aurora: Lunar Surface Power Plant
… is evolvable to support continuous robotic/human operation and is capable of scaling to global power utilization and industrial power levels. Achieving this mission will require a deep understanding of the foundational requirements that will guide the design and planning sequence of the lunar …
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Fundamental Investigations of the Quadrupole Ion Storage trap Operating in Novel Modes
… thesis presents a novel approach to the construction, operation and use of a Quistor as a mass spectrometer. It is felt that the method used offers significant advantages over other methods employed in previous work.<br/><br/>The research undertaken includes a substantial amount of …
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Artificial recharge for conjunctive use in irrigation : the San Joaquin Valley, California
… method to use because of its low cost of construction, operation and maintenance. To store water for agriculture, the capacity to recharge water within a limited time is the most important characteristic determining the feasibility of artificial recharge. Regarding a direct surface method, …
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Effects of alignment on CO2 emissions from the construction and use phases of highway infrastructure
… activities within all industrial sectors, with construction projects being no exception. The concept of Whole Life Carbon (WLC) involves understanding the carbon impact of an infrastructure project from its beginning, through its serviceable life, to the end of its life. The WLC concept can be …
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Sustainability analysis: A stochastic formulation for evaluating the sustainability of engineering systems
… suffer from deterioration due to regular operation and exposure to extreme events and harsh environmental conditions. As a result, regular recovery strategies are often required to restore the system to a target safety and functionality level. There is a need to evaluate the associated …
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Geospatial cost drivers in computer-aided electrification planning : the case of Rwanda
… reflect the challenges associated with construction, operation, and maintenance of electrical infrastructure in the presence of such geographical features as mountains, waterbodies, and wetland areas, as well as human-designated areas which may be considered sensitive to development, as …
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Sustainable metropolitan mobility and public-private partnerships : a highway to institutional reform?
… planning, finance, investment, design, construction, operation, and management for addressing the long-term viability of cities and metropolitan areas. At the same time, governments have increasingly employed public-private partnerships (PPPs) for metropolitan transportation …
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Sustainable construction in Mexican housing markets
… housing markets as an example of how sustainable construction is being adapted and applied in developing countries. The recognition that the construction, operation, and demolition of buildings greatly impact the environment has spurred industry and government alike to examine ways to foster …
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A dynamic damping device for payload pendulations of construction cranes
… handler, the crane plays a vital role within the operations of the manufacturing, construction, and shipping industries. Objects of all shapes and sizes are conveyed with the crane to improve productivity and reduce worker fatigue. The crane's capacity to operate efficiently and safely however, …
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Control of balance of plant components for solid oxide fuel cell systems with sensitivity to carbon formation
… temperatures create engineering challenges in construction, operation, and durability of the system as a whole. Both fuel and air must be pre-heated prior to entering the fuel cell stack. In order to ensure that carbon does not build up and degrade the system some form of fuel preprocessing is …
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Assessment methodology for the environmental impact of bridges
… in the emissions due to structures (their construction, operation, maintenance, and end of life) can have a real impact on the total emissions of greenhouse gases in the world. Many rating systems have been established to evaluate the performance of buildings and their environmental impact. …
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An active landfill design for indefinite waste storage
… and economically feasible conditions for its operation. In operation, conditions are created and maintained within and surrounding a containment cell to insure that a potential for convective inflow exists everywhere across an encapsulating barrier which tends to counter the potential for …
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Designing Operations of Geocomposite Membrane Installation in Flexible Pavements
… innovations new materials are introduced to the construction industry from time to time and need to be installed properly by contractors. Based on their past experience, the contractors have some ideas on how to carry out the operation. However, those ideas are just a good starting point. In …
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Sustainability of Water and Wastewater Infrastructure: Using a Public-Private Partnership Model for Project Financial Assessment
… the concessionaire remains responsible for the operation of the project during the entire concession life. A financial model that can be used to input costs and activities for water and wastewater infrastructure projects will be described. This model was developed as part of this thesis as an …
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Morphological effects on gas transport through poly(methylmethacrylate)-poly(dimethlysiloxane) graft copolymers and instrumentation for their synthesis and permeability characterization
… for this purpose. The engineering design, construction, operation, and in some cases automation of the above instrumentation is discussed in detail. Examples of the synthesis and permeability characterization of several especially interesting multiphase graft and star block copolymers are …
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Simulation and Optimization of a Constructed Wetland for Biomass Production and Nitrate Removal
… the relationship between the costs of wetland construction, benefits from biomass sales, and mass nutrient removal can be seen for various wetland sizes and water throughput capacities. Using genetic algorithms, the Pareto-optimal frontier showing the tradeoff between nutrient removal and the …
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Analysis and modeling of roofer and steel worker fall accidents
… <p>There are more than nine million construction workers in the US. Roofers and steel workers are the highest risk construction trades according to BLS, and fall from elevation accounts for a large percentage of fatalities and injuries among the construction trades.</p> <p>In this …
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