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 147 for “"operating cost"”.
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U.S. airline industry operating cost measures from 2000-2016
… the evolution of U.S. airlines' unit operating costs from 2000-2016 as well as the factors that drove major changes in cost metrics. We assess the trends in operating cost by carrier type as well as for individual airlines and find evidence of a recent operating cost divergence between …
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Airline operating cost reduction through enhanced engine health analytics
… by unexpected engine failures and the associated cost burdens. With respect to operating cost, airlines standardly report Cost Per Available Seat Mile (CASM) and Cost Per Block Hour (CBH). EHM services that prevent operational disruptions can help airlines reduce these unit-cost metrics, whose …
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Airline operating cost reduction through enhanced engine health analytics
… by unexpected engine failures and the associated cost burdens. With respect to operating cost, airlines standardly report Cost Per Available Seat Mile (CASM) and Cost Per Block Hour (CBH). EHM services that prevent operational disruptions can help airlines reduce these unit-cost metrics, whose …
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Impact of parametric aerothermal variability on aircraft engine operating cost
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 2002.
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Capital and operating cost estimation handbook for the milling of uranium ores in the United states
Includes bibliographical references.
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A methodology to study photovoltaics and storage system interactions
… The methodology concentrates on the daily operating cost of the system. Only from a detailed comparison of alternatives can we develop a system that maximizes the benefits of photovoltaics and storage systems, while remaining cost competitive. This methodology consists of several steps that …
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A Parametric Simulation Model for Evaluating Cost Effectiveness of Remote Monitoring for Risk Reduction in Rural Water Supply Systems and Application to the Tazewell County, Virginia System
A simulation model analyzes cost effectiveness of remote facility monitoring for risk reduction in rural water supply systems by performing a break-even analysis that compares operating costs with manual and remote monitoring. Water system operating cost includes the value of water loss (i.e., …
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Preliminary design capability enhancement via development of rotorcraft operating economics model
… is to develop a means of predicting direct operating cost (DOC) for new commercial rotorcraft early in the design process. This project leverages historical efforts to model operating costs in the aviation industry coupled with a physics-based approach. The physics governing rotorcraft …
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The Effects of Delay and Probabilistic Discounting on Green Consumerism
… between a conventional product (low initial cost, high operating cost) and green product (high initial cost, low operating cost). Magnitude was manipulated by randomly assigning participants to a light bulb (low magnitude) or water heater (high magnitude) condition. Within each magnitude …
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Fuel-constrained unit commitment
… in order to minimize the overall production cost. Through a wide range of scheduling activities, utility companies attempt to get maximum utilization of the available resources. However, the problem is a complex and challenging one as these scheduling activities interact with one another. …
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Statistical Scheduling of Economic Dispatch and Energy Reserves of Hybrid Power Systems with High Renewable Energy Penetration
… approach focuses on minimizing the overall power operating cost with considerations of renewable energy uncertainty and power system security. A hybrid power system generates electricity from both conventional and renewable energy sources. In such a system, it is challenging and yet an open …
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Review and improvement of reverse logistics in an electronics company
… in year 2005. The major reasons are its high operating cost and high inventory level. After reviewing its reverse logistics system, we found that current policy to process the returned product does not reap the maximum amount of profit from returns. We proposed to add a new channel to process …
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Optimal Scheduling Method for Multi-Energy System
… energy utilization efficiency, reduce system operating cost, and improving solar power integration. In this thesis, optimal scheduling methods based on machine learning and optimization techniques of a real multi-energy system, Stone Edge Farm, CA, are proposed from an economic point of view. …
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Cost-benefit analysis of aircraft design for environment using a fleet perspective and real options
… optimization (MDO) approaches do not examine the costs associated with damage due to environmental factors and are usually implemented to examine one aircraft. The Environmental Design Space (EDS), an MDO tool, needs cost models that can incorporate the damage cost benefits of environmentally …
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Metrics to segment the Brazilian agricultural financial market for operating loans
… of Brazilian Agricultural Financial Market for Operating Loans for the nine major crops in Brazil in the season 2018/2019. The study will determine the size of the total operating cost market, determine the size of the Rural-Credit versus Non-Credit funds, and divide it out by the financial …
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Inventory management strategy for the supply chain of a medical device company
… to a significant reduction of the supply chain cost. Through the use of relevant mathematical formulae and Strategic Inventory Placement optimization method, this paper examines the extent of the usefulness of a few possible strategies, such as kitting architecture change and continuous review …
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On Demand Mobility Commuter Aircraft Demand Estimation
… ability to operate in bad weather, vehicle operating cost, siting and cost of landing sites, and overall public acceptance of small, remotely operated aircraft. Nine scenarios were run varying the input for a base fare, landing fare, cost per-passenger-mile, auto operational costs, and …
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Optimal Operation of Multi-Energy Systems in Integrated Energy Networks with Distributed Peer-to-Peer Energy Transactive Framework
… distribution networks with interconnected MES operating in a P2P market. A stochastic bi-level optimization model is formulated for interconnected energy hubs in an integrated gas/electrical distribution network with P2P trading to simulate the interaction between the distribution network …
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Historical and future trends in aircraft performance, cost, and emissions
… relationship between aircraft performance and cost, and assess aviation emissions reduction potential based on analytical and statistical models founded on a database of historical data. Technological and operational influences on aircraft fuel efficiency were first quantified utilizing the …
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