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 22 for “"System Dynamics simulation"”.
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System dynamics simulation of the telecom industry
… to integrate several pieces of relatively simple dynamics simulations into a full blown system dynamics simulation of the telecom industry. The economic simulation model was used to analyze potential dynamics, reaching basic qualitative insights on the forces behind the industry. Examples of the …
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The development of a combined simulation approach in a sexual health context: combining discrete event and system dynamics simulation to form a composite model
… with Pelvic Inflammatory Disease (PID). A System Dynamics (SD) model of Chlamydia prevalence has been constructed to evaluate different screening strategies. The SD model incorporates risk groups, ageing, gender, heterosexual and homosexual relationships and migration in and out of the area …
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Optimization models and system dynamics simulations to improve military manpower systems
… to more senior level positions, and in some open systems when and how many experienced employees to hire into these senior positions. This dissertation studies and develops three different methods and approaches to provide improved decision support to a healthcare organization’s manpower system. …
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A Simulation Model for Estimating Human Error Probability
<p>This report describes the system dynamics architecture of a simulation model which estimates human error probability for humans performing certain tasks in a given scenario. Human error probability is estimated as a function of the type of tasks performed and the number of performance shaping …
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Sensetable : a wireless object tracking platform for tangible user interfaces
Sensetable is a system that electromagnetically tracks the positions and orientations of multiple wireless objects on a tabletop display surface. The system offers two types of improvements over existing tracking approaches such as computer vision. First, the system tracks objects quickly and …
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Developing a risk management "flight simulator" for manned space programs : a user interface to a system dynamic simulation of system safety at NASA
… thoroughly practiced and refined during advance simulation. Whether the simulation uses a computerized flight simulator that recreates the physics and experience of flight, or a simple mock-up with paper cutouts and hand tools, the end result is the same: people learn to make. better and safer …
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Using system dynamics to explore gini coefficient parametrics
… is thus critical. This project made use of a system dynamics methodology with feedback loops to provide an insightful alternative to the conventional linear statistical empirical approaches such as multiple regression analysis and principal component analysis, generally used to explore the …
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The Effect of Maintenance Policy on System Maintenance and System Life-Cycle Cost
This research presents a framework system dynamics (simulation) model that evaluates the effect of maintenance policies on system performance and life-cycle cost. The model highlights factors such as learning, aging and the technological upgrades that occur during the life-cycle of a system. The …
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Environmental hazard identification, assessment and control for a sustainable maritime transportation system
… The first research contribution is a System Dynamics simulation model that examines the MTS resiliency after an extreme event and determines the sequence needed to restore the ocean-going port to its pre-event state. The second is a Decision-Making in Complex Environments (DMCE) tool …
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Addressing the Reliability and Life Cycle Cost Analysis Problem for Technology and System Developers Early in the DoD System Development Process
… process of developing or upgrading new weapon systems, Department of Defense (DoD) system and technology developers are faced with decisions regarding which technologies are appropriate for inclusion into the conceptual design. To reduce risk and improve decision making, system and technology …
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Simulation of the nuclear fuel cycle with recycling : options and outcomes
A system dynamics simulation technique is applied to generate a new version of the CAFCA code to study the mass flow in the nuclear fuel cycle, and the impact of different options for advanced reactors and fuel recycling facilities on the accumulation of the transuranics (TRU) inventory. Several …
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Development of automatic vehicle headway control law and a simulation tool
… human errors by introducing a computer control system. The purpose of this research was to develop and evaluate a control law and a simulation tool for the study of automatic vehicle headway control. This research considers longitudinal control of a platoon of vehicles on automated highways. A …
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Enhancing Screening for Perinatal Mood and Anxiety Disorders in Critical and Emergency Care: A Multidimensional Approach Leveraging Machine Learning and System Dynamics
… remain suboptimal, highlighting the need for a system-level understanding of the barriers and opportunities within the current process. This dissertation applies a multidimensional approach to enhance the PMAD screening system through three interconnected studies. The first develops and …
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Metal price volatility : a study of informative metrics and the volatility mitigating effects of recycling
… of scarcity risk might correlate with price. A system dynamics simulation of the aluminum supply chain was run to determine how well some commonly used metrics of scarcity correlated with future changes in price, and to explore some conditions that strengthened or weakened those correlations. …
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Material scarcity from the perspective of manufacturing firms : case studies of platinum and cobalt
… primary producers were examined. In addition, a system dynamics simulation model of the platinum material system was built using historical data specific to the platinum market. The effects of platinum scarcity and the impact of pursuing recycling on manufacturer concerns were examined. It was …
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Three Essays on Systems Thinking and Dynamic Modeling in Obesity Prevention Interventions
… Influence in Childhood Obesity Interventions: a Systematic Review The objective of this study is to understand the pathways through which social influence at the family level moderates childhood obesity interventions. We conducted a systematic review of obesity interventions in which parents' …
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A decision analysis framework for the U.S. nuclear fuel cycle
… complex, long-lived technical infrastructure systems. The framework consists of a system dynamics simulation coupled with a decision analysis model. The system dynamics code is developed specifically for this study to be simple, fast-running, and also to echo the results of many previous …
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Desarrollo de un modelo de simulación para ensayar políticas operacionales en cadenas de suministros de PYMES transformadoras
… or labor force can mitigate this impact, a system dynamics simulation model has been designed. The conceptual model of the generic supply chain developed in chapter four considers three producers of raw material, one supplier of raw material, one producer, one wholesaler and several …
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