Tesis sobre el tema "Power resources"
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Nikonov, M. "Energy resources: wave power". Thesis, Sumy State University, 2017. http://essuir.sumdu.edu.ua/handle/123456789/62834.
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The topic of renewable energy is an evergreen subject, especially, in a world dominated by fossil fuels. Renewable energy is widely discussed in the contemporary world because it is unlimited, which means it’s sustainable and does not emit greenhouse gasses that are harmful to the environment and human life. A classic example of renewable energy is wave energy.
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Simshauser, Paul. "Microeconomic reform of wholesale power markets : a dynamic partial equilibrium analysis of the impact of restructuring and deregulation in Queensland /". Microeconomic reform of wholesale power markets, 2001. http://adt.library.uq.edu.au/public/adt-QU20021202.184229/index.html.
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Abdurahmonov, Ahad. "The role of energy resources in foreign policy behavior of small states a comparative study of Kyrgyzstan and Turkmenistan /". Laramie, Wyo. : University of Wyoming, 2009. http://proquest.umi.com/pqdweb?did=2065747431&sid=1&Fmt=2&clientId=18949&RQT=309&VName=PQD.
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Wildrick, Carl M. "Stability of distributed power supply systems". Thesis, This resource online, 1993. http://scholar.lib.vt.edu/theses/available/etd-07112009-040311/.
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Kitsou, Olga 1973. "Power generation from geothermal resources : challenges and opportunities". Thesis, Massachusetts Institute of Technology, 2000. http://hdl.handle.net/1721.1/38199.
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Thesis (S.M.)--Massachusetts Institute of Technology, Technology and Policy Program; and, (S.M.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2000.Includes bibliographical references (leaves 73-79).
As we enter the 21st century, increasing concerns about global warming have stimulated an upsurge of interest in the use of non-fossil energy technologies for electricity production. As a result there is an opportunity for expansion of geothermal resource development. This thesis examines power generation technology for two distinct categories of geothermal resources: Hydrothermal and Hot Dry Rock (HDR). The thesis assesses growth opportunities for, and challenges to, the full deployment of geothermal power systems in the electricity market. It analyzes the key impediments that - have and will affect the attractiveness of geothermal technologies, describes policy measures that can be adopted to overcome these impediments, and draws conclusions and recommendations for R&D on geothermal systems.
by Olga Kitsou.
S.M.
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Granlund, Robert. "Russian Advocacy Coalitions : A Study in Power Resources". Thesis, Försvarshögskolan, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:fhs:diva-3976.
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This study examines the advocacy coalitions in Russia. Using the Advocacy Coalition Framework, it looks at the power resource distribution amongst the coalitions, and how this distribution affects Russian foreign policy. The power resources examined are: Formal Legal Authority; Public Opinion; Information; Mobilizable Troops; and Financial Resources. In addition to this, the study used quantitative and qualitative methods to identify these resources. There are a couple of conclusions we may draw from this study. The method is useful in identifying power resources. It is not enough to use only the distribution of resources amongst coalitions in order to explain policy changes. It is found that the distribution of resources, coupled with coalition interaction, is enough to explain changes in Russian foreign policy.
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Moeltner, Klaus. "Applications of non-standard maximum likelihood techniques in energy and resource economics /". Thesis, Connect to this title online; UW restricted, 2000. http://hdl.handle.net/1773/7405.
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Heller, David. "The practice, power and poetics of direct action". Thesis, University of Hull, 2001. http://hydra.hull.ac.uk/resources/hull:10471.
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Eftychiou, Evi. "Power and tourism : negotiating identity in rural Cyprus". Thesis, University of Hull, 2013. http://hydra.hull.ac.uk/resources/hull:10420.
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This thesis focuses on the disputed identity of rural Cyprus. It is an ethnographic study on tourism that argues that the power of western hegemony, not only defines but also reverses the definition of ‘modern’ identity in the cultural setting of Cyprus in a way that its authority is maintained and legitimized. By focusing on identity politics and tourism in the Troodos mountainous region, this study examines the conflict between native elites and locals over the definition of modernity. In the postcolonial setting of the 1960s, native elites reproduced the western vision of ‘development’, ‘progress’ and ‘modernity’, as expressed in Europe after the Second World War. The invented concept of ‘modernity’ was introduced by native elites and was translated into policies and strategies towards the achievement of rapid ‘progress’ and the development of mass tourism in the coastal zones of Cyprus. As a result, the Cypriot authorities neglected Troodos mountainous region as a low--‐priority area and its residents were exposed as underdeveloped, backward peasants. The economic boom of the 1970s and 1980s, provided to rural residents the opportunity to, finally achieve ‘progress’, by reproducing the mass tourism model. In the meantime though, the native elites reversed the definition of modernity, which reproduced the western principles of sustainable development, environmental and cultural heritage protection. The ‘underdeveloped’ region of Troodos, was now identified as ideal for the implementation of environment and heritage conservation projects, with the ultimate goal of developing small scale, cultural tourism in the area. In this context, native elites appropriate material tradition, in other words elements that were once classified as evidence of backwardness, in order to achieve ‘modernity’. The denial of locals to reproduce the new paradigm of development and their persistence to strive for material modernity left them once again exposed as ‘backward’, ‘ignorant’ and ‘parvenus’ peasants.
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Turner, Paul C. "A systems engineering approach to power systems in remote regions". Master's thesis, This resource online, 1991. http://scholar.lib.vt.edu/theses/available/etd-05192010-020012/.
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Trivedi, Manas. "Multi-objective generation scheduling with hybrid energy resources". Connect to this title online, 2007. http://etd.lib.clemson.edu/documents/1202498690/.
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Choi, Byungcho. "Dynamics and control of switchmode power conversions in distributed power systems". Diss., This resource online, 1992. http://scholar.lib.vt.edu/theses/available/etd-06062008-171616/.
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Schulz, Steven Ernest. "System interactions and design considerations for distributed power systems". Thesis, This resource online, 1991. http://scholar.lib.vt.edu/theses/available/etd-03022010-020127/.
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Patterson, David. "Power, Resources and Environmental Negotiation in Community Sport Organizations". Thesis, Université d'Ottawa / University of Ottawa, 2015. http://hdl.handle.net/10393/32769.
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This study sought to examine power, resources and environmental negotiation through an examination of the operations and governance of two Community Sport Organizations (CSOs) located in a mid-sized city in the Midwest region of the United States. This was undertaken by answering three research questions: (1) How does power shape the allocation of resources within CSOs? (2) How do CSOs secure access to resources from their organizational environments? and (3) How do CSOs attempt to manipulate their organizational environment?
The dissertation took a case study approach, combining documentary review with in-depth semi-structured interviews to develop a greater understanding of the CSOs under study and of the dynamics of power that animate the organizations’ activities, decisions, and outlook. By using two theories of power, Lukes’ Three Dimensional (3D) approach and Resource Dependence Theory (RDT), the dissertation examined both an institutional and episodic view of power, providing a richer view of power within the organizations under study.
In RQ1, the study finds that CSOs are willing to allocate resources to the social construction of their sport; that they are sensitive to threshold effects in resource allocation, meaning they provide resources up to the point that a need is met, and not beyond; and that gender played a role in internal resource allocation. In RQ2, the results indicated that the CSOs under study were able to secure resources from their environments through not valuing their institutional existence, and through working with their multi-level governance structures. RQ3 finds that CSOs used anticipatory compliance with environmental actors and borrowing capacity of means to change their organizational environments.
The overall conclusion of the study notes that low organizational capacity in CSOs has considerable benefits to go with the drawbacks previously noted in the CSO and not-for-profit literatures. The study outlines that CSOs are able to use their low capacity status to help ensure their organizational environment remains passive, allowing them to maintain a focus on their members and mission while securing sufficient resources to survive. Further discussion of volunteer leadership being a type of participation in sport and of the challenges of studying CSOs, as well as participant recruitment, are also included.
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Sutherland, Johanna y mhsjaireth@netspeed com au. "Power and the Global Governance of Plant Genetic Resources". The Australian National University. Research School of Pacific and Asian Studies, Department of International Relations, 2000. http://thesis.anu.edu.au./public/adt-ANU20091228.092344.
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This thesis explores the location and nature of the power that is deepening and broadening the revolution in modern biotechnologies, and which is inherent in the global governance of one type of genetic resource plant genetic resources. Plant genetic resources are of increasing importance within the global political economy and ecology because of the power/knowledge networks contributing to, and responding to developments in the biotechnology sector, and concerned with the rampant erosion of biological diversity.
The thesis argues that transnational norms, values and knowledge are important aspects of power. Discursive power, and particularly the power inherent in discourses of sustainable development, security and human rights, are a central focus of the thesis. The thesis challenges realist, neo-realist and other structural analyses of power which focus on relative distributions of power at the level of individual states or at the global level.
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Osborne, Angelina Gillian. "Power and persuasion : the London West India Committee, 1783-1833". Thesis, University of Hull, 2014. http://hydra.hull.ac.uk/resources/hull:17137.
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In 1783 the West India interest - absentee planters, merchants trading to the West Indies and colonial agents - organised into a formal lobbying group as a consequence of the government's introduction of colonial and economic policies that were at odds with its political and economic interests. Between 1783 and 1833, the London West India Committee acted as political advocates for the merchant and planter interest in Britain, and the planters residing in the West Indies, lobbying the government for regulatory advantage and protection of its monopoly. This thesis is a study of the London West India Committee. It charts the course of British anti-abolition through the lens of its membership and by drawing on its meeting minutes it seeks to provide a more comprehensive analysis of its lobbying strategies, activities and membership, and further insight into its political, cultural and social outlook. It explores its reactions to the threat to its political and commercial interests by abolitionist agitation, commercial and colonial policy that provoked challenges to colonial authority. It argues that the proslavery position was not as coherent and unified as previously assumed, and that the range of views on slavery and emancipation fractured consensus among the membership. Rather than focus primarily on the economic aspects of their lobbying strategy this thesis argues for a broader analysis of the West India Committee's activities, exploring the decline of the planter class from a political perspective.
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King, Robert Donald 1954. "FEASIBILITY STUDIES FOR SMALL HYDROPOWER PROJECTS (HYDROELECTRIC, PLANNING, RECONNAISSANCE, WATER RESOURCES)". Thesis, The University of Arizona, 1986. http://hdl.handle.net/10150/292069.
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Perez, David C. "U.S.-China competition for energy resources". Thesis, Monterey, California : Naval Postgraduate School, 2009. http://edocs.nps.edu/npspubs/scholarly/theses/2009/Dec/09Dec%5FPerez.pdf.
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Thesis (Master of Arts in Security Studies)--Naval Postgraduate School, December 2009.Thesis Advisor(s): Lawson, Letitia ; Miller, Alice. "December 2009." Description based on title screen as viewed on January 28, 2010. Author(s) subject terms: U.S.-CHINA Competition, energy resources, economic interdependence, Africa. Includes bibliographical references (p. 47-53). Also available in print.
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Al, Essa Mohammed. "The integration of distributed energy resources into electric power systems". Thesis, Cardiff University, 2017. http://orca.cf.ac.uk/104824/.
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Small-scale, residential, and distributed energy resources (DER), which are electric vehicles (EVs), heat pumps (HPs), and photovoltaic (PV) arrays, were studied to evaluate their impact on the UK future residential demand and their impact on UK distribution networks. Centralized and decentralized controllers were planned in order to defer reinforcement, while connecting DER units to distribution networks. The centralized controller allocates EV charging durations considering network constraints. The decentralized controller adjusts EV and HP loads based on consumer satisfaction, network constraints, and electricity prices. Normal probability distribution and median filter were used to predict aggregated power of EVs, HPs, and PV arrays on a half-hourly basis over a year. Because of an expected surplus of PV power generation, a considerable demand reduction followed by a sharp demand increase will occur with these residential DER units during summer days in 2035. A low voltage section of test network was used to study the impact of uncontrolled EV charging loads on a three-phase four-wire system. Different combinations of EVs, HPs, and PV arrays were used to investigate their uncertainties in a low voltage section of real network. Real-world trials were used to generate the individual power of residential customers and DER units. Results of unbalanced power flow indicated that network constraints exceeded their limits with a high number of these low carbon technologies. Using an extended section of the test network, the central controller maintains voltage magnitudes, voltage unbalance factors, and power flows within their limits, by re-allocating EV charging durations accordingly. The decentralized controller was designed to minimize electricity bills of EV and HP users. This controller adjusts EV and HP loads to maintain consumer satisfaction and network constraints within their specified boundaries. Consumer satisfaction was determined using mathematical models of EV battery state-of-charge levels and the indoor temperatures of HP houses. The decentralized controller was used to connect predicted numbers of EVs and HPs to a real distribution network, while overcoming the need for network reinforcement, third parties (aggregators), and extensive communication systems.
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Cons, Bacilla Ferreira Daniel Gebbran. "Coordination of Distributed Energy Resources using Distributed Optimal Power Flow". Thesis, The University of Sydney, 2021. https://hdl.handle.net/2123/26155.
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Electrical power systems are deemed as one of the most complex systems mankind has built to date. Nonetheless, continuous changes on electricity generation and consumption are increasing the complexity of these systems. The uptake of behind-the-meter distributed energy resources (DER) (such as rooftop PV, battery systems, and flexible loads) requires a more precise coordination of all agents in the grid. This is particularly true for distribution systems, which are traditionally passive systems but require coordination under a high percentage of DER penetration. To perform such coordination, the centralized power system operation paradigm becomes incapable of handling the necessary information flow and computation burden required.
Distributed coordination methods offer an alternative to this paradigm. In particular, distributed AC optimal power flow (DOPF) solved using a prosumer-based decomposition emerge as an effective tool for three main reasons: (i) they explicitly consider network constraints in their formulation, (ii) they permit a prosumer-based decomposition, which retains prosumer privacy and prerogative, and (iii) they computationally scalable.
Distributed methods are further bolstered by the advances on technology systems towards an IoT, edge-computing scenario. The miniaturization of sensors and computing devices, and reliable and efficient telecommunication technologies, allow for deployment of coordination methods with progressively smaller investments.
The present dissertation expands the frontiers of DER coordination, offering advances on both implementation aspects by presenting practical considerations on actual distributed, edge-computing hardware, as well as developing novel formulations for more advanced problems which assume realistic design considerations, a key to implementing DER coordination in real-world settings.
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Scarpello, Fabio. "Politics, power, resources and the political economy of plural policing". Thesis, Scarpello, Fabio (2015) Politics, power, resources and the political economy of plural policing. PhD thesis, Murdoch University, 2015. https://researchrepository.murdoch.edu.au/id/eprint/28312/.
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Parrott, Deborah Johns, Joanna Anderson y Renee Lyons. "Power Up the Connection: Multimedia Resources to Engage All Readers". Digital Commons @ East Tennessee State University, 2015. https://dc.etsu.edu/etsu-works/392.
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Attendees will learn free, specific multimedia resources to entice children to read as well as to improve fluency in vocabulary and comprehension. The majority of young readers are captivated by mobile devices and the Internet. Why not use this to our advantage in reading instruction. Join us to discover games, websites, and apps that engage children and improve phonemic awareness, spelling, vocabulary development, and comprehension.
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Polymeneas, Evangelos. "Optimal operation & security analysis of power systems with flexible resources". Diss., Georgia Institute of Technology, 2015. http://hdl.handle.net/1853/54378.
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The objective of this research is to present a comprehensive framework for harnessing the flexibility of power systems in the presence of unforeseen events, such as those associated with component outages or renewable energy variability. Increased penetration of variable resources in the power grid, mainly in the form of wind and solar plants, has resulted in variable power flow patterns, increased thermal unit cycling and higher reserve capacity requirements. Furthermore, the variability of renewable energy output has increased the system’s ramping requirements and threatens the system’s voltage control capabilities. However, new sources of flexibility and network control are emerging to address these problems. Specifically, energy storage systems, demand side management, distributed energy resources and flexible transmission operation can participate by providing ramping services and/or voltage control, as well as by alleviating transmission congestion. This research focuses on contributing to modeling and optimization approaches for scheduling the operation of these sources of flexibility in a certain look-ahead horizon, ensuring a state of the art level of modeling accuracy, with full inclusion of voltage control considerations which do not exist in current DC-OPF modeling approaches. Also, by including reactive power flows, the network congestion model proposed is above par compared to the current state-of-the-art for look-ahead dispatch literature. Nevertheless, the model is further expanded by including a thermal model for transmission lines, which allows for the implementation of dynamic line ratings in look-ahead economic dispatch. The benefits from these augmented modeling capabilities are documented and compared with current operating practices.
Once an AC-OPF look-ahead optimization problem has been established, and the corresponding components have been modeled, further contributions are made in the area of remedial action schemes. The developed formulations allow for the identification of appropriate corrective actions that will restore feasibility in infeasible cases.
Finally, a combination of contingency filtering and contingency analysis approaches is developed, to allow for fast identification and analysis of critical outages in the transmission system. The filtering approach is based on a basic Taylor expansion of network power flow equations as well as a new formulation of margin indices that directly quantify the proximity to constraint violation in the post-outage system state. The analysis approach is based on low-rank modifications of the Jacobian matrix of network equations, to produce good estimates of post-outage operating states and map the effect on the system’s operating constraints. Compared to current state of the art, advances are made both in the speed and the accuracy of the analysis, since the proposed filtering and analysis methods are fully unbalanced. The need for unbalanced security analysis is discussed and justified.
Through the contributions made in this research, a roadmap to increase flexibility in power system operations is developed. Namely, an enhanced modeling capability allows for integration of additional sources of flexibility and voltage control and a highly accurate security analysis and remedial actions formulation allows for improved response to unforeseen critical outages and rapid generation changes.
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Hossain, Adnan. "Beyond emasculation : pleasure, power and masculinity in the making of hijrahood in Bangladesh". Thesis, University of Hull, 2013. http://hydra.hull.ac.uk/resources/hull:7989.
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Bawakyillenuo, Simon. "Rural electrification in Ghana : issues of photovoltaic energy technology utilisation". Thesis, University of Hull, 2007. http://hydra.hull.ac.uk/resources/hull:579.
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Energy plays a pivotal role in human development. Not only is it sine qua non for national economic development, but it also provides services that enhance social development including, health and sanitation, education, potable water, cooking. In spite of this, at present, there are about two billion people without access to modern sources of energy, most of them in the rural areas of the developing world. Consequentially, the social and economic development of these two billion people hangs in the balance. In recent times, however, considerable advocacy has taken place in the academic and policy studies, environmental fora, and national agenda about solar PV energy technology serving as a panacea to the energy problems of rural populations in developing countries, especially Sub-Sahara Africa, whilst also helping to reduce greenhouse gas emissions. Notwithstanding this great advocacy, the literature on the dissemination of this technology has been incomplete in fostering understanding on the discourses surrounding its low dissemination rates in rural Ghana compared to countries such as Kenya and Zimbabwe; the sustainability of installed solar PV systems; and the usefulness of solar PV in serving the needs of the rural poor. In resorting to an interdisciplinary approach (methodology and theoretical foundation), this study has explored the energy perspectives of Ghana, the dynamics of rural electrification and energy needs, and the interplay of processes and forces underpinning the adoption and non-adoption of solar PV in rural Ghana. Results of this study show that, Ghana has abundant renewable energy resources, especially solar radiation. However, the study further reveals that the resource base alone of solar PV technology is not the panacea to its successful dissemination and the energy needs of all in rural Ghana. Significantly, this study has shown that the adoption and non-adoption perspectives of solar PV in rural Ghana and the sustainability of installed solar PV systems, as well as the disparate levels of solar PV dissemination in Ghana, Kenya and Zimbabwe, are contingent on multi-dimensional circumstances. This stands in contrast to the majority of literature that often emphasise cost as the sole determining factor of the non-adoption of solar PV in most developing countries. Results of this study therefore have implications for rural energy supply policy approaches and other institutional arrangements on solar PV issues in Ghana.
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Beukes, Justin. "An economic analysis of concentrator photovoltaic technology use in South Africa: a case study". Thesis, Nelson Mandela Metropolitan University, 2013. http://hdl.handle.net/10948/d1018636.
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South Africa relies heavily on fossil fuels, particularly coal, to generate electricity and it is a well known fact that the use of fossil fuels contributes to climate change, as it produces greenhouse gases (GHGs). In fact, internationally South Africa is the 17th highest emitter of GHGs (Congressional Research Service (CRS), 2008). Coupled with the environmental consequences of fossil fuel use, South Africa has a further responsibility of addressing the inherited backlog of electricity provision to the rural, and previously disadvantaged communities. In an attempt to address these two problems, the government issued the White Paper on Renewable Energy. In this paper, renewable energy alternatives are proposed to replace a portion of traditional electricity generating methods. Concentrator photovoltaic (CPV) energy generation is one such renewable option available to government. CPV uses optic elements (such as lenses) to concentrate sunlight onto solar cells. Owing to the light being concentrated, the cells in CPV use less semiconductor material, which makes them more efficient in comparison to conventional photovoltaic (PV) cells. CPV is a technology that operates well in regions with high solar radiation. As such, South Africa is particularly well suited for this technology, with average solar radiation levels ranging from 4.5 to 6.5 05 ℎ/. CPV is also well suited for off-grid application, which addresses electricity demand in remote rural areas. This study is an economic project analysis of the installation, operation, maintenance, and decommissioning of CPV technology in a rural area in the Eastern Cape, South Africa. The study area chosen for this purpose is the Tyefu settlement in the Eastern Cape. Tyefu was deemed ideal for this type of analysis due to four characteristics. Firstly, Tyefu is a remote rural settlement at the end of the national grid. Secondly, the community is very poor and previously disadvantaged. Thirdly, many households are without Eskom generated electricity. Lastly, the study area is located in an area with ideal irradiance levels for CPV. Two methods of economic project analysis are applied to this case study, namely a costbenefit analysis (CBA) and a cost-effectiveness analysis (CEA). Additionally, two types of CBA are performed, namely a private CBA and a social CBA. The private CBA evaluates the Tyefu electrification project from a private investor's perspective and the social CBA evaluates the project from society's point of view. The CEAs carried out compare the costeffectiveness of the traditional PV technology to that of CPV in terms of private and social costs. The private costs and benefits of the CPV project were identified and valued in terms of market prices. Then, this cost benefit profile was used to calculate net benefits which in turn were discounted to present values using a private discount rate of 6.42 percent. Three decision making criteria were generated, namely the net present value (NPV), the internal rate of return (IRR) and the benefit cost ratio (BCR). Sensitivity analysis was carried out by varying the private discount rate and the bidding price. The social costs and benefits of the CPV project were identified and valued in terms of shadow prices. This cost benefit profile was used to calculate net benefits. The net benefits were discounted to present values using a composite social discount rate equal to 5.97 percent. The same decision making criteria used in the private CBA were used in the social CBA and a sensitivity analysis was completed by varying the social discount rate. In terms of the private CEA, the costs were identified and valued in terms of market prices. All costs were brought to present values using the private discount rate of 6.42 percent. In terms of the social CEA, the costs were identified and valued in terms of shadow prices. All costs were brought to present values using the social discount rate of 5.97 percent. The cost-effectiveness (CE) ratios calculated have identical denominators since the annual output for both technologies are identical - both CPV and PV systems deliver 30 300 kWh per annum. This output is based on the demand of the given case study. The private CBA showed unfavourable results. The private CBA has a NPV of R2 046 629.01, the IRR is undefined (this is due to no sign change being present in the cost benefit profile), and has a BCR of 0.365. However, the social CBA yielded positive results, with a NPV of R125 616.64, an IRR of 8 percent (which exceeds the social discount rate of 5.97 percent), and a BCR of 1.045. The CEA showed that the CPV is more cost-effective than the traditional PV both in terms of private and social costs. The private CE ratio of CPV is R4.23/kWh compared to PV's CE ratio of R4.39/kWh. Similarly, the social CE ratio of CPV is R3.51/kWh compared to PV's CE ratio of R3.69/kWh. CPV rollout appears to be socially efficient on a small scale according to the social CBA. Consequently, the CPV project is not seen as desirable in terms of the private CBA as the benefit (income received per kWh) in the private analysis is too small to outweigh the costs of implementing and running a CPV plant in Tyefu. On the other hand, a redeeming factor is that CPV may be feasible privately, for large scale applications. A major reason for the CPV project not being appealing to private investors is that the maximum bidding price of R2.85/kWh (as at August 2011) is not high enough for private investors to undertake the CPV project. The sensitivity analysis of the bidding price showed that the bidding price of R2.85/kWh needs to be increased in the range of 250 percent (R7.13/kWh) and 300 percent (R8.55/kWh) for a great enough incentive to exist for private investors. It is thus recommended that policymakers take this into consideration when formulating policy. In terms of the social CBA, it is recommended that government undertake CPV projects of this kind, as it will be a socially desirable allocation of resources. If government were to pursue these types of projects, it is recommended that CPV be implemented as it is more cost effective than PV.
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Oko, Eni. "Study of power plant, carbon capture and transport network through dynamic modelling and simulation". Thesis, University of Hull, 2015. http://hydra.hull.ac.uk/resources/hull:11315.
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The unfavourable role of CO₂ in stimulating climate change has generated concerns as CO₂ levels in the atmosphere continue to increase. As a result, it has been recommended that coal-fired power plants which are major CO₂ emitters should be operated with a carbon capture and storage (CCS) system to reduce CO₂ emission levels from the plant. Studies on CCS chain have been limited except a few high profile projects. Majority of previous studies focused on individual components of the CCS chain which are insufficient to understand how the components of the CCS chain interact dynamically during operation. In this thesis, model-based study of the CCS chain including coal-fired subcritical power plant, post-combustion CO₂ capture (PCC) and pipeline transport components is presented. The component models of the CCS chain are dynamic and were derived from first principles. A separate model involving only the drum-boiler of a typical coal-fired subcritical power plant was also developed using neural networks. The power plant model was validated at steady state conditions for different load levels (70-100%). Analysis with the power plant model show that load change by ramping cause less disturbance than step changes. Rate-based PCC model obtained from Lawal et al. (2010) was used in this thesis. The PCC model was subsequently simplified to reduce the CPU time requirement. The CPU time was reduced by about 60% after simplification and the predictions compared to the detailed model had less than 5% relative difference. The results show that the numerous non-linear algebraic equations and external property calls in the detailed model are the reason for the high CPU time requirement of the detailed PCC model. The pipeline model is distributed and includes elevation profile and heat transfer with the environment. The pipeline model was used to assess the planned Yorkshire and Humber CO₂ pipeline network. Analysis with the CCS chain model indicates that actual changes in CO₂ flowrate entering the pipeline transport system in response to small load changes (about 10%) is very small (<5%). It is therefore concluded that small changes in load will have minimal impact on the transport component of the CCS chain when the capture plant is PCC.
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Zeng, Shu. "Love, power and resistance : representations of Chinese-Caucasian romance in twentieth-century Anglophone literature". Thesis, University of Hull, 2015. http://hydra.hull.ac.uk/resources/hull:16430.
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This thesis has examined a body of Anglophone literature centred on Chinese-Caucasian romance across the twentieth century, a time when such interracial literature started to emerge in a wide range of genres. Aiming to map out the evolution of the representations of interracial alliances in the works of British and American writers, the thesis has incorporated literary texts published chronologically across the century. In analysing the primary texts within a socio-historical context and under the theoretical framework of Orientalism, the discursive writerly strategies deployed to represent the Chinese – the racial Other – have been investigated. Concurrently the discussions have gone beyond Orientalism through accentuating the pitfalls in the indiscriminate application of this approach. This thesis has also undertaken a comparative study of how Western writers and Western writers of Chinese ancestry represent the motif of Chinese-Caucasian romance differently, and how the cultural hybridity of the latter group has influenced their perceptions of the Chinese and complicated the boundary between the Self and the Other. This thesis has discovered that literary representations of successful interracial union were rare in the twentieth century. In order to sidestep the miscegenation laws or compromise the textual ambivalences regarding interracial relationships, most of the texts end with the death of the protagonists, the transformation of an interracial alliance into an intra-racial one, or the displacement of interracial love from the metropolitan West to the peripheral East. In addition, the Chinese characters are largely silenced and associated with darkness in literary works before the 1940s, while the works of the mid-twentieth century start to give centre stage to a Chinese presence. This study also gives prominence to the heterogeneity of literary texts, which suggests the possibility of intertextual dialogues through challenging the ‘Madame Butterfly’ or ‘white knight’ narratives. These counter-energies further contest the monolithic voice of the Orientalist discourse. By categorizing the primary texts, this thesis proposes two terms – manifest stereotyping (an uncontroversial negative representation of the Other) and latent stereotyping (a hidden or unconscious abstraction of the Other), which help draw attention to the problematics of intercultural representations.
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Mohamed, Ahmed A. S. Mr. "Bidirectional Electric Vehicles Service Integration in Smart Power Grid with Renewable Energy Resources". FIU Digital Commons, 2017. https://digitalcommons.fiu.edu/etd/3529.
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As electric vehicles (EVs) become more popular, the utility companies are forced to increase power generations in the grid. However, these EVs are capable of providing power to the grid to deliver different grid ancillary services in a concept known as vehicle-to-grid (V2G) and grid-to-vehicle (G2V), in which the EV can serve as a load or source at the same time. These services can provide more benefits when they are integrated with Photovoltaic (PV) generation. The proper modeling, design and control for the power conversion systems that provide the optimum integration among the EVs, PV generations and grid are investigated in this thesis.
The coupling between the PV generation and integration bus is accomplished through a unidirectional converter. Precise dynamic and small-signal models for the grid-connected PV power system are developed and utilized to predict the system’s performance during the different operating conditions. An advanced intelligent maximum power point tracker based on fuzzy logic control is developed and designed using a mix between the analytical model and genetic algorithm optimization.
The EV is connected to the integration bus through a bidirectional inductive wireless power transfer system (BIWPTS), which allows the EV to be charged and discharged wirelessly during the long-term parking, transient stops and movement. Accurate analytical and physics-based models for the BIWPTS are developed and utilized to forecast its performance, and novel practical limitations for the active and reactive power-flow during G2V and V2G operations are stated. A comparative and assessment analysis for the different compensation topologies in the symmetrical BIWPTS was performed based on analytical, simulation and experimental data. Also, a magnetic design optimization for the double-D power pad based on finite-element analysis is achieved. The nonlinearities in the BIWPTS due to the magnetic material and the high-frequency components are investigated rely on a physics-based co-simulation platform. Also, a novel two-layer predictive power-flow controller that manages the bidirectional power-flow between the EV and grid is developed, implemented and tested. In addition, the feasibility of deploying the quasi-dynamic wireless power transfer technology on the road to charge the EV during the transient stops at the traffic signals is proven.
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Chan, Kan-kam y 陳根錦. "Disablement, power resources and powerlessness of silicotic patients in Hong Kong". Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1994. http://hub.hku.hk/bib/B31249644.
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Kim, Youngjin Ph D. Massachusetts Institute of Technology. "Active power ancillary service provision of commercial building energy storage resources". Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/101571.
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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2015.Cataloged from PDF version of thesis.
Includes bibliographical references.
The aim of this thesis is to propose new control strategies of building energy storage systems and analyze their effects on operations of power grids and electricity markets. Specifically, novel control schemes of plug-in electric vehicles (PEVs) and variable speed heat pumps (VSHPs) are proposed to improve grid frequency regulation (GFR) and day-ahead (DA) electricity market clearing. The feasibility and effectiveness of the proposed control methods are evaluated using small-signal analysis, simulation case studies, and experimental verifications. An alternative power system for commercial buildings is designed using steady-state and dynamic models of power converters and corresponding controllers. A dynamic model of a VSHP is also presented for real-time simulation studies, while considering the operational characteristics such as the heat rate and coefficient of performance. Using the simulated models, new GFR schemes of PEVs and VSHPs, responding to direct load control (DLC) signals, are proposed and analyzed. First, a small-signal analysis is carried out using transfer functions that represent the aggregated dynamic responses of generators and DLC-enabled PEVs and VSHPs. The closed-loop properties of the proposed GFR scheme are then analyzed using Bode and pole-zero plots. Simulation case studies are then performed using a test grid with various penetrations of PEVs and VSHPs that respond to primary (PFC) and secondary frequency control (SFC) signals. The test grid is implemented using an experimental laboratory-scale microgrid, and its control centers communicate with the hardware units to provide real-time control. In addition, a closed-loop model of an independent system operator (ISO) and a commercial building aggregator (CBA) is presented where the CBA determines optimal energy consumption and reserve deployment of VSHPs and PEVs in response to locational marginal prices (LMPs), while satisfying distribution network (DN) operational constraints. DA market clearing and price-based demand response (DR) are modeled with stochastic optimization problems. Simulated case studies are then performed to estimate variation in the operational costs of the ISO and the CBA, as well as in the LMPs under various conditions, as determined by the temperature control methods, the building energy storage resource penetrations, and the DN operational constraints.
by Youngjin Kim.
Ph. D.
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Davis, Peter. "Power-resources and social policy in Bangladesh : a life-history perspective". Thesis, University of Bath, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.423490.
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This is a study of social welfare and ill-fare in Bangladesh. The overarching thesis can be summarised as follows: Informal forms of social protection playa vital role in protecting the poor in Bangladesh during times of crisis, making the 'welfare regime' in Bangladesh distinct from welfare systems described in social policy studies of welfare states. In order to understand the role of this social protection within the 'welfare regime' of Bangladesh in a holistic way, both macro and micro-level research approaches were followed. The macro-level study provided a landscape view of the range of the more formal and sectored basis of the welfare mix, and macro-trends in welfare outcomes, such as aggregate poverty or inequality. However, a more balanced picture is obtained when the actions and trajectories of poor people are examined at the micro-level. Using life stories to uncover these complex micro-level realities, I examined how particular episodes of crisis, coping and opportunity tend to have disproportionate consequential importance in the life trajectories of poor people in Bangladesh. The research shows that a better understanding of people's own interpretations of their behaviour during these critical episodes would help analysts and policy makers to more clearly recognise causes of impoverishment, the structured violence people face in their everyday lives and the way that formal and informal channels of 'social protection' succeed or fail to mitigate these crises. These patterns are 'structured' because the distribution of 'powerresources' in communities is affected by, and affects, both patterns of crisis and the workings of (formal and informal) social protection. The formulation and analysis of social policy in such contexts can be better informed by exploring the way micro-level social realities are linked to wider social structures. This thesis explores these linkages and aims to inform further research and policy aimed at improving both the formal and informal social protection of the vulnerable in developing contexts.
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Chan, Kan-kam. "Disablement, power resources and powerlessness of silicotic patients in Hong Kong /". Hong Kong : University of Hong Kong, 1994. http://sunzi.lib.hku.hk/hkuto/record.jsp?B13990974.
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Sayed, Ahmed [Verfasser]. "Reliability analysis of power systems with variable renewable resources / Ahmed Sayed". München : GRIN Verlag, 2020. http://d-nb.info/1217713468/34.
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Adams, Rebecca Clark White. "School system merger: A study of power and redistribution of resources". W&M ScholarWorks, 1992. https://scholarworks.wm.edu/etd/1539618699.
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The purpose of this study was to examine the merger of the school systems of the City of South Norfolk and Norfolk County in the State of Virginia. The merger of these two geographical entitites was consummated on January 1, 1963. Norfolk County was formed in 1636 by the Virginia General Assembly. The cities of Norfolk, Portsmouth, and South Norfolk were carved from this county. A series of annexations by these cities between 1940 and 1960 cost Norfolk County thirty-three square miles of territory, 110,000 residents, and {dollar}1,881,000 in revenue.;In order to protect its viability, Norfolk County voted to merge with the small City of South Norfolk. The City of Chesapeake was formed. Since schools were a major issue during the pre-merger campaign, this study examined the merger of the two school systems with primary emphasis on the control of power and the distribution of resources for facilities in the newly formed city.;The research data included primary and secondary sources in the areas of documents, newspapers, oral history, quantitative records, historical texts, and relics. A number of major figures in the school system of that period were available for personal interviews.;The hypothesis that resources for facilities were distributed equitably to the former South Norfolk and Norfolk County areas was accepted. Equitable did not mean equal since South Norfolk schools were in much greater physical need at the time of the 1963 merger. Therefore, the new Chesapeake School Board provided a larger share of the 1963 bond revenues and other fiscal resources to the former South Norfolk schools.;The hypothesis that the power in the newly merged Chesapeake School System was unevenly controlled by former Norfolk County leaders and residents was accepted. While it is fair to conclude from a review of School Board minutes, newspapers, periodicals, and interviews that former Norfolk County leaders and residents controlled decisionmaking through the Chesapeake School Board and major central office leadership roles, there was no indication that this power was used unjustly. Research into sources of the period and extensive interviews indicated that the leaders genuinely wanted the best for the new school system.;The issues of power and distribution of resources examined in this dissertation must be considered in any merger of school systems. Research into other school system mergers would advance this study.
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Goetze, Tara C. Feit Harvey A. "Muddy waters: conservation discourse and the politics of power in marine park co-management in Belize /". *McMaster only, 2005.
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Defne, Zafer. "Multi-criteria assessment of wave and tidal power along the Atlantic coast of the southeastern USA". Diss., Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/33864.
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The increasing demand for energy and the increased depletion rate of nonrenewable energy resources call for research on renewable alternatives. Mapping the availability of these resources is an important step for development of energy conversion projects. For this purpose, the wave power potential along the Atlantic coast of the southeastern USA, and the tidal stream power along the coast of Georgia are investigated in this study. Wave power potential is studied in an area bounded by latitudes 27 N and 38 N and longitudes 82 W and 72 W (i.e. North Carolina, South Carolina, Georgia, and northern Florida). The available data from National Data Buoy Center wave stations in the given area are examined. Power calculated from hourly significant wave heights and average wave periods is compared to power calculated using spectral wave energy density. The mean power within 50 km of the shore is determined to be low, whereas higher power is available further offshore beyond the 3500 m contour line. The tidal stream power potential along the coast of the state of Georgia is evaluated based on the NOAA tidal predictions for maximum tidal currents and three dimensional numerical modeling of the currents with Regional Ocean Modeling System (ROMS). The modeling results are validated against the available measurements. This region has low to moderate average tidal currents along most of the coast, but with the possibility of very strong local currents within its complex network of tidal rivers and inlets between barrier islands. Tidal stream power extraction is simulated with a momentum sink in the numerical models at the estuary scale to investigate effect of power extraction on the estuarine hydrodynamics. It is found that different power extraction schemes might have counterintuitive effects on the estuarial hydrodynamics and the extraction efficiency. A multi-criteria method that accounts for the physical, environmental and socioeconomic constraints for tidal power conversion schemes is proposed to select favorable locations and to rank them according to their suitability. For this purpose, the model results are incorporated into a Geographical Information System (GIS) database together with other geospatial datasets relevant to the site selection methodology. The methodology is applied to the Georgia coast and the candidate areas with potential are marked.
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Eppinger, Crystal. "Impact Analysis of Increased Dispatchable Resources on a Utility Feeder in OpenDSS". PDXScholar, 2017. https://pdxscholar.library.pdx.edu/open_access_etds/4000.
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Oregon utilities are replacing their portfolios of traditional fossil fuel generation with renewable generating sources. Stepping away from carbon-producing energy will leave a deficit of on-demand power, resulting in decreased reliability. To overcome these technical challenges, utilities must maximize the use of their present dispatchable resources. One such resource is the Portland General Electric (PGE) Dispatchable Standby Generation Program (DSG), which is an aggregated 105 MWs of distributed generation (DG). These resources are brought on-line when there is a critical need for power. Resources are added to the program if a transfer trip scheme is in place or a modeling study reveals that the feeder load is at least three times the generator capacity. If the load-to-capacity ratio were lower, more assets could be added to the DSG program.
To investigate the impacts of lowering the DG load-to-capacity ratio on existing distribution feeders, we use Open-Source Distribution System Simulator (OpenDSS). We modeled the Oxford Rural feeder by converting a utility CYME database to instantiation files using several MATLAB programs. A MATLAB control program varies the load-to-capacity ratio of the OpenDSS feeder model and monitors the generator behavior immediately following a fault. We analyzed the results to determine the ideal load-to-capacity ratio that prevents unintentional islanding. The results show that the instantaneous (50) relay element settings dictate both the minimum load-to-capacity ratio and the maximum DG capacity. The present three-to-one ratio is very conservative and can be reduced.
Additional dispatchable resources include a five MW battery-inverter system currently used as grid-back up. The battery is grid-tied to a 12.4 kV feeder making it an ideal candidate for conservation voltage reduction (CVR). Using the same feeder model, we investigated the effects of lowering the system voltage to the allowable minimum using injections of reactive power. A lower system voltage reduces the load at peak times. Conversely, increasing the voltage prevents generation conflicts. To determine the benefit of CVR by VAr-injection on the Oxford Rural feeder, we created a MATLAB optimization program to output the optimal feeder voltage for reduced system power. We use a Simulink feedback model to determine the appropriate reactive power needed to achieve the voltage change. We analyze the system model to reveal that the feeder is ideal for CVR but the system capacity must be increased to achieve the maximum power reduction.
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Vakilian, Hassan. "The impact of the Iranian Constitution on the law making power of the parliament (Majlis)". Thesis, University of Hull, 2008. http://hydra.hull.ac.uk/resources/hull:5539.
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In this research the law making power of the Iranian parliament is studied at two levels: Firstly, the power of the parliament according to the Constitution is explored. Secondly its power in real politics is analysed. It is shown that the law making power of the parliament as an elected institution can be limited by the unelected institutions which are enshrined in the Constitution. Also the political composition of the elected institutions (parliament and executive) whether they are Conservative-dominated or Reformist-dominated, can define the actual law making power of the parliament. It is concluded that the law making power of the parliament oscillates on a spectrum: at one end there is a weak law making legislature and at the other end one can see a policy influencing legislature. The main content of the chapters is as follows: The first chapter is dedicated to introduction where the research questions and thesis methodology is explained. In the second chapter the most important literature, especially that which considers the external and internal variables and typology of legislatures, is reviewed. In the third chapter the historical evolution of the Iranian Parliament in the Qajar, First and Second Pahlavi Eras is briefly discussed. The fourth chapter is dedicated to the Iranian parliament in the Islamic Republic Era. The key concepts which can explain the logic of the distribution of power within the Iranian Constitution, the relationship of the parliament to the executive power (elected institution) and other power centres ( unelected institutions), and the type of the political regime on the basis of the amended Constitution of 1989, is explained. Theoretical propositions are tested in chapter five. The Sixth and Seventh terms of the parliament, where the political composition changed fundamentally from one to the other, are chosen for case study and their law making power during the budget process analysed. The dichotomy of elected and unelected institutions is applied to the case in this chapter. Then the contribution of the elected and unelected institutions during the budget process is explained. The next part of this chapter considers the Sixth Majlis and its political context in general. The Majlis and executive interactions and the interaction of these two elected institutions with the Guardian Council and Expediency Council especially during the budget process, are analysed. The same approach is deployed for the Seventh Majlis which in terms of political composition was in stark contrast to the Sixth Majlis. It is shown how the political composition of the elected and unelected institutions can increase or decrease considerably the law making power of the Islamic Consultative Assembly. The overall conclusion of the thesis is provided in chapter six.
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Alhadar, Ibrahim. "'Moral discipline', state power and surveillance : the rise and operation of CCTV surveillance in Riyadh". Thesis, University of Hull, 2010. http://hydra.hull.ac.uk/resources/hull:8978.
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The employment of CCTV in contemporary control policy has produced various perspectives and debates in an attempt to understand this phenomenon. In non-western countries, however, there has to date been no academic writing on the topic of CCTV. This thesis aims to make a contribution to these debates by exploring this trend in Saudi Arabia (S.A.) by asking how the rise and use of CCTV cameras fits in with the existing theoretical literature. Moreover, this research seeks to identify and define the structure and operational practices within CCTV sites. With the introduction of CCTV in the process of social control, the research explores its mechanisms by outlining how operators and surveillance technology are organized to meet the requirements and the criteria of those parties who implement surveillance, and thereby to contribute to a better understanding of the employment of CCTV cameras in the Saudi context. It is argued that the employment of CCTV and its rise are attributable mainly to the aspiration of central political control, which has been shaped and formed by cultural values that are dominant in the Saudi society. Triangulation of research methods was adopted by using three instruments: documentary sources, observation and semi-structured interview. The findings show the dominance of the central structure of gaze in the current surveillance practices. Although the contemporary surveillance is carried out by various actors, the decentralized surveillance structure is reassembled by state authority for the purpose of strengthening the political control of the state. Moreover, due to the social and cultural characteristics of the Saudi society, the operation of CCTV and the process of targeting are shaped by moral principles and cultural values. Significantly, the present study emphasizes the persistence of 'moral surveillance' in both the operators‟ attitudes towards targeting and the operational process of CCTV cameras in public settings.
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Gilliom, Jonathan. "Simulation and performance of a high frequency cycloconverter". Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2006. http://library.nps.navy.mil/uhtbin/hyperion/06Jun%5FGilliom.pdf.
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Thesis (M.S. in Electrical Engineering)--Naval Postgraduate School, June 2006.Thesis Advisor(s): Robert W. Ashton. "June 2006." Includes bibliographical references (p. 99-100). Also available in print.
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Carr, Daniel. "Non-intrusive load monitoring with canopy clustering". Thesis, University of South Wales, 2012. https://pure.southwales.ac.uk/en/studentthesis/nonintrusive-load-monitoring-with-canopy-clustering(14629d2f-4fdf-47c0-aa3e-9cb7924ce5df).html.
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Dwindling fossil fuels and the rising price of energy has meant that attitudes towards energy usage have changed in both domestic and commercial settings. This change in attitude has led to the development of smart metering technologies that are currently being rolled out across the world. The research has been developed to be able to add functionality to smart metering devices by providing information about energy usage within the premises through Non-Intrusive Load Monitoring (NILM). The thesis provides a detailed description of the work undertaken to develop a novel method of load disaggregation within NILM to aid in the monitoring of energy usage and the provision of consumer feedback which can be integrated into smart metering technologies. The research aims to provide a novel approach to NILM through the use of canopy clustering for its main process of load disaggregation. Canopy clustering provides the necessary tools for separating out appliances and groups of appliances for later classification into individual loads, which brings many benefits compared to other technologies. The research methodology has been developed with robust techniques of data gathering, model development and validation through a rigorous testing approach. Real world examples of loads have been used for the creation and development of the models. The use of contemporary appliances within the research has meant that the NILM algorithm developed is current and usable. In the final implementation it could be commercialised for use by the general public. The full procedures of the algorithm have been explained in detail with the addition of information on the final classification methods that could be used when implemented within smart metering devices. Further work and improvements to the research have also been included for consideration.
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Roy, Jyotirmoy. "Effects of ancillary service markets on frequency and voltage control performance of deregulated power systems". Online access for everyone, 2007. http://www.dissertations.wsu.edu/Thesis/Fall2007/j_roy_112607.pdf.
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Redburn, Rachel. "A tall tower wind investigation of northwest Missouri". Diss., Columbia, Mo. : University of Missouri-Columbia, 2007. http://hdl.handle.net/10355/5108.
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Thesis (M.S.)--University of Missouri-Columbia, 2007.The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file (viewed on January 8, 2008) Includes bibliographical references.
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Goossens, Victoria. "Power, stakeholders and the theory of planned behaviour : understanding stakeholder engagement in an English seaside context". Thesis, University of Hull, 2011. http://hydra.hull.ac.uk/resources/hull:5770.
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In destination development and planning literature much emphasis has been placed upon structural and geographical interpretations of how destinations can be viewed. There is a lack of attention to agency and stakeholder perspectives in destination development and planning. This research has sought to address this gap by focusing upon stakeholder power and engagement with tourism policy development in an English seaside context. Not only is the English seaside context important conceptually, practical connotations are also evident, particularly following the disbanding of the Regional Development Agencies in the summer of 2010 and the impact this has had on tourism organisation in Britain. The research objectives of this study focus upon compiling a conceptual framework which draws upon how power can be used in an enabling and not constraining fashion as an empowerment of people, by focusing on key concepts in stakeholder theory literature. The aim is to provide an alternative to a purely structural and geographical interpretation of the organisation of tourism policy, by focusing on agency and structure, as well as utilising the theory of planned behaviour in determining stakeholder engagement with tourism policy development. This research contributes to the stakeholder theory literature, particularly in defining the power of a stakeholder and how this can help address stakeholder engagement in tourism policy development. In addition contributions are made to the literature on English seaside tourism in utilising insights from the literature on power, structure and agency and stakeholder theory. From a methodological perspective a mixed method research approach has been adopted to add to the emerging qualitative research in the tourism literature in gaining rich contextual insights to the research problem.
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Cook, Larry Jonathan. "Totally Asymmetric Simple Exclusion Processes with Finite Resources". Diss., Virginia Tech, 2009. http://hdl.handle.net/10919/30121.
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In many situations in the world, the amount of resources available for use is limited. This statement is especially true in the cells of living organisms. During the translation process in protein synthesis, ribosomes move along the mRNA strand constructing proteins based on the sequence of codons that form a gene. The totally asymmetric simple exclusion process (TASEP) models well the translation process. However, these genes are constantly competing for ribosomes and other resources in the cell. To see how finite resources and competition affects such a system, we must construct a simple model to account for the limited resources.
We consider coupling multiple TASEPs to a finite reservoir of particles where the entry rate of particles into the TASEPs depends on the number of particles left in the reservoir. Starting with a single TASEP connected to the reservoir, we study the system using both Monte Carlo simulations and theoretical approaches. We explore how the average overall density, density profile, and current change as a function of the number of particles initially in the reservoir for various parameters. New features arise not seen in the ordinary TASEP model, even for a single TASEP connected to the pool of particles. These features include a localized shock in the density profile. To explain what is seen in the simulations, we use an appropriately generalized version of a domain wall theory.
The dynamics of the TASEPs with finite resources are also studied through the power spectra associated with the total particle occupancy of each TASEP and the reservoir. Again, we find new phenomena not seen in the power spectrum of the ordinary TASEP. For a single constrained TASEP, we find a suppression at low frequencies when compared to the power spectrum of the ordinary TASEP. The severity of this suppression is found to depend on how the entry rate changes with respect to the number of particles in the pool. For two TASEPs of different lengths, we find an enhancement of the power spectrum of the smaller TASEP when compared to the ordinary TASEP's power spectrum. We explain these findings using a linearized Langevin equation.
Finally, we model competition between ten genes found in Escherichia coli using a modified version of the TASEP. This modified version includes extended objects and inhomogeneous internal hopping rates. We use the insight gained from the previous studies of finite resources and competition as well as other studies to gain some insight into how competition affects protein production.Ph. D.
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Stellmann, Lars. "Germany's energy demand and supply until 2020 : implications for Germany's foreign energy policy". Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2003. http://library.nps.navy.mil/uhtbin/hyperion-image/03Jun%5FStellmann.pdf.
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Thesis (M.A. in National Security Affairs)--Naval Postgraduate School, June 2003.Thesis advisor(s): Robert E. Looney, Maria Rasmussen. Includes bibliographical references (p. 55-57). Also available online.
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Baroudi, Sarra. "Auditor selection of negotiation strategies : the effect of motivational factors and bargaining power under a throughput model". Thesis, University of Hull, 2016. http://hydra.hull.ac.uk/resources/hull:15673.
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Motivational factors and bargaining power have been recognized by scholars and practitioners alike, as important elements for negotiation strategies. However, there has been little effort to date to empirically or theoretically study the effect of these factors in the context of auditor-client negotiation while adopting a decision-making process framework. We present a Throughput Model framework that describes the decision-making process of auditors when they make decisions about negotiation strategies. The model depicts how (a) perception of motivational factors and (b) bargaining power affect the choice of negotiation strategy and identifies different pathways auditors use in their decision about negotiation strategies. In our experiment, we manipulate engagement risk perception, client pressure, corporate mechanisms strength as well as financial information. We. investigate their effects on auditor decision making about the likelihood of accepting client's management alternative and on the negotiation strategies choice. We find that only engagement risk perception influences auditor's propensity to accept aggressive accounting treatments of the client. This in turn influences the use of all the negotiation strategies. On the other hand, client pressure only has effect on compromising strategies while bargaining power influences the concessionary strategy of auditors. Moreover, two dominant decision making pathways are used by auditors, i.e. P→J→D and P→D.
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Sterrett, Isaiah Zachary. "The Pied Piper in Power: Ideological Resources and the Authoritarian Youth Group". Thesis, Boston College, 2012. http://hdl.handle.net/2345/2893.
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Thesis advisor: Gerald M. EasterThesis advisor: Jonathan Laurence
How do authoritarian states attempt to acquire ideological resources vis-à-vis their youth populations? This thesis demonstrates that one way in which these states attempt to do so is by way of an institution I call the authoritarian youth group (AYG). Examples of AYG treated in the paper include the Hitler Jugend in Nazi Germany; the VLKSM or Komsomol in the U.S.S.R.; and Nashi ("Ours") in post-Communist Russia. Primarily on the basis of secondary-source material, I argue that, across cases, governors of authoritarian states create and maintain AYG primarily in order to curry ideological resources among young people. In particular, states use AYG principally in order to legitimate the nation-state by espousing particular national narratives and lionizing the state; to promote among young people a sense of national homogeneity; to propagate particular mores related to gender, family, sex, and sexuality; and to affect the formation of a loyal elite for the state's future. The paper aims to contribute to the comparative-politics subfield by enhancing scholars' knowledge of authoritarian governance, ideological resources in authoritarian contexts, and, most importantly, the relationship between the authoritarian state and young people
Thesis (MA) — Boston College, 2012
Submitted to: Boston College. Graduate School of Arts and Sciences
Discipline: Political Science
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Ölçer, Dilan. "Purchasing power : the political economics of authoritarianism, natural resources, and budget cycles". Paris, Institut d'études politiques, 2013. http://www.theses.fr/2013IEPP0028.
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Cette thèse de doctorat en économie politique se compose de trois chapitres indépendants qui enquêtent sur les différents aspects de l’interaction entre l’allocation des ressources publiques et le résultat économique. Bien que la volonté d’acquérir et de conserver le pouvoir politique figure centralement dans chacun des trois chapitres, les environnements institutionnels et les questions abordés varient. Le premier chapitre pose, Quels outils fiscaux utilisent les dirigeants politiques pour améliorer leurs chances de rester au pouvoir dans les pays à faible revenu, et comment les utilisent-ils? Le deuxième chapitre pose, Est-ce que les électeurs dans les États Unis d’Amerique récompense différemment de des dépenses publique lorsque les ressources de l’Etat s’appuient fortement sur les revenus pétroliers? Enfin, le troisiéme chapitre demande, Quelle dynamique de croissance économique peut-on attendre d’un pays où le leader autoritaire, dont la survie au pouvoir dépend de la proportion de la population le soutient, fait le compromis entre investir dans son propre support ou dans le prospérité économique future du pays?This PhD dissertation in political economics consists of three independent papers that investigate different aspects of the interaction between public resource allocation and economic outcome. While the willingness to acquire and maintain political power figures centrally in each of the three papers, the institutional environments and the questions addressed vary. The first paper asks, What fiscal tools do political leaders use to improve their chances of remaining in power in low-income countries, and how do they use them? The second paper asks, Do voters in the American states reward spending growth differently when the state resources rely heavily on oil revenues? Finally, the third paper asks, What economic growth dynamics may we expect from a country where the authoritarian leader, whose survival in power depends on the share of the population supporting him, makes the trade-off between investing in his own support or in the nation’s future economic prosperity?