Dissertations / Theses: 'Utility analysis'

1

Russell, Alexander George. "An analysis of non-utility generation alternatives." Thesis, Virginia Tech, 1990. http://hdl.handle.net/10919/42063.

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Interest in BiCMOS technology has been generated recently due to the potential advantages this technology offers over conventional CMOS which enjoys widespread use in today’s semiconductor industry. However, before BiCMOS can be readily adopted by the VLSI community, an understanding of the design issues and tradeoffs involved when utilizing it, must be achieved. The principal focus of this research is to move towards such an understanding through the means of analytical modeling and circuit simulation using PSPICE [1]. The device chosen for the modeling approach is the basic BiCMOS Inverting Buffer Driver. The model yields equations that characterize output rise and fall transients and quantify the delays incurred therein. At the end of the analysis, we have a composite set of delay equations that are a measure of the total gate delay and reflect the importance of individual device and circuit parameters in determining this delay. Further investigations conducted to determine the influence of device, circuit and process parameters on BiCMOS, indicate that this technology is far more resilient to variations in such parameters than CMOS. At the end of this research, we are able to make a definitive judgement about BiCMOS performance and its superiority over CMOS in the switching speed domain.
Master of Science

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2

Percale, E. U. "Power utility systems modelling and performance analysis." Diss., University of Pretoria, 1990. http://hdl.handle.net/2263/40209.

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Any business striving to improve its productivity, must first establish and practise at all levels a universal method for measurement and analysis of its performance. A prerequisite for any analysis, is an appropriate definition of the system which is to be analysed. The rationale and derivation process for such system definition, is termed "modelling", and its product a "model". Deterministic Productivity Accounting (DPA), is a comparative analysis method for business performance. It is based on the premise that business performance is primarily determined by resource management, and measured in terms of productivity. By judicious partitioning and modelling of the business systems, and careful counting and accounting for every variance component, one traces the driving causes behind the apparent performance. This work combiaes modelling of power utility systems with the application of DPA, into an integrated method for performance measurement and analysis within a power utiljty, especially in a power station.
Dissertation (MEng)--University of Pretoria, 1990.
gm2014
Industrial and Systems Engineering
unrestricted

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3

Eyiah-Donkor, Emmanuel. "Horizon-unbiased Utility of Wealth and Consumption." Thesis, Uppsala universitet, Analys och tillämpad matematik, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-180929.

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4

Becherer, Dirk. "Rational hedging and valuation with utility based preferences." [S.l.] : [s.n.], 2001. http://deposit.ddb.de/cgi-bin/dokserv?idn=963013270.

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5

Shang, Z. "Analysis and optimisation of total site utility systems." Thesis, University of Manchester, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.566228.

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6

Vanhook, Patricia M. "Cost-Utility Analysis/Cost Effectiveness of Nursing Care." Digital Commons @ East Tennessee State University, 2015. https://dc.etsu.edu/etsu-works/7432.

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7

XU, NUO. "MULTIPLE ATTRIBUTE UTILITY ANALYSIS IN SETUP PLAN EVALUATION." University of Cincinnati / OhioLINK, 2003. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1069776252.

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8

Taylor, Matthew J. "Experimental insights to improve utility measurement for use in cost-utility analysis of health care provision." Thesis, University of Newcastle Upon Tyne, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.432516.

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9

Veltkamp, David James. "Energy dependent ion scattering spectroscopy : a chemometric study of its analytical utility /." Thesis, Connect to this title online; UW restricted, 1986. http://hdl.handle.net/1773/8584.

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10

Quartetti, Douglas A. "A Monte Carlo assessment of estimation in utility analysis." Diss., Georgia Institute of Technology, 1996. http://hdl.handle.net/1853/29371.

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11

Sundgren, David. "Distribution of expected utility in second-order decision analysis." Licentiate thesis, Kista : Data- och systemvetenskap, Kungliga Tekniska högskolan, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4442.

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12

Clinefelter, Terry Lee. "Feasibility analysis of utility scale wind power generation systems." [Gainesville, Fla.] : University of Florida, 2009. http://purl.fcla.edu/fcla/etd/UFE0024964.

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13

Ham, Hyeongpil. "Structure analysis of a nuclear utility model for policymakers." Thesis, Massachusetts Institute of Technology, 1996. http://hdl.handle.net/1721.1/10983.

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14

Baier, Christel, Philipp Chrszon, Clemens Dubslaff, Joachim Klein, and Sascha Klüppelholz. "Energy-Utility Analysis of Probabilistic Systems with Exogenous Coordination." Springer, 2018. https://tud.qucosa.de/id/qucosa%3A70851.

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We present an extension of the popular probabilistic model checker PRISM with multi-actions that enables the modeling of complex coordination between stochastic components in an exogenous manner. This is supported by tooling that allows the use of the exogenous coordination language Reo for specifying the coordination glue code. The tool provides an automatic compilation feature for translating a Reo network of channels into PRISM's guarded command language. Additionally, the tool supports the translation of reward monitoring components that can be attached to the Reo network to assign rewards or cost to activity within the coordination network. The semantics of the translated model is then based on weighted Markov decision processes that yield the basis, e.g., for a quantitative analysis using PRISM. Feasibility of the approach is shown by a quantitative analysis of an energy-aware network system example modeled with a role-based modeling approach in Reo.

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15

Flory, Long Mrs. "A WEB PERSONALIZATION ARTIFACT FOR UTILITY-SENSITIVE REVIEW ANALYSIS." VCU Scholars Compass, 2015. http://scholarscompass.vcu.edu/etd/3739.

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Online customer reviews are web content voluntarily posted by the users of a product (e.g. camera) or service (e.g. hotel) to express their opinions about the product or service. Online reviews are important resources for businesses and consumers. This dissertation focuses on the important consumer concern of review utility, i.e., the helpfulness or usefulness of online reviews to inform consumer purchase decisions. Review utility concerns consumers since not all online reviews are useful or helpful. And, the quantity of the online reviews of a product/service tends to be very large. Manual assessment of review utility is not only time consuming but also information overloading. To address this issue, review helpfulness research (RHR) has become a very active research stream dedicated to study utility-sensitive review analysis (USRA) techniques for automating review utility assessment. Unfortunately, prior RHR solution is inadequate. RHR researchers call for more suitable USRA approaches. Our current research responds to this urgent call by addressing the research problem: What is an adequate USRA approach? We address this problem by offering novel Design Science (DS) artifacts for personalized USRA (PUSRA). Our proposed solution extends not only RHR research but also web personalization research (WPR), which studies web-based solutions for personalized web provision. We have evaluated the proposed solution by applying three evaluation methods: analytical, descriptive, and experimental. The evaluations corroborate the practical efficacy of our proposed solution. This research contributes what we believe (1) the first DS artifacts to the knowledge body of RHR and WPR, and (2) the first PUSRA contribution to USRA practice. Moreover, we consider our evaluations of the proposed solution the first comprehensive assessment of USRA solutions. In addition, this research contributes to the advancement of decision support research and practice. The proposed solution is a web-based decision support artifact with the capability to substantially improve accurate personalized webpage provision. Also, website designers can apply our research solution to transform their works fundamentally. Such transformation can add substantial value to businesses.

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16

Auld, Sally Mackinnal. "Privatisation, regulation and exclusion : a theoretical analysis." Thesis, University of Oxford, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.365547.

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17

Suksiriserekul, Somchai. "The cost-utility analysis of some Thai public health programmes." Thesis, University of York, 1994. http://etheses.whiterose.ac.uk/9822/.

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18

Cardell, Judith Bernitt. "Renewable energy technologies : analysis and policy tools for utility integration." Thesis, Massachusetts Institute of Technology, 1994. http://hdl.handle.net/1721.1/34046.

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Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1994.
Includes bibliographical references (p. 143-150).
by Judith Bernitt Cardell.
M.S.

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19

Capser, Shawn Patrick Capser. "Assessing the Value of Information for ComparingMultiple, Dependent Design Alternatives." University of Toledo / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1520689318651851.

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20

Knapp, Jaclyn King. "Brief Application of Contingent Reversals: Treatment Utility in Increasing Appropriate Classroom Behaviors." DigitalCommons@USU, 2009. https://digitalcommons.usu.edu/etd/259.

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Identifying positive behavioral interventions for students who display disruptive behavior in the classroom has become a critical issue for schools due to the high frequency of these behaviors and recent changes in legislative requirements. To address this issue, the present study investigated the utility of brief experimental analysis approach as a means to identify the most efficient and effective interventions for three students displaying problem behaviors in the classroom. By using a multi-element design, the brief experimental analysis was conducted by randomly applying interventions for three common functions of problem behavior in the classroom: teacher attention, peer attention, and escape from task demand. Then, the effects of the most efficient and effective intervention on on-task, disruptive, and work completion behaviors were compared relative to a baseline condition over time. There were individual differences in responses to the intervention, but all students responded to at least one treatment. Further, an extended analysis of the alternative baseline conditions using a BAB design was applied that included a treatment phase with the hypothesized efficient and effective treatment and a baseline phase. Results showed that selected interventions decreased disruptive behavior and increased on-task and work completion for all three participants over time relative to baseline.

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21

Imbeah, William Kweku Ansah. "Assessment of the effectiveness of the advanced programmatic risk analysis and management model (apram) as a decision support tool for construction projects." Texas A&M University, 2003. http://hdl.handle.net/1969.1/5813.

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Construction projects are complicated and fraught with so many risks that many projects are unable to meet pre-defined project objectives. Managers of construction projects require decision support tools that can be used to identify, analyze and implement measures that can mitigate the effects of project risks. Several risk analysis techniques have been developed over the years to enable construction project managers to make useful decisions that can improve the chances of project success. These risk analysis techniques however fail to simultaneously address risks relating to cost, schedule and quality. Also, construction projects may have scarce resources and construction managers still bear the responsibility of ensuring that project goals are met. Certain projects require trade-offs between technical and managerial risks and managers need tools that can help them do this. This thesis evaluates the usefulness of the Advanced Programmatic Risk Analysis and Management Model (APRAM) as a decision support tool for managing construction projects. The development of a visitor center in Midland, Texas was used as a case study for this research. The case study involved the implementation of APRAM during the concept phase of project development to determine the best construction system that can minimize the expected cost of failure. A risk analysis performed using a more standard approach yielded an expected cost of failure that is almost eight times the expected cost of failure yielded by APRAM. This study concludes that APRAM is a risk analysis technique that can minimize the expected costs of failure by integrating project risks of time, budget and quality through the allocation of resources. APRAM can also be useful for making construction management decisions. All identified component or material configurations for each alternative system however, should be analyzed instead of analyzing only the lowest cost alternative for each system as proposed by the original APRAM model. In addition, it is not possible to use decision trees to determine the optimal allocation of management reserves that would mitigate managerial problems during construction projects. Furthermore, APRAM does not address the issue of safety during construction and assumes all identifiable risks can be handled with money.

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22

James, Theresa. "FAILING YET AGAIN TO IMPRESS: RECRUITMENT UTILITY ANALYSIS - AN INNOVATION IMPLEMENTATION." Thesis, Stockholm University, Department of Psychology, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-40284.

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The research area of recruitment utility analysis (RUA) models has

been somewhat unexplored for decades, and has earlier been reduced

to simplified mathematic formulas measuring only dollar term value.

The need for more dynamic models and theories surrounding the area

has been voiced numerous times, yet little has been done. The purpose

of this study was to highlight this need to encourage to further

research, and to examine the managerial perspective on RUA from a

semi explorative perspective. Eight interviews were conducted where

the managers received questions concerning the recruitment process

and the method used to conduct RUA. The results of this study

indicate somewhat unimpressed attitudes toward the added value of

conducting RUA. The reasons for not conducting

RUA were found to be due to time constraint, lack of skills and

managerial support. The majority of the RUA was found to be reactive

and based on gut feeling implying a need for proactive RUA hence

ensuring the value of the recruitment process.

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23

Huint, Philip. "Managers' reactions to transfer intervention type and information about utility analysis." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ39085.pdf.

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Schumann, Reiner Andreas. "Roll control and rollover analysis for a jeep-type utility vehicle." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2002. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp05/NQ63454.pdf.

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25

Riposo, David. "Integrated energy and environmental analysis of utility-scale wind power production." College Park, Md.: University of Maryland, 2008. http://hdl.handle.net/1903/8598.

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Thesis (M.S.) -- University of Maryland, College Park, 2008.
Thesis research directed by: Marine, Estuarine, Environmental Sciences Graduate Program. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.

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26

Thurston, Deborah Lee. "Multiattribute utility analysis of materials selection decisions by Deborah Lee Thurston." Thesis, Massachusetts Institute of Technology, 1987. http://hdl.handle.net/1721.1/14810.

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27

Field, Frank Remsen. "Application of multi-attribute utility analysis to problems in materials selection." Thesis, Massachusetts Institute of Technology, 1985. http://hdl.handle.net/1721.1/15275.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Material Science and Engineering, 1985.
MICROFICHE COPY AVAILABLE IN ARCHIVES AND SCIENCE.
Vita.
Bibliography: leaves 208-229.
by Frank Remsen Field III.
Ph.D.

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28

Kea, Kandace. "An Analysis of Trends in U.S. Stormater Utility and Fee Systems." Thesis, Virginia Tech, 2015. http://hdl.handle.net/10919/53704.

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Many municipalities have established stormwater user fees (SUFs), commonly known as stormwater utilities, to raise revenue for stormwater management programs, however little is known about the trends among the fees currently in existence. This research observes trends in the establishment, type and magnitude of user fees by analyzing location, population density, home value, and establishment for a comprehensive national stormwater user fee database with data for 1,490 user fees. The Equivalent Residential Unit (ERU), a SUF that charges based on impervious area, was the most prevalent fee type in all NOAA Climate regions of the U.S. except the West and West North Central. The Tier system, a SUF that charges differently for properties by defined categories, was the second most prevalent in all regions except the East North Central and West North Central. The ERU was found in larger cities with high population densities whereas flat fees, SUFs that charge a single rate for all properties, were found in smaller towns. Higher home values led to higher monthly fees for 28% of the municipalities analyzed. The Residential Equivalence Factor (REF), a SUF that charges based on runoff produced, was popular in municipalities with higher home values and the flat fee was popular in those with lower home values. The number of SUFs established increased near Phase I MS4 permit and Phase II small MS4 permit deadlines.
Master of Science

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29

Al-Hussaini, Abdulrahman. "The utility of complex soil reflectance image properties for soil mapping." Thesis, Manchester Metropolitan University, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.299213.

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30

Aouni, Jihane. "Utility-based optimization of phase II / phase III clinical development." Thesis, Montpellier, 2019. http://www.theses.fr/2019MONTS032/document.

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Le développement majeur de la thèse a été consacré au problème d’optimisation du choix de dose dans les essais de recherche de dose, en phase II. Nous avons considéré ce problème sous l’angle des fonctions d’utilité. Nous avons alloué une valeur d’utilité aux doses, le problème pour le sponsor étant de trouver la meilleure dose, c’est-à-dire celle dont l’utilité est la plus élevée.Dans ce travail, nous nous sommes limités à une seule fonction d’utilité, intégrant deux composantes: une composante liée à l’efficacité (la POS=puissance d’un essai de phase III de 1000 patients de cette dose contre placebo) et une autre liée à la safety. Pour cette dernière, nous avons choisi de la caractériser par la probabilité prédictive d’observer un taux de toxicité inférieur ou égal à un certain seuil (que nous avons fixé à 0.15) en phase III (toujours pour un essai de 1000 patients au total). Cette approche a l’avantage d’être similaire aux concepts utilisés dans les essais de phase I en oncologie qui ont notamment pour objectif la recherche de la dose liée à une toxicité limite (notion de ”Dose limiting Toxicity”).Nous avons retenu une approche bayésienne pour l’analyse des données de la phase II.Mis à part les avantages théoriques connus de l’approche bayésienne par rapport à l’approche fréquentiste (respect du principe de vraisemblance, dépendance moins grande aux résultats asymptotiques, robustesse), nous avons choisi l’approche bayésienne pour plusieurs raisons:• Combinant, par définition même de l’approche bayésienne, une information a priori avec les données disponibles, elle offre un cadre plus flexible la prise de décision du sponsor: lui permettant notamment d’intégrer de manière plus ou moins explicite les informations dont il dispose en dehors de l’essai de la phase II.• L’approche bayésienne autorise une plus grande flexibilité dans la formalisation des règles de décision.Nous avons étudié les propriétés des règles de décisions par simulation d’essais de phase II de différentes tailles: 250, 500 et 1000 patients. Pour ces deux derniers design nous avons aussi évalué l’intérêt de d’effectuer une analyse intermédiaire lorsque la moitié des patients a été enrôlée (c’est-à-dire avec respectivement les premiers 250 et 500 patients inclus). Le but était alors d’évaluer si, pour les essais de phase II de plus grande taille, s’autoriser la possibilité de choisir la dose au milieu de l’étude et de poursuivre l’étude jusqu’au bout si l’analyse intermédiaire n’est pas concluante permettait de réduire la taille de l’essai de phase II tout en préservant la pertinence du choix de dose final
The main development of the thesis was devoted to the problem of dose choice optimization in dose-finding trials, in phase II. We have considered this problem from the perspective of utility functions. We have allocated a utility value to the doses itself, knowing that the sponsor’s problem was now to find the best dose, that is to say, the one having the highest utility. We have limited ourselves to a single utility function, integrating two components: an efficacy-related component (the PoS = the power of a phase III trial - with 1000 patients - of this dose versus placebo) and a safety-related component. For the latter, we chose to characterize it by the predictive probability of observing a toxicity rate lower or equal to a given threshold (that we set to 0.15) in phase III (still for a trial of 1000 patients in total). This approach has the advantage of being similar to the concepts used in phase I trials in Oncology, which particularly aim to find the dose related to a limiting toxicity (notion of "Dose limiting Toxicity").We have adopted a Bayesian approach for the analysis of phase II data. Apart from the known theoretical advantages of the Bayesian approach compared with the frequentist approach (respect of the likelihood principle, less dependency on asymptotic results, robustness), we chose this approach for several reasons:• It provides a more flexible framework for the decision-making of the sponsor because it offers the possibility to combine (by definition of the Bayesian approach) a priori information with the available data: in particular, it offers the possibility to integrate, more or less explicitly, the information available outside the phase II trial.• The Bayesian approach allows greater flexibility in the formalization of the decision rules.We studied the properties of decision rules by simulating phase II trials of different sizes: 250, 500 and 1000 patients. For the last two designs (500 and 1000 patients in phase II), we have also evaluated the interest of performing an interim analysis when half of the patients are enrolled (i.e. with the first 250and the first 500 patients included respectively). The purpose was then to evaluate whether or not, for larger phase II trials, allowing the possibility of choosing the dose in the middle of the study and continuing the study to the end if the interim analysis is not conclusive, could reduce the size of the phase II trial while preserving the relevance of the final dose choice

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Sobolewska, Katarzyna-Ewa. "Web links utility assessment using data mining techniques." Thesis, Blekinge Tekniska Högskola, Avdelningen för programvarusystem, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-2936.

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This paper is focusing on the data mining solutions for the WWW, specifically how it can be used for the hyperlinks evaluation. We are focusing on the hyperlinks used in the web sites systems and on the problem which consider evaluation of its utility. Since hyperlinks reflect relation to other webpage one can expect that there exist way to verify if users follow desired navigation paths. The Challenge is to use available techniques to discover usage behavior patterns and interpret them. We have evaluated hyperlinks of the selected pages from www.bth.se web site. By using web expert’s help the usefulness of the data mining as the assessment basis was validated. The outcome of the research shows that data mining gives decision support for the changes in the web site navigational structure.
akasha.kate@gmail.com

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32

Dawes, Sharron Elizabeth. "Examining the utility of a clustering method for analysing psychological test data." University of Southern Queensland, Faculty of Sciences, 2004. http://eprints.usq.edu.au/archive/00001419/.

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The belief that certain disorders will produce specific patterns of cognitive strengths and weaknesses on psychological testing is pervasive and entrenched in the area of clinical neuropsychology, both with respect to expectations regarding the behaviour of individuals and clinical groups. However, there is little support in the literature for such a belief. To the contrary, studies examining patterns of cognitive performance in different clinical samples without exception find more than one pattern of test scores. Lange (2000) in his comprehensive analysis of WAIS-R/WMS-R data for a large sample of mixed clinical cases found that three to five profiles described variations in test performances within clinical diagnoses. Lange went on to show that these profiles occurred with approximately equal frequency in all diagnostic groups. He additionally found four profiles in an exploratory analysis of WAIS-III/WMS-III data from a similar sample. The goals of the current dissertation were to: a) replicate Lange’s findings in a larger clinical sample; b) extend the scope of these findings to a wider array of psychological tests; and c) develop a method to classify individual cases in terms of their psychological test profile. The first study assessed 849 cases with a variety of neurological and psychiatric diagnoses using hierarchical cluster and K-Means analysis. Four WAIS-III/WMS-III profiles were identified that included approximately equal numbers of cases from the sample. Two of these profiles were uniquely related to two of Lange’s profiles, while the remaining two demonstrated relationships with more than one of Lange’s clusters. The second study expanded the neuropsychological test battery employed in the analysis to include the Trail Making Test, Boston Naming Test, Wisconsin Card Sorting Test, Controlled Oral Word Association Test, and Word Lists from the WMS-III reducing the number of clinical cases to 420. In order to compensate for the impact of the reduced number of cases and increased number of variables on potential cluster stability, the number of test score variables was reduced using factor analysis. In this manner the 22 variables were reduced to six factor scores, which were then analysed with hierarchical cluster and K-Means analysis yielding five cognitive profiles. The third study examined the potential clinical utility of the five cognitive profiles by developing a single case methodology for allocating individual cases to cognitive profiles. This was achieved using a combination of a multivariate outlier statistic, the Mahalanobis Distance, and equations derived from a discriminant function analysis. This combination resulted in classification accuracies exceeding 88% when predicting the profile membership based upon the K-Means analysis. The potential utility of this method was illustrated with three age-, education-, gender-, and diagnostically-matched cases that demonstrated different cognitive test profiles. The implications of the small number of cognitive profiles that characterise test performance in a diverse sample of neurological and psychiatric cases as well as the clinical utility of an accurate classification method at the individual case level was discussed. The role of such a classification system in the design of individualised rehabilitation programmes was also highlighted. This research raises the intriguing possibility of developing a typology based on human behaviour rather than a medical nosology. In effect, replacing the medical diagnosis so ill-suited to encompassing the complexities of human behaviour, with a more appropriate “psychological diagnosis” based on cognitive test performance.

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Wright, Robert L. "Multi-attribute utility analysis using the Mark Johnson model in defense contracting." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1995. http://handle.dtic.mil/100.2/ADA300830.

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Cromartie, Marcus J. "Analysis of the ongoing process for privatizing utility systems in the Navy." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2000. http://handle.dtic.mil/100.2/ADA381196.

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Thesis (M.S. in Management)--Naval Postgraduate School, June 2000.
Thesis advisors: Eaton, Donald R. ; Snider, Keith F. "June 2000." Includes bibliographical references (p. 75-77). Also available online.

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35

Sill, Justin H. "Modeling, testing, and analysis of on-center handling for sport utility vehicles." Connect to this title online, 2006. http://etd.lib.clemson.edu/documents/1171039364/.

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Ault, Graham W. "A planning and analysis framework for evaluating distributed generation and utility strategies." Thesis, University of Strathclyde, 2000. http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=21142.

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The numbers of smaller scale distributed power generation units connected to the distribution networks of electricity utilities in the UK and elsewhere have grown significantly in recent years. Numerous economic and political drivers have stimulated this growth and continue to provide the environment for future growth in distributed generation. The simple fact that distributed generation is independent from the distribution utility complicates planning and operational tasks for the distribution network. The uncertainty relating to the number, location and type of distributed generating units to connect to the distribution network in the future makes distribution planning a particularly difficult activity. This thesis concerns the problem of distribution network and business planning in the era of distributed generation. A distributed generation strategic analysis framework is proposed to provide the required analytical capability and planning and decision making framework to enable distribution utilities to deal effectively with the challenges and opportunities presented to them by distributed generation. The distributed generation strategic analysis framework is based on the best features of modem planning and decision making methodologies and facilitates scenario based analysis across many utility strategic options and uncertainties. Case studies are presented and assessed to clearly illustrate the potential benefits of such an approach to distributed generation planning in the UK electricity supply industry.

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Dankyi, Daniel K. "Analysis of life insurance lapses and utility-maximization of shareholders' expected profit." Thesis, City University London, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.367262.

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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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Vanhook, Patricia M. "Cost-Utility Analysis: A Method of Quantifying the Value of Registered Nurses." Digital Commons @ East Tennessee State University, 2007. https://dc.etsu.edu/etsu-works/7454.

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Cost-utility analysis is one method of determining the cost effectiveness of nursing interventions. It is heralded by the World Health Organization as the measure to determine allocation of resources. This method of measurement includes calculation of both the cost of quality-adjusted life years (QALY) and the cost of disability-adjusted life years (DALY). The purpose of this article is to present cost-utility analysis as a relevant measure for describing the value of registered nurses. First the article will present a short overview of cost effectiveness, along with a discussion of two cost-effectiveness measures, cost-effective analysis and cost-utility analysis. Then the measurement of quality-adjusted life years and disability-adjusted life years will be presented. The article will conclude by challenging nurses to develop cost-utility analyses into a meaningful and useful methodology that can provide nursing with a process to measure the economic outcomes of our nursing interventions.

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Johnson, Benjamin D. "Application of systems engineering principles for analysis of utility baseline development process." Thesis, California State University, Long Beach, 2017. http://pqdtopen.proquest.com/#viewpdf?dispub=10252428.

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There is a need in the energy services industry for companies to accurately estimate and verify energy savings. This starts with the accurate development of a utility baseline. Systems Engineering principles can be used to determine the optimal method to use for developing a utility baseline. Several Systems Engineering tools were used in this thesis, including a stakeholder analysis, needs and requirements files, requirements traceability, functional flow block diagrams, a work breakdown structure, trade studies, and verification and validation of requirements. These tools helped to identify three main components of the process for further analysis. The trade study was then used to determine the best way to address these components of the process, and resulted in innovative methods that had not previously been considered. The recommendations in this work will benefit both the energy services company and their customers.

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Goodwin, Kathryn Lynn, and Kathryn Lynn Goodwin. "Analysis of the utility of remote sensing data for urban hydrologic modeling." Thesis, The University of Arizona, 1999. http://hdl.handle.net/10150/626837.

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In this thesis analysis, a methodology is presented for evaluating uncertainty m hydrologic predictions that are based on remote sensing data for parameter estimation. The methodology is applied to the HEC-1 model for a highly developed basin in Scottsdale, Arizona to compare three remote sensing data sources; NSOO 1, Landsat, and SPOT. Hydrologic parameters are estimated using the three remote sensing data sources and the uncertainty in those estimates is determined by a procedure incorporating three sources of uncertainty; image misclassification, error in parameter assignments for a particular landuse class, and aggregation of image pixels to subbasins. The parameter uncertainty is then propagated to model output uncertainty by several different uncertainty analysis methods in order to assess the accuracy of methods more efficient than Monte Carlo Simulation. The results of the analysis were compared for (1) the remote sensing images (2) the different sources of uncertainty in each image, (3) two uncertain parameters, and ( 4) the different uncertainty analysis methods. The results showed that spatial and spectral image resolution was important in identifying model parameters and in the prediction of peak flow.

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Donnelly, Laura Ferri. "Capturing utility judgments across jobs: toward understanding and generalization." Diss., Virginia Polytechnic Institute and State University, 1985. http://hdl.handle.net/10919/54285.

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The recent increase in utility research has provided improved methods for estimating the standard deviation of performance in dollars. Subjective estimates of an individual's overall worth to the organization allow the utility of various organizational interventions to be evaluated. However, this research does little to illuminate the dimensions underlying supervisory judgments of utility. The recent increase in utility research has provided improved methods for estimating the standard deviation of performance in dollars. Subjective estimates of an individual's overall worth to the organization allow the utility of various organizational interventions to be evaluated. However, this research does little to illuminate the dimensions underlying supervisory judgments of utility. The policies underlying judgments of overall worth were captured to a substantial degree, with cross-validated R² values ranging from .46 to .69. A unit weighting scheme was applied to the six predictors, resulting in r² values that exceeded the cross-validated R² derived from regression analyses. This substantial predictability of utility judgments provided the capacity to generalize utility information from a sample of jobs to the population of interest. Analyses comparing validity-based and utility-based clustering schemes explored the degree of convergence between the two approaches to classifying jobs. These analyses indicated that there was some overlap, with validity information being useful in establishing broad categories of jobs associated with similar utility-relevant attributes. At the same time, these analyses demonstrated that the two approaches were not equivalent. Implications of this research are discussed, and several possible directions for future research are noted. It is suggested that such policy capturing procedures can enhance our understanding of judgments of overall worth, and expand the knowledge base upon which organizational decisions are made.
Ph. D.

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Akol, Doris. "Assessing the utility of environmental impact assessments as a strategy for global sustainable development." Thesis, McGill University, 2001. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=33050.

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This thesis discusses the role of Environmental Impact Assessments in the implementation of the concept of sustainable development within the realm of North-South tensions regarding responsibilities for environmental conservation. Environmental Impact Assessments provide opportunities for realizing sustainable development not only because they operationalize the integration principle of sustainable development by facilitating the equilibrium between development and environmental conservation objectives, essential for ecological sustainability, but also because, in allowing for public participation in the assessment process, they promote the realization of the civil right of participation in public affairs, an essential component of good governance required for sustainable development to thrive. However, the thesis scrutinizes the reality in developing countries of adopting Environmental Impact Assessments. They are not yet accorded a lot of value because it is foreign technology imported from the North, which must be adopted often as a conditionality to that much needed development assistance, which often does not take into account cultural realities in developing countries and which inadvertently plays a role in the growth of Third World debt, corruption and erosion of sovereignty in the Third World. It argues, therefore that the utility of Environmental Impact Assessment in the realization of global sustainable development is limited by the existence of these realities unless modifications are made in the implementation of Environmental Impact Assessments in developing countries.

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Stephen, Cynthia. "Impediments to Effective Safety Risk Assessment of Safety Critical Systems: An Insight into SRM Processes and Expert Aggregation." Thesis, Virginia Tech, 2020. http://hdl.handle.net/10919/99144.

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Safety risk assessment forms an integral part of the design and development of Safety Critical Systems. Conventionally in these systems, standards and policies have been developed to prescribe processes for safety risk assessment. These standards provide guidelines, references and structure to personnel involved in the risk assessment process. However, in some of these standards, the prescribed methods for safety decision making were found to be deficient in some respects. Two such deficiencies have been addressed in this thesis. First, when different safety metrics are required to be combined for a safety related decision, the current practices of using safety risk matrices were found to be inconsistent with the axioms of decision theory. Second, in the safety risk assessment process, when multiple experts are consulted to provide their judgment on the severity and/or likelihood of hazards, the standards were lacking detailed guidelines for aggregating experts' judgements. Such deficiencies could lead to misconceptions pertaining to the safety risk level of critical hazards. These misconceptions potentially give rise to inconsistent safety decisions that might ultimately result in catastrophic outcomes. This thesis addresses both these concerns present in SRM processes. For the problem of combining safety metrics, three potential approaches have been proposed. Normative Decision Analysis tools such as Utility Theory and Multi-attribute Utility Theory were proposed in the first and second approaches. The third approach proposes the use of a Multi-Objective Optimization technique - Pareto Analysis. For problems in Expert Aggregation, behavioral and mathematical solutions have been explored and the implications of using these methods for Safety Risk Assessment have been discussed. Two standard documents that contain the Safety Risk Management Processes of the Federal Aviation Agency (FAA) and the U.S. Navy were used to structure the case studies. This thesis has two main contributions. First, it evaluates the use of decision analysis in safety decision process of Safety Critical Systems. It provides guidelines to decision makers on how to meaningfully use and/or combine different safety metrics in the decision process. Second, it identifies the best practices and methods of aggregating expert assessments pertaining to safety decision making.
Master of Science
Safety risk assessment forms an important part of the design and development of Safety Critical Systems. Safety Critical Systems are those systems whose failure could potentially result in the loss of human life. Commonly in these systems, standards and policies have been developed to prescribe processes for safety risk assessment. These standards provide guidelines, references and structure to personnel involved in the risk assessment process. However, in some of these standards, the prescribed methods for safety decision making were found to be deficient in some respects. Two such deficiencies have been addressed in this thesis. First, when different safety metrics are required to be combined to provide information for a safety related decision, the current practices of the safety risk assessment do not yield consistent recommendations. Second, in the safety risk assessment process, often multiple experts are consulted to provide their judgment on the criticality of a potential safety risk of the system. The standards and policies that are currently being used, do not provide clear instructions on how to synthesize the judgements of multiple experts. This lack of clear guidelines could potentially lead to an incorrect final judgement on the criticality of the risk and ultimately result in choosing an improper method to reduce the safety risk. This thesis addresses both these concerns present in safety risk assessment process of Safety Critical Systems. For the problem of combining safety metrics, three approaches have been proposed. Two of the proposed approaches make use of normative decision analysis practices and therefore the recommendations reached using these methods will be consistent with the safety objective of the decision maker. The third approach makes use of a traditional concept called -Pareto Analysis which provides a visual method to analyze the advantages and drawbacks of a given safety concern for a system. For problems in combining the judgements of multiple experts a variety of methods was studied. The methods include group consensus and mathematical techniques and the implications of using these methods in safety risk assessment was discussed. The FAA and the U.S. Navy's standard documents and policies were used to frame the discussions. This thesis has two main contributions. First, it evaluates the use of Normative Decision Analysis methods in safety decision process of Safety Critical Systems. It provides guidelines to decision makers on how to meaningfully use and/or combine different safety metrics in the decision process. Second, it identifies the best practices and methods of aggregating expert assessments pertaining to safety decision making.

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Foote, Andrew UNSW. "The treatment of urinary incontinence : cost utility analysis and quality of life benefits." Awarded by:University of New South Wales, 2003. http://handle.unsw.edu.au/1959.4/20855.

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Aims: The aim of this thesis was to identify the most cost effective urogynaecological treatment from a range of five standard therapies of 217 female patients, and to test the hypothesis that the conservative treatment of urinary incontinence was more cost effective than surgical or pharmacological interventions, using the cost per Quality Adjusted Life Year (QALY) as a common assessment. Methods: The first step in this process was to determine whether a generic cost effectiveness instrument, the York Quality of Life Questionnaire was sufficiently sensitive to allow its use in the field of urogynaecology. The York Questionnaire was compared with several other quality of life questionnaires and outcome measures that have been previously utilised in urinary incontinence, and was found to be equally sensitive in detecting change in quality of life as a result of treatment. The next step was to measure the costs required to produce this change in quality of life and to calculate the QALY's for five urogynaecological treatments in three prospective trials comprising of: a randomised trial of Nurse Continence Advisor versus Urogynaecologist conservative treatment of urinary incontinence (n=143), a prospective trial of laparoscopic versus open colposuspension (n=62), and the pharmacological treatment of detrusor instability (n=12). Costs assessed included consultation fees, investigations, theatre costs, hospital stay, patient time off work & travel expenses, and reduction in protective pad costs. Results: The cost/QALY for 5 years as a result of each of the five treatments varied from $28,009 for the Nurse Continence Advisor conservative treatment to $134,069 for the open colposuspension treatment. Conclusions: This finding suggests that the conservative treatment of urinary incontinence is the most cost effective, and should be utilised as the first form of treatment. As a consequence, financial resources would be more efficiently utilised in the conservative treatment of urinary incontinence, such as increasing the availability of services offered by Nurse Continence Advisors and physiotherapists.

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Mitton, Craig. "A cost-utility analysis of pacemakers for the treatment of neurally mediated syncope." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape17/PQDD_0007/MQ34979.pdf.

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Jayaweera, Asanka. "Energy Analysis & Effects on Power Utility of LED's compared to Conventional Bulbs." Thesis, Högskolan i Gävle, Avdelningen för bygg- energi- och miljöteknik, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-19222.

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Huang, Zhengli. "Privacy and utility analysis of the randomization approach in Privacy-Preserving Data Publishing." Related electronic resource: Current Research at SU : database of SU dissertations, recent titles available full text, 2008. http://wwwlib.umi.com/cr/syr/main.

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Edwige, Stéphie. "Modal analysis and flow control for drag reduction on a Sport Utility Vehicle." Thesis, Paris, CNAM, 2019. http://www.theses.fr/2019CNAM1233/document.

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L’industrie automobile fournie de plus en plus d’effort pour optimiser l’aérodynamique externe des véhicules afin de réduire son empreinte écologique. Dans ce cadre, l’objectif de ce projet est d’examiner les structures tourbillonnaires responsables de la dégradation de traînée et de proposer une solution de contrôle actif permettant d’améliorer l’efficacité aérodynamique d’un véhicule SUV. Après une étude expérimentale de la maquette POSUV échelle réduite, une analyse modale croisée permet d’identifier les structures périodiques corrélées de l’écoulement qui pilotent la dépression sur le hayon. Une solution de contrôle optimale par jets pulsés sur le parechoc arrière, est obtenue avec un algorithme génétique. Celle-ci permet de réduire la dépression du hayon de 20% et l’analyse croisée des résultats instationnaires avec contrôle montre un changement significatif de la distribution spectrale. Après deux études préliminaires sur la rampe inclinée à 25° et sur le Corps d’Ahmed à 47°, la simulation de POSUV à partir d’un solveur LES, en éléments finis, est validé par rapport aux résultats expérimentaux. L’approfondissement des résultats 3D permet de comprendre les pertes aérodynamiques. La simulation de l’écoulement contrôlé permet également d’identifier les mécanismes du contrôle d’écoulements
The automotive industry dedicates a lot of effort to improve the aerodynamical performances of road vehicles in order to reduce its carbon footprint. In this context, the target of the present work is to analyze the origin of aerodynamic losses on a reduced scale generic Sport Utility Vehicle and to achieve a drag reduction using an active flow control strategy. After an experimental characterization of the flow past the POSUV, a cross-modal DMD analysis is used to identify the correlated periodical features responsible for the tailgate pressure loss. Thanks to a genetic algorithm procedure, 20% gain on the tailgate pressure is obtained with optimal pulsed blowing jets on the rear bumper. The same cross-modal methodology allows to improve our understanding of the actuation mechanism. After a preliminary study of the 25° inclined ramp and of the Ahmed Body computations, the numerical simulation of the POSUV is corroborated with experiments using the cross-modal method. Deeper investigations on the three-dimensional flow characteristics explain more accurately the wake flow behavior. Finally, the controlled flow simulations propose additional insights on the actuation mechanisms allowing to reduce the aerodynamic losses

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Fleming, Eric Anthony. "Energy Analysis & Utility Cost Mitigation With Storage for Commercial Buildings in California." Digital Commons at Loyola Marymount University and Loyola Law School, 2012. https://digitalcommons.lmu.edu/etd/41.

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While on a great precipice of emerging energy technologies, it is necessary to understand how these technologies are most effectively integrated into current end-user systems. At the moment, 36% of California’s energy consumption is demanded from the commercial buildings sector. This report investigates the nature of energy with the state of California through various sources and analysis techniques. Using specific weather and commercial building data, this paper also focuses on the analysis of Commercial Building energy demand modeling for the state’s sixteen weather zones. It is modeled using the Department of Energy’s tool: EnergyPlus and analysis is performed with R and MATLAB data manipulation software. R is utilized for clustering similar demand signal features for the set of demand profiles. MATLAB is utilized for electric cost savings, based on various applicable utility tariffs, using arbitrary storage apparatuses with variable size and efficiency. It was found that savings could be maximized by complex yet adaptive control algorithms and precisely sized apparatuses per building type/location. Electric Utility Providers can simplify the potential solution to energy storage with electricity tariffs, whilst eliminating statewide need for load following and peak power production.

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Dissertations / Theses on the topic 'Utility analysis'

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