Dissertations / Theses: 'Guaranteed provision of a resource'

1

Мордвінцева, Ірина Олександрівна. "Моделювання в САПР нестаціонарних термічних навантажень та ресурсної міцності поршнів швидкохідних дизелів." Thesis, Національний технічний університет "Харківський політехнічний інститут", 2018. http://repository.kpi.kharkov.ua/handle/KhPI-Press/40132.

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Дисертація на здобуття наукового ступеня кандидата технічних наук зі спеціальності 05.05.03 – двигуни та енергетичні установки. – Національний технічний університет "Харківський політехнічний інститут". –Харків, 2018. Дисертація присвячена моделюванню в САПР нестаціонарних термічних навантажень та ресурсної міцності поршнів швидкохідних дизелів. З'ясовано, що для моделювання температурного стану поршня в перехідних процесах дизеля необхідно застосування нестаціонарних моделей експлуатації. При цьому, при завданні граничних умов необхідно мати дані щодо функцій керування, які враховують час перехідного процесу. Визначено допустимі спрощення завдання ГУ в характерних зонах поршня при розрахунках температурного та термонапруженого стану поршня на стаціонарних та в перехідних процесах дизеля. Їх використання дозволяє скоротити час проектування без порушення концепції гарантованого забезпечення ресурсу кромки КЗ на початкових етапах застосування САПР. Проведено експериментальне дослідження з визначення температурного стану поршня для дизеля 4ЧН12/14 в перехідних процесах дизеля. За даними дослідження визначені функції керування для кожного перехідного процесу. Запропоновано комплекс математичних моделей для визначення температурного та термонапруженого стану поршня в перехідних процесах дизеля. Для цього визначені рівняння функцій керування ГУ для ділянок першого та другого ПК. При спрощені ГУ достовірність результатів запропоновано встановлювати за показником відносного розрахункового збільшення ресурсу. За результатами досліджень встановлено вплив запізнення в часі ступінчастої зміни ГУ 3-го роду поршня в перехідному процесі дизеля на ресурсну міцність кромки КЗ. Означений захід дає змогу підвищити ефективність САПР на стаціонарних та нестаціонарних навантаженнях та при виконанні оцінки ресурсної міцності поршнів. Запропоновані нові конструкції поршнів з порожнинами масляного охолодження.
Thesis for the science degree of the Candidate of technical sciences by specialіty 05.05.03 – engines and power plants. – National Technical University "Kharkov polytechnic institute", Kharkov, 2018. The thesis is devoted to modeling in CAD of non-stationary thermal stresses and resource durability of pistons of high-speed diesel engines. The dissertation is devoted to the modeling of non-stationary thermal loads and resource strength of high-speed diesels in CAD. It has been found that for modeling the thermal state of the piston in the transient processes diesel, it is necessary to use non-stationary models of operation. In this case, when the boundary conditions are imposed, it is necessary to have data on control functions that including the time of the transition process. The allowable simplifications of the border conditions problem in the characteristic zones of the piston in the calculations of the thermal and thermo-stressed state of the piston on the stationary and in the transient processes of the diesel load are determined. Their use allows to shorten the design time without violating the concept of guaranteed maintenance of the resource of the edge of the combustion chamber in the initial stages of CAD application. An experimental study was conducted to determine the thermal of a piston for a 4CHN12/14 diesel engine in transient diesel processes. According to the study, control functions are defined for each transient process. A complex of mathematical models for the determination of the thermal and thermo-stressed state of the piston in the transient processes of the diesel is proposed. With simplified border conditions, the reliability of the results proposed to set the indicator of the relative estimated increase in the resource. According to the results of the research, the effect of the shift in time of the step change of the BC of the 3rd kind of a piston in the transient process of the diesel engine on the resource strength of the edge of the combustion chamber is established. This measure allows to increase the efficiency of CAD on stationary and non-stationary loads and when performing the evaluation of the resource strength of the pistons. New designs of pistons with oil-cooling cavities are proposed.

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2

Мордвінцева, Ірина Олександрівна. "Моделювання в САПР нестаціонарних термічних навантажень та ресурсної міцності поршнів швидкохідних дизелів." Thesis, Національний технічний університет "Харківський політехнічний інститут", 2019. http://repository.kpi.kharkov.ua/handle/KhPI-Press/40129.

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Дисертація на здобуття наукового ступеня кандидата технічних наук зі спеціальності 05.05.03 – двигуни та енергетичні установки. – Національний технічний університет "Харківський політехнічний інститут". –Харків, 2018. Дисертація присвячена моделюванню в САПР нестаціонарних термічних навантажень та ресурсної міцності поршнів швидкохідних дизелів. З'ясовано, що для моделювання температурного стану поршня в перехідних процесах дизеля необхідно застосування нестаціонарних моделей експлуатації. При цьому, при завданні граничних умов необхідно мати дані щодо функцій керування, які враховують час перехідного процесу. Визначено допустимі спрощення завдання ГУ в характерних зонах поршня при розрахунках температурного та термонапруженого стану поршня на стаціонарних та в перехідних процесах дизеля. Їх використання дозволяє скоротити час проектування без порушення концепції гарантованого забезпечення ресурсу кромки КЗ на початкових етапах застосування САПР. Проведено експериментальне дослідження з визначення температурного стану поршня для дизеля 4ЧН12/14 в перехідних процесах дизеля. За даними дослідження визначені функції керування для кожного перехідного процесу. Запропоновано комплекс математичних моделей для визначення температурного та термонапруженого стану поршня в перехідних процесах дизеля. Для цього визначені рівняння функцій керування ГУ для ділянок першого та другого ПК. При спрощені ГУ достовірність результатів запропоновано встановлювати за показником відносного розрахункового збільшення ресурсу. За результатами досліджень встановлено вплив запізнення в часі ступінчастої зміни ГУ 3-го роду поршня в перехідному процесі дизеля на ресурсну міцність кромки КЗ. Означений захід дає змогу підвищити ефективність САПР на стаціонарних та нестаціонарних навантаженнях та при виконанні оцінки ресурсної міцності поршнів. Запропоновані нові конструкції поршнів з порожнинами масляного охолодження.
Thesis for the science degree of the Candidate of technical sciences by specialіty 05.05.03 – engines and power plants. – National Technical University "Kharkov polytechnic institute", Kharkov, 2018. The thesis is devoted to modeling in CAD of non-stationary thermal stresses and resource durability of pistons of high-speed diesel engines. The dissertation is devoted to the modeling of non-stationary thermal loads and resource strength of high-speed diesels in CAD. It has been found that for modeling the thermal state of the piston in the transient processes diesel, it is necessary to use non-stationary models of operation. In this case, when the boundary conditions are imposed, it is necessary to have data on control functions that including the time of the transition process. The allowable simplifications of the border conditions problem in the characteristic zones of the piston in the calculations of the thermal and thermo-stressed state of the piston on the stationary and in the transient processes of the diesel load are determined. Their use allows to shorten the design time without violating the concept of guaranteed maintenance of the resource of the edge of the combustion chamber in the initial stages of CAD application. An experimental study was conducted to determine the thermal of a piston for a 4CHN12/14 diesel engine in transient diesel processes. According to the study, control functions are defined for each transient process. A complex of mathematical models for the determination of the thermal and thermo-stressed state of the piston in the transient processes of the diesel is proposed. With simplified border conditions, the reliability of the results proposed to set the indicator of the relative estimated increase in the resource. According to the results of the research, the effect of the shift in time of the step change of the BC of the 3rd kind of a piston in the transient process of the diesel engine on the resource strength of the edge of the combustion chamber is established. This measure allows to increase the efficiency of CAD on stationary and non-stationary loads and when performing the evaluation of the resource strength of the pistons. New designs of pistons with oil-cooling cavities are proposed.

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3

Görtzen, Simon [Verfasser]. "Performance-Guaranteed Resource Allocation in Wireless Communication Systems / Simon Görtzen." Aachen : Shaker, 2015. http://d-nb.info/106904413X/34.

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4

Muhs, Tammy Marie Poitras. "Modeling mass care resource provision post hurricane." Doctoral diss., University of Central Florida, 2011. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/4810.

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Determining the amount of resources needed, specifically food and water, following a hurricane is not a straightforward task. Through this research effort, an estimating tool was developed that takes into account key demographic and evacuation behavioral effects, as well as hurricane storm specifics to estimate the number of meals required for the first fourteen days following a hurricane making landfall in the State of Florida. The Excel based estimating tool was created using data collected from four hurricanes making landfall in Florida during 2004-2005. The underlying model used in the tool is a Regression Decision Tree with predictor variables including direct impact, poverty level, and hurricane impact score. The hurricane impact score is a hurricane classification system resulting from this research that includes hurricane category, intensity, wind field size, and landfall location. The direct path of a hurricane, a higher than average proportion of residents below the poverty level, and the hurricane impact score were all found to have an effect on the number of meals required during the first fourteen days following a hurricane making landfall in the State of Florida.
ID: 030646208; System requirements: World Wide Web browser and PDF reader.; Mode of access: World Wide Web.; Thesis (Ph.D.)--University of Central Florida, 2011.; Includes bibliographical references (p. 155-171).
Ph.D.
Doctorate
Psychology
Sciences
Modeling and Simulation

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5

Proctor, Stephen W. "Resource provision in object oriented distributed systems." Thesis, University of Edinburgh, 1989. http://hdl.handle.net/1842/12803.

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Using objects to structure distributed systems is becoming an increasingly popular paradigm. This thesis examines some of the fundamental problems associated with resource provision in such systems. A conceptual framework for the work is created by the development of a reference model for object oriented distributed systems. Within this framework, several aspects of resource provision are examined in detail. In each case, an object oriented solution is sought rather than applying existing, process based solutions. The problem of object construction in a heterogeneous environment is addressed, leading to the development of a distributed transformation algorithm for the automatic construction of object representations. A novel scheduling mechanism is developed based upon statistical hypothesis testing. Two applications of this mechanism are simulated in detail: the assignment of invocation messages to object instances, and the suppression of redundant status update messages. The concept of 'virtual properties' is introduced, leading to the development of virtual templates as a re-usable mechanism for endowing objects with properties such as resilience and persistence. The separate resource provision issues addressed are then drawn together to demonstrate how the techniques developed can be used to satisfy users' resource requirements.

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Taesombut, Nut. "Coordinated resource management for guaranteed high performance and efficient utilization in Lambda-Grids." Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 2007. http://wwwlib.umi.com/cr/ucsd/fullcit?p3284249.

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Thesis (Ph. D.)--University of California, San Diego, 2007.
Title from first page of PDF file (viewed January 9, 2008). Available via ProQuest Digital Dissertations. Vita. Includes bibliographical references (p. 152-160).

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7

Аріан, Расул. "Підвищення ефективності моделювання теплонапруженого стану поршнів ДВЗ у багатоетапній САПР." Thesis, НТУ "ХПІ", 2017. http://repository.kpi.kharkov.ua/handle/KhPI-Press/31041.

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Дисертація на здобуття наукового ступеня кандидата технічних наук зі спеціальності 05.05.03 – двигуни та енергетичні установки. – Національний технічний університет "Харківський політехнічний інститут". – Харків, 2017. Дисертація присвячена прогнозуванню теплонапруженого стану та втрати міцності поршнів двигунів внутрішнього згоряння у САПР. Актуальність роботи полягає у підвищенні ефективності процесу проектування на основі дотримання концепції гарантованого забезпечення ресурсу конструкції. Здійснено аналіз сучасного стану методів, моделей і методик прогнозування термонапруженого стану та ресурсу кромок камер згоряння поршнів форсованих двигунів, маршрутів проходження проектів у САПР. Уточнено методику прогнозування накопичення пошкоджень в матеріалі поршня. Удосконалено модель прогнозування граничних умов 3-го роду задачі теплопровідності поршня. Запропоновано залежність локального по поверхні камери згоряння коефіцієнту тепловіддачі, яка враховує кут випередження подачі палива. Розроблено рекомендації щодо вибору визначального режиму навантаження двигуна. Здійснено аналіз особливостей зміни температурного та термонапруженого стану в коловому напрямі кромки камери згоряння з урахуванням змін геометрії поршня, рівня форсування двигуна та інших впливових факторів. Вперше показано, що локальні зміни геометрії вогневої поверхні поршня можуть приводити до різнонаправлених змін температурного та термонапруженого стану таких зон. Розширено уявлення щодо впливу рівнів спрощень геометрії, розрахункової моделі, граничних умов теплопровідності поршня на результати розрахунку міцності кромки камери згоряння поршня. Удосконалено методику проходження проекту поршня в багатоетапній САПР. На прикладі дизеля 4ЧН12/14 проаналізовано заходи щодо забезпечення ресурсної міцності поршнів та визначено чисельні значення їх впливу. Запропоновано дві нові конструкції поршня з порожнинами галерейного масляного охолодження.
Thesis for the degree of candidate of technical sciences by specialty 05.05.03 - engines and power plants. – National Technical University "Kharkiv Polytechnic Institute". – Kharkiv, 2017. The thesis is devoted to the prediction of the heat stressed state and loss of strength of the pistons of internal combustion engines in CAD/CAE. Actuality of work is to increase the efficiency of the design process on the basis of compliance with the concept of guaranteed provision of the resource design. The analysis of the current state of methods, models and methods for predicting the heat stress state and edge resource of the combustion chambers of the forced engine pistons, the routes of the projects passing through the CAD/CAE is carried out in the work. It is shown that the existing deviations from the concept of guaranteed reliability in the applied techniques and models are associated with the possible unreasonable level of assumptions and simplifications of input, external, internal and output parameters of models and, accordingly, with unreasonable design routes. It is suggested to increase the efficiency of the design process on the basis of a comprehensive analysis of the permissible simplification of the geometric and design models, the engine operation model and the corresponding boundary conditions of the piston heat conduction problem. The technique of forecasting the accumulation of damages in the material of the piston is specified. The model of prediction of boundary conditions of the third kind is improved. A dependence of the heat transfer coefficient local on the surface of the combustion chamber is proposed, which takes into account the fuel advance angle. It is established that an increase in the fuel feed angle by 6 ° can more than double the relative damage of the piston material in the combustion chamber edge zone. The recommendations on the choice of the determining mode of loading of the engine are developed. The analysis of the features of the change in the temperature and thermonuclear state in the circumferential direction of the edge of the combustion chamber taking into account changes in the geometry of the piston, the engine boost level and other weighty factors is analyzed. It is shown for the first time that local changes in the geometry of the piston's fire surface can lead to multidirectional changes in the temperature and thermo-stressed state of such zones. The notion of the effect of the levels of simplification of geometry, the calculation model, the boundary conditions of the thermal conductivity of the piston on the results of calculating the strength of the edge of the combustion chamber of the piston is expanded. It has been established that simplifying the geometry of the piston in the zone of the edge of the combustion chamber can lead to a significant over-reduction, more than 35%, of the criterion of relative damage to the material. Such a simplification of the model leads to a violation of the concept of guaranteed assurance of the resource. The technique of passing the piston design in multi-stage CAD/CAE is improved. The example of diesel 4CHN12/14 analyzed the measures to ensure the resource strength of pistons and determined the numerical values of their impact. Two new designs of the piston with cavities of gallery oil cooling are offered.

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8

Аріан, Расул. "Підвищення ефективності моделювання теплонапруженого стану поршнів ДВЗ у багатоетапній САПР." Thesis, НТУ "ХПІ", 2017. http://repository.kpi.kharkov.ua/handle/KhPI-Press/31034.

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Дисертація на здобуття наукового ступеня кандидата технічних наук зі спеціальності 05.05.03 – двигуни та енергетичні установки. – Національний технічний університет "Харківський політехнічний інститут". – Харків, 2017. Дисертація присвячена прогнозуванню теплонапруженого стану та втрати міцності поршнів двигунів внутрішнього згоряння у САПР. Актуальність роботи полягає у підвищенні ефективності процесу проектування на основі дотримання концепції гарантованого забезпечення ресурсу конструкції. Здійснено аналіз сучасного стану методів, моделей і методик прогнозування термонапруженого стану та ресурсу кромок камер згоряння поршнів форсованих двигунів, маршрутів проходження проектів у САПР. Уточнено методику прогнозування накопичення пошкоджень в матеріалі поршня. Удосконалено модель прогнозування граничних умов 3-го роду задачі теплопровідності поршня. Запропоновано залежність локального по поверхні камери згоряння коефіцієнту тепловіддачі, яка враховує кут випередження подачі палива. Розроблено рекомендації щодо вибору визначального режиму навантаження двигуна. Здійснено аналіз особливостей зміни температурного та термонапруженого стану в коловому напрямі кромки камери згоряння з урахуванням змін геометрії поршня, рівня форсування двигуна та інших впливових факторів. Вперше показано, що локальні зміни геометрії вогневої поверхні поршня можуть приводити до різнонаправлених змін температурного та термонапруженого стану таких зон. Розширено уявлення щодо впливу рівнів спрощень геометрії, розрахункової моделі, граничних умов теплопровідності поршня на результати розрахунку міцності кромки камери згоряння поршня. Удосконалено методику проходження проекту поршня в багатоетапній САПР. На прикладі дизеля 4ЧН12/14 проаналізовано заходи щодо забезпечення ресурсної міцності поршнів та визначено чисельні значення їх впливу. Запропоновано дві нові конструкції поршня з порожнинами галерейного масляного охолодження.
Thesis for the degree of candidate of technical sciences by specialty 05.05.03 - engines and power plants. – National Technical University "Kharkiv Polytechnic Institute". – Kharkiv, 2017. The thesis is devoted to the prediction of the heat stressed state and loss of strength of the pistons of internal combustion engines in CAD/CAE. Actuality of work is to increase the efficiency of the design process on the basis of compliance with the concept of guaranteed provision of the resource design. The analysis of the current state of methods, models and methods for predicting the heat stress state and edge resource of the combustion chambers of the forced engine pistons, the routes of the projects passing through the CAD/CAE is carried out in the work. It is shown that the existing deviations from the concept of guaranteed reliability in the applied techniques and models are associated with the possible unreasonable level of assumptions and simplifications of input, external, internal and output parameters of models and, accordingly, with unreasonable design routes. It is suggested to increase the efficiency of the design process on the basis of a comprehensive analysis of the permissible simplification of the geometric and design models, the engine operation model and the corresponding boundary conditions of the piston heat conduction problem. The technique of forecasting the accumulation of damages in the material of the piston is specified. The model of prediction of boundary conditions of the third kind is improved. A dependence of the heat transfer coefficient local on the surface of the combustion chamber is proposed, which takes into account the fuel advance angle. It is established that an increase in the fuel feed angle by 6 ° can more than double the relative damage of the piston material in the combustion chamber edge zone. The recommendations on the choice of the determining mode of loading of the engine are developed. The analysis of the features of the change in the temperature and thermonuclear state in the circumferential direction of the edge of the combustion chamber taking into account changes in the geometry of the piston, the engine boost level and other weighty factors is analyzed. It is shown for the first time that local changes in the geometry of the piston's fire surface can lead to multidirectional changes in the temperature and thermo-stressed state of such zones. The notion of the effect of the levels of simplification of geometry, the calculation model, the boundary conditions of the thermal conductivity of the piston on the results of calculating the strength of the edge of the combustion chamber of the piston is expanded. It has been established that simplifying the geometry of the piston in the zone of the edge of the combustion chamber can lead to a significant over-reduction, more than 35%, of the criterion of relative damage to the material. Such a simplification of the model leads to a violation of the concept of guaranteed assurance of the resource. The technique of passing the piston design in multi-stage CAD/CAE is improved. The example of diesel 4CHN12/14 analyzed the measures to ensure the resource strength of pistons and determined the numerical values of their impact. Two new designs of the piston with cavities of gallery oil cooling are offered.

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9

Kim, Sung-Eun. "Efficient and QoS Guaranteed Data Transport in Heterogeneous Wireless Mobile Networks." Diss., Georgia Institute of Technology, 2006. http://hdl.handle.net/1853/10478.

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The objective of this research is to investigate and develop an efficient and seamless data transport protocol for a heterogeneous wireless mobile network. In next-generation network, most of heterogeneous wireless mobile networks will be combined and complementarily constitute a hierarchical network. To integrate different networks, many challenging issues should be solved. In this thesis, an efficient and seamless data transport mechanisms are explored. We investigate the problems that the current transport control protocol (TCP) will experience within the heterogeneous mobile network. In a heterogeneous network, a mobile host experiences drastic changes in network condition during a session. Traditional TCP struggles with abrupt network changes by intersystem handoff and cannot work efficiently in this environment. We propose a TCP scheme to be tailored to the heterogeneous mobile network to support seamless data transport. In the proposed scheme, a TCP is informed the impending handoff events and works differently based on a handoff type. Simulation results present the proposed algorithm improves throughput, stabilizes data transmission rapidly, and provides a seamless data transfer. We also propose an adaptive resource management scheme within a 3G cellular network based on a users priority level to reduce the call dropping and blocking rates. In a heterogeneous network, a network that provides smaller bandwidth may struggle with handed-off calls being served with a higher bandwidth. Therefore, a resource management algorithm should be defined so that an ongoing call is not dropped by a handoff and provides seamless data transfer. We propose an adaptive resource management scheme based on downgrading the quality of some existing services in a 3G cellular network. We analyze the system capacity, call blocking rate and call dropping rate of the proposed algorithm, and simulate the performance variation of the downgraded traffic. The results show that the proposed scheme increases system capacity, and decreases the call dropping rate at the cost of small delay of the downgraded data traffic.

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Zhang, Yingjun. "Adaptive multiple access and resource allocation with guaranteed QoS for broadband OFDM wireless networks /." View abstract or full-text, 2004. http://library.ust.hk/cgi/db/thesis.pl?ELEC%202004%20ZHANG.

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11

Datsika, Eftychia. "Radio resource management techniques for QoS provision in 5G networks." Doctoral thesis, Universitat Politècnica de Catalunya, 2018. http://hdl.handle.net/10803/664084.

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As numerous mobile applications and over-the-top (OTT) services emerge and mobile Internet connectivity becomes ubiquitous, the provision of high quality of service (QoS) is more challenging for mobile network operators (MNOs). Research efforts focus on the development of innovative resource management techniques and have introduced the long term evolution advanced (LTE-A) communication standard. Novel business models make the growth of network capacity sustainable by enabling MNOs to combine their resources. The fifth generation (5G) mobile networks will involve technologies and business stakeholders with different capabilities and demands that may affect the QoS provision, requiring efficient radio resource sharing. The need for higher network capacity has introduced novel technologies that improve resource allocation efficiency. Direct connectivity among user equipment terminals (UEs) circumventing the LTE-A infrastructure alleviates the network overload. Part of mobile traffic is offloaded to outband device-to-device (D2D) connections (in unlicensed spectrum) enabling data exchange between UEs directly or via UEs-relays. Still, MNOs need additional spectrum resources and infrastructure. The inter-operator network sharing concept has emerged motivating the adoption of virtualization that enables network slicing, i.e., dynamic separation of resources in virtual slices (VSs). VSs are managed in isolation by different tenants using software defined networking and encompass core and radio access network resources allocated periodically to UEs. When UEs access OTT applications, flows with different QoS demands and priorities determined by OTT service providers (OSPs) are generated. OSPs’ policies should be considered in VS allocation. The coexisting technologies, business models and stakeholders require sophisticated radio resource management (RRM) techniques. To that end, RRM is performed in a complex ecosystem. When D2D communication involves data concurrently downloaded by the mobile network, QoS may be affected by LTE-A network parameters (resource scheduling policy, downlink channel conditions). It is also affected by the relay selection, as UEs may not be willing to help unknown UE pairs and UEs’ social ties in mobile applications may influence willingness for D2D cooperation. Thus, effective medium access control (MAC) mechanisms should coordinate D2D transmissions employing advanced techniques, e.g., network coding (NC). When UEs access OTT applications, OSPs’ policies are not considered by MNOs in RRM and OSPs cannot apply flow prioritization. Network neutrality issues also arise when OSPs claim resources from MNOs aiming to minimize grade of service (GoS). OSPs’ intervention may delay flows’ accommodation due to the time required for OSP-MNO interaction and the time the flows spent waiting for resources. This thesis proposes novel solutions to the RRM issues of outband D2D communication and VS allocation for OSPs in 5G networks. We present a cooperative D2D MAC protocol that leverages the opportunities for NC in D2D communication under the influence of LTE-A network parameters and its throughput performance analysis. The protocol improves D2D throughput and energy efficiency, especially for UEs with better downlink channel conditions. We next introduce social awareness in D2D MAC design and present a social-aware cooperative D2D MAC protocol that employs UEs’ social ties to promote the use of friendly relays reducing the total energy consumption. Motivated by the lack of approaches for OSP-oriented RRM, we present a novel flow prioritization algorithm based on matching theory that applies OSPs’ policies respecting the network neutrality and the analysis of its GoS and delay performance. The algorithm maintains low overhead and delay without affecting fairness among OSPs. Our techniques highlight the QoS improvement induced by the joint consideration of different technologies and business stakeholders in RRM design.
A medida que varias aplicaciones móviles y servicios over-the-top (OTT) surgen y el Internet móvil se vuelve ubicua, la prestación de alta calidad de servicio (QoS) es desafiante para los operadores de red móvil (MNOs). Los estudios de investigación se enfocan en técnicas innovadoras para la gestión de recursos de red y han resultado en la especificación del estándar de comunicación long term evolution advanced (LTE-A). Modelos comerciales nuevos hacen que el crecimiento de la capacidad de red sea sostenible al permitir que MNOs combinen sus recursos. La quinta generación (5G) de redes móviles implicará tecnologías y partes comerciales interesadas con varias habilidades y demandas que pueden afectar la provisión de QoS y demandan la gestión eficaz de recursos de radio. La necesidad de capacidad de red más alta ha introducido tecnologías que hacen más eficiente la asignación de recursos. La conectividad directa entre terminales de equipos de usuarios (UEs) eludiendo la infraestructura LTE-A alivia la sobrecarga de red. Parte del tráfico es dirigido a conexiones de dispositivo a dispositivo (D2D) outband permitiendo la comunicación de UEs directamente o con relés. Los MNOs necesitan nuevos recursos de espectro e infraestructura. El intercambio de recursos entre MNOs ha surgido motivando la adopción de virtualización que realiza la segmentación de red i.e., la separación dinámica de recursos en trozos virtuales (VSs). Los VSs son administrados de forma aislada por inquilinos diferentes con software defined networking y abarcan recursos de red core y radio access asignadas periódicamente a UEs. Cuando UEs usan aplicaciones OTT, flujos de aplicación con demandas y prioridades definidas por proveedores de servicios OTT (OSPs) se generan. Las políticas de OSPs deben ser integradas en la asignación de VSs. La coexistencia de varias tecnologías y partes comerciales demanda técnicas sofisticadas de gestión de recursos radio (RRM). Con ese fin, la RRM se realiza en un ecosistema complejo. Si la comunicación D2D involucra datos descargados simultáneamente por la red móvil, los parámetros de red LTE-A (política de scheduling de recursos, condiciones de canal downlink) afectan el QoS. La selección de relés afecta el rendimiento porque los UEs no desean siempre ayudar a UEs desconocidos. Las relaciones sociales de los UEs en aplicaciones móviles pueden determinar la voluntad para la comunicación cooperativa D2D. Por lo tanto, mecanismos de control de acceso al medio (MAC) deben coordinar las transmisiones D2D con técnicas avanzadas ej., codificación de red. Si los UEs usan servicios OTT, las políticas de OSPs no son consideradas en RRM y los OSPs no emplean flujos prioritarios. Problemas de neutralidad de red surgen cuando los OSPs reclaman recursos de MNOs para minimizar el grado de servicio (GoS). La intervención de OSPs puede causar retraso en el servicio de flujos debido a la interacción OSP-MNO y el tiempo requerido para que los flujos reciban recursos. Esta tesis presenta soluciones nuevas para los problemas RRM de comunicación D2D outband y asignación de VSs a OSPs en redes 5G. Proponemos un protocolo D2D MAC cooperativo que explota las oportunidades de NC bajo la influencia de parámetros de red LTE-A y su análisis de rendimiento. El protocolo mejora el rendimiento y la eficiencia energética especialmente para UEs con mejores condiciones de canal downlink. Introducimos la conciencia social en el D2D MAC y proponemos un protocolo que utiliza relaciones sociales de UEs para elegir relés-amigos y reduce el consumo de energía. Dada la falta de técnicas que aborden el problema RRM de OSPs presentamos un algoritmo que aplique políticas de OSPs y respete la neutralidad usando la teoría de matching, y su análisis de GoS y retraso. El algoritmo induce bajo coste y retraso sin afectar la imparcialidad entre OSPs. Estas técnicas demuestran la mejora de QoS gracias a la consideración de tecnologas y partes comerciales diferentes en RRM.

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Tymoshenko, O. "Ecological and economic aspects of resource provision of mining enterprise." Thesis, Sumy State University, 2015. http://essuir.sumdu.edu.ua/handle/123456789/40865.

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Mining companies use ore reserves incompletely, that is due to, on the one hand, unfavorable geological conditions of ore deposits occurrence, on the other – the low and slow-performing solution for complete and integrated use of existing reserves.

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Kavanagh, Richard Edward. "Negotiated resource brokering for quality of service provision of grid applications." Thesis, University of Leeds, 2013. http://etheses.whiterose.ac.uk/8089/.

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Grid Computing is a distributed computing paradigm where many computers often formed from different organisations work together so that their computing power may be aggregated. Grids are often heterogeneous and resources vary significantly in CPU power, available RAM, disk space, OS, architecture and installed software etc. Added to this lack of uniformity is that best effort services are usually offered, as opposed to services that offer guarantees upon completion time via the use of Service Level Agreements (SLAs). The lack of guarantees means the uptake of Grids is stifled. The challenge tackled here is to add such guarantees, thus ensuring users are more willing to use the Grid given an obvious reluctance to pay or contribute, if the quality of the services returned lacks any guarantees. Grids resources are also finite in nature, hence priorities need establishing in order to best meet any guarantees placed upon the limited resources available. An economic approach is hence adopted to ensure end users reveal their true priorities for jobs, whilst also adding incentive for provisioning services, via a service charge. An economically oriented model is therefore proposed that provides SLAs with bicriteria constraints upon time and cost. This model is tested via discrete event simulation and a simulator is presented that is capable of testing the model. An architecture is then established that was developed to utilise the economic model for negotiating SLAs. Finally experimentation is reported upon from the use of the software developed when it was deployed upon a testbed, including admission control and steering of jobs within the Grid. Results are presented that show the interactions and relationship between the time and cost constraints within the model, including transitions between the dominance of one constraint over the other and other things such as the effects of rescheduling upon the market.

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Xu, Qing. "Flexible Radio Resource Management for Multicast Multimedia Service Provision : Modeling and Optimization." Thesis, Belfort-Montbéliard, 2014. http://www.theses.fr/2014BELF0237/document.

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Le conflit entre la demande de services multimédia en multidiffusion à haut débit (MBMS) et les limites en ressources radio demandent une gestion efficace de l'allocation des ressources radio (RRM) dans les réseaux 3G UMTS. À l'opposé des travaux existant dans ce domaine, cette thèse se propose de résoudre le problème de RRM dans les MBMS par une approche d’optimisation combinatoire. Le travail commence par une modélisation formelle du problème cible, désigné comme Flexible Radio Resource Management Model (F2R2M). Une analyse de la complexité et du paysage de recherche est effectuée à partir de ce modèle. Tout d’abord on montre qu'en assouplissant les contraintes de code OVSF, le problème de RRM pour les MBMS peut s'apparenter à un problème de sac à dos à choix multiples (MCKP). Une telle constatation permet de calculer les limites théoriques de la solution en résolvant le MCKP similaire. En outre, l'analyse du paysage montre que les espaces de recherche sont accidentés et constellés d'optima locaux. Sur la base de cette analyse, des algorithmes métaheuristiques sont étudiés pour résoudre le problème. Nous montrons tout d'abord que un Greedy Local Search (GLS) et un recuit simulé (SA) peuvent trouver de meilleures solutions que les approches existantes implémentées dans le système UMTS, mais la multiplicité des optima locaux rend les algorithmes très instables. Un algorithme de recherche tabou (TS) incluant une recherche à voisinage variable (VNS) est aussi développé et comparé aux autres algorithmes (GLS et SA) et aux approches actuelles du système UMTS ; les résultats de la recherche tabou dépassent toutes les autres approches. Enfin les meilleures solutions trouvées par TS sont également comparées avec les solutions théoriques générées par le solveur MCKP. On constate que les meilleures solutions trouvées par TS sont égales ou très proches des solutions optimales théoriques
The high throughputs supported by the multimedia multicast services (MBMS) and the limited radio resources result in strong requirement for efficient radio resource management (RRM) in UMTS 3G networks. This PhD thesis proposes to solve the MBMS RRM problem as a combinatorial optimization problem. The work starts with a formal modeling of the problem, named as the Flexible Radio Resource Management Model (F2R2M). An in-depth analysis of the problem complexity and the search landscape is done from the model. It is showed that, by relaxing the OVSF code constraints, the MBMS RRM problem can be approximated as a Multiple-Choice Knapsack Problem (MCKP). Such work allows us to compute the theoretical solution bounds by solving the approximated MCKP. Then the fitness landscape analysis shows that the search spaces are rough and reveal several local optimums. Based on the analysis, some metaheuristic algorithms are studied to solve the MBMS RRM problem. We first show that a Greedy Local Search (GLS) and a Simulated Annealing (SA) allow us to find better solutions than the existing approaches implemented in the UMTS system, however the results are instable due to the landscape roughness. Finally we have developed a Tabu Search (TS) mixed with a Variable Neighborhood Search (VNS) algorithm and we have compared it with GLS, SA and UMTS embedded algorithms. Not only the TS outperforms all the other approaches on several scenarios but also, by comparing it with the theoretical solution bounds generated by the MCKP solver, we observe that TS is equal or close to the theoretical optimal solutions

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Weerakoon, Don Dilshan. "Radio resource management strategies for multiple services and their implications for guaranteed quality of service during handover." Thesis, King's College London (University of London), 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.251590.

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Liu, M. (Meirong). "Efficient super-peer-based coordinated service provision." Doctoral thesis, Oulun yliopisto, 2014. http://urn.fi/urn:isbn:9789526204000.

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Abstract Peer-to-Peer (P2P) networks have been applied in many applications for sharing resources such as storage space, media files or network bandwidth. Their main benefits include decentralization, self-organization, and scalability. Moreover, P2P technologies are evolving towards hybrid systems, where P2P networks are used in those parts of a larger system to leverage the decentralization most efficiently. The examples include cloud computing, where P2P networks are used in sharing computing resources, and Machine-to-Machine communication, where P2P networks are used for resource discovery. In super-peer overlays, the nodes are either regular nodes or super nodes that are located higher in the node hierarchy. This type of overlay explores the heterogeneity of peers in the overlay network to enable applications to run more efficiently. Leveraging the advantage of a super-peer overlay for service provision is an important issue. This thesis contributes to the research and development of super-peer-based coordination service provision from three aspects. Firstly, a super-peer-based coordinated service provision framework is proposed to coordinate different service groups and service peers in resource sharing, aiming to enable service groups to adapt to dynamic service demands. The proposed framework is evaluated using the following performance metrics: service response time, scalability, robustness, and communication traffic, in comparison to related work. Secondly, an efficient algorithm for rapidly constructing a robust super-peer overlay is proposed. The algorithm introduces a super-peer candidate based method for super-peer selection and a two-hop search method for finding client peers. Performance evaluation takes into account the convergence time of building a super-peer overlay, communication overhead, scalability, robustness. A comparison to related work is also conducted. Thirdly, the architecture of distributed resource discovery based on P2P overlay for Machine-to-Machine service provision is proposed. The architecture supports heterogeneous devices using different communication protocols in resource registration and discovery for achieving interoperability. As a part of the thesis, a functional real-world prototype is implemented and verified with a simple demonstration. Preliminary evaluation on the prototype indicates that caching can improve the response time of resource lookup dramatically
Tiivistelmä Vertaisverkkoja on hyödynnetty resurssien kuten tallennustilan, mediasisältöjen ja tietoliikennekapasiteetin jakamisessa. Niiden etuja perinteisiin keskitettyihin järjestelmiin verrattuna ovat hajautettu arkkitehtuuri, itseorganisoituvuus ja skaalautuvuus. Vertaisverkkoja käytetään yhä useammin järjestelmän osien toteuttamisessa, joissa hajautettujen resurssien hyödyntämisellä saavutetaan suurimmat edut. Esimerkkeinä ovat pilvilaskenta, jossa vertaisverkkoa käytetään laskentaresurssien jakamiseen, sekä laitteidenvälinen kommunikaatio, jossa vertaisverkkoja käytetään resurssien löytämiseen. Hierarkkisissa vertaisverkoissa niihin kytkeytyneet laitteet jaotellaan laitteiden kapasiteetin mukaan tavallisiin noodeihin ja näiden yläpuolella hierarkiassa toimiviin ylinoodeihin. Ylinoodeihin perustuva vertaisverkon kuoriverkko hyödyntää yksittäisten verkon noodien eli laitteiden erilaisuutta, jotta verkko voisi toimia tehokkaammin. Tämän ominaisuuden hyödyntäminen on erityisen tärkeää palvelun tarjonnassa. Tässä työssä on tutkittu ylinoodeihin perustuvan vertaisverkon palvelun tarjontaa kolmesta näkökulmasta. Ensimmäiseksi, työssä ehdotetaan ylinoodien koordinoimaa palveluntarjonnan toimintamallia resurssien jakamisessa. Toimintamallissa palveluryhmät ja palvelunoodit adaptoituvat dynaamisesti palvelupyyntöjen tarpeisiin. Tämän ratkaisun suorituskykyä arvioidaan palvelun vasteajan, skaalautuvuuden, robustisuuden ja tietoliikennemäärän suhteen verrattuna aiempiin ratkaisuihin. Toiseksi, työssä esitellään tehokas algoritmi robustin ylinoodikuoriverkon nopeaan muodostamiseen. Algoritmi käyttää ylinoodiehdokasmenetelmää ja kahden hypyn hakumetodia asiakasnoodien etsimisessä. Suorituskyvyn arvioinnissa otetaan huomioon ylinoodikuoriverkon konvergoitumisaika, tietoliikenneviestinnän aiheuttama ylimääräinen kuormitus, sekä järjestelmän skaalautuvuus ja robustisuus. Esitetyn algoritmin tehokkuutta arvioidaan vertaamalla näitä suorituskykymittareita aiempiin ratkaisuihin. Kolmanneksi, työssä esitellään hajautettu resurssihakemiston arkkitehtuuri, joka perustuu laitteiden välisen kuoriverkon palveluntarjontaan. Arkkitehtuuri tukee erilaisten laitteiden ja niiden käyttämien protokollien resurssien rekisteröintiä ja löytämistä yhteensopivuuden saavuttamiseksi. Väitöskirjatyön osana on toteutettu toimiva prototyyppi, jonka toimivuus on todennettu demonstraation avulla. Prototyypillä tehdyt mittaukset antavat perustellun syyn olettaa, että esitetyn ratkaisun mukainen välimuistin käyttö voi merkittävästi lyhentää resurssien etsimisen vasteaikaa

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鄭永昌 and Wing-cheung Cheng. "A further implementation plan for the provision of resource support ofthe five year strategy." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2002. http://hub.hku.hk/bib/B3125617X.

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Maria, Speciale Anna. "Midwifery in low resource environments. Challenges and opportunities in maternal and reproductive health service provision." Doctoral thesis, Universitat Autònoma de Barcelona, 2016. http://hdl.handle.net/10803/392672.

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Esta tesis busca responder la siguientes preguntas de investigación: “¿Están las parteras en países de bajos recursos proporcionando los servicios de calidad en salud materna y reproductiva que se necesitan?, ¿Qué brechas existen? ¿Cuáles mejoras en la formación son necesarias para que las parteras presten servicios de mayor calidad en salud materna y reproductiva? Esta tesis es una compilación de estudios de caso de tres investigaciones. Este trabajo identifica los problemas y brechas existentes en la calidad de la prestación de los servicios de partería y la formación del personal, además realiza una evaluación de proyecto proporcionando información sobre los resultados y mejoras en la calidad y disponibilidad de cuidados en partería. El primer estudio de caso se lleva a cabo en Afganistán y es una presentación del marco Tanahashi y su uso para identificar las barreras y obstáculos en la provisión de servicios de partería. Los resultados finales fueron bastante inquietantes luego de descontar la disponibilidad, aceptabilidad, accesibilidad y contacto, la cobertura efectiva restante fue del 12% para la población urbana y el 26% de la población rural. El estudio de caso de Tanzania ofrece una imagen muy completa de la (bajo) nivel de calidad que se puede encontrar sobre todo en entornos de bajos recursos. En la investigación aportada en esta tesis se demuestra que la calidad de los servicios ofrecidos por los recién graduados es muy baja y las pruebas de habilidades revelaron que menos del 25% de ellos eran capaces de realizar las estándares internacionales. El estudio de caso final tiene lugar en Ghana. Este estudio se basa en una evaluación de proyecto de formación de parteras. El caso de estudio presenta resultados cualitativos que demuestran que tanto los profesores, los preceptores y los alumnos, todos ellos, sintieron que el programa tuvo un impacto positivo. Los casos cuantitativos revisados revelaron que los preceptores ofrecieron servicios de planificación familiar de largo plazo y atención integral del aborto a la comunidad después de este proyecto. En la agenda posterior a 2015, las parteras han sido identificadas como los principales proveedores de servicios de salud materna y reproductiva. A nivel mundial hay una escasez importante de parteras e incluso los países con un número suficiente, existen graves preocupaciones sobre la distribución del personal de partería en los países de bajos recursos, con una tendencia hacia la concentración en entornos urbanos, mientras que la mayor necesidad se encuentra en las áreas rurales. Sin embargo, un aumento en el número de parteras sin un aumento de la calidad probablemente sería infructuosa. La partería es diversa en todos los países y existen grandes diferencias en la salud materna y reproductiva dentro de los países. Antes de diseñar nuevas intervenciones, evaluaciones como las que se contemplaron en esta tesis deben completarse. Este es un momento emocionante para la partería a nivel mundial, y en particular en países de bajos recursos. Se espera que esta tesis contribuya a la creciente literatura acerca de la partería y que esta ofrezca algunos ejemplos claros de estudio y la mejora (particularmente con respecto a la calidad y disponibilidad) de los servicios de partería en los países de bajos recursos. Mientras que los retos actuales son grandes, también lo son las oportunidades.
This thesis sought to answer the question: “Are midwives in low resource countries providing the quality maternal and reproductive health services that are needed? What gaps exist?” What training improvements will better prepare midwives to provide quality maternal and reproductive health services?” This thesis is a compilation of case studies: two investigative studies for problem identification and gaps in quality in midwifery service provision and midwifery education and one project evaluation providing information about outcomes and improvements in the quality and availability of midwifery care. The first case study takes place in Afghanistan and is a presentation of the Tanahashi framework and its use to identify barriers and bottlenecks in midwifery service provision. Final results were quite disturbing, as after discounting for availability, acceptability, accessibility, contact the effective coverage remaining was 12% for urban populations and 26% for the rural population. The Tanzanian case study offers a very complete picture of the level of quality of service that can be found particularly in low-resource settings. The research provided in this thesis demonstrated that quality of services being offered by recent graduates is very low, with less than 25% passing skills testing of crucial life-saving skills. Additionally it showed that the current curriculum and training system do not meet international standards. The final case study took place in Ghana. This case study was based on a project evaluation for a training intervention. This case study presents qualitative findings that demonstrate that the teachers, the preceptors and the students all felt that the program had a positive impact. Quantitative caseload reviews revealed that the preceptors offered more long term family planning and comprehensive abortion care services in the community after this project. In the post-2015 agenda midwives have been identified as the leading providers for maternal and reproductive health services. Globally, there is an important shortage in midwives and even countries with sufficient numbers, there are grave concerns about the distribution of the midwifery workforce in low resource countries with a tendency toward a concentration in urban environments while the greatest need is in the rural areas. However an increase in the number of midwives without an increase in quality will likely be fruitless. Midwifery is diverse in every country and great differences in maternal and reproductive health exist within countries. Prior to designing interventions, assessments such as those viewed in this thesis should be completed. This is an exciting time for midwifery globally, and particularly in low resource countries. It is hoped that this thesis contributes to the growing literature regarding midwifery and that it provides some clear examples of the study of and improvement (particularly with regard to quality and availability) of midwifery services in low resource countries. While the current challenges are great, so are the opportunities.

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Cheng, Wing-cheung. "A further implementation plan for the provision of resource support of the five year strategy /." Hong Kong : University of Hong Kong, 2002. http://sunzi.lib.hku.hk/hkuto/record.jsp?B25148485.

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Panneerselvam, John. "A prescriptive analytics approach for energy efficiency in datacentres." Thesis, University of Derby, 2018. http://hdl.handle.net/10545/622460.

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Given the evolution of Cloud Computing in recent years, users and clients adopting Cloud Computing for both personal and business needs have increased at an unprecedented scale. This has naturally led to the increased deployments and implementations of Cloud datacentres across the globe. As a consequence of this increasing adoption of Cloud Computing, Cloud datacentres are witnessed to be massive energy consumers and environmental polluters. Whilst the energy implications of Cloud datacentres are being addressed from various research perspectives, predicting the future trend and behaviours of workloads at the datacentres thereby reducing the active server resources is one particular dimension of green computing gaining the interests of researchers and Cloud providers. However, this includes various practical and analytical challenges imposed by the increased dynamism of Cloud systems. The behavioural characteristics of Cloud workloads and users are still not perfectly clear which restrains the reliability of the prediction accuracy of existing research works in this context. To this end, this thesis presents a comprehensive descriptive analytics of Cloud workload and user behaviours, uncovering the cause and energy related implications of Cloud Computing. Furthermore, the characteristics of Cloud workloads and users including latency levels, job heterogeneity, user dynamicity, straggling task behaviours, energy implications of stragglers, job execution and termination patterns and the inherent periodicity among Cloud workload and user behaviours have been empirically presented. Driven by descriptive analytics, a novel user behaviour forecasting framework has been developed, aimed at a tri-fold forecast of user behaviours including the session duration of users, anticipated number of submissions and the arrival trend of the incoming workloads. Furthermore, a novel resource optimisation framework has been proposed to avail the most optimum level of resources for executing jobs with reduced server energy expenditures and job terminations. This optimisation framework encompasses a resource estimation module to predict the anticipated resource consumption level for the arrived jobs and a classification module to classify tasks based on their resource intensiveness. Both the proposed frameworks have been verified theoretically and tested experimentally based on Google Cloud trace logs. Experimental analysis demonstrates the effectiveness of the proposed framework in terms of the achieved reliability of the forecast results and in reducing the server energy expenditures spent towards executing jobs at the datacentres.

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Ruenwai, Narumol. "Science and technology information in Thailand : policies, strategies and provision." Thesis, Loughborough University, 2006. https://dspace.lboro.ac.uk/2134/2975.

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The aim of the research was to investigate the current state of scientific and technological (S&T) information service provision in Thailand with a focus on its role of supporting research and development. The ultimate goal of the research was to develop a service model(s) which could aid the modernisation of the S&T information service. The information policies and strategic management at national and institutional levels were examined together with present and future roles in service provision and barriers to S&T information development. The research framework was constructed on the basis of theoretical models of the provision and management of effective information services. The institutions which participated in this research included 46 academic and special libraries in Thailand, hereafter called S&T information centres, and two funding agencies. The data were collected using a variety of research tools, employing both quantitative and qualitative methods, namely, questionnaires, semi-structured interviews, and focus groups. The questionnaires were distributed to five groups of respondents: executives, managers, librarians or staff, end-users, and executives or policy-makers of funding agencies. Two hundred and eighty-nine questionnaires were sent by post to 45 S&T information centres and two funding agencies whilst 703 questionnaires were also distributed to end-users. Interviews were performed with 55 executives and library managers. Three focus groups were organised on different topics, with a total of 36 participants. The major findings showed that national information policy in relation to S&T information was still relatively ineffective with roles and responsibilities of stakeholders not explicitly identified. In general, the results showed that institutional information policies exist but weak communication between executives, managers, and staff caused problems with implementation and interpretation. Most S&T centres were found to have strategic plans. The focus of these were on issues of integrated ICT infrastructure, acquisition of electronic resources, service improvement, communication with users and feedback, user education, cost effective use of resources, E-library transition and knowledge sharing. The development of resource sharing via computerised networks was considered to be paramount; progress to date was thought to be slow due to a lack of policies at national and institutional levels. Users' information literacy was still found to be an issue, particularly in respect of making effective use of electronic resources. The thesis provided recommendations for a national network for S&T information provision to be designed and managed by a hosting provider.

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Hester, Katharine L. M. "Information and education provision for patients with bronchiectasis : an exploration of unmet needs and development of a novel resource." Thesis, University of Newcastle upon Tyne, 2017. http://hdl.handle.net/10443/3813.

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Bronchiectasis is a chronic lung disease that can create significant symptom and treatment burdens for those affected, and significant costs to the National Health Service. Treatment concordance can be problematic and improvements in interventions are urgently required. There is little patient information available, yet information and education could support patients to self-manage, improve understanding and optimise engagement with treatment. This in turn could facilitate reductions in unscheduled presentations to healthcare services and improvements in longer-term health-related outcomes. A mixed methods approach was taken to this work. Qualitative interviews were conducted with patients and carers to explore and understand their unmet information needs. Using thematic analysis, a core mediating issue emerged: what it means to learn to live your life with bronchiectasis. Embedded within this journey were issues around developing support and coping mechanisms, learning to connect with information, taking back control and developing active partnerships with the medical team. Using the interview findings, a novel information resource was co-developed during a series of workshops with patients and carers. Potential designs, formats and content were discussed and prototypes developed, reviewed and refined. A booklet and a website featuring video content (www.bronchiectasis.me) were produced. A feasibility study (The BRIEF Study, ISRCTN84229105) was subsequently conducted comparing use of this novel information resource to usual care. Feasibility outcomes included recruitment and retention rates and questionnaire completion rates. 62 participants were randomised; 60 completed the study. Recruitment and questionnaire completion rates were excellent. Resource evaluation conducted within the trial was positive and demands for access worldwide were high. By understanding what it means to live with bronchiectasis, a resource that meets users’ needs has been co-developed. The feasibility study indicates that a definitive trial establishing effect on understanding, self-management and health-related outcomes would be feasible and that the resource is credible and of high quality.

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Fisher, Christopher M. "Assessing sexual health information & resource provision in Indiana youth-serving community-based organizations utilizing community-based participatory research methods." [Bloomington, Ind.] : Indiana University, 2009. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3378347.

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Thesis (Ph.D.)--Indiana University, School of Health, Physical Education and Recreation, 2009.
Title from PDF t.p. (viewed on Jul 8, 2010). Source: Dissertation Abstracts International, Volume: 70-10, Section: B, page: 6149. Adviser: Michael Reece.

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Davert, Elena M. "Putting the 'Public' Back into the Public Sector: Rethinking Potable Water Provision and Water Management Policy in Mexico City." Scholarship @ Claremont, 2012. http://scholarship.claremont.edu/cmc_theses/455.

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Reliable access to potable water is one of the most important building blocks for developing countries. Clean drinking water not only helps people break free of the cycle of poverty, but fulfilling basic health needs allows communities to address long-term development goals and improve their quality of life. Although the Millennium Development Goals aimed to halve the number of households lacking access to clean drinking water by 2015, many countries around the world still struggle to improve water coverage to their poorest citizens. Latin America is no exception, and despite being one of the most water-rich regions in the world, over 50 million people still lack access to reliable potable water. In a case study of Mexico City, this paper analyzes the trends of decentralization, privatization, and water management reform characteristic of Latin America, as well as their effects on universal water coverage. The analysis reveals that not only is privatization not a prerequisite characteristic of successful water resource management, but that local governments may be equally successful at expanding their water networks through the implementation of tariff reform, output-based aid, and increased public participation.

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Naji, Riad A. "Congruity between theory, policy, and practice in the provision of extension services for resource poor farmers by the extension system in Syria." Thesis, University of Reading, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.276182.

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Karelse, Cathy-Mae. "Alternative models of information provision with special reference to the International Research and Information Group and the Education Resource and Information Project." Master's thesis, University of Cape Town, 1995. http://hdl.handle.net/11427/13395.

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Bibliography: leaves 194-199.
This study examines the contribution made by two alternative service or non-governmental organisations (NGOs) to the provision and delivery of information in South Africa. A brief analysis of the role of information in impacting on and/or reproducing social formations is undertaken to provide an understanding of the way in which information has been used in the South African context to repress transformation of the apartheid state. This discussion frames an investigation into ways in which NGOs have attempted to counter information control on the part of the apartheid regime by mediating information to their constituencies. The relationship between information, education and development is addressed, providing insight into the educational role which service organisations play in delivering an information service on the one hand, the information role they perform in providing an education service on the other, and the developmental role they assume in both instances. Particular attention is paid to the way in which these services relate to their users in the process of imparting information to them. In this regard the interface between NGOs and their users is investigated and the very nature of this interaction assessed.

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Igwebuike, Alvin C. "Evaluating the effect of ESEA's funds consolidation provision on school-level achievment at Title I elementary schoolwide program buildings." Bowling Green State University / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1530892306065014.

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Hercock, Julie Maree. "An investigation into the impact of the Resource Management Act 1991 on the provision of information by regional councils in annual plans and annual reports." Thesis, University of Canterbury. Accounting and Information Systems, 1995. http://hdl.handle.net/10092/2709.

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Prior to the Resource Management Act 1991 (RMA) New Zealand's environmental law was managed via a plethora of overlapping, confusing, and conflicting legislation (Resource Management Bill (RMB), i). The purpose of the RMA is to promote the sustainable management of New Zealand's natural and physical resources. It imposes a duty on every person to ensure that this is achieved. Regional councils play a pivotal role in promoting sustainable management because they are responsible for establishing, implementing, and reviewing objectives, policies and methods to achieve integrated management of natural and physical resources in their regions. They must prepare a regional policy statement and a coastal policy statement, and where necessary regional plans. In addition, they have certain other duties under the RMA: to consider alternatives, benefits, and costs (section 32); and to gather information, monitor, and keep records (section 35). However, the RMA does not clearly outline how regional councils should provide information to the public about progress made towards objectives as outlined in regional plans and policy statements and their other duties. It is important for the regional council to be accountable to the public for their progress made towards objectives and their duties since, as ratepayers, the public are financial contributors.1 This study investigates how regional councils are currently providing information to the public about progress made towards objectives and their other duties as required under the RMA. This study also investigates whether the annual plans and annual reports (as required under the Local Government Act 1974 (LGA)) are the appropriate vehicles for disclosing this information. The research is conducted through a survey sent to accountants who coordinate and/or prepare annual plans and annual reports in regional councils (or councils with regional responsibilities) who prepare annual plans and annual reports. Follow-up interviews were held with two accountants at these regional councils. The research has found that the RMA has currently had little impact on the provision of information by regional councils in annual plans and annual reports. However, the impact may be greater in the future.

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Antonioli, Roberto Pinto. "Adaptive radio resource allocation algorithm for user satisfaction maximization in multiple services wireless networks." reponame:Repositório Institucional da UFC, 2017. http://www.repositorio.ufc.br/handle/riufc/25618.

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ANTONIOLI, R. P. Adaptive radio resource allocation algorithm for user satisfaction maximization in multiple services wireless networks 2017. 102 f. Dissertação (Mestrado em Engenharia de Teleinformática)–Centro de Tecnologia, Universidade Federal do Ceará, Fortaleza, 2017.
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Rejected by Marlene Sousa (mmarlene@ufc.br), reason: Prezado Roberto, No sumário deixe o mesmo espaço entre as linhas para não caracterizar destaque entre as partes. O espaçamento entre as linhas deve ser igual em todo o sumário. Na lista de referencias vc está entrando com o nome dos autores da ordem direta. Ex E. B. Rodrigues A ABNT orienta que a entrada deva ser pelo ultimo nome, seguido do pré nome e em letras maiúsculas. Ex RODRIGUES, E. B. A informação de volume, número e paginas nos periódicos deve ser v. n. p. e não vol. (jun 8) pp. A ABNT orienta que o destaque do titulo deve ser feito com uso de negrito ou itálico. Não deve ser usado aspas para destacar. Marlene Rocha 3366-9620 on 2017-09-08T18:25:36Z (GMT)
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Rejected by Marlene Sousa (mmarlene@ufc.br), reason: Prezado Roberto, Acredito que vc não observou bem o template pois nele o Sumário deve ter o alinhamento das referencias e Apêndices logo abaixo da letra C de conclusão e não volta pra margem abaixo do numeral como vc fez. Coloca-se Apendice A Seguido do título; Apendice A1 seguido do título e assim sucessivamente. Na lista de referencias e não bibliografia, quando se faz a referencia do artigo de periódico, o que fica em negrito é o nome da revista e não o titulo do artigo. Sempre oriento para seguir o template, pois nem sempre consigo alertar para todas as informações que devem ser normalizadas. Marlene Rocha on 2017-09-11T14:19:49Z (GMT)
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The enriched service scope, the steep increase in mobile traffic volume, and the ever increasing number of connected devices in mobile networks coupled with the scarcity of electromagnetic spectrum have raised the importance of designing flexible and ingenious means to guarantee high user satisfaction levels. Therefore, in order to capture and maintain a representative share of the wireless communication market, effective ways to manage the scarce physical resources of cellular networks are fundamental for cellular network operators. The Radio Resource Allo- cation (RRA) algorithms are responsible for performing such a relevant and arduous task. The efficiency of such algorithms is essential so that there exists a fair resource allocation among users and the Quality of Service (QoS) requirements of each individual user are met, thus guar- anteeing high user satisfaction levels. The recent scenarios of cellular networks are composed of a wide range of available services for mobile users, which demand conflicting QoS requirements. In order to achieve the objective of user satisfaction maximization in such networks, we formulate a utility-based cross-layer opti- mization problem targeted at maximizing the user satisfaction in multi-service cellular networks. The optimal solution of the proposed problem is very hard to be found. Thus, we mathematically manipulate the problem and derive a low complexity suboptimal solution from which we design an adaptive RRA technique. Our technique is composed of user weights and an innovative ser- vice weight that is adapted to meet the satisfaction target of the most prioritized service chosen by the network operator. Furthermore, the proposed algorithm is scalable to several classes of service and can be employed in the current and future generations of wireless systems. The performance evaluation of the proposed algorithm was conducted by means of system-level simulations in various scenarios. The evaluation was performed considering different multi- service scenarios. Then, the performance was evaluated considering imperfect Channel State Information (CSI) estimation at the transmitter. Significant gains in the overall system capacity were obtained in comparison with four benchmarking algorithms from the literature, demon- strating that the adaptability and service prioritization of the proposed algorithm are effective towards the objective of simultaneously maximizing the user satisfaction for multiple services.
O escopo enriquecido de serviços, o aumento acentuado do volume de tráfego móvel e o nú- mero cada vez maior de dispositivos conectados nas redes móveis, acompanhado pela escassez do espectro eletromagnético, aumentaram a importância de projetar meios flexíveis e engenho- sos para garantir altos níveis de satisfação dos usuários. Portanto, para capturar e manter uma participação representativa no mercado das comunicações sem fio, mecanismos efetivos para gerenciar os recursos físicos escassos das redes celulares são fundamentais para as operadoras das redes celulares. Os algoritmos de alocação dos recursos de rádio (do inglês, Radio Resource Allocation (RRA)) são os responsáveis por executar essa tarefa tão relevante e árdua. A eficiên- cia desses algoritmos é essencial para que exista uma alocação justa de recursos entre os usuários e os requisitos individuais de qualidade de serviço (do inglês, Quality of Service (QoS)) de cada usuário sejam atendidos, garantindo assim altos níveis de satisfação dos usuários. Os cenários atuais das redes celulares são compostos por uma ampla gama de serviços disponí- veis para usuários móveis, que exigem requisitos de QoS conflitantes. Para alcançar o objetivo de maximizar a satisfação dos usuários nessas redes, formulamos um problema de otimização baseado na teoria da utilidade considerando múltiplas camadas que visa maximizar a satisfação dos usuários em redes celulares com múltiplos serviços. A solução ótima do problema proposto é muito difícil de ser encontrada. Dessa forma, nós manipulamos matematicamente o problema e derivamos uma solução subótima de baixa complexidade a partir da qual nós desenvolvemos um mecanismo adaptativo de RRA. Nosso mecanismo é composto por prioridades relacionadas aos usuários e uma inovadora prioridade relacionada ao serviço que é adaptada para atender um objetivo de satisfação dos usuários de um serviço com maior prioridade escolhido pela opera- dora da rede. Além disso, o algoritmo proposto é escalável para várias classes de serviço e pode ser empregado nas gerações atuais e futuras de sistemas celulares. A avaliação de desempenho do algoritmo proposto foi realizada por meio de simulações sistêmi- cas em vários cenários. A avaliação foi realizada considerando diferentes cenários com múltiplos serviços. Então, o desempenho foi avaliado considerando estimativa imperfeita da informação do estado de canal (do inglês, Channel State Information (CSI)) no transmissor. Ganhos signi- ficativos foram obtidos na capacidade total do sistema em comparação com quatro algoritmos encontrados da literatura, demonstrando que a adaptabilidade e priorização do serviço feita pelo algoritmo proposto são eficazes para atingir o objetivo de maximizar simultaneamente a satisfa- ção dos usuários para múltiplos serviços.

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Wożniak, Leshek, D. O. Ziz, and Д. О. Зиз. "Anti-crisis management as a basis for improving the competitive status of the enterprise." Thesis, National Aviation University, 2021. https://er.nau.edu.ua/handle/NAU/53337.

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1. Ареф’єва О.В. Ковальчук А. М. Економічний механізм підтримання фінансової безпеки підприємства через антикризове управління та реінжиніринг. Вісник Хмельницького національного університету. 2018. № 6. т.3 (264). с. 76-82. 2.Прохорова, В., Божанова, О., Дуднєва, Ю. (2021). Convergent-cognitive bases of innovative development of industrial enterprises. Adaptive Management: Theory and Practice. Series Economics, 10(20).
Company's activity in market conditions is accompanied by negative impacts of external environment factors as on the competitive status and its possible dynamics, and on the stability of the operation, which is due to the riskiness of any activity. Threats to the stability of functioning, that take place in the internal environment, lead to the insufficient use of economic potential of the enterprise and the provision of resources. Significant influence of crisis phenomena is also experienced by activity of the enterprise on resource provision. Because of its versatility, this area of activity is vulnerable to almost all the negative phenomena caused by the causes of crisis. For example, the production apparatus, which is considered as a set of means of labor, by means of which, in combination with other factors, production is carried out, is exposed to such circumstances as: lack of credit and financial resources for updating of equipment, machinery, mechanisms, buildings and structures; moral and physical wear of production fixed assets, which are obstacles to producing competitive products; reduction of demand for noncompetitive goods due to high costs and, consequently, high prices of production equipment and machinery.

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Schneider, Laura [Verfasser], Matthias [Akademischer Betreuer] Finkbeiner, and Michael Z. [Akademischer Betreuer] Hauschild. "A comprehensive approach to model abiotic resource provision capability in the context of sustainable development / Laura Schneider. Gutachter: Matthias Finkbeiner ; Michael Z. Hauschild. Betreuer: Matthias Finkbeiner." Berlin : Technische Universität Berlin, 2014. http://d-nb.info/1066163359/34.

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Khare, Janine. "Rehabilitation and reintegration outcomes following spinal cord injury in the UK." Thesis, Brunel University, 2014. http://bura.brunel.ac.uk/handle/2438/10914.

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Background: Spinal cord injury (SCI) is defined as a low incidence, high cost condition, however there is little information in the UK regarding the incidence, prevalence or associated costs of SCI. Additionally there is little evidence identifying outcomes or issues associated with delays in referral, admission or discharge from an SCIC or the impact of delays in provision of resources on reintegration outcomes. Research Aim: This novel study aims to determine factors and timings which may facilitate or limit successful rehabilitation and community reintegration for individuals with SCI. Map timescales and key indicators in the SCI injury and rehabilitation and reintegration pathways. Establish the impact of delays in provision of required resources on reintegration outcomes. Methods: An observational longitudinal study, collecting data regarding individuals from injury to one year post-discharge. Rehabilitation, reintegration and healthcare systems outcome measures to be evaluated were identified and included: community participation, quality of life, residential situation, readmission rate and vocational activity. Results: Delays in accessing services occur for a variety of issues and can have lasting impact. Many issues can affect progress and may have a more profound effect at particular points of the injury and rehabilitation pathway. At one year post discharge some subjects have fallen short of the identified outcomes; potential reasons for this are discussed in addition to issues that may have facilitated improved outcomes in some subjects. Conclusion: Some assumptions in SCI rehabilitation and reintegration have been challenged and some partially or fully supported. Novel findings have been identified in relation to physical social and psychological barriers or facilitators of outcomes following SCI. Potential areas for further research to increase our knowledge of issues for SCI individuals, SCIC services, acute hospital services and community services are identified.

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Contreras, Medrano Evelyn Edith. "Cursed by local institutions? An analysis of the role of institutions in the effects of natural resource abundance on the provision of public goods: evidence from peruvian municipalities." reponame:Repositório Institucional do FGV, 2016. http://hdl.handle.net/10438/18075.

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After decades of research, there is still no consensus in the literature regarding the effects of natural resource abundance on the economic and political performance of a territory. This research aims to contribute to this discussion, by analyzing the role of institutions on explaining the relationship between natural resource-based revenues and the provision of public goods at the local level. In order to do so, I test the mechanisms previously proposed in the literature for explaining the natural resource curse effect at the national level (mediation and moderation effects of institutional quality), using cross-sectional data of Peruvian municipalities located in the Andean highlands, for the 2011-2014 period. The identification strategy proposed uses as source of exogenous variation for revenues, the location of natural resources and its value among the territory, and a set of rules established by law for the redistribution of natural resource-based revenues to the local governments. In order to deal with the endogeneity of institutional quality, I include 2SLS estimations, using the presence of 'Peasant Communities' (Comunidades Campesinas) as an instrumental variable. The results show some evidence of a positive effect of natural resource-based revenues on the provision of local public infrastructure (water, public lightning and rural roads), a null effect on education results, and a negative effect on health campaigns. However, regarding the role of institutional quality on explaining these effects, I find no significant effects for all of the outcomes and samples analyzed.

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Chou, Tiang-Hong. "A Longitudinal Examination of How Hospital Provision of Home Health Services Changed after the Implementation of the Balanced Budget Act of 1997: Does Ownership Matter?" VCU Scholars Compass, 2009. https://scholarscompass.vcu.edu/etd/1985.

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By using a natural experiment approach and longitudinal national hospital data, this study sheds light on the objective functions of hospitals with different ownership forms by comparing their relative reductions in HH provision after the implementation of the BBA. The empirical findings reveal that for-profit hospitals behave differently as compared to public and private nonprofit hospitals, due to their different operational objectives. While the response of for-profit hospitals is consistent with the profit-maximizer model, both public and private nonprofit ownership types behave consistently in accordance with the model of two-good producers whose objective is to maximize market outputs for meeting the health care needs of the community, given the break-even requirement. This finding provides support for the tax exemption the United States government has granted private nonprofit hospitals. Although the response patterns of the nonprofit ownership types are in general similar, this study found that, contrary to expectation, religious hospitals were more likely than secular nonprofit hospitals to have reduced HH provision after the BBA. Further studies are needed to explore the difference in operational behaviors between these two ownership types. Built on previous related studies and applying a more comprehensive set of independent and control variables with improved data sources, this study is able to examine the effects of certain organizational and market factors on hospital offering of HH care pre-BBA and the change in the provision of HH care in the six years following the implementation of the BBA. Hospital proportion of Medicare patients, hospital size, total profit margin, case mix index, elderly density in the market are found to be positive determinants of a hospital’s likelihood of offering HH care. However, these organizational and market factors, in general, play a non-significant role in influencing hospitals’ changes in HH care provision after the implementation of the BBA. In the study, explanations and implications of these finding are discussed. Finally, potential limitations to this study and opportunities for future research are addressed.

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Бахишева, Н. В. "Банківські ресурси: формування та ефективне використання." Thesis, Одеський національний економічний університет, 2020. http://dspace.oneu.edu.ua/jspui/handle/123456789/12340.

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У роботі розглядаються теоретичні основи формування та використання банківських ресурсів; досліджені поняття, структура та джерела формування банківських ресурсів; надана характеристика ресурсної політики як інструменту управління процесом залучення фінансових ресурсів банку; розглянуті методи оцінки ефективності використання банківських ресурсів. Проаналізовано сучасні аспекти формування ресурсної бази банку в сучасних умовах; надана оцінка достатності власного капіталу банку; досліджений склад та динаміки запозичених коштів банку; зроблений аналіз депозитного портфелю як джерела фінансових ресурсів банку. Запропоновано напрями ефективного використання фінансових ресурсів банку; надана комплексна оцінка оптимального використання депозитних та недепозитних джерел банківських ресурсів; зроблено моделювання впливу факторів клієнтського капіталу на доходи банків.
Diploma thesis deals with the theoretical foundations of the formation and use of banking resources; the concept, structure and sources of the formation of banking resources are investigated; the characteristic of the resource policy as a tool for managing the process of attracting financial resources of the bank is given; the methods of assessing the efficiency of using bank resources are considered. The modern aspects of the formation of the resource base of the bank in modern conditions are analyzed; an assessment of the bank's equity adequacy is provided; studied the composition and dynamics of borrowed funds of the bank; the analysis of the deposit portfolio as a source of financial resources of the bank is made. The directions of effective use of financial resources of the bank are offered; a comprehensive assessment of the optimal use of deposit and non-deposit sources of bank resources; modeling of influence of factors of the client capital on incomes of banks is made.

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Bernhoff, Arthur. "Strength in a weakened state : interpreting Hizb’allah's experiences as a social movement and governing coalition in Lebanon 1985-2013." Thesis, University of St Andrews, 2015. http://hdl.handle.net/10023/6729.

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This study investigates Hizb'allah's successful but competing dual development as an extra-institutional Shi'a social movement and an institutional political party. Hizb'allah has traditionally been studied from the perspective of one of its many natures, such as a social movement, Islamic movement, resistance, or political party, each perspective bringing with it limitations and differing interpretations of its identity, motivations, and success. The motivation behind this research was to seek an interpretation of the movement's development and success that would encompass these multiple natures. Through an interpretation of social movement ‘life-cycles', a social movement ‘development model' is proposed that accounts for contradicting theories on the ‘success' of social movements, interpreting success instead as an ability to exhibit simultaneous institutional and extra-institutional natures. The hypothesis provided in this work is that it is an ability to simultaneously exhibit institutional and extra-institutional natures that can be a source of strength and success for a movement, drawing capital from both while avoiding accountability that typically accompanies institutional politics. This challenges traditional theoretical approaches in terms of linear life-cycles with few paths for the social movement to choose from. In turn, questions arise regarding notions of social movement life-cycles being uni-directional, continuously progressing towards ‘institutionalization' or demise. Ideas of an ‘end-date' or ‘inevitable outcome' of social movements are also confronted. This interdisciplinary study is conducted by means of media, archival, and empirical research (participant observation, interviews, and surveys), focusing on changing constituent perceptions of the movement between 1985 and 2013. It is also argued that Hizb'allah's strength is its ability to draw from both extra-institutional and institutional resources while simultaneously avoiding accountability. However, it was also found that, by forming the 2011 governing coalition, the movement upset this balance by subjecting itself to accountability inherent in governance, in turn leading to ‘schizophrenic behaviour' as Hizb'allah sought to serve conflicting constituent and state interests. The significance of this research is that it not only provides an explanation for Hizb'allah's success, but also provides an interpretation of social movement development that accounts for multi-natured movements.

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Shi, Ling. "Resource Optimization for Networked Estimator with Guaranteed Estimation Quality." Thesis, 2009. https://thesis.library.caltech.edu/3252/1/Ling_Shi_thesis.pdf.

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Advances in fabrication, modern sensor and communication technologies, and computer architecture have enabled a variety of new networked sensing and control applications. However, many difficulties are inherent with these systems, for example, the constrained communication and computation capabilities, and limited energy resources, which are frequently seen in a wireless sensor network. As a consequence, the networks typically induce many new issues such as limited bandwidth, packet loss, and delay. Estimation and control over such networks thus require new design paradigms beyond traditional sampled-data control, as the aforementioned constraints undoubtedly affect system performance or even stability. In this thesis work, I consider the problem of state estimation over networks. As communication, computation, and energy are scarce resources in such networks, I focus on optimizing the use of them. When the state estimation is carried out over a sensor network, I consider the problem of minimizing the sensor energy usage and maximizing the network lifetime. When the state estimation is carried out over a packet-delaying network, I consider the problem of minimizing the buffer length at the remote state estimator. In each scenario, a certain desired level of estimation quality is guaranteed.

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Kuo, Ming-Shing, and 郭明鑫. "Power Optimization for Data Center Through Resource-guaranteed VM Placement." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/00969300727953530426.

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碩士
國立臺灣大學
資訊工程學研究所
100
In a data center, virtual machines (VMs) not only require the server resource(e.g., CPU, memory) but also might generate a lot of network traffic among themselves. Existing research works on VMs placement are focusing on (1) how to place VMs to minimize server energy consumption without considering consumption of network resources; or (2) how to minimize inter-VM network traffic without considering energy consumption. In this work,we tackle the power saving issue of data centers from the point of view of VM placement as well; but, our idea is to address VM placement problem by joint consideration of both server and network energy consumption for minimizing total power consumption of a data center. First, we validate that the network power consumption plays an important part on the total power consumption of a data center by analyzing the data center architectures and the power benchmark of IT equipments. Next, we propose an energy-aware VM placement algorithm, called GreenGlue, which jointly optimizes the power consumed by servers and switches. GreenGlue is able to address (1) initial VM placement issue, in which VM requests are given and no running VM exists in a data center, and (2) adaptive VM placement issue, in which VM request arrivals and resource demands are dynamic over time. Furthermore, an optimal (initial or adaptive) VM placement model is derived via the mixed integer linear programming. Finally, we present a comprehensive performance study via simulation with different scenarios generated by synthetic and real traffic traces. The results show that GreenGlue can perform better than existing VM placement schemes in terms of the power saving and the rate of finding feasible placement.

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Chung, Yao-Hsing, and 鍾耀興. "QoS-guaranteed Radio Resource Allocation Schemes for Multimedia OFDMA Mobile Communication Networks." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/3d96vg.

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博士
國立交通大學
電信工程研究所
101
This dissertation is aimed at resource allocation issues in multimedia orthogonal frequency division multiple access (OFDMA) mobile communication networks, where the issues include channel-state-information (CSI) overhead reduction, balance between system throughput maximization and quality-of-service (QoS) guarantee, and inter-cell interference (ICI) alleviation of multicell environment. First, we propose an economized-CSI opportunistic scheduling (ECOS) scheme. The ECOS scheme consists of a quality-of-service (QoS) guarantee scheduling (QGS) algorithm and a CSI overhead reduction (COR) algorithm. The QGS algorithm fulfills QoS requirements by dynamic priority value adjustment, while the COR algorithm reduces the amount of CSI overhead by limiting the number of feedback users. Simulation results show that the proposed ECOS scheme greatly reduces the uplink bandwidth occupancy of CSI feedback. Also, it achieves high system throughput and maintains QoS guarantee at high traffic load. Second, we propose a balanced resource scheduling (BRS) scheme to balance tradeoff between QoS requirement guarantee and system throughput maximization. Based on the adaptive priority threshold of each user, the BRS scheme schedules users by a priority-based resource allocation algorithm and a CSI-based resource allocation algorithm to guarantee QoS and enhance throughput, respectively. Most important, we propose a fuzzy inference priority threshold generator (FIPG) to adaptively and intelligently adjust the priority thresholds to strike the excellent balance. Simulation results show that the proposed BRS scheme with adaptive priority threshold achieves higher system throughput than conventional resource allocation schemes under a QoS requirement guarantee. Finally, we propose a multiple-point fractional frequency reuse (MFFR) strategy and a multiple-point coordination resource allocation (MCRA) scheme to improve system throughput and guarantee QoS in multicell environment. The MFFR strategy employs a multiple-point deployment and an enhanced FFR to effectively overcome the pathloss and alleviate the inter-cell interference (ICI), respectively, while the MCRA scheme is developed to solve the intra-cell interference brought by the MFFR strategy, maximize system throughput, and fulfill QoS requirements by coordinating multiple transmission points. Simulation results show that the MCRA scheme can attain higher system throughput and cell edge user throughput than the conventional resource allocation schemes. More important, by guaranteeing service opportunity of users, the MCRA scheme is capable to satisfy QoS requirements of real-time and non-real-time users in the multicell environment.

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Zheng, Chih-Yuan, and 鄭期元. "Detection-Performance Guaranteed Resource Allocation for Downlink Multicarrier Non-Orthogonal Multiple Access Systems." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/889dvb.

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CHENG, KAI-CHUNG, and 鄭凱中. "QoS-Guaranteed Radio Resource Management in LTE-A Co-channel Networks with Dual Connectivity." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/972nvj.

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碩士
國立中正大學
資訊工程研究所
104
In recent years, with the mobile communication technology towards 5G, the standards of mobile communication continue to evolve. In the Release 10 of 3GPP, the heterogeneous network (HetNet) architecture was proposed to increase the spectrum efficiency by deploying base stations with different transmission power. However, the development of HetNet still facing many challenges, including cell selection, resource allocation, inter-cell interference coordination and so on. In order to improve the efficiency of the small cells, 3GPP Release 12 proposed a Dual Connectivity technology that allows one user equipment to connect two different base stations at the same time, to increase the flexibility of resource utilization. On the other hand, different user equipment tends to have different bandwidth requirements. In Dual Connectivity, a challenging issue is how to integrate resources from two stations to enhance the quality of service (QoS) as well as data transfer rate of each user equipment. In this thesis, we proposed novel resource management mechanisms to improve the quality of service of user equipment in the co-channel dual connectivity network. In terms of resource allocation, we designed the Max-min Threshold Scheduler (MTS) which, in principle, allocates a resource block to the user equipment with the best channel quality while considering the issues of inter-cell resource allocation and the QoS requirement of each user equipment. In order to balance the load of different cells, we designed a novel cell selection scheme based on the HeNB Congestion Indicator (HCI) which considers not only the signal quality of user equipment but also the remaining resources of each base station. To improve the QoS of cell edge user equipment, Cell Range Expansion (CRE) and the Almost Blank Subframe (ABS) were proposed in 3GPP. In this thesis, based on Q-learning, we designed an adaptive mechanism which dynamically adjusts the ABS ratio according to the environmental conditions to improve resource utilization. The ultimate goal of the proposed mechanisms is to improve the quality of service satisfaction rate of user equipment. Our simulation results showed that our MTS scheduler is able to achieve 31.44% higher rate than the Proportional Fairness scheduler; our HCI cell selection scheme yields 2.98% higher rate than the SINR cell selection scheme; the QoS satisfaction rate of our Q-learning dynamic ABS scheme is 4.06% higher than that of the Static ABS scheme. Finally, by integrating the mechanisms of Dual Connectivity, CRE and ABS, the QoS satisfaction rate of cell edge user equipment can be increased by 10.76% as compared to the traditional approach.

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Tzeng, Show-Shiow, and 曾秀松. "Resource Management and QoS Provision in Micro/Picocellular Wireless Networks." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/89892100018699570406.

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博士
國立清華大學
資訊工程學系
93
Radio resource is scarce in wireless networks. From the perspective of the wireless system, it is desirable to make efficient use of the radio resource. From the viewpoint of mobile users, it is required that quality of service (QoS) provided by the system should be as high as possible. It is essential to develop resource management schemes for wireless networks such that the utilization of radio resource is efficient while good QoS is provided for mobile users. In this dissertation, we address technical issues on radio resource allocation and QoS provision in micro/picocellular wireless networks. First of all, we focus on cluster-based micro/picocellular wireless networks, in which the collection of cells covered by the base stations under the control of a switch is called a cluster. We propose a call admission control policy that employs two levels of admission thresholds: one at the cell level and the other at the cluster level. An analytical method is developed to analyze the performance of the proposed policy. Compared with call admission policies that employ a single threshold either at the cell level or at the cluster level under the condition that the policies provide the same predetermined maximum level of call hand-off dropping probability, the proposed call admission policy provides significantly higher throughput. The concept of overlap clusters has been suggested in previous literature to prevent frequent cluster hand-offs that occur when mobile users move back and forth between the clusters. However, cluster channel assignment in overlap clusters and hand-off policies in overlap areas have never been studied before. We propose two cluster channel assignment policies, and two hand-off policies. The proposed cluster channel assignment policies and hand-off policies are combined to obtain three different strategies, namely, partitioned-boundary, partitioned-early, and shared-boundary strategies. Simulation results show that the partitioned-early and shared-boundary strategies produce significantly lower hand-off dropping probability than the partitioned-boundary strategy. Besides studying overlap areas between clusters, we also study overlap areas between cells. It is unavoidable that overlap areas exist between adjacent cells in order for mobile users to gain services from anywhere in the service areas of cellular wireless networks. We study two techniques in the environment that neighbor cells overlap with each other. One is channel rearrangement technique that enables a mobile user in the overlap area to handoff to another cell, such that the released channel(s) can be used by a new user or a handoff user. The other is bandwidth adaptation that selects a subset of mobile users and adjusts the bandwidth allocated to the mobile users in order to achieve certain goal. We propose optimal channel rearrangement and optimal bandwidth adaptation schemes for multiclass traffic in cellular wireless networks. The optimal channel rearrangement and the optimal bandwidth adaptation schemes significantly improve QoS and carry more traffic. Finally, we address radio resource management in a cell. We consider existing TDD based packet reservation multiple access (PRMA) protocol and its variations, which enable mobile terminals to transmit and receive packets to and from a centralized base station on a shared radio medium. Two PRMA based schemes are proposed in this dissertation. One is slanted frame arrangement scheme that enables a mobile terminal to switch among different frequency carriers such that shorter time is required to obtain a slot at the beginning of a talk spurt or a burst of data. The other is dynamic non-collision PRMA (DNC-PRMA) that dynamically allocate control mini-slots to mobile terminals such that the channel throughput is increased dramatically. Simulation results show that the slanted frame arrangement scheme and the DNC-PRMA significantly improve performance.

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43

Chang, Ting-Wei, and 張庭維. "Resource Provision for Batch and Interactive Workloads in Data Centers." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/01111730800533964948.

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碩士
國立臺灣大學
資訊工程學研究所
103
In this paper we describe a scheduling framework that allocates resources to both batch jobs and interactive jobs simultaneously in a private cloud with a static amount of resources. In the system, every job has an individual service level agreement (SLA), and violating the SLA incurs penalty. We propose a model to formally quantify the SLA violation penalty of both batch and interactive jobs. The analysis on the interactive jobs focuses on queuing analysis and response time. The analysis on batch jobs focuses on the non-preemptive job scheduling for multiple processing units. Based on this model we also propose algorithms to estimate the penalty for both batch jobs and interactive jobs, and algorithms that reduce the total SLA violation penalty. Our experiment results suggest that our system effectively reduces the total penalty by allocating the right amount of resources to heterogeneous jobs in a private cloud system.

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44

Chi, Po-Yang, and 紀博洋. "Vertical profiling monitor and fine-grained resource provision for virtualized server management." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/43198230561708293215.

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碩士
國立交通大學
資訊科學與工程研究所
103
With the popularity of microserver and virtualization technology, private cloud has already become a good choice to provide network service or parallel computing power. Compare to public cloud enviroment, ununified hardware resource and irregular network topology is the feature of privte cloud. For virtualized resource management, previous works are mostly focusing on ether the hardware resource monitor and provision based on single host or resource balancing and virtual machine(VM) migration on public cloud, private cloud enviroment is seldom mentioned. In this paper, we implement a virtualized server management system which uses vertical profiling monitor to estimate the Quality of service (QoS) of VM then uses this information providing fine-grained resource provision, finally achieve high performance or power saving management.

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45

Hsiao, Shih-Lun, and 蕭世倫. "A Resource Allocation Method Base on Cross-Entropy Algorithm with Guaranteed QoS in Multi-Cell OFDMA Systems." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/89011397381607233029.

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碩士
國立中山大學
電機工程學系研究所
100
In multi-cell downlink OFDMA radio network system, users in one cell would suffer from the inter-cell interference caused by frequency reuse, namely co-channel interference. For a practical system, the inter-cell interference seriously decreases the quality of communication, especially for cell-edge users. Therefore, some interference management techniques, such as resources allocation, beamforming…etc., will become an important issue in this system. Therefore, how to allocate resources to enhance cell-edge user performance and total system throughput is the major problem of our research. In this thesis, for management the inter-cell interference in multi-cell downlink OFDMA radio network system, a power allocation method based on the Cross-Entropy algorithm is proposed to find the sub-optimal solution and corresponding subcarriers allocation. In the system, it is considered that a sum-rate maximization problem while satisfying the target rate of both cell-edge users and cell-interior users. The simulation results show that the proposed method can effectively reduce interference between cells, and increases the transmission performance of cell-edge users and overall system throughput.

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46

Cheng, Ya-Hsuan, and 鄭雅瑄. "QoS-Guaranteed Channel-Aware Scheduling and Resource Grouping under Non-Full Buffer Traffic for LTE-A Networks." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/43138516278152325403.

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47

"Proposal of schemes based in CAC and resource reservation to QoS provision in cellular mobile networks with support to multimedia traffic." Tese, Biblioteca Digital da Universidade Federal de Uberlândia, 2005. http://www.bdtd.ufu.br//tde_busca/arquivo.php?codArquivo=149.

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48

Buchholz, Irmera. "Provision of access to information in academic libraries in Southern Africa : two case studies." Diss., 2011. http://hdl.handle.net/10500/4794.

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Information and communications technology (ICT) makes remote access to information possible. Resource sharing facilitates the provision of access to information sources not owned by an individual library. Case studies were conducted at the University of South Africa and University of Namibia libraries to explore the provision of access to information in academic libraries in southern Africa through collection development, resource sharing and acquiring remote access to electronic resources through ICT facilities. It was found that both libraries have recently adapted their collection development policies to accommodate electronic resources although their budgets did not increase accordingly. The recruitment of ICT knowledgeable staff tends to be a problem at both libraries. Resources are shared via interlending and document supply with Unisa Library as a model in southern Africa. Both libraries add their holdings to the national bibliographies and Sabinet and are members of GAELIC. However, the UNAM library is a passive partner. A consortium within Namibia’s borders is suggested to improve resource sharing.
Information Science
M. A. (Information Science)

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49

Buchholz, Irmera. "Provision of access to information in academic libraries in Southern Africa : the case study." Diss., 2011. http://hdl.handle.net/10500/4794.

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Information and communications technology (ICT) makes remote access to information possible. Resource sharing facilitates the provision of access to information sources not owned by an individual library. Case studies were conducted at the University of South Africa and University of Namibia libraries to explore the provision of access to information in academic libraries in southern Africa through collection development, resource sharing and acquiring remote access to electronic resources through ICT facilities. It was found that both libraries have recently adapted their collection development policies to accommodate electronic resources although their budgets did not increase accordingly. The recruitment of ICT knowledgeable staff tends to be a problem at both libraries. Resources are shared via interlending and document supply with Unisa Library as a model in southern Africa. Both libraries add their holdings to the national bibliographies and Sabinet and are members of GAELIC. However, the UNAM library is a passive partner. A consortium within Namibia’s borders is suggested to improve resource sharing.
Information Science
M. A. (Information Science)

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50

Hsuan-ChunLin and 林鉉竣. "Design and Modeling of Arrival Variance-based Methods for Resource Provision and Allocation Management with Heterogeneous Types of VMs in Cloud Computing Systems." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/39131337098104937901.

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碩士
國立成功大學
製造資訊與系統研究所
102
In this paper, we discuss how to decide SaaS vendor resources size and type under different user behavior, lead to average total cost minimum. We propose ``Arrival Variance-based Methods for Resource Provision and Allocation Management with Heterogeneous Types of VMs' according to the average user arrivals determine the size of the resource pool and virtual machines type ratio within cloud service providers to achieve goal. We designed a series of experiments to support our idea is correct and experiments results show our methods is significant.

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Dissertations / Theses on the topic 'Guaranteed provision of a resource'

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