Дисертації з теми "Large-scale study"
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Gilbert, Candace June. "Large-scale portfolio assessment: Pitfalls and pathways." CSUSB ScholarWorks, 1999. https://scholarworks.lib.csusb.edu/etd-project/1524.
Повний текст джерелаAivars, Sablis. "Benefits of transactive memory systems in large-scale development." Thesis, Blekinge Tekniska Högskola, Institutionen för programvaruteknik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-11703.
Повний текст джерелаSingh, Babita 1986. "Large-scale study of RNA processing alterations in multiple cancers." Doctoral thesis, Universitat Pompeu Fabra, 2017. http://hdl.handle.net/10803/572859.
Повний текст джерелаEl procesamiento del ARN y sus alteraciones son determinantes para entender el fenotipo de las células en condiciones normales y de enfermedad. En particular, alteraciones en el procesamiento de ARN de determinados genes se han vinculado a características distintivas del cáncer ampliamente aceptadas. Con la disponibilidad de datos genómicos y transcriptómicos a gran escala paramúltiples tipos de cáncer, es posible abordar cuestiones ambiciosas como la obtención de una visión global de las alteraciones en el procesamiento de ARN que son específicas para cada tipo de cáncer, así como de aquellas las comunes a varios tipos. El primer objetivo de esta tesis es obtener una visión global de las alteraciones del procesamiento de ARN en diferentes tipos de tumores, así como de las alteraciones en las proteínas de unión a ARN (componente trans), y si dichas alteraciones resultan en un procesamiento diferencial del RNA. Utilizando datos de más de 4000 pacientes para 11 tipos de tumores, establecemos la relación entre las alteraciones de las proteínas de unión a ARN y cambios de splicing en múltiples tipos de tumores. El segundo objetivo va un paso más allá y explora en detalle las alteraciones del procesamiento de ARN con respecto a mutaciones en las secuencias reguladoras del ARN (componente cis). Utilizando datos de genomas completos para más de 1000 pacientes, estudiamos a fondo la secuencia de genes para identificar regiones cortas significativamente mutadas en partes codificantes y no codificantes por proteína, y que además están enriquecidas en posibles sitios reguladores del ARN, incluyendo regiones intrónicas profundas. La recurrencia de las mutaciones en algunas regiones no codificantes es comparable a la de algunos genes drivers de cáncer conocidos. Además, analizamos el impacto de estas mutaciones a nivel del ARN mediante el uso de datos de secuenciación de ARN de las mismas muestras. Este trabajo propone una estrategia novedosa y potente para estudiar las mutaciones en cáncer con el fin de identificar nuevos mecanismos oncogénicos. Además, compartimos la inmensa cantidad de datos generados en estos análisis para que otros investigadores los puedan estudiar en detalle y validarlos experimentalmente.
Monroe, James T. "A large-scale modeling study of the California current system." Monterey, California. Naval Postgraduate School, 1997. http://hdl.handle.net/10945/8607.
Повний текст джерелаA high resolution, multi-level, primitive equation ocean model is used to investigate the combined role of wind forcing, thermohaline gradients, and coastline irregularities on the formation of currents, meanders, eddies, and filaments in the California Current System (CCS) from 22.5 deg N to 47.5 deg N. An additional objective is to further characterize the formation of the Davidson Current, seasonal variability off Baja California, and the meandering jet south of Cape Blanco. The model includes a realistic coastline and is forced from rest using climatological winds, temperatures, and salinities. The migration pattern of the North Pacific Subtropical High plays a significant role in the generation and evolution of CCS structures. In particular, variations in wind stress induce flow instabilities which are enhanced by coastline perturbations. An inshore train of cyclonic eddies, combined with a poleward undercurrent of varying seasonal depths, forms a discontinuous countercurrent called the Davidson Current north of Point Conception. Off Baja, the equator-ward surface jet strengthens (weakens) during spring and summer (fall and winter). Model results also substantiate Point Eugenia as a persistent cyclonic eddy generation area. The model equator-ward jet south of Cape Blanco is a relatively continuous feature, meandering offshore and onshore, and divides coastally influenced water from water of offshore origin
El, Khatib Dounia. "Municipal Solid Waste in Bioreactor Landfills: A Large Scale Study." University of Cincinnati / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1289943004.
Повний текст джерелаJoshi, Prakash. "A Comparative Study Of Large-Scale Network Data Visualization Tools." ScholarWorks@UNO, 2018. https://scholarworks.uno.edu/honors_theses/108.
Повний текст джерела余學東 and Hok-tung Dion Yu. "A study of the large scale redevelopment concept in urban redevelopment." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2002. http://hub.hku.hk/bib/B43895001.
Повний текст джерелаIwashita, Takeshi. "Study on Stabilization of Large-Scale Coal-Fired Linear MHD Generators." Kyoto University, 1997. http://hdl.handle.net/2433/77867.
Повний текст джерелаPisetta, de Oliveira Maria. "Integrating batteries with large-scale wind power: a Canadian case-study." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-278074.
Повний текст джерелаKanada är ett land med en hög andel fossilfri elproduktion då 80 % av elektricitetenkommer från vattenkraft, kärnkraft eller förnybara källor. Delstaten Alberta har dock entill största delen fossilbaserad elproduktion och kommer därför investera i förnybarelproduktion de kommande åren. Den ökade mängden förnybar variabel elproduktionkan innebära en bra investeringsmöjlighet för batterier för energilagring. I dennauppsats undersöks inkomsterna för ett batteri som används på Albertas elmarknad,antingen på den vanliga marknaden som körs i realtid, reglermarknaden eller enkombination av båda marknaderna. För att förstå hur vindkraft skulle påverka driftenav batteriet analyseras sedan dessa strategier under förutsättningen att batterietladdas med den variabla produktionen från en vindkraftpark. För alla dessa strategiervar schemat för laddningen av batteriet bestämt i förväg. Som jämförelse analyserasden optimala driften av batteriet under förutsättningen att man har tillgång till perfektinformation och möjlighet att optimera driften mellan de nämnda marknaderna.
Biwole, Pascal Henry. "Large scale particle tracking velocimetry for 3-dimensional indoor airflow study." Lyon, INSA, 2009. http://theses.insa-lyon.fr/publication/2009ISAL0070/these.pdf.
Повний текст джерелаAlors que la majorité des méthodes actuelles de suivi Lagrangien de particules ne permettent que la mesure d'écoulements 2D ou 3D à petite échelle, le présent document décrit un algorithme complet de suivi Lagrangien 3D en grand champ. Des bulles de savon gonflées à l'hélium servent de traceurs. L'éclairement est fourni par des sources continues de type halogènes. Des cameras synchrones sont préalablement calibrées suivant des algorithmes connus afin d'avoir un repère 3D commun. Apres suppression du fond, une procédure spéciale supprime les larges spots créées par les images des bulles se rapprochant des caméras. Les centres de masse des bulles restantes sont ensuite calculés. Le suivi temporel se fait soit par corrélation croisée, soit par régression linéaire tempéré par l'emploi d'un critère de qualité. La triangulation 3D se fait par une méthode de moindres carrés. L'algorithme complet est testé dans plusieurs configurations : dans une cellule expérimentale de taille 3. 1mx3. 1mx2. 5m aux parois gris clair ; (ii) dans une salle de taille 5. 5mx3. 7mx2. 4m aux parois noires ; (iii) au dessus d'une source de chaleur; (iv) à l'intérieur d'une maquette d'avion de taille réelle; (v) dans un réservoir 100cmx100cm 100cmx rempli d'une solution aqueuse en utilisant une lumière continue et des particules creuses de 10um de large. Dans chaque cas, des lignes directrices sont données pour un positionnement optimal des cameras et des sources de lumière. Les résultats montrent que l'algorithme est capable de suivre plus de 1400 traceurs dans des volumes allant jusqu'a 3mx3mx1. 2m
Yu, Hok-tung Dion. "A study of the large scale redevelopment concept in urban redevelopment." Hong Kong : University of Hong Kong, 2002. http://sunzi.lib.hku.hk/hkuto/record.jsp?B2524839x.
Повний текст джерелаTomori, Opeoluwa. "Feasibility study of a large scale biogas plant in Lagos, Nigeria." Thesis, Tomori, Opeoluwa (2012) Feasibility study of a large scale biogas plant in Lagos, Nigeria. Masters by Coursework thesis, Murdoch University, 2012. https://researchrepository.murdoch.edu.au/id/eprint/17325/.
Повний текст джерелаConstantinescu, Gabriel Cristian. "Large-scale density functional theory study of van-der-Waals heterostructures." Thesis, University of Cambridge, 2018. https://www.repository.cam.ac.uk/handle/1810/274876.
Повний текст джерелаThompson, David John. "Large-Scale Display Interaction Techniques to Support Face-to-Face Collaboration." Thesis, University of Canterbury. Computer Science and Software Engineering, 2006. http://hdl.handle.net/10092/1192.
Повний текст джерелаBelay, Eyuel. "Challenges of Large-ScaleSoftware Testing and the Role of Quality Characteristics : Empirical Study." Thesis, Linnéuniversitetet, Institutionen för datavetenskap och medieteknik (DM), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-93124.
Повний текст джерелаDasiyici, Mehmet Celal. "Multi-Scale Cursor: Optimizing Mouse Interaction for Large Personal Workspaces." Thesis, Virginia Tech, 2008. http://hdl.handle.net/10919/32706.
Повний текст джерелаMaster of Science
Wahl, Emil. "Reflecting and adjusting in large-scale Agile software development : A case study." Thesis, Blekinge Tekniska Högskola, Fakulteten för datavetenskaper, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-19676.
Повний текст джерелаBakgrund. Agil mjukvaruutveckling har sett en ökad användning i storskaliga projekt under den senaste tiden. Många större företag övergår från att använda en traditionell plandriven strategi för att utveckla programvara till att tillämpa den Agila metodiken i sina processer. Det finns många utmaningar när man använder den Agila metodiken i ett storskaligt projekt. Agila projekt på stor skala är svårt att genomföra, och många Agila ramverk har utvecklats för att göra det lättare att tillämpa den Agila metodiken på stor skala. Den Agila principen att reflektera och justera med jämna mellanrum kan användas för att utveckla dessa ramverk och gör det möjligt för utövare att hitta sätt att tackla de utmaningar som storskaliga Agila projekt står inför. Syfte. Denna avhandling undersöker hur ett storskaligt Agilt projekt tillämpar den Agila principen att reflektera och justera sin arbetsprocess, både på en övergripande nivå och teamnivå. Målet med avhandlingen är att ta reda på hur organisationen regelbundet reflekterar över sin arbetsprocess och hur den möjliggör justeringar genom fördelning av roller som kan verkställa förändringarna. Ett ytterligare mål är att ta reda på vilka upplevda utmaningar som är förknippade med att utföra regelbundna reflektioner och justeringar i ett storskaligt Agilt sammanhang. Metod. En fältstudie genomförs på ett storskaligt Agilt projekt. Fältstudien inkluderar direkta observationer av det dagliga arbetet och schemalagda möten, intervjuer med projektdeltagare, och läsa företagetsdokumentation. Den insamlade datan analyseras tematiskt för att identifiera hur organisationen reflekterar och justerar sin arbetsprocess och de upplevda utmaningarna som relaterar till det. Resultat. Organisationen använder sig av tre olika sätt för att tillämpa den Agila principen för reflektion och justering: referensgrupper för att reflektera över större frågor som påverkar stora delar av projektet, retrospektiva möten i viss mån för att reflektera i de olika teamen, och dagliga reflektioner. Alla identifierade roller kan influera förändring på processen, men kan bara verkställa förändringar på sin del av processen. Sex teman identifieras som upplevda utmaningar förknippade med den Agila principen att reflektera och justera: Tidsfrister och tidsgränser, flera uppgifter inom teamen, ointresse eller missförståelse av de Agila principerna, olika nivåer av Agile, och etablerad process och självgodhet. Slutsatser. Organisationen tillämpar flera olika funktioner för reflektion som hanterar några av de utmaningar som är förknippade med storskaliga Agila projekt. Organisationen har många andra utmaningar relaterade till dessa funktioner och de är alla förknippade med andra utmaningar som tidigare upptäckts i relaterade arbeten.
Saltzman, Ashley Joelle. "Spatiotemporally-Resolved Velocimetry for the Study of Large-Scale Turbulence in Supersonic Jets." Diss., Virginia Tech, 2021. http://hdl.handle.net/10919/101813.
Повний текст джерелаDoctor of Philosophy
During takeoff, the intense noise emitted from tactical supersonic aircraft exposes personnel to dangerous risks of noise-induced hearing loss. In order to develop noise-reduction techniques which can be applied to these aircraft, a better understanding of the links between the jet flow and sound is needed. Laser-based diagnostics present an opportunity for studying the flow-field through time and space; however, achieving both temporal and spatial resolution is a technically challenging task. The research presented herein seeks to develop a diagnostic technique which is optimized for the study of turbulent structures which dominate jet noise production. The technique, Doppler global velocimetry (DGV), uses the Doppler shift principle to measure the velocity of the flow. First, the ability of DGV to measure the three orthogonal components of velocity is demonstrated, acquiring data at 250 kHz. Since turbulent structures in heated jets can be correlated over long distances, the effects on measurement error due to a large field-of-view measurement are investigated. The work suggests that DGV can be an invaluable tool for the discussion of turbulence and aeroacoustics, particularly for the consideration of full-scale measurements. Finally, a large-scale velocity measurement resolved in time and space is demonstrated on a heated supersonic jet and used to make observations about the turbulence structure of the flow field.
Ardekani, Kamyar. "Feature Recommender : a large-scale in-situ study of proactive software feature recommendations." Thesis, University of British Columbia, 2016. http://hdl.handle.net/2429/59761.
Повний текст джерелаScience, Faculty of
Computer Science, Department of
Graduate
Gong, Zhixiong, and Feng Lyu. "Technical debt management in a large-scale distributed project : An Ericsson case study." Thesis, Blekinge Tekniska Högskola, Institutionen för programvaruteknik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-14803.
Повний текст джерелаAtcheson, Mairéad. "A large-scale model experimental study of tidal turbines in uniform steady flow." Thesis, Queen's University Belfast, 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.602411.
Повний текст джерелаPalmeira, Ennio Marques. "The study of soil-reinforcement interaction by means of large scale laboratory tests." Thesis, University of Oxford, 1987. http://ora.ox.ac.uk/objects/uuid:88588438-fbf0-4d4f-a25c-21c24fcfebd0.
Повний текст джерелаRaford, Noah (Noah A. ). "Large scale participatory futures systems : a comparative study of online scenario planning approaches." Thesis, Massachusetts Institute of Technology, 2011. http://hdl.handle.net/1721.1/68444.
Повний текст джерелаCataloged from PDF version of thesis.
Includes bibliographical references (p. 224-231).
This dissertation explores the role that participatory online collective intelligence systems might play in urban planning research. Specifically, it examines methodological and practical issues raised by the design and use of such systems in long-term policy formulation, with a focus on their potential as data collection instruments and analytical platforms for qualitative scenario planning. The research questions addressed herein examine how the use of collective intelligence platforms informs the process of scenario planning in urban public policy. Specifically, how (if at all) does the design and deployment of such platforms influence the number and type of participants involved, people's reasons for participation, the kinds of activities they perform, and the speed and timeline of the scenario creation process? Finally, what methodological considerations does the use of such instruments raise for urban planning research in the future? In-depth interviews with experts in the fields of urban planning, public participation, crowdsourcing, and scenarios were conducted, combined with secondary analysis of comparable approaches in related fields. The results were used to create an analytical framework for comparing systems across a common set of measurement constructs. Findings were then used to develop a series of prototypical online platforms that generated data for two related urban planning cases. These were then analyzed relative to a base case, using the framework described above. The dissertation closes with a reflection on how the use of such online approaches might impact the role and process of qualitative scenario research in public policy formulation in the future, and what this suggests for subsequent scholarly inquiry.
by Noah Raford.
Ph.D.
Ariizumi, Tatsuyuki. "Evaluation of large scale industrial development using real options analysis : a case study." Thesis, Massachusetts Institute of Technology, 2006. http://hdl.handle.net/1721.1/37438.
Повний текст джерелаThis electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
Includes bibliographical references (leaves 67-69).
Recently, real-option analysis has gained attention as an innovative valuation method for complex real estate projects. However, considering its potential, this method has not become as popular as it should have. One major reason may be its complexity, and perhaps, its effectiveness is not yet widely known in the industry. Accumulating high-quality case studies can help demonstrate the effectiveness of any theory. Case studies can also help standardize the application process, providing guidelines that help people use the model more easily. In addition, it can reveal and provide solutions for various types of properties, and the means to accommodate the specifics of real-world problems met while applying the model. This case study deals with a large-scale industrial development project, which is suitable for the application of the real-option model. Usually industrial developers obtain large sites and then develop them in a phased manner. This allows them the freedom to choose phase timing and to modify their initial building plans more freely than with other types of property development.
(cont.) This flexibility adds certain amount of value to the land. We found that, with some modifications, the real-option model is fairly effective when applied to large-scale industrial development. The model facilitates more precise valuations of land by taking into account various options, such as waiting for better timing and selling the vacant land as is. This study also offers a method to analyze the proper timing of each phase's commencement-a useful decision-making tool for the developer.
by Tatsuyuki Ariizumi.
S.M.
Domike, Kristin Rebecca. "A study of large-scale aggregation mechanisms and kinetics of β-lactoglobulin protein". Thesis, University of Cambridge, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.612242.
Повний текст джерелаMcEwan, Robert. "Interdisciplinary study of hydrodynamic and biogeochemical processes of a large-scale river plume." Thesis, University of Plymouth, 2013. http://hdl.handle.net/10026.1/1551.
Повний текст джерелаSouza, Daniel Sampaio. "Numerical study of the large scale turbulent structures responsible for slat noise generation." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/18/18148/tde-27112017-092717/.
Повний текст джерелаAs principais fontes de ruído não propulsivo em aeronaves comerciais são os trens-de-pouso e os dispositivos híper-sustentadores. Entre os dispositivos híper-sustentadores, o eslate se destaca por constituir uma fonte distribuída ao longo da envergadura da asa. Durante a fase de aproximação e aterrissagem, o eslate pode gerar ruído com níveis comparáveis ao gerado pelos motores. Para viabilizar projetos de aerofólios com eslates menos ruidosos, é importante compreender os fenômenos fluidodinâmicos responsáveis pela geração desse ruído. O trabalho descrito neste texto tem por objetivo verificar se existe correlação entre o comportamento de grandes estruturas turbulentas em diferentes configurações do aerofólio com as características do ruído aeroacústico gerado por elas. O escoamento em quatro configurações diferentes foi estudado, abrangendo dois ângulos de ataque e três posições do eslate em relação ao elemento principal. Os dados do escoamento para análise foram gerados através de simulações numéricas não estacionárias utilizando um código comercial baseado no Método Lattice-Boltzmann. O método da Decomposição Ortogonal Apropriada foi utilizado para a identificação das estruturas de grande escala baseada em critérios objetivos. Duas métricas distintas foram utilizadas, uma baseada na energia cinética turbulenta e outra baseada na correlação com as ondas acústicas geradas a partir do eslate. Os resultados das simulações transientes apresentaram boa concordância com resultados experimentais. O espectro de ruído de três casos simulados são dominados por picos de baixa frequência, enquanto o espectro do quarto caso é tipicamente de banda larga. A análise do escoamento indica uma tendência de aumento do ruído à medida que o recolamento se aproxima do bordo de fuga do eslate. As estruturas mais correlacionadas com o ruído são tipicamente bi-dimensionais e seu formato indica que são resultado do crescimento de perturbações na camada de mistura devido à instabilidade inflexional. A dinâmica das estruturas correlecionadas com o ruído na frequência dos picos é consistentes com a existência de uma retro-alimentação das perturbações da camada de mistura por ondas acústica na cova do eslate. Um modelo para previsão das frequências dos picos foi proposto a partir da observação das estruturas identificadas pela Decomposição Ortogonal Apropriada, mostrando boa concordância com as frequências observadas nos espectros calculados com base nos dados transientes das simulações.
Fischer, Horn af Rantzien Douglas, and Christian Weigelt. "A Process for Threat Modeling of Large-Scale Computer Systems : A Case Study." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-280097.
Повний текст джерелаI takt med att företag använder fler digitala tjänster med internetuppkoppling blir dessa tjänster mer och mer sårbara mot digitala attacker. För att motverka dessa cyberattacker och utrusta företag med verktyg mot dessa hot så har metoder för hotmodellering utvecklats. Denna studie undersöker effektiviteten hos en nyligen utvecklad hotmodelleringsmetod, som vi i studien kallar “TMM”. Detta gjordes genom att utvärdera processens resultat såväl som själva processen. Resultat från de olika delarna av processen redovisas och diskuteras i kontexten av att utföra implementationen och hur resultaten värderas av intressenter. Vi fann att TMM var en mindre komplex metodik än liknande hotmodellerings- och riskbedömningsmetoder och att den passar en iterativ implemenationsprocess som skulle ge en välutvecklad hotbild och riskbedömning genom upprepad implementation. Hotmodellerna och riskbedömningen som TMM lägger fram skulle då ge lämpliga och välgrundade rekommendationer för förbättring av systemsäkerhet.
Jovanovic, Mihajlo A. "Modeling Large-scale Peer-to-Peer Networks and a Case Study of Gnutella." University of Cincinnati / OhioLINK, 2001. http://rave.ohiolink.edu/etdc/view?acc_num=ucin989967592.
Повний текст джерелаVoroshilova, Alexandra. "Comparison study on graph sampling algorithms for interactive visualizations of large-scale networks." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-254656.
Повний текст джерелаNätverk återfinns inom datavetenskap, sociologi, biologi och neurovetenskap samt inom tillämpade områden så som transport, kommunikation och inom medicinindustrin. Den växande mängden datainsamling pressar skalbarheten och prestandakraven på grafalgoritmer, samtidigt som det uppstår ett behov av en djupare förståelse av dessa strukturer genom visualisering. Nätverksdiagram eller grafritningar kan underlätta förståelsen av data, identifiera de största grupperna, ett antal anslutna komponenter, visa en övergripande struktur och upptäcka avvikelser, något som inte kan uppnås med texteller matrisrepresentationer. Syftet med denna studie var att utvärdera tillvägagångssätt som kunde möjliggöra visualisering av ett omfattande P2P (peer-to-peer) livestreamingnätverk. Visualiseringen av större grafer har tekniska begränsningar, något som kan lösas genom att samla viktiga strukturella data från nätverken. I den här studien applicerades fyra provtagningsalgoritmer för grafreduktion på stora överlagringar av P2P-nätverksgrafer för att sedan jämföras. De fyra algoritmerna är baserade på val av länkar med högsta vikt, av nodar med högsta kumulativa vikt, betweenness-centralitetsvärden för att konstruera ett fokusbaserat träd som har de längsta vägarna uteslutna. Under utvärderingsprocessen upptäcktes det att algoritmen baserad på betweenness-centralitetstillnärmning visade de bästa resultaten. Dessutom, för varje algoritm i jämförelsen, visualiserades deras slutliga samplade grafer genom att använda en kraftstyrd layout med ett 2-stegs laddningsinfart.
QAJA, Besjana. "“Transport Corridors”. Large scale planning for regional and national development. Case study: Albania." Doctoral thesis, Università degli studi di Ferrara, 2021. http://hdl.handle.net/11392/2478842.
Повний текст джерелаRoman, Greice de Carli. "Characterizing the presence of agility in large-scale agile software development." Pontif?cia Universidade Cat?lica do Rio Grande do Sul, 2016. http://tede2.pucrs.br/tede2/handle/tede/7518.
Повний текст джерелаMade available in DSpace on 2017-06-30T18:19:05Z (GMT). No. of bitstreams: 1 DIS_GREICE_DE_CARLI_ROMAN_COMPLETO.pdf: 9835425 bytes, checksum: aa605361de91b916006af4710a54365b (MD5) Previous issue date: 2016-12-15
Em fevereiro de 2001, o Manifesto ?gil foi proposto tendo como princ?pio equipes pequenas e co-localizadas. No entanto, ao longo destes 16 anos, a agilidade tamb?m foi posta em pr?tica em outros contextos, como por exemplo: equipes distribu?das e sistemas complexos, utilizando-se o termo "Desenvolvimento ?gil em Larga Escala". N?o h? uma defini??o clara e compreensiva de como a agilidade est? presente neste contexto. Assim, nosso trabalho preenche essa lacuna com o objetivo de caracterizar a agilidade no Desenvolvimento ?gil em Larga Escala. Neste trabalho, realizou-se um estudo organizado em duas fases. Na Fase 1, denominada Base Te?rica, realizamos um estudo do estado-da-arte da ?rea. Na Fase 2, denominado Estudo Emp?rico, n?s realizamos duas investiga??es: um estudo de campo em uma empresa ?gil em larga escala, para identificar o desenvolvimento durante o processo de transforma??o da empresa para esta nova abordagem e, um grupo focal, para identificar como as equipes ?geis em larga escala que v?m utilizando os m?todos ?geis o quanto se percebem em termos de aspectos de maturidade ?gil. Estes resultados contribuem para os pesquisadores e profissionais entenderem melhor como a agilidade e definida e percebida nestes grandes ambientes. O conhecimento e ?til para aqueles que querem entender como o desenvolvimento ?gil se adapta a tais ambientes e para pesquisadores com o objetivo de se aprofundar sobre o tema.
The Agile Manifesto was proposed in February 2001 having in mind small and collocated teams. However, agile has also been put in practice in other settings (e.g. large teams, distributed teams, complex systems) under the term ?Large-Scale Agile Development' (LSAD). There is no clear definition for and understanding of how agility is present in this setting. Thus, our work fills in this gap aiming to characterize agility in LSAD. We conducted a study organized in two phases. In Phase 1, named Theoretical Base, we conducted the state-of-the-art of the area. In Phase 2, named Empirical Study, we conducted two investigations: a field study in a large-scale agile company to identify how agility was developed during the transformation process of the company to this new approach, and a focus group to identify how large-scale agile teams that have been using agile for a certain while perceive themselves in terms of maturity in agile aspects. Findings contribute to researchers and professionals better understand how agility is defined and perceived in large settings. This knowledge is useful for those who want to enter the agile journey in such similar environments and for researchers aiming to further explore the topic.
Goulding, John Stuart. "A study of large-scale focusing Schlieren systems." Thesis, 2008. http://hdl.handle.net/10539/4841.
Повний текст джерелаLiu, Jun-Gu, and 劉俊谷. "A Study of Steel Jacketing for Large Scale." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/43043147613206191566.
Повний текст джерела國立臺灣大學
土木工程學研究所
89
A Study of Steel Jacketing for Large Scale Rectangular RC Bridge Columns Abstract During the past years, experimental results on eleven 0.4-scale specimens have indicated that octagonal steel jacketing can effectively improve the seismic performance of rectangular RC bridge columns deficient in concrete lateral confinement or shear, or having vertical reinforcing bars improperly lap-spliced in the potential plastic hinge zone. In order to further substantiate the effectiveness of the octagonal steel jacketing for seismic retrofit of full-scale rectangular RC bridge columns, a combined analytical and experimental research program is launched. Two analytical methods were employed to compare the analytical lateral force versus displacement relationships with those obtained from the past tests of the 0.4 scale specimens. First method incorporates the strain versus stress relationships from both the tensile coupon responses of the vertical reinforcement and the Mander’s confined concrete model considering the equivalent lateral ties computed from the steel jackets and the transverse reinforcement. Second method considers a modified confined concrete model proposed by Lin and Li and a combined low-cycle fatigue and soften-branch model for vertical reinforcing bars. In both methods, moment versus curvature relationships were computed assuming plane remain plane after bending. Analytical results indicate that both methods can satisfactorily predict the overall lateral force versus displacement relationships of the column specimens. However, while the analysis accurately predict the experimental responses of column specimens lacking concrete lateral confinement in the plastic hinge zone, the analytical results are conservative for those column specimens lacking shear strength or proper lap-spliced vertical bar details. Based on the test and the analytical results, the design procedures for seismic retrofit of rectangular RC columns employing octagonal steel jackets are given. The octagonal steel jackets for the full scale bridge column specimen having 100% vertical bars lap-spliced for a length of 40 bar diameter above the footing were designed accordingly. The initial experimental results indicate that the retrofit measure was not effective due to the poor quality of the concrete. Subsequently, the lower part of the steel jackets and the concrete cover were removed before recasting concrete and reinstalling the steel jackets. Final tests results on the repaired specimen confirm that, if the concrete strength is appropriate even all the vertical bars are 40 bar diameter lap-spliced in the plastic hinge zone, the proposed octagonal steel jacket design can effectively improve the seismic performance of the full scale bridge column.
Cheng, Jen-hsuan, and 鄭任軒. "The feasibility study on outdoor large scale microalgaeculture." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/88452735369424630568.
Повний текст джерела國立中山大學
海洋環境及工程學系研究所
99
Nannochloropsis oculata is one of promising oleaginous microalga, containing a plenty of fat which can be extracted and transformed into biodiesel. The purpose of this study is to develop a closed system, Outdoor Temperature Controllable Photobioreactor System (OTCPS), to cultivate the algae in pure and massive quantity. In this research, the seawater from Sizihwan is used as the cultivation liquid. Lambert-Beer’s Law is adopted to calculate the attenuation coefficient of light intensity in a water column. By adjusting the water depth, not only the light intensity but also the water temperature could be controlled at the optimal situation and thus avoids unfavorable temperature changing in harsh weather. Therefore to establish the relationship of light intensity and water temperature is critical for the success of growing microalgae in outdoor conditions. The temperature variation of culture medium can be explained by the heat transfer theorem. In this study, the heat radiation mechanism and the first order of Fourier heat conductivity were adopted to simulate the liquid temperature change. The simulation results have shown good agreement with the filed data especially during daytime. The experimental results reveal that the winter grow rate of Nannochloroposis oculata is 0.33 d-1 , while the summer growth rate is only 0.20 d-1 . This may imply that the high temperature is an inhibition to the growth of Nannochloroposis oculata. Besides when the cell density of microalgae is getting higher, each individual alga may create mutual shading effect and thus reduce the photosynthetic efficiency. In conclusion, the proposed photobioreactor has been successfully tested in summer, autumn, and winter at Kaohsiung, in the south of Taiwan. This indicates that this device can be broadly used in the subtropic zone
Teng-ChiehHsu and 許登傑. "Study on Risk Analysis of Large Scale Landslide." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/7x5m53.
Повний текст джерелаTzu-YingYu and 余姿瑩. "Study on occurrence rainfall of large-scale landslide." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/m64wv2.
Повний текст джерела國立成功大學
水利及海洋工程學系
107
With the impact of global warming and climate change, extreme rainfall events may become the norm in the future, and major disasters will become more frequent. During the rainy season, extreme rains often induce more serious large-scale landslide. For example, Taiwan has been hit by typhoons all year round. In 2009, typhoon Morakot caused severe damage to the South of Taiwan. In the Xiaolin Village landslide, residents’ lives and property were seriously damaged. After this disaster, the issue of large-scale landslide prevention has become significant research. This study collects he large-scale landslide data in Taiwan from 2001 to 2016, and combines the time and place of the ground motion signal to determine the rainfall warning value using time, rainfall, and geo-factors, and explores the warning value. In this study, we use time series rainfall analysis method, and dimensionless rainfall analysis method to get the warning values of rainfall of large-scale landslide. The research results show that only the data who belong to the group of single and new large-scale landslides can get a better relationship. With the relationship between dimensionless parameter R/D and Φ/θ we get, it is easier to definite the safety value of rainfall for large-scale landslide monitoring and prevention when we can get some geostatistical parameters before it occurs.
Yeh, Po Hung. "Channel Meander Migration in Large-Scale Physical Model Study." 2009. http://hdl.handle.net/1969.1/ETD-TAMU-2009-08-7215.
Повний текст джерелаLin, Po-Yu, and 林柏宇. "The Study of Large-scale Network Security Auditing Mechanism." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/68390005800054997108.
Повний текст джерела樹德科技大學
資訊管理研究所
90
Internet services are becoming more popular and convenience as the information technology and network applications advance daily in the last few years. To ensure the quality and accessibility of Internet, the network security is an important concern. In order to maintain the reliability, continuity and its quality of Internet services, domain administrators must have access to the most updated information of every node within the network domain, so that they can take any precautionary steps or provide immediate solutions to decrease damages of network security incidents. The purpose of this thesis is to establish a Large-scale network security scanning system, which assists domain administrators in obtaining network nodes information efficiently, and analyzes the scanning data automatically. The research evaluate the targeted network nodes by using both Active Scanning and Passive Scanning methods; and collecting version information of Web Server, FTP Server, Mail Server, DNS Server, Operational System, and SSL. Furthermore, store those networks nodes information into the database for further analysis and comparison. Moreover, collecting the vulnerabilities of Internet service by using Common Vulnerabilities and Exposures (CVE) Information database, and then the vulnerabilities ratings of various Internet services can be obtained. The network security scanning system can be used to scan the targeted network domain periodically and consistently, and the scanning reports are available to domain administrators in HTML format. This research used Taiwan network domain for evaluation purpose, the study covers the most common used servers, obtained the version information and overall vulnerabilities rating of various server in this domain. At the same time, the recommendations for insuring network securities are provided.
hsun, Hsu-Shih, and 許世勳. "Study of Electrical Discharge Machining by a large scale." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/09870544496123157505.
Повний текст джерела國立中央大學
機械工程研究所碩士在職專班
100
Due to EDM have low working speed defect,working debris weren’t easily flushed and also debris deposit between electrode and work. In order to solve this problem, We propose three solutions .First ,We add aluminum powder in the working fluid can increase the gap distance between the electrode and workpiece and wastes bits can become small quality .Second , Add the magnetic field on both sides of the workpiece, increasing processing speed of debris flow. Third, while increasing the magnetic field and adding aluminum powder in the EDM, to enhance the material removal rate. From the experiment results, The use of better methods of processing parameters and no improvement of the workpiece surface will have a processing chip accumulation phenomenon. 30min after processing, electrode diameter, 30mm, 40mm, 55mm material removal rates were 0.70g/min, 0.69g/min, 0.20g/min;The first Techniques experiment results, Add aluminum material removal rates were 0.82g/min, 0.77g/min, 0.72g/min, and the workpiece surface did not chip accumulation phenomenon; Magnetic field-assisted material removal rates were 0.96g/min, 0.83g/min, 0.70g/min, and the workpiece surface did not chip accumulation phenomenon; Add aluminum powder processed with the magnetic field-assisted material removal rates were 1g/min, 0.93g/min, 0.76g/min, and the workpiece surface did not chip accumulation phenomenon. Three kinds of improvements can make the process smooth chip flow and enhance the material removal rate. Add aluminum powder and add magnet while the best results after processing
Liou, Jer-Ming, and 劉哲明. "The study of large-scale production of gamma-linolenic acid." Thesis, 1995. http://ndltd.ncl.edu.tw/handle/32846432595453504367.
Повний текст джерелаHsun, Chan Po, and 詹博勳. "Study on the Development Stratey of Large Scale Shopping Center." Thesis, 1993. http://ndltd.ncl.edu.tw/handle/59251415125561834554.
Повний текст джерела淡江大學
建築(工程)學系
81
Due to the rise of income level and the change of living, somsuming style in Taiwan area, the multifunctional shopping mall of European-American type shopping center has been pro- posed at present. In the same time, because the lack of civic leisure facilities, central government has listed the const- ruction of large scale shopping center as the important econo- mic plan of National Six-year Construction Plan.The main purpose of this study is to propose the development strat- egies of large scale shopping center from the foriegn development experience and the analysis of the development cir- cumstance in Taiwan at this stage. The structure of this study is as the follows. First, to establish the integrate development concept of shopping center from the discussion of the development ideas of shopping center including development history, delvelopment charateristics, planning and development strategies. Second, to discuss the function, development process,site selection, market potential, plan and design, operation and management of two proposed de- velopment cases in Taiwan and Two foreign developed cases in shopping center. From the above study, the development of shopping center, we should propose integral clear large scale shopping center development plan, establish the entire development system of shopping center and propose site location plan to guide the development of large scale shopping center in Taiwan efficien- tly. In planning, operation and management, we shold absorb the successful experience of foriegn cases, and sevise from our development circumstance to develop large scale shopping center of Taiwan style.
Wang, Min Hsuan, and 王敏璇. "A Study on the Ranking Methods for Large Scale Competitions." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/84070323469512824801.
Повний текст джерелаChieh-HsuanWeng and 翁傑軒. "Study on Correlation of Water Quality and Large Scale Landslide." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/g4mwjs.
Повний текст джерелаYen, Chin-Yi, and 顏勤益. "The Study of Large-scale Events Fireworks Execution Management Cast." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/7tp29q.
Повний текст джерела國立交通大學
工學院產業安全與防災學程
105
Professional fireworks are usually displayed when a celebration or a folk activity is taking place. Firework display is not managed correctly, it may cause a serious danger to the public. The study not only looks into the topic of holding national fireworks and art festival in Miaoli County but also discusses firework behavior through related researches. Besides, the research analyzes causes of accident by doing case studies on each fireworks accident and finds difficulties of executing a professional firework checking、displaying or destroying. The goal aims at the risk assessment of fireworks management and tries to define a method to verify effectiveness of correct action. How to improved safety of fireworks display? The investigation shows that as follows. Firstly, a communication system between sponsor and related departments should be established. Secondly, professional fireworks checking and the checklist of fireworks safety management should be carried out certainly. Last but not least, related laws and regulations of firework should be promoted and then the safety of fireworks display can be built up
Kao, Chia-yang, and 高嘉陽. "A Study on Test-sheet Composition from Large-scale Test Banks." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/rd7rat.
Повний текст джерела銘傳大學
資訊工程學系碩士班
96
With the prosperity of information technology development, much more attentions have been paid to the test sheet composition based on a computerized test item bank. In the past, the most popular way to pick up test items from an item bank is determined randomly. Although the random selection is quite easy to conduct, it is hard to meet the various requirements of developing a better test sheet. Currently, some literature works have been contributed to solve the problem by using heuristic algorithm, such as the tabu search algorithm. Given multiple assessment criteria of a test, a test sheet with an approximate optimal solution can be generated from a large item bank. This paper proposes a greedy algorithm to solve the test-sheet composition problem. According to the experimental results, the proposed greedy algorithm achieves a better solution as compared to the known tabu search algorithm in a shorter time in most situations and explores some issues. Besides, we also adopt the item response theory to formulate the test-sheet composition. With the consideration of students’ ability, a test-sheet satisfying all the criteria can be generated by Ant Colony Optimization algorithm. According to the experimental results, the ACO algorithm reaches a better solution than other algorithms in acceptable time
Su, Zhi-hao, and 蘇智豪. "Study on Low PAPR Precoding for Large-Scale Multiple Antenna System." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/9w968m.
Повний текст джерела國立中山大學
通訊工程研究所
102
Massive MIMO antenna system employs a few hundred base station antennas to simultaneously serve many tens of user equipments in the same radio channel. Such system can dramatically improve the data rates and energy-efficient, and thus is widely considered as a future cellular network architecture. Because the amount of RF power amplifier is large, reducing the hardware cost becomes a critical issue in implementation. Low‐cost RF amplifiers have poor linearization property so that they cannot be used to signals with high peak‐to‐average‐power‐ratio (PAPR). To overcome this problem, several works have considered developing low PAPR precoding techniques. Previous works have proposed the gradient descent (GD) method to find the low PAPR precoding. However, the GD method has high computational complexity. Our contributions include the introducing of the approximated message passing (AMP) algorithm in searching the low PAPR precoding. Compared to the GD method, the AMP algorithm is more suitable for the hardware implementation because it enjoys the much lower computational complexity.
Lin, Tsung-Yi, and 林宗毅. "Voltage Stability Study for Power System with Large Scale Wind Farm." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/664n3q.
Повний текст джерела國立臺灣海洋大學
電機工程學系
102
The main purpose of this thesis is to investigate the voltage stability of power system with a large-scale wind farm. Calculations of power flow and bus voltage variation of the system without and with the wind farm are conducted, and according to the related interconnection criteria, the fault current and cables loading are investigated to determine whether the system exceeds relevant specifications. Both the real-power-voltage curves (P-V curves) and the reactive-power-voltage curves (Q-V curves) methods are used for analyzing the voltage stability limit of the system under normal operation as well as contingency cases. In this thesis, the Changpin area power system in Taiwan with existent onshore and future offshore wind farms is taken as the study system to explore the impacts of wind farms on system voltage stability. The doubly-fed induction generator and the full converter wind turbine of the wind farms, which are set to be operated under the constant power factor control mode and constant voltage control mode, are utilized as the generating units for the wind farm and the impacts from the two types of generating units on the system are investigated based on the calculations of power flow, bus voltage variation and steady-state voltage stability. The results from the P-V and Q-V curves show that power system voltage stability will be influenced by the wind farm with different type of units under various control modes.
Chu, I.-Jhom, and 朱奕璋. "Study on the mechanism of slope failure using large-scale tests." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/42357810786512575444.
Повний текст джерела國立暨南國際大學
地震與防災工程研究所
94
Among all types of natural disasters, debris flow is one of the most threatening events for human and the environment. Up-stream slope failures induced by heavy rainfall usually constitute the source of debris flow. As a first step towards the mitigation of debris flow disaster, the mechanism of slope failure is investigated herein. An experimental program for investigating the mechanism of slope failure is conducted using the outdoor large-scale debris flow test channel and the artificial raining system at the campus of National Chi Nan University. A sand classified as SP-SM was used to establish two slopes; one of them is a 4.6 m- long, 1.5 m-wide and 0.75 m-deep approximately trapezoidal dam with a slope angle of 30°; the second one is a 2.9 m-long, 1.5 m-wide and 0.6 m-deep infinite slope with a slope angle of 30°. Artificial raining tests were performed on these two slopes. Bi-axial loadcells and pore-pressure transducers are used in the tests. Cameras are used to observe the deformation of the slop surface and the settlement of the test slopes. Results of the tests show that the toe of the slope tends to be saturated earlier than other parts of the slope and its pore-pressure increasing rate is also higher than that observed at other portions of the slope. The soil strength decreases because of the rising pore pressure at the toe of the slope induced by the seepage in the soil mass, and this may be the main reason that causes slope failures. Results of the normal stress measurement show that the normal stress near slope toe increases rapidly immediately before the ultimate failure of the slope, indicating the stress concentration at the toe of the slope may be the sign of the beginning of slope failure.
Chen, Hong-Yao, and 陳泓堯. "Study on Operation Strategy for Large Scale Customers Considering Transformer Losses." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/72579688721128633681.
Повний текст джерела國立臺灣科技大學
電機工程系
96
The starting point of this research lies in setting up capacity rationalized studying the distribution systems of large-scale users, to the self-criticism of user's end voltage transformer load rate , probe into losses of the transformer further, expect to be able to get and do rational load of the transformer in the distribution structure to amalgamate the foundation from the lost relation between the load rate and transformer , can cut the system of leaving , use to raise the load rate of the distribution system while examining out that group of transformers in structure, reduce losses at the same time .By this operation tactics proposed of thesis, can really reduce losses of the transformer under the low situation of load rate, and is suitable for planning the capacity of the transformer to consult in the future.