Дисертації з теми "Capacity limit"
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Troller, Joakim Brendjord. "Compression Capacity of Timber Sills Loaded Perpendicular to the Grain : Ultimate Limit State (ULS) and Serviceability Limit State (SLS)." Thesis, Norges Teknisk-Naturvitenskapelige Universitet, Institutt for bygg, anlegg og transport, 2014. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-27225.
Повний текст джерелаDunne, Helen P. "Finite element limit analysis of offshore foundations on clay." Thesis, University of Oxford, 2017. http://ora.ox.ac.uk/objects/uuid:ba9c9beb-e055-4f46-a9f9-b2d10bd292b7.
Повний текст джерелаKucuk, Sinan. "A Comparative Investigation Of Heat Transfer Capacity Limits Of Heat Pipes." Master's thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/12609125/index.pdf.
Повний текст джерелаPerninge, Magnus. "A Stochastic Control Approach to Include Transfer Limits in Power System Operation." Doctoral thesis, KTH, Elektriska energisystem, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-41986.
Повний текст джерелаQC 20111010
Lima, Severino Cesário de. "Desempenho fiscal da dívida dos grandes municípios brasileiros." Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/12/12136/tde-01022012-174857/.
Повний текст джерелаWith the promulgation of the Fiscal Responsibility Law (FRL) some rules for fiscal discipline were set in order to reduce the public deficit and stabilize the public debt relative to Gross National Product (GDP). These rules compound the hard budget constraint, highlighting the balanced-budget requirement, the legal limit of indebtedness, the allocation of debt for investments and indirect control of debt through the limit of personnel expenses. However, among these rules, managers of large municipalities in Brazil claim that the legal limit of indebtedness of 1.2 over the Net Current Revenue (NCR) set by the Senate is inadequate because it is unique for all local governments without giving special treatment to major municipalities that have sound differences in terms of population, income and revenue. In this context, it is extremely important to assess the fiscal performance of the debt of major Brazilian cities, focusing on the level of debt according to the potential resources of local governments and budget constraints imposed by the FRL. So, this thesis has as principal purpose to measure and explain the performance of the debt level of the major Brazilian municipalities in terms of potential resources and mechanisms of budget constraints. To do that, we considered in the study all the larger municipalities over 500,000 inhabitants. In order to measure the performance of the debt level we used Data Envelopment Analysis (DEA) in a panel of data, called Dynamic DEA DSBM (Slacks Based Dynamic Model) with data from 2000 to 2008, considering the debt level as input, the primary result as carryover variable and as output variables that represent the potential resources of the City: GDP, property values and population size. The performance of the debt level achieved using DEA DSBM was explained by the rules of fiscal discipline using GEE regression (Generalized Estimating Equations). The results did not reject the hypothesis that the limit of personnel expenses and the allocation of debt for investments are responsible for ensuring the performance of the debt level of the major Brazilian municipalities. The results rejected the hypothesis of the current balanced budget to positively influence the performance of debt, however, considering that to obey this rule it\'s necessary to observe the further rules tested, we confirmed the thesis that the mechanisms of budget constraints cause positive effects on the debt level of large Brazilian municipalities. These findings intensified the efficacy of the FRL in the control of public debt. On the other hand, the data revealed that voluntary transfers, which represent implicit financial aid, act as a counterforce to the performance level of debt, weakening the budget constraints, as predicted by the hypothesis of soft budget constraint. Considering the importance of the fiscal rule of debt limit in the context of hard budget constraints mechanism, this study investigated whether the limit set by the Senate reflects the potential resources of the major Brazilian cities. The results showed, contrary to the expectations, that the legal limit is quite high for large municipalities, except for São Paulo and Rio de Janeiro, because the debt capacity of these municipalities, according to its potential resources, leads to an average limit of 0.35 of the NCR. However, for the municipalities of São Paulo and Rio de Janeiro the legal limit should be much larger than that established by the Senate, respectively, 1.84 and 1.64 of the NCR, because of the considerable size of population, the significant flow of wealth expressed by the GDP and the considerable wealth of the community represented by the property values. We believed this study has contributed to a reflection of the public debt and introducing a methodology to assist in the progress of studies in this area.
Andersson, Andreas. "Capacity assessment of arch bridges with backfill : Case of the old Årsta railway bridge." Doctoral thesis, KTH, Bro- och stålbyggnad, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-32827.
Повний текст джерелаArbetet i föreliggande avhandling omfattar analyser av befintliga bågbroar med ovanliggande fyllning. Huvudsyftet är att uppskatta bärförmågan i brottgränstillstånd. En fallstudie av gamla Årstabron redovisas, vilken utgör både initieringen och en direkt tillämpning av föreliggande forskning. Kravet från broförvaltaren är att öka brons livslängd med 50 år, samtidigt som axellasten ska ökas från nuvarande 22.5 ton till 25 ton. Utförda analyser visar på stor spridning i uppskattad bärförmåga, beroende på ett stort antal parametrar. En av de främsta faktorerna är fyllningens egenskaper, vilken kan resultera i en markant ökning av bärförmågan p.g.a. samverkan med bågen. Baserat på teoretiska analyser, tillståndsbedömningar och krav från broförvaltaren beslutades att bron skulle förstärkas. En förstärkningsmetod har utvecklats i nära samarbete med broförvaltaren och personer som tidigare utfört tillståndsbedömningarna. Analyserna visar ett utpräglat tredimensionellt beteende, vilket har föranlett användandet av icke-linjära finita elementmetoder. Krav på full trafik under samtliga förstärkningsarbeten har resulterat i att dessa utförs enligt en föreskriven ordning, som ska reducera minskning i bärförmåga under samtliga etapper. Förstärkningsförslaget godkändes av Banverket och är för närvarande under byggnation. Enligt plan ska dessa slutföras under 2012. Fältmätningar har använts för att bestämma det statiska verkningssättet under brukslaster, vilket visas ge goda resultat. Resulterande töjningar från passerande tåg har uppmäts i bågen, både före, under och efter förstärkning. Resultaten har använts både för att kalibrera beräkningsmodeller och att verifiera utförda förstärkningar. Samverkan mellan båge och fyllning har inte kunnat verifierats för den aktuella bron och de utvecklade förstärkningarna baseras på en modell där både fyllning och sidomurar endast utgör yttre verkande last. De framtagna finita element modellerna har jämförts med experimentella resultat från litteraturen, omfattande tegelvalvsbroar med ovanliggande fyllning belastade till brott. Generellt erhålls god överensstämmelse om full samverkan mellan båge och fyllning antas. Om fyllningen istället endast betraktas som yttre last, minskar lastkapaciteten ofta med en faktor 2 till 3. Fortfarande uppvisar ett antal faktorer stor inverkan på bärförmågan, vilka ofta är svåra att med säkerhet bestämma. Ett konservativt betraktningssätt rekommenderas, även om delvis samverkan med fyllningen fortfarande kan öka bärförmågan avsevärt.
QC 20110426
Chen, Zhijian. "Capacity limits and length limits in immediate recall : a reconciliation /." free to MU campus, to others for purchase, 2004. http://wwwlib.umi.com/cr/mo/fullcit?p1422917.
Повний текст джерелаStrömgren, Per. "Modelling of Traffic Performance for Swedish Roads and Motorways." Doctoral thesis, KTH, Transportplanering, ekonomi och teknik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-185930.
Повний текст джерелаQC 20160429
Lipowczan, Martin. "Inverzní analýza spolehlivosti předpjatého mostu." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2018. http://www.nusl.cz/ntk/nusl-372071.
Повний текст джерелаVelecká, Renata. "Statické řešení založení novostavby horského hotelu." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2014. http://www.nusl.cz/ntk/nusl-226922.
Повний текст джерелаDorji, Jigme. "Strength and serviceability assessment of aged masonry arch bridges." Thesis, Queensland University of Technology, 2021. https://eprints.qut.edu.au/213050/1/Jigme_Dorji_Thesis.pdf.
Повний текст джерелаChatzinotas, Symeon. "Information-theoretic capacity limits in multi-cell joint processing systems." Thesis, University of Surrey, 2009. http://epubs.surrey.ac.uk/842899/.
Повний текст джерелаAin-Ul-Aisha, FNU. "Fundamental Limits of Poisson Channels in Visible Light Communications." Digital WPI, 2017. https://digitalcommons.wpi.edu/etd-dissertations/475.
Повний текст джерелаTeklemariam, Daniel Mekonnen, and Bennie Hamunzala. "Design of Thick Concrete Beams : Using Non-Linear FEM." Thesis, KTH, Bro- och stålbyggnad, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-189141.
Повний текст джерелаDe experimentella studier som utförts på tjocka betongbalkar som utsätts för statisk last har visat att skjuvning spelar en viktig roll i brottmekanismen. Syftet med detta examensarbete är att rekommendera lämpliga dimensioneringsmetoder för tjock betongbalkar utsatt for statisk koncentrerad last enligt Eurokod 2 med hjälp av ickelinjära finita element metod. Abaqus/Explicit användes genom att utnyttja konstitutiva materialmodeller för att fånga materialens icke-linjäritet och minskad styvhet. Tre dilatationsvinklar (30°, 38° och 45°) och två brottenergi från FIB 1990 (76 N/m) och FIB 2010 (142 N/m) tillämpas för att kontrollera deras inverkan på FE-modellerna. Dilatationsvinkel med 38° och FIB 2010 med högre brottenergi valdes i de icke-linjära finita elementanalyserna. Kontroll av FE-modellerna är baserad på ”American Concret Institutes” experimentella resultat på de tjocka betongbalkarna. Handberäkningar av tjocka betongbalkar har utförts i brott- och bruksgränstillstånd med tre dimensioneringsmetoder i Eurokod 2 nämligen balk metoden, fackverksmetoden och linjära-FE skalelementmetoden. Jämförelse har gjorts för de olika dimensioneringsmetoderna, genom att använda de armeringsdetaljer av handberäkningar i de verifierade och kalibrerade icke linjära FE-modellerna i Abaqus/Explicit. Resultaten i fråga är last för 0.3 mm handberäknad sprikvidd, FE-last för 0.3 mm sprikvidd, armeringsmängd och FE-brottlast. Jämförelse av resultaten mellan de tre dimensioneringsmetoder (balkmetod, fackverksmetod och skalelementmetod) visar att fackverksmetod är bättre design metod, eftersom det är relativt ekonomiskt med avseende på armeringsmängd, har högre lastkapacitet och last på 0.3 mm sprickvidd.
Ranjbar, Mohammad. "Optimal Signaling Strategies and Fundamental Limits of Next-Generation Energy-Efficient Wireless Networks." University of Akron / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=akron1564677171677636.
Повний текст джерелаCamilleri, Marguerite. "Environmental capacity for Malta : living within limits in a small island state." Thesis, University of Cambridge, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.621340.
Повний текст джерелаMazzotti, Sofia. "Equilibri nel modello di Cournot quando esistono limiti di capacità produttiva." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2017. http://amslaurea.unibo.it/13564/.
Повний текст джерелаBugetti, Maria Novella <1980>. "L'amministrazione di sostegno tra tutela della persona e limiti di capacità." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2007. http://amsdottorato.unibo.it/97/.
Повний текст джерелаPollock, Tony Steven, and tony pollock@nicta com au. "On Limits of Multi-Antenna Wireless Communications in Spatially Selective Channels." The Australian National University. Research School of Information Sciences and Engineering, 2003. http://thesis.anu.edu.au./public/adt-ANU20050418.143712.
Повний текст джерелаBeirami, Ahmad. "Network compression via network memory: fundamental performance limits." Diss., Georgia Institute of Technology, 2014. http://hdl.handle.net/1853/53448.
Повний текст джерелаSoriguera, Francesc, Irene Martínez, Marcel Sala, and Mónica Menénde. "Effects of low speed limits on freeway traffic flow." Elsevier, 2017. https://publish.fid-move.qucosa.de/id/qucosa%3A72818.
Повний текст джерелаBasak, Chandramallika. "Capacity limits of the focus of attention and dynamics of the focus switch cost in the working memory." Related electronic resource: Current Research at SU : database of SU dissertations, recent titles available full text, 2005. http://wwwlib.umi.com/cr/syr/main.
Повний текст джерелаLe, Anh Duc. "Fundamental Limits of Communication Channels under Non-Gaussian Interference." University of Akron / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=akron1469011496.
Повний текст джерелаKacem, Ahmed. "Etude de la capacité limite de déformation dans le procédé de relevage de bord par expansion." Phd thesis, Université de Bretagne Sud, 2013. http://tel.archives-ouvertes.fr/tel-00840726.
Повний текст джерелаErguner, Kamil. "Analytical Examination Of Performance Limits For Shear Critical Reinforced Concrete Columns." Master's thesis, METU, 2009. http://etd.lib.metu.edu.tr/upload/3/12611220/index.pdf.
Повний текст джерелаNancey, Alain. "Capacité portante des fondations superficielles sous sollicitations sismiques." Phd thesis, Grenoble 1, 1992. http://tel.archives-ouvertes.fr/tel-00783443.
Повний текст джерелаSvoboda, Petr. "Nosná železobetonová konstrukce bytového domu." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2014. http://www.nusl.cz/ntk/nusl-226746.
Повний текст джерелаFerencz, Balázs. "Nosná železobetonová konstrukce objektu administrativní budovy." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2014. http://www.nusl.cz/ntk/nusl-226920.
Повний текст джерелаKacem, Ahmed. "Étude de la capacité limite de déformation dans les procédés de mise en forme par déformation locale." Lorient, 2013. http://www.theses.fr/2013LORIS288.
Повний текст джерелаThis thesis deals with the experimental and numerical investigations of the limits of the flanging process arising from material failure. The methodology developed in this study was applied particularly to the stretch flanging process of a hole in sheet metal called the hole-flanging process. The materials studied are made of A1050-H14 and A6061-O aluminium alloys. Mechanical characterizations have been performed through uniaxial tensile and shear tests. An elasticplastic finite element models based on isotropic and anisotropic yield criteria were developed. These models were enhanced by the integration of the damage in simulation. Experiments were conducted to verify the reliability of the developed finite element models. First, the effect of the clearance thickness ratio on the hole-flanging process was studied. A methodology was made to distinguish two conditions of the process: hole-flanging with and without ironing. Then, the effect of material anisotropy assumptions on the predictive accuracy of finite element simulations of the hole-flanging process was quantified. The study was then focused on the determination of the limits of hole-flanging process arising from material failure. For that purpose, a fracture criterion was calibrated and used in simulations to predict the damage of the flange. Finally, the damage occurrence in flanged edge was characterized by using the coupled approach of Gurson-Tvergaard-Needleman
Hamlaoui, Madani. "Capacité portante des fondations superficielles pour géomateriaux avec modèles plastiques non associés." Thesis, Lille 1, 2015. http://www.theses.fr/2015LIL10146.
Повний текст джерелаIn associated plasticity, i.e. with the normality law, Prandtl-Hill analytical solution gives the exact limit load of a punch on a semi-infinite massive of foundation with Mohr-Coulomb model. However, it is experimentally recognized that geomaterial shave a non-associated behavior, what means that in reality the value of the limit load is only an estimation.In this work, it is proposed to fill this lack in addressing the problem of the bearing capacity of a shallow foundation, when the low of plasticity is no-associated. On the basis of numerical simulations and an extension of the limit analysis method to materials with non-associated laws by the bipotential approach, de Saxcé (1992), we proposed an approximated analytical solution by a variational method and we compared to Drescher-Detournay formula (1993) and numerical results
Kliegl, Reinhold. "Kognitive Plastizität und altersbedingte Grenzen am Beispiel des Erwerbs einer Gedächtnistechnik." Universität Potsdam, 1989. http://opus.kobv.de/ubp/volltexte/2009/4032/.
Повний текст джерелаThe relevance of developmental reserve capacity (plasticity) and associated age-related limits for theories of cognitive aging is discussed. For basic cognitive mechanisms, older adults' developmental reserve capacity is expected to be sufficient to surpass young adults' baseline performance. Aging-related limits of this reserve, however, will allow only very few older adults to achieve levels of performance characteristic of trained young adults. Two research strategies (designed to engineer a mnemonic skill for serial recall of words) are described: (a) training of positively selected, mentally very fit older adults and (b) longitudinal single case studies. Experimental results were in agreement with the theoretical expectations. The best older adults scored about twice as high as untrained young adults but even with up to 75 additional experimental sessions the age difference generated by the cognitive intervention was not overcome.
Vielmo, Alexandro Luiz. "LIMITE SUPERIOR DA RETENÇÃO DA ÁGUA NO SOLO: MÉTODO DE CAMPO E MÉTODO DE ESTIMATIVA." Universidade Federal de Santa Maria, 2008. http://repositorio.ufsm.br/handle/1/7494.
Повний текст джерелаO limite superior da retenção de água no solo, também conhecido como capacidade de campo, ainda é motivo de discussão e pesquisa entre a comunidade acadêmica, pois a variabilidade dos solos determina a variação nos resultados obtidos em todos os métodos utilizados. A necessidade de acurácia, rapidez dos resultados e custo do teste é que determinam qual método deve ser utilizado. A recomendação para a determinação da capacidade de campo é de que seja realizada "in situ"; entretanto, devido ao processo ser moroso, essa tem sido realizada em laboratório. O presente trabalho foi desenvolvido utilizando dados disponíveis na literatura, reunidos de modo a formarem um banco de dados sobre o assunto em estudo. Foi feito uma análise comparativa entre os valores de umidade volumétrica, obtidos através dos experimentos no campo e os valores da umidade volumétrica estimados com a metodologia proposta e utilizando os diferentes modelos de ajuste da curva de retenção da água no solo. Para realizar a comparação foi feita analise de regressão entre os valores da capacidade de campo pelos diferentes procedimentos com o objetivo de obter o coeficiente de correlação (r) e o índice de concordância de Wilmont (c), A partir dos resultados encontrados neste trabalho concluiu-se que a avaliação da metodologia proposta, para a estimativa da capacidade de campo em função do ponto de inflexão da curva de retenção, quando modelada por um polinômio de 3° grau, apresentou classe de desempenho ótimo e muito bom (66.5%), muito fraco (16,6%) e péssimo (16,6%). A metodologia aplicada não apresentou resultados consistentes para as diferentes fontes de dados utilizadas, sendo que de maneira geral, os melhores desempenhos encontrados foram para as curvas de retenção determinadas a campo, com exceção de solos de dunas de areia.
Muler, González Vanessa. "Furthering social exchange theory in the study of resident impact perceptions: three approximations to the limits to tourism growth." Doctoral thesis, Universitat de Girona, 2020. http://hdl.handle.net/10803/672160.
Повний текст джерелаLa tesis vincula els límits del creixement turístic i la teoria d’intercanvi social (TIS) mitjançant les percepcions d’impactes turístics dels residents de l’àrea d’estudi. La TIS ha estat la teoria més utilitzada per explicar les percepcions dels residents ja que la participació d’aquests en el turisme es pot entendre com un intercanvi en el qual els residents reben uns beneficis a canvi de suportar uns costos. En la seva totalitat, aquesta tesi explica els límits del creixement turístic mitjançant el llenguatge d’aquesta teoria i té per objectiu confirmar certs aspectes de la combinació d’ambdues teories (límits del creixement turístic i TIS). En primer lloc, confirma que els indicadors dels límits del creixement turístic no necessàriament coincideixen amb els de la TIS, ja que les percepcions positives del residents no es corresponen amb una voluntat d’acceptar més turistes. En segon lloc, s’identifiquen quatre relacions d’intercanvi social en les quals es vinculen costos i beneficis des de la perspectiva del residents. Aquestes relacions tenen vinculacions específiques amb els límits del creixement turístic, el que suggereix que els intercanvis que afecten recursos limitats poden afectar la capacitat de càrrega social. Finalment, es caracteritza el rol que tenen els valors en el sistema d’ intercanvi tal i com el perceben els residents. Es constata que els residents no només fan referència a valors propis del creixement turístic sinó també valors contraris, de decreixement, i que aquests últims incideixen en la manera en que perceben als turistes i els límits del creixement turístic
Programa de Doctorat Interuniversitari en Turisme
Agdestein, Sofie Døving. "Operating Room Scheduling Problem : Considering the uncertain arrivals of the emergency patients and the capacity limits of the pre-op and post-op facilities." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for industriell økonomi og teknologiledelse, 2012. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-20960.
Повний текст джерелаNissan, Albania. "Evaluation of Variable Speed Limits : Empirical Evidence and Simulation Analysis of Stockholm’s Motorway Control System." Doctoral thesis, KTH, Trafik och Logistik, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-13200.
Повний текст джерелаQC20100630
Cavalcante, Valberg Barbosa. "Evaluation of the limits and restrictions of the state fund to combat poverty in the state of Cearà - FECOP a particular case." Universidade Federal do CearÃ, 2013. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=10605.
Повний текст джерелаRESUMO Este à um tema relacionado ao Fundo de Combate à Pobreza do Estado do Cearà â FECOP, instituÃdo pela Lei Complementar n 37, de 26 de novembro de 2003, regulamentado pelo Decreto Estadual n 27.379, que busca dar suporte para as aÃÃes de polÃticas pÃblicas na superaÃÃo da pobreza no Estado do CearÃ, em duas vertentes na mudanÃa estrutural e nos processos de polÃticas compensatÃrias, que envolvem todas as aÃÃes das secretarias estaduais do Cearà no combate à pobreza, e o projeto proposto busca situar como problemÃtica se està polÃtica pÃblica esta realmente reduzindo a pobreza no Estado cearense, e qual a sua natureza de atuaÃÃo, no perÃodo de 2004 a 2010, no contexto do quadro neoliberal e da mundializaÃÃo do capitalismo financeiro, como elementos constitutivos da reproduÃÃo ampliada da pobreza, de forma generalizada em todos os paÃses em desenvolvimento, dentro de uma inclusÃo injusta da globalizaÃÃo capitalista. O objetivo principal deste estudo à avaliar, bem como examinar e reflexivamente a implementaÃÃo, as concepÃÃes, os princÃpios e os resultados alcanÃados do FECOP, com relaÃÃo ao comportamento dos Ãndices referentes à pobreza extrema e da pobreza, no perÃodo hà pouco mencionado, de maneira diferenciada e mais abrangente do que a variÃvel explicativa dominante utilizada e focada apenas na insuficiÃncia de renda.
ABSTRACT The design of the proposed study to be described is a theme related to the Fund to Combat Poverty in the State of Cearà â FECOP, which was established by complementary Law No. 37, dated November 26, 2003 and regulated by State Decree 27379, which seeks to support the actions of public policies in overcoming poverty in the State of CearÃ, in two-pronged in the structural change and the processes of compensatory policies, that involve all actions of state departments of Cearà in fighting poverty, and the proposed project seeks to put as problematic if this public policy is really reducing poverty in the State of CearÃ, and what is its nature of operations in the period from 2004 to 2010, set against the backdrop Neo-Liberal and globalization of financial capitalism, as constituent elements of the expanded reproduction of poverty so widespread throughout developing countries, within an unfair inclusion of capitalist globalization. The main objective of this study is to evaluate, analyze critically and reflectively the implementation, concepts, principles and achievements of FECOP, regarding the behavior of the indices related to extreme poverty and poverty in the aforementioned period, in a differently and more comprehensive than the dominant explanatory variable used and focused only on insufficient income.
Parrish, Bradley K. "Affordable Housing in the Florida Keys: Providing Affordable Units Within the Limits of Local Growth Management Regulations." Cincinnati, Ohio : University of Cincinnati, 2007. http://www.ohiolink.edu/etd/view.cgi?acc%5Fnum=ucin1188344427.
Повний текст джерелаAdvisor: Xinhao Wang. Title from electronic thesis title page (viewed Feb. 6, 2008). Includes abstract. Keywords: affordable; housing; affordable housing; Florida Keys; Growth Management; ROGO; Residential Rate of Growth Ordinance; Rate of Growth Ordinance; hurricane evacuation; FKCCS; florida keys carrying capacity study; community planning thesis; planning thesis. Includes bibliographical references.
Housset, Johann. "Variations de croissance et capacité d’adaptation des populations marginales fragmentées d’arbres des zones boréo-montagnardes, en réponse aux changements climatiques." Thesis, Paris, EPHE, 2015. http://www.theses.fr/2015EPHE3041/document.
Повний текст джерелаThis thesis aims to assess the fate of marginal populations, in the context of climate change, for boreo-mountain tree species. The dendroclimatic response and the genetic structure of the species are jointly analyzed on gradients including both the continuous and the marginal distribution zones. Two biological models have been chosen for this research, white cedar at its northern limit (boreal forest) and stone pine at its western limit (temperate mountain forest). The following hypotheses were tested: global warming during the twentieth century has led to increased growth; growth variability is related to the genetic structure at the intra- and inter-population levels. A decline in cedar growth was observed after 1980 in marginal zone, which could be linked to drought constraints on growth. For both species, climate-growth relationships were essentially modulated by the amount of precipitation, but also by soil and tree-size variables. The existence of a significant link between genetic structure and some climatic variables still leaves some hope for a genetic adaptation potential, which magnitude will depend on the genetic diversity available for natural selection. The growth synchronicity between the trees was both influenced by the intra-population genetic diversity and the amount of precipitation. In conclusion, it is very difficult to disentangle the effects of climate and genetics on the growth of the studied trees
Vincent, Hugues. "Développement d'un modèle de calcul de la capacité ultime d'éléments de structure (3D) en béton armé, basé sur la théorie du calcul à la rupture." Thesis, Paris Est, 2018. http://www.theses.fr/2018PESC1038/document.
Повний текст джерелаTo evaluate the load bearing capacity of structures, civil engineers often make use of empirical methods, which are often manuals, instead of nonlinear finite element methods available in existing civil engineering softwares, which are long to process and difficult to handle. Yield design (or limit analysis) approach, formalized by J. Salençon, is a rigorous method to evaluate the capacity of structures and can be used to answer the question of structural failure. It was, yet, not possible to take advantage of these theoretical methods due to the lack of efficient numerical methods. Recent progress in this field and notably in interior point algorithms allows one to rethink this opportunity. Therefore, the main objective of this thesis is to develop a numerical model, based on the yield design approach, to evaluate the ultimate capacity of massive (3D) reinforced concrete structural elements. Both static and kinematic approaches are implemented and expressed as an optimization problem that can be solved by a mathematical optimization solver in the framework of Semi-Definite Programming (SDP).A large part of this work is on modelling the resistance of the different components of the reinforced concrete composite material. The modelling assumptions taken to model the resistance of concrete are discussed. And the method used to model reinforcement is also questioned. The homogenization method is used to model periodic reinforcement and an adaptation of this technique is developed for isolated rebars. To conclude this work, a last part is dedicated to illustrate the power and potentialities of the numerical tool developed during this PhD thesis through various examples of massive structures
Štramberský, Martin. "Návrh předpjaté nádrže." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2014. http://www.nusl.cz/ntk/nusl-226967.
Повний текст джерелаKhan, Inamullah. "Etude expérimentale de la corrosion en béton armé." Thesis, Toulouse, INSA, 2012. http://www.theses.fr/2012ISAT0043/document.
Повний текст джерелаThe thesis aims to study the effect of corrosion on the mechanical properties of reinforced concrete reinforced concrete structures in chloride environment. Experiments were carried out in order to investigate the different mechanical properties such as bending strength, shear strength etc. The experimental work consists of two parts; in the first part small annular cement sand mortar samples were tested in order to observe the effect of cracks on corrosion. Results show that cracks whatever their width allows the corrosion onset at bottom of cracks and along the steel-concrete interface damaged zone caused by the creation of cracks. In the second part an extensive study was carried out on a 26-year-old corroded reinforced concrete beam and a non-corroded of same age in order to better understand the effect of corrosion on reinforced concrete members in flexion and shear. Impact of corrosion on the mechanical properties of steel in reinforced concrete was studied. A new model was proposed for the relationship between corrosion cracks width and loss of steel cross-section
Matušíková, Anna. "Navrhování konstrukcí s FRP výztuží." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2012. http://www.nusl.cz/ntk/nusl-225478.
Повний текст джерелаDang, Vu Hiep. "Phases d'initiation et de propagation de la corrosion des armatures du béton armé fissuré en environnement carbonique ou salin." Thesis, Toulouse, INSA, 2013. http://www.theses.fr/2013ISAT0039/document.
Повний текст джерелаThis thesis aims to study the reinforcement corrosion embedded in reinforced concrete structures on both initiation and propagation of corrosion and its long-term consequences on the service life of structures. Firstly, a long-term study on the conditions for the initiation and propagation of corrosion in saline environment is presented and the first results confirm the early initiation of corrosion, but shows that the influence of pre-cracks on the propagation of corrosion depends on their conditions of exposure and concrete cover thickness. A study was conducted in carbon dioxide condition with presence of cracks to examine its impact on the initiation and propagation of corrosion. The results showed that whatever the mechanical crack opening, the crack edge and the steel-concrete interface were carbonated. Carbonation of the steel-concrete interface is likely to be due to mechanical damage induced by loading and stress transfer from the steel to mortar when creating cracks. This damage is also caused by the presence of internal micro-cracks around the steel bar. Following exposure to wetting-drying cycles, corrosion develops throughout the reinforcement but with a greater thickness of rust layer on the underside of the reinforcement where the quality of the interface is weaker. The results showed that the corrosion cracking induced by the development of rust layer arises from internal micro-cracks due to mechanical damage. This result is consistent with the development of corrosion cracks observed previously in saline environment. Another part of the thesis is to study the residual mechanical properties of corroded reinforced concrete beams of 26-28 years exposed to a saline environment under bending load. The behavior of single tensile steel corroded extracted from these corroded beams is studied. It is very difficult to know the true stress of tensile steels corroded "naturally" in concrete contaminated by exposure to chlorides. Indeed, the corrosion induced by chlorides leads to create corrosion pits with various geometries that make it difficult to determine accurately the residual steel cross-section. However, it appears that the true yield stress is unaffected, the true ultimate stress is slightly increased by corrosion but the total elongation at failure is drastically reduced by the presence of pitting corrosion. The effect of reinforcement corrosion on flexural behavior is then studied. The corrosion resulted in a change in failure mode, from concrete crushing in compression after yielding of tensile steel to brittle failure of tension reinforcement. The decrease of the load bearing capacity is proportional to the loss of steel section in the mid-span section. The loss of ductility or decrease in deflection at failure of reinforced concrete beams is very important and could be the limiting factor for the service life of corroded RC structures. It appears that the change in ductility of corroded reinforced concrete beam is correlated with the change in ductility of the steel due to corrosion. The effect of corrosion on the shear behavior is then studied. To make this, the short-shear span beams (deep beams) were tested under three point bending until failure. The results showed that corrosion can lead to changes in mechanical behavior but load bearing capacity of deep beams is generally unaffected by corrosion of longitudinal reinforcement and stirrups. These results can be explained by a coupled behavior between arch action and beam action leading to change in load transfer mechanism and failure mode. In addition, the capacity of straight end anchorage of corroded reinforcement appears to be very much higher than expected despite the presence of corrosion cracks. Concrete confinement effect due to the end support reaction and the “natural” corrosion condition which do not lead to a homogeneous damage all around perimeter of re-bars may explain these surprising results
Abgrall, Cédric. "Allocation de ressources dans les réseaux sans fil denses." Phd thesis, Télécom ParisTech, 2010. http://pastel.archives-ouvertes.fr/pastel-00581776.
Повний текст джерелаWilkinson, Timothy James. "The Plastic Behaviour of Cold-Formed Rectangular Hollow Sections." University of Sydney. Department of Civil Engineering, 2000. http://hdl.handle.net/2123/843.
Повний текст джерелаChan, Teck-Wai. "Proximity-to-separation based energy function control strategy for power system stability." Thesis, Queensland University of Technology, 2003. https://eprints.qut.edu.au/15840/1/Teck-Wai_Chan_Thesis.pdf.
Повний текст джерелаChan, Teck-Wai. "Proximity-to-Separation Based Energy Function Control Strategy for Power System Stability." Queensland University of Technology, 2003. http://eprints.qut.edu.au/15840/.
Повний текст джерелаCalvente, René Matias. "Méthodologie de contrôle en place des micropieux à partir d'essais dynamiques." Thesis, Clermont-Ferrand 2, 2014. http://www.theses.fr/2014CLF22471/document.
Повний текст джерелаThe review of the state-of-the-art of micropiles produced as part of this work allows to identify a wide variety of construction methodologies which have a stress-strain behavior difficult to predict. As for the testing methods, there are methods for assessing the condition of piles or shafts but they are not always applicable to the micropiles; and in terms of the control of mechanical behavior, the most used load testing micropile is the uplift static load test. The static load test is easy to perform and interpret, however the reaction system is cumbersome and slow to erect, therefore this test is time and cost consuming. Another type of test that can be used in the control of deep foundations is the dynamic load testing. The literature review helped to identify the advantages and disadvantages of this type of test that has been adapted and validated in control of pile behavior. The new methodology proposed in this work is based on low-strain dynamic test requiring a smaller impact energy than a high-strain dynamic test. The testing protocol and loading device of the methodology have been calibrated and validated by numerical simulations in order to justify the choice of the impact energy, the weight of hammer and the cushion that will be used. The numerical observations are then verified by experiences in full-scale micropiles installed in an experimental site developed as part of this project. The developed in situ control methodology of the resistance in service of micropiles is an original method, easy to carry out, simple to execute and with an immediate interpretation. This methodology has been validated on full-scale micropiles in contained conditions and also in uncontained conditions in three real projects of micropiles. Finally, the advances in the investigations have led to develop a methodology for control the micropile’s ultimate resistance. We propose to use an analytical model for predicting the stress-strain behavior, which must be supplied with the results of the low-strain dynamic micropile test and of a complementary geotechnical test in order to examine the parameter of soil failure. The goal of this development is to provide a method for predict the micropile’s ultimate resistance without compromising its integrity. The results of the application of the new method to the experimental micropiles are in close agreement with the results observed in the static load test
La revisión del estado del arte en relación a micropilotes, realizada en este trabajo, ha permitido identificar una gran variedad de técnicas de construcción, donde la predicción de sus comportamientos mecánicos, es una tarea difícil de realizar. Con respecto a los métodos de control, desde el punto de vista de la integridad, existen actualmente métodos no siempre aplicables a los micropilotes, y desde el punto de vista del control del comportamiento mecánico, el ensayo más utilizado es el ensayo de arrancamiento. El ensayo de arrancamiento es de fácil realización e interpretación, sin embargo es oneroso, por su larga duración y la necesidad de disponer de equipos muy pesados.Otro tipo de ensayo, que es utilizado para el control de fundaciones profundas en general, es el ensayo de carga dinámica, cuyas ventajas y desventajas han sido identificadas en la investigación bibliográfica.La nueva metodología propuesta, motivo de este trabajo, está basada en los ensayos de carga dinámica a baja deformación, donde se necesita una energía de impacto mucho menos importante que en el caso de los ensayos clásicos de carga dinámica.El protocolo de la metodología y su dispositivo de ensayo han sido calibrados y validados a partir de simulaciones numéricas con el fin de, principalmente, justificar la elección de la energía de impacto, de la masa del martillo y del amortiguador a utilizar. Las observaciones numéricas han sido, luego, verificadas experimentalmente sobre micropilotes a escala real, instalados en un sitio experimental desarrollado en el marco de este proyecto.La metodología de control in situ, de la resistencia en servicio de micropilotes, desarrollada en este trabajo, es un método original, simple de realizar, con un sistema fácil de instalar y de interpretación inmediata. Ella ha sido validada, en el caso de micropilotes a escala real en condiciones controladas en el sitio experimental, y no controladas en el caso de tres proyectos reales.Además, el avance en las investigaciones, dio lugar al desarrollo de una metodología de control de la resistencia límite de micropilotes. Para ello proponemos utilizar un modelo analítico de predicción del comportamiento esfuerzo-deformación alimentado por resultados del ensayo de carga dinámica a baja deformación y de un ensayo complementario de reconocimiento de los parámetros de ruptura del suelo. El objetivo de este desarrollo es de proponer un método de predicción de la resistencia límite de micropilotes sin comprometer su integridad. La aplicación de la metodología ha mostrado que los resultados son muy cercanos a los observados en los ensayos de carga estática
"Capacity Limit, Link Scheduling and Power Control in Wireless Networks." Doctoral diss., 2013. http://hdl.handle.net/2286/R.I.18780.
Повний текст джерелаDissertation/Thesis
Ph.D. Electrical Engineering 2013
CHENG, CHUN-YEN, and 鄭俊煙. "Upper bound limit analysis for the bearing capacity of shallow foundation on slope." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/29391553793382615666.
Повний текст джерела