Dissertations / Theses on the topic 'Cycles'
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Houriet-Segard, Geneviève. "Logement, cycles démographiques et cycle de vie." Paris, Institut d'études politiques, 1998. http://www.theses.fr/1998IEPP0029.
Full textThis thesis includes three parts. It's objective is to better understanding interactions between demography and housing. Analysis of the demographic cycles influencing the housing demand and the housing market equilibrium: some existing housing market's models with a demographic determinant are reviewed. Such a model is then built up based on French economical data. The model's main hypothesis is that there is a systematic excess of housing supply over demand. The level of this excess has a direct incidence on the price of housing. This model is simulated using various demographic and economical scenarios. Analysis of residential choices during the life cycle: the focus is the household's housing behavior with the saving's life cycle theory (e. G. People buy a house when they are working and sell it when they are retire to compensate the loss of revenue and to maintain the same level of consumption). These behaviors are tested on the data of the French survey "enquete logement 92". Behaviors such as the housing consumption, the tenure choice and the mobility of elder householders are tested in the context of saving's life cycle theory. Microsimulation of the housing market that allows the study of the interactions between aging population, the housing market and intergenerational transfers (bequests and social security programs): at the microeconomic level, this model takes into account a heterogeneous population simulating events such as birth's and death's dates, salary, retirement pension and sometimes inheritances. All people live two periods in their lifetime where they will optimize their consumption following the generalized saving's life cycle theory. Lastly, individual behaviors are aggregated and compiled at a macroeconomic level. This model is also simulated for different demographic and economical evolutions
Csabafi, Tamas Zoltan. "Business cycles, endogenous growth, and monetary cycles." Thesis, Cardiff University, 2015. http://orca.cf.ac.uk/88965/.
Full textAsh, Patricia. "Dominating cycles, Hamilton cycles and cycles with many chords in 2-connected graphs." Thesis, Goldsmiths College (University of London), 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.490379.
Full textDoare-Michel, Nola. "Relations entre cycle de développement familial et cycles d'identité." Université Claude Bernard - Lyon I, 1994. http://www.theses.fr/1994LYO1M292.
Full textWallestad, Kate. "Growing Cycles." VCU Scholars Compass, 2014. http://scholarscompass.vcu.edu/etd/3330.
Full textChampion, Olivier-David. "Cycles d'investissements et cycles électoraux dans les communes françaises." Montpellier 1, 1996. http://www.theses.fr/1996MON10052.
Full textBrunner, Benjamin. "The sulfur cycle: from bacterial microenvironment to global biogeochemical cycles /." Zürich : [s.n.], 2003. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=15197.
Full textBrandsar, Jo. "Offshore Rankine Cycles." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for energi- og prosessteknikk, 2012. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-19069.
Full textKaminanai, Srihder. "Finding Hamiltonian Cycles." TopSCHOLAR®, 2005. http://digitalcommons.wku.edu/theses/504.
Full textVerstraete, Jacques Baudouin Alain. "Cycles in graphs." Thesis, University of Cambridge, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.621434.
Full textDarby, Heather. "Cycles of Nature." VCU Scholars Compass, 2011. http://scholarscompass.vcu.edu/etd/2348.
Full textPowell, Brian Edward. "The influence of minor cycles on low cycle fatigue crack growth." Thesis, University of Portsmouth, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.354380.
Full textCampo, Woytuk Nadia. "Curious Cycles: Feminist Probes for Cultivating Curiosity of the Menstrual Cycle." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-254985.
Full textCurious Cycles svarar mot spänningarna som uppkommer när teknologier designas för menstruation och menstruationscykeln, genom idéer kring nykenhet, att märka, att dela med sig, att ta eller göra plats, och våra relationer med våra kroppar och deras vätskor. Projektet följer en Research through Design metodik, guidad av Soma Design och feministiska forskningsmetoder. Curious Cycles är en uppsättning cultural probes; föremål och interaktioner designade för att samla erfarenheter och insikter från fem menstruerande personer genom deras hela menstruationscykel (vilka pågår cirka en månad). Föremålen är menade att kultivera nykenhet för att framkalla reektioner kring de sätt vi för närvarande relaterar till våra kroppar och kroppsliga vätskor på, och även för att spekulera kring hur vi kan relatera till de i framtiden. Detta arbete närmar sig cultural probes från feministiska perspektiv och bidrar med konceptet "cultivating curiosity", ett sätt att designa teknologier för menstruationscykeln genom att ingående uppmärksamma förändringar av sociala och materiella erfarenheter av kroppen, vilket i sin tur kan utmana kulturella tabun kring menstruation.
Rafiq, M. S. "From shocks to cycles - an examination of Euro area economic cycles." Thesis, Loughborough University, 2008. https://dspace.lboro.ac.uk/2134/8136.
Full textAmar, Denise. "Théorie des graphes, étude de cycles dans les graphes orientés et non orientés : plus long cycle, cycles de longueur donnée, hamiltonisme, pancyclisme." Bordeaux 1, 1985. http://www.theses.fr/1985BOR10617.
Full textJaeger, Robert. "Coloring the Square of Planar Graphs Without 4-Cycles or 5-Cycles." VCU Scholars Compass, 2015. http://scholarscompass.vcu.edu/etd/3816.
Full textWinders, Christopher. "Cycles of cycles : ordering principles suggested by George Perle's twelve-tone tonality /." Digitized version, 2008. http://hdl.handle.net/1802/7600.
Full textIncludes vita and abstract. Accompanies: Concerto grosso for string quartet and string orchestra / by Christopher Clay Winders. Includes bibliographical references. Digitized version available online via the Sibley Music Library, Eastman School of Music http://hdl.handle.net/1802/7600
Kernen, Joakim. "Trends, cycles and institutions : -Job polarization and the business cycle in Europe." Thesis, Uppsala universitet, Nationalekonomiska institutionen, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-367063.
Full textKühn, Daniela. "Cycles, minors and trees." [S.l.] : [s.n.], 2001. http://www.sub.uni-hamburg.de/disse/511/kuehn.pdf.
Full textKaradimitropoulou, Aikaterini E. "Essays in macroeconomic cycles." Thesis, University of Kent, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.580374.
Full textLiu, Kai. "Essays on business cycles." Thesis, University of Cambridge, 2014. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.708384.
Full textFlandrin, Evelyne. "Cycles dans les graphes." Paris 11, 1990. http://www.theses.fr/1990PA112022.
Full textBrowne, J. A. "Multiple expansion refrigeration cycles." Master's thesis, University of Cape Town, 1986. http://hdl.handle.net/11427/23793.
Full textGhazo, Hanna Zeina. "Cycles combinatoires et géométriques." Thesis, Brest, 2020. http://www.theses.fr/2020BRES0006.
Full textThe work in this thesis concerns the combinatorial theory of graphs, algebraic combinatorics and discrete geometry. On one side, it is about enumerating Hamiltonian paths and cycles of a given type in a tournament; On the other side, it studies numerical sequences verifying a quadratic difference equation.Concerning the results of the first part, we find: an equality between the number of Hamiltonians paths (resp. cycles) of a given type, in a tournament and its complement; an expression of the number of Hamiltonian oriented paths of a given type in a transitive tournament in terms of a recursive function F called the « path-function »; and the construction of an algorithm to compute F.In the second part of the work, we study cyclic graphs altogether with a solution to a quadratic difference equation.A parameter of this equation distinguishes real and complex sequences. A correspondence between real solutions and a class of polynomials with positive integer coefficients is established. To complete the correspondence, 1-step Eulerian digraphs interfere. A complex solution determines a closed planar walk in the plane, for which at each step we turn either left or right by a constant angle (the turning angle). This time, cyclotomic polynomials play a major role. Characterizing polynomials that determine such a solution is a problem that we study to the end of finding geometric properties of such polygonal cycles.When the walk exploits the sides of a regular polygon with exterior angle 2 π/n, we find unexpected phenomena when n≥ 12
Calhoun, Kathleen Cluverius. "Layers, Cycles and Stages." VCU Scholars Compass, 2012. http://scholarscompass.vcu.edu/etd/2656.
Full textZhang, Huiyan. "Essays on business cycles." Available to US Hopkins community, 2003. http://wwwlib.umi.com/dissertations/dlnow/3080804.
Full textBécard, Yvan. "Banks and business cycles." Thesis, Paris 1, 2018. http://www.theses.fr/2018PA01E009.
Full textThe main question at the heart of this thesis is, what drives business cycle fluctuations? A growing body of evidence suggests that financial factors and shocks matter most. Based on this premise, I ask whether financial shocks in dynamic macroeconomic models can generate the positive co-movements in output, consumption, investment, and hours worked observed in the data. The first chapter shows that standard models fail in doing so, because they typically imply a countercyclical response of consumption. One solution is to have banks lend both to firms and households, and to assume, that the financial shock is a common credit tightening on both. The second chapter offers a quantitative analysis of this idea. Together with David Gauthier, we motivate what we call the collateral shock by documenting that banks in the US effectively adjust standards in a similar way regard less if the borrower is a firm or a household. We estimate a rich macroeconomic model with Bayesian methods on US financial and macro data over the 1985-2015 period. We find that the collateral shock is the main driver of economic fluctuations. The reason is the collateral shock is able to generate pro cyclical consumption, investment, hours, and credit to firms and households, which are features of US business cycles. The third chapter attempts to go a step further by making lending standards endogenous. The idea is to have banks act as a propagation channel. A shock that emerges in the housing market and that initially affects households is transmitted to firms by a panic-prone financial sector that tightens credit to businesses. This model would replicate the story of the 2008 recession in the United States
Kochersperger, Matthieu. "Cycles proches, cycles évanescents et théorie de Hodge pour les morphismes sans pente." Thesis, Université Paris-Saclay (ComUE), 2018. http://www.theses.fr/2018SACLX041/document.
Full textIn this thesis we are interested in singularities of complex varieties defined as the zero locus of a morphism without slope. In a first time we study nearby cycles and vanishing cycles associated to such morphisms. In a second time we want to understand Hodge theory of morphisms without slope.The first part of this thesis is devoted to add some complements to the work of P. Maisonobe on morphisms without slope. We start with the construction of a comparison morphism between algebraic nearby cycles (for $mathscr{D}$-modules) and topological nearby cycles (for perverse sheaves). Then we show that this morphism is an isomorphism in the case of a morphism without slope. Finally we construct a topological vanishing cycles functor for a morphism without slope et we prove that this functor and the topological nearby cycles functor of P. Maisonobe fit into the expected diagram of exact triangles.In the second part of the thesis we study morphisms without slope for mixed Hodge modules. We first show the commutativity of iterated nearby cycles and vanishing cycles applied to a mixed Hodge module in the case of a morphism without slope. Second we define the notion "strictly without slope" for a mixed Hodge module and we show that it is preserved by proper direct image. As an application we prove the compatibility of the Hodge filtration and Kashiwara-Malgrange filtrations for some pure Hodge modules with support an hypersurface with quasi-ordinary singularities
Yang, Chen. "Thermodynamic Cycles using Carbon Dioxide as Working Fluid : CO2 transcritical power cycle study." Doctoral thesis, KTH, Tillämpad termodynamik och kylteknik, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-50261.
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Male, Rachel Louise. "Developing country business cycles : characterizing the cycle and investigating the output persistence problem." Thesis, University of York, 2009. http://etheses.whiterose.ac.uk/864/.
Full textBazhov, Ivan. "Zero-cycles and constant cycle subvarieties in Calabi-Yau and hyper-Kähler varieties." Thesis, Paris 6, 2017. http://www.theses.fr/2017PA066387/document.
Full textWe present in this thesis three results. In Chapter 2 we prove the existence of a canonical zero-cycle cX on a Calabi–Yau hypersurfacee X in a complex projective homogeneous variety. Namely, we show that the intersection of any n divisors on X , n = dim X is proportional to the class of a point on a rational curve in X. In Chapter 3 we give a new proof of the theorem of Beauville and Voisin about the decomposition of the small diagonal of a K3 surface S. Our proof is explicit and uses the degree 2g-2 embedding of S in projective space of dimension g. It is different from the one used by Beauville and Voisin, which employed the existence of one-parameters familie of elliptic curves. Chapter 4 is devoted to the study of similarities between the Fano varieties of lines on a cubic fourfold, a hyper-Kähler fourfold studied by Beauville and Donagi, and the hyper-Kähler fourfold constructed by Debarre and Voisin in [11]. We exhibit an analog of the notion of "triangle" for these varieties and prove that the 6-dimensional variety of "triangles" is a Lagrangian subvariety in the cube of the constructed hyper-Kähler fourfold
Gatfaoui, Jamel. "Modeling Chinese provincial business cycles." Thesis, Aix-Marseille, 2012. http://www.theses.fr/2012AIXM1110.
Full textThis thesis deals with the Chinese provincial growth cycles over the period 1989-2009. First, we use a variety of techniques to examine the nature and degree of comovement among Chinese provincial growth cycles. We detect different properties of the provincial growth cycles. Using a model-based clustering methodology, we find that provinces can be classified among five major clusters as a function of standard measures of cyclical characteristics. Although the majority of provinces experienced the recession that occurred around the Asian crisis, the nation as whole experienced an expansionary phase. Moreover, all the provinces experienced the recession related to the subprime crisis that occurred in 2007/2008 except Jiangsu and Tianjing. However, All coastal provinces except Hainan are significantly synchronized with the national cycle. Furthermore, we find that the main four national recessions are well diffused across the country. Then, we analyse the co-cyclicality between provinces in each of the six regions defined by Groenewold et al. (2008). We rely on trend-cycle decomposition by using both univariate and multivariate unobserved component model. The majority of provincial cycles reflect demand rather than supply-side shocks. By examining the commonality of provincial growth cycles within each region, we ask whether the definition of these regions is supported by statistical analysis. We find mixed results. Finally, we use a Markov switching model that allow for the identification of business/seasonal cycle interaction
Laimene, Karim. "Analyse des cycles de liquéfaction du gaz naturel. Analysis of natural gas liquefaction cycles." Université catholique de Louvain, 2003. http://edoc.bib.ucl.ac.be:81/ETD-db/collection/available/BelnUcetd-04012003-164249/.
Full textvan, Rij Inge. "The 'Liedersträuße' of Johannes Brahms : song cycles, lyric cycles, multi-pieces or random collections?" Thesis, University of Cambridge, 2002. https://www.repository.cam.ac.uk/handle/1810/251822.
Full textHuang, Lloyd Michael. "Analysis of multi-recycle thorium fuel cycles in comparison with once-through fuel cycles." Thesis, Georgia Institute of Technology, 2013. http://hdl.handle.net/1853/47662.
Full textHussein, Siti Almafahaza. "Business and Real Estate Cycles The Kuala Lumpur Office Market." Thesis, KTH, Bygg- och fastighetsekonomi, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-77472.
Full textBartlett, Michael. "Developing Humidified Gas Turbine Cycles." Doctoral thesis, KTH, Chemical Engineering and Technology, 2002. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3437.
Full textAs a result of their unique heat recovery properties,Humidified Gas Turbine (HGT) cycles have the potential todeliver resource-effective energy to society. The EvaporativeGas Turbine (EvGT) Consortium in Sweden has been studying thesetypes of cycles for nearly a decade, but now stands at acrossroads, with commercial demonstration remaining. Thisthesis binds together several key elements for the developmentof humidified gas turbines: water recovery and air and waterquality in the cycle, cycle selection for near-term, mid-sizedpower generation, and identifying a feasible niche market fordemonstration and market penetration. Moreover, possiblesocio-technical hinders for humidified gas turbine developmentare examined.
Through modelling saltcontaminant flows in the cycle andverifying the results in the pilot plant, it was found thathumidification tower operation need not endanger the hot gaspath. Moreover, sufficient condensate can be condensed to meetfeed water demands. Air filters were found to be essential tolower the base level of contaminant in the cycle. This protectsboth the air and water stream components. By capturing airparticles of a similar size to the air filters, the humidifieractually lowers air stream salt levels. Measures to minimisedroplet entrainment were successful (50 mg droplets/kg air) andmodels predict a 1% blow down from the water circuit issufficient. The condensate is very clean, with less than 1 mg/lalkali salts and easily deionised.
Based on a core engine parameter analysis for three HGTcycle configurations and a subsequent economic study, asteam-cooled steam injected cycle complemented with part-flowhumidification is recommended for the mid-size power market.This cycle was found to be particularly efficient at highpressures and turbine inlet temperatures, conditions eased bysteam cooling and even intercooling. The recommended HGT cyclegives specific investment costs 30- 35% lower than the combinedcycles and cost of electricity levels were 10-18% lower.Full-flow intercooled EvGT cycles give high performances, butseem to be penalised by the recuperator costs, while stillbeing cheaper than the CC. District heating is suggested as asuitable niche market to commercially demonstrate the HGTcycle. Here, the advantages of HGT are especially pronounceddue their very high total efficiencies. Feasibility prices forelectricity were up to 35% lower than competing combinedcycles. HGT cycles were also found to effectively include wasteheat sources.
Keywords:gas turbines, evaporative gas turbines,humidification, power generation, combined heat and powergeneration.
Dalili, Farnosh. "Humidification in Evaporative Power Cycles." Doctoral thesis, KTH, Chemical Engineering and Technology, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3469.
Full textEvaporative gas turbine cycles (EvGT) show an exceptionalexhaust heat recovery potential, which makes them a strongcompetitor to other advanced gas turbine cycles, especiallyfrom small to intermediate sizes. Evaporative gas turbines aredistinguished by humidifying the working fluid beforecombustion at temperatures below the boiling point of water;and the heat required for evaporation of water is partly takenout of the exhaust gas. Thus, humidification is a key operationin these cycles. This thesis investigates, both theoreticallyand experimentally, two alternative approaches tohumidification: the packed-bed humidification tower and thetubular humidifier. Both these equipments involvecountercurrent contact between water and the working fluid.Humidifier design criteria are developed and criticalparameters such as flooding, wetting rate and entrainment arediscussed. The experimental parts were carried out on thepacked-bed tower in the EvGT pilot plant, and on a tubularhumidifier test rig especially erected for this purpose. Thetheoretical models were confirmed by the experiments.
The height of a transfer unit, necessary for designingpacked beds, was calculated for the packing employed in theEvGT pilot plant. It was found that the data provided by themanufacturer may be used with minor corrections.
The tubular test rig operated satisfactorily delivering hothumid air. The theoretical models coincided well with theexperimental results, verifying the design criteria developedhere. The heat transfer calculations indicated that mostresistance to heat transfer is on the exhaust gas side. Thus, asurface extended tube (Sunrod) was used in the test rig. Itcould be concluded that the tubular humidifier is a strongalternative to the packed-bedtower, especially in smallhigh-pressure gas turbines.
Furthermore, the importance of the non-ideality of theair-water vapor mixture in modeling evaporative cycles wasfirst highlighted in this work. Through applying realthermodynamic properties of air-water vapor mixtures in cyclecalculations, it was found that the compressed air contains ahigher amount of moisture than indicated by the ideal gasmixture model. This affects the design of the heat recoverysystem and cannot be neglected.
Key words:evaporative gas turbine, indirect-fired gasturbine, humidification, packed bed, tubular humidifier,evaporator, saturator.
Erdem, Fatma Pinar. "Business Cycles In Emerging Economies." Phd thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12613853/index.pdf.
Full textLinaa, Jesper Gregers. "Business cycles and monetary policy /." Copenhagen, 2005. http://www.gbv.de/dms/zbw/501512020.pdf.
Full textSolomon, Benjamin M. "Who Cycles Into Our Valley." Digital Archive @ GSU, 2012. http://digitalarchive.gsu.edu/english_theses/130.
Full textJacob, David. "Analytical analysis of absorption cycles." Thesis, Georgia Institute of Technology, 1997. http://hdl.handle.net/1853/16094.
Full textPradhan, Pradnya Avinash. "Political monetary cycles in Mexico." Thesis, Georgia Institute of Technology, 1998. http://hdl.handle.net/1853/28929.
Full textMackevičius, Ramūnas. "Logistical analysis of economic cycles." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2012. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2012~D_20121107_091040-28467.
Full textDisertacija skirta logistinei ekonominių ciklų analizei. Darbo tikslas - vadovaujantis ekonomine logistine teorija atskleisti ir nustatyti ciklinio ekonominio svyravimo priežastis. Darbe atliekama teorinė, logistinė ir empirinė ciklinių ekonominių svyravimų analizė. Įvertinant ekonominės logistinės teorijos nuostatas, patikslinama ekonominio ciklo samprata, parengiamas teorinis logistinis ekonominio ciklo modelis ir logistinis ciklinio ekonominės sistemos svyravimo ir raidos tyrimo modelis. Darbe atskleidžiamos vidutinės trukmės ekonominių ciklų susiformavimą veikiančios giluminės priežastys. Nustatoma inovacinių procesų įtaka rinkos susiformavimui, rinkos talpos uždarumo įtaka rinkos kaitimui, rinkos prisotinimui ir paslėptosios perprodukcijos bei burbulo proceso susiformavimui. Taip pat atskleidžiama visų minėtų procesų ir ekonominių paradoksų (didėjančio pelningumo paradokso ir skolos spąstų paradokso) įtaka ekonominio ciklo formavimuisi ir veikimui.
Hardy, Nadia. "Odd cycles in planar graphs." Thesis, McGill University, 2005. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=84037.
Full textDenley, Tristan Mark Joseph. "Cycles, trees and Ramsey numbers." Thesis, University of Cambridge, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.283960.
Full textMainolfi, Nello. "Making cycles, bicycles and macrocycles." Thesis, King's College London (University of London), 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.415446.
Full textToyoda, Hiroki. "Asset Prices and Business Cycles." Kyoto University, 2019. http://hdl.handle.net/2433/236600.
Full textKelly, Luke Tristian. "On cycles in directed graphs." Thesis, University of Birmingham, 2010. http://etheses.bham.ac.uk//id/eprint/940/.
Full textSoames, Kieron, and Jonas Lind. "Detecting Cycles in GraphQL Schemas." Thesis, Linköpings universitet, Institutionen för datavetenskap, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-156174.
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