Дисертації з теми "Transformation methods"
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Chin, Wei Ngan. "Automatic methods for program transformation." Thesis, Imperial College London, 1990. http://hdl.handle.net/10044/1/47806.
Повний текст джерелаBandarian, Ellen. "Linear transformation methods for multivariate geostatistical simulation." Thesis, Edith Cowan University, Research Online, Perth, Western Australia, 2008. https://ro.ecu.edu.au/theses/191.
Повний текст джерелаBeach, Nicholas James. "Metathesis Catalysts in Tandem Catalysis: Methods and Mechanisms for Transformation." Thèse, Université d'Ottawa / University of Ottawa, 2012. http://hdl.handle.net/10393/22731.
Повний текст джерелаSophocleous, Christodoulos. "Transformation methods in the study of nonlinear partial differential equations." Thesis, University of Nottingham, 1991. http://eprints.nottingham.ac.uk/11133/.
Повний текст джерелаFears, Justin. "Alternative School Leadership Transformation| A Mixed-Methods Evaluation of Outcomes." Thesis, Lindenwood University, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=10174303.
Повний текст джерелаThis study was a documentation and assessment of Beta Academy Alternative School’s (pseudonym) transition to a newly introduced educational model/ leadership paradigm and examination of student educational outcomes, resulting from the leadership change. As a first year administrator, the researcher undertook the task of transforming an underperforming alternative education program by targeting areas of identified deficiency and/or concern (graduation rates, attendance, and discipline).
In this study, the researcher executed a mixed-method evaluation of the new educational model in an effort to determine contributions to success, potential barriers to change, and the characteristics associated with both, as well as the quantitative analysis that would support or not support the researcher’s hypotheses.
The first goal of the study stated that following the implementation of the new model for alternative education, building discipline referrals would decrease by 10% per semester, as compared to previous referral data. The results indicated a 280% decrease in student referrals, thus illustrating a dramatic and statistically significant decrease.
The second goal indicated that graduation rates would increase or would stay the same, within 2% of previous rates (percentage of total seniors), as compared to the previous year’s results and following implementation of the new educational and leadership paradigms. A z-test for difference in proportion tested a change in graduation rates of less than 1%, thus, supporting the graduation rates goal.
The last goal outlined in the study stated that following the implementation of the new model for alternative education, building attendance would increase by 30% per semester, as determined by ADA hours and compared to previous attendance data. Upon calculation, it was determined that there was an increase in attendance of 36.2% providing statistical support that the increase in attendance was significant, as well as met the outlined goal for attendance improvement.
The qualitative component of the study used responses to a questionnaire analysis to gauge stakeholder involvement and perceptions associated with the new educational model. The feedback was positive and indicated the measured criteria to be impactful and effective in the areas of fidelity, implementation, development, and attainment of desired goals.
Fuchs, Christoph [Verfasser]. "Agile Methods in the Digital Transformation – Exploration of the Organizational Processes of an Agile Transformation / Christoph Fuchs." Berlin : epubli, 2019. http://d-nb.info/1202665128/34.
Повний текст джерелаNgounda, Edgard. "Numerical Laplace transformation methods for integrating linear parabolic partial differential equations." Thesis, Stellenbosch : University of Stellenbosch, 2009. http://hdl.handle.net/10019.1/2735.
Повний текст джерелаENGLISH ABSTRACT: In recent years the Laplace inversion method has emerged as a viable alternative method for the numerical solution of PDEs. Effective methods for the numerical inversion are based on the approximation of the Bromwich integral. In this thesis, a numerical study is undertaken to compare the efficiency of the Laplace inversion method with more conventional time integrator methods. Particularly, we consider the method-of-lines based on MATLAB’s ODE15s and the Crank-Nicolson method. Our studies include an introductory chapter on the Laplace inversion method. Then we proceed with spectral methods for the space discretization where we introduce the interpolation polynomial and the concept of a differentiation matrix to approximate derivatives of a function. Next, formulas of the numerical differentiation formulas (NDFs) implemented in ODE15s, as well as the well-known second order Crank-Nicolson method, are derived. In the Laplace method, to compute the Bromwich integral, we use the trapezoidal rule over a hyperbolic contour. Enhancement to the computational efficiency of these methods include the LU as well as the Hessenberg decompositions. In order to compare the three methods, we consider two criteria: The number of linear system solves per unit of accuracy and the CPU time per unit of accuracy. The numerical results demonstrate that the new method, i.e., the Laplace inversion method, is accurate to an exponential order of convergence compared to the linear convergence rate of the ODE15s and the Crank-Nicolson methods. This exponential convergence leads to high accuracy with only a few linear system solves. Similarly, in terms of computational cost, the Laplace inversion method is more efficient than ODE15s and the Crank-Nicolson method as the results show. Finally, we apply with satisfactory results the inversion method to the axial dispersion model and the heat equation in two dimensions.
AFRIKAANSE OPSOMMING: In die afgelope paar jaar het die Laplace omkeringsmetode na vore getree as ’n lewensvatbare alternatiewe metode vir die numeriese oplossing van PDVs. Effektiewe metodes vir die numeriese omkering word gebasseer op die benadering van die Bromwich integraal. In hierdie tesis word ’n numeriese studie onderneem om die effektiwiteit van die Laplace omkeringsmetode te vergelyk met meer konvensionele tydintegrasie metodes. Ons ondersoek spesifiek die metode-van-lyne, gebasseer op MATLAB se ODE15s en die Crank-Nicolson metode. Ons studies sluit in ’n inleidende hoofstuk oor die Laplace omkeringsmetode. Dan gaan ons voort met spektraalmetodes vir die ruimtelike diskretisasie, waar ons die interpolasie polinoom invoer sowel as die konsep van ’n differensiasie-matriks waarmee afgeleides van ’n funksie benader kan word. Daarna word formules vir die numeriese differensiasie formules (NDFs) ingebou in ODE15s herlei, sowel as die welbekende tweede orde Crank-Nicolson metode. Om die Bromwich integraal te benader in die Laplace metode, gebruik ons die trapesiumreël oor ’n hiperboliese kontoer. Die berekeningskoste van al hierdie metodes word verbeter met die LU sowel as die Hessenberg ontbindings. Ten einde die drie metodes te vergelyk beskou ons twee kriteria: Die aantal lineêre stelsels wat moet opgelos word per eenheid van akkuraatheid, en die sentrale prosesseringstyd per eenheid van akkuraatheid. Die numeriese resultate demonstreer dat die nuwe metode, d.i. die Laplace omkeringsmetode, akkuraat is tot ’n eksponensiële orde van konvergensie in vergelyking tot die lineêre konvergensie van ODE15s en die Crank-Nicolson metodes. Die eksponensiële konvergensie lei na hoë akkuraatheid met slegs ’n klein aantal oplossings van die lineêre stelsel. Netso, in terme van berekeningskoste is die Laplace omkeringsmetode meer effektief as ODE15s en die Crank-Nicolson metode. Laastens pas ons die omkeringsmetode toe op die aksiale dispersiemodel sowel as die hittevergelyking in twee dimensies, met bevredigende resultate.
Smith, Donna Lee. "Development of novel metal-catalysed methods for the transformation of Ynamides." Thesis, University of Edinburgh, 2013. http://hdl.handle.net/1842/8895.
Повний текст джерелаRosas, Martins Sara. "Development of genetic control methods in two lepidopteran species." Thesis, University of Oxford, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.711625.
Повний текст джерелаDobrin, Radu. "Transformation methods for off-line schedules to attributes for fixed priority scheduling /." Västerås : Mälardalen University, 2003. http://www.mrtc.mdh.se/publications/0540.pdf.
Повний текст джерелаSirisuk, Phaophak. "Transformation methods and partial prior information for blind system identification and equalisation." Thesis, Imperial College London, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.326273.
Повний текст джерелаMcCarthy, Aidan. "Digital transformation in education: A mixed methods study of teachers and systems." Thesis, McCarthy, Aidan (2020) Digital transformation in education: A mixed methods study of teachers and systems. Professional Doctorate thesis, Murdoch University, 2020. https://researchrepository.murdoch.edu.au/id/eprint/56439/.
Повний текст джерелаFarhanieh, Arman. "Investigation on methods to improve heat loadprediction of the SGT-600 gas turbine." Thesis, Linköpings universitet, Mekanisk värmeteori och strömningslära, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-124552.
Повний текст джерелаSlaymaker, Mark Arthur. "The formalisation and transformation of access control policies." Thesis, University of Oxford, 2011. http://ora.ox.ac.uk/objects/uuid:179cd9d2-0547-42b7-84a0-690bc4478bfb.
Повний текст джерелаSelek, I. (István). "Novel evolutionary methods in engineering optimization—towards robustness and efficiency." Doctoral thesis, University of Oulu, 2009. http://urn.fi/urn:isbn:9789514291579.
Повний текст джерелаDamouche, Nasrine. "Improving the Numerical Accuracy of Floating-Point Programs with Automatic Code Transformation Methods." Thesis, Perpignan, 2016. http://www.theses.fr/2016PERP0032/document.
Повний текст джерелаCritical software based on floating-point arithmetic requires rigorous verification and validation process to improve our confidence in their reliability and their safety. Unfortunately available techniques for this task often provide overestimates of the round-off errors. We can cite Arian 5, Patriot rocket as well-known examples of disasters. These last years, several techniques have been proposed concerning the transformation of arithmetic expressions in order to improve their numerical accuracy and, in this work, we go one step further by automatically transforming larger pieces of code containing assignments, control structures and functions. We define a set of transformation rules allowing the generation, under certain conditions and in polynomial time, of larger expressions by performing limited formal computations, possibly among several iterations of a loop. These larger expressions are better suited to improve, by re-parsing, the numerical accuracy of the program results. We use abstract interpretation based static analysis techniques to over-approximate the round-off errors in programs and during the transformation of expressions. A tool has been implemented and experimental results are presented concerning classical numerical algorithms and algorithms for embedded systems
Nieuwveldt, Fernando Damian. "A survey of computational methods for pricing Asian options." Thesis, Stellenbosch : University of Stellenbosch, 2009. http://hdl.handle.net/10019.1/2118.
Повний текст джерелаIn this thesis, we investigate two numerical methods to price nancial options. We look at two types of options, namely European options and Asian options. The numerical methods we use are the nite di erence method and numerical inversion of the Laplace transform. We apply nite di erence methods to partial di erential equations with both uniform and non-uniform spatial grids. The Laplace inversion method we use is due to Talbot. It is based on the midpoint-type approximation of the Bromwich integral on a deformed contour. When applied to Asian options, we have the problem of computing the hypergeometric function of the rst kind. We propose a new method for numerically calculating the hypergeometric function. This method too is based on using Talbot contours. Throughout the thesis, we use the Black-Scholes equation as our benchmark problem.
Kelly, Edward Joseph. "Transformation in meaning-making : selected examples from Warren Buffett's life, a mixed methods study." Thesis, Lancaster University, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.553713.
Повний текст джерелаHaasdonk, Bernard [Verfasser]. "Transformation Knowledge in Pattern Analysis with Kernel Methods: Distance and Integration Kernels / Bernard Haasdonk." aachen : shaker, 2006. http://nbn-resolving.de/urn:nbn:de:bsz:25-opus-23769.
Повний текст джерелаTaib, Samsudin Hj. "Interpretation of the aeromagnetic anomalies of mainland Scotland using pseudogravimetric transformation and other methods." Thesis, Durham University, 1990. http://etheses.dur.ac.uk/6076/.
Повний текст джерелаShah, Nehal Rajendra. "Towards Novel Methods of Mutagenesis for Histophilus somni." Thesis, Virginia Tech, 2012. http://hdl.handle.net/10919/43708.
Повний текст джерелаMaster of Science
Skalski, Jonathan Edward. "The Epistemic Qualities of Quantum Transformation." BYU ScholarsArchive, 2009. https://scholarsarchive.byu.edu/etd/2258.
Повний текст джерелаDitzel, Facci Paula. "Dancing Conflicts, Unfolding Peaces: Dance as method to elicit conflict transformation." Doctoral thesis, Universitat Jaume I, 2017. http://hdl.handle.net/10803/404493.
Повний текст джерелаLa presente tesis explora la danza como método para elicitar la transformación de conflictos y desdoblar paces en nivel intrapersonal. Se investiga cómo propiciar un contexto en el cual se haga significativa la experiencia del movimiento corporal consciente en el momento presente, creando condiciones auspiciosas para elicitar conflictos y desdoblar paces. En busca de elementos que concierten tal método, esta pesquisa pone en diálogo interpretaciones de paces con expresiones de danza. Asimismo, se elabora sobre la filosofía de las paces transracionales y sobre el potencial de la danza para la paz, y se sugiere distorsionar tendencias nocivas con equilibrio y consciencia. Se explora también la perspectiva elicitiva de transformación de conflictos y los métodos para facilitarla. Finalmente, se presenta un abordaje teórico y práctico de estos elementos por medio del movimiento corporal consciente, que informa el potencial y las limitaciones de la danza como método elicitivo de transformación de conflictos.
Nyberg, Peter. "Evaluation of two Methods for Identifiability Testing." Thesis, Linköping University, Department of Electrical Engineering, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-51293.
Повний текст джерелаThis thesis concerns the identifiability issue; which, if any, parameters can be deduced from the input and output behavior of a model? The two types of identifiability concepts, a priori and practical, will be addressed and explained. Two methods for identifiability testing are evaluated and the result shows that the two methods work well if they are combined. The first method is for a priori identifiability analysis and it can determine the a priori identifiability of a system in polynomial time. The result from the method is probabilistic with a high probability of correct answer. The other method takes the simulation approach to determine whether the model is practically identifiable. Non-identifiable parameters manifest themselves as a functional relationship between the parameters and the method uses transformations of the parameter estimates to conclude if the parameters are linked. The two methods are verified on models with known identifiability properties and then tested on some examples from systems biology. Although the output from one of the methods is cumbersome to interpret, the results show that the number of parameters that can be determined in practice (practical identifiability) are far fewer than the ones that can be determined in theory (a priori identifiability). The reason for this is the lack of quality, noise and lack of excitation, of the measurements.
Fokus i denna rapport är på identifierbarhetsproblemet. Vilka parametrar kan unikt bestämmas från en modell? Det existerar två typer av identifierbarhetsbegrepp, a priori och praktisk identifierbarhet, som kommer att förklaras. Två metoder för identifierbarhetstestning är utvärderade och resultaten visar på att de två metoderna fungerar bra om de kombineras med varandra. Den första metoden är för a priori identifierbarhetsanalys och den kan avgöra identifierbarheten för ett system i polynomiell tid. Resultaten från metoden är slumpmässigt med hög sannolikhet för ett korrekt svar. Den andra metoden använder sig av simuleringar för att avgöra om modellen är praktiskt identifierbar. Icke-identifierbara parametrar yttrar sig som funktionella kopplingar mellan parametrar och metoden använder sig av transformationer av parameterskattningarna för att avgöra om parametrarna är kopplade. De två metoderna är verifierade på modeller där identifierbarheten är känd och är därefter testade på några exempel från systembiologi. Trots att resultaten från den ena metoden är besvärliga att tolka visar resultaten på att antalet parametrar som går att bestämma i verkligheten (praktiskt identifierbara) är betydligt färre än de parametrar som kan bestämmas i teorin (a priori identifierbara). Anledningen beror på brist på kvalitet, både brus och brist på excitation, i mätningarna.
Carletti, Vincenzo. "Exact and inexact methods for graph Similarity in structural pattern recognition." Caen, 2016. http://www.theses.fr/2016CAEN2004.
Повний текст джерелаGraphs are widely employed in many application fields, such as biology, chemistry, social networks, databases and so on. Graphs allow to describe a set of objects together with their relationships. Analyzing these data often requires to measure the similarity between two graphs. Unfortunately, due to its combinatorial nature, this is a NP-Complete problem generally addressed using different kind of heuristics. In this Thesis we have explored two approaches to compute the similarity between graphs. The former is based on the exact graph matching approach. We have designed, VF3, an algorithm aimed to search for pattern structures within graphs. While, the second approach is an inexact graph matching method which aims to compute an efficient approximation of the Graph Edit Distance (GED) as a Quadratic Assignment Problem (QAP)
Msukwa, Chimwemwe A. P. S. "Traditional African conflict prevention and transformation methods : case studies of Sukwa, Ngoni, Chewa and Yao tribes in Malawi." University of the Western Cape, 2012. http://hdl.handle.net/11394/4646.
Повний текст джерелаThis study sought to investigate if there are common cultural elements for preventing and transforming violent conflict in selected patrilineal and matrilineal tribes in Malawi, as well as selected societies from other parts of Africa. The researcher argues that in both patrilineal and matrilineal tribes in Malawi, violent conflict prevention and transformation methods are inherently rooted in elaborate socio-political governance structures. This also applies to other societies in Africa, such as the pre-colonial traditional societies of Rwanda, the Pokot pastoral community in the North Rift of Kenya, the ubuntu societies in South Africa and the Acholi of Northern Uganda. The basic framework for these structures comprise the individuals (men, women and older children), as the primary building blocks, the family component comprising of the nucleus and extended families as secondary building block and traditional leadership component. Within these socio-political governance structures, individuals coexist and are inextricably bound in multi-layered social relationships and networks with others. In these governance structures, a certain level of conflict between individuals or groups is considered normal and desirable, as it brings about vital progressive changes as well as creates the necessary diversity, which makes the community interesting. However, violent conflicts are regarded as undesirable and require intervention. Consequently, the multi-layered social networks have several intrinsic features, which enable the communities to prevent the occurrence of violent conflicts or transform them when they occur, in order to maintain social harmony. The first findings show that each level of the social networks has appropriate mechanisms for dissipating violent conflicts, which go beyond tolerable levels. Secondly, individuals have an obligation to intervene in violent conflicts as part of social and moral roles, duties and commitments, which they have to fulfil. Thirdly, the networks have forums in which selected competent elders from the society facilitate open discussions of violent conflicts and decisions are made by consensus involving as many men and women as possible. In these forums, each individual is valued and dignified. Fourthly, there are deliberate efforts to advance transparency and accountability in the forums where violent conflicts are discussed. However, in general terms, women occupy a subordinate status in both leadership and decision-making processes, though they actively participate in violent conflict interventions and some of them hold leadership positions. In addition, the findings show that the tribes researched have an elaborate process for transforming violent conflicts. This process includes the creation of an environment conducive for discussing violent conflicts, listening to each of the disputants, establishing the truth, exhausting all issues, reconciling the disputants and in case one disputant is not satisfied with the outcomes of the discussions, referring the violent conflict for discussion to another forum. Furthermore, individuals in both patrilineal and matrilineal tribes are governed by moral values including respect, relations, relationships, interdependence, unity, kindness, friendliness, sharing, love, transparency, tolerance, self-restraint, humility, trustworthiness and obedience. These moral values enhance self-restraint, prevent aggressive behaviour, as well as promote and enhance good relationships between individuals in the family and the society as a whole. The researcher argues that the positive cultural factors for prevention and transformation of violent conflict, outlined above, which are inherent in the traditional African socio-political governance system should be deliberately promoted for incorporation into the modern state socio-political governance systems through peace-building and development initiatives as well as democratisation processes. This could be one of the interventions for dealing with violent conflict devastating Africa today.
Howe, Bill. "Gridfields: Model-Driven Data Transformation in the Physical Sciences." PDXScholar, 2006. https://pdxscholar.library.pdx.edu/open_access_etds/2676.
Повний текст джерелаHuang, Chien-Chung. "Discrete event system modeling using SysML and model transformation." Diss., Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/45830.
Повний текст джерелаMoog, Mathieu. "Carbon dioxide at extreme conditions : liquid(s), crystals, glasses and their transformation from ab initio topological methods." Electronic Thesis or Diss., Sorbonne université, 2019. http://www.theses.fr/2019SORUS263.
Повний текст джерелаAlthough carbon dioxide is well known for its impact on the atmosphere, it is also an important constituent of the mantle of earth. As such, it is implicated in a number of geological events, notably in earthquakes and volcanism. In this thesis we aim at understanding the behavior of carbon dioxide in the lower mantle, where it is likely formed through reactions between carbonates and silicon dioxide. Indeed, the properties of carbon dioxide, and most notably its polymerization mechanisms may impact the reactivity of the mantle and therefore impact the chemical properties occurring within it. In this work we use state of the art topological descriptors and ab initio simulation methods to study the polymerization mechanisms that occurs under the extreme conditions corresponding to the lower mantle of Earth. We notably show the existence of four distinctive fluids that coexist at those conditions, including: a reactive molecular fluid with the regular formation of dimers allowing the exchange of oxygen between carbon dioxide molecules; a very reactive polymeric fluid which forms a complex network in perpetual evolution; and a very sluggish liquid, very similar to an amorphous solid ; and the standard molecular liquid with long range interactions between carbon dioxide molecules. All of those different fluids occur within the experimental conditions of the lower mantle and therefore may have potential implications for its reactivity and transport properties. The reactive molecular liquid, for example, implies that carbon dioxide will take an important part in the chemical reactions of the mantle
Guo, Ronggang. "Systematical analysis of the transformation procedures in Baden-Württemberg with Least Squares and Total Least Squares methods." Stuttgart : Universitätsbibliothek der Universität Stuttgart, 2007. http://nbn-resolving.de/urn:nbn:de:bsz:93-opus-33293.
Повний текст джерелаPaulauskaitė, Agnė. "Z formaliuju metodu panaudojimas informaciniu sistemu projektavime." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2005. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2005~D_20050520_194937-24216.
Повний текст джерелаFletcher, Kimberley Liane. "The Collision of Political and Legal Time| Foreign Affairs and the Court's Transformation of Executive Authority." Thesis, State University of New York at Albany, 2014. http://pqdtopen.proquest.com/#viewpdf?dispub=3620215.
Повний текст джерелаA dynamic institutional relationship exists between the United States executive branch and the United States Supreme Court. This dissertation examines how the Court affects constitutional and political development by taking a leading role in interpreting presidential decision-making in the area of foreign affairs since 1936. Examining key cases and controversies in foreign policymaking, primarily in the twentieth and twenty-first centuries, this dissertation highlights the patterns of intercurrences and the mutual construction process that takes place at the juncture of legal and political time. In so doing, it is more than evident that the Court not only sanctions the claims made by executives of unilateral decision-making, but also that the Court takes a leading role in (re)defining the very scope and breadth of executive foreign policymaking.
An, Zhong. "Interpretation of X-ray and microwave images : some transform methods and phase unwrapping." Thesis, King's College London (University of London), 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.313792.
Повний текст джерелаNavarro, Quiles Ana. "COMPUTATIONAL METHODS FOR RANDOM DIFFERENTIAL EQUATIONS: THEORY AND APPLICATIONS." Doctoral thesis, Universitat Politècnica de València, 2018. http://hdl.handle.net/10251/98703.
Повний текст джерелаEver since the early contributions by Isaac Newton, Gottfried Wilhelm Leibniz, Jacob and Johann Bernoulli in the XVII century until now, difference and differential equations have uninterruptedly demonstrated their capability to model successfully interesting complex problems in Engineering, Physics, Chemistry, Epidemiology, Economics, etc. But, from a practical standpoint, the application of difference or differential equations requires setting their inputs (coefficients, source term, initial and boundary conditions) using sampled data, thus containing uncertainty stemming from measurement errors. In addition, there are some random external factors which can affect to the system under study. Then, it is more advisable to consider input data as random variables or stochastic processes rather than deterministic constants or functions, respectively. Under this consideration random difference and differential equations appear. This thesis makes a trail by solving, from a probabilistic point of view, different types of random difference and differential equations, applying fundamentally the Random Variable Transformation method. This technique is an useful tool to obtain the probability density function of a random vector that results from mapping another random vector whose probability density function is known. Definitely, the goal of this dissertation is the computation of the first probability density function of the solution stochastic process in different problems, which are based on random difference or differential equations. The interest in determining the first probability density function is justified because this deterministic function characterizes the one-dimensional probabilistic information, as mean, variance, asymmetry, kurtosis, etc. of corresponding solution of a random difference or differential equation. It also allows to determine the probability of a certain event of interest that involves the solution. In addition, in some cases, the theoretical study carried out is completed, showing its application to modelling problems with real data, where the problem of parametric statistics distribution estimation is addressed in the context of random difference and differential equations.
Des de les contribucions de Isaac Newton, Gottfried Wilhelm Leibniz, Jacob i Johann Bernoulli al segle XVII fins a l'actualitat, les equacions en diferències i les diferencials han demostrat la seua capacitat per a modelar satisfactòriament problemes complexos de gran interés en Enginyeria, Física, Epidemiologia, etc. Però, des d'un punt de vista pràctic, els paràmetres o inputs (condicions inicials/frontera, terme font i/o coeficients), que apareixen en aquests problemes, són fixats a partir de certes dades, les quals poden contenir errors de mesura. A més, poden existir factors externs que afecten el sistema objecte d'estudi, de manera que, la seua complexitat faça que no es conega de forma certa els inputs de l'equació que modelitza el problema. Tot aço justifica la necessitat de considerar els paràmetres de l'equació en diferències o de la equació diferencial com a variables aleatòries o processos estocàstics, i no com constants o funcions deterministes. Sota aquesta consideració apareixen les equacions en diferències i les equacions diferencials aleatòries. Aquesta tesi fa un recorregut resolent, des d'un punt de vista probabilístic, diferents tipus d'equacions en diferències i diferencials aleatòries, aplicant fonamentalment el mètode de Transformació de Variables Aleatòries. Aquesta tècnica és una eina útil per a l'obtenció de la funció de densitat de probabilitat d'un vector aleatori, que és una transformació d'un altre vector aleatori i la funció de densitat de probabilitat és del qual és coneguda. En definitiva, l'objectiu d'aquesta tesi és el càlcul de la primera funció de densitat de probabilitat del procés estocàstic solució en diversos problemes basats en equacions en diferències i diferencials. L'interés per determinar la primera funció de densitat es justifica perquè aquesta funció determinista caracteritza la informació probabilística unidimensional, com la mitjana, variància, asimetria, curtosis, etc., de la solució de l'equació en diferències o l'equació diferencial aleatòria corresponent. També permet determinar la probabilitat que esdevinga un determinat succés d'interés que involucre la solució. A més, en alguns casos, l'estudi teòric realitzat es completa mostrant la seua aplicació a problemes de modelització amb dades reals, on s'aborda el problema de l'estimació de distribucions estadístiques paramètriques dels inputs en el context de les equacions en diferències i diferencials aleatòries.
Navarro Quiles, A. (2018). COMPUTATIONAL METHODS FOR RANDOM DIFFERENTIAL EQUATIONS: THEORY AND APPLICATIONS [Tesis doctoral no publicada]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/98703
TESIS
Michaud, Wild Nickie. "Political criticism and the power of satire| The transformation of "late-night" comedy on television in the United States, 1980-2008." Thesis, State University of New York at Albany, 2015. http://pqdtopen.proquest.com/#viewpdf?dispub=3671783.
Повний текст джерелаHow has political comedy on television in the United States changed over time? Earlier examples of political comedy on television were shows like Saturday Night Live and various late night talk shows, which focused primarily on political or personal scandals or personal characteristics, rather than policies or substantive issues. In other arenas of television and the public sphere in general, there was serious criticism of scandals, but not in political comedy. Shows that attempted to criticize politicians or serious public issues using satire, irony, or invective such as The Smothers Brothers Comedy Hour, were routinely censored by network executives. With the advent of cable, and the failures of traditional mainstream journalism after 9/11, a change occurred. The Daily Show with Jon Stewart almost immediately adopted a critical stance on the Bush administration that was widely discussed in "serious" public sphere outlets such as CNN, the New York Times and the Washington Post. This form of "critical comedy" has proved popular. This project examines commentary about such programs in the journalistic sphere from each presidential election cycle from 1980-2008. This includes data from newspapers as well as television news sources. Additionally, I conduct content analysis of sets of Saturday Night Live, The Colbert Report, and The Daily Show from each time period, if the show was being produced. I show that political comedy is increasingly influential in public sphere discussions of presidential politics.
Dietrich, Jan Philipp. "Phase Space Reconstruction using the frequency domain : a generalization of actual methods." Master's thesis, Universität Potsdam, 2008. http://opus.kobv.de/ubp/volltexte/2011/5073/.
Повний текст джерелаAttraktorrekonstruktion („Phase Space Reconstruction“) ist eine Technik, die es ermöglicht, aus einer einzelnen Zeitreihe den vollständigen Phasenraum eines Systems zu rekonstruieren und somit Rückschlüsse auf topologische Eigenschaften dieses dynamischen Systems zu ziehen. Sie findet Verwendung in der Bestimmung von Lyapunov-Exponenten und zur Reproduktion von unbeobachteten Systemgrößen. Es gibt viele verschiedene Methoden zur Attraktorrekonstruktion wie z.B. die Time-Delay-Methode or Rekonstruktion durch Ableitung, Integration oder mithilfe einer Hilbert-Transformation. Zumeist wird der Time-Delay-Ansatz verwendet, es gibt jedoch auch diverse Problemstellungen, in welchen die alternativen Methoden bessere Ergebnisse liefern. Die Kernfragen, die beim Vergleich dieser Methoden entsteht, sind: Wie kommt es, dass alle Ansätze, trotz ihrer teilweise sehr unterschiedlichen Struktur, denselben Zweck erfüllen? Gibt es Übereinstimmungen zwischen all diesen Methoden? Die Antwort lässt sich im Frequenzraum finden: Nach einer Fourier-Transformation besitzen alle genannten Methoden plötzlich eine sehr ähnliche Struktur. Jede Methode transformiert sich im Frequenzraum zu einer einfachen Multiplikation des Eingangssignals mit einer frequenzabhängigen Rekonstruktionsfunktion. Diese Struktur ist in der Datenanalyse auch bekannt als Filter. Aus dieser Perspektive lässt sich jede Rekonstruktionsdimension als gefilterte Zeitreihe der ursprünglichen Zeitreihe interpretieren: Sie enthält den Originaldatensatz, allerdings mit einem verschobenen Fokus: Einige Eigenschaften der Originalzeitreihe werden unterdrückt, während andere Teile verstärkt wiedergegeben werden. Des weiteren zeige ich in der Diplomarbeit, dass nicht jede beliebige Funktion im Frequenzraum zur Rekonstruktion verwendet werden kann. Ich stelle drei Eigenschaften vor, welche jede Rekonstruktionsfunktion erfüllen muss. Unter Beachtung dieser Bedingungen ergeben sich nun diverse Möglichkeiten für neue Rekonstruktionsfunktionen. So ist es z.B. möglich gleichzeitig mit der Rekonstruktion das Ursprungssignal auch zu filtern, oder man kann bereits bestehende Rekonstruktionsfunktionen so abwandeln, dass unerwünschte Nebeneffekte der Rekonstruktion abgemildert oder gar ganz unterdrückt werden.
Rosenbaum, Christopher Michael. "AN OBSERVATIONAL STUDY OF THE METHODS AND PROGRESS IN ENTERPRISE LEAN TRANSFORMATION AT A LEARNING HEALTH CARE ORGANIZATION." UKnowledge, 2013. http://uknowledge.uky.edu/ms_etds/5.
Повний текст джерелаHolefors, Anna. "Genetic transformation of the apple rootstock M26 with genes influencing growth properties /." Alnarp : Swedish Univ. of Agricultural Sciences (Sveriges lantbruksuniv.), 1999. http://epsilon.slu.se/avh/1999/91-576-5477-8.pdf.
Повний текст джерелаDegrou, Antoine Edouard. "Etude de l’impact des procédés de transformation sur la diffusion des caroténoïdes : cas du lycopène de la tomate." Thesis, Avignon, 2013. http://www.theses.fr/2013AVIG0655/document.
Повний текст джерелаCarotenoids are natural fat-soluble pigments synthesized by plants, and especially found in relatively high amounts in numerous fruits and vegetables and which have the visual characteristic of being colored from yellow to red.These compounds were identified as being beneficial to health by epidemiological studies.In order to play a role in body carotenoids have to be absorbed. They must be released from the matrix to pass in the lipid phase of the bolus. Or plant carotenoids are known to have a low bioavailability. The bioavailability increases after transformation. The objective of this work is to understand the effect of manufacturing processes on the bioavailability, developing a simple tool allowing manufacturers to easily evaluate Lycopene tomato was selected as molecule of interest. Therefore we designed a model to evaluate these parameters which can modify carotenoids diffusion. Using this model, even with a large excess of oil, only 31%±1% of lycopene could be extracted from tomato juice to the oil phase. At low (between 0,11 and 1) oil/tomato ratio, extraction of lycopene was limited by saturation of the oil phase. The lycopene diffusion did not vary significantly with pH but it doubled when temperature rose from 10 °C to 37 °C. From these results are calculated factors partition of lycopene in oil and its diffusivity. Secondly, contrasting tomato samples were carried out by using the two industrials methods Hot Break (HB) and Cold Break (CB) in order to verify the effect of processing methods on the diffusion properties of lycopene. Finally, the diffusion test was applied to different matrix, commercial products, or fresh products processed in the laboratory to verify its ability to classifier them. This work gave stable and repeatable results and may be used for a reliable and quick evaluation of the impact of process on food matrix, which could enhance the carotenoid bioavailability. It is also a powerful tool to study the physico-chemical parameters that may affect this bioaccessibility. Results obtained may be used to develop a new model of digestion witch used various parameters highlighted during this study
Brittle, Seth William. "Bioavailability and Transformation of Silver Nanoparticles in the Freshwater Environment." Wright State University / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=wright1484594585990252.
Повний текст джерелаCulver, K. C. "Critical being for pedagogy and social transformation: radically reimagining critical thinking in higher education." Diss., University of Iowa, 2019. https://ir.uiowa.edu/etd/6930.
Повний текст джерелаCannon, Patrick Owen. "Communication for Planetary Transformation and the Drag of Public Conversations: The Case of Landmark Education Corporation." [Tampa, Fla.] : University of South Florida, 2007. http://purl.fcla.edu/usf/dc/et/SFE0002150.
Повний текст джерелаChristensen, Laurene L. "Writing in the Contact Zone: Three Portraits of Reflexivity and Transformation." PDXScholar, 2002. https://pdxscholar.library.pdx.edu/open_access_etds/1886.
Повний текст джерелаPippig, Michael. "Massively Parallel, Fast Fourier Transforms and Particle-Mesh Methods: Massiv parallele schnelle Fourier-Transformationen und Teilchen-Gitter-Methoden." Doctoral thesis, Universitätsverlag der Technischen Universität Chemnitz, 2015. https://monarch.qucosa.de/id/qucosa%3A20398.
Повний текст джерелаDie vorliegende Dissertation beschreibt einen modularisierten Blick auf die Struktur schneller numerischer Methoden für die Berechnung der Coulomb-Wechselwirkungen zwischen Ladungen im dreidimensionalen Raum. Die gemeinsame Struktur ist geprägt durch drei selbstständige und auf einander aufbauenden Algorithmen, nämlich der schnellen Fourier-Transformation (FFT), der nicht äquidistanten schnellen Fourier-Transformation (NFFT) und der NFFT-basierten Teilchen-Gitter-Methode (P²NFFT). Für jeden dieser Algorithmen werden Verbesserungen und parallele Implementierungen vorgestellt mit besonderem Augenmerk auf massiv paralleler Skalierbarkeit. Im Kontext der FFT werden parallele Algorithmen aus den Hardware adaptiven Modulen der FFTW Softwarebibliothek zusammengesetzt. Die neuen NFFT-Konzepte beinhalten abgeschnittene NFFT, Versatz, analytische Differentiation und optimierte Entfaltung im Fourier-Raum bezüglich des mittleren quadratischen Aliasfehlers. Mit Hilfe dieser Verallgemeinerungen bietet die NFFT einen vereinheitlichten Zugang zu Teilchen-Gitter-Methoden. Insbesondere gemischt periodische Randbedingungen werden einheitlich behandelt und Versatz wird effizienter umgesetzt. Heuristiken für die Parameterwahl werden auf Basis sorgfältiger Fehlerabschätzungen angegeben.
Li, Zhe. "Fate of Pharmaceuticals and Their Transformation Products in Rivers : An integration of target analysis and screening methods to study attenuation processes." Doctoral thesis, Stockholms universitet, Institutionen för miljövetenskap och analytisk kemi, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-123752.
Повний текст джерелаAt the time of the doctoral defense, the following papers were unpublished and had a status as follows: Paper 3: Submitted. Paper 4: Manuscript.
Hieber, Nathaniel Paul. "Changes on the Horizon: The Evolution of Transportation Methods and Infrastructure in the American Southwest, 1870-1920." Miami University / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=miami1619098201581259.
Повний текст джерелаLiang, Yental C. T. "The effects of economic transformation upon selected high school vocational education programs in Southern California." CSUSB ScholarWorks, 1996. https://scholarworks.lib.csusb.edu/etd-project/1165.
Повний текст джерелаBahbah, Chahrazade. "Advanced numerical methods for the simulation of the industrial quenching process." Thesis, Université Paris sciences et lettres, 2020. http://www.theses.fr/2020UPSLM012.
Повний текст джерелаQuenching is a heat treatment method where a hot metal part is cooled down rapidly with the help of a quenchant. The purpose of such process is to give a certain microstructure to the metal in order to achieve the required mechanical performance. This process has direct impacts on changing mechanical properties, controlling microstructure and releasing residual stresses. Good control of quenching is essential for correctly controlling the phase changes that take place within the alloy, and obtain the microstructure exhibiting the desired thermomechanical properties. This Phd is done in collaboration with the company Linamar Montupet specialized in the manufacture of complex cast alumnium components for the automotive industry. They are interested in the quenching of metallic parts in liquid quenchants that can vaporize. The vaporizationis generally the leading phenomenon that drives the system. Indeed, the cooling of the part is strongly conditioned by the behavior of the surrounding fluid that extracts the heat therein.Thus, the objective of this thesis is to set a numerical framework able to simulate the quenching process at an industrial scale. In this thesis, different aspects will be studied: (i) analyze and simulate the liquid-vapor-solid interactions with phase change, (ii) simulate fluid-solid interactions to be able to predict the thermomechanical behavior of the solid. The results coming from these numerical development will be validated by confrontations with the experiments proposed in agreement with the industrial partner
Broggi, Francesca. "In vitro methods to study the cytotoxicity, cell transformation capacity and genotoxicity of nanoparticles : application to cobalt ferrite and silver nanoparticles." Thesis, Heriot-Watt University, 2012. http://hdl.handle.net/10399/2618.
Повний текст джерелаWu, Langping [Verfasser], and Stefan [Akademischer Betreuer] Haderlein. "Characterizing transformation processes of environmental contaminants by multi-element isotope analysis – proving concepts and developing methods / Langping Wu ; Betreuer: Stefan Haderlein." Tübingen : Universitätsbibliothek Tübingen, 2020. http://d-nb.info/1206173203/34.
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