Global ETD Search

51	Computational Modeling of Slow Axonal Transport of Neurofilaments Li, Yinyun 25 September 2013 (has links) No description available. Physics Biophysics slow axonal transport of neurofilaments stop and go 6-state model partial differential equations computational modeling pulse-escape method laplace transformation
52	Temperaturverhältnisse und Reaktionskinetik beim Ziehen und Wärmebehandeln von Draht Müller, Wolfhart 13 March 1998 (has links) Die Temperaturverhältnisse beim Ziehen und Wärmebehandeln von Draht werden mit mathematisch-analytischen Methoden auf der Grundlage der FOURIERschen Wärmeleitungsgleichung eingehend untersucht. Insbesondere wird unter den spezifischen Wärmeübergangsbedingungen zwischen Draht und Ziehdüse sowie zwischen Draht und Ziehtrommel deren thermische Wechselwirkung analysiert. Ein Näherungsverfahren zur Berechnung der Drahttemperaturen in Zugfolgen unter Berücksichtigung des Ziehdüseneinflusses wird angegeben und mit einem Beispiel zum Nassziehen stark verzinkten Stahldrahts illustriert. Aus geschwindigkeitsabhängig gemessenen Änderungen des Drahtdurchmessers werden unter thermoelastischer Ziehringdurchmesserkorrektur Schmierfilmdicken bestimmt. Diffusionsgleichungen werden analysiert und ein Zusammenhang zur Reaktionskinetik wird hergestellt. Ein neues reaktionskinetisches Werkstoffmodell, das insbesondere auch im Falle stärker anisothermer Verhältnisse, also bei Kurzzeitwärmebehandlung anwendbar ist, wird vorgestellt. info:eu-repo/classification/ddc/620 ddc:620
53	Spojité a diskrétní řízení vozidla. / Continuous and discrete time attitude control of a vehicle Najvarová, Lucie January 2009 (has links) Kontrola řízení vozidla se stala významným problémem v automatizačních aplikacích v automobilovém průmyslu. Ta se stala reálnou díky zavedení různých "by-wire" subsystémů, jako je např. "steer-by-wire," "break-by-wire," atd. Tyto subsystémy reprezentují elektronické ekvivalenty již existujících mechanických a hydraulických subsystémů. Především pak může být zavedeno číslicové řízení, určené na základě vzorkování dynamiky vozidla. Výhodou periodického snímání vstupních veličin je vyvarování se určitých poruch spojitého řízení.
54	Numerical methods for a four dimensional hyperchaotic system with applications Sibiya, Abram Hlophane 05 1900 (has links) This study seeks to develop a method that generalises the use of Adams-Bashforth to solve or treat partial differential equations with local and non-local differentiation by deriving a two-step Adams-Bashforth numerical scheme in Laplace space. The resulting solution is then transformed back into the real space by using the inverse Laplace transform. This is a powerful numerical algorithm for fractional order derivative. The error analysis for the method is studied and presented. The numerical simulations of the method as applied to the four-dimensional model, Caputo-Lu-Chen model and the wave equation are presented. In the analysis, the bifurcation dynamics are discussed and the periodic doubling processes that eventually caused chaotic behaviour (butterfly attractor) are shown. The related graphical simulations that show the existence of fractal structure that is characterised by chaos and usually called strange attractors are provided. For the Caputo-Lu-Chen model, graphical simulations have been realised in both integer and fractional derivative orders. / Mathematical Sciences / M. Sc. (Applied Mathematics) Chaotic system Hyperchaotic system Ordinary differential equation Initial value problem Laplace transform Adams-Bashforth Fractional calculus Atangana-Baleanu Partial differential equation Fractional differential equation 518.4 Initial value problems Laplace transformation Fractional calculus Differential equations, Partial Fractional differential equations
55	Using ClassPad-technology in the education of students of electrical engineering (Fourier- and Laplace-Transformation) Paditz, Ludwig 09 May 2012 (has links) (PDF) By the help of several examples the interactive work with the ClassPad330 is considered. The student can solve difficult exercises of practical applications step by step using the symbolic calculation and the graphic possibilities of the calculator. Sometimes several fields of mathematics are combined to solve a problem. Let us consider the ClassPad330 (with the actual operating system OS 03.03) and discuss on some new exercises in analysis, e.g. solving a linear differential equation by the help of the Laplace transformation and using the inverse Laplace transformation or considering the Fourier transformation in discrete time (the Fast Fourier Transformation FFT and the inverse FFT). We use the FFT- and IFFT-function to study periodic signals, if we only have a sequence generated by sampling the time signal. We know several ways to get a solution. The techniques for studying practical applications fall into the following three categories: analytic, graphic and numeric. We can use the Classpad software in the handheld or in the PC (ClassPad emulator version of the handheld). ClassPad CAS Software Fourier-Transformation Laplace-Transformation lineare Differentialgleichung gewöhnliche Dgl schnelle Fourier Transformation FFT Fourier Polynom Tabellenkalkulation grafische Darstellung Studierende der Elektrotechnik ClassPad CAS software Fourier transform Laplace transform linear differential equation ODE fast Fourier transform FFT Fourier polynomial spreadsheet application graphical representation students of electrical engineering ddc:510 rvk:SD 2009
56	Using ClassPad-technology in the education of students of electricalengineering (Fourier- and Laplace-Transformation) Paditz, Ludwig 09 May 2012 (has links) By the help of several examples the interactive work with the ClassPad330 is considered. The student can solve difficult exercises of practical applications step by step using the symbolic calculation and the graphic possibilities of the calculator. Sometimes several fields of mathematics are combined to solve a problem. Let us consider the ClassPad330 (with the actual operating system OS 03.03) and discuss on some new exercises in analysis, e.g. solving a linear differential equation by the help of the Laplace transformation and using the inverse Laplace transformation or considering the Fourier transformation in discrete time (the Fast Fourier Transformation FFT and the inverse FFT). We use the FFT- and IFFT-function to study periodic signals, if we only have a sequence generated by sampling the time signal. We know several ways to get a solution. The techniques for studying practical applications fall into the following three categories: analytic, graphic and numeric. We can use the Classpad software in the handheld or in the PC (ClassPad emulator version of the handheld). info:eu-repo/classification/ddc/510 ddc:510

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