Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 273 for “"Lagrange"”.
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The LaGrange Country Club, LaGrange, Illinois
Thesis: B. Arch., Massachusetts Institute of Technology, Department of Architecture, 1960
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ΠΟΛΥΚΡΙΤΗΡΙΑΚΗ ΑΡΙΣΤΟΠΟΙΗΣΗ ΑΠΟΣΥΝΘΕΣΙΜΟΥ ΚΑΤΑ LAGRANGE ΣΥΣΤΗΜΑΤΟΣ
… SUBJECT OF GROUP MULTIOBJECTIVE OPTIMIZATION OFLAGRANGE DECOMPOSABLE SYSTEM IN THE PROCESS OF PRODUCTION OF BENZENE. THE GENERAL CASE, IN WHICH THE LOCAL DECISION MAKERS OF SYBSYSTEMS GENERALLY USE THEIR OWN VIEWS TO WEIGH THE DIFFERENT CRITERIA IN RELATION TO THEIR CRITERIA AND ALLCONSTRAINTS …
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Free-Lagrange simulations of single cavitation bubble collapse.
A Free-Lagrange method has been applied to simulate the collapse of single cavitation bubbles near various boundary types. The simulations resemble an underwater explosion or laser- or spark-generated bubble, where the bubble evolution is driven by a high initial pressure difference between the …
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A Lagrange multiplier method for solving multi-objective linear programs
Thesis: M.S., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 1990
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The Theory and Applications of Discrete Constrained Optimization Using Lagrange Multipliers
Finally, we demonstrate the efficiency and effectiveness of our proposed theory and methods. DLM is able to solve systematically general discrete, continuous and mixed-integer constrained benchmarks, which is a task not achieved by previous methods. DLM has found better multiplierless filter-bank …
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Crafting Lagrange: A Southern Town's Search For Historical Identity In The 1970s
… memorialized a local and individual history. LaGrange, Georgia, was one such town. LaGrange claimed a personal tie to the bicentennial because of its asserted connection to the American Revolutionary hero Marquis de Lafayette, who related the area near Troup County to his French estate. This …
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Lagrange-Deskriptor-Analyse der klassischen Dynamik von Satelliten in Sonne-Planet-Mond-Systemen
… zu bestimmen, die sich in der Nähe der Lagrangepunkte befinden. In dieser Arbeit wird das System bestehend aus dem Stern, dem Planeten, dem Mond und dem Satelliten, der sich in der Nähe von den Lagrangepunkten befindet, untersucht. Dazu wird das Verhalten von Satelliten an diesen Orten …
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Hessian Matrix-Free Lagrange-Newton-Krylov-Schur-Schwarz Methods for Elliptic Inverse Problems
… to the parameters, the state variables, and the Lagrange multipliers. Our approach is known as an "all at once method." An algorithm is proposed for an inverse problem that is capable of being extended to large scales. To overcome storage limitations, we develop a parallel preconditioned …
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Solution of 2-D contact problems using a variational formulation with Lagrange multipliers
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1982.
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Solar Sailing Adaptive Control Around the Earth-Moon Lagrange Point L4 for Stellar Observations
… the neutrally stable dynamics of equilateral Lagrange points and solar radiation pressure. To assess mission feasibility, the spacecraft's trajectory is initially designed using low-thrust propulsion in a nonlinear optimal control problem.</p> <p>We further transition solar sailing periodic …
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Computationally Efficient Optimization of Formation Flying Trajectories, with Solar Radiation Pressure, near Lagrange Points
… intends to operate in the regime of the second Lagrange point (𝐿₂) of the Sun-Earth system. While Sun-Earth 𝐿₂ provides several advantages from an imaging standpoint, it also offers a rich solution space of naturally occurring dynamics well-known to the restricted three-body problem. This …
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Modellierung des Spiekerooger Rückseitenwatts mit einem gekoppelten Euler-Lagrange-Modell auf der Basis von ERSEM
… Die Bewegung des Wassers wird durch einen Lagrange'schen Ansatz beschrieben, bei dem sich volumenbehaftete Tracer entlang eines vorab berechneten Strömungsfeldes bewegen, und jeder Tracer für sich einen Mesokosmos darstellt, in dem das gesamte pelagische Ökosystemmodell von ERSEM simuliert …
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Optimization of Spacecraft Formations about Lagrange Points for the Next Generation Space Weather Prediction Mission
<p>This thesis’s work serves as proof of concept for the Next Generation Space Weather Prediction Mission, a multi-spacecraft mission at various libration points whose objective is to forecast Space Weather hazards with a 12day warning time. This thesis deals with the design and control of orbits …
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Invariant Euler-Lagrange Equations for Variational Problems Defined over Framed Curves in Two and Three Dimensions
… deriving and understanding the invariant Euler-Lagrange equations for variational problems defined over framed curves in two and three dimensions. We make use of the moving frame machinery developed by Fels and Olver ([FO99]) along with the structure of the invariant variational complex as …
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An Economic Analysis of Flood Easements: The Case of the LaGrange Reach of the Illinois River
The results of the case study indicate that total flood costs may be reduced by implementing flood easements. Thus, the null hypothesis is rejected. Model results are robust to changes in the estimated dollar damages, yet extremely sensitive to changes in the hydrological estimates. The modeling …
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The dynamic response of a flexible three-link robot using strain gages, Lagrange polynomials, Fourier series, and the finite element analysis
… elastically under static and dynamic loads. Lagrange polynomials are derived to determine the defected shape of the robotic links. All coefficients of the Lagrange polynomials are functions of the elastic strain at three specific locations on each link. Strains are converted to voltage …
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Pseudonormality and a language multiplier theory for constrained optimization
Lagrange multipliers are central to analytical and computational studies in linear and non-linear optimization and have applications in a wide variety of fields, including communication, networking, economics, and manufacturing. In the past, the main research in Lagrange multiplier theory has …
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Reconstruction from non-uniform samples
… from its non-uniform samples involves the use of Lagrange interpolation, which is impractical to implement as it is computationally difficult. This thesis develops approximate reconstruction methods based on time-warping to obtain reconstruction of band-limited signals from non-uniform samples. A …
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