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 14 of 14 for “"continuous approximation"”.
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Demand Management and Delivery Optimization for E-Retail Fulfillment
… vehicle routing zones for SDD systems. Using continuous approximations to capture average-case operational behavior, we first solve the optimization problem of maximizing the area of a single-vehicle delivery zone as a function of the zone’s distance from the depot. We then demonstrate how to …
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Probabilistic search: a Bayesian approach in a continuous workspace
… search for a single, non-moving target in a continuous environment, where the search agent's only observations are obtained from a binary sensor. To model this problem, the widely used Bayesian filtering approach is employed to obtain the general filtering equations for the posterior …
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A nonstandard optimal control problem arising in an economics application: for royalty payment with piecewise function
… to be equivalent to a certain integral that is a continuous system of y T z. This study presents a continuous approximation of the piecewise constant integrand function by utilizing a hyperbolic tangent (tanh) approach, and solves a case utilizing a C++ shooting algorithm with a Newton …
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Compactons in strongly nonlinear lattices
… is employed throughout this work is the quasi-continuous approximation where the lattice is described by a continuous medium. Here, compactons are found analytically, but they are defined on a truly compact support. Remarkably, both ways give similar qualitative and quantitative results. …
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Optimal patrol routing and scheduling for parking enforcement considering drivers' parking behavior
… discrete mixed-integer programming model, and a continuous approximation model based on the method of continuum approximation. Numerical tests are performed in order to examine the performance of these two models using randomly-generated datasets. Sensitivity analyses show that as parking price …
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Light electric freight vehicles in last-mile delivery
… Liberalization and digitization resulted in a continuous mail market decline. Simultaneously the rise of Internet resulted in a booming e-commerce parcel delivery market. To cope with these ongoing market developments Postal Operators (POs) need to rigorously restructure their delivery networks …
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Parametric Design of Multi-Echelon Last-Mile Delivery Systems Using Novel Technologies
… and vehicle synchronization. Using continuous approximation, we derive closed-form solutions for fleet composition and routing strategies under varying operational scenarios. The analysis yields policy spaces that guide optimal system design based on drone and truck operational …
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An efficient three-dimensional database driven approach for multi scale homogenization
… the boundary conditions prescribed to the RVE. A continuous approximation of the macroscopic quantities is attained using the Moving Least Squares (MLS) approximation method. Subsequent attention is paid to the implementation of the FE2 method and TSD model, for solving structures made of …
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Chebyshev Approximation of Discrete polynomials and Splines
… processor. In many applications, Chebyshev approximation with polynomials and splines is useful in representing a stream of data or a function. Because the impulse/summation approach is developed for discrete systems, some aspects of traditional continuous approximation are not applicable. …
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ADAPTIVE TRANSIT DESIGN AND OPERATION VIA AGENT-BASED SIMULATIONS AND ANALYTICAL MODELS
… agenti e modelli analitici basati su tecniche di continuous approximation. Diverse applicazioni dei modelli proposti, basate su casi di studio reali o reti ideali, verranno presentate con l’obiettivo di analizzare e supportare la progettazione di servizi di trasporto collettivo flessibile e la …
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Static and dynamic models for rebalancing and charging battery-powered mobility
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2027-05-01
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Phase-field modeling of fracture: regularization length insensitivity and mixed mode ductile fracture
… mechanical response, which considers a continuous approximation of a crack boundary with a function of infinite support. The predicted mechanical response and crack paths were validated against experimental results from a three-point bending test on concrete and an in-plane shear test on …
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Models and methods for power monolithic microwave integrated circuits
… electron device characteristics, a data approximation algorithm has been developed for the exploitation in the framework of empirical table look-up nonlinear models. Such an approach is based on the strong analogy between timedomain signal reconstruction from a set of samples and the …
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Scheduling and routing of service trucks and planning of resource replenishment locations for winter roadway maintenance
… (ADP) algorithm. Piece-wise linear functional approximations are used to estimate the value function of system states (i.e., snow plow trucks location over time). We apply our model and solution approach to a snow plow operation scenario for Lake County, Illinois. Numerical results show that …