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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 24 for “"round-off"”.
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Parameter estimation for series observed with round-off error
… of measurement error almost always present is rounding error. A procedure is proposed for estimating parameters of a finite moving average time series which is observed only after rounding. Method of moments estimators are proposed for estimation of parameters of time series observed with …
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Discretization and round-off errors in the finite element analysis of elliptic boundary value problems and eigenvalue problems.
Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics. Thesis. 1971. Ph.D.
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On the computation of probabilities and eigenvalues for random and non-random matrices
… on non-integers and not obtaining a single round-off error? For n < 12, the algorithm used in this thesis does exactly that. We took advantage of a floating point property that we have not seen used before. If only we had quad precision we could have gone even further and extended the …
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Análise estática de placas pelo método combinado elementos finitos - matriz de transferência
… there is a degeneracy in the accuracy due to round off errors with increasing the strips of combined method.
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On the application of finite element analysis to wave motion in one-dimensional waveguides
… FE discretisation errors and errors due to round-off of inertia terms are described. A method using concatenated elements is proposed to reduce those round-off errors. Conditioning of the eigenvalue problem is discussed. An application of singular value decomposition is proposed to reduce …
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Convergence of material balance in mathematical simulation of petroleum reservoirs
… are introduced by truncation errors, machine round-off errors, and by the use of finite difference approximations to represent nonlinear partial differential equations.</p> <p>A new procedure called Error Matrix Technique has been developed for reduction of material balance errors. This …
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Aspects of Roman siegecraft
… analyses of Roman artillery and siege-machinery round off the work, exposing several persistent fallacies concerning the operation and siting of stone-projecting catapults, and discussing the function of the different siege machines. Finally, amongst other myths, the recurring theme of decline in …
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Model-Order Reduction Techniques for Circuits and Interconnects Simulation
… The method does not suffer from aliasing or round-off errors caused by nonband-limited frequency responses, nor by numerical transforms of a large number of points, respectively.
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An Urban Camp for Boat Building
… ever sees it anyway. At long last I was able to round off the edges only slightly without being corrected, running the sandpaper swiftly and lightly over the edges to soften their sharpness without losing the elegance and fineness of the lines. I barely touched the corners where the three edges …
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Investigating the Maximal Coverage by Point-based Surrogate Model for Spatial Facility Location Problem
… to the surrogate point-based model, and round-off errors induced by the computer representation of numbers. Some factors—including boundary region surrogate points and surrogate point location—were also found to make significant contributions to coverage errors. A surrogate error measure …
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Uncertainty assessment for CFD using error transport equation
… ratio, coordinate transformation etc.), and (iv) round-off errors. In this study an in-depth discussion concerning these issues is presented with an emphasis on the discretization error in regard with the theoretical background, as well as the commonly used methods for identification and …
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Exploiting activated esters in novel chemoselective amide formation reactions
… of pharmaceutically important compounds. To round off the thesis the application of one of the target compounds-benzanilide-was used to develop and synthesise a novel biological probe and to scope out its potential for application in the detection of enzyme-controlled disease. The preliminary …
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Acoustic propagation in nonuniform circular ducts carrying near sonic mean flows
… thereby reducing the computational time and the round-off error encountered in purely numerical techniques. The influence of the throat Mach number, frequency, boundary-layer thickness and liner admittance on both upstream and downstream propagation of acoustic modes is considered. A numerical …
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Pitfalls in Interpreting Umbilical Cord Blood Gases and Lactate at Birth
… when acid-base parameter value decimals are rounded off. A drift of a dichotomy parameter value cut-off due to decimal rounding will result in a shift in distribution of negative and positive cases in a population sample. The findings warrant a discussion on standardization of round-off rule …
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Steigender Einsatz von Leiharbeitnehmenden in der Pflege – Eine empirische Fallstudie zu den Auswirkungen auf die Pflegepersonalausstattung nach Einführung von Pflegepersonaluntergrenzen in einer Universitätsklinik
… change in order to retain or attract nurses. To round off the holistic approach, the professional-political views of interest groups were included. In conclusion the study presents possible influences on nursing staffing and shows strategic recommendations for action for research and practice in …
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Small business strategy: an empirical analysis of the experience of new Scottish firms
… on awareness, funding and ownership, round off the detailed picture provided of performance in the new small firm.
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Einflussfaktoren und Priorisierungskriterien im IT-Portfoliomanagement – Eine theoretische Betrachtung und empirische Analyse am Beispiel der Deutschen Bahn AG
… using the example of Deutsche Bahn AG, which offers interesting insights due to its size and diversity. The study explains the functioning and organizational embedding of IT portfolio management and the relationships within it. It includes a very comprehensive literature research and analysis, …
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A Low Temperature Co-fired Ceramic (LTCC) Interposer Based Three-Dimensional Stacked Wire Bondless Power Module
… at turn-on and 43% voltage overshoot at turn-off compared to the wire bonded module. Through measurements, it has been shown that the conducted noise reduces by 20 dB in the frequency range 20-30 MHz for the 3-D stack compared to the wire bonded counterpart. </p> <p>A simulation methodology …
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Conceptualising and quantifying the nonlinear, chaotic climate: implications for climate model experimental design
… due to IC differences of a similar order to round-off error. In addition, climate distributions constructed using different approaches are found to differ significantly. There is some evidence that ensemble distributions of multidecadal temperature response to transient forcing conditions can …
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Developing a PV and Energy Storage Sizing Methodology for Off-Grid Communities
Combining rooftop solar with energy storage for off-grid residential operation is restrictively expensive. Historically, operating off-grid requires an 'isolated self-consumption' operating strategy where any excess generation is wasted and to ensure reliability you must install costly, polluting …
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