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.
Results
Showing 1 to 20 of 150 for “"Direct method"”.
-
Liapunov's Direct Method for Stability
No abstract prepared.
-
Efficient direct-method parallel circuit simulation using multilevel node tearing
The direct-method circuit simulation technique solves the entire system at every iteration and thus avoids the problem of slow convergence or even nonconvergence, which could occur when relaxation-based techniques are applied. However, the parallelism of the direct method is not as obvious as that …
-
A Study of Chemical Reactor Stability and Control by Liapunov's Direct Method
Made available in DSpace on 2014-12-08T23:18:07Z (GMT). No. of bitstreams: 1 6507074.pdf: 4927084 bytes, checksum: 8b660313219ee4ac45c0b65be6b71b4c (MD5) Previous issue date: 1965
-
Investigation of a direct method for measuring the resonance escape probability in thorium-water lattices
A direct method for measuring the resonance escape probability, p, in thorium-water lattices was experimentally examined. The system under investigation consisted of a square, close-packed, lattice of hollow aluminum clad thorium metal slugs (1.207 inch O.D., 0.495 inch I.D.) in. water, spaced to …
-
A study of a direct method for measuring the vorticity and divergence at the free surface in a dishpan experiment
Thesis (B.S.)--Massachusetts Institute of Technology, Dept. of Meteorology, 1954.
-
Why Companies Are Using the Indirect Method to Report Operating Cash Flows
… AICPA Board strongly recommended the use of the direct method to disclose the operating section of the statement. As a result of comments to the Exposure Draft, the indirect method was also permitted. At that time, three percent of companies surveyed by the AICPA indicated that they use the …
-
The efficient use of vectorized direct solvers in computational fluid dynamics
The feasibility of using a vectorized banded direct solver for the compressible Euler and Navier-Stokes equations is examined for both single-grid and multi-grid strategies. A procedure is developed for comparing the computational effort required for the direct method with that of the vertical line …
-
Mixed-Field Finite-Element Computations
A new method called the Direct Method is developed to solve for the propagating modes in waveguides via the finite-element method. The variational form of the Direct method is derived to ensure that an extremum is reached. The Direct method uses Maxwell's equations directly, both zero and …
-
The Development and Validation of a Direct LC-MS/MS Assay for the Determination of Tenofovir-diphosphate in Dried Blood Spots for the Analysis of Clinical Samples
… develop a novel sensitive, specific, and robust direct method for the measurement of adherence, utilising tenofovir-diphosphate (TFV-DP) in dry blood spots (DBS) through LC-MS/MS analysis, to replace the current costly and laborious indirect method currently used to elucidate adherence of …
-
Volatility Model Pricing and Calibration with Neural Networks using Bayesian Optimisation
… networks in this paper are trained using an indirect and a direct method. The first step of the indirect method utilises a deep artificial neural network to approximate the pricing function (output) using the parameters as inputs. The second step of the indirect method implements a least …
-
Parametric identification of nonlinear structural dynamic systems
… with extensively in past studies. Identification methods for nonlinear structures have also been introduced in previous articles, including procedures based on the method of multiple scales, iterative and noniterative direct methods, and state space mappings. Here, a procedure is introduced for …
-
A study of the preparation of alpha-diketones
Since the ordinary methods for the preparation of a-diketones are rather long and rarely yield a high percentage of product, the attempt was made to perfect some short, simple, direct method whereby the straight and mixed a-diketones could be prepared.
-
Quantile regression and survival analysis
… regression and survival analysis. Firstly, direct use of regression quantiles to construct confidence intervals and confidence bands for conditional quantiles and prediction intervals for future response variables under homoscedastic linear models and heteroscedastic linear models is …
-
Assessing Behavioral Factors in Myopia: Development of a Visual Activity Survey
… and quantifying risk factors for myopia. Methods: PubMed and Medline were used to find peer-reviewed studies from 1980 to July 2020 investigating near work and myopia. The reference lists of relevant publications were considered as source for additional articles. The development of the UH …
-
Clothing style preference of working women related to self- image/clothing-image congruity and public self-consciousness
… result in differences in ASC or ISSC; and 5) the Direct Method of measuring ASC or ISSC is more predictive of CSP than the Indirect Method. A 7-point Likert Scale was utilized to elicit responses to the four line drawn clothing-styles depicting the dramatic, sporty, feminine, and classic image. …
-
Approximate Similarity Reduction
… via the approximate homotopy symmetry method and approximate homotopy direct method. The approximate homotopy symmetry and homotopy similarity reduction equations of different orders are derived and the corresponding homotopy series reduction solutionsare obtained. As a result, the …
-
Generalized approach to minimal uncertainty products
… saturate uncertainty products using variational methods is developed. Such a method allows one to numerically compute uncertainties in cases where the Robertson-Schrodinger (RS) uncertainty approach fails. To demonstrate the limitations of the RS approach, the ([Delta]x2 )([Delta]p) relation is …
-
The Estimation of Vitamin D2, Vitamin D3, and Their 25-Hydroxy Metabolites in Animal Tissues and Foods (Hplc)
… been hampered by the lack of a quick, sensitive, direct method of measuring vitamin D in tissues and foods. Past studies have relied on biological assays which are time consuming, expensive, equivocate total antirachitic activity with vitamin D levels, and are subjective. Recent physicochemical …
-
Evaluation of zero-dimensional furnace models for biomass-fired boilers with the aid of CFD and plant measurements
… uptake, furnace exit gas temperature (FEGT), and direct radiation impinging on downstream heat exchangers under varying operational conditions. Although radiation heat transfer is highly dependent on three-dimensional geometry, one-dimensional process models that integrate zero-dimensional (0-D) …
Page 1 of 8