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 47 for “"Linear equation"”.
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Linear equation solving by high school students with mild disabilites
… on the mathematical algorithms for solving linear equations employing as participants high school students identified as having mild-mental handicap. The students received instruction on the mathematical algorithms for solving linear equations. Implementing a multielement design, the …
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An electronic stimulator for the representation of synchronous generators in network analysers
… of a generator are briefly explained, and a non-linear differential equation describing the generator's performance is given. The need for a calculating aid for solving this non-linear equation is explained. An analogue of a generator is derived, and details of a simulator based on this analogue …
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Impact of International Trade on Coffee Industry: The Case of Kagera Region in North-West Tanzania
… method and time series analysis in the form of linear equation to reveal that there is increased import dependency that makes the price of the foreign currency to be highly demanded, hence increasing the running production costs in the coffee industry. This linear equation gives the economic …
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Generalised Markovian analysis of timed transition systems
… the solution to a large set of sparse linear equations known as the steady-state equations. Existing techniques of state space generation are surveyed and a new space-saving probabilistic dynamic state management technique is proposed and analysed in terms of its reliability and space …
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Refraction of isotherms: applications to define rift basin geometry
… in perfect thermal contact and solving Laplace's equation in two dimensions. The normalized heat flow is calculated for the models and is also approximated by an empirically derived equation. The equation for normalized heat flow can be derived from the analytical solution to Laplace’s equation. …
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The temperature distribution on a rotating cylindrical shell in the presence of a primary radiative source and a reflecting and radiating infinite plane
… overall heat transfer coefficient. The non-linear problem is approximated through a perturbation analysis to obtain a linear problem. The solution to the linear equation is found by the Green's function technique. Then some numerical results are obtained for variations in the non-dimensional …
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A hybrid direct-iterative linear solver for chemical process simulation
… results of developing a hybrid direct-iterative linear solver to solve the sparse linear equation systems arising in chemical process simulation. The motivation for this work is to enable simulations of large, complex, and realistic models requiring the computing power of high performance …
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Diffraction by Building Corners at 28 Ghz: Measurements and Modeling
… angles greater than 5 degrees, a simple linear equation was fit to the data and accurately describes the diffraction loss. A logarithmic equation describes the dependence at smaller angles. The model developed shows very good agreement with theory and other measurements. Also included are …
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Implicit Finite Element Contact With a Multigrid Solver on Parallel Computers
… non-smooth as well as algebraically non-linear makes them difficult to solve. Since the bulk of the work in a contact algorithm is associated with solving systems of linear equations, efficient linear solvers are attractive. The geometric multigrid method is an iterative linear equation …
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Modeling avifauna responses to miombo woodland degradation in Serenje district, Central province, Zambia
… were affected by woodland degradation or not. Linear regression analysis was performed on vegetation and avian variables in order to develop models that can predict avian community structure characteristics from habitat factors. Correspondence Analysis was performed on avian community structure …
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Modeling avifauna responses to miombo woodland degradation in Serenje district, Central province, Zambia
… were affected by woodland degradation or not. Linear regression analysis was performed on vegetation and avian variables in order to develop models that can predict avian community structure characteristics from habitat factors. Correspondence Analysis was performed on avian community structure …
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Colapso gravitacional de fluido perfeito em espaços-tempos circularmente simétricos com auto-similaridade cinemática
… various exact solutions to the Einstein field equations are given. These include all the solutions of dust and stiff perfect fluid with self-similarity of the first kind (homothetic) and all the solutions of perfect fluid with a linear equation of state and self-similarity of the zeroth and …
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Analysis of the solar radiation data and the determination of regression coeffients for Vhembe Region, Limpopo Province
… the values of a and b of Angstrom - Prescott linear equation (where N,, and H represent the actual sunshine hours (in hours) and global solar radiation on the horizontal surface (in MJ) respectively. The variables a and b are the regression coefficients. The results obtained are discussed. …
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Heuristics for Multi-period Competitive Pricing Strategies for Manufacturing Companies
… for a given competitor's price based on log linear equation having cross elasticity of demand as coefficients. For every quantity demanded, a cellular manufacturing system is developed and simulation is performed to obtain the revenue and cost. The heuristics are evaluated on the basis of …
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Cheeseweed (Malva Parviflora L.) Competition with Cabbage and Lettuce on Maui, Hawaii
… and weed fresh weights were recorded. Curvilinear and linear relationships between trimmed cabbage fresh weight and weed density were defined by regression equations. Regression equations were also calculated to define the relationship between cabbage fresh weights and weed fresh weight. In …
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A linear framework for character skinning
… space is described by a simple and elegant linear equation. Apart from making it fast and easy to implement, linearity facilitates mathematical analysis. We derive two metrics on the space of vertices (the "'animation space"), which indicate the mean and maximum distances between two points …
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Frontal algorithms for equation-based chemical process flowsheeting on vector and parallel computers
… algorithms for solving the large, sparse, linear equation systems arising in equation-based (EB) chemical process flowsheeting. The frontal approach is generally used as a banded matrix solver in connection with finite element problems. We adapt it here to the more general process …
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An F4-Style Involutive Basis Algorithm
<p>How to solve a linear equation system? The echelon form of this system will be obtained by Gaussian elimination then give us the solution. Similarly, Gröbner Basis is the “nice form” of nonlinear equation systems that can span all the polynomials in the given ideal [4]. So we can use Gröbner …
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A multireference coupled-cluster method using a single-reference formalism.
The coupled-cluster (CC) equations including single, double, triple and quadruple excitations (CCSDTQ) are qraphically derived using Feynman diagrams. These equations are programmed and an iterative reduced linear equation method is used to solve these equations. A few points on the potential …
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The production of temperature and salinity variance and covariance : implications for mixing
… and spice variance under the assumption of a linear equation of state. As a consequence, it is possible to estimate the relative importance of isopycnal and diapycnal mixing in the ocean. While isopycnal and diapycnal processes occur on very different length scales, I find that the …
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