electrical problem






Ant colony optimization for new redesign problem of multi-state electrical power systems
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The most important phase in many industrial applications is the design problem . Usually the demand increases randomly with time in the form of a cumulative demand curve. To adapt the power system capacity to the demand a new design is predicted. This paper uses an ant

Using Bayesian neural network to solve the inverse problem in electrical impedance tomography
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In this contribution we present a method for solving the inverse problem in electric impedance tomography with Bayesian MLP neural network. The problem of reconstructing the conductivity distribution inside an object from potential measurements from the surface is

Improving efficiency in electrical impedance tomography problem by hybrid parallel genetic algorithm and a priori information
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Electrical impedance tomography (EIT) consists in determining the electric contrast distribution in the interior of a sensing volume by applying an excitation profile to the external surface and measuring the corresponding response on the same surface. The data

Influence of humic acid applications on modulus of rupture, aggregate stability, electrical conductivity, carbon and nitrogen content of a crusting problem soil
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Soil structure is often said to be the key to soil productivity since a fertile soil, with desirable soil structure and adequate moisture supply, constitutes a productive soil. Soil structure influences soil water movement and retention, erosion, crusting, nutrient recycling, root

New Properties of Reactive Elements and the Problem of Propagation of Electrical Signals in Long Lines
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Are examined the laws of the self-induction of capacitance and inductance, which it is customary to assume as reactive elements. It is shown that with the connection to the sources of direct current and voltage they have the effective resistance, which depends on

The approximation problem of electrical filters
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Dr. E. Stiefel in a colloquium concerning electrical filters which was held at the Institute of Applied Mathematics at the ETH in Zurich during the year 1961. I wish to acknowledge my indeptedness to him for his continuing encouragement and interest with which he

Two multigrid algorithms for inverse problem in electrical impedance tomography
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The subject of this paper is an application of the multigrid method to the inverse problem in the Electrical Impedance Tomography. The multigrid algorithm of a new type has been developed for solving this problem , involving near-boundary semi-coarsening cycles within

On the problem of identification and discrimination of electrical earthquake precursors
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The possibility of electrical precursors to earthquakes has long been appreciated, but to date there still exists neither a solid theory to describe the expected precursory waveforms, nor proven techniques to identify and discriminate precursors from noise. In addressing the latter

The inverse problem of electrical capacitance tomography and its application to gas-oil 2-phase flow imaging
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Electrical -capacitance tomography (ECT) is a novel technique for the non-invasive internal visualization of industrial processes such as mixing, separation and multiphase flow, involving electrically nonconducting mixtures. One of the most promising potential

New fast algorithm for solution of electrical tomography problem
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lV ? is produced by active electrodes, located outside of investigated domain Ω. It initiates some distribution of the electric potential inside the domain Ω. The measurements of necessary values would be realized on the boundary curve Γ with another, no active

A novel forward problem solver based on meshfree method for electrical impedance tomography
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In this paper the meshfree method is developed to solve the forward problem for electrical impedance tomography. Differing from finite element method and finite volume method, there is no mesh generation in meshfree method, which is easier to realize and more

Inverse problem solution in electrical capacitance tomography using monotonicity and least squares
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Electrical capacitance tomography (ECT) is concerned with the reconstruction of spatial permittivity distributions in closed pipes or vessels from boundary measurements of inter- electrode capacitances. This measurement principle can, eg, be applied to the estimation of

Problem -Based Learning Applied to Electrical Engineering
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The current debates with respect to the role of the education, of the schools and of the universities within contemporary society, focused on the targets of the education and on their relation with the human being, with society and culture, comprise questions of importance

Implementation model of a problem -based laboratory (PBlab) established for a bachelor of engineering ( electrical ) program at Universiti Teknologi Malaysia
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Problem -based laboratory has since 2007 replaced the conventional instructional based laboratory as the 4th Year Electrical Engineering Laboratory in the curriculum of the Bachelor of Engineering ( Electrical ) program offered at Universiti Teknologi Malaysia. The

The increasing problem of electrical consumption in indoor marihuana grow operations in British Columbia
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The production of marihuana is a criminal activity that is very profitable for offenders and harmful to communities (Plecas, Diplock, Garis). Growers in British Columbia commonly set up their operations indoors, in homes, and other buildings to avoid detection

Elaboration of a complex algorithm of neural network solution of the inverse problem of electrical prospecting based on data classification
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The inverse problem (IP) of electrical prospecting is a complicated high-dimensional illposed problem with a well-known instability. To describe the sought distribution of the electrical conductivity, different parameterization schemes are used. The most general

A new method for the solution of the inverse problem of electrical capacitance tomography and its application to image reconstruction of multiphase flows
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A new method is described for solving the inverse problem of parameter identification (2-D) for the generation of images of the distribution of permittivity in the cross section of a pipe for multiphase flow using Electrical Capacitance Tomography. This method needs an a priori

Self-Explanation in an Introductory Electrical Circuits Course to Enhance Problem Solving
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Worked out examples play a prominent role in engineering education. Learning from examples requires active processing that often does not occur in our students, creating an illusion of understanding that can result in poor test performance 2. How students process

Application of the fuzzy ARTARTMAP neural network to the electrical load forecasting problem
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Expansion planning, power flow, economical operation, security analysis and electric energy system control, are some examples of activities that depend on the knowledge of the load profile [ODonovan, 1983], that is estimating future information of a temporal series

The application of hybrid BEM/FEM methods to solve electrical impedance tomographys forward problem for the human head
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The forward problem in Electrical Impedance Tomography (EIT) requires an accurate estimation of its solution. Although analytical solutions exist for a limited number of cases, there is no suitable analytical solution for the geometry of the human head. A commonly CSE PROJECTS

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