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The settling mathematics model and numerical method is the main topic in the recent study about sedimentation process. The ideal particular materials are chosen as testing materials, in which the flocculation among the solids particles does not take place or slight flocculation takes place based on material nature characteristics. However, they can not reflect the actual industry sedimentation process...
In this paper, we presented a new analytical model for the transconductance and output conductance of submicron gate-length GaAs MESFET transistors. After an analytical study of the current voltage characteristics, the transconductance and drain conductance mathematical expressions are determined as a function of the drain and gate voltages in different operations regimes (linear, non-linear and saturated)...
The compressible miscible displacement in a porous media is considered in this paper. The concentration is treated by a characteristics collocation method, and the pressure is treated by an orthogonal collocation method. Optimal order estimates in L2-norm and numerical experiment are derived.
In this study, adding coal cinder at bottom of solar pond as a means of increasing temperature of the solar pond is presented. In order to examine the effect of this method applying in large solar pond, a numerical calculation on predicting temperature evolution in large area of salt gradient solar pond is also given with 1-D model. Finally a numerical and experimental study on an experimental solar...
In order to solve the Semidefinite Programming, this paper introduces the recurrent neural network model. By introducing the equivalent variational inequality problem and the neural network which has the same solution with the variational inequality, the model converges to the solution of semidefinite programming. At the same time, numerical simulation also proves it very well. In short, neural network...
Nowadays, Earth observation satellites are widely used to acquire high quality, and the satellites should have more observation missions at the same time. In this case, it is useful to develop a systematic command generation method for satellite pointing to acquire wide area image efficiently. In this paper, three efficient methods are proposed to operate Earth observation satellite attitude pointing...
The Markov chain approximation numerical methods were extended to general controlled nonlinear (and reflected) diffusions with delays in a recent monograph, where many types of ideal algorithms were developed and convergence proved. Any combination of the path, control, and reflection terms can be delayed. If the control and/or reflection terms are delayed, then the memory requirements with naive...
Waste wood, a renewable energy source is used as feedstock for Universiti Teknologi Malaysia's newly-developed two-stage incinerator system. The research goals are to optimize the operation of the thermal system, to improve its combustion efficiency and to minimize its pollutants formation. During experimental work, the feedstock will undergo four different processes; drying, devolatilisation, gasification...
The operation of wireless sensor networks is fundamentally constrained by available energy sources. In this paper, we propose a numerical power estimation technique for register transfer level. This technique allows estimating the power dissipation of components in WSN to their statistical knowledge of primary inputs/outputs. During power estimation procedure, the sequence of an input stream is generated...
This article describes a sensory mapping algorithm based on the simultaneous application of data mining on two sets of data, corresponding to two processes governing customers' preferences: The sensory process, which governs the acceptance of a product as a function of hedonic variables, and the analytical process, which relate the sensory responses to objective analytical properties of the product;...
This paper presents a numerical method to analyze the complex process of fault synchronizing parallel operation. A set of state-space equations is adopted to calculate the transient current and electromagnetic torque of the process. A new type of high-voltage synchronous generator is introduced for fault synchronizing parallel operation.
A part of the signaling systems related to a rapid transit railway is using the track circuit to detect trains and to deliver train operation services on carriage. Because the interval of one block for a rapid transit railway is as long as 1500 [m], transmission of signal information throughout a track circuit has some troubles. So a compensation capacitor should be installed every 20 [m]. Moreover,...
Taking an electric spindle equipped with AMB as the research object, this paper have established the non-linear dynamic model of five degrees of freedom for the rotor-AMB system, and carried on the numerical solution using the principle of multi-scale method and combined with the numerical analysis method. Besides, from the nonlinear viewpoint, the dynamic characteristics of rotor-AMB system have...
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