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This paper gives the reliability model of the natural gas pipeline' corrosion residual strength, considering the ambiguity of pipeline failure criteria when making fuzzy reliability analysis, the function of the structure and function is combined with the profit and loss of the structure's applicability, to gain a new features function, the membership function's complement function is considered as...
The Finite Difference Time Domain method (FDTD) enables simulating electromagnetic wave propagation. To speed up FDTD computations in a multiprocessor system we apply an optimized distribution of the computational load between available processors. The optimization algorithm is based on the analysis of macro data flow graphs of the FDTD programs combined a with a genetic algorithm (GA. We have tested...
Vector control is regard as a major control method on high performance induction motor speed control system. The paper describes the composition of vector control system and control theory, built a simulation model of vector control system based on Matlab/Simulink software, analysis of mutations in a given speed of operation of the motor, and gives the speed and current simulation waveforms. The results...
The oscillatory potentials (OPs) of the electroretinogram (ERG) have long been used to study the progression of a number of retinal disorders. The OP parameters used in these studies are difficult to evaluate directly from the unconditioned ERG signal. Automated OP detection software was developed in MATLAB to extract the OP wavelets, identify peaks, and extract parameters of interest including the...
In recent days, optical fibers have been developed as a transmission medium to carry traffic in order to provide various services in telecommunications platform. Failure of this fibre caused loss of data which can interrupt communication services. Thus, this paper will focus about protection scheme in order to guarantee the survivability of the networks. Besides, the scheme should provide better quality...
Combined with finite element software ABAQUS/Standard, the dynamic response of center pin assembly system on high-speed running is analyzed, which using interaction nonlinear numerical method. The result reveals that with the increase of running speed, contacting force increase and on the other hand, maximum stress, maximum strain and maximum displacement all decrease. This paper provided theoretical...
Arc is one of the most common phenomenon in power system, most of the phenomenon are related to arc phenomena. However, most of software used in the power system simulation do not include arc model, makes it difficult to arc related study, for example circuit breaker and magnetic transient phenomenon. This paper introduced several commonly used black box Arc Model in over-voltage study, analyzed the...
Blended learning based on lecture videos and face-to-face teaching provides good opportunities for students for participation in education, regardless of time or place. This article examines the impacts of blended learning, as it has developed in connection with master studies in information technology, on participation in education and on learning outcomes. The solution is based on face-to-face teaching...
This paper presents a comparison analysis between two engineering software platforms, Matlab/Simulink & PSIM, which are used as major educational tools in the teaching of power electronics and electrical drive courses, in additional to conducted research in these fields. The comparison analysis is based on studying the design simplicity of the module, time consumed in building of the module, accuracy,...
Filtering data in real-time requires dedicated hardware to meet demanding time requirements. If the statistics of the signal are not known, then adaptive filtering algorithms can be implemented to estimate the signals statistics iteratively. This paper aims to combine efficient filter structures with optimized code to create a system-on-chip (SOC) solution for various adaptive filtering problems specially...
Based on bipolar junction transistor (BJT) modeling the theoretical analysis of biasing effect on improvement of linearity and efficiency of RF linear power amplifier (LPA) are introduced, according to these analysis and by using matlab curve fitting toolbox an analytical model for improvement of linearity and efficiency of RF linear power amplifiers (PAs) is introduced. This model simplifies the...
Many-core systems are characterized by a large number of components based on ever-shrinking circuit geometries. System reliability becomes an issue because of the system complexity, the large number of components and nanoscale issues due to soft errors. While information redundancy techniques can be used for fault tolerance, they occupy too much memory space and increase the memory and network bandwidth...
The demand for high speed, low power and low cost for Viterbi decoding especially in wireless communication are always required. Thus the paper presents the design of an adaptive Viterbi decoder that uses survivor path with parameters for wireless communication in an attempt to reduce the power and cost and at the same time increase the speed. The decoder was simulated using MATLAB 7. In the simulation...
Conventional blood pressure meters are based on cuff and are considered being inconvenient for daily monitoring and these are very sensitive to artifacts due to the presence of cuff. By having a cuff, the efficiency of the device will be reduced in terms of power consumption, restriction of frequency and also ease of use. This paper aimed at designing a noninvasive cuff-less blood pressure and pulse...
Radial basis function neural networks (RBFNN) are used to dynamically identify harmonics content in converter waveforms based on p-q (real power-imaginary power) theory. The converter waveforms are analyzed and the harmonic contents are identified over a wide operating range. The proposed RBFNN filtering training algorithm are based on systematic and computationally efficient training method called...
Software development effort estimation is one of the most major activities in software project management. A number of models have been proposed to make software effort estimations but still no single model can predict the effort accurately. The need for accurate effort estimation in software industry is still a challenge. Artificial Neural Network models can be used for carrying out the effort estimations...
The paper contains the concept and the results of research concerning the evolutionary algorithm, identified based on the systems control theory, which was called the Systemic Evolutionary Algorithm (SAE). Special attention was paid to two elements of evolutionary algorithms, which have not been fully solved yet, i.e. to the methods used to create the initial population and the method of creating...
Software Defined Radio (SDR) is a flexible architecture which can be configured to adapt various wireless standards, waveforms, frequency bands, bandwidths, and modes of operations. This paper presents a detailed survey of the existing hardware and software platform for SDRs. It also presents prototype system for designing and testing of software defined radios in MATLAB/Simulink and briefly discusses...
Taking into consideration space applications' demands for higher bandwidth and processing power, we propose to efficiently apply upcoming many-core processors and other Commercial-Off-The-Shelf (COTS) products to improve the on-board processing power.1 2 A combination of traditional hardware and software-implemented fault-tolerant techniques, addresses the reliability of the system. We first describe...
The power generated by solar photovoltaic (PV) module depends on surrounding irradiance, temperature and shading conditions. Under partial shading conditions (PSC) the power from the PV module can be dramatically reduced and maximum power point tracking (MPPT) control will be affected. This paper presents a hybrid simulation model of PV cell/module and system using Matlab®/Simulink® and Pspice®. The...
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