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this paper introduces a new approach for visualizing multidimentional weather-direction-related time-series data sets called “3D Spring Model”. Spring Model is designed to visualize pattern behind large time-series weather data set and to clearify seasonal structure in the data. In addition, it supports visibility of seasonal shift and wind direction anomaly by direct comparison betweem successive...
This paper presents a performance analysis of 3 classical optical flow algorithms (Spatial Correlation-Based Optical Flow (SCOF), Horn-Schunk algorithm (HS) and Lucas-Kanade algorithm (LK)) under the noisy conditions. Moreover the Confidence Based Optical Flow Algorithm for High Reliability (CHR) and Robust Motion Estimation Methods Using Gradient Orientation Information (RGOI) are applied on these...
The influence of annealing treatment on structure properties of the indium tin oxide (ITO) films has been investigated. ITO films annealed to improve quality films were prepared by RF sputtering system at 100 W. The samples at different thicknesses were deposited on non-heated glass slide at room temperature. Annealing temperature in pure nitrogen atmosphere for 15 minutes was varied at 200, 300,...
Wavelet analysis is a significant tool that has been used for speech and image processing. Three wavelet families, Haar wavelet (Haar), Biorthogonal wavelet (Bior) and Discrete approximation of Meyer wavelet (Dmey) are used in this experiment. Eighty speech signal, which are selected from male and female, are used as input signal. Dynamic Time Warping (DTW) technique is applied to determine and adjust...
By coupling a fractal loop resonator onto the back of a loaded-fractal loop monopole and a shorted loop, a new triple-band USB dongle antenna has been achieved and presented. The proposed antenna supports WLAN (2.4–2.5 GHz and 5.15–5.875 GHz) and WiMAX (3.4–3.6 GHz) applications. Omnidirectional radiation patterns for the three bands are observed. The overall dimensions of the fabricated prototype...
Electrical insulators of the Provincial Electricity Authority (PEA) of medium system are mostly porcelain insulator types that consists of suspension, pin type, line post, and pin post insulators. The distribution lines will be polluted by industrial contaminants, salt fog or natural dust. Experience shows that pollution flashover is one of the main natural calamities harming and affecting the voltage...
Optical flow is a technique for identifying the density velocity or motion vector (MV) in each pixel for motion estimation of image sequences. Under the real situation, many undesired conditions usually generate noises over the sequences and therefore this situation is corrupts the performance in reliability of optical flow. In order to increase the reliability of the density velocity, this paper...
This paper proposes a novel decision system that can distinguish the following five phases of a normal gait cycle in real-time - stance, heel-off, swing 1, swing 2, and heel-strike - by using a smart shoe. This decision system employs four sensors to evaluate forces exerted by a foot on the shoe insole during ambulation and a gyroscope, attached at the back of the shoe, to measure angular velocity...
To enhance the reliability of grids and also safety of power instruments, it is too important to distinguish their defects before a complete damage. Therefore insulation modeling of these instruments is noticed to recognize their insulation conditions and performance. In this paper, a simple RC model is used to model the power insulating instrument and PDC test results are used to determine the different...
For the operation of Synchrotron Light Research Institute, the 118 MHz high power source is constructed by combining many medium power generators. As a result, the power combiner has to be designed for high power and low return loss. Quarter wavelength combiner which is made of coaxial cable is the suitable choice for high power but the return loss is not good. To improve such a deficiency, this paper...
This paper proposes a hybrid algorithm for training a feed-forward neural network by combining both Particle Swarm Optimization (PSO) and Information Gain with Backpropagation (BP) algorithm. A conventional neural network training algorithm, i.e. BP, has several drawbacks in its slow convergence and local optima. Although PSO can be applied to search for the near optimal set of weights in the neural...
This paper presents a combination of the ION_Data database of Power Measurement, PQSecure database of Unipower, protection relay data of SEL and protection relay data of AREVA improvement Power Quality Database of Provincial Electrical Authority 2.0 (PQPEA2.0) using Web-based technology. The Provincial Electrical Authority (PEA) will have to spend a lot of money on power quality meters in order to...
A lot of Ultra Wideband (UWB) antenna designs, especially printed antenna, have been proposed so far. However, among those proposed designs, only single unit antenna analysis i.e. return loss and radiation pattern at particular frequencies are usually observed. This paper reports a deeper transmission analysis by considering UWB antenna as a system; so called system characterization. For a specific...
This paper presents a design of 0.6 V class-AB voltage follower (VF) using 0.13 µm CMOS technology. The follower is developed based on the super source follower (SSF) using bulk-driven and quasi-floating gate (QFG) techniques. The proposed VF can operate at low voltage without DC level shift between the input and output terminals. The simulation results show the total harmonic of 0.3 % for an input/output...
Reinforcement learning is a type of machine learning methods that does not require a detailed teaching signal by a human, which is expected to be applied to real robots. In its application to real robots, the learning processes are required to be finished in a short learning period of time. A reinforcement learning method of non-bootstrap type has fast convergence speeds in the tasks such as Sutton's...
This paper presents the simulation of a battery capacity for midsize plug-in hybrid electric vehicle (PHEV). The driving cycles are based on two drive schedules; the urban dynamometer driving schedule (UDDS) and Khon Kaen urban driving schedule (KKUDS) drive cycles. The model consists of mathematics equations for PHEV and it is simulated in MATLAB. As the results, battery capacity can be determined...
This paper presents the use of particle swarm optimization (PSO) algorithm applied to the optimal design of the 4/2 switched reluctance motor (SRM). The main advantage of designing 4/2 SRM is the robust rotor structure for high speed unidirectional rotating applications such as the air conditioner's blower. In the designing process, the finite element method magnetics (FEMM) is also employed to analyze...
This paper is concerned with wavelet-based image denoising using Bayesian technique. In conventional denoising process, The parameters of probability density function (PDF) are usually calculated from the first few moments, mean and variance. In this work, a new image denoising algorithm based on Pearson Type IV random vectors is proposed. Pearson Type IV is used because it allows higher-order moments...
In 2011, India has approximately 171 GW of installed capacity using fossil fuels. The fossil energy sources in Maharashtra state India has been depleting and short fall in centralized energy generation is growing day by day with increasing demand and Maharashtra State Electricity Distribution Company Ltd (MSEDCL) has to carry out heavy forced load shedding. Renewable energy sector growth in India...
This paper presents an alternative method to generate the digital frequency modulation (FM) signal. By summing an information signal m(k) with the oscillating frequency ω0 and putting the result into the cosine function of digital oscillator coefficient which is −2 cos (ω0 +m(k)), the FM signal is obtained. Computer simulations are conducted to show the validity of the proposed FM signal generator
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