Advanced Research Publications: Technology Journals
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Dynamic Neural Network Model Predictor for Fractal HyperChaotic Attractors Based on MLMA Algorithm
No full textA dynamic neural network model predictor for fractal strange hyperchaoticattractor based on modified Levenberg-Marquardt algorithm (MLMA) isproposed in this article. Six nonlinear fractal strange hyperchaotic attractorsare considered, namely: 1). Rössler’s hyperchaotic system, 2). Chua’smemristor system, 3). Duffing-Van der Pols system, 4). Xu’s hyperchaoticsystem, 5). Lorenz’s hyperchaotic system, and 6). Rabinovich-Fabrikant’ssystem. Neural network models trained with the MLMA are inferred tocapture the dynamics of the six nonlinear fractal hyperchaotic attractors. Thetrained neural network models are validated by: 1). one-step ahead predictionof the training data, 2). one-step ahead prediction of the validation data, 3).Five-step ahead prediction., and 4). Akaike’s final prediction error (AFPE)estimate of the regularized criterion, The results obtained from the studyshows good agreement of the model predictions based on the proposedMLMA algorithm in terms of much smaller prediction and estimation errorsas well as significant reduction in computation times when compared to thetime taken by the actual mathematical models. The proposed techniques andalgorithms can be adapted and deployed for the modeling and prediction ofhighly nonlinear chaotic systems as well as fractal strange and hyperchaoticattractors in engineering, financial, biological and management systems,atmospheric astronomical research, medicine, sciences for modeling,prediction and control
Numerical Modeling of Bioelectromagnetic Fields
No full textThe common way of measuring electrical activities of the human brain due tobody functions is to place electrodes on the scalp (EEG) and with magneticsensors (MEG) placed near the scalp surface. The representation of electricalactivity of the brain using electrical and magnetic measurements is calledelectromagnetic source localization. The quantitative interpretation ofelectroencephalograms (EEGs) and magnetoencephalograms (MEGs) in terms ofthe underlying brain activity, and mathematical models are used to describe boththe source of this activity and the head as a volume conductor. If the source andthe surrounding conductivity distribution are known, electric potential and themagnetic field can be calculated from Maxwell’s equations
Impedance Cardiography Denoising Techniques: A Review
No full textHeart failure is a major health problem worldwide. Many techniques have been evolved in order to detect the blood flow. Perhaps advanced techniques for measuring stroke volume, and cardiac output have been developed to monitor the heart beat and blood flow. Impedance Cardiography is used to derive systolic time intervals, cardiac output and stroke volume.
Parallel Computing for Registration and Visualization of 3D Medical Images
No full textRegistration and visualization of 3D medical images has received ample attention from researchers in past few years. The reasons for this being there are numerous applications in diagnostic as well as treatment settings, benefiting from integrating the complementary character of multimodal images. The second important reason is the recent availability of computing power and computer architecture that can handle the entire bulk of 3D data –even though the size of clinical images has also grown considerably –while older methods often required data reduction of the images to, e.g., a limited point set, surface, or abstract representation
The History of Non- Criminal Background Checks: A Review
No full textSeveral criminal justice and policy researchers have questioned the benefit of conducting pre- employment background checks. Our review of the background check literature suggests that persons with physical and cognitive disabilities have a much higher probability of being financially exploited, neglected, or abused. We recommend a balance of employment for incarcerated persons for re- entry into society, however, caution putting violent felons into employment providing long- term care services
A Review Paper on Walking Wheel Chair
No full textPhysical disability is the most common trouble, generally found in veterans and they are choosing wheel chairs for their mobility but many times using of this wheel chair put them in trouble. Now-ever days electric wheel chairs are also available in the market. Electric wheel chairs are not so user friendly, the disable feel difficult to operate and these are expensive compare to normal wheel chairs more over these wheel chairs cannot move on uneven surface. If we can design a wheel chair which can climb the stairs we can solve most of the problems of disable.Keywords: Veterans wheel chair, walking wheel chair
Semi-Automatic Pesticide Sprayer
No full textThe present idea deals with the designing and fabricating a pesticide sprayer which will be useful and affordable to the farmer which will assist to increase the productivity of crops. As India is agriculture based country and 70% people do farming and related work. Agriculture is required to be boomed to enhance the GDP of the country by improving the productivity. The productivity of the crops can be increased with the help of pest control. Pesticide spraying is the necessary procedure in cultivation of the crops. This process is very time consuming and laborious. Through this project an attempt has been done to improve the method of spraying the pesticide that will enhance the productivity and increase the farmer’s income. The general spraying technique uses hand operated backpack sprayer where constant pumping is required to operate it which is very laborious and time consuming. Moreover, very less area is covered while spraying and hence more time is required to spray the entire land. Also muscular and back pain disorder arises due to carrying 10-20 liters tank on the back. For alleviating these problems during pesticide spraying and accomplishing the timeliness operation an attempt was made to develop semi-automated pesticide sprayer. In this paper the main focus will be on understanding the electronics behind the semi automation of pesticide spray with working and programming of Arduino board and relay circuits in integration with sensors and valves
An Overview of Image Processing System
No full textThis paper deals with the “Hausdorff Distance”. This distance is used to determine the amount of resemblance between two objects. In this paper, I have provided an efficient algorithm to compute the Hausdorff Distance among all possible positions of binary image. We can compare two images using this algorithm nicely. It works with the different size of images even with black and white and colored images too
Voltage Stability Analysis Using Various Indices
No full textVoltage collapse is root cause for the occurrence of blackout in a power system. Present increased load demand on system has put the system in stress condition. In addition, emphasis of all system line connectivity in the form of interconnections has increased the system complexity. This demands the power system engineers to identify or predict the voltage collapse in a power system. This article gives prediction of voltage collapse through various indices. The indices considered here are Voltage Collapse Prediction Index (VCPI) and Line Voltage Stability Index (LVSI). Based on these two indices the bus which is prone to voltage collapse and the line which is prone to voltage instability are identified. VCPI and LVSI have been calculated for various loadings in IEEE 14 bus system and simulation results are presented
Designing & Implementation of Different Filters Used for Duty Calculation
No full textDuty Calculation tool is a tool developed to calculate appropriate current and power duties needed to be applied for particular sequence generator within system. In current implementation scope this tool takes input as imaging sequence file generated by sequence generator. Imaging sequence file contains the information of time Vs amplitude of gradient information's for x, y and z coordinates. RMParser is already developed library used to parse imaging sequence file and retrieve gradient information.Then linear interpolation will be applied to get intermediate gradient values for interval of 4µs. This gradient information is then plotted in GUI section using D3DXGraphics library already developed. In GUI user has a facility to edit filter order and its range. On click of “Display” button Butterworth low pass or Butterworth band pass filter is designed and implemented. A separate library for filter design and implementation is developed with future extensibility to incorporate Chebyshev filter