Volume 5, Issue 1, January 2014 Edition

Publication for Volume 5, Issue 1, January 2014 is in-process.

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A Survey on Mobile Wireless Networks[ ]


Wireless communication is a transfer of data without using wired environment. The distance may be short (Television) or long (radio transmission). The term wireless will be used by cellular telephones, PDA’s etc. In this paper we will concentrate on the evolution of various generations of wireless network.

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Antimatter Rockets[ ]


The superior energy density of antimatter annihilation has often been pointed to as the ultimate source of energy for propulsion. In our day to day life cost of fuel is being improved. So for launching satellite we need to spend more money for that, to avoid that we just planned to introduce advanced antimatter propulsion rockets. In propulsion power which is created using collision between electron & positron is used. It is a type of ion propulsion rocket. The important factor is availability of fuel, to avoid that we can use this type of rockets. Power produced by this propulsion is very higher than that the any other type of propulsion. In this paper Production and trapping of antiprotons for space propulsion applications are reviewed. Present and foreseeable production rates at Fermi lab are discussed, and experiments on trapping, confinement and transport of large quantities of antiprotons, as well as synthesis of atomic anti-hydrogen, are outlined. Unfortunately, the limited capacity and very low efficiency of present-day antiproton production methods suggest that antimatter may be too costly to consider for near-term propulsion applications.

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Design and Construction of the Coreless Induction Furnace[ ]


The main task of the present work is to design and construct a coreless induction furnace. Many analytical methods could be applied to induction heating and melting problems. The most suitable method for the present work is equivalent circuit method, a second approach is the superposition method, to check the results of the first method in one step of the design.

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Fabrication & Performance Test of a Low Temperature Differential Stirling Engine[ ]


In recent years, understanding of the Stirling engine has enjoyed considerable growth. Research and development on the Stirling engine has steady progressed, and many new insights, inventions, and potential applications have many discovered and explored. One of the most exciting recent developments is the so called “Low temperature differential” Stirling engine. This new type of Stirling is capable of running on very small differences in temperature between the hot and cold sides, or better to say, between the warm and cool sides. Low temperature differential Stirling engine have been built that run on differentials ranging. This means that Stirling engines can now utilize low grade heat sources for their operation ranging from passive solar or geothermal energy to industrial process waste heat. Whether Low temperature differential Stirling engines can be put to practical use is an open question and still the subject of ongoing research and development work is being carried out worldwide at universities, government laboratories, and in private sector.

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The Significance Change of PPG Reflection Index in Left Ventricular Hypertrophy Risk Individual[ ]


This paper describes the significance of the Reflection Index (RI) calculated from the Photoplethysmography (PPG) signals of Left Ventricular Hypertrophy (LVH) risk group. A Dolphin One PPG system has been used in this work. During data acquisition, PPG signals have been recorded from the right index finger of two groups of subjects comprising of healthy and LVH risk subjects. The recording of PPG signal follows a custom protocol. The PPG signals obtained were analysed offline using a custom MATLAB algorithm (Math Work Inc) and SPSS version 11.5. The analysis result comparing between the risk and healthy groups shows that the reflection index (RI) is significantly different between the two groups (p = 0.03). Therefore, PPG parameter, RI may be used to characterize LVH syndrome.

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Numerical Solutions of Two Point Boundary Value Problems Using Collocation Techniques[ ]


A comparative study of weighted residual methods has been made on different types of advection diffusion equations. Both the linear and non-linear models have been discretized by orthogonal collocation method (OCM) and orthogonal collocation on finite elements (OCFE). Model equations have been solved by MATLAB ‘ode15s’ system solver. Numerical values have been compared with analytic ones and interpreted by relative error and L2 norm with respect to space variable, in terms of 2D and 3D plots to check the efficiency of numerical techniques. Non linear model equations have been simulated using the experimental data.

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Access to new Pyranopyrazoles and Related Heterocycles.[ ]


The hitherto unknown 6-amino-4-(4-chlorophenyl)-3-methyl-1, 4-dihydropyrano [2, 3-c] pyrazole-5-carbonitrile 3 was prepared and utilized as a synthon in annulation reactions to get new fused heterocycles. The structural features of these new compounds were confirmed by spectral analysis as well as elemental analyses.

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An Introduction and Prospect of Geothermal Energy in power Sector of Bangladesh[ ]


Power crisis is a major problem for a developing country like Bangladesh. To improve our power system situation geothermal energy can be a viable and useful alternative. Geothermal energy has vast global potential and its development can contribute significantly towards meeting the growing global renewable energy demand in both developed and developing countries. This paper proposes the prospects of geothermal energy in power sector of Bangladesh. The main agenda of this paper is to discuss about the significance and a detailed feasibility study of practical implementation of geothermal power plant in Bangladesh. This paper also emphasis the technological resource in conjunction with the ways in which geothermal energy is converted into electrical energy.

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Examination of Movement of NPA Data over Time in Selected Public Sector Banks in India with Non Parametric Approach[ ]


The research paper is devoted to an analytical study to reveal the movement of the financial parameter, GNPA over time. Diagnostic tool like Quantile Comparison Plots of the Residuals have been used to check the presence of outliers and to detect departure from normality in the residual distribution for our data. Residuals vs Predictor Plot and Absolute Residuals vs Predictors have been employed to examine appropriateness of LOESS Fit (Non Parametric) model for the sample dataset. It is observed that there exist very few outliers in some of the selected banks and residuals follow approximately normal distribution for the sample dataset. It is also observed that LOESS Fit (Quadratic) model fits well with the given dataset and establishes curve linearity. Goodness of fit statistics represented by LOESS R2, Sig of F statistics establishes high precision of the model and excellent fit for dataset in respect of the parameter GNPA. Finally, the LOESS Fit model is extended to get the forecasted values for the respective data-set. Forecasted Values of GNPA for three years (2013, 2014 and 2015) of all the selected PSBs clearly demonstrates steep upward trend in future in respect of the financial parameter GNPA for all the selected PSBs, which is undoubtedly an alarming situation and deserves immediate attention on the part of the regulators to relook into the practices of credit appraisal and monitoring of credit in PSBs in India.

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Effect of Functionally Graded Material of Spacer with Contaminating Particle on Breakdown Voltage inside Gas Insulated Bus Duct[ ]


For the enhancement of insulation reliability and the compact design in gas insulated power equipment, the solid insulators play crucial role of electrical insulation. In order to improve the insulation performance of the solid insulators, we should consider the following two technical points. Firstly, we have to improve the insulation performance of solid dielectrics itself. The second is the control of the electric field distribution in and around the solid insulating spacers. In this paper, we have proposed a new concept for spacer insulation; an application of a functionally graded material (FGM). We investigated the applicability of FGM for reducing the electric stress on triple junction point, which was one of the important factors dominating a long-term insulating property of the solid. Finite Element Method (FEM) has been used throughout this work, for its favorable accuracy, to calculate the electric field distribution inside gas insulated bus duct (GIBD). The electric field distribution around earthed particle contamination which adhered to uniform and FGM of disc-spacer is studied. Electric field relaxation effect (EFGM / Euniform) by introduction of the U-shape FGM spacer is also studied. The breakdown voltage calculations in case of gap with particles contamination are studied. The effect of gas pressure, SF6-gas concentration in various mixtures and the particle dimension (length and hemi-spherical radius) on the breakdown voltage are also studied. Finally, the effect of FGM of spacer on breakdown voltage is also studied.

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RADAR Based Vehicle Collision Avoidance System used in Four Wheeler Automobile Segments[ ]


The Vehicle collision avoidance system in an automobile is used to prevent the accidents and ensure the vehicle safety and reliability. This system can make the job of driving vehicles easier and ensures to manage traffic efficiently with road safety. The proposed system uses Radar sensors (Short range Radars) placed at its front ,these vehicles can detect presence of moving objects in their path, and predict their speed, direction and calculate how to maintain a safe distance from them.At present all the Intelligent Vehicles are being manufactured with inbuilt collision avoidance system as a proactive crash mitigation system. Ranging and detection of the front end vehicles are accomplished by combining the RADAR sensors, Hardware’s, Communication devices and a Risk zone detection algorithm. By combine this makes the use of Vehicle collision avoidance system more perfect and available to the public allowing safe and secure driving experience. The desired speed and distance can be set at several levels according to the situation. The main goal of this proposed work alerts the driver on vehicle positions and will do on auto diagnostic of vehicle.

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Analog Haptic Robotic Arm[ ]


Robotics is an engineering field which has developed since ages and has helped in reduction of human efforts. The invention of robots has increased the precision and repeatability in many fields of operation which would have been difficult using human hands. However, human intervention to control the robot through human actions and gestures extends the domain of its utility. The method adapted to sense human touch and gestures is known as HAPTICS. The robot motion is determined by the haptic feedback received from the user. Haptic feedback refers to the change in the output of a device corresponding to the sense of a human touch. This paper aims at designing and implementation of a haptic robotic arm which can recognize hand gestures of a user. The robotic arm follows the changes in the gestures of the user’s hand. The robotic arm is designed to have three joints consisting of servo motors to provide two degrees of freedom. The human movements are sensed by an electronic component like a potentiometer. The processing of the sensed output will be completely analog in nature which will reduce the effective cost of the robotic arm. Closed loop systems with the help of servo motors have been implemented which drastically reduces the error due to external noise sources.

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Survey and Simulation based Performance Analysis of TCP-Variants in terms of Throughput, Delay and drop Packets over MANETs[ ]


Transmission Control Protocol (TCP) is a reliable which maintains end-to-end senentics and it is one of the core of the internet protocol (IP) suite responsible for transmission of internet traffic and very efficient for wired networks. However, experimental analysis and research showed that, TCP’s congeation control algorithm performs poorly over Mobile Ad-Hoc Networks with degraded throughputs, fairness services and energy consumption. In this paper we present the reviews and simulated result based comparision of TCP-Variants in terms of throughput, delay and packet drop. Our result based analysis showed that, traditional TCP congestion control protocol fails in MANET whereas Proactive and BWE based TCP-variants gives improved performance in terms of throughput, delay and packet drop. Hence there is motivation for RTT and BWE based investigation and research desirable for adapting TCP over Mobile Ad-Hoc Networks.

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Assessment of the environmental impacts on the groundwater resources in Southern part of Nile Delta, Egypt[ ]


This study aimed to give an insight on the environmental impacts on the groundwater aquifer in southern part of Nile Delta. Major and minor ions were determined as well as trace elements are used to determine the chemical types of groundwater and their relations to the prevailing hydrogeological and environmental conditions, and evaluate the suitability of groundwater for different uses. Regarding the chemical properties of groundwater, it was also discussed through the chemical analysis of 80 groundwater samples. The analytical data were interpreted using numerical and graphical methods. Appreciable increase in salinity contents and change in groundwater quality were recorded especially at the central and northeastern parts of the study area. Geochemical model named NETPATH was also used to simulate net geochemical mass–balance transfer of probable minerals and gases and evolution of groundwater in this region.

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Does Organizational Health Enhance the Level of Commitment in Police Employees?[ ]


Present study endeavored to investigate the role of organizational health in enhancing the level of commitment in police employees. A 3x2 factorial design with three levels of job hierarchy (officers, sub-inspectors & constables) and two levels of job tenure [short job tenure (0-5 yrs.) & long job tenure (above 10 Yrs.)] were used in present study .A total of 240 police personnel from Gorakhpur Zone participated as respondents. Organizational Health Questionnaire [30] and Organizational Commitment Scale [3] were used to determine the perception of organizational health and level of commitment of the employee towards their organization. Correlation results evinced that organizational health was positively correlated with various domains of organizational commitment. Organizational health was positively linked with affective commitment, normative commitment and overall commitment. Results revealed that different group of employees varied on perception of organizational health and commitment level. More specifically, police officers perceived greater level of organizational health as compared to sub-inspectors and constables respectively. Similarly, organizational commitments i.e., affective and normative as well as overall commitment were also greater in police officers as compared to sub inspectors and constables.. Findings have been discussed in the light of organizational and personal factors.

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Agglomerative mean shift clustering embedding query set compression[ ]


Agglomerative mean shift clustering is a non parametric clustering because it does not require any prior knowledge about number of clusters and it does not put constraints on the shape of clusters. This approach provides a better quality than other clustering approaches. This algorithm constructs a family of d-dimensional hyper ellipsoids to cover the query set and the point inside each hyper ellipsoid will converge to a local maximum. Centres are used to form a new query set which is a compression of the original set with a reduced time complexity. This deals with each iteration level clustering to be done. The time complexity is mainly reduced due to the compression of the query set which results in better clustering.

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THE EFFECTIVE APPROACH FOR COLOR IMAGE COMPRESSION BASED ON LUMINANCE AND CHROMINANCE USING BINARY PLANE TECHNIQUE(BPT)[ ]


Image coding is the key and most prevalent component in multimedia communication and storage systems. In this paper image compression using binary wavelet transforms [1] and binary plane technique [2, 3] is proposed. This method is compared against the standard JPEG compression. Experimental results show improvement in compression ratio and PSNR for the reconstructed image.

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Utility of Arylmethylenemalononitriles In Heterocyclic Synthesis : New Synthetic Procedures to Synthesize 4H-pyrano[3,2-c] quinoline, Pyrazolo[4,3-b] pyridine, 4H -Benzo [b]pyan , Pyridine and [1,3,4]Thiadiazolo[3,2-a] pyridin-2-yl)benzamide Derivatives[ ]


4H-pyrano[3,2-c]quinolines 7a,b were prepared via reacting arylmethylenemalononitrile 1a with 3-acetyl-4-hydroxyquinoline 2 or 4-hydroxyquinoline 3.Pyrazolo[4,3-b]pyridines 11a-f were obtained by reacting 1a-f with 4-nitrosoantipyrine 8.Reaction of 1g with dimedone 12 and the hydrazone 15 resulted in the formation of 4H-benzo[b]pyran 14 and pyridine 19 respectively. Compound 1 reacted with 1,3,4-thiadiazole 20 to afford [1,3,4]thiadiazolo[3,2-a]pyridin-2-yl) benzamides23.

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