ARPN Journal of Engineering and Applied Sciences              ISSN 1819-6608 (Online)
 

 
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ARPN Journal of Engineering and Applied Sciences                             June 2017  |  Vol. 12  No. 11
   
Title: Gaussian process approach for visually impaired people to identify obstacles based on Euclidean distance measure
Author (s): M. Karthikeyan, Joseph Henry and K. Rajan
Abstract:

This paper introduces a new portable camera-based method for helping blind people to recognize indoor objects. Unlike state-of-the-art techniques, which typically perform the recognition task by limiting it to a single predefined class of objects, we propose here a completely different alternative scheme, defined as coarse description. It aims at expanding the recognition task to multiple objects and, at the same time, keeping the processing time under control by sacrificing some information details. The benefit is to increment the awareness and the perception of a blind person to his direct contextual environment. The coarse description issue is addressed via two image multilabeling strategies which differ in the way image similarity is computed. The first one makes use of the Euclidean distance measure, while the second one relies on a semantic similarity measure modeled by means of Gaussian process estimation. To achieve fast computation capability, both strategies rely on a compact image representation based on compressive sensing. The proposed methodology was assessed on two indoor datasets representing different indoor environments. Encouraging results were achieved in terms of both accuracy and processing time.

   

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Title: Study of pollutant load assimilative capacity and quality of heavy metal contamination (Pb, Cd, Hg, Cu and Zn) in sediment and fish in Sunter River
Author (s): Nunik Nurwijayanti, Etty Riani and Budi Kurniawan
Abstract:

Sunter River is one of 13 rivers in DKI Jakarta. This river has a main flow along of the river about 37km in lenght. Its head water is located in East Jakarta meeting with Cipinang River and empties into the Jakarta Bay, which serves as a water flow and can not be separated from human activities. Fishes on this river are still used as food source. Nowadays, conditions of the water quality of Sunter river was degraded caused by various human activities occurred not only in the catchment area but also along the river. This study aims to analyze the Sunter River water quality, develop the pollutant load assimilative capacity (DTBP), and reveal the level of heavy metals contamination (Pb, Cd, Hg, Cu and Zn) in sediments and fish. Determination of the status of water quality was conducted by using the STORET method, the calculation of DTBP by using Mass Balance method, the determination of contamination level of heavy metals in sediment by comparing with the quality standard of ANZECC / ARMCANZ and CCME while the level of heavy metals contamination in fish was done by comparing with the quality standard, such as ISO, BPOM, WHO and the EU. This study also analyzes the determination of bioconcentration factor (BCF) in fish. The results of this study indicate that the quality status of Sunter River generally has been severely polluted both by comparing to the regulation No. 82/2001 and the .Governour Decree of Jakarta No. 582/1995. Meanwhile, DTBP for heavy metals in Sunter River, are i.e. 0,07-0,5mg /l for Pb, i.e. 0,009-0,17mg /l for Cd, ie 0,001-0,002mg /l for Hg, ie 0,02-0,1mg /l for Cu, and 0,06-0,5mg /l for Zn. Analysis of Pb, Cd, Hg, Cu and Zn in sediment results in the SQG-Q values of 0.87 to 1.78 indicating that the sediment surface in Sunter River are categorized as moderate impact to highly impacted potential for observing adverse biological effects to living things around it. The level of heavy metals contamination of Pb, Cd and Cu in Clarias sp, Anabas testudineus and Channa striata has exceeded the quality standards established nationally and internationally. The BCF values for Hg were lower cumulative, Zn metals were generally cumulative, while Pb, Cd and Cu moderate cumulative to highly accumulative for all species of fish.

   

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Title: Firefly Optimization based DG placement for improving voltage profile of distribution networks
Author (s): Abhiraj T. K., Bos Mathew Jos and Aravindhababu P.
Abstract:

This paper presents a Firefly Optimization (FFO) based solution methodology for optimally placing DG units with a view of improving the voltage profile. FFO, inspired by social flashing behavior of fireflies, is one of the evolutionary computing models for solving multimodal optimization problems. The DG placement problem is formulated as an optimization problem and the FFO based solution methodology is tailored to optimize the node locations and DG ratings with a view to obtain the global best solution. The developed methodology is tested on a 33 node distribution networks and the results are presented with a view of exhibiting the superiority of the developed algorithm.

   

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Title: Power Factor Correction and THD minimization using Interleaved Boost Converter in continuous conduction mode
Author (s): Niranjani G. and Subashini N.
Abstract:

A general feature of all DC power supplies and nonlinear loads such as SMPS and computer systems connected to the AC mains is the presence of a diode rectifier terminated on a DC link capacitor. During this conversion, the supply current is pulsating in nature. This leads to the reduction in power factor and distortion in supply current. This necessitates the use of Power Factor Correction circuits for power electronic converters. In this work, high power factor and low harmonic distortion is achieved with the help of Interleaved Boost Converter. The Interleaved Boost Converter is implemented using both analog and digital proportional integral controller. Analog controller uses average current mode control technique with two control loops, namely a high bandwidth inner current control loop to have sinusoidal wave shape for input current and a low bandwidth outer voltage control loop to obtain a regulated output voltage. Digital controller uses Digital Pulse Width Modulation technique for the control system design. Mathematical modelling of Interleaved Boost Converter and stability analysis of the converter is carried out. The proposed Analog and Digital controller helps to obtain a regulated output voltage against disturbances in load. The simulation schematic covering the power and control circuit has been developed using MATLAB/Simulink software and the corresponding results are obtained. It is observed from the results that the THD of input current is reduced effectively and power factor is also improved.

   

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Title: Emissions study on copper oxide catalytic converter fitted diesel engine
Author (s): S. P. Venkatesan, B. Venusai, G. Sanjeeth, K. Saikarthik and A. Sivakrishna Reddy
Abstract:

The toxic gases emitted from diesel engines are more than petrol engines. Predicting the use of diesel engines, even more in future, this system is developed and can be used to minimize the harmful gases. Toxic gases include NOX, CO, HC and Smoke which are harmful to the atmosphere as well as to the human beings. The main aim of this work is to fabricate system, where the level of intensity of toxic gases is controlled through chemical reaction to more agreeable level. This system acts itself as an exhaust system; hence there is no needs to fit separate the silencer. The whole assembly is fitted in the exhaust pipe from engine. In this work, catalytic converter with copper oxide as a catalyst, by replacing noble catalysts such as platinum, palladium and rhodium is fabricated and fitted in the engine exhaust. With and without catalytic converter, the experimentations are carried out at different loads such as 0%, 25%, 50%, 75%, and 100% of maximum rated load. From the experimental results it is found that the maximum reduction is 32%, 61% and 21% for HC, NOx and CO respectively at 100% of maximum rated load when compared to that of without catalytic converter. This catalytic converter system is cash effective and more economical than the existing catalytic converter.

   

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Title: Development of an automobile robot system model based on soft computing in an unsteady environment
Author (s): Dmitry Akimov, Petr Krug, Andrey Ostroukh, Ekaterina Matiukhina and Valery Ivchenko
Abstract:

This publication is dedicated to development of a simulation model of controller for an automobile robot as part of a convoy, based on soft computing. During the work a reference adaptive control model was developed, the rules of constructing the fuzzy rule base were described, an optimizer of the number of features of fuzzy linguistic variables based on soft computing was proposed. The application of fuzzy model rule base allows controlling the assigned parameters of an automobile robot under uncertainty and rapidly changing external environment (loss of the front automobile robot, automobile robot system failure, road obstacles). A system of automobile robot modelling was conducted, the efficiency of the fuzzy rule base using genetic algorithms to control the direction and distance was shown.

   

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Title: The impact of the operation planning of power plants for environmental emissions in South Sulawesi
Author (s): Ansar Suyuti, Ikhlas Kitta and Yusri Syam Akil
Abstract:

Plan provision of power generation by the Indonesian government will be dominated by power plants fuelled power plant coal type, where the process of electricity production at the plant are coal combustion process that produces electrical energy and also the ash and smoke. Ash and smoke is a potential environmental pollution. Therefore, this study aimed to get a prediction of the amount of the value of emissions due to the operation of coal power plant in South Sulawesi.

   

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Title: Finite element investigation of dome-like structures
Author (s): Moayyad Al-Nasra and Mohammad Daoud
Abstract:

Domes have been used extensively in long span public structures. The dome structures reflect power and project sense of community. Building domes require experience, time and great effort. Dome like structures can be easily built at relatively lower cost. Pyramid and conical shape roofs are some examples of the dome like structures considered in this study. The pyramids are of square base or rectangular base, while the conical shape roofs are of circular base. Domes are very efficient in supporting loads, taking advantage of the strength of the building material in compression. Flat slabs can shift its behavior to dome like behavior by increasing the central rise. This process converts the two dimensional structural element into three dimensional structural element. The slab will shift its behavior from plate element to shell element, depending on the slab thickness and the value of the central rise. The increase in the central rise up to certain values, converts the flexural stresses into compressive stresses. Most of the building materials are stronger in compression compared to tension or flexure, which makes the domes and the dome like structures efficient structures. Square and circular slabs are used in this study, where the central rise is increased gradually to study the effect of the central rise on the central deflection and the maximum stress. Finite element model is developed to study the effect of the slab thickness on the maximum Von Mises stress at a given value of the central rise. The slabs are subjected to uniformly distributed dead loads and live loads.

   

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Title: Study and optimization of a contra-rotating propeller hub for convertiplanes: VTO and hovering
Author (s): Luca Piancastelli, L. Fiumana and Stefano Cassani
Abstract:

Contra-rotating propeller seems to be a convenient solution for the tilt-rotor convertiplanes of the V22/BA609 type. With this propeller arrangement the rotor diameter is significantly reduced. In the case of an aerial vehicle similar to the V22 the rotor diameter can be reduced from 11.6m down to 7m. In this case the emergency horizontal landing is possible by giving a small amount of dihedral to the wings (8 DEG). This is easy to implement due to the absence, in the contra-propeller version, of the interconnecting transmissions between the two rotors at the wingtips. The V-22/BA609 configuration has a high roll polar moment of inertia with roll control implemented through differential rotor thrust. VRS is then particularly critical. The contra rotating propellers are less subject to the roughness zone of the VRS as demonstrated in wind tunnel tests. Furthermore, the airfoil chosen (NACA 0006) is particularly suited to have a smooth transition from the propeller working state to the windmill brake state. The stability of the contra rotating propellers and the possibility of the two hubs to rotate at different speed in windmill brake state, make it easier to enter into a stable autorotation state. The autogyro (autorotation) and the airplane mode landing are fundamental requirements for the certification of V22/BA609 as civilian transport. To make the certification easier it is possible to identify three flying modes for the aerial vehicle: VTOL with the hubs tilted vertically, STOL with the hubs at an intermediate angle and aircraft (horizontal hubs) for cruise. The transition can be restricted to most favorable conditions. The turbo shafts may have two working conditions: in the cruise one the maximum pressure (and maximum efficiency) of the reference Brayton cycle is necessary. This pressure is achieved with the contribution of the air intake. In this mode the propeller tip speed can be near 0.5M. The lower disk diameter of the contra-rotating propeller guarantees better propulsion efficiency. The VSTOL mode is with maximum power, with lower maximum pressure in the turbo shaft and with higher propeller tip speed (0.91M). The hub can be simplified with the Advancing Blade Concept (ABC) that requires only the blade feathering DOF. The upper and lower rotors require about 1 DEG of difference in AOA (Angle Of Attack) in most conditions. The gyroscopic effects are neutralized and the force necessary to tilt the rotors is much lower than the single rotor solution. This assures also better handling in most flying conditions. Finally, the two-contra-rotating-rotors-tilting mechanism is not more complicated than the single rotor one.

   

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Title: Design and implementation of a prototype to track the bus route of the Antonio Narino University-campus Villavicencio
Author (s): Diego F. Sendoya-Losada and Eddyer Samir Triana
Abstract:

This project focuses on the design and implementation of a prototype to track the bus route of the Antonio Narino University - campus Villavicencio. The prototype was developed from a Web application for tracking and locating the geo-referenced position of system actors (drivers and members of the educational community); and a mobile application, which allows users to know vehicle location data and an estimate of the actual travel time. Applying and evaluating the developed prototype, it was possible to establish that it is functional. The service provided to the users is efficient and generates a great benefit to the entire university community. In addition, it encourages the use of the transportation system because it is easier to access the service, without having to wait a long time in the indicated points and avoiding inconveniences such as the loss of travel and additional costs to go to the University.

   

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Title: Architectural models for fault tolerance within clouds at infrastructure level
Author (s): J. K. R. Sastry, K. Sai Abhigna, P. Praful Kumar and D. B. K. Kamesh
Abstract:

Cloud computing technologies are being used aggressively these days to enable use of shared resources. However the confidentiality and availability of the data stored on the cloud is still a serious problem. In a cloud, several faults do occur which adversely hamper the continuous availability of service to the end customer. Faults could be hardware, software or network related. Infrastructure installed on the clouds does get affected due to all kinds of faults. The infrastructure supported on the clouds must be made available to the clients even during the occurrence of the faults to provide continuous service. In this paper architectural models have been proposed using which the infrastructure related services are made available to the clients even during the occurrence of the faults making the entire process of cloud computing reliable and effective.

   

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Title: Numerical and volumetric frequency of sprinkler drop-size from water distribution radial curve: Mathematical modelling
Author (s): Friso D. and Bortolini L.

Abstract:

An analytical approach to correlate the travel distance of the drops from the irrigation sprinkler with the drops water volume was studied. Such approach was used along with a simplified ballistic model, able to define the trajectories of the drops produced by the nozzle of the sprinklers, to develop a rapid and simple method to obtain sprinkler drop-size spectrum from the water distribution radial curves.

   

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Title: Blood Lead and Cadmium level among fuel station workers in Semarang city
Author (s): Nur Kusuma Dewi and Ari Yuniastuti
Abstract:

Motor vehicles are the largest source of heavy metal pollution in the neighborhood. Lead (Pb) and cadmium (Cd) are toxic heavy metal and dangerous that can poison the environment and have an impact on the entire system in inside the body. This study aims to determine the level of lead and cadmium in blood of fuel station workers in Semarang city. This study used analytic cross sectional survey design which was conducted on may 2015. In total there are 52 subjects in this study. The blood samples were collected by the author. The analysis was conducted at Food and Nutrition Centre, Gadjah Mada University Yogyakarta. Blood lead and cadmium level was measured using Lead and Cadmium by Blood Test Kits. The average blood lead and cadmium levels was 14, 23± 2, 54 µg/dL and 3, 22±5,24µg/dL, respectively. The conclusion that the blood lead levels among the fuel station workers in Semarang City was 92,3% still within the normal limit. The blood cadmium levels among the fuel station workers in Semarang City was 95,1% still within the normal limit.

   

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Title: A model of continuous linear electron accelerator
Author (s): Vladimir Kuz'mich Shilov, Aleksandr Nikolaevich Filatov and Aleksandr Evgen'evich Novozhilov
Abstract:

The scale of the human economic activity and the specificity of advanced technological processes used in industry, especially in the sectors such as chemistry and metallurgy, necessitate special measures to protect the environment. The environmental protection, the careful use and reproduction of its diverse resources, improvement of the human environment is a major part of the humanity survival program in the global world. The problem of protection of the environment and rational use of natural resources becomes more and more acute and urgent every year. Currently, linear electron accelerators operating in pulsed mode are used for practical purposes. Such accelerators have a small beam power and cannot be effectively used in industry and for the environmental protection. To overcome this drawback, one can create a continuous linear electron accelerator based on a biperiodic decelerating structure, which operates in the standing wave mode. The design of such an accelerator is simpler as compared with the resonant pulse accelerator, because the need is eliminated for a modulator of the HF energy source. The article presents the results of the conducted research and the calculations of a model of linear electron accelerator, which demonstrate the possibility of creating such a continuous accelerator for using in industry and for environmental protection.

   

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Title: Kinematics of two simple planetary gears
Author (s): V. I. Nekrasov, O. O. Gorshkova, R. A. Ziganshin and A. A. Akchurina
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Multi-speed planetary gear transmissions (PGTs) have a limited application. Two and three-speed planetary gear transmissions were used in GGT (hydro mechanical transmission); in recent years the number of gears in GGT has been growing. With the increase of the number of gear, the complexity of the PGT is growing significantly. The PGT with two degrees of freedom for 8 gears requires 24 gearwheels and for 16 gears it requires 48 gearwheels. This article describes the structural methods of realization of the kinematic capacities of two simple three-link planetary gears connected in series.

   

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Title: Geophysical prospecting of groundwater in laaouamra, Morocco, using VES method and GIS
Author (s): A. El Alami, L. Ouadif, K. Baba, A. Akhssas, L. Bahi and M. D. Hasnaoui
Abstract:

The bas Loukkos basin is characterized at the same time by impervious overburden materials and semi-arid climate that are two factors limiting the renewal of the groundwater resources. In this space, we found the R’Mel aquifer formation, which are one of the main water supplies in the region. It corresponding geological facies are characterized by spacio-temporal change. In this work, a Special focus was given to the aquifer systems in the R’Mel coastal area, including dune systems formed in the Quaternary epochs. By combining drilling lithological data, Geographic Information System tools, and electrical investigations results, It was possible to determine the lateral extension of the Plio-Quaternary resistant sandstone which can constitute a potential reservoir of water supply one the one hand, on the other hand the spatial evolution of the coastal dune systems.

   

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Title: Gray code (n, k, p) based pixel substitution and Affine transform based Gray code bit plane permutation technique for secure image encryption
Author (s): Sudeept Singh Yadav, Yashpal Singh and S. K. Sriwas
Abstract:

Image encryption techniques are used to prevent image from unauthorized access and it play a very important role to provide confidentiality or privacy. To make image encryption technique more robust for various applications in imaging systems, we combined pixel permutation and pixel substitution techniques along with the concept of (n, k, p) Gray code .The algorithm is based on (n, k, p) gray code bit-plane decomposition and Affine transform based each bit plane pixel permutation. (n, k, p) Gray code transforms based bit plane shuffling and pixel scrambling provides robustness in image encryption. The experimental results have shown that the presented new encryption algorithm provides excellent performance in image encryption.

   

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Title: Model of genetic fuzzy artmap classifier (GFAM) for gastric cancer data classification
Author (s): Thara Lakshmipathy and Gunasundari Ranganathan
Abstract:

Data mining is the evergreen research area in the field of computer science. Its artefact applies in the area of healthcare, decision support and expert systems. Soft computing plays a significant role in design and development of predictive and descriptive data mining applications. This research work presents a fuzzy adaptive resonance theory classifier with the support of genetic algorithm for gastric cancer data classification. The metrics such as accuracy, hit rate and elapsed run time are chosen for performance evaluation. From the results it is evident that the GFAM attains better performance.

   

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Title: Experimental and numerical investigation the effect of mass flow rate on the heat transfer flat plate solar collector with using nano fluid
Author (s): Zahraa basim Abdel-Mohsen and Abbas Sahi Shareef
Abstract:

A solar collector is the major component of a solar water heating system. The heat energy from the solar radiation was utilized in the flat-plate solar collector can be enhanced by using nanofluid. This work investigates the experimentally and numerically the effect (ZnO-water) nanofluid on heat transfer flat plate solar collector. The volume fraction was used (0.5) % for three flow rates (1, 2 and 3) lpmand the particle size was 20 nm. The experiments are conducted in Karbala, Iraq with the latitude of 32.6 o. The numerical is applied by ANSYS 15software.The result shows that the maximum the outlet-inlet temperature difference was obtained at (0.5 vol. %) nanofluid for (ZnO-water) at the peak value curve (150C) at a flow rate (1 lpm while in case of water the maximum the outlet-inlet temperature difference was (10.2 oC). Also, there was a good convention between the experimental and CFD results for outlet temperatures where the maximum error was (8.4%).

   

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Title: Optimization of main parameters of gearboxes with three gear trains
Author (s): Vladimir Ivanovich Nekrasov, Nikolai Stepanovich Zakharov, Ruslan Albertovich Ziganshin, Oksana Olegovna Gorshkova and Georgiy Nikolaevich Shpitko
Abstract:

Efficiency of GB design can be conveniently estimated by three relative parameters on the basis of (n) – the number of forward gears: 1) Coefficient of gear usage intensity equaling to ratio of the number of forward gears to the number of involved gearwheels = n/g; 2) Coefficient of reduction equaling to ratio of gear numbers to total reduction Kb = n/; is the total reduction of GB, it is determined using ray path plot and equals to the sum of ray projections of gear couples onto the axis of gear ratios on logarithmic scale: the sum of steps q; 3) Coefficient of layout efficiency equals to the sum of the two aforementioned coefficients Kc = Ka + Kb. This article discusses optimization of main parameters of GB (gearboxes) with three trains of forward gears in the case of conventional layout and in the case of loose placement of gears on shafts.

   

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Title: Shock waves in a channel with a central body
Author (s): A. N. Ryabinin
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Positions of shock waves in the 2D channel with a central body are studied numerically. Solutions of the Euler equations and Reynolds-averaged Navier–Stokes equations are obtained with finite-volume solvers. Numerical simulations reveal a considerable hysteresis in the shock wave position versus the supersonic Mach number given at the inlet for in viscid gas and for viscous gas. In the certain range of inlet Mach number, there are asymmetrical solutions of the equations. Small change in the geometry of the channel leads to shift of the hysteresis range.

   

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Title: Multilevel inverter topologies for photovoltaic power system: A review
Author (s): Usman Bashir Tayab
Abstract:

This paper presents a comprehensive review on three basic types of multilevel inverters i.e., diode-clamped, flying-capacitor, and cascaded H-bridge multilevel inverter and their variation for photovoltaic power system. The electrical power generated form photovoltaic power system is in DC form. Hence, it is necessary to be controlled and converted to useful form. Inverter is a power electronic device which is used to convert the DC power into AC form at desired output voltage and frequency. Multilevel inverters nowadays become interesting area in field of electric power system because it has the capability to produce staircase AC output voltage waveform without using a bulky passive filter. The state of art of multilevel inverter technology for photovoltaic power system has been presented in this paper, which will be very helpful to the researchers to trace the drawbacks in this field of research and thereby will provide information to resolve the existing issues in the near future.

   

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Title: Comparative analysis of different diamond search algorithms for Block matching in Motion Estimation
Author (s): T. Bernatin and G. Sundari
Abstract:

Motion estimation is one of the intensive operations used to compress the video signal in an effective manner. It gives the value of motion vector which comes from the displacement of current frame with respect to its reference frame. Diamond search is one of the most used techniques for Block matching in Motion Estimation and few types which are commonly used are diamond search algorithm, cross diamond search algorithm, modified cross hexagon diamond search algorithm, new cross diamond search algorithm. This paper studies the number of search points used by these algorithms and its effectiveness in terms of time, speed and complexity.

   

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Title: Sensitivity analysis of traffic accidents causes in Sultanate of Oman
Author (s): Ahmad M. Abu Abdo
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Traffic accidents numbers and fatalities and injuries resulting from these accidents are increasing in an alarming rate, especially in the Sultanate of Oman. This paper focuses on the verification of the factors affecting numbers of traffic accidents and fatalities and injuries resulting from traffic accidents in the Sultanate of Oman. To achieve the goal of this study, sensitivity analyses via Tornado Plots and Extreme Tail Analysis were deployed to identify main affecting factors, which would assist decision makers to focus their efforts on the reducing traffic accidents. Results have shown that Failure to Follow Traffic Rules, Speeding, and Reckless Driving were ranked the highest contribution factors to traffic accidents and fatalities and injuries from these accidents, while Weather Condition, Drunk Driving, Fatigue, and Sudden Stopping had very low effect on traffic accidents. Finally, recommendations were proposed to Omani decision makers for implementation in current and/or future policies.

   

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Title: On selection of user interface dynamically for displaying data mined results
Author (s): J. K. R. Sastry, M. Jyothsna Sai Sree, T. Mani Dedeepya and D. B. K. Kamesh
Abstract:

Many types of mining such as classification mining are being used to discover knowledge hidden in the data. Several methods exist such as mining based on decision tree for carrying a particular type of mining. Each type and method of mining produces different types of mined results when applied on a different database. The mined results also greatly varies when parameters which are used for carrying mining varies. One the most challenging issue is to display the mined results such that the user quite understands the results and be able to take decisions that help their business. Choice of a proper interface for displaying the results is most critical for the user to understand and use the mined results for their own decision making. In this paper a method has been presented that helps in finding most appropriate User interface dynamically at runtime that best suits the actual mined result and use the same for displaying the mined results.

   

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Title: The optical-electronic device for quality control of engine oil
Author (s): V. V. Semenov, Yu. G. Astsaturov, Yu. B. Hanzhonkov, D. Yu. Denisenko, M. E. Denisenko, Yu. I. Ivanov, V. V. Ignatyev, V. I. Finaev and O. B. Spiridonov
Abstract:

The mode and the device for the analysis of engine oil impurity of the internal combustion engine disperse particles are given in this paper. Also theoretical justification of development of the device realizing the offered opto-electronic method of engine oils analysis is given. Optical and ultrasonic methods of the analysis of engine oils impurity in the device for increase in informational content of data are used.

   

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Title: Influence of in-vehicle time of private cars to public transports in the choice of river transport modes
Author (s): Iphan F. Radam, Bambang Haryadi and Bagus H. Setiadji
Abstract:

This study aims to look at the extent to which the differences in-vehicle time between private cars and public transports in influencing the probability of choice of public transport on rivers. Emphasizing the river's public transport is due to the policy of the local government to revive this form of public transport as the city transportation’s icon. One of the habits to increase the choice of one mode is to improve its services and appeal, when one of the causes why trip makers are more likely to use private cars since the time of the vehicle took is faster than public transports. An analysis using the approach of multinomial logit models that competed with other modes of public transports is a river-based public transports, land public transports, and private cars. From the analysis’ results obtained, it can be concluded that river-based public transports will be able to be wanted and return to compete with private cars, not only by improving the image and services but also one other factor that must be considered which is, in-vehicle time (IVT) from private cars toward public transportation. If the condition of the river public transports has been improved and enhanced, meaning their image and the service, then with the fastest travel time and with the same fare, the probability of choice will be increased by 0.20 on the existing condition (the IVT of private cars is faster). When the IVT of private cars is the same, then the probability of choice will be increased to 0.38, and increase again to 0.43 when the IVT of private cars is longer than what public transports has. Of the three conditions of the IVT of private cars, river-based public transport showed a balance of choice with a private cars when the IVT of private cars is the same to public transports.

   

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Title: A multi-objective optimization methodology applied to the low-power CMOS operational amplifiers
Author (s): E. Srinivas, N. Balaji and L. Padma sree
Abstract:

This paper presents a novel design methodology for optimizing the performance of CMOS op-amp topologies by using Multi-Objective optimization Methodology. This methodology is used to find the optimal transistor dimensions in order to acquire operational amplifier performances for analog and mixed signal circuit applications. The goal is to automatically determine the device size in order to meet the given performance specifications while minimizing the design time, Area, power and cost function. This strongly suggests that the approach is capable of determining the globally optimal solutions to the problem. Accuracy of performance prediction in the sizing program (implemented in MATLAB) is maintained. These operational amplifiers were simulated by using cadence virtuoso spectre circuit simulator in 0.18µm CMOS technology with power supply ±1.8v. In this paper six performances are considered i.e.., Open loop Gain (Av), Unity gain bandwidth (UGB), Phase Margin (PM), Slew rate (SR), Area A) and Power consumption (Pc). Finally a good agreement is observed between the program optimization and electric simulation.

   

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Title: SBS-SDN based solution for preventing DDoS attack in cloud computing environment
Author (s): T. V. Sindia and Julia Punitha Malar Dhas
Abstract:

Cloud computing is an emerging technology that provides several services to the cloud users. However, the adversaries intend to make certain services unavailable by triggering DDoS attacks. Hence, a system to prevent or detect DDoS attack is the need of the hour. This paper proposes a SDN based solution to prevent DDoS attack in the cloud computing environment. In order to achieve the goal, the proposed approach is decomposed into knowledge gaining and operational phase. The knowledge gaining phase intends to extract features from the samples and the entropy of the destination address is computed. The variance of the entropy is computed and the feature representatives are formed. The median of the feature representatives is calculated and is fixed as threshold. In the operational phase, the system can classify between the normal and the DDoS attack scenarios by computing Euclidean distance between the test sample feature representative and the knowledge base. The performance of the proposed approach is found to be satisfactory in terms of detection rate and detection time. Additionally, the proposed approach shows the least FNR and FPR, when compared to the existing techniques.

   

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Title: A CRT based robust image watermarking using Discrete T-Chebyshef Transform
Author (s): J. L. Divya Shivani and Ranjan Senapathi
Abstract:

This paper presents a Chinese Remainder Theorem (CRT) based digital watermarking technique in Discrete T-Chebyshef Transform (DTT) domain which is robust to several common attacks. The proposed technique is compared with the recently proposed CRT based Discrete Cosine Transform (DCT) domain technique. Extensive simulation experiments show the better robustness to the common image manipulations such as brightening, sharpening, cropping, noise and compression. At the same time, the proposed technique successfully makes the watermark perceptually invisible. Better Tamper Assessment Function (TAF) value of 30-40% is achieved in comparison to 30-40% in DCT and 10-40% on Singular Value Decomposition (SVD) techniques. Similar to DCT domain watermarking, it is possible to maintain the imperceptibility and low TAF for various values by doubling the capacity of the watermark.

   

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Title: GA-Based optimal positioning of mobile sink in Wireless sensor network
Author (s): K. Suganthi and B. Vinayagasundaram
Abstract:

A primary challenge faced by Wireless sensor networks is to transmit large chunks of data by sustaining the limited energy available. We propose to reduce the energy consumption of data-intensive WSNs using cheap mobile relays. Our proposal differs from previous work in that we integrate the energy consumption due to both mobility and wireless transmissions into an optimization framework. This framework consists of three main aspects. The first procedure computes an optimal routing tree with an assumption that no nodes can move. The second procedure involves adding mobile nodes using genetic algorithm (GA). The third procedure improves the network by optimizing the routing tree. This algorithm links up to an optimal position for each node, given that the topology of routing tree does not change. Our simulation results prove that our proposal significantly surpasses the existing solutions.

   

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Title: No-Reference image quality assessment for contrast-distorted images using statistical features in Curvelet domain
Author (s): Ismail T. Ahmed and Chen Soong Der
Abstract:

Most No-Reference Image Quality Assessment (NR-IQA) metrics are designed for the quality assessment of images distorted by compression, noise and blurring. Few NR-IQA metrics exist for Contrast-Distorted Images (CDI).Reduced-reference Image Quality Metric for Contrast-changed images (RIQMC) and NR-IQA for Contrast-Distorted Images (NR-IQACDI) are the state-of-the-art IQA algorithms for CDI. Room for improvement exists, especially for the assessment results using the image database called TID2013. The current NR-IQACDI uses features in spatial domain. This paper proposes the use of the same statistical features but in Curvelet domain, which is powerful in capturing the multiscale and multidirectional information of an image. Experiments are conducted to assess the effect of using statistical features in Curvelet domain. The experiment results are based on K-fold cross validation with K range from (2 to 10).The statistical tests indicate that the performance using selected statistical features in the Curvelet domain are better than that of the NRIQACDI. The use of other statistical features and selection methods should be further investigated to increase the quality of prediction performance.

   

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Title: Optimization of operating parameters by response surface methodology for malachite green dye removal using biochar prepared from eggshell
Author (s): Mardawani Mohamad, Tan Chia Wei, Rosmawani Mohammad and Lim Jun Wei
Abstract:

This study focuses on the adsorption of malachite green (MG) dye using eggshell biochar as adsorbent. Agricultural waste of eggshell turned into low cost and eco-friendly biochar adsorbent was studied. Central Composite Design (CCD) was successfully employed for the experimental design and results analysis. The effect of initial concentration (30-70 mg/L), adsorbent dosage (0.5-2.0 g) and contact time (5-20 min) on the percentage of malachite green (MG) dye removal was investigated and optimized using response surface methodology (RSM). From the analysis of variance (ANOVA), the contribution of quadratic model is significant for the response in this study. The results showed that the response of dye removal was significantly affected by the synergistic effect of the linear term of initial concentration, adsorbent dosage and contact time and the quadratic term of initial concentration. The optimum removal efficiency of 92.39% was obtained with the optimal operating conditions of initial concentration of 70 mg/L, adsorbent dosage of 1.99g and contact time of 16.25 minutes, and desirability of 0.998. Good agreement was found between both the experimental results and predicted values and the suitability of the model was confirmed to predict the adsorption process. Eggshell biochar was found to be effective in removing MG dye from aqueous solution.

   

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Title: The influence of high frequency system of standing wave electron linear accelerator on beam output properties
Author (s): Vladimir Kuz'mich Shilov, Aleksandr Nikolaevich Filatov and Aleksandr Evgen'evich Novozhilov
Abstract:

This article discusses high-frequency systems of standing wave linear electron accelerator. One of the drawbacks of standing wave accelerators is extended transient process in high-Q resonator sections, which leads to insufficient beam energy at initial stage of high frequency pulse and occurrence of medium energy spread of clusters. This spread can be eliminated by power supply of accelerator sections and delay of injection pulse with regard to the pulse of high frequency field. This enables fine tuning of high-frequency energy supplied to accelerating resonator sections upon simultaneous variation of time constant of transient process of electric fields setup in sections. In these systems complete decoupling of generator from high-Q accelerating sections is achieved, the influence of current load by accelerating sections decreases, and beam output properties are improved.

   

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Title: Design of M-PETFF using low power clock distribution element
Author (s): A. Bakiya, M. Nithyavelam and C. Malathy
Abstract:

An improved positive edge triggered flip flop (M-PETFF) is proposed for Low power application with simpler structure, clock load and also compared with different flip flop designs with same size of transistor including of both input and output. The proposed work implemented in CMOS-90nm technology, gives 32% of power optimization and high performance of PDP.

   

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Title: Measuring of background modeling and subtraction algorithms on moving object detection in video sequences in Chiangmai
Author (s): Suepphong Chernbumroong Kitti Puritat and Pradorn Sureephong
Abstract:

The research reported drivers in Thailand spent time on car an average of 61 hours stuck in traffic last year, followed by motorists in Colombia and Indonesia with an average 47 hours and the second in the world (behind Libya) for number of road accident deaths. Thus, manual traffic count is time consuming in order to identify which routes are used most, and to either improve or solve the problem that road or provide an alternative if there is an excessive amount of traffic with vehicle counting systems. For the first step of analysis the road accident in Thailand, real time segmentation algorithms of moving regions in image sequences is an important step in counting systems including automated video surveillance. Background subtraction of video sequences is mainly regards as a solved problem. In this paper not only helps better understand to which type of videos each method suits best for video surveillance of Thailand but also compared of basic background subtraction methods.

   

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Title: Hybrid approach for sensor deployment in WSN
Author (s): Nikitha Kukunuru
Abstract:

Wireless Sensor Networks (WSNs) consists of arbitrarily placed tiny sensors which monitor the target field. Every location of the target field is said to be with at least one sensor. The sensors must be deployed in such a way that every sensor is efficiently used to monitor the target field with less coverage loss. Glowworm Swarm Optimization (GSO) technique is swarm intelligence based technique, which depends on the behavior of glow worms (also called as lightning bugs or fireflies). In sensor node deployment optimization, GSO performs very well in terms of coverage and is used to achieve greater coverage with less sensor nodes in the network. The solutions obtained by hybrid approach which is based on GSO and Bioluminescent Swarm Optimization (BSO) are better than the best solutions obtained by an efficient Glow worm Swarm optimizer alone. This approach is a free from differential equations and is a very efficient evolutionary algorithm. Non-Stochastic adaptive step-size movement strategy is implemented which is derived from GSO and BSO. On the basis of considering dynamic deployment in WSNs, simulation results show that the hybrid approach yields greater coverage than the existing GSO technique.

   

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Title: Optimized secure confirmations using smart card evaluation in multi cloud storage
Author (s): U. Susmitha and D. Rajeswara Rao
Abstract:

Distributed computing contains a collection of storage space web servers, providing a fantasy of endless storage space and obtaining. Security is one of the critical elements of such a process. Saving details at a remote third party’s cloud product is always causing serious concern over details privacy and survivability. Many security techniques protect details reliability, but they limit the performance of the details owner especially with respect to cancellation because one key centered protection techniques are employed for secure details. So we recommend another cryptosystem that can create resolved approximated details obtaining important factors such that a data consultation occasion requires assigning an offer of infrequent secrets of irrelevant customers as understanding rights for particular agreement of realized material. An amazing element is that one can total numerous agreements of secret important factors from individual secret solidarity and at once make them as reduced as could be allowed simply like their protector individual solidarity, yet at the same time be pushing the force of the considerable number of important factors being gathered that can remarkably invest in a client. The JSON Web Methods (JWM) detail signs up cryptographic computations are used for WEB encryption with preferable key specifications in both JSON web framework and JSON web key presentation. It characterizes a few IANA registries for these identifiers. Every one of these details uses JavaScript Object Notation (JSON) centered details components. This is used to produce similar script picture era for managing effective capacity in distributed computing.

   

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Title: Calculation model and methodology for stiffness evaluation in hydraulics cylinders
Author (s): V. Gomez Rodriguez, Juan Jose Cabello Eras, Noel Varela Izquierdo, Hernan Hernandez Herrera and Alexis Sagastume Gutierrez
Abstract:

In the paper an analysis scheme able to considerate of all the main geometric and load factors that affect the behavior of a hydraulic cylinder in its action as a flexural-compression member. Also, experimental validations of the model are shown too. A methodology to identify the conditions leading to the instability of the cylinder is established.

   

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