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Volume 3 Issue 11 (November 2016)

S.No. Title & Authors Page No View
1

Title : The impacts of direct lightning bolt on the Ngo-Brazzaville line in Congo

Authors : Rodolphe GOMBA, Alphonse OMBOUA

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The importance of line Ngo-Brazzaville (220 kV, 207 km) requires operators to avoid cuts that can increase the risk of instability. We see it is quite rare that a storm that occurs in areas crossed by this line will not cause triggering. We note that lightning discharges constitute the main causes of unscheduled power cuts on the electricity lines of Congo; however, we ignore the peak values of voltage waves that result. In regions with high level keraunic like Congo, reducing insulation failures due to lightning is a concern in the management of overhead lines. This article clarifies the peak values of surges that can be reached on the electricity network, in order to enlighten the operators as for precautions to observe about the insulation coordination of protective equipment related to lightning. For these surge’s calculations of atmospheric origin (case of lightning), we considered the Heidler function for modeling the wave of the lightning current. This methodology led us to specially treat the effects of direct   lightning bolt that constitute the worst case because they generate most destructive shock wave that indirect thunderbolt.

1-6
2

Title : Start-up delay Estimation at Signalized Intersections: Impact of Left-Turn Phasing Sequences

Authors : Mohamed Shawky, Abdulla Al-Ghafli

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This paper aims to investigate the start-up delay at signalized intersections in Abu Dhabi (AD) city, UAE. Impact of external factors that may affect the start-up delay is examined including; left turn phasing sequences (split/lead/lag), movement turning (through/left), intersection location (CBD/non-CBD) and day time (peak/off-peak). A new technique of data collection was applied based on the automate records of license plate of vehicles and a comparison with the traditional video recorded technique was carried out. Data covered 66 approaches of 36 signalized intersections. The analysis showed that overall estimated mean value of the start-up delay is 2.201 sec. with a standard deviation of 1.823 sec. The t-test shows significant statistical difference in start-up delay between observations at through and left movements, at CDB and non-CDB area and at split and lead/lag phasing. However, no significant differences were found between peak and off-peak periods and between split and lead phasing. In general, lead/lag phasing sequences not only improved the overall delay at signalized intersection but also improved the start-up delay.   

7-12
3

Title : Effects of MgO-TiO2 Co-additive Content on Phase Formation, Microstructure and Fracture Toughness in Dental Porcelain Nanocomposites

Authors : R. Waiwong, S. Ananta, A. Pisitanusorn

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This paper has been deleted on Author’s Request. 

13-19
4

Title : Densification, Microstructure and Fracture toughness of Al2O3/TiO2 reinforced dental porcelain composites fabricated using a Two-step sintering technique

Authors : P. Boonruang, P. Banthitkhunanon, S. Ananta, A. Pisitanusorn

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This paper has been deleted on Author’s Request. 

20-26
5

Title : The Role of Soft skills in Empowering Fresh Engineering Graduates in India

Authors : Dr. R. Rajendran, K. Shamsuddin

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Soft Skills are personal attributes that enables one to interact effectively and harmoniously with other people. During campus recruitment process students with high grades fail to get a job due to poor soft skills. NASSCOM-McKinsey report (2005), states that only 25% of technical students and 10-15% of the general graduates in India are employable. In the recent past the awareness regarding soft skill has increased but the student’s attitude and efforts to imbibe these qualities hasn’t. Considering the above facts it is high time that the present generation should change their attitude towards imbibing soft skills in their daily life. The growing population, increasing number of engineering colleges across the country, shrinking number of job opportunities and volatile market conditions will only add further burden to our younger generation. 

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6

Title : Study on geological and structural characterization around Mai Kenetal, Central Tigray in Northern Ethiopia

Authors : Bekele Ayele, R.Gangadharan

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The present research is aims to study geological and structural characterization around Mai Kenetal, central Tigray, in northern Ethiopia. Topographic difference of the Mai Kenetal area helped in identifying the rock units in the north-western and south-eastern parts of the study area. So that metavolcanic, metavolcaniclastic formations are located in the north and northeast sides whereas slate and phyllite are situated in the south, central and eastern side. Also intrusive granite and dikes are recognized in the central part of the study area. The results shows that the basement rocks are prominently NE-SW trending and shows parallel to the regional lineaments of Mai Kenetal is syncline inliers structure. In study area, the dominant structures such as foliation, shear zone, fold, and fractures like fault, joints, and slickenside are appears. Structural data suggests that the study area has been experienced in three phases of deformation and it also indicated presence of hydrothermal alterations like chloritization, epidotization, sericitization. Based on the lithology study and the non-development of foliation or schistosity suggest that the study area is experienced in low grade metamorphic conditions.

30-35
7

Title : Information Attribute Reduction Based on the Rough Set Theory

Authors : YU Bo-wen, Du Chao, Wang Zhi-guo

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The genetic algorithm is used to optimize the algorithm of attribute reduction in data preprocessing, and the rough approximation precision in the rough set theory is utilized to determine the importance of information attribute. From which the decision table is constituted by selecting the attributes which have higher degree of attribute importance, and the attribute core of decision information is obtained by using the identification matrix. The initial population is constructed on the standard of the attribute core , the search area of genetic algorithm is reduced. Finally, the correction operator based on the rough approximation precision is introduced, and the algorithm is made to conduct in the correct solution space, thus the speed of attribute reduction is improved, furthermore, the optimal results of attribute reduction are obtained.

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8

Title : Risk Factors Analysis for Drivers with Multiple Crashes

Authors : Mohamed Shawky, Abdulla Al-Ghafli

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Identifying the drivers who frequently involvement in traffic crashes (i.e. high-risk drivers) is the main concern of all road safety related entities. The factors that belong to the driver’s behavior are considered as leading causes of traffic crashes. Drivers’ behavior can be measure based on their historical records of traffic rules violations and crashes involvements. This paper aims to investigate the characteristics of drivers who are frequently involved in severe crashes and to define the parameters that can be used to recognize the risky drivers. Historical records of about 324,644 drivers during eight years from 2008 to 2015 were analyzed. About 20 types of unsafe traffic violation types are investigated in details. The interrelationships between the at-fault drivers involved in traffic crashes during the study period and their demographic characteristics, historical records of their severe and property damage only (PDO) crashes and historical violations of total types and specific types of violations were explored. Negative Binomial Regression modeling approach is applied to define the associated variables that can be used to predict the driver’s severe crashes involvements. The results show that females, young, local, and less driving experience drivers have higher risk to be involved in future severe crashes. In addition, the following violations can be used as predictors to define drivers with multiple crashes: exceeding speed limit by more than 50 kph, car racing involvement, alcohol use, mobile use, tailgating, entering road suddenly, not using helmet, and overtaking-related violations. The findings can also be used to develop or improve the preventative strategies against high risky drivers.

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9

Title : Static Analysis of Composite Laminated Beam By First Order Shear Deformation Theory

Authors : B.R.Barhate, Dr. U.P. Waghe

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Various displacement-based theories for laminated beams have been developed. Two approaches are usually adopted, one is without considering shear deformation and other is with shear deformation effect in the beam. Static analysis of composite laminated beam is presented in this work. Simply supported composite laminated beams are examined. Different values of aspect ratio of the beams, subjected to bending are considered for the analysis.  Classical beam models, such as Euler–Bernoulli’s and Timoshenko’s, are obtained as particular cases. The longitudinal normal displacement and corresponding normal stress are analysed for the composite laminated beam. Results are validated in terms of accuracy and computational costs with available solution.

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10

Title : Growth and studies of gamma-glycine crystals doped with zinc sulfate

Authors : T.Gladys Vimala, E.Bena Jothy, P.Selvarajan

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Single crystals of undoped and zinc sulphate doped gamma-glycine crystals were grown by slow evaporation solution growth technique using water as the solvent. Undoped gamma-glycine salt was prepared by using alpha-glycine and sodium chloride. 1 mole% of zinc sulfate was added as the dopant to the gamma-glycine to prepare the doped sample. Solubility of the samples was measured using water as the solvent at different temperatures. The grown crystals of undoped and zinc sulfate doped gamma-glycine were harvested after a growth  period of 30 days. The lattice parameters were found by XRD method. The relative SHG efficiency was measured for both the samples by Kurtz-Perry method. Hardness  parameters were determined at different applied loads. Dielectric behavior of the samples was studied by measuring dielectric constant and loss factor at various frequencies and temperatures. LDT studies were carried out for the samples to find the laser damage threshold values. Photoconductivity was measured for the samples at different applied electric fields.

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11

Title : Design of controllers for a Non-linear system using Pole-placement and Linear Quadratic Regulator Technique to solve Servo and Regulatory problem

Authors : Neetha R

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This project mainly discusses about the design of controller for a nonlinear system like rotary inverted pendulum. This system is under actuated and well-suited for verification and practice of ideas emerging in control theory. Nonlinear systems exhibit instability, making the design of controllers for balancing in the stable position, a challenging problem. The dynamic model of the rotary inverted pendulum is identified first and the state space representation of the system is obtained. The controller is designed by using the pole placement technique and Linear Quadratic Regulator technique in MATLAB software package. The regulatory problem and the servo problem of rotary inverted pendulum system is solved with these controllers designed. The different controller design is implemented in simulation and their performances are compared. Simulation results onto a nonlinear system are given to illustrate the effectiveness of the developed strategies. 

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12

Title : Meta Ethical View of Existentialism: A Critique of Kantian Ethics

Authors : Dr. Diwan Taskheer Khan

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Existentialism, a twentieth century popular philosophical and literary movement, takes a distinctive stance towards ethics and value-theory. It clearly states that the possibility of authenticity is a mark of an individual’s freedom. It is through freedom that existentialism approaches questions of value, leading to many of its most recognizable doctrines. But instead of normative ethics they make their arguments on the meta-ethical level which is based on freedom.

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13

Title : CFD Analysis of Enhancement of the Forced Convection Heat Transfer over the Pin Fin with Trapezoidal Fin Micro channel

Authors : B. Siva Srinivas, B. Rama Krishna, D.Apparao

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Steady state forced convection heat transfer from vertical trapezoidal fin array and oblique trapezoidal fin array Simulation was done for both in which amount of heat transfer rate is calculated and compared. Test results indicate that vertical trapezoidal fin orientation array yield the lowest heat transfer rate. However the oblique trapezoidal fin array gave the best performance of heat transfer rate. The proposed work is concerned with the analysis of the improved heat transfer by forced convection on trapezoidal fin array and analysis of the structure of flows in a CFD. The value of heat transfer coefficient obtained for the surface of Nusselt number of the pressure drop of the study, the heat resistance and the pressure drop of the heat to the vertical trapezoidal fin array information at different velocities in different heights is to examine the effect of a heat sink design .thermal resistance, pressure drop, and structure of the Nusselt number are compared with oblique trapezoidal fin array. Parameters such as the geometry of the heat sink, the height and the number of fins and the fin base height is regarded, in particular, the shape of the heat sink. The thermal model with various fin heat sink design of the geometry has been selected and the characteristics of the heat sink thermal fluid flow stream were studied. The pin fin plate and trapezoidal heat sinks of the fin geometry were used with base plate to improve heat dissipation. Some features formed in an infinite variety of geometries resulting in different heat transfer characteristics. The objective of the present work is to find the heat transfer rate and distribution of the airflow on surfaces with different parameters which are considered (height, speed) and all results will be compared with each other and the results have shown considerable increase in amount of heat transfer and Nusselt number in oblique trapezoidal fin array when compared to straight fin array for the same velocity of flow and both the properties have also been increased with increase in velocity.

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14

Title : Exprimental effect of using silica fume and fly ash on mechanical properties of recycled concretes

Authors : Hasan Jalilifar, Fathollah Sajedi, Reza Afshar

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This paper presents the results of a laboratory study on the mechanical performance of recycled concretes prepared with incorporation of two mineral admixtures including silica fume (SF) and fly ash (FA). The recycled aggregates concrete (RAC) was prepared by using 0, 25, 50 and 100% coarse aggregate replacement. The compressive strength, splitting tensile strength (SPT) and ultrasonic pulse velocity (UPV) of concrete mixes were completed. The results showed that the pozzolanic materials cannot have a significant effect on compressive strength loss trend. In contrast, the ultimate compressive strength of recycled concretes strongly effected by pozzolanic materials. The SPT and UPV test results showed that compare with FA, the use of SF reduced the negative effect of high replaced percentage of recycled aggregates.

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15

Title : The Concept of Envirnomental Engineering in The Realm of Heritage Architecture of Tamils in India

Authors : Dr V Pon Panneerselvam

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To provide shelter, security and comfortable living conditions for the occupants; and to produce more than ‘housing’ – to produce homes, Yes, sweet homes. They may play an important role in social development, Providing the environment in which the society can be Developed. Hence, this paper dealt in detail of the concepts of the Tamils in having their abodes with a mind-full knowledge of Environmental factors. The adoption of Geo-physical norms suitable for having proper housing for their self contented life, recorded in the Literatures reviewed are exposed with scientific and technical details. 

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16

Title : A Case Study on One-Source Multi-Platform Mobile Game Development Using Cocos2d-x

Authors : Jinseok Seo, Hun Choi

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In this paper, by introducing a case study on development of a first-person shooter game “Biosis” playable in both iOS and Android platforms, we present guidelines for developing one-source multi-platform mobile games using cocos2d-x game engine.  This paper also describes the “ResourceMaker” implemented to share and manage game assets efficiently in our multi-targeted development environment and the level engine by using which game planners can easily apply their designs to game levels.   We expect that the presented guidelines will help game developers reduce the time and cost for development in the mobile game ecosystem, the life-cycle of which is very short.

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17

Title : Lab VIEW based Wireless Notice Board

Authors : Mr. G. Praveenraj, Dr. I. Gerald Christopher Raj, Mr. S. Selvakumaran, Mr. P. Soundar Rajan

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Notice Board is primary thing in any organization and institution places such as schools, colleges, and public utilities such as shops, offices and other places. This wireless board can be used to save the environment from places where more papers, ink, and other organic material and especially a great time saver rather than posting a notice board with man power. ZigBee is a PAN technology based on the IEEE standard. Unlike Bluetooth or wireless USB devices, ZigBee devices have the ability to form a mesh network between nodes. Meshing is a type of daisy chaining from one to another device. This technique allows the short range of an individual node to be expanded and multiplied, covering a much larger area. The information is transmitted using ZigBee technique. The project is built around the pic micro controller. This micro controller provides all the functionality of the display and wireless control. It also takes care of creating different display effects for given text. The LabVIEW is also used as a graphical user interface in this system. LabVIEW is a highly productive development environment for creating custom applications that associate with real-world data or signals in fields such as science and engineering. The message can be transmitted to multi point receivers. At any time, the user can add or remove or alter the text according to his requirement. There is also user authentication in system used to avoid order to avoid any misuse in the system.

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18

Title : Energy Efficiency Maximization In Cognitive Radio Channels Using Modified Water Filling Algorithm

Authors : Sriharipriya.K.C, Rathika.M, Vanitha.N

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In this paper, we present a novel and computationally efficient water filling algorithm for multiuser in cognitive radio network (CRN). This algorithm is based on the multiuser water filling theorem and persuades the subcarrier allocation for a multiple access system. This approach exaggerates the total bit rate under the constraints of user-individual power budgets. Acquiring Energy Efficiency (EE) is very troublesome for wireless communication systems exclusively for CRN. The analysis here is with the mean EE maximization problem for secondary user (SU) with both primary user (PU) and SUs. The solution to the problem starts by examining both the peak and mean transmit power constraints for the SUs and outage probability constraint for the PUs. The problem here is nontrivial.  The results attest  that the efficiency of the system is enhanced with the proposed water filling algorithm and also it has been observed that the outage probability is reduced. Further, there is enhancement  in the capacity of a MIMO system.

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19

Title : Characterization of natural coating materials using Fourier transform infrared spectroscopy and pyrolysis-gas chromatography/mass spectrometry

Authors : Noriyasu Niimura, Hiroshi Terashima

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Fourier transform infrared spectroscopy (FT-IR) with attenuated total reflectance (ATR) technique is one of the non-destructive analysis methods.  Using this method, a Japanese lacquer film and a cashew resin film were characterized.  Additionally, the results were compared with those obtained by pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS).   Cashew resin has been used as a substitute of the Japanese lacquer, because it dries quickly and the cost is lower.  The absorption signals assigned to C-O stretching were detected at ca. 1260-1000 cm-1 in the respective FT-IR spectra.  The signal at 1031 cm-1 is prominent in the Japanese lacquer film, but that in the cashew resin film is not.  This prominent signal is attributed to plant gum.  The Japanese lacquer film is composed of plant gum of which main constituent is polysaccharide, but the cashew resin film is not. Using Py-GC/MS, the urushiol components were detected as the pyrolysis products from the Japanese lacquer film; however, cardanol components were detected from the cashew resin film.  The OH, CH, C=C and C-O stretching absorption signals detected by FT-IR are attributed to these compounds, though the prominent signal at 1031 cm-1 in the Japanese lacquer film is done to the plant gum.

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20

Title : An Experimental Study On Load Carrying Capacity Of A Magnetic Bearing

Authors : Shankar Prasad Rao V G, Vyshnav Raju P, Sharath. S

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The use of bearing is essential to all types of machines they provide the function of supporting heavier component in a desired position. These bearings have contact with the rotating part and causes surface wear which can be controlled by lubrication. The standards of performance for rotating equipment can be raised by providing robust, cost effective and easy to implement ‘Magnetic bearings’. A radial magnetic bearing, consisting of two permanent magnets, is an attractive choice because of its zero wear, negligible friction, and low cost, but it suffers from low load capacity, low radial stiffness, lack of damping and high axial instability. To enhance the radial load and radial stiffness and reduce the axial thrust, a theoretical and experimental study of various radial configurations, including hydrodynamic lubrication to improve dynamic performance of the magnetic bearing is made.

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21

Title : Synthesis and Characterization of Polymeric Composite Films by Designed Extruders

Authors : Ozkan Demirbas

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Polympropylene (PP) is extensively used in many industrial areas such as the automobile, household goods, packaging and electronic appliance properties applications due to its good performance and processing properties as well as low cost. Diatomite is a siliceous sedimentary rock. It has a unique combination of physical and chemical properties such as high porosity, high permeability, small particle size, large surface area and low thermal conductivity. For this purpose, in this study, the preparation of composite materials with good properties from a mixture of polypropylene and diatomite was considered. The surface of diatomite particles was treated by benzyltrimethylammonium chloride (BTMAC) and the diatomite filled polypropylene (PP) composites with a weight percentage range of the filler from 0 to 30% were prepared by means of melt blending in a designed single-screw extruder. The characterizations of the composite films synthesized by the laboratory type extruder were performed with FTIR, TGA, and SEM devices. Tensile strength tests were also performed for the mechanical properties of the synthesized films.

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