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Vol. 02, No. 09 [September 2016]


Paper Title :: Evaluation of the characteristics of the vibration-assisted tapping process using regression methodology and artificial neural network (ANN)
Author Name :: Swapnil Pawar || Amit Powar || Sandip Patil || Dr. Rajkumar Singh
Country :: India
Page Number :: 01-13
Abrupt breakage of the taps is repeatedly come across during tapping threads, especially when tapping on difficult to machine material like titanium. In the present study, regression models and artificial neural network (ANN) were developed to predict tapping torque on titanium alloys while performing axial and, axial and torsional vibration-assisted tapping (AVAT and ATVAT). For the development of predictive models, tapping speed, axial vibration amplitude and ratio of forward-backward movement were considered as model variables in both the cases. General full factorial design of experiments was carried out in order to collect torque values and this data is input for model construction. In regression and ANN, different models and algorithms were tested for optimum predictions. The performance of the regression mathematical model and ANN model were compared with experimental outputs. The comparison indicates that the ANN model predictions are closer to the experimental outputs compared to the regression model predictions. This model can be used for predicting the tapping torque and on the basis of this breakage of taps can be avoided. The details of experimentation, model developing strategies, testing, and performance comparisons are presented in the paper.
Keywords: Titanium alloys, vibration-assisted tapping, torque, regression model, ANN.
[1]. Cao, T. and J.W. Sutherland, Investigation of thread tapping load characteristics through mechanistics modeling and experimentation. International Journal of Machine Tools and Manufacture, 2002. 42(14): p. 1527-1538.
[2]. Liu, T.-I., et al., Monitoring and diagnosis of the tapping process for product quality and automated manufacturing. The International Journal of Advanced Manufacturing Technology, 2013. 64(5-8): p. 1169-1175.
[3]. Zhang, B., F. Yang, and J. Wang, Fundamental aspects in vibration-assisted tapping. Journal of materials processing technology, 2003. 132(1): p. 345-352.
[4]. Kuo, K.-L., Experimental investigation of ultrasonic vibration-assisted tapping. Journal of materials processing technology, 2007. 192: p. 306-311.
[5]. Nogami, T. and K. Nakano, Physical and Chemical Roles of Metalworking Fluids in a Vibration-Assisted Tapping System. Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2007. 1(4): p. 586-594.

Paper Title :: Innovative design of RFID based door security system implemented with GUI and student records database system
Author Name :: May Mon Phyo || Kyaw Thiha
Country :: Myanmar
Page Number :: 14-24
Door security has been a great concern of worldwide. As the technology is emerging in every second, abundant security systems have been developed and implemented to keep their welfare safe. Door security system is an essential mean of protecting our space from illegal invasion. This is done by preventing unauthorized entrance into buildings through entrance doors. Thus, the main idea in this research is to design a database security system that allows only authorized user to enter the premises depend on the limited time period. This research describes the design of Radio Frequency Identification (RFID) based security and database access control system for use in entrance of Department Door inside the University campus. The system combines RFID technology, keypad and also combine with database management system to accomplish the required task. Such a database management system with a user-friendly graphical interface or graphical user interface (GUI) begets to more secure and more facilitate the user. This research presents one such system that has been developed for the entrance door of the Department. The system facilitates efficient management of secure place, as well as easy edition of user records together with their attribute information; it provides update a user's record. Database used in this system can easily be update by using limited software application. The communication between the entrance points with central office by means of wireless technology. Limitation of user's check in time period is modified by Real Time Clock (RTC). In this door security system, Arduino MEGA is used for the purposes of storing user information, identifying whether authorized person or not, checking limitation time zone and emergency case.
KEYWORDS: Arduino MEGA, Database Management system, GUI, RFID, RTC, Security system
[1] Hawrra, H.A. & Al-Rubiae (2007). Design and Implementation of Computerized control room. Journal of Karbala University, 5(2).
[2] Zhang, L., "An Improved Approach to Security and Privacy of RFID application System", Wireless communications, Networking and Mobile Computing. International Conference. 1195- 1198, 2005..
[3] Galindo, J., (Ed.), Handbook on Fuzzy Information Processing in Databases, Hershey, PA: Information Science Reference, (an imprint of Idea Group Inc.), 2008.
[4] The Tech-FAQ , What is a Database? Electronic Archive: http://www.topbits.com/what-is-a-database.html, Accessed 24/07/2012, 2012.
[5] Connolly, T. M. and Begg, C. E., Database Systems: A Practical Approach to Design, Implementation and Management, Addison Wesley Publishing Company, 2004
Paper Title :: Analysis of Data placement mechanism for heterogeneous hadoop and mapreduce
Author Name :: Dr. Bharti kalra || Dr. D.K. Chauhan
Country :: India
Page Number :: 25-29
In this paper we proposed the algorithm for data placement with hadoop framework or initially through HDFS to distribute the data set to multiple nodes according to the capability of each node and reducing the common question span for data placement with duplication.
Keywords: Hadoop, Mapreduce, heterogeneous, data placement.
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Paper Title :: Design, Analysis and Modelling of Pantograph Type Leg Mechanism for Humanoid Robot
Author Name :: Jawale Keshav Uddhavrao || Vilas Warudkar
Country :: India
Page Number :: 30-42
Walking machines are becoming more popular now a day because of their abilities of working in non-planned conditions. Because of that, these walking machines can reach nearly 75% land of the whole world which is not possible to reach by using wheeled machines. So by understanding its importance, in this research work a pantograph type walking mechanism has been designed, analysed and a prototype has been fabricated. The basic working principle of this walking mechanism is similar to that of pantograph mechanism. All its design part has been done in such a way that it can be used for designing an efficient and reliable humanoid robot whose control is easy because it is a 2-DOF walking mechanism. A standard walking trajectory has been developed which is perfect for efficient walking on normal surface and for arbitrary surface it is easy to generate modified trajectory as per requirement for that just a controlled input is required which can be generated by appropriate coordination of sensors, actuators and computational control. A scaled prototype of this pantograph type walking mechanism has been fabricated to understand different parameters like trajectory flow, friction, balancing etc. Also, a velocity and acceleration analysis of this prototype has been done. In this way the whole design, analysis and modelling of pantograph type leg mechanism for humanoid robot has been carried out.
KEYWORDS : Pantograph, Mechanism, Robot, Leg, Design.
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Paper Title :: A Short term study of Dissolved Oxygen behavior in Adyar River, Chennai
Author Name :: Dr. Lavanya Vaithyanathan || Salome Solomon || Sunkara Krishna priya
Country :: India
Page Number :: 43-49
This paper addresses the behavior of dissolved oxygen content (DO) in Adyar river during early hours of day in the summer season (March, 2016) – May 2016). The study showed that the Dissolved Oxygen in the stream is below 4mg/l in a stretch of 42km and therefore water is not potable. In addition to this the study assessed the physico-chemical parameter of full stretch of Adyar river and identified the high contamination zone of river and also applied the Streeter - phelp equation to find out the critical deficit and critical time of deficit across the river stretch
Key words: Dissolved Oxygen Adyar River, Deoxygenation, Oxygen Deficit
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Paper Title :: Equilibrium, Thermodynamic and Kinetics Studies on the Adsorption of Lead (II) and Cadmium (II) from Aqueous Solution by Oil Palm Flower
Author Name :: Odeh D. || Goji S.Y. || Egila J.N.
Country :: Nigeria
Page Number :: 50-59
The feasibility of using oil palm flower as a low-cost absorbent for the removal of Pb(II) and Cd(II) from aqueous solution was studied. The % adsorption of the metal ions was found to be pH, initial metal concentration, contact time, adsorbent dose and temperature dependent. The optimum pH was found to be pH 5 for Pb(II) and pH 7 for Cd (II). About 97-100% removal of the metal ions was observed with an adsorbent dose range of 1-3g per 100ml of 50mg/L solution. The optimum temperature for the removal of both metal ions was found to be 40oC. The values of ΔHo and ΔGo indicated that the adsorption of Pb(II) and Cd(II) onto oil palm flower was exothermic and spontaneous. The equilibrium adsorption data were better fitted to the Langmuir adsorption isotherm than the Freundlich. The maximum adsorption capacity qmax was 12.987mg/g for Pb(II) and 13.514mg/g for Cd(II). The rate of Pb(II) and Cd(II) adsorption onto oil palm flower followed the pseudo-second order kinetics. The result of the study showed that oil palm flower holds good potential as a low-cost adsorbent in the removal of heavy metals from aqueous solution.
KEY WORDS: Adsorbent, Adsorption kinetics, aqueous solution, metal ions, oil palm
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[5] S.S. Dubey and R.K. Gupta, Removal behavior of babool bark (Acacia nilotica) for sub-micro concentrations of Hg2+ from aqueous solution: a radiotracer study, Sep. Purif. Tech., 41(1), 2005, 21-28.

Paper Title :: Cu-Pd Bimetallic Catalyst for Electrocatalytic Reduction of Nitrates in Water
Author Name :: Bren Mark B. Felisilda || Louis Hamenu || Jeong Ho Park || Chung Sup Yoon || Jang Myoun Ko
Country :: South Korea
Page Number :: 60-66
This paper reports the use of bimetallic catalysts, prepared via co-electrodeposition of Cu and Pd from chloride baths in 0.5 M HNO3 on Ti substrates and its catalytic effect on nitrate reduction. Electrochemical measurements were made using cyclic and linear sweep voltammetry while deposition was made via chronopotentiometry at -0.5 V vs Ag/AgCl. Scanning electron microscopy analyses revealed that the films produced by potentiostatic deposition are porous and rough, which is suitable for electrocatalysis applications. Results show that prepared electrocatalyst was able to reduce nitrates with 86.50% efficiency after 3 hours. Meanwhile, soaking the electrocatalyst in tap water over time decreases its efficiency to some extent but still capable of reducing high concentration of nitrates in water.
Keywords: potentiostatic electrodeposition; bimetallic catalyst; electrochemical reduction; nitrates
[1]. Gupta, S. K.; Gupta, R. C.; Gupta, A. B.; Seth, A. K.; Bassin, J. K.; Gupta, A., "Recurrent acute respiratory tract infections in areas with high nitrate concentrations in drinking water". Environ. Health Perspect. 108(4), 363(2000).
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[5]. Prüsse, U.; Vorlop, K.-D., "Supported bimetallic palladium catalysts for water-phase nitrate reduction". J. Mol. Catal. A: Chem. 173(1), 313-328(2001).

Paper Title :: Galvanostatic co-electrodeposition of Cu/Pd on Ti as catalyst for nitrates reduction in water
Author Name :: Bren Mark Felisilda || Kyoung Young Eum || Jin Woo Kim || Jang Myoun Ko || Changwoo Park
Country :: South Korea
Page Number :: 67-74
The galvanostatic co-electrodeposition of copper and palladium on titanium is studied using cyclic voltammetry and linear sweep voltammetry. The optimized current density and time for co-electrodeposition is found to be 7 mA/cm2 for 7200 seconds. The prepared electrocatalyst showed promising efficiency of reducing nitrates in the range of 95-98 % from an original concentration of 100 ppm. SEM images reveal the surface deposits to be amorphous with cauliflower-like structures and the EDX analysis show deposition of the Cu/Pd on the Ti substrate. The reduction efficiency of the catalyst was enhanced by 2-3% with an addition of Na2SO4 as a supporting electrolyte. Soaking the prepared electrodes in tap water for 14 weeks caused detrimental effects on its nitrate reduction efficiency.
Keywords: galvanostatic electrodeposition; Cu/Pd bimetallic; electrochemical reduction; nitrates
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