Informatics Publishing Limited

P. Chandrasekar ¹, S. Ramanath ¹

Affiliations
1 P.G. and Research Department of Commerce, National College (Autonomous), Trichy, Tamil Nadu, IN

Abstract

India is the second largest producer of cement in the world. The production of cement in India has increased at a compound annual growth rate of 9.7 per cent to reach 272 million tones in the period 2006-2013. It is expected to touch 407 million tones by 2020. The globally-competitive cement industry in India continues to witness positive trends such as cost control, continuous technology up gradation and increased construction activities.

With the best limestone deposit an available it is able to produce the high quality cement of various grades and supplies government department and public. Wide application has been received from various quarters for its ARASU brand cement being marketed in Tamil Nadu and Kerala. Capacity enhancement at Ariyalur factory is also proposed of late it operated exceedingly well producing more than its capacity.

The comparative statement analysis to the Tamil Nadu Cement Corporation Limited in analysis to that concern will be process in profitability or not. So the comparative balance sheet is prepared in the compared with previous years. Every company followed to the particular process or method will be every financial year. So the company changes with our production method and marketing style. So the company earnings to the profit in future year. This every year the company followed to the benefit of the process.

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P. Chandrasekar ¹, Sriram ¹, Santhosh ¹, V. Balusamy ², P. Chandramohan ³

Affiliations
1 Dr. Mahalingam College of Engg. and Tech., Pollachi 642 003, Tamilnadu, IN
2 P.S.G. College of Technology, Coimbatore 641 004, Tamilnadu, IN
3 Sri Krishna College of Engineering, Coimbatore 641 008, Tamilnadu, IN

Abstract

The Titanium-Titanium boride (Ti-TiB) composite was subjected to surface modification using laser surface treatment. A significant increase in surface hardness to 980 VHN, relative to 513 VHN for the untreated material occurred with a laser energy input of about 30 kJ/m, achieved with 20 and 30 mm/s traverse speed. This increase in hardness corresponds to increase in surface volume fraction of TiB whiskers to about 65 % at about 30 kJ/m and above.

Keywords

Laser Treatment, Metal Matrix Composites, X-Ray Diffraction and Scanning Electron Microscopy.

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V. Vijay ¹, K. Arjun ¹, H. Arun Kumar ¹, A. Vinoth Kumar ¹, P. Chandrasekar ¹, V. Balusamy ²

Affiliations
1 Dr. Mahalingam College of Engg. & Tech., Pollachi, 642 003, Tamil Nadu, IN
2 P.S.G. College of Technology, Coimbatore, 641 004, Tamil Nadu, IN

Abstract

This paper attempts at a review of the recent developments on the improvement of surface corrosion in titanium alloys and composites by various surface treatment techniques. The surface treatment techniques include different types of laser surface coating, plasma enhanced vapour deposition, high intensity plasma beam coating, cathodic are deposition and reactive magnetron sputtering. Also the effect of laser surface treatment on Ti-TiB composite and its corrosion resistance properties were reviewed. The possibility of laser surface modification of Ti-TiB composite surface for enhancement of corrosion properties was also reviewed and discussed.

Keywords

Titanium Alloys and Composites, Corrosion, Surface Treatment, Protective Effect.

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R. Raja Karpaga Brinda ¹, P. Chandrasekar ²

Affiliations
1 Sri Shakthi Institute of Engineering and Technology, Coimbatore, IN
2 Dept of ECE, Sri Shakthi Institute of Engineering and Technology, Coimbatore, IN

Abstract

Mobile Ad-hoc Networks are an emerging area of mobile computing. An ad hoc network is a collection of mobile nodes that dynamically form a temporary network and are infrastructure less. Mobile adhoc network are prone to security threats. The lack of infrastructure and dynamic structure makes them easy prey to security attacks. The security threats may vary from active impersonation attacks to passive eaves-dropping. A black hole is a malicious node that replies the route requests that it has a fresh route to destination and then it drops all the receiving packets. The damage will be serious when they work as a group. This type of attack is called cooperative black hole attack. This proposed model includes a secure routing mechanism for DSR. We use the BDSR (Baited-Black-hole DSR) to detect and avoid black hole attack and extend the concept to the detection of co-operative black hole attack. The BDSR merges the proactive and reactive defense architecture in MANET by using the virtual and non-existent destination address to bait the malicious node to reply RREP. The performance graph is simulated for the packet delivery ratio and end to end delay.

Keywords

Black Hole, Cooperative Black Hole, DSR, Manet.

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V. Jai Ganesh ¹, R. Raju ¹, S. Natarajan ², S. Bharathvasan ², P. Chandrasekar ²

Affiliations
1 Dept. of Industrial Engg., Anna University, Chennai, IN
2 Dept. of Production Engg., St. Peters Engg. College, Avadi, Chennai, IN

Abstract

The objective of this study is to select the optimal combination of machining parameters in Wire Electrical Discharge Machining (WEDM) process such that machining performance gets increased. Here the machining performances i.e. responses are measured in terms of Metal Removal rate (MRR), Surface Finish (SF) and Kerf (Cutting width). The most critical factors that affect performance measures are identified as Input peak voltage, Pulse-ON time, Pulse-OFF time, Dielectric fluid pressure, Wire feed, Wire speed and Servovoltage. Eighteen experimental trails based on L₁₈ (2¹ × 3⁷) orthogonal array are conducted and the corresponding responses are measured. Classical methods like factor analysis and desirability index are used for solving this multi-objective problem. Finally the results of two methods are compared and the best combination is chosen.

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