Informatics Publishing Limited

S. Arun Kumar ¹, S. Vijayakumari ¹, B. Dharani Chander ¹

Affiliations
1 IT Department, Panimalar Engineering College, Chennai, IN

Abstract

Traditional login based Password Schemes are vulnerable to several attacks. So image based passwords are introduced where it is also suffers from shoulder surfing attack. In order to overcome these attacks we are using steganography which combines both the text based password and also image as a password. In this method the carrier file is used as a password. In this the user selects an Image and writes a pin no into the image using steganography and it is encrypted, and then made Hash. The hash is used as a password and the pin number hidden in the image is also used as a password. Whenever the user login, the user is provided with a One Time Password (OTP), this OTP is sent directly to the user mobile. When the user forgot the pin number he uses his image password to retrieve the pin number. The pin number is directly mailed to the users registered Email ID. The user can retrieve the image if it was lost or damaged or modified using his pin number. This paper provides a study of how a mobile phone is adopted as security token. It starts with discussing the necessity of multi-factor authentication and the use of mobile phone as security token to generate OTP with the help of hashing algorithms. Even though hash functions are carefully designed to satisfy the required security properties, they are still vulnerable to collision attacks.

Keywords

Authentication, Graphical Password, Improved Hashing, One-Time-Password, Steganography, Token Number.

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Sunil Magadum ¹, S. Arun Kumar ¹, V. G. Yoganath ¹, C. K. Srinivasa ¹

Affiliations
1 Central Manufacturing Technology Institute, Bangalore-560022, IN

Abstract

In the present work machining of SS304 was carried out on a lathe using coated carbide tool at high cutting speeds. The effect of cryogenic cooling on tool life and cutting forces were analyzed and compared with conventional flood coolant. Tests were carried out at cutting speed of 200 and 250 m/min, and the feed rate, depth of cut were kept constant at 0.2 mm/rev and 1.5 mm respectively. Coated carbide CNMG 120404 Insert was used as a cutting tool. The results have revealed that cryogenic machining has yielded better tool life as compared to conventional flood machining.

Keywords

Cryogenic Machining, Tool Life, Cutting Forces, Coated Carbide Tool.

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S. Arun Kumar ¹, T. Arun Kumar ¹

Affiliations
1 SCSE, VIT University, Vellore, Tamil Nadu, IN
2 SCSE, VIT University, Vellore, Tamil nadu, IN

Abstract

Requirements engineering is one of the challenging and crucial phase in the development of software products. One of the key reasons found in literature survey the failure of software projects due to poor project management and requirement management activity. This paper mainly addresses 1. Formulate a mixed organization structure of both traditional approaches and agile approaches, to apply KM practices for both the approaches to achieve requirements issues such as missing and inconsistency of requirements and improve the project management activities in a global software development environment. 2. Propose requirements metrics to measure and manage software process during the development of information systems. The major contribution of this paper is well-founded methods to manage the project and effective requirements management metrics to measure changing requirements while giving particular attention to the requirements engineering issues such as completeness and consistency. Two hypotheses have been formulated and tested this problem through statistical techniques and validate the same.

Keywords

Requirements Engineering (RE), Requirements Management (RM), Requirements Metrics, Knowledge Management (KM).

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R. Paullinga Prakash ¹, S. Palani ¹, D. Vijaya Kumar ¹, S. Arun Kumar ², S. Shanmugan ³

Affiliations
1 Dept. of Mech. Engg., Vel Tech Multitech, Avadi, Tamilnadu, IN
2 Dept. of Mech. Engg., Apollo Engg. College, Chennai, Tamilnadu, IN
3 Dept. of Physics, Vel Tech Multitech, Avadi, Tamilnadu, IN

Abstract

Use of gaseous fuels for fuelling the engines reduces reactive hydrocarbons and do not pose the problem of vaporization as with the liquid fuels. One of the problems of gaseous mixers is the ability to prepare a homogeneous mixing of air and fuel at a specific air-fuel ratio prior to entering the engine resulting high exhaust emissions. The objective of this project is to carry out three dimensional CFD analysis of CNG injection mixer to understand the flow behaviour of air fuel mixture and to optimize the design of injection mixer. The analysis was carried out by varying the injection position and injection inclination. The results of the CFD simulation could be used to understand the effect of position of fuel tube, injection inclination in the mixing of air and fuel. Further the results of the study would also be considered for the design modification.

Keywords

Flow Analysis, Computational Fluid Dynamics, Injection Mixer, CNG Engines.

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Muttevi Hyagreva Kumar ¹, K. Prabhu ², Mudiganti Ram Krishna Rao ³, R. Lakshmi Sundaram ⁴, Sampad Shil ⁵, S. Arun Kumar ⁵

Affiliations
1 Sree Balaji Medical College and Hospital, Bharath University, Chrompet, Chennai - 600092, IN
2 Department of Anatomy, Sree Balaji Medical College and Hospital, Bharath University, Chrompet, Chennai - 600092, IN
3 Department of Industrial Biotechnology, Bharath Institute of Higher Education and Research, Chennai-600073, IN
4 Central Research Facility, Sri Ramachandra Medical College and Research Institute, Purur, Chennai - 600116, IN
5 Department of Industrial Biotechnology, Bharath Institute of Higher Education and Research, Chennai- 600073, IN

Abstract

The present study deals with the GC MS analysis of one Ayurvedic prepaation, Vasakadyarishtam, which is a mucolytic medicine used for the treatment of cough, cold, chest congestion asthma and related diseases like bronchitis, inflammation and hemoptysis. The most important constituent of this medicine is Vasaka or Adhatoda vesika plant, which is known for its anti-cough and cold usage in Ayurveda. This study was to understand the main biomolecules present in this medicine by GC MS analysis. The results indicted the presence of some important molecules such as Eucalyptol, Phenylethyl alcohol, Camphor, Ethyl hydrogen succinate, Succinic acid, cyclobutyl ethyl ester, 3-Cyclohexen-1-ol,4-methyl-(1-methylethyl)-(R)-,. alpha.-Terineol, 5- Hydroxymethyl furfural, p-Anisic acid,4-nitrophenyl ester, 2-Propen-1-0l,3-phenyl, Benzeneethanol, 4-hydroxy- Propiophenone, 2‘-(trimethylsioxy)-, Hexadecanoic acid, 2-hydroxy-1-(hydroxymethyl)ethyl ester and Octadecanoic acid and 2,3 –dyhydroxypropyl ester. These molecules are known for their various medicinal properties which indicate their roles in this formulation.

Keywords

Vasakadyarishtam, Adhatoda vesika, Eucalyptol, Phenylethyl Alcohol, Camphor, Ethyl Hydrogen Succinate, Alpha.-Terineol.

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L. Jeyanthi Rebecca ¹, S. Arun Kumar ¹, D. Sharmila ¹, E. Kowsalya ¹, R. M. Gokula Lakshmi ¹

Affiliations
1 Department of Industrial Biotechnology, BIHER, Selaiyur, Chennai-600073, IN

Abstract

In this study the evaluation of genetic diversity among Ocimum sanctum was undertaken. The method used to find variation among Ocimum sanctum was restriction fragment length polymorphism excluding blot hybridization. The Ocimum sanctum plants were taken from five different regions of Tamil Nadu - Chennai, Karaikudi, Kancheepuram, Vellore, Tanjavur and Puducherry. Along with whole plants the soil and water samples in the regions of the plant was also collected. DNA was isolated using CTAB protocol with ammonium acetate and ethanol precipitation. Then the DNA was quantified and restriction digested with EcoR1 and HindIII (double digested). Double digested Lambda DNA (EcoRI and Hind III) was used as marker and the samples along with marker were electrophoresed in 0.8% agarose gel at 80V and the bands were observed in UV trans illuminator. Based on observation of bands the plants from Karaikudi, Tanjavur, Kancheepuram and Puducherry may have been descended from Chennai plants and Vellore plant may have been descended from Karaikudi plant. There was sufficient variation to predict the migration pattern of the plant. And variation among water-hardness and pH and soil-N, P, K content and pH was also diverse. The measured soil and water characteristics may be few of the reasons for the variation among Ocimum sanctum around Tamil Nadu and Puducherry.

Keywords

Ocimum sanctum, CTAB, DNA Extraction, Restriction Digestion, Nutrient of Soil And Hardness.

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Rajaramamohanarao Chennu ¹, S. Sudhakara Reddy ¹, Anupam Awasthi ¹, Gurudev T. Maroti ¹, S. Arun Kumar ¹, V. Sreeram ¹

Affiliations
1 Central Power Research Institute, Bengaluru – 560012, Karnataka, IN

Abstract

The market requirements for Medium Voltage (MV) metal enclosed switchgear are getting more and more stringent. Both building costs as well as the level of the transmitted and distributed electrical power have increased rapidly over the recent years and are expected to continue to rise. This means that switchgear manufacturers must bring more and more compact and powerful systems on the market, while being simultaneously as cost effective as possible. Internal Arc Classification (IAC) of switchgear according to IEC and IEEE standards is one of the most important requirements to guarantee safety in case of internal arc faults. Internal arcs cause a sudden pressure rise in electrical installations. This leads to an extreme pressure stress acting on switchgear compartments and switchgear rooms and could cause collapse of buildings This paper describes few important design rules and innovations, which were necessary to achieve best results during internal arc tests. Furthermore it demonstrates the effect of roof height during the internal arc test with the important case studies. Finally the best solution to eliminate the roof effect is also proposed.

Keywords

HP aignhe lSpeed Videography Analysis, IEC 62271-200 and IEEEC37.20.7, Internal Arc Test, Roof Height, Switch Gear panel.

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