Vellore Institute of Technology (VIT) is a private university located in&nbsp;Tamil Nadu, India. Founded in 1984, as Vellore Engineering College, the institution offers 20 undergraduate, 34 postgraduate, four integrated and four research programs. It has campuses in Vellore, Amravati, Bhopal and Chennai.

VIT is one of the top ranked private universities in India according to NIRF, THE and QS Rankings.&nbsp;Govt. of India has recognized&nbsp;VIT, Vellore as an&nbsp;Institution of Eminence. This has allowed VIT to take independent quality initiatives and move up in world ranking.

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VIT University

Food production and processing industry holds a perpetual relationship with microorganisms and their by-products. In the present study, we aimed to identify beneficial cold-adapted bacteria devoid of any food spoilage properties and study their antagonism against common food-borne pathogens at low temperature conditions. Ten isolates were obtained on selective isolation at 5. °C, which were spread across genera Pseudomonas, Sphingomonas, Psychrobacter, Leuconostoc, Rhodococcus, and Arthrobacter. Methanol extracts of strains were found to contain several bioactive metabolites. Among the studied isolates, methanol extracts of S. faeni ISY and Rhodococcus fascians CS4 were found to show antagonism against growth of Escherichia coli, Proteus mirabilis, Enterobacter aerogenes, Listeria monocytogenes and Vibrio fischeri at refrigeration temperatures. Characterization of the abundant yellow pigment in methanol extracts of S. faeni ISY through UV-Vis spectrophotometry, high performance liquid chromatography (HPLC) and mass spectrometry (LC-MS) revealed the presence of astaxanthin, which, owing to its presence in very large amounts and evidenced to be responsible for antagonistic activity of the solvent extract. © 2015 Elsevier GmbH.

VIT Unitversity

Department of Energy and Power Electronics

School of Electrical Engineering

Vellore Campus

Department of English

School of Social Sciences & Languages

Department of Biotechnology

School of Bio Sciences and Technology

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Microbiological Research

Astaxanthin from psychrotrophic Sphingomonas faeni exhibits antagonism against food-spoilage bacteria at low temperatures

The chips designed for security related applications must be robust, to globally resist various types of attacks. Power analysis attacks are now becoming a significant threat to the exploitation of security in many devices. These attacks proficiently disclose the secret key information without much effort. Advanced Encryption Standard (AES) is a widely used symmetric cryptographic algorithm, which is also susceptible to such power attacks. In the proposed work, we have replaced the AddRoundKey block of AES with adiabatic 2N-2N2P logic. This countermeasure breaks the dependency between the power consumption trace and the secret key information. To validate its efficiency in counteracting against DPA we have compared with CMOS logic. In addition to the resistance offered against DPA attacks, this design lowers the overall power consumption as part of the energy consumed is recovered during each clock cycle. © 2013 IEEE.

Mathematics

School of Advanced Sciences

Chennai Campus

Electronics

School of Electronics Engineering

INTERNATIONAL CONFERENCE ON SMART STRUCTURES AND SYSTEMS - ICSSS'13

An energy recovery logic level countermeasure for power analysis attacks on AES

World University root node

Department of Physics

Journal of Materials Science

Photoacoustic measurement of thermal properties of TiN thin films

Nanostructured titanium aluminium nitride ( TiAlN ) thin films were prepared on Si (111) substrate by reactive DC magnetron sputtering technique for various N 2 flow rates. X-ray diffraction showed that the films are nanocrystalline and the grain size decreases from 14 nm to 5 nm as the N 2 flow rate is increased. The thermal properties are then studied by photoacoustic (PA) spectroscopy. The study revealed an increase in thermal diffusivity and conductivity with increasing N 2 flow rates, and the measured values of the thermal properties are significantly lower than those obtained with bulk materials which constitute TiAlN .

International Journal of Modern Physics B

PHOTOACOUSTIC STUDIES ON TiAlN NANOSTRUCTURED THIN FILMS