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Greater Noida, India

Gautam Buddha University is a government university located in Greater Noida, Uttar Pradesh, India.It is one of Uttar Pradesh's state government university which commenced its first academic session in the year 2008.University campus is spread over 511 acres in Greater Noida and offers Bachelors,Masters and Doctoral degrees in Engineering,Business Administration,Computer Applications ,Biotechnology and Buddhist Studies and is mainly focused on research.It gives the students interaction with industry,preparation in entrepreneurship and personality development courses. Wikipedia.


Sharma S.,Gautam Buddha University
International Journal of Advanced Manufacturing Technology | Year: 2012

In the present investigation, Ni-WC composite powder was modified with the addition of CeO2 in order to form a new composition of Ni-WC-CeO 2. The Ni-WC and Ni-WC-CeO2 compositions were used for coating deposition by high-velocity oxy-fuel (HVOF) spraying process so as to study the effect of CeO2 addition on microstructure, distribution of various elements, hardness, formation of new phases, and abrasive wear behavior. Further, the effect of load, abrasive size, sliding distance, and temperature on abrasive wear behavior of these HVOF-sprayed coatings was investigated by response surface methodology. To investigate the abrasive wear behavior of HVOF-sprayed coatings four factors such as load, abrasive size (size in micrometers), sliding distance (meters), and temperature (C) with three levels of each factor were investigated. Analysis of variance was carried out to determine the significant factors and interactions. Investigation showed that the load, abrasive size, and sliding distance were the main significant factors while load and abrasive size, load and sliding distance, abrasive size and sliding distance were the main significant interactions. Thus an abrasive wear model was developed in terms of main factors and their significant interactions. The validity of the model was evaluated by conducting experiments under different wear conditions. A comparison of modeled and experimental results showed 4-9% error. The abrasive wear resistance of coatings increases with the addition of CeO2. This is due to increase in hardness with the addition of CeO2 in Ni-WC coatings. © 2011 Springer-Verlag London Limited. Source


Awasthi A.K.,Gautam Buddha University | Srivastava K.,Central Institute of Plastic Engineering and Technology
Journal of Medical Systems | Year: 2013

In recent years, the increased availability of lower-cost telecommunications systems and customized patients monitoring devices made it possible to bring the advantages of telemedicine directly into the patient's home. These telecare medicine information systems enable healthcare delivery services. These systems are moving towards an environment where automated patient medical records and electronically interconnected telecare facilities are prevalent. Authentication, security, patient's privacy protection and data confidentiality are important for patient or doctor accessing to Electronic Medical Records (EMR). A secure authentication scheme will be required to achieve these goals.Many schemes based on cryptography have been proposed to achieve the goals. However,many schemes are vulnerable to various attacks, and are neither efficient, nor user friendly. Specially, in terms of efficiency, some schemes are resulting in high time cost. In this paper we propose a new authentication scheme that is using the precomputing to avoid the time-consuming exponential computations. Finally, it is shown to be more secure and practical for telecare medicine environments. © Springer Science+Business Media New York 2013. Source


Lamb R.S.,Ohio State University | Citarelli M.,Ohio State University | Teotia S.,Gautam Buddha University
Cellular and Molecular Life Sciences | Year: 2012

Poly(ADP-ribosyl)ation is the covalent attachment of ADP-ribose subunits from NAD + to target proteins and was first described in plants in the 1970s. This post-translational modification is mediated by poly(ADP-ribose) polymerases (PARPs) and removed by poly(ADP-ribose) glycohydrolases (PARGs). PARPs have important functions in many biological processes including DNA repair, epigenetic regulation and transcription. However, these roles are not always associated with enzymatic activity. The PARP superfamily has been well studied in animals, but remains under-investigated in plants. Although plants lack the variety of PARP superfamily members found in mammals, they do encode three different types of PARP superfamily proteins, including a group of PARP-like proteins, the SRO family, that are plant specific. In plants, members of the PARP family and/or poly(ADP-ribosyl)ation have been linked to DNA repair, mitosis, innate immunity and stress responses. In addition, members of the SRO family have been shown to be necessary for normal sporophytic development. In this review, we summarize the current state of plant research into poly(ADP-ribosyl)ation and the PARP superfamily in plants. © 2011 Springer Basel AG. Source


Sharma S.,Gautam Buddha University
Journal of Thermal Spray Technology | Year: 2012

In the present study, the effect of CeO 2 addition in 1006 powder coatings on microstructure, microhardness, and high-temperature erosion resistance were studied. The CeO 2 addition refines microstructure, forms new phases, and increases microhardness of HVOF-sprayed coatings. The erosive wear behavior of coatings were investigated by Response Surface Methodology (RSM). To investigate and develop an erosive wear model of unmodified 1006 (without CeO 2) and modified 1006 (CeO 2 addition) coatings' four factors: velocity, impact angle, temperature, and feed rate, each factor at three levels were used. ANOVA was carried out to determine the significant factors and interactions. Thus, an erosive wear model was developed in terms of main factors and their significant interactions. A comparison of modeled and experimental results showed 4-7% error. The modified 1006 coating showed high erosive wear resistance as compared with unmodified 1006 coating. This is due to increase in hardness and refined microstructure of the modified 1006 coating. © 2011 ASM International. Source


Sharma S.,Gautam Buddha University
Journal of Thermal Spray Technology | Year: 2012

This paper describes the effect of combined addition of rare earth elements namely CeO 2 and La 2O 3 in Ni-base alloy coatings. The rare earth addition refines microstructure, increases hardness, and abrasive wear resistance of coatings. The abrasive wear behavior of these coatings was investigated using four factors load (L), abrasive size (A), sliding speed (S), and temperature (T) with three levels of each factor using RSM. ANOVA was carried out to determine the significant factors and interactions. Investigation showed that the load, abrasive size, and sliding speed were the main significant factors while load and abrasive size, load and sliding speed, abrasive size and sliding speed were the main significant interactions. Thus, an abrasive wear model was developed in terms of significant factors and their significant interactions. The validity of the model was evaluated by conducting experiments under different conditions. A comparison of modeled and experimental results showed 3-8% error. © 2012 ASM International. Source

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