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Search Results: 1 - 10 of 21138 matches for " Vineet Kumar Vashishtha "
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ADVANCEMENT OF RAPID PROTOTYPING IN AEROSPACE INDUSTRY -A REVIEW
Vineet Kumar Vashishtha,,Rahul Makade,,Neeraj Mehla
International Journal of Engineering Science and Technology , 2011,
Abstract: Rapid prototyping technology have emerged a new innovation to reduced the time cost of moulds fabrication by creating 3D product directly from computer aided design thus the designer is able to perform design validation and accuracy analysis easily in a virtual environment as if using a physical model. The primary aim of this paper is to give the reader an overview of the current state of the art in rapid prototyping technology .The paper also deal with feature’s of rapid prototyping in Aerospace industry and some of the existing problem’s of rapid rototyping.
SOLAR POWER THE FUTURE OF AVIATION INDUSTRY
Vineet Kumar Vashishtha,,Ashok Kumar,,Rahul Makade,,Shashi Lata
International Journal of Engineering Science and Technology , 2011,
Abstract: Solar powered aircraft capable of continuous flight was a dream some years ago, but this great challenge has become feasible today. Quite a few manned and unmanned solar powered aircraft have been developed and flown in the last 30 years. The research activities carried out till now have been mainly focused on flying wings or conventional aircraft configurations, with a great emphasis on the technological aspects. Solar powered aircraft uses solar panel to collect the solar radiation for immediate use but it also store the remaining part forthe night flight. The paper deals with the current state of art of empower the aviation industry with solar power and the shortcoming and the future aspect.
Prime number generation and factor elimination
Vineet Kumar
Mathematics , 2014,
Abstract: We have presented a multivariate polynomial function termed as factor elimination function,by which, we can generate prime numbers. This function's mapping behavior can explain the irregularities in the occurrence of prime numbers on the number line. Generally the different categories of prime numbers found till date, satisfy the form of this function. We present some absolute and probabilistic conditions for the primality of the number generated by this method. This function is capable of leading to highly efficient algorithms for generating prime numbers.
Efficient Retrieval of Text for Biomedical Domain using Expectation Maximization Algorithm
Sumit Vashishtha,Yogendra Kumar Jain
International Journal of Computer Science Issues , 2011,
Abstract: Data mining, a branch of computer science [1], is the process of extracting patterns from large data sets by combining methods from statistics and artificial intelligence with database management. Data mining is seen as an increasingly important tool by modern business to transform data into business intelligence giving an informational advantage. Biomedical text retrieval refers to text retrieval techniques applied to biomedical resources and literature available of the biomedical and molecular biology domain. The volume of published biomedical research, and therefore the underlying biomedical knowledge base, is expanding at an increasing rate. Biomedical text retrieval is a way to aid researchers in coping with information overload. By discovering predictive relationships between different pieces of extracted data, data-mining algorithms can be used to improve the accuracy of information extraction. However, textual variation due to typos, abbreviations, and other sources can prevent the productive discovery and utilization of hard-matching rules. Recent methods of soft clustering can exploit predictive relationships in textual data. This paper presents a technique for using soft clustering data mining algorithm to increase the accuracy of biomedical text extraction. Experimental results demonstrate that this approach improves text extraction more effectively that hard keyword matching rules.
A Study and Implementation of RSA Cryptosystem
Sinjan Chakraborty,Vineet Kumar
Computer Science , 2015,
Abstract: This project involves an implementation of the Rivest Shamir Adleman (RSA) encryption algorithm in C. It consists of generation of two random prime numbers and a number co- prime to phi(n) also called euler toitent function. These three are used to generate a public key and private key. The user has to enter a message which is encrypted by the public key. The algorithm also decrypts the generated cipher text with the help of the private key and returns the plain text message which was encrypted earlier.
Tumour Associated Tissue Eosinophilia as a Prognostic Indicator in Squamous Cell Carcinoma of Upper Aerodigestive Tract  [PDF]
Chandra Bhan, Kartikeya Purohit, Jagdish Prasad Purohit, Ajay Pratap Singh, Bhoopendra Singh, Siva Selvaraj, Manish Pandey, Vineet Kumar, Vineet Kumar
International Journal of Otolaryngology and Head & Neck Surgery (IJOHNS) , 2016, DOI: 10.4236/ijohns.2016.52009
Abstract: Immune response is known to develop against malignant tumours. Malignant tumours express newer antigen on their cell surface membrane which elicit immunological reaction in and around tumoural tissue. In early part of immune reaction neutrophil, eosinophil migrates followed by monocyte-macrophage cell. Tumor associated tissue eosinophilia (TATE) is believed to play a significant role in the biological behavior of the carcinoma. Eosinophil infiltrate in association with the head and neck squamous cell carcinoma (SCC) have been reviewed from time-to-time. The significance of such an association has been variably thought to be either a potential diagnostic tool for stromal invasion or as a prognostic indicator. The aim of this study was to investigate and evaluate the possible role of the tumour associated tissue eosinophilia (TATE) as a predictive indicator for the grading and establishing prognosis of the upper aerodigestive tract squamous cell carcinoma (SCC).
In vitro effect of herbicides on important fungal pathogens of wheat
PARAMJIT SINGH BAGGA and VINEET KUMAR
Indian Phytopathology , 2012,
Abstract: The herbicides pendimethalin, isoproturon, 2,4-D sodium salt and butachlor were tested against cultures of Fusarium nivale [Monographella nivalis], F. moniliforme [Gibberella fujikuroi], Helminthosporium sativum [Cochliobolus sativus] and Alternariasp. growing on potato dextrose agar. None of the herbicides stimulated fungal growth and the fungi showed similar responses to individual herbicides. Overall, the results showed that isoproturon was more inhibitory to fungi than 2,4-D sodium salt and pendimethalin.
Resistance to bakanae or foot-rot disease in basmati rice
PARAMJIT SINGH BAGGA and VINEET KUMAR
Indian Phytopathology , 2012,
Abstract: Eighty-five genotypes of Basmati rice were evaluated against Fusarium moniliforme [Gibberella fujikuroi] during the 1997 and 1998 kharif seasons. Forty-day-old seedlings were inoculated by dipping their roots in a concentrated conidial suspension ofthe pathogen. Thirteen lines were highly resistant and 7 were moderately resistant. All four recommended varieties grown in Gurdaspur district were highly susceptible to foot-rot (78.3-91.9%).
Analyzing Cryptographic Algorithms for Secure Cloud Network
Vineet Kumar Singh,Maitreyee Dutta
Computer Science , 2014,
Abstract: Pay as per usage concept of Cloud computing has brought revolutionary changes in the information technology world.
Plant Extract Synthesized PLA Nanoparticles for Controlled and Sustained Release of Quercetin: A Green Approach
Avnesh Kumari, Vineet Kumar, Sudesh Kumar Yadav
PLOS ONE , 2012, DOI: 10.1371/journal.pone.0041230
Abstract: Background Green synthesis of metallic nanoparticles (NPs) has been extensively carried out by using plant extracts (PEs) which have property of stabilizers/ emulsifiers. To our knowledge, there is no comprehensive study on applying a green approach using PEs for fabrication of biodegradable PLA NPs. Conventional methods rely on molecules like polyvinyl alcohol, polyethylene glycol, D-alpha-tocopheryl poly(ethylene glycol 1000) succinate as stabilizers/emulsifiers for the synthesis of such biodegradable NPs which are known to be toxic. So, there is urgent need to look for stabilizers which are biogenic and non-toxic. The present study investigated use of PEs as stabilizers/emulsifiers for the fabrication of stable PLA NPs. Synthesized PLA NPs through this green process were explored for controlled release of the well known antioxidant molecule quercetin. Methodology/Principal Findings Stable PLA NPs were synthesized using leaf extracts of medicinally important plants like Syzygium cumini (1), Bauhinia variegata (2), Cedrus deodara (3), Lonicera japonica (4) and Eleaocarpus sphaericus (5). Small and uniformly distributed NPs in the size range 70±30 nm to 143±36 nm were formed with these PEs. To explore such NPs for drugs/ small molecules delivery, we have successfully encapsulated quercetin a lipophilic molecule on a most uniformly distributed PLA-4 NPs synthesized using Lonicera japonica leaf extract. Quercetin loaded PLA-4 NPs were observed for slow and sustained release of quercetin molecule. Conclusions This green approach based on PEs mediated synthesis of stable PLA NPs pave the way for encapsulating drug/small molecules, nutraceuticals and other bioactive ingredients for safer cellular uptake, biodistribution and targeted delivery. Hence, such PEs synthesized PLA NPs would be useful to enhance the therapeutic efficacy of encapsulated small molecules/drugs. Furthermore, different types of plants can be explored for the synthesis of PLA as well as other polymeric NPs of smaller size.
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