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Search Results: 1 - 10 of 21257 matches for " Naveen Kumar "
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'SOCIAL MEDIA: A VIRTUAL GLOBAL COMMUNITY HALL’
NAVEEN KUMAR
Indian Streams Research Journal , 2012,
Abstract: 'Choupal' in villages is a powerful source of entertainment and information. It is a wonderful gift of Indian culture. Today, in the era of digital technology, discussion, debate, constant flow of information, new ocean of knowledge and every common man has got a powerful medium to express his ideas and opinions which is known as Social Media. Social Media is such a digital platform which, through technical medium, providing important opportunity to people for knowledge-creation, participation and sharing knowledge and this social media is playing a role of such a 'Virtual Global Community Hall' whose boundaries are unlimited. The access of The Virtual Digital Hall is not limited to a particular region rather to every human being who in a way or other using internet. Global village is now converting into a Virtual Global Community Hall, a community hall where people may not be present physically but connected to every sphere of the world with the help of 'Key Board' and 'Computer Monitor'. In seconds, information can be transmitted from one corner of the world to other and we can make the world aware of our ideas. Mean to say that we can share our ideas without any hesitation, discuss the issues with people, can discuss socio-state problems for solution on Virtual Global Community Hall. Social Media began to connect friends; today it has connected the whole in a friendly manner. Social Media has opened the doors to the world for social change and is accessible to every corner of the world. Social Media has opened the door for the social change and Social Media has emerged as a powerful medium of social change worldwide.
PASSWORD IN PRACTICE: AN USABILITY SURVEY
Naveen Kumar
Journal of Global Research in Computer Science , 2011,
Abstract: User Authentication is the process of determining whether a user should be authorized to access to a particular system or resource. Alphanumeric passwords are most common mechanism for authorizing computer users, even though it is well known that users generally choose passwords that are vulnerable to dictionary attacks, brute force attack and guessing attacks. Until recent years, the security problem has been formulated as a scientific problem. However, it is now extensively accepted that security is also a human computer interaction (HCI) problem. Most security mechanisms cannot be effective without taking into account, the user. HCI matters in two ways. One is the usability of the security systems themselves and another is the interaction of the security systems with user practices and motivations. We have studied the usability of alphanumeric passwords, and found that they are more difficult for people to remember and the consequence is that one has to write them down. We have discussed the usability versus security tradeoffs and found different inherent weaknesses in alphanumeric passwords. We have also discussed the alternative solutions those can be used instead of alphanumeric password.
A STUDY OF GENETIC ALGORITHM TO SOLVE TRAVELLING SALESMAN PROBLEM
Naveen Kumar
Journal of Global Research in Computer Science , 2012,
Abstract: This paper presents the literature survey review of Travelling Salesman Problem (TSP). TSP belongs to the category of NP-hard problems. A various number of methods have been designed to solve this problem. Genetic Algorithm is one of the best methods which is used to solve various NP-hard problem such as TSP. The natural evolution process is always used by genetic Algorithm to solve the problems. This paper presents a critical survey to solve TSP problem using genetic algorithm methods that are proposed by researchers
PASSWORD IN PRACTICE: AN USABILITY SURVEY
Naveen Kumar
Journal of Global Research in Computer Science , 2011,
Abstract: User Authentication is the process of determining whether a user should be authorized to access to a particular system or resource. Alphanumeric passwords are most common mechanism for authorizing computer users, even though it is well known that users generally choose passwords that are vulnerable to dictionary attacks, brute force attack and guessing attacks. Until recent years, the security problem has been formulated as a scientific problem. However, it is now extensively accepted that security is also a human computer interaction (HCI) problem. Most security mechanisms cannot be effective without taking into account, the user. HCI matters in two ways. One is the usability of the security systems themselves and another is the interaction of the security systems with user practices and motivations. We have studied the usability of alphanumeric passwords, and found that they are more difficult for people to remember and the consequence is that one has to write them down. We have discussed the usability versus security tradeoffs and found different inherent weaknesses in alphanumeric passwords. We have also discussed the alternative solutions those can be used instead of alphanumeric password.
Angiosarcoma of Maxillary Sinus: A Case Report  [PDF]
D. S. Deenadayal, B. Naveen Kumar, B. Hemanth Kumar
International Journal of Otolaryngology and Head & Neck Surgery (IJOHNS) , 2012, DOI: 10.4236/ijohns.2012.13017
Abstract: Purpose: To describe a rare malignancy involving the sinonasal cavities. To discuss the clinical, diagnostic, and treatment modalities. Study Design: A case report including histopathological, radiological analysis and review of literature. Method: A case report is described from a tertiary care centre. Histopathological and radiological details are reviewed. Results: This case report presents a 29 year old male with 3 days history of bleeding from the left nostril, blood stained saliva with post nasal discharge and head ache. Biopsy demonstrated poorly differentiated Angiosarcoma. On immune stains the tumor cells showed diffuse strong cytoplasmic membrane positivity with CD 31 and few cells are positive for CD34. FLI-1 is also positive. Conclusion: Angiosarcoma is a rare malignancy involving the sinonasal cavities. Multidisciplinary approach is essential to obtain clear diagnoses and appropriate treatment plans.
Area Efficient Sparse Modulo 2n - 3 Adder  [PDF]
Ritesh Kumar Jaiswal, Chatla Naveen Kumar, Ram Awadh Mishra
Circuits and Systems (CS) , 2016, DOI: 10.4236/cs.2016.712333
Abstract: This paper presents area efficient architecture of modulo 2n - 3 adder. Modulo adder is one of the main components for the implementation of residue number system (RNS) based applications. The proposed modulo 2n - 3 adder is implemented effectively, which utilizes parallel prefix and sparse concepts. The carries of some bits are calculated with the help of sparse approach in log2n prefix levels. This scheme is implemented with the help of idempotency property of the parallel prefix carry operator and its consistency. Parallel prefix structure contributes to fast carry computation. This will reduce area as well as routing complexity efficiently. The presented adder has double representation of residues in {0, 1, and 2}. The proposed adder offers significant reduction in area as the number of bits increases.
A Graphical Method for Model Selection
Naveen Kumar Boiroju
Pakistan Journal of Statistics and Operation Research , 2012, DOI: 10.1234/pjsor.v8i4.427
Abstract: In this paper, we present a graphical method for selection of the model among the many competitive models. The proposed method not only selects the model but also tests the equal prediction accuracy of the models.
Web Data Mining Using FiVaTech
V Naveen Kumar
International Journal of Computer and Distributed System , 2012,
Abstract: In this paper, we proposed a new approach, called FiVaTech for the problem of Web data extraction. FiVaTech is a page-level data extraction system which deduces the data schema and templates for the input pages generated from a CGI program. FiVaTech uses tree templates to model the generation of dynamic Web pages. FiVaTech can deduce the schema and templates for each individual Deep Web site, which contains either singleton or multiple data records in one Web page. FiVaTech applies tree matching, tree alignment, and mining techniques to achieve the challenging task. The experiments show an encouraging result for the test pages used in many state-of-the-art Web data extraction works.
New class of self-similar solutions for vacuum plasma expansion admitting mono-energetic ion spectra
Naveen Kumar,Alexander Pukhov
Physics , 2007,
Abstract: We report a new class of self-similar solutions for plasma expanding into vacuum that allows for quasi-monoenergetic ion spectra. A simple analytical model takes into account externally controlled time-dependent temperature of the hot electrons. When the laser temporal profile is tailored properly, the quasi-neutral self-similar expansion of the plasma results in ion concentration in the phase-space at a particular velocity thus producing a quasi-monoenergetic spectrum. We prove this analytical prediction using a 1D partice-in-cell (PIC) simulation where the time-dependent plasma temperature is controlled by two laser pulses shot at a foil at a suitable time delay.
Structural and Optical Properties of Li+: PVP & Ag+: PVP Polymer Films  [PDF]
Kothapalle Sivaiah, Koramala Naveen Kumar, V. Naresh, Srinivasa Buddhudu
Materials Sciences and Applications (MSA) , 2011, DOI: 10.4236/msa.2011.211225
Abstract: PVP polymers containing Li+ or Ag+ Ions have been synthesized in good stability and transparency by using the solution casting method. Their structural, optical, thermal and electrical properties have been investigated from the measurement of XRD, FTIR, SEM, EDAX, optical absorption spectra, TG-DTA profiles and impedance spectral features in order to evaluate their potentialities for their use in electrochemical display device applications.
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