ISSN:2349-2058
S.No. | Title & Authors | Page No | View | ||
1 |
Title : Dimensional And Sensitivity Analysis Of Flat Back Model Authors : Mrs. Smita Mattalwar, Dr. C.N. Sakhale
Abstract : Dimensional analysis and sensitivity analysis conducted on blunt trailing edge airfoil with splitter plates at various angle of attack and velocities provides minimal conclusions on performance of flat back airfoils .The paper contributes ot the study and analysis of the same tested on an educational Low subsonic Wind Tunnel under ambient conditions. Performance through a sweep of angles was needed to determine the behavior of the airfoils at low angle of attack. Dimensional analysis is a practice of checking relations among physical quantities by identifying their dimensions. The sensitivity analysis is the study of how the uncertainty in the output of a mathematical model or system can be apportioned to different sources of uncertainty in its output. It also helps to understand the relationship between input and output variables in the system or model.
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1-4 | |||
2 |
Title : Error Detection in Majority Logic Decoding of Euclidean Geometry Low Density Parity Check (EG-LDPC) Codes Authors : S Sufia Anjum, S Nazneen Shagufa, K Vali Babu
Abstract : In a recent paper, a method was proposed to accelerate the majority logic decoding of difference set low density parity check codes. This is useful as majority logic decoding can be implemented serially with simple hardware but requires a large decoding time. For memory applications, this increases the memory access time. The method detects whether a word has errors in the first iterations of majority logic decoding, and when there are no errors the decoding ends without completing the rest of the iterations. Since most words in a memory will be error-free, the average decoding time is greatly reduced. In this brief, we study the application of a similar technique to a class of Euclidean geometry low density parity check (EG-LDPC) codes that are one step majority logic decodable. The results obtained show that the method is also effective for EG-LDPC codes. Extensive simulation results are given to accurately estimate the probability of error detection for different code sizes and numbers of errors.
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5-9 | |||
3 |
Title : A Description of several levels of database encryption and Encryption Algorithms Authors : Shivnandan Singh, Pratibha Singh, Niranjan Kumar Agri
Abstract : Encryption is the best mechanism to provide security because today security is biggest measure for any system without security we cannot say that a given system is secure or not.
Encryption in database is very important topic in these days because we want to perform query operation on database allow optimized encryption and decryption of data.
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10-11 | |||
4 |
Title : Taxonomy of Various Database Security Technique And Their Analysis Authors : Shivnandan Singh, Pratibha Singh, Neetu Kushwah
Abstract : Security is an important issue in database management system because information stored in a database is very important , very sensitive commodity. So the data base management system need to should be protected from unauthorized access and updates. Database security is the system, processes, and procedures that protect a database from unintended activity. Unintended activity can be categorized as authenticated misuse, malicious attacks or inadvertent mistakes made by authorized individuals or processes It is popular belief that hackers cause most security breaches, but in reality 80% of data loss is to insiders. Database security is the system, processes, and procedures that protect a database from unintended activity. Unintended activity can be categorized as authenticated misuse, malicious attacks or inadvertent mistakes made by authorized individuals or processes. Database security is also a specialty within the broader discipline of computer security.
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12-17 |