On chip implement of deadlock avoidance in wormhole networks

This thesis gives a detailed description of the Application Specific Integrated Circuit (ASIC) design to avoid deadlocks in Wormhole Networks. Deadlock avoidance is the most critical issue while considering wormhole networks and should be avoided by any routing protocol and algorithm. A novel architecture for the Turn Prohibition Based Routing (TPBR) protocol has been proved to be efficient and was developed as a part of this work. This architecture for implementing the algorithm is divided into three parts. The first part determines the order of selccuon of the nodes, in the network to run the algorithm. The second part deals with the prohibition of the turns through the node which might possibly create a deadlock. The third part constructs a routing table, which will have the route from a source to a destination, considering the prohibited, turns into account. A VHDL model was developed and simulated using IEEE numeric-std package for this architecture. This model was synthesized with Cadence tools and the post synthesis simulations verified the functionality of the architecture. The physical design was created using the standard gate cell libraries and implemented in 0.35-micron CMOS technology

SAODV versus TAODV Technique using MANET routing Security

Recent technology SAODV (Secure ADHOC on Demand Distance Vector) uses Cryptography to send the data from one node to another. The problem with SAODV is, it is required to enter the 8-bit security key to send and receive data. If the number of present in the network are more, the SAODV protocol fails to deliver the data in time as the 8-bit security key has to be entered again and again. Therefore this demands a study where we are designing a Protocol TAODV in which all the nodes present in the network should get registered. The use of 8-bit security key is not required as in our study we are designing a Trusted Centre which provides security for the nodes connected to it

Naïve Bayes Model for Analysis of Voting Rate Failure in Election System

These days several exercises are striking the engineering perspectives on non-engineering domain and it is major challenging too for the engineering community. One such non-engineering domain is prediction of the results in election system. So many factors like literacy, rainfall, population and so on may affect the results in election systems. Certainly there are some parameters which are relatively dependent on each other. In this connection, this paper tried to design a probabilistic model to analyze failure voting rates in election system by involving one of the strongest baye’s model called as Naïve Bayes Model

A nonradioactive restriction enzyme-mediated assay to detect DNA repair by Fe(II)/2-oxoglutarate-dependent dioxygenase

The Escherichia coli DNA repair enzyme AlkB belongs to the Fe(II)/2-oxoglutarate-dependent dioxygenase family. It removes methyl groups from 1-methyl adenine (1-meA) and 3-methyl cytosine (3-meC) lesions present in single-stranded DNA by oxidative decarboxylation. In the current article, we describe an in vitro assay that permits rapid detection of AlkB activity. To achieve this, we generated methylated oligonucleotide using methyl methanesulfonate and then monitored DNA repair using a methylation-sensitive restriction enzyme and novel agarose gel electrophoresis system capable of resolving small oligonucleotides. Our approach overcomes several drawbacks of NAD+-dependent formaldehyde dehydrogenase-coupled assay and radioisotope-based assay for determining AlkB DNA repair activity

Book review: the reflective teacher - case studies of action research

The author, Neeraja Raghavan, has for several years now pursued her passion for education and has done extensive work in teaching children and in teacher education. In this, her latest, book, she has systematically captured all the experiences and learnings that emerged during the five months (August-December 2013) of action research taken up by eight teachers and the Principal of Azim Premji School in Dineshpur, Uttarakhand. As principal investigator, she anchored this action research project, which was facilitated by members from Azim Premji Foundation

Photoelastic Investigation of Turbine Rotor Blade Shrouds

This paper deals with the photoelastic stress analysis carried out to investigate the premature failure of low pressure turbine rotor blade shrouds of an experimental gas turbine. Stress distribution at the shroud aerofoil interface was studied for the original rectangular shroud geometry by stress freezing the photoelastic model blades under rotating conditions. The combined influence of taper shroud geometry and larger fillet radius in mitigating the shroud stress is studied by the three dimensional photoelastic technique and an optimised shroud geometry subject to the stress requirements of blade material is suggested

Teachers can make or mar

I studied in a private English-medium co-ed School in Dhar wad, Karnataka from Kindergarten to the 10th standard. As I moved to eighth standard, A and B sections were combined to form one section. Therefore, the teacher-pupil ratio our Class became 1:56. Our School started in a decades-old girls' Kannada-medium high school building. I remember moving to our own school building in the same campus in the 8th Standard. Two combinations were available to the eighth standard students and those, who chose Sanskrit as the first language would have English as the second language and Kannada as the third language. The students who chose English as the first language, would have Kannada as the second language and Hindi as the third language. For all the other subjects namely Mathematics, Science and Social Studies, we would sit together in one class. Our school had several factors conducive for education such as sufficient number of teachers, well-ventilated classrooms, a big playground, open spaces, toilets and drinking water facility. Our school was also close to home and the fees were affordabl