Time filter

Source Type

Upadhyay S.,Sarvottam Institute of Technology and Management | Chaurasia B.K.,Institute of Technology and Management
Lecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering, LNICST | Year: 2012

A mobile ad hoc network (MANET) consists of a collection of wireless mobile nodes that forms a temporary network without having any fixed infrastructure or centralized administration. MANET is infrastructure-less, lack of centralized monitoring and dynamic changing network topology. MANET is highly vulnerable to attack due to open error prone shared wireless medium. In this paper, we proposed an algorithm for avoiding and preventing the wormhole attacks in MANET using statistical analysis approach. Simulation and results show that efficacy of proposed algorithm and the proposed heuristics provides better security and performance than conventional AODV in the presence of wormhole attack. © Institute for Computer Sciences, Social Informatics and Telecommunications Engineering 2012.


Akashe S.,Institute of Technology and Management | Sharma S.,Thapar University
Journal of Computational and Theoretical Nanoscience | Year: 2013

This Paper aims to reduce the read time as well as to increase the SNM and stability of the SRAM cell during read operation. A different 7T cell with single bit line is proposed to increase the SNM and stability within the memory core. A 4 × 4 array is constructed using single ended 7T cell to show the feasibility of the proposed SRAM cell. A 16 Bit SRAM operating at 1 v supply voltage is demonstrated in 45 nm CMOS process. Its total power consumption is reduced by more than 90% of the conventional design. This 7T cell has lower leakage current due to single bit line and transmission gate at feedback. As a result it is suitable for low power consumption application especially battery operated gadgets. Copyright © 2013 American Scientific Publishers All rights reserved.


Khandelwal S.,Institute of Technology and Management | Akashe S.,Institute of Technology and Management | Sharma S.,Thapar University
Journal of Computational and Theoretical Nanoscience | Year: 2012

In low power design, it is difficult to suppress leakage current. In memory, leakage power reduction during data-retention in SRAM standby is often addressed by reducing the supply voltage. Each SRAM cell has a minimum supply voltage parameter called the data-retention voltage (DRV), above which the stored bit can be retained reliably. As supply voltage is lowered, leakage power reduces. This paper models the DRV of SRAM module, and analyzes the SRAM cell stability when VDD approaches DRV. DRV of the 4 KB SRAM module in a 0.13 mm technology ranges between 60 and 390 mv. Copyright © 2012 American Scientific Publishers.


Sharma S.D.,Institute of Technology and Management | Shakya K.,Samrat Ashok Technological Institute | Sharma S.N.,Samrat Ashok Technological Institute
2011 International Conference on Computer, Communication and Electrical Technology, ICCCET 2011 | Year: 2011

Identification of protein coding regions (exons) in eukaryotic genomic sequences is an active area of research at present. Mapping of symbolic genomic sequences to numeric sequences is the first step required for processing them using digital signal processing (DSP) tools. For DFT-based methods paired numeric and frequency of nucleotide are reported as the best mapping schemes. In this work performance of a wavelet-based method for exon detection is evaluated with different symbolic-to-numeric representations. Optimum performance is obtained by using Z-Curve for DNA mapping. For performance evaluation Receiver Operating Characteristics (ROC) curves are used and the study is conducted on HMR195 data set. This work in general highlights that exon prediction accuracy and computational complexity of the DSP-based algorithms is dependent on the scheme used to map DNA nucleotides into numerical sequences, and so the optimum performance of any algorithm can only be attained with a particular mapping scheme. © 2011 IEEE.


Dimri M.C.,Estonian National Institute of Chemical Physics and Biophysics | Kashyap S.C.,Indian Institute of Technology Delhi | Dube D.C.,Institute of Technology and Management
Physica Status Solidi (A) Applications and Materials Science | Year: 2010

NiCuZn ferrite nanopowders and polycrystalline bulk samples were prepared by wet chemical (citrate) method followed by sintering at temperatures lower than those for conventional solid-state ceramic route. The citrate method results in nano-powders. The addition of copper promotes sintering, and results in grain-growth during sintering, even at a low temperature. Composite thick films of desired thickness were prepared by die casting the ferrite mixed with a polymer in different weight ratios. The dielectric properties of the polycrystalline NiCuZn ferrite and their composite thick films were investigated at radio- and X-band microwave frequencies. Dielectric and magnetic losses are estimated to be appreciably low, even at microwave frequencies. © 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.


Arora M.,JSS Academy of Technical Education | Biswas R.,Institute of Technology and Management
Proceedings - 2010 3rd IEEE International Conference on Computer Science and Information Technology, ICCSIT 2010 | Year: 2010

In this paper, we have we have introduced a new intelligent soft-computing method of neutrosophic search with ranks and a new neutrosophic rank sets for neutrosophic relational data model (NRDM). Essentially the data and documents on the Web are heterogeneous; inconsistency is unavoidable in Web mining. Using the presentation and reasoning method of our data model, it is easier to capture imperfect information on the Web which will provide more potentially valued-added information. In Bio-informatics there is a proliferation of data sources. Each research group and each new experimental technique seems to generate yet another source of valuable data. But these data can be incomplete and imprecise, and even inconsistent. We could not simply throw away one data in favor of other data. So now we can represent and extract useful information from these data as a challenge. Thus it is a kind of an intelligent search for match in order to answer imprecise queries of the lay users. Our method, being an intelligent soft-computing method, will support the users to make and find the answers to their queries without iteratively refining them by trial and error. This important issue of closeness cannot be addressed with the crisp mathematics. That is why we have used the Neutrosophic tools. Neutrosophic-search method could be easily incorporated in the existing commercial query languages of DBMS to serve the lay users better. So in this Paper Authors are suggesting NRDM and Rank Sets to solve the imprecise query based on Rank Neutrosophic search which is a combination - Neutrosophic Proximity search and α-Neutrosophic-equality Search. © 2010 IEEE.


Khandelwal S.,Institute of Technology and Management | Akashe S.,Institute of Technology and Management
Journal of Computational and Theoretical Nanoscience | Year: 2013

Low power design is the industry buzzword these days in present chip design technologies. CMOS technology continues to drive the reduction in switching delay and power while improving area density. However, the transistor miniaturization also introduces many new challenges in Very Large Integrated (VLSI) circuit design, such as sensitivity to process variations and increasing transistor leakage. This paper focus is to reduce leakage power consumption of an 8 kbit SRAM by employing techniques like power gating. The main technique used in power gating is the use of sleep transistor. In our design we have chosen a stack-based implementation. In this paper, leakage power is measured by simulating a 1 Kb SRAM array. Leakage power is measured when each SRAM cell holds a logical '1' or '0'. Simulations were done in CADENCE using 45 nm Technology. Leakage power of 10T SRAM cell (Sleepy) = 155.4 nW. Leakage power of 6T SRAM cell (Sleepy) = 375.3 nW. Copyright © 2013 American Scientific Publishers.


Gopaliya M.K.,Institute of Technology and Management | Goel P.,Institute of Technology and Management | Prashar S.,Institute of Technology and Management | Dutt A.,Institute of Technology and Management
Computers and Fluids | Year: 2011

This paper presents the effect of combined horizontal (90°/90° turn) and vertical offsets (inlet and outlet in two different horizontal planes) on S-shaped diffusers, one with rectangular inlet (AS=2) and rectangular outlet and other with rectangular inlet (AS=2) and semi-circular outlet with area ratio 2 in both the cases having downstream settling length of 50mm at Reynolds number 1.37×10 5. A computer program based on finite volume technique, using standard k-ε turbulence model, has been adopted and modified to predict the flow. The results obtained from this study indicate reduced outlet pressure recovery accompanied with increase in non-uniformity in flow at the exit contributed by the offset effect. The comparison of pressure recovery of the extreme vertical offset value i.e. 1B in case of rectangular outlet diffuser and 1D in case of semi-circular outlet diffuser with zero vertical offset indicates that there is significant drop of pressure of the order of 14% and 7.3% respectively. Non-uniformity in flow at the outlet also increases from 12% to 32% and 6.4% to 21% in case of S-shaped diffuser with rectangular outlet and S-shaped diffuser with semi-circular outlet respectively, starting from zero vertical offset to extreme vertical offsetting magnitude for the case. This paper also shows that increase in Reynolds number has marginal effect on the outlet pressure recovery for both types of diffuser with all cases of vertical offset. The S-diffuser with semi-circular outlet with 0.25D vertical offsetting only fulfills most of the requirements of the flow diffusion process efficiently and effectively. For other cases, redesigning of geometry is required. © 2010 Elsevier Ltd.


Pandey A.,Institute of Technology and Management | Tripathi P.,Institute of Technology and Management | Pandey R.,Institute of Technology and Management | Srivatava R.,Institute of Technology and Management | Goswami S.,Institute of Technology and Management
Journal of Pharmacy and Bioallied Sciences | Year: 2011

Diabetes mellitus is a metabolic disorder in the endocrine system. This dreadful disease is found in all parts of the world and becoming a serious threat of mankind health. There are lots of chemical agents available to control and to treat diabetic patients, but total recovery from diabetes has not been reported up to this date. In addition to adverse effects, drug treatments are not always satisfactory in maintaining euglycemia and avoiding late stage diabetic complications. Alternative to these synthetic agents, plants provided a potential source of hypoglycemic drugs and are widely used in several traditional systems of medicine to prevent diabetes. Several medicinal plants have been investigated for their beneficial effect in different type of diabetes. Other alternative therapies such as dietary supplements, acupuncture, hydrotherapy, and yoga therapies less likely to have the side effects of conventional approaches for diabetes.


More G.,Institute of Technology and Management
Communications in Computer and Information Science | Year: 2011

This paper presents the universal algorithm for the generation of cyclic code for an n bit binary word. As well as it also provides the algorithm for decrypting the code generated. It is important for the built in self test (BIST) and for memory ROM testing. They are extensively used for encoding and decoding communication channel burst errors. © 2011 Springer-Verlag.

Loading Institute of Technology and Management collaborators
Loading Institute of Technology and Management collaborators