Time filter

Source Type

Bangalore, India

Sumathi T.,BNM Institute of Technology | Sundaram P.S.,TUV Rheinland India Pvt. Ltd. | Chandramohan G.,AVVM Sri Pushpam College
Arabian Journal of Chemistry | Year: 2011

The kinetics and mechanism of Ag(I)-catalyzed oxidation of l-alanine by cerium (IV) in sulfuric acid media have been investigated by titrimetric technique of redox in the temperature range of 298-313K. It is found that the reaction is of first order with respect to Ce(IV) and l-alanine, and it is of a positive fractional order with respect to Ag(I). It is found that the pseudo first order ([l-alanine]≫[Ce(IV)]≫[Ag(I)]) rate constant k' increases with the increase of [H+]. The major oxidation product of alanine has been identified as acetaldehyde by an 1H NMR and IR spectroscopy. Under the experimental conditions, the kinetically active species has been found to be Ce4+. Under nitrogen atmosphere, the reaction system can initiate the polymerization of acrylonitrile, indicating generation of free radicals. On the basis of the experimental results, a suitable mechanism has been proposed. The rate constants of the rate-determining step together with the activation parameters were evaluated. © 2010.

Krishna H.A.,Satellite Center | Misra N.K.,Satellite Center | Suresh M.S.,BNM Institute of Technology
IEEE Transactions on Aerospace and Electronic Systems | Year: 2011

Spacecrafts in geostationary Earth orbit and low Earth polar orbit experience temperatures in the range of -180°C to 80°C [1, 2] depending on the orbit. Solar cells are mounted on light weight aluminum honeycomb panels which are deployed and Sun pointed in on-orbit operation. Solar panels charge batteries and supply power to the satellite during sunlit period and batteries supply power during eclipse period. The open circuit voltage (Voc) of a silicon solar cell varies by about -2.5 mV/°C [3] and temperature can bring about a dramatic change in the solar cell characteristic, particularly with reference to operating voltage. PRT mounted on the rare of the solar panel measure the temperature of the solar panel. This introduces errors due to temperature gradients between solar cell blanket and solar panel and slow transient response of PRTs. A method of using solar cell capacitance to measure the temperature of solar cell blanket is proposed. This removes error due to location and transient response of PRT. Solar cell as a temperature sensor for measurement of temperature is demonstrated. © 2006 IEEE.

Ramamurthy T.J.,BNM Institute of Technology
Lecture Notes in Electrical Engineering | Year: 2013

As BNM Institute of Technology, Bangalore enters its thirteenth year, I feel privileged to be part of every stage of its growth since its inception. In this article, I have tried to recall my presence as a part of BNMIT's growing years. © 2013 Springer.

Chakravarthi V.S.,BNM Institute of Technology
Lecture Notes in Electrical Engineering | Year: 2013

SMART homes are soon going to be the reality with all the necessary technology available and changing lifestyle demanding it. Today, internet is being used for range of applications from banking needs to entertainment to day planners to appliance control. With internet capabilities and superior processing power of VLSI technology coupled with availability of wide range of sensors, it is no more a dream to have a SMART Home. This paper discussed the hardware and software technologies which can be used to realize the SMART Home. SMART Home hardware is defined as a Platform SoC identifying the specific differentiators which makes it a preferred candidate for such applications. Proposed PSoC is required to support many interfaces, standards to cater to wider functions of a Home to name a few Entertainments, healthcare, appliance control, environmental control, etc. User-friendly GUI, low power, and faster response will be the major differentiators of such platform SoCs. This paper attempts to identify the functional requirements of a basic Platform SOC and gives insight into PSoC architecture for SMART Home solution. © 2013 Springer.

Prasad B.G.,BNM Institute of Technology | Krishna A.N.,SJB Institute of Technology
ICECT 2011 - 2011 3rd International Conference on Electronics Computer Technology | Year: 2011

Advances in medical imaging technology and computer science have greatly enhanced interpretation of medical images, and contributed to early diagnosis. The development of Computer Aided Diagnosis (CAD) systems for assisting the physicians for making better decisions has attracted lot of interest in the recent past. CBIR-based CAD systems that use CBIR to search for clinically relevant and visually similar images (regions) depicting suspicious lesions have been attracting research interest. Content-based image retrieval (CBIR) of medical images is an important alternate and complement to traditional text-based retrieval using keywords. We have implemented CBIR system based on the effective use of texture information within the images. Two different statistical methods implemented are: Haralick Statistical Co-occurrence Matrix and Tamura method. To speed up the search process, selected features are extracted and indexed using hash structure. Euclidean distance measure is used for similarity measurement. Both the methods are compared based on precision and recall. Tamura features are found to provide better retrieval results for CT scan brain images. © 2011 IEEE.

Discover hidden collaborations