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61.
T.V. Sreenivas 《Signal processing》1984,6(2):135-142
Although simulation, in general, is a very widely used technique, simulation of a complex processor as a tool for v microprogram development is only of recent origin. A signal processor has, quite often, special features like multiple storage and computational modules functioning in parallel, real-time devices, etc. The problems connected with simulating these features are discussed here in the context of a specific architecture. An interactive debugger, incorporated as a special feature of the simulator is also presented, which is an invaluable aid in microprogram debugging. 相似文献
62.
With the use of helical coils in steam generators of LMFBR, the problems associated with dryout are receiving wide attention. This paper describes the results obtained at the CEN-Grenoble with a freon-12 loop with electrical heating. The influence of pressure, coil diameter, mass flux and heat flux is analysed qualitatively, and a first attempt at correlating the results is presented. 相似文献
63.
Liu S. Lamp D. Gangopadhyay S. Sreenivas G. Ang S.S. Naseem H.A. 《Electron Device Letters, IEEE》1998,19(9):317-319
We report the development of a new metal-to-metal antifuse with amorphous carbon as the dielectric. Amorphous carbon antifuses have several characteristics making them superior to amorphous silicon antifuses, including lower values of OFF-state leakage current, ON-state resistance, dielectric constant, and breakdown voltage. Most importantly, amorphous carbon antifuses do not show ON-OFF switching, which is observed in amorphous silicon antifuses. A new model is proposed to explain the breakdown mechanism and ON-state reliability of amorphous carbon antifuses 相似文献
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65.
Suresh Babu Nallapati Bagineni Prasad B. Yogi Sreenivas Rajnikanth Sunke Y. Poornachandra C. Ganesh Kumar B. Sridhar S. Shivashankar K. Mukkanti Manojit Pal 《Advanced Synthesis \u0026amp; Catalysis》2016,358(21):3387-3393
The formation of an amide bond via incorporation of two isocyanide units during a palladium‐catalyzed construction of the indoloquinoline ring afforded N‐substituted 6H‐indolo[2,3‐b]quinoline‐11‐carboxamides as new cytotoxic agents. The solvent and base play a key role in the selective and unprecedented synthesis of this class of amides.
66.
In recent work, the error latching probability due to an SET is calculated for a single observable point, and this help in hardening the design. This paper utilizes a recently proposed probabilistic framework for SET propagation in order to diagnose the location and time of strike based on errors observed at multiple points. The proposed diagnostic framework requires a new approach to calculate the probability for SET propagation to multiple non-independent variables. It is shown experimentally that error appearances at multiple observable points help in SET diagnosis. The time performance of the proposed diagnostic framework is compared against an alternative implementation. This is particularly important in on-line diagnosis. 相似文献
67.
Neeraj Jaggi Sreenivas Madakasira Sandeep Reddy Mereddy Ravi Pendse 《Ad hoc Networks》2013,11(4):1405-1420
Upcoming sensor networks would be deployed with sensing devices with energy harvesting capabilities from renewable energy sources such as solar power. A key research question in such sensor systems is to maximize the asymptotic event detection probability achieved in the system, in the presence of energy constraints and uncertainties. This paper focuses on the design of adaptive algorithms for sensor activation in the presence of uncertainty in the event phenomena. Based upon the ideas from increase/decrease algorithms used in TCP congestion avoidance, we design an online and adaptive activation algorithm that varies the subsequent sleep interval according to additive increase and multiplicative decrease depending upon the sensor’s current energy level. In addition, the proposed algorithm does not depend on global system parameters, or on the degree of event correlations, and hence can easily be deployed in practical scenarios. We analyze the performance of proposed algorithm for a single sensor scenario using Markov chains, and show that the proposed algorithm achieves near-optimal performance. Through extensive simulations, we demonstrate that the proposed algorithm not only achieves near-optimal performance, but also exhibits more stability with respect to sensor’s energy level and sleep interval variations. We validate the applicability of our proposed algorithm in the presence of multiple sensors and multiple event processes through simulations. 相似文献
68.
Srinivas Appari Vinod M. Janardhanan Ranjit Bauri Sreenivas Jayanti 《International Journal of Hydrogen Energy》2014
This paper presents detailed study of biogas reforming. Model biogas with different levels of H2S is subjected to reforming reaction over supported Ni catalyst in a fixed bed reactor at 700 °C and 800 °C. In order to understand the poisoning effects of H2S the reactions have been initially carried out without H2S in the feed stream. Three different H2S concentrations (20, 50 and 100 ppm) have been considered in the study. The H2O to CH4 ratio is maintained in such as way that CO2 also participates in the reforming reaction. After performing the poisoning studies, regeneration of the catalyst has been studied using three different techniques i) removal of H2S from the feed stream ii) temperature enhancement and iii) steam treatment. Poisoning at low temperature is not recoverable just by removal of H2S from the feed stream. However, poisoning at high temperature is easily reversed just by removal of H2S from the feed stream. Unlike some previous reports by Li et al. (2010) and Rostrup-nielsen (1971) [1,2], catalyst regeneration is achieved in shorter time frames for all the regeneration techniques attempted. 相似文献
69.
70.
R. S. Dwivedi K. Sreenivas K. V. Ramana 《International journal of remote sensing》2013,34(8):1589-1599
Waterlogging and subsequent salinization and/or alkalization are the major land degradation processes in irrigated agricultural lands of arid and semiarid regions. The use of spaceborne multispectral data has been shown to have potential for deriving information on the nature, extent, spatial distribution and magnitude of various degraded lands. Indian Remote Sensing Satellite (IRS-1B) Linear Imaging Self-scanning Sensor (LISS-I) and Landsat Thematic Mapper (TM) data in the form of standard false colour composite (FCC) prints at 1 100000 scale covering Nagarjunsagar Left Bank canal command area in Andhra Pradesh, southern India, have been used to delineate waterlogged areas and salt-affected soils through a systematic visual interpretation approach. Waterlogged areas are estimated at 1380ha whereas salt-affected soils of mostly saline-sodic nature cover 6830ha of the command area. The methodology used and results are described in detail. 相似文献