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RISS 인기검색어
- 검색키워드
- 저자 : Amit Kumar Garg (검색결과 5 건)
- 무료
- 기관 내 무료
- 유료
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Hybrid Protection and Restoration Mechanism for High Speed Networks
Amit Kumar Garg 보안공학연구지원센터 2014 International Journal of Software Engineering and Vol.8 No.12
This paper highlights network survivable schemes in order to guarantee both protection and restoration in high speed networks. In this paper, a hybrid protection and restoration mechanism has been proposed whose objective is allocating the bandwidth in a way that minimizes the total amount of bandwidth used for working and protection paths. In the proposed mechanism, path-based protection has been considered because it yields lower overhead and is also suitable for global optimization where, in case of a single link failure, all the flows utilizing the failed link are re-routed to a pre-computed set of paths. The simulation results demonstrate that proposed mechanism is much more efficient as it provides better quality of services (QoS) in terms of network resource utilization, blocking probability etc. as compared to conventional protection and restoration schemes. The proposed mechanism seems to quantify not only the capacity savings but also offers an attractive combination of features, with both ring like speed and mesh-like efficiency.
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Nonstationary-Epileptic-Spike Detection Algorithm in EEG Signal using SNEO
Amit Kumar Kohli,Harish Kumar Garg 대한의용생체공학회 2013 Biomedical Engineering Letters (BMEL) Vol.3 No.2
Purpose This correspondence presents the evaluation of nonstationary epileptic spike (ES) detection algorithm in the electroencephalogram (EEG) signal using the smoothed nonlinear energy operator (SNEO) based on the different time-domain window functions. However, the incorporation of adaptive threshold determination procedure enhances the performance of proposed ES detector. Methods The detection procedure exploits the fact that the presence of instantaneous ES corresponds to the high instantaneous energy content at the high frequencies. In addition to the stochastic amplitude, sign and the location of appearance of triangular spikes in the synthetic EEG signal,its base-width is also considered to be variable for the nonstationary analysis. The five pairs of EEG signals,obtained from electrodes placed on the left and right frontal cortex of male adult WAG/Rij rats, are used for the testing of proposed adaptive scheme in the real-time environment,which is a genetic animal model of human epilepsy. Results The simulation results are presented to demonstrate that the choice of window function plays a significant role in the efficient detection of ESs. The computational complexity is found to be in trade-off relationship with the detection accuracy of algorithm. Conclusions It may be inferred that the real-time EEG signals (rat data) can be processed and analyzed using the proposed adaptive scheme for the ES detection, which supersedes the conventional techniques.
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Photovoltaic Review of all Generations: Environmental Impact and Its Market Potential
Rashmi Chawla,Poonam Singhal,Amit Kumar Garg 한국전기전자재료학회 2020 Transactions on Electrical and Electronic Material Vol.21 No.5
With the technology and innovation rising at its peak, the demand for energy has increased exponentially. To cater this, researchers are persistently exploring ways to fulfi l this defi cit between demand and supply. One of the feasible solutions is the use of energy from renewable resources such as Solar Energy due to its abundance availability and easy accessibility. Seeing it’s trans formative potential to address growing concerns about environment, pollution and sustainable energy integration,there is an intemperate research going on in developing highly effi cient Photovoltaic Cells (PVC). The PVC’s are eff ectuated to convert solar energy from the sunlight directly to electrical energy. Furthermore, the PVC has gone through various generations with the aim to optimise its cost/watt of delivered solar electricity and effi ciency of solar cell. This paper is an eff ort to compare all the generations which PVC has undergone and the recent advancements in this area. The results of this research study will be fruitful for researchers working in this direction.
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Career Selective Si Solar Cells: Modelling and Performance Metrics Evaluation
Rashmi Chawla,Poonam Singhal,Amit Kumar Garg 한국전기전자재료학회 2021 Transactions on Electrical and Electronic Material Vol.22 No.5
Silicon (Si) junctionless solar Photo Voltaic Cells (PVCs) with semiconducting carrier selective blocking layer can modify output efficiency of solar cell. In this research work, we have proposed use of both electron–hole selective layer in Si solar cell with SILVACO simulation. This paper simulates and evaluates two possible electron-selective oxides (TiO2 and ZnO) and two possible hole-selective oxides (CuAlO2 and NiO). The results in terms of solar performance metric is compared and further TiO2 and NiO as carrier selective layers are proposed. The simulation results suggest the fermi level pinning on the device as a reason for increase in output efficiency. This research work comprehends a considerable understanding to band-engineer selective contact semiconducting oxide Si junctionless solar cell device. The performance parameters with Jsc = 10.08 mA/cm 2 , Voc = 2.69 V, fi ll factor (FF) = 99.8% and conversion efficiency of 27.09% (1 sun) are obtained underAM1.5G illumination.
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