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Walia H.,Greater Noida Institute of Technology | Katiyar S.,Galgotias University
Proceedings of the 2015 International Conference on Green Computing and Internet of Things, ICGCIoT 2015 | Year: 2015

Today each and every country is facing the challenge to keep up its competitive advantage vis a vis other countries. They have realized the importance of innovation, research and development as necessary tools to keep them competitive and build their leadership position. Engineers play a pivotal role in building such sustainable competitive advantage for the country by providing solutions to the various technical and social issues. There is a strong need in country like India to build engineering pool with high caliber of Engineering attitude and aptitude. This pool will provide the requisite capability to create innovative solutions in various technical fields. The challenge being faced by academic institutes is how to provide engineering educations which will enable them to build such pool. The convergence of information and communication technologies (ICT) is providing such enabling platform for these institutes. They can build collaborative learning environment and link it to the education grid for engineers. This paper focuses on how an e-learning grid can be created and collaborative learning environment can be established in the various engineering collages and ICT can be leveraged which will facilitate in building research oriented mindset and high caliber engineers with high aptitude to find solutions to problems. This paper will provide the guidelines on what engineering institutes should do to leverage the ICT technologies and how they can build collaborative learning environment and contribute to the national engineering e-learning grid. © 2015 IEEE. Source

Gupta V.K.,IMS Engineering College | Chandra M.,Birla Institute of Technology | Sharan S.N.,Greater Noida Institute of Technology
Research Journal of Applied Sciences, Engineering and Technology | Year: 2012

In this study RLS algorithm with Double Log-Sigmoid function (DSRLS) is proposed to minimize the effect of noise from speech signals. The performance of DSRLS is compared with the performance of RLS and RLS algorithm with Log-Sigmoid function (SRLS). Experiments were performed on noisy data which was prepared by adding machine gun, F16 and speech noise to clean speech samples at -5dB, 0dB, 5dB and 10dB SNR levels. The simulation results show that both SRLS and DSRLS perform better than RLS in terms of SNR improvement. However, DSRLS performs best in terms of SNR improvement with MSE decrement. © Maxwell Scientific Organization, 2012. Source

Gupta V.K.,IMS Engineering College | Chandra M.,Birla Institute of Technology | Sharan S.N.,Greater Noida Institute of Technology
Radioengineering | Year: 2013

In this paper, acoustic echo cancellation with doubletalk detection system for a hand-free telecommunication system is implemented using Matlab. Here adaptive noise canceller with blind source separation (ANC-BSS) system is proposed to remove both background noise and far-end speaker echo signal in presence of double-talk. During the absence of double-talk, far-end speaker echo signal is cancelled by adaptive echo canceller. Both adaptive noise canceller and adaptive echo canceller are implemented using LMS, NLMS, VSLMS and VSNLMS algorithms. The normalized cross-correlation method is used for double-talk detection. VSNLMS has shown its superiority over all other algorithms both for double-talk and in absence of double-talk. During the absence of double-talk it shows its superiority in terms of increment in ERLE and decrement in misalignment. In presence of double-talk, it shows improvement in SNR of near-end speaker signal. Source

Sharma M.K.,Jiwaji University | Sharma A.K.,Greater Noida Institute of Technology | Sharma M.,Jiwaji University | Chandra S.,Lovely Professional University | Chandra S.,TU Berlin
New Astronomy | Year: 2016

The glycolaldehyde is detected towards the Galactic center source Sgr B2(N) and towards the massive star-forming region G31.41+0.31 through b-type transitions. The levels for b-type transitions can be classified into two groups: (i) with ka+kc= odd (set I) and (ii) with ka+kc= even (set II). For each of the sets I and II, we have calculated energies of 100 rotational levels. These levels are connected through radiative and collisional transitions. The Einstein A-coefficients for the radiative transitions among the levels are calculated. The collisional rate coefficients are calculated with the help of a scaling law. Using the radiative and collisional transitions probabilities, for each of the sets I and II, we have solved a set of statistical equilibrium equations coupled with the equations of radiative transfer. Two transitions 110-101and 312-303at 13.477 GHz and 17.981 GHz, respectively, of set I, and one transition 211-202at 15.176 GHz of set II are found to have anomalous absorption. These transitions may play important role in the identification of glycolaldehyde in a cosmic object. © 2015 Elsevier B.V. All rights reserved. Source

Sharma M.K.,Jiwaji University | Sharma M.,Jiwaji University | Sharma A.K.,Greater Noida Institute of Technology | Chandra S.,Lovely Professional University
Serbian Astronomical Journal | Year: 2015

In search for life in the Universe, scientists are interested in identification of molecules having amino (-NH2) group in the interstellar space. The aminoacetonitrile (NH2CH2CN), which is precursor of the simplest amino acid glycine (NH2CH2COOH), is identified near the galactic center. The 2-Aminopyridine (H2NC5H4N) is of interest for scientists as it has a close association with life on the earth. Based on spectroscopic studies, we have calculated intensities of 2- Aminopyridine lines due to transitions between the rotational levels up to 47 cm -1 and have found a number of lines which may help in its identification in the interstellar medium. Frequencies of some of these transitions are found close to those detected in the envelope of IRC +10216 that are not assigned to any of the known species. Source

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