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Uniyal R.,Gurukul Kangri Vishwavidyalaya | Nandan H.,Gurukul Kangri Vishwavidyalaya | Biswas A.,Ranaghat College | Purohit K.D.,Hemwati Nandan Bahuguna Garhwal University
Physical Review D - Particles, Fields, Gravitation and Cosmology | Year: 2015

We study the geodesic motion of massive and massless test particles in the background of a particular class of multiple charge black holes in gauged supergravity theories in D=4. We have analyzed the horizon structure along with the nature of the effective potentials for the case of four equal charges. In view of the corresponding effective potentials, we have discussed all the possible orbits in detail for different values of energy and angular momentum of the incoming test particles. The periods for one complete revolution of circular orbits and the advance of perihelion of the planetary orbit have also been investigated in greater detail for massive test particles. We have also discussed the time period of unstable circular motion and cone of avoidance of massless test particles in detail. All the corresponding results obtained for massive and massless test particles are then compared accordingly. © 2015 American Physical Society.


Arya S.,Gurukul Kangri Vishwavidyalaya | Nipur,Gurukul Kangri Vishwavidyalaya
Proceedings - 2015 2nd IEEE International Conference on Advances in Computing and Communication Engineering, ICACCE 2015 | Year: 2015

Multistage Interconnection Networks (MINs) are most competent high-speed interconnection networks (INs) which are form by many stages of interconnected switches. Multistage Interconnection Networks (MINs) is the most emerging technology, which is used, in broadband switching and multiprocessor systems. With the rapid expansion of high performance computing system, the MIN performance has become a key factor of controlling the overall performance. Due to some limitations of MINs, high-speed Optical Multistage Interconnection networks (OMINs) came into existence to improve the performance. Cross talk problem is the most vital issue of high speed OMINs, which is form by undesired coupling of two wavelengths. Link conflicts and Switch Conflicts can cause cross talk. If anyone or both conflicts appear in MIN then the cross talk problem arises. In traditional MINs, only Link conflicts occur but in Optical MINs, both conflicts occur. In this paper, we have proposed Link-Switch Conflict (LSC) algorithm on Omega Networks for detecting Link Conflicts and switch conflicts. This algorithm can be used to minimize the cross talk problem. © 2015 IEEE.


Dubey R.C.,Gurukul Kangri Vishwavidyalaya | Khare S.,Gurukul Kangri Vishwavidyalaya | Kumar P.,Gurukul Kangri Vishwavidyalaya | Maheshwari D.K.,Gurukul Kangri Vishwavidyalaya
Archives of Phytopathology and Plant Protection | Year: 2014

A chemical fertiliser-adaptive variant, Bacillus subtilis BSK17, showed induction in growth at 0.32 M of Urea, 0.05 M of DAP, 0.04 M of MoP and 0.08 of gypsum. In addition, B. subtilis BSK17 produced various plant growth-promoting substances and showed higher colony growth inhibition of Fusarium oxysporum that increased with increase in incubation time and reached the maximum by 78% at 120 h. In field, antibiotic-resistant marker strains of B. subtilis BSK17ery+ and B. subtilis BSK17tet+ showed more improvement in seed yield (90% than the control and 24% than full dose of chemical fertilisers) of Cicer arietinum when applied with half dose of chemical fertilisers (N5+5P15+15K15S10+10+10). Root length, shoot length, fresh and dry weight of root and shoot of plants were enhanced after 120 days in comparison to control; all values were significant at 1% CD. The strain significantly colonised the rhizosphere of C. arietinum by 6.64 log cfu after 120 days. © 2014 © 2014 Taylor & Francis.


Sahni S.K.,Jawaharlal Nehru University | Jaiswal P.K.,Jawaharlal Nehru University | Kaushik P.,Gurukul Kangri Vishwavidyalaya | Thakur I.S.,Jawaharlal Nehru University
International Biodeterioration and Biodegradation | Year: 2011

An alkalotolerant bacterial community was developed by continuous enrichment in the chemostat in presence of dibenzofuran (DF) as sole carbon source. Six different types of bacterial isolates were cultured on nutrient broth agar plates together with six operational taxonomic units (OTUs) at pH 7.0 and pH 8.0 by 16S rDNA-DGGE method. However, isolates of microbial community was declined from three OTUs (pH 9.0) to two at pH 10.0 after enrichment in alkaline condition. Among the six isolates tested for degradation of DF, Pseudomonas sp. and Bacillus sp. the members of alkalotolerant bacterial community had better potency to degrade dibenzofuran. Alkalotolerant bacterial community introduced in soil microcosm for evaluation of survival of most suitable isolates and degradation of dioxin-like compound indicated more than 90% degradation of dibenzofuran after 45 days by the bacterial community enriched for 180 days in the chemostat at pH 10, however, microbial community was not competent to utilize even 50% DF after day 30, not enriched in the chemostat. The survival of competent bacteria monitored by DGGE method in soil microcosm indicated presence of two major alkalotolerant isolates for utilization of dibenzofuran, substantiated the results and significance of alkalotolerant bacteria for in situ bioremediation of dioxin-like compounds in the environment. © 2011 Elsevier Ltd.


Singh U.,Indian Central Electronics Engineering Research Institute | Bera A.,Indian Central Electronics Engineering Research Institute | Kumar N.,Indian Central Electronics Engineering Research Institute | Purohit L.P.,Gurukul Kangri Vishwavidyalaya | Sinha A.K.,Indian Central Electronics Engineering Research Institute
Journal of Infrared, Millimeter, and Terahertz Waves | Year: 2010

A triode type magnetron injection gun (MIG) of a 42 GHz, 200 kW gyrotron for an Indian TOKAMAK system is designed by using the commercially available code EGUN. The operating voltages of the modulating anode and the accelerating anode are 29 kVand 65 kV respectively. The operating mode of the gyrotron is TE 03 and it is operated in fundamental harmonic. The simulated results of MIG obtained with the EGUN code are validated with another trajectory code TRAK. © Springer Science+Business Media, LLC 2010.


Arya S.,Gurukul Kangri Vishwavidyalaya | Nipur,Gurukul Kangri Vishwavidyalaya
Proceedings on 2015 1st International Conference on Next Generation Computing Technologies, NGCT 2015 | Year: 2015

Multistage Interconnection Network (MIN) is a class of high-speed network and formed by many stages of interconnected switches. With the growth of parallel processing, the MIN has become a hotspot of this field. Optical Multistage Interconnection networks (OMINs) came into existence because of its high speed of data transmission as compare to electrical (traditional) MIN. OMINs are high speed interconnection networks but also have some issues like crosstalk. Crosstalk problem is generated by undesired coupling of two wavelengths. These undesired coupling could be caused by Link conflicts and Switch Conflicts. In Electronic MINs there is only Link conflicts but in Optical MINs both Switch Conflicts and Link Conflicts occurs. Based on study and analysis a number of researches have been done for resolving these conflicts. In this paper, we have proposed a method Link-Switch Conflicts (LSC) on Optical Omega Networks, which detects Link Conflicts and switch conflicts separately. We are also routing these conflicted messages to resolve crosstalk. The results of Link-Switch Conflict (LSC) method are analyzed and compared with Windows Method (WM), Improved Windows Method (IWM) in Omega Network. This method is used to minimize the crosstalk problem. © 2015 IEEE.


Uniyal R.,Gurukul Kangri Vishwavidyalaya | Chandrachani Devi N.,Observat'orio Nacional | Nandan H.,Gurukul Kangri Vishwavidyalaya | Purohit K.D.,Hemwati Nandan Bahuguna Garhwal University
General Relativity and Gravitation | Year: 2015

We study the time-like geodesic congruences, in the space-time geometry of a Schwarzschild black hole surrounded by quintessence. The nature of effective potential along with the structure of the possible orbits for test particles in view of the different values of quintessence parameter are analysed in detail. An increase in quintessence parameter is seen to set the particles from further distance into motion around black hole. The effect of quintessence parameter is investigated analytically wherever possible otherwise we perform the numerical analysis to probe the structure of possible orbits. It is observed that there exist a number of different possible orbits for a test particle in case of non-radial geodesics, such as circular (stable as well as unstable) bound orbits, radially plunge and fly-by orbits, whereas no bound orbits exist in case of radial geodesics. © 2015, Springer Science+Business Media New York.


Mahto M.K.,Gurukul Kangri Vishwavidyalaya | Bhatia K.,Gurukul Kangri Vishwavidyalaya | Sharma R.K.,Thapar University
Conference Proceeding - 2015 International Conference on Advances in Computer Engineering and Applications, ICACEA 2015 | Year: 2015

Despite the advancements in Optical Character Recognition (OCR) technologies, problem of Indic script character recognition remains challenging. Especially in case of handwritten characters the challenges are even more. In this work, we focus on off-line recognition of handwritten characters of Gurmukhi, an Indic script commonly used in state of Punjab in India. As a part of this work, we collected a Gurmukhi character dataset of 3500 images. This dataset is collected from 10 writers. We propose a combined horizontal and vertical projection feature extraction scheme for recognition of Gurmukhi characters. We have tested our method on the collected dataset and achieved a high character recognition accuracy of 98.06%. © 2015 IEEE.


Uniyal R.,Gurukul Kangri Vishwavidyalaya | Nandan H.,Gurukul Kangri Vishwavidyalaya | Purohit K.D.,Hemwati Nandan Bahuguna Garhwal University
Modern Physics Letters A | Year: 2014

We study the time-like geodesics and geodesic deviation for a two-dimensional (2D) stringy black hole (BH) spacetime in Schwarzschild gauge. We have analyzed the properties of effective potential along with the structure of the possible orbits for test particles with different settings of BH parameters. The exactly solvable geodesic deviation equation is used to obtain corresponding deviation vector. The nature of deviation and tidal force is also examined in view of the behavior of corresponding deviation vector. The results are also compared with an another 2D stringy BH spacetime. © 2014 World Scientific Publishing Company.


Singh U.,Indian Central Electronics Engineering Research Institute | Kumar N.,Indian Central Electronics Engineering Research Institute | Tandon S.,Indian Central Electronics Engineering Research Institute | Khatun H.,Indian Central Electronics Engineering Research Institute | And 2 more authors.
Progress In Electromagnetics Research Letters | Year: 2010

A 40A triode-type magnetron injection gun for a 1MW, 120 GHz gyrotron has been designed. The preliminary design has been obtained by using some trade-off equations. Computer simulation has been performed by using the commercially available code EGUN and the in-house developed code MIGANS. The operating voltages of the modulating anode and the accelerating anode are 60 kV and 80 kV, respectively. The electron beam with a low transverse velocity spread (δβ{box drawings light up and horizontal}= 3:3%) and velocity ratio, α = 1:38 at beam current = 40A is obtained. The simulated results of the MIG obtained with the EGUN code have been validated with another trajectory code TRAK. The results on the design output parameters obtained by these two codes were found to be in close agreement. The sensitivity study has been carried out by changing the different gun parameters to decide the fabrication tolerance.

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