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Search Results: 1 - 10 of 139693 matches for " K Gautam "
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Relevance of Twin Deficit Hypotheses: An Econometric Analysis with Reference to India  [PDF]
Suresh K.G., Vikas Gautam
Theoretical Economics Letters (TEL) , 2015, DOI: 10.4236/tel.2015.52036
Abstract: Current study examines the relevance of twin deficit hypothesis in Indian context by considering the endogenously determined structural breaks in both unit root and cointegration tests. The cointegration analysis shows that there is no long term relationship between the study variables. But the Granger causality test results indicate that bidirectional granger causality is running between the variables. Results showed no long run relationship between the variables; twin divergence in the long run, while in the short term, variables are related. The findings of the study are based on data for the period 1973-1974 to 2013-2014.
Efficacy of Triphala Churn ingredients against A. niger and potential of clove extract as herbal fungitoxicant
Ajay K Gautam
Biology and Medicine , 2010,
Abstract: The present study explores the association of Aspergillus niger with stored raw and powdered ingredients ofTriphala Churn, which is a 1:1:1 proportional combination of Emblica officinalis Gaertn. (Amla), Terminaliabellerica (Gaertn.) Roxb. (Baheda), and Terminalia chebula Retz. (Harada) respectively. Total 106 stored fruitsand 68 powdered samples of E. officinalis, T. bellerica and T. chebula, have been analysed for their fungalassociation, if any. Results revealed that among all the fungal isolates, A. niger was found to be a frequentlyoccurring species as well as a major contaminant. Therefore, present investigation was carried out to study theefficacy of aqueous extracts of fruits (fresh & dry) and a powdered ingredient of Triphala churn against the growthof A. niger. In addition, an effort has been made to evaluate the antifungal potential of aqueous extracts ofSyzygium aromaticum (L.) Merril & Perry (Clove), Cinnamomum zeylanicum Blume (Cinnamon), and Zingiberofficinale Roscoe (Ginger) as herbal fungitoxiants, to control the growth of A. niger. During the investigation ofsamples for fungal contamination, highest percent frequency (93.10%) of A. niger was recorded. It was observedthat none of the aqueous extracts of fruits and powdered ingredient of Triphala churn was found effective againstthe growth of A. niger. However, the aqueous extract of Clove was found strongly effective to inhibit the growth ofA. niger completely at 20% concentration (v/v). Among the other extracts Cinnamon showed 24.73% inhibition,whereas Ginger extracts was observed to be ineffective against A. niger. Hence, the aqueous extract of Clovecan be utilized as herbal fungitoxicant to control the growth of A. niger.
Study of child labor among school children in urban and rural areas of Pondicherry
Devi K,Roy Gautam
Indian Journal of Community Medicine , 2008,
Abstract:
Testing orbifold models of Supersymmetric Grand Unification
Gautam Bhattacharyya,K. Sridhar
Physics , 2001, DOI: 10.1088/0954-3899/29/6/302
Abstract: In a model of supersymmetric SU(5) Grand Unification with a spatial dimension described by the orbifold $S^1/(Z_2 \times Z_2')$, proton decay is naturally suppressed at all orders. This is achieved by a suitable implementation of the discrete symmetries on the brane. But baryon number violating interactions are present in this model. We propose a few possible experimental tests of this model which exploit the effect of the baryon number violating couplings on low-energy observables like neutron-antineutron oscillations, double nucleon decay into two kaons, hadronic decay widths of the $Z$ boson, and $t \bar t$ production cross-section in Run II of the Tevatron.
Hierarchical Route Optimization by Using Tree information option in a Mobile Networks
K. K. Gautam,Menu Chaudhary
International Journal of Computer Science and Information Security , 2009,
Abstract: The Networks Mobility (NEMO) Protocol is a way of managing the mobility of an entire network, and mobile internet protocol is the basic solution for Networks Mobility. A hierarchical route optimization system for mobile network is proposed to solve management of hierarchical route optimization problems. In present paper, we study Hierarchical Route Optimization Scheme using Tree Information Option (HROSTIO). The concept of optimization finding the extreme of a function that maps candidate ‘solution’ to scalar values of ‘quality’ – is an extremely general and useful idea. For solving this problem, we use a few salient adaptations and we also extend HROSTIO perform routing between the mobile networks.Keywords-Route Optimization; Tree Information Option; personal area networks; NEMO; IP;
Hierarchical Route Optimization by Using Tree information option in a Mobile Networks
K. K. Gautam,Menu Chaudhary
Computer Science , 2010,
Abstract: The Networks Mobility (NEMO) Protocol is a way of managing the mobility of an entire network, and mobile internet protocol is the basic solution for Networks Mobility. A hierarchical route optimization system for mobile network is proposed to solve management of hierarchical route optimization problems. In present paper, we study Hierarchical Route Optimization Scheme using Tree Information Option (HROSTIO). The concept of optimization finding the extreme of a function that maps candidate solution to scalar values of quality, is an extremely general and useful idea. For solving this problem, we use a few salient adaptations and we also extend HROSTIO perform routing between the mobile networks.
Tunable Single-Longitudinal-Mode High-Power Fiber Laser
Jonas K. Valiunas,Gautam Das
International Journal of Optics , 2012, DOI: 10.1155/2012/475056
Abstract: We report a novel CW tunable high-power single-longitudinal-mode fiber laser with a linewidth of 9?MHz. A tunable fiber Bragg grating provided wavelength selection over a 10?nm range. An all-fiber Fabry-Perot filter was used to increase the longitudinal mode spacing of the laser cavity. An unpumped polarization-maintaining erbium-doped fiber was used inside the cavity to eliminate mode hopping and increase stability. A maximum output power of 300?mW was produced while maintaining single-longitudinal-mode operation. 1. Introduction Fiber lasers are established as robust and reliable devices with a variety of applications in industry and medicine due to their unique characteristics, such as all-fiber designs, compact size, cost-effective production and operation, and the no need for realignment or external cooling. High-power single-wavelength and multiwavelength infrared fiber lasers are very attractive for applications in optical communications, sensing, spectroscopy, biomedical instrumentation, and nonlinear optics. The continued progress in fiber pumping techniques, advanced fiber designs, and fabrication processes, as well as the availability of high-power pump diodes, has assisted in the development of high-power fiber lasers [1–5]. Fiber lasers have found applications in temperature and strain sensors [6–11], medical diagnostics [12–14], and industrial processing [15]. High-power fiber lasers using erbium-ytterbium codoped fibers as the gain medium, which operates in the eye-safe (1.5?μm to 1.6?μm) spectral range, can now compete with traditional solid-state bulk lasers. The applications of recently reported single-wavelength [16, 17] and multiwavelength [18, 19] high-power fiber lasers were limited due to large linewidth of the lasing wavelength, multi-longitudinal-mode oscillations, small tuning range, and complex designs. In this paper we present a novel tunable, high-power, single-wavelength, single-longitudinal-mode, fiber ring laser. 2. Experimental Setup The experimental setup of the fiber laser is shown in Figure 1. The resonant cavity consists of a high-power polarization-independent optical isolator (OI), which guaranteed the unidirectional propagation and thus eliminated the spatial hole-burning effects [20]; an all-fiber polarization controller; a commercially available tunable fiber Bragg grating (TFBG) with a tuning range of 10?nm (1565?nm–1575?nm); a 4?m long double-clad erbium-ytterbium codoped (DC-EYDF) fiber with core/cladding diameters of 10/131?μm which was used as the gain medium. In general to produce high output power from a
Laboratory Study of the Influence of Substrate Type and Temperature on the Exploratory Tunneling by Formosan Subterranean Termite
Bal K. Gautam,Gregg Henderson
Insects , 2012, DOI: 10.3390/insects3030629
Abstract: Using two-dimensional foraging arenas, laboratory tests were conducted to investigate the effect of soil type, soil moisture level and ambient temperature on the exploratory tunneling by Coptotermes formosanus Shiraki. In choice arenas consisting of two substrate types having two moisture levels each, and conducted at a constant temperature of 22 °C, a significantly greater proportion of termites aggregated in sand than in sandy loam. Similarly, the length of excavated tunnels was also increased in sand. In a given substrate, termite aggregation or tunnel length did not differ between 5% and 15% moisture levels. In no-choice tests, where three different substrates (sand, sandy loam and?silt loam) were tested at two temperatures (22 °C and 28 °C), excavations were significantly greater in sand than either sandy loam or silt loam at 22 °C. Fewer primary tunnels were constructed in sandy loam than in sand and fewer branched tunnels than either in sand or silt loam. No significant difference in either tunnel length or number of primary or branched tunnels was found between these two temperatures.
Efficient Method for Multiple-Level Association Rules in Large Databases
Pratima Gautam,K. R. Pardasani
Journal of Emerging Trends in Computing and Information Sciences , 2011,
Abstract: The problems of developing models and algorithms for multilevel association mining pose for new challenges for mathematics and computer science. These problems become more challenging when some form of uncertainty in data or relationships in data exists. In this paper, we present a partition technique for the multilevel association rule mining problem. Taking out association rules at multiple levels helps in discovering more specific and applicable knowledge. Even in computing, for the number of occurrence of an item, we require to scan the given database a lot of times. Thus we used partition method and boolean methods for finding frequent itemsets at each concept levels which reduce the number of scans, I/O cost and also reduce CPU overhead. In this paper, a new approach is introduced for solving the abovementioned issues. Therefore, this algorithm above all fit for very large size databases. We also use a top-down progressive deepening method, developed for efficient mining of multiple-level association rules from large transaction databases based on the Apriori principle
A Fast Algorithm for Mining Multilevel Association Rule Based on Boolean Matrix
Pratima Gautam,K. R. Pardasani
International Journal on Computer Science and Engineering , 2010,
Abstract: In this paper an algorithm is proposed formining multilevel association rules. A Boolean Matrix based approach has been employed to discover frequent itemsets, the item forming a rule come from different levels. It adopts Boolean relational calculus to discover maximum frequent itemsets at lower level. When using this algorithmfirst time, it scans the database once and will generate the association rules. Apriori property is used in prune the item sets. It is not necessary to scan the database again; it uses Boolean logical operation to generate the multilevel association rules and also use top-down progressive deepening method.
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