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Search Results: 1 - 10 of 336707 matches for " Singh S "
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Geo-Hydrodynamics of Bagjata Area and its Significance with Respect to Seasonal Fluctuation of Groundwater  [PDF]
Bijay Singh, A. S. Singh
Journal of Water Resource and Protection (JWARP) , 2010, DOI: 10.4236/jwarp.2010.27079
Abstract: Bagjata area is a part of Singhbhum Shear Zone (SSZ) falling within Survey of India Toposheets No. 73J/6, J/7, J/10 and J/11. The Subarnarekha River, Sankh Nala and Gohala faults are major disconti-nuities in the area. An attempt has been made to simulate the regional groundwater hydrodynamics. Few dug-wells were monitored for more than a year to find out the seasonal fluctuation changes in the drainage pattern and groundwater level. Groundwater samples were analyzed for physical and chemical analysis. Results show that one of the major discontinuities in the area-the Gohala Fault controls largely the geohydrodynamics of the area. Discharge of groundwater is of effluence type during all the three seasons. The water is safe for drinking as most of the contaminations are much below the permissible limits. No such previous work has been attempted in this area to investigate the groundwater dynamics and hence the selection of few parameters were assumed and taken from similar surrounding aquifer systems for modeling. The groundwater flow was also assumed to be in steady state. The present paper deals with some important aspects related to the hydrological significance of the Bagjata Uranium mining area and its relationship with the local climate, physiography and meteorology. An attempt is also made to simulate the status of groundwater conditions of hard rock aquifers in the region. Further it envisages the necessity of such study being undertaken in the entire SSZ belt to secure precise information about the surface manifestations which govern the groundwater recharge potentiality as well as its quality.
Studies on Aluminum-Iron Ore in-Situ Particulate Composite  [PDF]
S. Sarkar, Akhilesh Singh
Open Journal of Composite Materials (OJCM) , 2012, DOI: 10.4236/ojcm.2012.21004
Abstract: Discontinuously reinforced aluminium matrix composites are fast emerging as engineering materials and competing with common metals and alloys. They are gaining significant acceptance because of higher specific strength, specific modulus and good wear resistance as compared to ordinary unreinforced alloys. Reinforcing particles or short fibers normally used are silicon carbide and alumina which are added externally. Recently it has been shown that alumina particles can be produced in-situ by reaction with metallic oxides reduced by aluminium. Alumina particles thus produced are dispersed in the aluminium matrix and the elementary metal gives solid solution strengthening of the matrix. In-situ particulate composites in comparison with conventional cast particulate composites produced by external addition promote cleaner interface, eliminates interface incompatibility of the matrices with the reinforcements, help to achieve greater thermodynamic stability of reinforcement particles in the matrix at elevated temperature and also increase the possibility of developing coherency between the matrix and particles formed in-situ. The morphology and the distribution of particles strongly influence the physical and mechanical properties of composites. In the present investigation, iron ore was added to molten aluminium, aluminium-magnesium and aluminium-silicon alloys by vortex method. The iron oxides present in the iron ore are observed to react with aluminium, magnesium resulting in production of Al2O3, MgO and metallic iron which dissolved in liquid aluminium. The composites thus produced were cast into cast iron die. The mechanical properties of the composites were evaluated. The dry sliding wear behavior of the cast composites was studied at different loads and different sliding velocities using Pin-On-Disk configuration wear testing machine. The worn surfaces and the wear debris were also analyzed using optical microscope and scanning electron microscope.
Evaluation of Electrocardiogram for Biometric Authentication  [PDF]
Yogendra Narain Singh, S K Singh
Journal of Information Security (JIS) , 2012, DOI: 10.4236/jis.2012.31005
Abstract: This paper presents an evaluation of a new biometric electrocardiogram (ECG) for individual authentication. We report the potential of ECG as a biometric and address the research concerns to use ECG-enabled biometric authentication system across a range of conditions. We present a method to delineate ECG waveforms and their end fiducials from each heartbeat. A new authentication strategy is proposed in this work, which uses the delineated features and taking decision for the identity of an individual with respect to the template database on the basis of match scores. Performance of the system is evaluated in a unimodal framework and in the multibiometric framework where ECG is combined with the face biometric and with the fingerprint biometric. The equal error rate (EER) result of the unimodal system is reported to 10.8%, while the EER results of the multibiometric systems are reported to 3.02% and 1.52%, respectively for the systems when ECG combined with the face biometric and ECG combined with the fingerprint biometric. The EER results of the combined systems prove that the ECG has an excellent source of supplementary information to a multibiometric system, despite it shows moderate performance in a unimodal framework. We critically evaluate the concerns involved to use ECG as a biometric for individual authentication such as, the lack of standardization of signal features and the presence of acquisition variations that make the data representation more difficult. In order to determine large scale performance, individuality of ECG remains to be examined.
High Heat Producing Volcano-Plutonic Rocks of the Siner Area, Malani Igneous Suite, Western Rajasthan, India  [PDF]
Laishram S. Singh, G. Vallinayagam
International Journal of Geosciences (IJG) , 2012, DOI: 10.4236/ijg.2012.35115
Abstract: he volcano-plutonic rocks of the Siner area of the Malani Igneous Suite (MIS) are characterized by high content of radioactive elements (U, Th, K) and are classified as high heat producing felsic volcano-plutonic rocks of A-type granitoid. Microgranite shows highly comparable heat production (26.07 HP) and total heat generation value (62.06 HGU in average) as compared to other granite (HP = 12.73; HGU = 26.57), rhyolite (HP = 4.98; HGU = 11.85) and trachyte (HP = 5.00; HGU = 11.91). The volcano-plutonic rocks of the present show higher average value of total HGU than the average value of 3.8 HGU for the continental crust, which suggests a possible linear relationship among the crustal heat generation of the MIS.
Dilepton Emission at Temperature Dependent Baryonic Quark-Gluon Plasma  [PDF]
Shougaijam S. Singh, Yogesh Kumar
Journal of Modern Physics (JMP) , 2013, DOI: 10.4236/jmp.2013.45082
Abstract:

Dilepton emission is calculated from quark-gluon plasma (QGP) with the consideration of temperature dependent chemical potential (TDCP). The model is considered to be quasi-model and hence take the dynamical quark mass as a finite value dependence on temperature. The temperature in quark mass enhances in the growth of dilepton emission rates. The emission rate of dilepton spectrum is shown in the intermediate mass region (IMR) of 1.0 - 4.0 GeV and its rate is observed to be a strong increasing function of the temperature dependent chemical potential for quark and anti-quark annihilation.

A Review of Price Forecasting Problem and Techniques in Deregulated Electricity Markets  [PDF]
Nitin Singh, S. R. Mohanty
Journal of Power and Energy Engineering (JPEE) , 2015, DOI: 10.4236/jpee.2015.39001
Abstract: In deregulated electricity markets, price forecasting is gaining importance between various market players in the power in order to adjust their bids in the day-ahead electricity markets and maximize their profits. Electricity price is volatile but non random in nature making it possible to identify the patterns based on the historical data and forecast. An accurate price forecasting method is an important factor for the market players as it enables them to decide their bidding strategy to maximize profits. Various models have been developed over a period of time which can be broadly classified into two types of models that are mainly used for Electricity Price forecasting are: 1) Time series models; and 2) Simulation based models; time series models are widely used among the two, for day ahead forecasting. The presented work summarizes the influencing factors that affect the price behavior and various established forecasting models based on time series analysis, such as Linear regression based models, nonlinear heuristics based models and other simulation based models.
Influencing behavioral change by customer engagement amongst youth
Singh S
Adolescent Health, Medicine and Therapeutics , 2011, DOI: http://dx.doi.org/10.2147/AHMT.S17856
Abstract: fluencing behavioral change by customer engagement amongst youth Perspectives (2928) Total Article Views Authors: Singh S Published Date December 2011 Volume 2011:2 Pages 123 - 132 DOI: http://dx.doi.org/10.2147/AHMT.S17856 Sonal Singh Marketing and Management Department, Macquarie University, Sydney, New South Wales, Australia Abstract: It is widely accepted that many social and health problems have underlying behavioral causes. Because these problems are rooted in human behavior, solutions to deal with them also lie in human behavior. This paper examines ways of integrating customer engagement in social programs to influence and initiate behavior change effectively with a special focus on youth. This work followed a theoretical deduction by use of a literature review. Social marketing places emphasis on behavior change, and one of the key challenges for social marketers is to ensure a perceived value for customers in taking up and maintaining positive behavior. If perceptions, beliefs, attitudes, and values influence behavior, then the central focus should be on the youth. Integrating youth is a prerequisite for effective social marketing programs and ultimately behavioral change. This approach will pave the way for effective brand positioning and brand loyalty in social marketing which has been lacking and requires more attention from researchers and policymakers. This paper outlines theoretical developments in social marketing that will increase the effectiveness of social marketing programs overall. Existing social marketing literature typically focuses on social marketing interventions and behavioral change. This paper uses customer engagement within a social marketing context so that social marketing programs are perceived as brands to which youth can relate.
Mineralization of aminobenzenesulfonates by a newly isolated bacterial co-culture (AS1 and AS2)
S. Singh
Biology and Medicine , 2011,
Abstract: Aminobenzenesulfonates (ABS) are important building blocks of azo dyes and are used in the manufacture of fewpharmaceuticals and pesticides. Thus, they are synthesized in large quantities and released into the environmentthrough wastewaters emanating from these industries. Xenobiotic character of ABS renders these compoundsresistant to degradation by unadapt activated sludge and bacterial species utilizing normal aromatics. Degradation ofABS isomers by a co-culture of Agrobacterium sp. strain PNS-1 and 2-ABS degrading bacterial consortium (BC) wasstudied. Among the ABS isomers, strain PNS-1 could only utilize 4-ABS as the growth substrate, whereas BC (AS1 &AS2) could degrade only 2-ABS. The co-culture, however, could completely mineralize both these isomers, whereas3-ABS was not degraded. Studies on the effect of the presence of glucose, an easily assimilable and non-toxicsubstrate, on the degradation of 2- and 4-ABS by the co-culture showed that 4-ABS degradation rate was notsignificantly affected, whereas decrease was observed in 2-ABS removal rate. These observations show that a mixedABS can only be mineralized by co-cultures of specialized bacterial strains, as individual strains have a very limitedsubstrate range.
The haunting cry of a boy in the hills
Singh S
Hepatitis B Annual , 2009,
Abstract:
Influencing behavioral change by customer engagement amongst youth
Singh S
Adolescent Health, Medicine and Therapeutics , 2011,
Abstract: Sonal SinghMarketing and Management Department, Macquarie University, Sydney, New South Wales, AustraliaAbstract: It is widely accepted that many social and health problems have underlying behavioral causes. Because these problems are rooted in human behavior, solutions to deal with them also lie in human behavior. This paper examines ways of integrating customer engagement in social programs to influence and initiate behavior change effectively with a special focus on youth. This work followed a theoretical deduction by use of a literature review. Social marketing places emphasis on behavior change, and one of the key challenges for social marketers is to ensure a perceived value for customers in taking up and maintaining positive behavior. If perceptions, beliefs, attitudes, and values influence behavior, then the central focus should be on the youth. Integrating youth is a prerequisite for effective social marketing programs and ultimately behavioral change. This approach will pave the way for effective brand positioning and brand loyalty in social marketing which has been lacking and requires more attention from researchers and policymakers. This paper outlines theoretical developments in social marketing that will increase the effectiveness of social marketing programs overall. Existing social marketing literature typically focuses on social marketing interventions and behavioral change. This paper uses customer engagement within a social marketing context so that social marketing programs are perceived as brands to which youth can relate.Keywords: social marketing, customer engagement, behavioral influence, change, youth
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