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Search Results: 1 - 10 of 1975 matches for " Pandey Abhishant "
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Fine needle aspiration cytology and cell block in the diagnosis of seminoma testis
Pandey Abhishant,Nandini N,Jha A,Manjunath G
Journal of Cytology , 2011,
Abstract: Testicular neoplasms which show a wide variety of morphologic types, comprise a small proportion of malignancies. Early identification and treatment is essential for achieving long term survival. The cytologic findings in fine needle aspiration smears from left testicular swelling of a 49 year old male suggestive of a germ cell tumor was complimented by cell block preparation as seminoma. This was confirmed by histopathologic studies. We are presenting this case to emphasize that cell block can be used for diagnosis of testicular tumors.
Power Producing Preheaters—An Approach to Generate Clean Energy in Cement Plants  [PDF]
Amitesh Pandey
Energy and Power Engineering (EPE) , 2016, DOI: 10.4236/epe.2016.84019
Abstract: Demand of cement in developing countries is directly proportional to the development rate of that country. But increasing input cost of cement manufacturing, decreasing margin of profit, scarcity of raw coal availability and emission of greenhouse gases are some constraints, which restrict the growth of cement industry. Hence to combat with all these adverse situations simultaneously, this project report introduces and efforts to generate clean and green energy with the help of combination of preheater tower, which is available in all integrated cement plants and an augmented wind turbine. Hence, the technology is named as “Power Producing Preheaters” or 3P.H. Introduction of 3P.H. in cement industry, generates a definite amount of clean and green energy (as per site conditions), which is directly used in cement production to avoid grid connectivity cost of wind turbine output. Calculations are done to show the overall cost of project, its payback period and reduction in emission of greenhouse gases along with its benefits in cement industry.
Spatial and Temporal Variability of Soil Moisture  [PDF]
Vanita Pandey, Pankaj K. Pandey
International Journal of Geosciences (IJG) , 2010, DOI: 10.4236/ijg.2010.12012
Abstract: The characterization of temporal and spatial variability of soil moisture is highly relevant for understanding the many hydrological processes, to model the processes better and to apply them to conservation planning. Considerable variability in space and time coupled with inadequate and uneven distribution of irrigation water results in uneven yield in an area Spatial and temporal variability highly affect the heterogeneity of soil water, solute transport and leaching of chemicals to ground water. Spatial variability of soil moisture helps in mapping soil properties across the field and variability in irrigation requirement. While the temporal variability of water content and infiltration helps in irrigation management, the temporal correlation structure helps in forecasting next irrigation. Kriging is a geostatistical technique for interpolation that takes into account the spatial auto-correlation of a variable to produce the best linear unbiased estimate. The same has been used for data interpolation for the C. T. A. E. Udaipur India. These interpolated data were plotted against distance to show variability between the krigged value and observed value. The range of krigged soil moisture values was smaller than the observed one. The goal of this study was to map layer-wise soil moisture up to 60 cm depth which is useful for irrigation planning.
Preservation Artifacts and Loss Pattern of Arsenic: A Case Study from Highly Contaminated Location in Central-East India  [PDF]
Piyush Kant Pandey, Hansa Zankyani, Madhurima Pandey
Journal of Environmental Protection (JEP) , 2011, DOI: 10.4236/jep.2011.29139
Abstract: Arsenic is the focus of public attention because of its wider prevalence and toxicity. Proper sampling is important in characterizing toxic water contaminants in the groundwater. The present paper studies aspects of sampling, preservation artifacts, analytical issues etc. in a natural arsenic contaminated groundwater. The samples were collected from arsenic contaminated groundwater at three locations of village Kaudikasa in Rajnandgaon (Chhattisgarh). The standard method of sampling and preservation of arsenic was examined. The permitted sample holding time in this state is 180 days which has been found to be unrealistic on examination. The communication also compares the loss pattern of arsenic in unpreserved samples with samples preserved and kept at 4?C. It was found that about As losses during hold- ing after preservation were about 0% in one day, 35% in seven day, 70% in fifteen day, and 65% in thirty days time. Hence, the present recommended method of preservation leads to huge under reporting of As in natural samples. If the pattern of losses observed at the present location exists at other locations then the actual As levels could be much higher than the reported ones.
Defluoridation of Water by a Biomass: Tinospora cordifolia  [PDF]
Piyush Kant Pandey, Madhurima Pandey, Rekha Sharma
Journal of Environmental Protection (JEP) , 2012, DOI: 10.4236/jep.2012.37074
Abstract: This research is focused on the search of a biomass for the sequestration of fluoride from drinking water. Defluoridation of water was studied by batch experiments in biosorption process. The biomass was found to reduce fluoride to permissible limit 1.5 mg/L as prescribed by WHO. The efficiency of the sorption process was investigated under different experimental parameters such as pH 7, standing time 120 min and biomass doses 7.0 g with 5 mg/L concentration of fluoride. Neutral pH was identified as the optimum condition of the medium and 120 minutes was the best contact time for maximum fluoride adsorption. The experimental data was found good fitting to Langmuir and Freundlich isotherm models. In interference study tolerable effect was found with 50 mg/L concentration of co-ions, whereas increasing the concentration of co-ions retarded the fluoride removal capacity in some extent. FT-IR spectrum analysis showed fluoride binding in the different frequency ranges of the biomass. Eventually, this plant biomass is recommended as a suitable and low cost adsorbent to reduce fluoride into standard permissible limit.
Fluoride Mobilization Due to Coal Mining in Parts of Chhattisgarh  [PDF]
Piyush Kant Pandey, Madhurima Pandey, Meena Chakraborty
Journal of Environmental Protection (JEP) , 2013, DOI: 10.4236/jep.2013.44046
Abstract:

This paper reports the ground water quality deterioration due to fluoride in the parts of Chhattisgarh state. Out of selected 60 sites, high contamination of fluoride content up to 7.00 ppm was found in Kolam, Muragaon and Saraitola villages and in the range of 1.0 to 1.2 ppm in Basanpalli, Bhalumuda, Dolesara, Penkapara, Kunjhemura villages. Ten new areas were selected for yearly monitoring and fluoride concentration was found up to 1.44 ppm. The results call for immediate steps for monitoring and treatment of contaminated locations.

A Note on Crank-Nicolson Scheme for Burgers’ Equation  [PDF]
Kanti Pandey, Lajja Verma
Applied Mathematics (AM) , 2011, DOI: 10.4236/am.2011.27118
Abstract: In this work we generate the numerical solutions of the Burgers’ equation by applying the Crank-Nicolson method directly to the Burgers’ equation, i.e., we do not use Hopf-Cole transformation to reduce Burgers’ equation into the linear heat equation. Absolute error of the present method is compared to the absolute error of the two existing methods for two test problems. The method is also analyzed for a third test problem, nu-merical solutions as well as exact solutions for different values of viscosity are calculated and we find that the numerical solutions are very close to exact solution.
International Linkages of the Indian Commodity Futures Markets  [PDF]
Brajesh Kumar, Ajay Pandey
Modern Economy (ME) , 2011, DOI: 10.4236/me.2011.23027
Abstract: This paper investigates the cross market linkages of Indian commodity futures for nine commodities with futures markets outside India. These commodities range from highly tradable commodities to less tradable agricultural commodities. We analyze the cross market linkages in terms of return and volatility spillovers. The nine commodities consist of two agricultural commodities: Soybean, and Corn, three metals: Aluminum, Copper and Zinc, two precious metals: Gold and Silver, and two energy commodities: Crude oil and Natural gas. Return spillover is investigated through Johansen’s cointegration test, error correction model, Granger causality test and variance decomposition techniques. We apply Bivariate GARCH model (BEKK) to investtigate volatility spillover between India and other World markets. We find that futures prices of agricultural commodities traded at National Commodity Derivatives Exchange, India (NCDEX) and Chicago Board of Trade (CBOT), prices of precious metals traded at Multi Commodity Exchange, India (MCX) and NYMEX, prices of industrial metals traded at MCX and the London Metal Exchange (LME) and prices of energy commodities traded at MCX and NYMEX are cointegrated. In case of commodities, it is found that world markets have bigger (unidirectional) impact on Indian markets. In bivariate model, we found bi-directional return spillover between MCX and LME markets. However, effect of LME on MCX is stronger than the effect of MCX on LME. Results of return and volatility spillovers indicate that the Indian commodity futures markets function as a satellite market and assimilate information from the world market.
Energy Consumption Patterns for Different Mobility Conditions in WSN  [PDF]
Manjusha Pandey, Shekhar Verma
Wireless Sensor Network (WSN) , 2011, DOI: 10.4236/wsn.2011.312044
Abstract: Wireless sensor networks are challenging networks regarding communication because of its resource constrained nature and dynamic network topology. Plenty of research has being going on throughout the world to optimize communication cost and overhead due to it in the ad hoc networks, thus efforts are being made to make the communications more energy efficient. The application spectrum and use cases of wireless sensor networks includes many critical applications as environmental monitoring, to resource monitoring, to Industrial measurements, to public safety applications and last but not the least to sensitive applications as military sector applications .The erratic size of such networks and along with its exotic topology pose a magnificent set of challenges to the routing algorithms designed and implemented within such networks. The present work concentrates on the comparative analysis of some of reactive and proactive protocols used in the wireless sensor networks. The parameter for comparative analysis is the energy consumption for different simulation time and for different mobility conditions based scenario.
Efficiency of microsatellite isolation from orchids via next generation sequencing  [PDF]
Madhav Pandey, Jyotsna Sharma
Open Journal of Genetics (OJGen) , 2012, DOI: 10.4236/ojgen.2012.24022
Abstract: Microsatellites, or simple sequence repeats (SSRs), are highly polymorphic, co-dominant genetic markers commonly used for population genetics analyses although de novo development of species specific microsatellites is cost-and time-intensive. Orchidaceae is one of the most species-rich families of angiosperms with more than 30,000 species estimated. Despite its high species-diversity, microsatellites are available only for a few species and all were developed by only using Sanger sequencing methods. For the first time in orchids, we used 454 GS-FLX sequencing to isolate microsatellites in two species (Cypripedium kentuckiense and Pogonia ophioglossoides), and report preliminary results of the study. From 1/16th plate that was subjected to sequencing, 32,665 reads were generated, from which 15,473 fragments contained at least one SSR. We selected 20,697 SSRs representing di-, tri-, and tetra-nucleotides. While 3,674 microsatellites had flanking regions on both sides, useable primer pairs could be designed for 255 SSRs. The mean numbers of reads, SSRs, and SSR-containing reads useful for primer design estimated for other 15 orchid species using Sanger sequencing method were 166, 78 and 31, respectively. Results demonstrate that the efficiency of microsatellite isolation in orchids is substantially higher with 454 GS-FLX sequencing technique in comparison to the Sanger sequencing methods.
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