Sk Porwal College

Kāmthi, India

Sk Porwal College

Kāmthi, India

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Dhondge S.S.,Sk Porwal College | Parwate D.V.,Rashtrasant Tukadoji Maharaj Nagpur University
Journal of Chemical Thermodynamics | Year: 2012

Density and viscosity measurements are reported for aqueous solutions of the drugs like Metformin hydrochloride (MH), Ranitidine hydrochloride (RH) and Tramadol hydrochloride (TH) at different temperatures T = (288.15, 298.15, and 308.15) K within the concentration range (0 to 0.15) mol·kg -1. The density and viscosity data are used to obtain apparent molar volume of solute (φ V) and relative viscosity (η r) of aqueous solutions at different temperatures. The limiting apparent molar volume of solute (φV0), limiting apparent molar expansivity (φE0), thermal expansion coefficient (α*), hydration number (n h), Jones-Dole equation viscosity A and B coefficients, experimental slope (S V) at different temperatures, and temperature coefficient of B i.e. (dB/dT) at T = 298.15 K were also obtained. The results obtained have been interpreted in terms of solute-solvent and solute-solute interactions and structure making/breaking ability of solute in the aqueous solution. © 2011 Elsevier Ltd. All rights reserved.


Dhondge S.S.,Sk Porwal College | Pandhurnekar C.P.,Shri Ramdeobaba Kamla Nehru Engineering College | Sheikh S.,Rashtrasant Tukadoji Maharaj Nagpur University | Deshmukh D.W.,Rashtrasant Tukadoji Maharaj Nagpur University
Journal of Chemical Thermodynamics | Year: 2011

The experimental data for the density (q) and viscosity (g) are reported for aqueous binary mixtures of different glycol ethers, namely ethylene glycol monomethyl ether (EGMME), ethylene glycol monoethyl ether (EGMEE), diethylene glycol monomethyl ether (DEGMME), and diethylene glycol monoethyl ether (DEGMEE), at different temperatures (T = 275.15 K and 283.15 K) within the concentration range 0 mol · kg -1 to 0.1 mol · kg -1. The values of density (ρ) and viscosity (g) of the solutions were used to compute different derived parameters, such as apparent molar volume (φV) of the solute, excess molar volume (V E) of the solution, viscosity B and D coefficients of solution and temperature coefficient of viscosity B-coefficient (dB/dT) of solution. The limiting apparent molar volume of the solutes (φ V 0) have been obtained for aqueous binary mixtures of these glycol ethers by smooth extrapolation of φV-m curves to zero concentration. By using the values of φ V 0, the limiting excess partial molar volumes (V̄ 2 0E ) have also been calculated. The results are interpreted in term of various interactions such as solute-solvent interactions and hydrogen bonding. © 2011 Elsevier Ltd. All rights reserved.


Bagchi S.,Indian National Environmental Engineering Research Institute | Bagchi S.,Ghent University | Biswas R.,Indian National Environmental Engineering Research Institute | Vlaeminck S.E.,Ghent University | And 2 more authors.
Microbial Biotechnology | Year: 2012

Partial nitritation/anammox (PANAM) technologies have rapidly developed over the last decade, but still considerable amounts of energy are required for active aeration. In this study, a non-aerated two-stage PANAM process was investigated. In the first-stage upflow fixed-film bioreactor, nitratation could not be prevented at ammonium loading rates up to 186mgNl-1d-1 and low influent dissolved oxygen (0.1mgO2l-1). Yet, increasing the loading rate to 416 and 747mgNl-1d-1 by decreasing the hydraulic retention time to 8 and 5h, respectively, resulted in partial nitritation with the desired nitrite to ammonium nitrogen ratio for the subsequent anammox stage (0.71-1.05). The second-stage anammox reactor was established with a synthetic feeding based on ammonium and nitrite. After establishing anammox at low biomass content (0.5g VSS l-1), the anammox influent was switched to partial nitritation effluent at a loading rate of 71mgNl-1d-1, of which 78% was removed at the stoichiometrically expected nitrite to ammonium consumption ratios (1.19) and nitrate production to ammonium consumption ratio (0.24). The combined PANAM reactors were operated for 3 months at a stable performance. Overall, PANAM appeals economically, saving about 50% of the energy costs, as well as technically, given straightforward operational principles. © 2012 The Authors. Microbial Biotechnology © 2012 Society for Applied Microbiology and Blackwell Publishing Ltd.


Dhondge S.S.,Sk Porwal College | Dhondge A.,P.A. College | Patil K.J.,North Maharashtra University | Tomar P.A.,College of Engineering, Pune
Asian Journal of Chemistry | Year: 2013

In this work, we report the determination of energy volume coefficient (Pint =(U/V)T also called as an internal pressure (Pint) in the dilute concentration region for the basic carbohydrates i.e., glucose, fructose, sucrose, galactose and lactose in aqueous solutions at 288.15 K in the concentration range 0-0.05 mol kg-1. To obtain this one requires precise isothermal compressibility and expansivity data. We used earlier reported data of density (&raugh) and speed of sound (u) obtained at 278.15, 288.15 and 298.15 K; assuming specific heat (φP) is nearly the same in the studied concentration region. The internal pressure for solutions is found to increase with concentration of solute linearly and the increase depends upon the number of polar hydroxyl groups and conformational characteristics of the carbohydrate molecules. It is well known that apparent molar volumes of (fV) of these compounds do not vary with concentration in dilute solution region (almost ideal solutions), while the conformational specificity is reflected only in limiting partial molar volumes because of solutesolvent interactions. We applied Gibson-Tait equation of state to internal pressure data and obtained limiting excess molar volumes (V ) 0E 2 and found that values of excess molar volume of these compounds are highly negative (-31 × 10-6 to -62 × 10 -6 m3 mol-1) at 288.15 K. These are large negative when compared with the molar volume data of solid carbohydrates. The differences are attributed to void volume and cage volume contribution to the total volume of solute molecule. It is invoked that when carbohydrates are dissolved in water, almost all free and void volumes are being used up due to dipole (-OH) and water molecular interactions through hydrogen bonding and retaining water structural characteristics intact in solution phase.


Chavan V.,Sk Porwal College | Kaveri P.R.,H.V.P.M.
2015 International Conference on Computing for Sustainable Global Development, INDIACom 2015 | Year: 2015

Cloud computing provide various computing resources as services over internet. These computing resources can be demanded and configure on real time. Cloud Service providers are always looking for upgrading functionality and quality of various services offered by them. Data centers are used to build cloud with large and distributed infrastructure, and to improve its functionality factors like load balancing, availability, scalability and elasticity are highly responsible. Thus these factors are always consider for the enlargement of cloud architecture. Proposed research work is brief discussion on clustering shared resources in cloud and its implementation. Resources in cloud plays vital role due to it's distribute and service oriented architecture. Proper placements and configuring these resources leads to more stable cloud architecture. As Cloud architecture comes with verity of shared resources, clustering these shared resources lead to performance improvement with better utilization and providing quality services to end users. Implementation in paper is based on cloud based simulation which impartially explained the proposed concept and helped to clarify its functionality. Thus paper in brief discussed about clustering and its importance in service oriented cloud architecture. © 2015 IEEE.


Thakare M.G.,Commerce and Science College | Ingle A.B.,Sk Porwal College | Kamble R.K.,Sardar Patel Mahavidyalaya
Indian Journal of Environmental Protection | Year: 2012

Soil sampling was carried out by quartering method in different impact zones of deforestation, such as adjacent, fringe and deep forest area. Soil samples were collected from top 15 cm soil layer. Different physico-chemical parameters were analysed and compared to assess the extent to which impacts of deforestation had occurred. Results indicated a clear distinction in soil quality from adjacent, fringe and deep forest area. Bulk density, pH and conductivity of soil samples were higher in adjacent area as compared with fringe and deep forest area. Whereas micronutrients concentration, such as iron and nickel was lower in adjacent area as compared with fringe and deep forest area. Due to significant anthropogenic activities in adjacent area, soil erosion had occurred and thus leads to more bulk density, pH and conductivity whereas less organic carbon, iron and nickel concentration as compared with fringe and deep forest area. Deforestation due to anthropogenic activities had adverse impacts on soil quality and thus reducing the forest cover from the study area. © 2012 - Kalpana Corporation.


Dhondge S.S.,Sk Porwal College | Bhalekar A.A.,Rashtrasant Tukadoji Maharaj Nagpur University | Kaulgud M.V.,Rashtrasant Tukadoji Maharaj Nagpur University | Tembhurne B.R.,Rashtrasant Tukadoji Maharaj Nagpur University
Asian Journal of Chemistry | Year: 2012

The experiential data for density (r) and speed of sound (u) have been obtained for aqueous solutions of acetonitrile, dimethyl formamide, dimethyl sulphoxide, dioxane, ethylene diamine, ethylene glycol, pyridine and tetrahydro furan at 298.15 and 308.15 K. The data have been processed to compute the derived parameters such as isentropic compressibility of solution (β S), apparent molar volume of solute (Φ V) and apparent molar isentropic compressibility of solute (φ KS). The results obtained have been interpreted in terms of solute-solvent and solute-solute interactions and hydrogen bonding between dissolved solutes and solvent molecules.


Tanna J.A.,Sk Porwal College | Tanna J.A.,Rashtrasant Tukadoji Maharaj Nagpur University | Chaudhary R.G.,Sk Porwal College | Juneja H.D.,Rashtrasant Tukadoji Maharaj Nagpur University | And 2 more authors.
BioNanoScience | Year: 2015

In this article, an efficient synthesis of histidine-capped ZnO nanoparticles was carried out in absolute ethanol by using solvothermal technique. The synthesized nanoparticles were further characterized by using different techniques such as powder X-ray diffraction (PXRD), scanning electron microscopy (SEM), energy dispersive X-ray analysis (EDAX), Fourier transfer infrared (FTIR), UV-visible spectroscopy, thermal analysis (TG/DTG/DTA) and photoluminescence spectroscopy. The XRD measurement reveals that the prepared nanoparticles have hexagonal wurtzite structure. From XRD data, the average crystalline size is calculated to be 22 nm according to half width of (1 0 1) diffraction peak using Debye-Scherrer formula. Moreover, the antibacterial activities of nanoparticles sample have been performed under standard method. The antibacterial activities of histidine-capped zinc oxide nanoparticles are tested against human bacterial pathogen such as Staphylococcus aureus, Escherichia coli, Klebsiella sp., Enterococcus faecalis and Pseudomonas aeruginosa by using agar well diffusion method. Besides, antibacterial activities of ZnO nanoparticles (20 to 60 μg) are compared with four well-known antibiotics viz., Amikacin (30 mcg), Ciprofloxacin (5 mcg), Gentamicin (5 mcg) and Norfloxacin (10 mcg). From antibacterial studies, it has been concluded that if the concentration of histidine-capped ZnO nanoparticles increases, then the antibacterial activities also increase. © 2015, Springer Science+Business Media New York.


Chavan V.,Sk Porwal College | Kaveri P.R.,Hvpms DCPE Amravati
1st International Conference on Networks and Soft Computing, ICNSC 2014 - Proceedings | Year: 2014

Cloud computing a big pool of resources dynamically reconfigures its resources as per user requirement in real time. Cloud environment mostly works with virtualized environment, which is a key consideration for providing virtual machines as a service to the users. It is difficult to manage virtual machine, and to deploy on any data centers. In cloud environment users expects better services from the vendors, in order to improve resource utilization. The factors in cloud environment as if scalability and availability are consider for better outcomes for users. This not only saves time, but also improves cost utilization. This paper proposes architecture, based on clustering virtual machines in datacenters for higher availability of resources with improved scalability. Clustering helps virtual machines to reconfigure and easy scheduling. The resource sharing in cloud will optimize and users get maximized result. Further, the paper directs a mathematical model for explaining the concepts of the proposed system. The existing system is being modulated using simulation tools and further elaborated in the paper. © 2014 IEEE.


Thakare M.G.,Commerce and Science College | Ingle A.B.,Commerce and Science College | Ingle A.B.,Sk Porwal College | Kamble R.K.,Commerce and Science College
Indian Journal of Environmental Protection | Year: 2012

Farm tank (bodi) constitutes a small water reservoir constructed by using available natural materials to store rainwater for irrigation purposes during post monsoon season. It receives water from rainfall and runoff from the surrounding catchment area during monsoon period and this serves for irrigation purposes of paddy fields. An investigation was carried out to ascertain the suitability of farm tank water quality for paddy fields from the study area by estimating various physico-chemical parameters of one farm tank for the post monsoon season in 2005 and 2006. Results show that sodium, total alkalinity, chlorides were found as the constituents affecting irrigation water quality. It can be concluded that farm tank water was best suited to use for irrigation purposes during post monsoon season for paddy fields. This is the first study for the farm tank water quality assessment for irrigation purposes for paddy fields from the study area. © 2012 - Kalpana Corporation.

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