Time filter

Source Type

Kanpur, India

Dayanand Anglo Vaidik Mahavidyalaya in Kanpur, India, established 1919 by Lala Diwan Chand is the second oldest college in the city, and counts among its ex-students revolutionaries like Chandra Shekhar Azad and numerous political figures. The college is situated in Civil Lines, opposite the Green Park Stadium. There are about 18,000 students with approximately 350 teaching staff. The college is accredited by the Indian NAAC.Former Indian Prime Minister Atal Bihari Vajpayee studied here.DAV college, Kanpur is affiliated with Chhatrapati Sahu Ji Maharaj University . It is managed by the Dayanand Anglo-Vedic College Trust and Management Society Wikipedia.

Rahman Q.I.,Integral University | Ahmad M.,Indian Institute of Technology Kanpur | Misra S.K.,DAV College Kanpur | Lohani M.,Integral University
Materials Letters | Year: 2013

Highly crystalline ZnO nanoparticles (NPs) were synthesized with zinc acetate as precursor and oxalic acid at 80°C through the simple solution phase approach. The synthesized ZnO NPs possessed monodispersity with the average size 20-30 nm. The crystalline properties revealed the typical hexagonal wurtzite phase with orientation along c-axis. The photocatalytic activity investigation was carried out by performing the decomposition of rhodamine-B dye under UV illumination over as-synthesized ZnO NPs. The rhodamine B dye considerably degraded by ∼95 within 70 min in the presence of as-synthesized ZnO NPs. An excellent rate constant (k=0.0343 min-1) was obtained for the degradation of rhodamine B dye. © 2012 Elsevier B.V. All rights reserved.

Kumar M.,DAV College Kanpur | Chandra A.,University of Delhi
Ionics | Year: 2010

Composites of polymer electrolyte polyethylene oxide (PEO) complexed with NH4ClO4, (PEO:NH4ClO4), having different weight ratios of dispersed semiconductor CuS (0-5 wt.%) have been prepared and characterized. The dispersal of CuS was achieved by its in situ formation in the viscous solution of polymer electrolyte (PEO:NH4ClO4) by sulfuration of CuSO4 using H2S. The band gap of CuS dispersed in the composites was found to be ~2.4 eV, which is higher than that of the bulk CuS for which it is 2.2 eV. Scanning electron microscopy studies show that the particle size varies from ~200 nm to several hundreds of nanometers. Polarization studies show that the semiconductor dispersed polymer composite so obtained has mixed ionic and electronic conduction. Detailed I-V studies show that the dispersoid is a p-type semiconductor. © 2010 Springer-Verlag.

Bansal N.,Panjab University | Tewari R.,Panjab University | Soni R.,DAV College Kanpur | Soni S.K.,Panjab University
Waste Management | Year: 2012

Various agricultural and kitchen waste residues were assessed for their ability to support the production of a complete cellulase system by Aspergillus niger NS-2 in solid state fermentation. Untreated as well as acid and base-pretreated substrates including corn cobs, carrot peelings, composite, grass, leaves, orange peelings, pineapple peelings, potato peelings, rice husk, sugarcane bagasse, saw dust, wheat bran, wheat straw, simply moistened with water, were found to be well suited for the organism's growth, producing good amounts of cellulases after 96. h without the supplementation of additional nutritional sources. Yields of cellulases were higher in alkali treated substrates as compared to acid treated and untreated substrates except in wheat bran. Of all the substrates tested, wheat bran appeared to be the best suited substrate producing appreciable yields of CMCase, FPase and β-glucosidase at the levels of 310, 17 and 33. U/g dry substrate respectively. An evaluation of various environmental parameters demonstrated that appreciable levels of cellulases could be produced over a wide range of temperatures (20-50 °C) and pH levels (3.0-8.0) with a 1:1.5 to 1:1.75 substrate to moisture ratio. © 2012 Elsevier Ltd.

Kumar V.,Krishna Institute Of Engg And Technology | Sharma S.K.,DAV College Kanpur | Dwivedi D.K.,Madan Mohan Malaviya University of Technology
Journal of Alloys and Compounds | Year: 2012

In this paper a screen-printing method has been employed for the deposition of low zinc content cadmium zinc sulphide (Cd 0.9Zn 0.1S) composite thin films on ultra clean glass substrate. Cadmium sulphide, zinc sulphide and cadmium chloride have been used as the basic source material. With these basic source materials, the optimum conditions for preparing good quality screen-printed films have been found. X-ray diffraction studies revealed that the films are polycrystalline in nature, single phase exhibiting wurtzite (hexagonal) structure with strong preferential orientation of grains along the (1 0 1) direction. SEM/EDAX analysis confirms the formation of ternary compound. The optical band gap (E g) of the films has been studied by using reflection spectra in wavelength range 350-600 nm. The DC conductivity of the films has been measured in vacuum by a two probe technique. © 2011 Elsevier B.V.

Mann K.S.,DAV College Kanpur | Korkut T.,Agri Ibrahim Cecen University
Annals of Nuclear Energy | Year: 2013

The gamma ray buildup factors for six silicate samples have been calculated, in the energy range of 0.015-15 MeV for penetration depths up to 100 mfp (mean free path), using five parameters based geometric progression (G-P) fitting formula with modified expression for dose multiplication factor [K(E, x)]. The computations were done using ANSI/ANS 6.4.3-1991 (American National Standard). The extrapolation to the buildup factors of the selected samples beyond 40 mfp and up to 100 mfp in this energy range are new to the available literature. Calculated buildup factors of water have been shown good agreement with the available standard data. The obtained results for all samples have been compared and verified by using WinXCom software and GEANT4 Monte Carlo simulations. © 2012 Elsevier Ltd. All rights reserved.

Discover hidden collaborations