Dr Bam University

Aurangābād, India

Dr Bam University

Aurangābād, India
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Shelke S.,Ssgm College | Mhaske G.,Ssgm College | Gadakh S.,Ssgm College | Gill C.,Dr Bam University
Bioorganic and Medicinal Chemistry Letters | Year: 2010

A series of novel fluorine-containing triazoles 3, thiadiazoles 4, and oxadiazoles 5 were synthesized from thiosemicarbazides 2. These reactions were carried out by green technique such as ultrasonication and microwave. All products have been characterized by IR, 1H NMR, and Mass spectral study and screened for their antimicrobial activity. © 2010 Elsevier Ltd. All rights reserved.

More S.S.,Yashwantrao Chavan Mahavidyalaya | Kadam R.H.,Shrikrishna Mahavidyalaya | Kadam A.B.,Jawahar Mahavidyalaya andoor | Shite A.R.,Yashwantrao Chavan Mahavidyalaya | And 2 more authors.
Journal of Alloys and Compounds | Year: 2010

CoAlxCrxFe2-2xO4 spinel ferrite systems (where x = 0.1 to 0.5 in steps of x = 0.1) were synthesized by wet chemical co-precipitation technique, aiming to study the relationship between cation distribution and concentration of the simultaneous substitution of Al3+ and Cr3+ ions. The Al3+ and Cr 3+ site occupancies show nearly linear composition dependence. The obtained results show, that both Al3+ and Cr3+ ions predominately occupy the octahedral B-site. This is consistent with their preference for large octahedral site energy. The concentration of Al 3+ and Cr3+ ions in octahedral sites increases while that of Fe3+ ions decreases linearly. © 2010 Elsevier B.V.

Patange S.M.,Shrikrishna College | Shirsath S.E.,Dr Bam University | Lohar K.S.,Shrikrishna College | Jadhav S.S.,Dsm College | And 2 more authors.
Physica B: Condensed Matter | Year: 2011

Nickel-aluminum ferrite system NiAlxFe2-xO 4 has been synthesized by wet chemical co-precipitation method. The samples were studied by means of X-ray diffraction, d.c. electrical resistivity, a.c. electrical resistivity, a.c. conductivity and switching properties. The XRD patterns confirm the cubic spinel structure for all the synthesized samples. The crystallite size calculated from XRD data which confirm the nano-size dimension of the prepared samples. Electrical properties such as a.c. and d.c. resistivities as function of temperature were studied for various Al substitution in nickel ferrite. The dielectric constant and dielectric loss tangent were also studied as a function of frequency. The dielectric constant follows the MaxwellWagner interfacial polarization. A.C. conductivity increases with increase in applied frequency. The d.c. resistivity decreases as temperature increases, which indicate that the sample have semi-conducting nature. Verwey hoping mechanism explains the observed variation in resistivity. The activation energy is derived from the temperature variation of resistivity. Electrical switching properties were studied as IV measurements. The current controlled negative resistance type switching is observed in all the samples. The Al substitution in nickel ferrite decreases the required switching field. © 2010 Elsevier B.V. All rights reserved.

Hankare P.P.,Shivaji University | Jadhav B.V.,Shivaji University | Garadkar K.M.,Shivaji University | Chate P.A.,Jsm College | And 2 more authors.
Journal of Alloys and Compounds | Year: 2010

Nickel selenide thin films have been deposited using chemical bath method on non-conducting glass substrates in a tartarate bath containing nickel sulphate octahydrate, hydrazine hydrate, sodium selenosulphate in an aqueous alkaline medium. The grown films were uniform, well adherent and black in color. The films were characterized using X-ray diffraction, scanning electron microscopy, optical absorption and electrical measurements. The nickel selenide thin film revealed polycrystalline nature with hexagonal system. The direct optical band gap of the film was found to be 1.61 eV. Electrical resistivity of film was observed in the order of 103 (Ω cm) with p-type conduction mechanism. © 2009 Elsevier B.V. All rights reserved.

Wasadikar M.,Dr Bam University | Survase P.,Dr Bam University
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) | Year: 2012

In this paper, we study some graphs which are realizable and some which are not realizable as the incomparability graph (denoted by Γ′(L)) of a lattice Lwith at least two atoms. We prove that for n ≥ 4, the complete graph Kn with two horns is realizable as Γ′(L). We also show that the complete graph K3 with three horns emanating from each of the three vertices is not realizable as Γ′(L), however it is realizable as the zero-divisor graph of L. Also we give a necessary and sufficient condition for a complete bipartite graph with two horns to be realizable as Γ′(L) for some lattice L. © 2012 Springer-Verlag.

Pachpatte D.B.,Dr Bam University
Journal of Applied Analysis | Year: 2010

The main objective of the present paper is to study some basic qualitative properties of solutions of a certain nonlinear integrodifferential equation on time scales. The tools employed in the analysis are based on the applications of the Banach fixed point theorem and a certain inequality with explicit estimate on time scales. © de Gruyter 2010.

Ingle V.A.,Dr Bam University
3rd Nirma University International Conference on Engineering, NUiCONE 2012 | Year: 2012

Unstructured data are those that have no predetermined form or structure and are full of textual data. It does not fit well into relational tables. Most enterprise data today can actually be considered unstructured. Typical unstructured systems include emails, reports, contracts, transcripts of telephone conversations, and other communications. Web pages also contain links and references to External, often unstructured content such as images, XML files, animations and databases. This paper focuses on extracting features in html pages by using tokenization and Non matrix factorization. Classification of text is done using bag of words approach. The workbench is dataset collected in university domain web pages. © 2012 IEEE.

Mene R.U.,Srtm University | Mahabole M.P.,Srtm University | Sharma R.,Dr Bam University | Khairnar R.S.,Srtm University
Vacuum | Year: 2011

This paper investigates the effect of swift heavy ion (SHI) irradiation on surface morphology of Hydroxyapatite (HAp) thick films and modification in gas sensing characteristics. The HAp nanopowder is synthesized by wet chemical process and the thick films are prepared by screen printing technique. These films are irradiated with Ag7+ ions with energy of 100 MeV at different fluences ranging from 3 × 1010 to 3 × 10 13 ions/cm2. X-ray diffraction and atomic force microscopy tools are employed to examine the phase and surface modification in HAp thick films due to swift heavy ion irradiation. The ion irradiation study shows that crystallinity decreases and grain size changes with increase in ion fluence. A precise study on gas sensing is carried out to confirm operating temperature of HAp thick film sensor to detect CO gas. Saturation region of the film with increasing gas concentration and other parameters such as response and recovery time are also investigated from the point of view of using HAp films as a sensor device. SHI irradiated HAp thick film shows enhancement in the gas response and saturation limit for CO gas. Furthermore, the irradiated HAp film shows fast response and recovery time for CO gas. The study concludes that nanoceramic HAp thick film is an excellent CO gas sensor at an operating temperature of 195 °C. © 2011 Elsevier Ltd. All rights reserved.

Niket Borade S.,Dr Bam University | Adgaonkar R.P.,Dr Bam University
ICBEIA 2011 - 2011 International Conference on Business, Engineering and Industrial Applications | Year: 2011

Face recognition is one of the most successful applications of image analysis and understanding and has gained much attention in recent years. This paper presents comparative analysis of two most popular appearance-based face recognition methods PCA (Principal Component Analysis) and LDA (Linear Discriminant Analysis). It is generally believed that algorithms based on LDA are superior to those based on PCA. In this paper we show that this is not always the case. Our conclusion is that when the training data set is small, PCA can outperform LDA and, also, that PCA is less sensitive to different training data sets. © 2011 IEEE.

Late A.M.,Dr Bam University | Mule M.B.,Dr Bam University
International Journal of Environmental Research | Year: 2014

The exponential growth of urbanization leads to increase in severity of environmental problems especially assonated with disposal of solid waste. With considering the increasing rate of solid waste generation in urban area, the problem of availability of space required to dispose it off is become a concern for planners and administrators of urban local bodies (ULB). In order to cope up with the urge of availability of dumping space to adopt the aerobic composting technique for the degradable fraction of solid waste is become unavoidable. The present paper is an attempt to study the feasibility of aerobic composting technique by using metallic container for waste generated from Aurangabad city of Maharashtra state. The study was carried out for a period of one year with monitoring of selected parameters. The results reveals that for conversion of waste into compost of better quality requires 40-45 days. Whereas the NPK value of prepared compost resemble with international standards.

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