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198 results for “Glass”
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Research ArticleOpen accessEvery word in the titleThe Estimation of the Oxide Ion Polarizability for B2O3-Li2O-Mo Glass SystemEl-Sayed Moustafa, Farid ElkhatebProblem statement: Recently Optical electro negativity of many binary oxide glasses has been evaluated on the basis of two different parameters, the linear refractive index and the energy gap, which have demonstrated remarkable correlation. Approach: In the present study, an improvement method to estimate the oxide ion polarizability through the average optical electro negativity for the lithium borate metal (Mo) … …American Journal of Applied Sciences, Vol. 9, Issue 3 · 2 Feb 2012 · 7,065 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleSungai Mas and OC-EO Glass Beads: A Comparative StudyZuliskandar Ramli, Nik Hassan Shuhaimi Nik Abd. Rahman, Adnan JusohProblem statement: Sungai Mas, Kedah, Malaysia and OC-EO, Vietnam, was two of the Indo-Pacific beads making centre’s in Southeast Asia. The drawn monochrome glass beads or Indo-Pacific beads industry begun in Arikamedu, India since 200BC was identified by Ptolemy as Poduca Emporium, with the presence of a small colony of Roman merchants. Arikamedu was abandoned by the 3rd century and … …Journal of Social Sciences, Vol. 8, Issue 1 · 28 Oct 2011 · 8,491 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleNew approach between the Optical Basicity and the Dielectric Constant through the Molar Polarizability for Some Binary GlassesEl-Sayed MoustafaProblem statement: In the present study, a new correlation between the optical basiciry which describes the electronic charge clouds around the oxide glass and the dielectric constant has been proposed through the molar polarizability of the binary oxide glasses. Approach: Two experimental forms have been suggested relating the optical basicity and the molar electronic polarizability. Hence, the dielectric constant and … …Physics International, Vol. 2, Issue 1 · 26 Oct 2011 · 7,764 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleOptical and Physical Properties of Bismuth Borate Glasses Doped With Dy3+Pichet Limsuwan, Jakrapong Kaewkhao, Parnuwat Chimalawong, Smit InsiripongThis study reports on physical and optical properties of Dy3+ doped bismuth borate glass. The glasses containing Dy3+ in (70-x)B2O3:30Bi2O3:xDy2O3 (where x = 0.0-2.5 mol%) have been prepared by melt-quenching method. In order to understand the role of Dy2O3 in these glasses, the density, molar volume and optical spectra were investigated. The results show that molar volume of the glasses … …American Journal of Applied Sciences, Vol. 8, Issue 6 · 13 Jun 2011 · 7,355 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleChloride Penetration Resistance Studies on Concretes Modified with Alkali Resistant Glass FibersK. Chandramouli, P. Srinivasa Rao, N. Pannirselvam et al.Problem statement: This research study presented the durability performance of glass fibre reinforced concrete. Approach: The influence of fiber content on the durability performance of glass fibre reinforced concrete specimens having different percentage of glass fibres with varying grades of concrete were investigated. Results: The parameter of investigation included rapid chloride permeability test for a period of 365 days. Specimens … …American Journal of Applied Sciences, Vol. 7, Issue 3 · 31 Mar 2010 · 7,253 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleSynthesis and Optical Properties of ZnO-TeO2 Glass SystemH. A.A. Sidek, S. Rosmawati, Z. A. Talib et al.Problem statement: Systematic series of ZnO-TeO2 glasses with mole fraction of 0.10-0.40 ZnO content with an interval of 0.05 were studied to obtain their physical and optical properties. Approach: All the glass samples were synthesized by rapid melting quenching method under controlled conditions, while their refractive indices (n) were measured by the EL X-02C high precision ellipsometer. The room temperature … …American Journal of Applied Sciences, Vol. 6, Issue 8 · 31 Aug 2009 · 14,077 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleAutomatic Glass-Slide Capturing System for Cervical Cancer Pre-Screening ProgramNor Rizuan Mat Noor, Nor Ashidi Mat Isa, Mohd Yusoff Mashor et al.Clinical glass-slide capturing system is becoming an important part of telemedicine, medical database and diagnostic system that involves of microscope and image acquisition device which is digital camera. One of the areas of interest is slide capturing system for cervical cancer pre-screening program. An automated microscope with FireWire digital camera will be used to acquire the image and store in … …American Journal of Applied Sciences, Vol. 5, Issue 5 · 31 May 2008 · 6,911 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleIR Laser Plasma Interaction with GlassRabia Qindeel, Noriah Bidin, Yaacob Mat DaudThe interaction of laser plasma with respect to glass surface is reported in this paper. A Q-switched Nd:YAG laser was used as ablation source. Glass material is utilized as target specimen. Aluminum plate is used as a rotating substrate. The dynamic expansion of the plasma was visualized by using CCD video camera and permanently recorded via image processing system. The … …American Journal of Applied Sciences, Vol. 4, Issue 12 · 31 Dec 2007 · 6,915 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleStructural Analysis of Borotellurite GlassM.K. Halimah, W.M. Daud, H.A.A. Sidek et al.The average cross-link density, number of the network bonds per unit volume, average stretching force constant, atomic ring size and the ratio Kbc/Ke have been calculated and discussed according to bond compression model for borotellurite glass. The result showed that the connectivity and rigidity of the borotellurite glasses increases with TeO2 content due to the transformation of BO3 units to … …American Journal of Applied Sciences, Vol. 4, Issue 5 · 31 May 2007 · 7,722 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleUltrasonic Study and Physical Properties of Borotellurite GlassesW.M. Daud, H. Zainul, Z.A. Talib et al.A series of glasses (TeO2)x (B2O3)1-x with x = 0.6, 0.63, 0.65, 0.70, 0.73, 0.75, 0.78 and 0.80 were synthesized by rapid quenching. Longitudinal and shear ultrasonic velocity were measured at room temperature and at 5 MHz frequency. Elastic properties, Poisson’s ratio and micro hardness have been calculated from the measured density and ultrasonic velocity at room temperature. Estimated parameters … …American Journal of Applied Sciences, Vol. 2, Issue 11 · 30 Nov 2005 · 7,910 accessesView PDFCite