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271 articles for “polymer”
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Research ArticleOpen accessEvery word in the titleThe Polishing of Cutting-Edge Polymer-on-Glass for Pigtailing PreparationMohammad Syuhaimi Ab-Rahman, Fazlinda Ab-Aziz, Noor Azie Azura Mohd Arif et al.Problem statement: The high quality of cutting-edge surface is important in optical waveguide's efficiency. The perfect polishing of end surface is significant to deliver the best quality of light waves and minimize the device losses such as insertion loss and return loss. Hence, this research is concern on the parameters in polishing SU-8 polymer to increase the efficiency of waveguide. … …American Journal of Engineering and Applied Sciences, Vol. 2, Issue 1 · 31 Mar 2009 · 9,148 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleA Novel Thermooptic Polymer Switch Based on Directional Coupler StructureAbu Sahmah Mohd Supa’at, Mohd. Haniff Ibrahim, Abu Bakar Mohammad et al.A novel thermooptic (TO) polymer switch based on directional coupler structure is proposed for the first time. The key element of the proposed switch is a buried square core polymer waveguides which has been designed for optimum mode matching and coupling with the single mode optical fiber configuration and have large effective index difference by the thermooptic effects. At a … …American Journal of Applied Sciences, Vol. 5, Issue 11 · 30 Nov 2008 · 6,374 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleA Control Strategy for Photovoltaic-Solid Polymer Electrolysis System Based on Surface Temperature of PV PanelRiza Muhida, Wahyudi, Rifki Muhida, Ahmad Unggul PriantoroProcesses to produce hydrogen from solar photovoltaic powered water electrolysis using solid polymer electrolysis are reported. An alternative control of maximum power point tracking method based on analysis of PV panel’s surface Temperature for the PV-SPE system was designed and implemented. From this analysis an optimal voltage of PV can be obtained and was realized as a reference voltage of … …American Journal of Applied Sciences, Vol. 5, Issue 7 · 31 Jul 2008 · 7,407 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleThe Effects of Crosslinker and Monomer to the Polymerization of Polymethacrylamide Gel Dosimeters by Direct and Indirect MethodsElias Saion, A. H. Shaari, M. Z.A. Rahman et al.Radiation-induced polymerization in Polymethacrylamide Gels (PMAAGs) potentially used for 3D dose verification in radiotherapy has been studied using both Raman spectroscopy and Nuclear Magnetic Resonance (NMR) method. The dosimeters are composed of aqueous Methacrylamide (MAA) monomer and N, N’ methyelene-bis-acrylamide (BIS) crosslinker at various concentrations from 2 to 6% (w/w) and gelatin at 6% (w/w). The dosimeters were irradiated to … …American Journal of Applied Sciences, Vol. 2, Issue 8 · 31 Aug 2005 · 7,168 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleReinforcing Effect of Strain Gauges on 3D Printed Polymers: An Experimental InvestigationSalvatore Brischetto, Roberto TorreStrain gauges are ordinary transducers for strain measuring; their operation relies on the electrical resistance, which varies as the underlying substrate is subjected to mechanical deformation. The mechanical strain can be obtained by converting the electrical signal through a gauge factor, provided by the manufacturer. It was demonstrated that its values are not unique; it may be influenced by the … …American Journal of Engineering and Applied Sciences, Vol. 14, Issue 1 · 9 Jan 2021 · 7,658 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleSynthesis and Characterization of Bio-based Polyurethane PolymersJahangir Emrani, Ramazan Benrashid, Shahrzad Mohtarami et al.This paper describes the development of new biobased Polyurethanes (PU) starting from swine manure bio-resin and diisocyanates. The bio-resin is produced from swine manure via a hydrothermal process. For sustainability, today, many PUs in new specialized applications, are biobased. In this study, different commercial diisocyanates including MDI, Desmodur W, Desmodur H and Demodur I and swine manure, which is an … …American Journal of Engineering and Applied Sciences, Vol. 11, Issue 4 · 28 Nov 2018 · 8,361 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleAC Analysis of PEO10LiCF3SO3 Polymeric Material for Memory Storage ApplicationMahmoud Z. IskandaraniProblem statement: Intelligent systems that need to accurately represent human brain requires analogue devices such as a neural switch that processes decision signals and can actually remember the made decision. Polymeric material such as PEO10LiCF3SO3, which previously used in high energy, long life storage batteries, is used here to implement the principle of storage with the required analogue memory. Approach: … …American Journal of Engineering and Applied Sciences, Vol. 3, Issue 1 · 31 Mar 2010 · 7,981 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleImpedance Analysis of Heat Treated Polyethylene Oxide Polymeric Material for a Neural Storage ApplicationMahmoud Z. IskandaraniProblem statement: From the early days of, researchers have developed electronic models of neurons designed to emulate neural behavior with electrical signals that mimic in some ways the measured potentials of biological neurons. Researchers interested in fabricating artificial neurons have long sought a simple and techniques to produce devices that efficiently store synaptic weights, which is behind holding a particular … …American Journal of Applied Sciences, Vol. 6, Issue 7 · 31 Jul 2009 · 7,085 accessesView PDFCite
Research ArticleOpen accessEvery word in the titlePolymer in Agriculture: a ReviewFrancesco Puoci, Francesca Iemma, Umile Gianfranco Spizzirri et al.In agricultural field, polymers are widely used for many applications. Although they were used, in the first time, just as structural materials (inhert polymers), in the last decades functionalized polymers revolutionized the agricultural and food industry with new tools for several applications. Smart polymeric materials and smart delivery systems helped the agricultural industry to combat viruses and other crop pathogens, … …American Journal of Agricultural and Biological Sciences, Vol. 3, Issue 1 · 31 Mar 2008 · 21,407 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleAnalysis of the Utility of MPT64, Drug Susceptibility Testing and Tuberculosis/Nontuberculous Mycobacteria Reverse Transcription Polymerase Chain Reaction for Tuberculosis Diagnosis and Efficiency Compared with Traditional CultureHo Keun Choi, Ga Yeon Kim, Tae Soung Kim, Jae Kyung KimDefining the molecular mechanisms underlying the dormant state of Mycobacterium tuberculosis (MTB) is essential for developing more effective treatments for tuberculosis (TB) infection. We investigated the positivity and resistance rates of TB tests on 6,174 samples referred to a single hospital. Of these, 342 cases (5.5%) were confirmed as positive by acid-fast bacilli staining, 243 cases (71.1%) were detected as … …American Journal of Biochemistry and Biotechnology, Vol. 20, Issue 4 · 5 Dec 2024 · 4,206 accessesView PDFCite