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18 articles for “Dielectric properties”
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Research ArticleOpen accessPhrase in the titleDielectric Properties of Ni0.2Zn0.8Fe2O4-Polypropylene CompositesTan Foo Khoon, Jumiah Hassan, Nurhidayaty Mokhtar et al.Problem statement: In the last decade, the studies and investigation on polymer-based composites have drawn significant attention owing to improvement in their mechanical, thermal, electrical, optical and pharmaceutical properties as compared with pure polymer. Approach: Different compositions of Ni0.2Zn0.8Fe2O4 (NZF) and Polypropylene (PP) can alter the useful properties of polymer-based composites. Hence, the determination toward significant percentage of NZF added … …American Journal of Applied Sciences, Vol. 7, Issue 9 · 30 Sep 2010 · 7,947 accessesView PDFCite
Research ArticleOpen accessPhrase in the titleEffects of ZnO on Dielectric Properties and Electrical Conductivity of Ternary Zinc Magnesium Phosphate GlassesS. F. Khor, Z. A. Talib, H. A.A. Sidek et al.Five different compositions of the ternary system (ZnO)x(MgO)30(P2O5)70-x containing 8, 10, 13, 15 and 18 moL% of ZnO were prepared by the melt quenching technique. The complex permittivity studies were presented in the frequency range of 0.01 Hz to 1 MHz and over the temperature range of 303-573 K. The empirical data were analyzed by means of the curve-fitting technique … …American Journal of Applied Sciences, Vol. 6, Issue 5 · 31 May 2009 · 8,240 accessesView PDFCite
Research ArticleOpen accessPhrase in the titleEnhanced Dielectric Properties of Polyaniline/Silver/Carbon Nanotubes NanocompositeS. M. Reda, Sheikha M. Al-GhannamCurrent researches had shown that the electrical conductivity of most polymers depend on the method of its preparation and type of fillers. This research therefore aimed at studying the electrical properties of polyaniline carbon nanotubes nanocomposite prepared by hand mixing and decoration methods. The effect of preparation method on electrical properties of polyaniline containing Carbon Nanotubes (CNTs) and silver nanoparticles … …Current Research in Nanotechnology, Vol. 4, Issue 1 · 13 Jan 2014 · 7,019 accessesView PDFCite
Research ArticleOpen accessPhrase in the titleDielectric Properties of Collagen on Plasma Modified Polyvinylidene FluorideR. M. Dahan, S. I. Ismail, Famiza Latif et al.Problem statement: The attachment of biopolymers such as collagen on inert polymeric template created great challenge due to hydrophobic nature of polymeric material. The modification of PVDF for improved adhesion and introduction of specific functionalities have been widely recognized in various industrial applications. Typical methods for modifying polymer surface such as chemical etching and UV irradiation are not favorable as … …American Journal of Applied Sciences, Vol. 9, Issue 5 · 5 Mar 2012 · 7,986 accessesView PDFCite
Research ArticleOpen accessIn the keywordsStudy on Optical Constants and Refractive Index Dispersion of Neutral red Doped Polymer FilmHussain A. BadranProblem statement: The some optical constants polymer thin film with red dye 3-amino-7-dimethylamino-2-methyl phenazine (NR) as the guest material and Polyvinylpyrrolidone (PVP) as the host material were prepared by adulteration and spin-coating methods. Approach: The values of some important parameters (refractive index n, extinction coefficient K and dielectric constant ε∞) of polymer thin film are determined from these spectra. Results: … …American Journal of Applied Sciences, Vol. 9, Issue 2 · 26 Dec 2011 · 8,919 accessesView PDFCite
Research ArticleOpen accessIn the abstractFormation Mechanism and Characterization of PANI Nanoparticles by Hybrid Chemical and Gamma Irradiation TechniqueShawkat Salameh GasaymehHere we present additional data regarding specific doping process in nanoparticle samples of PANI. In such technique, the ionizing γ-irradiation and (dodecylbenzenesulfonic acid), DBSA were being used as dopants and as accelerators to the oxidizing agent to polymerize aniline monomer into conductive PANI Emeraldine Salt (ES), in which PANI was produced from its monomer by this noble methodology by a … …American Journal of Applied Sciences, Vol. 15, Issue 12 · 13 Feb 2019 · 8,381 accessesView PDFCite
Research ArticleOpen accessIn the abstractModelling the Interaction between the Antenna and the Human Head by the Technique of Artificial Neural NetworkNizar Sghaier, Lassaad Latrach, N. Sboui et al.The purpose of this study is the study and modeling of phenomenon 'interaction between the antenna and the human body' by the Artificial Neural Network (ANN). This technique is based on mathematical formulations and a base of learning who took simulations by noted trade CST MS. An example of the interaction between a body, which the dielectric properties are given … …American Journal of Engineering and Applied Sciences, Vol. 8, Issue 3 · 3 Jun 2015 · 7,422 accessesView PDFCite
Research ArticleOpen accessIn the abstractDIELECTRIC CHARACTERIZATION OF LIQUID CONTAINING LOW ALCOHOLIC CONTENT FOR POTENTIAL HALAL AUTHENTICATION IN THE 0.5-50 GHz RANGEZurina Zainal Abidin, Fatin Nordalila Omar, Pavithiran Yogarajah et al.A potential method for detection and discrimination of alcoholic containing drinks for halal authentication using dielectric properties has been investigated. Behaviors of several pure alcohols, alcohol solution in water and also liquids with alcoholic contents were studied for verification purpose. Dielectric constant and dielectric loss factor for low concentration of ethanol solutions were measured over the microwave frequency from 0.5 … …American Journal of Applied Sciences, Vol. 11, Issue 7 · 24 Apr 2014 · 7,671 accessesView PDFCite
Research ArticleOpen accessIn the abstractREVIEW OF GRAVITATIONAL WAVE DETECTIONS: DYNAMICAL SPACEReginald Thomas CahillThis is a review of the numerous successful gravitational wave detections and the implications for the nature of space and time. The prevailing space time paradigm in physics was founded on the putative "null" results of the Michelson-Morley (MM) 1887 interferometer experiment to detect light speed anisotropy and which resulted in two different new relativity theories: Lorentz relativity (Lorentz, 1904) … …Physics International, Vol. 5, Issue 1 · 27 Mar 2014 · 8,007 accessesView PDFCite
Research ArticleOpen accessIn the abstractTunability Performance of Reflectarrays Based on Non-Linear Material PropertiesM. Y. Ismail, M. Hashim DahriLimited phase range and narrower bandwidth are the main performance limitations of reflectarray antennas for high gain applications which result in the performance to be restricted particularly in satellite and earth observatory systems. This study provides a thorough investigation on the tunability performance of reflectarrays designed in X-band frequency range using different non-linear dielectric substrates. An investigation of phase agility … …American Journal of Engineering and Applied Sciences, Vol. 6, Issue 1 · 6 Feb 2013 · 7,450 accessesView PDFCite