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83 articles for “mechanical structure”
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Research ArticleOpen accessIn the abstractNano-Diamond Hybrid Materials for Structural Biomedical ApplicationRaffaella Aversa, Relly Victoria V. Petrescu, Antonio Apicella, Florian Ion T. PetrescuThe development of new diamond based bio-mechanically active hybrid nano-structured scaffolds for cartilage cells tissue engineering are proposed in this study. Innovative tissue engineering biomimetic materials based on hydrogel have shown attractive physical, biological and mechanical properties in several biomedical applications. A highly biocompatible novel hybrid material based on nanodiamonds and hydrophilic poly-(hydroxyl-ethyl-methacrylate) (pHEMA) is proposed. The aim of this … …American Journal of Biochemistry and Biotechnology, Vol. 13, Issue 1 · 9 Mar 2017 · 9,183 accessesView PDFCite
Research ArticleOpen accessIn the abstractLiquid Crystalline Polymers Compatibilization and Adhesion Enhancement by Reactive Blending in Post-Consumers PET’sAversa Raffaella, Apicella AntonioA method for PET mechanical properties enhancement by reactive blending with HBA/HNA Liquid Crystalline Polymers for in situ highly fibrillar composites preparation is presented. LCP/PET blends were reactive extruded in presence of Pyromellitic Di-Anhydride (PMDA) and then characterized by Differential Scanning Calorimetry, Thermally Stimulated Currents and tensile mechanical properties. The formation of specific macromolecular structures, where the PET, the LCP … …American Journal of Engineering and Applied Sciences, Vol. 9, Issue 3 · 17 Jun 2016 · 8,186 accessesView PDFCite
Research ArticleOpen accessIn the abstractEffect of Nano-Alumina on Pore Structure and Durability of Class F Fly Ash Self-Compacting MortarEhsan Mohseni, Konstantinos Daniel TsavdaridisIn this study the effect of pore structure on the mechanical properties and durability characteristics of Self-Compacting Mortars (SCM) containing nano-Al2O3 (NA) and class F fly ash are investigated. Al2O3 nanoparticles with the maximum size of 15 nm in three different proportions of 1, 3 and 5% of the binder content were utilized to partially replace the cement. The 25% … …American Journal of Engineering and Applied Sciences, Vol. 9, Issue 2 · 14 Apr 2016 · 9,472 accessesView PDFCite
Research ArticleOpen accessIn the abstractQuantum Mechanical Calculation of the Optical Absorption of Silver and Gold Nanoparticles by Density Functional TheoryElham Gharibshahi, Elias SaionProblem statement: Metal nanoparticles confine the motion of conduction electrons and exhibit a strong optical absorption of electromagnetic radiation in the UV-vis-NIR region. The absorption is classically derived from the collective oscillations of free electrons in a metallic nanostructure as a consequence of incident electromagnetic radiation polarizing the particle optically embedded in a dielectric matrix. These oscillations, known as the … …Physics International, Vol. 1, Issue 1 · 31 Mar 2010 · 16,181 accessesView PDFCite
Research ArticleOpen accessIn the abstractImpedance Method Application for Multi-Layer Structure TestingMonzer Moh’D KrishanMulti-layer materials and structures are widely used in the modern aircraft industry. The main defect of these structures is delamination. The most appropriate method for detection of such kind flaws is the impedance testing method. This research is devoted to the features of the impedance method for multi-layer panel testing. The theoretical and experimental investigations of mechanical impedance are presented … …American Journal of Applied Sciences, Vol. 6, Issue 1 · 31 Jan 2009 · 7,282 accessesView PDFCite
Research ArticleOpen accessIn the abstractEffect of Heat Treatment Parameters on Distribution and Volume Fraction of Mg2Si in the Structural Al 6063 AlloyG. Al-MarahlehAluminum Profiles -Production by extrusion from aluminum billets require a certain degree of homogeneity because of the segregated second phase particles, which are available in the as cast structure of the billets. Worldwide practice suggests a long homogenizing process at elevated temperatures in order to achieve such condition. This study showed that profiles extruded from homogenized and unhomogenized billets did … …American Journal of Applied Sciences, Vol. 3, Issue 5 · 8 May 2006 · 7,783 accessesView PDFCite
Research ArticleOpen accessIn the abstractDevelopment of an Anthropomorphic Gripping Manipulator: The Analysis of Implementation MethodsIvan Vladimirovich Krechetov, Arkady Alekseevich Skvortsov, Pavel Sergeevich LavrikovThe object of the article is the study of implementation methods for the development of hardware-software engineering solutions in the field of the creation of a universal anthropomorphic gripper. Such technical solutions are intended to enable the adaptation and extensive use of advanced robotic systems in the natural environmental conditions formed by people through equipping them with anthropomorphic universal grippers … …American Journal of Applied Sciences, Vol. 12, Issue 11 · 17 Nov 2015 · 6,746 accessesView PDFCite
Research ArticleOpen accessIn the abstractDetermination of Natural Frequencies through Modal and Harmonic Analysis of Space Frame Race Car Chassis Based on ANSYSMohammad Al Bukhari Marzuki, Mohammad Hadi Abd Halim, Abdul Razak Naina MohamedSpace frame chassis the preferred choice of chassis design due to its low cost, high strength, lightweight and safe qualities, which made it suitable for a single-seat race car application and an important aspect in the construction of the space frame race car chassis. Key sections of a space frame race car chassis consist of front and main hoops, side … …American Journal of Engineering and Applied Sciences, Vol. 8, Issue 4 · 2 Sep 2015 · 9,913 accessesView PDFCite
Research ArticleOpen accessIn the abstractEffects of Adhesive on Coupling Efficiency of Planar Light Waveguide PackagingYang Bo, Duan Ji-anProblem statement: Advanced optoelectronic devices are a kind of key and basic components for next generation communication, untouched sensor, medical testing. They have lots of advantages including greater communication performance, larger capacity, and more fixable form. But light coupling and package structure seriously affects performance of optoelectronic devices. So a lot of attaching methods were proposed to package optoelectronic devices. … …Current Research in Nanotechnology, Vol. 1, Issue 2 · 21 Jun 2011 · 7,140 accessesView PDFCite
Research ArticleOpen accessIn the abstractLow-g Area-changed MEMS Accelerometer Using Bulk Silicon TechniqueBadariah Bais, Burhanuddin Yeop MajlisA bulk micromachined accelerometer based on an area variation capacitive sensing for low-g applications was developed. The accelerometer was designed with ribbed-style fingers structure on the movable mass connected in parallel and suspended over stationary electrodes composed of differential comb fingers by means of suspension beams anchored onto the substrate. A folded, rigid truss suspension design with low spring constant … …American Journal of Applied Sciences, Vol. 5, Issue 6 · 30 Jun 2008 · 7,630 accessesView PDFCite