Materials Literature
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To realize the speaker diaphragm that can be united with a flexible display without deteriorating lightweight properties and flexibility, a novel bendable electro-acoustic transducer (BEAT) based on 0–3-type piezoelectric composites has been developed. To overcome the trade-off between flexibility and the transmission…
A novel Zr-1Nb has begun development based on a working model that takes into account the hydrogen permeabilities for zirconium and niobium metals. The beta-Nb secondary phase particles (SPPs) in Zr-1Nb are believed to promote more rapid hydrogen dynamics in the alloy in comparison to other zirconium alloys. Furthermo…
Oleh sebab kejadian jenayah bersenjata api semakin berleluasa, pengecaman senjata api yang digunakan oleh penjenayah amat diperlukan sebagai bahan bukti dalam mahkamah. Beberapa sistem pengecaman senjata api telah diutarakan sebagai pengganti kepada cara penyiasatan tradisional yang amat bergantung kepada kepakaran ah…
The effect of far-field uniform flow on the morphological evolution of a spherical particle in a supersaturated solution affected by a far-field uniform flow is studied by using the matched asymptotic expansion method. The analytical solution for the interface shape, concentration field, and interface velocity of the…
A composition-modulated (HfO 2 ) x (Al 2 O3) 1− x charge trapping layer is proposed for charge trap flash memory by controlling the Al atom content to form a peak and valley shaped band gap. It is found that the memory device using the composition-modulated (HfO 2 ) x (Al 2 O 3 ) 1− x as the charge trapping layer exhi…
Thick-film resistors are widely used passive components. Considering circuit design and layout, decoupling the resistance from geometry is desirable. Inkjet printing offers an approach to reach this aim by allowing for in-process blending of resistor inks. To model the electric behavior of printed resistors, a conduct…
Unintentionally doped GaN films grown by MOCVD were irradiated with neutrons at room temperature. In order to investigate the influence of neutron irradiation on the optical properties of GaN films, persistent photoconductivity (PPC) and low temperature photoluminescence (PL) measurements were carried out. Pronounced…
: Background : Radon is a radioactive gas and the second leading cause of death due to lung cancer after smoking. Ramsar is known for having the highest levels of natural background radiation on earth. Materials and Methods : In this research study, 50 stations of high radioactivity areas of Ramsar were selected in wa…
We demonstrate the existence of a hidden degree of freedom controlling the orbitalordering in [LaTiO1/[LaAlO5 multilayers with comprehensive density-functional theorycalculations. The orbitals of two-dimensional (2D) 3d1state of Ti atoms in the multilayers alwayscontain large dxy components, which is unexpected from c…
The enrichment of Fe during aluminium recycling increases the quantity of Fe-rich intermetallics formed, particularly ß-Al5FeSi, limiting the usage of recycled Al in many fatigue-sensitive applications. In this study, fast synchrotron x-ray tomography was used to investigate microstructure evolution and defect formati…
Infrared reflectivity measurement is carried out for AlN films on sapphire substrates. The frequencies of the symmetry optical phonon E1(TO) in the temperature range from 77 K to 500 K are reported by fitting the experimental reflectivity with the classical multi-oscillators model. Taking the lattice thermal expansion…
We demonstrate theoretically and experimentally the difference between the band compression mechanisms of plasmonic gratings and plasmonic heterogratings. The plasmonic grating can pick out a fixed polarization bandwidth with changing the incidence angle, while the plasmonic heterograting composed of two different nan…
The aim of this paper was to study the influence of different input materials and methods of treatment on the microstructure, mechanical properties and fracture of dispersion strengthened aluminium alloys in the Al-Al4C3 system. It was proved that the transformation efficiency of carbon to Al4C3 by heat treatment of a…
The present work describes an experimental evaluation of yield strength, tensile strength, initiation fracture toughness and Finite element simulations of fracture behaviour for both bulk and ultrafine-grained (UFG) 7075 Al Alloy. The 7075 Al alloy has been rolled for different thickness reductions (40%, 70% and 90%)…
Abstrak Vitamin C berfungsi sebagai kofaktor enzyme prolil dan lysil hydroxilase. Enzym tersebut berfungsi dalam proses hidroksilasi yang membentuk ikatan hidroksiprolin dan hidroksilisin pada fibroblast dalam membentuk kolagen. Selain itu Vitaimin C juga berfungsi meregulasi dan menstabilkan trankripsi gen mRNA proko…
The influence factors of hydrothermal treatment on the formation process of ZnO nanorods are investigated involving with hydrothermal temperature, time and precursor concentration. The as-obtained products were characterized by Scanning Electron microscope (SEM) and X-ray diffraction (XRD), respectively. XRD result in…
Six new dicarboxylic acids 3a-f were synthesized by the reaction of 3,3,4,4-biphenyltetracarboxylic dianhydride (BPDA) 1 with L-amino acids 2a-f in a solution of glacial acetic acid/pyridine (Py) at refluxing temperature. Then six new optically active poly(amide-imide)s (PAI)s with good inherent viscosities were synth…
A methodology to derive the elasto-plastic behavior of thin films under thermal cycling is presented. This approach utilizes wafer curvature characterization technique and finite element simulations. The material behavior is modeled with continuum plasticity, and includes Bauschinger effect and cyclic behavior. In ord…
The coffee flavor compounds acquire a significant place in the improving the flavor of cigarette. In the present paper, the heuristic method is used to develop quantitative relationships between the retention time (TR) and four molecular descriptors of 52 compounds. The model of heuristic method gives good statistical…
Abstract In this paper, we describe the new concept of design, synthesis, and application of nanostructured anisotropic materials and conductive and alignment coatings for high efficient displays and photonic devices. It is based on the original combination of anisotropic and nanostructured materials, conductive and a…