Materials Literature
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Abstrak Pembuatan kaca fosfat dengan komposisi kimia x ZnO – 30 MgO – ( 70 – x ) P2O5 dengan x = 0, 5, 10, dan 15 mol% telah dilakukan menggunakan teknik melt quenching. Sistem kaca yang dibuat dikarakterisasi menggunakan difraksi sinar-X ( XRD ), pengujian sifat fisik dengan metode Archimedes, dan spektrofotometer UV…
Classical molecular dynamics (MD) simulations coupled with metadynamics (MTD) simulations were used to investigate lysozyme unfolding in physiological 0.154 M NaCl salt concentration as well as in 0.5 and 1 M NaCl salt solutions. It was found that lysozyme unfolding dynamics is strongly dependent on the salt concentra…
The realization of single-electron sources in integer quantum Hall systems has paved the way for exploring electronic quantum optics experiments in solid-state devices. In this paper, we characterize a single Kramers pair emitter realized by a driven antidot embedded in a two-dimensional topological insulator, where s…
Mesenchymal stem cells (MSCs) transplantation for the treatment of acute hindlimb ischemia is recently attracting the attention of many scientists. Identifying the role of donor cells in the host is a crucial factor for improving the efficiency of treatment. This study evaluated the injury repair role of xenogeneic ad…
The refractory metal carbides were deposited on carbon steel and fibers by currentless transfer in molten salts at temperatures 1073-1123 K. The microhardness of refractory metal carbides on carbon steels at the cross section had the values 21 GPa, 29 GPa, 31 GPa for Cr7C3, NbC and TaC, respectively. The corrosion res…
Motivated by the existing controversy about the physical mechanisms that govern longitudinal magnetization dynamics under the effect of ultrafast laser pulses, in this paper we study the microscopic model of longitudinal spin excitations in a two-sublattice ferrimagnet using the diagrammatic technique for spin operato…
ETHANOL dehydration over Fe2O3-CeO2 nanocomposite with …… different Fe2O3 wt% loadings was investigated. For comparison the pure Fe2O3 and CeO2 were also prepared. The different nanocomposite samples were prepared via a novel modified co-precipitation method. Pure Fe2O3 and CeO2 were prepared by conventional chemical…
This article describes and evaluates the basic properties and the damp heat (85% RH , 85℃) aging behaviour of a 400 µm thick titanium dioxide filled polyoxymethylene film for potential use as backsheet in photovoltaic (PV) modules. The polyoxymethylene monolayer was characterized using analytical methods and technolog…
We study the molecular penetration depth variation with the SMBI fluxes. The molecular transport process and the penetration depth during SMBI with various injection velocities and densities are simulated and compared. It is found that the penetration depth of molecules strongly depends on the radial convective transp…
The structure, electronic structure, states density and optics properties of the orthorhombic CH3NH3Pb[Formula: see text]I3 perovskite with vacancy at the B sites are calculated by the CASTEP program. The calculated results indicate that the cell volume shrinks with the content of vacancy at the B sites increasing, an…
We show that by integrating out the electric field and incorporating proper boundary conditions, a Boltzmann equation can describe electron transport properties, continuously from the diffusive to ballistic regimes. General analytical formulas of the conductance in D = 1,2,3 dimensions are obtained, which recover the…
Fresnel Zone Plate lens (FZPL) antennas working in the V and W band are reported in this paper with half and quarter phase correction respectively. A low cost and straightforward technological process is used to manufacture the dielectric lenses using only one foam material where the dielectric constant is controlled.…
An optimization study of heat-assisted magnetic recording (HAMR) media optical and thermal designs is presented. A simplified stack with five component layers is used, which allows a systematic exploration of their optical and thermal properties parameter space. The optimum HAMR media design maximizes the downtrack te…
The article presents a conceptual analysis of the feasibility of lead–bismuth coolant application for cooling the melting unit steel vessel designed for implementation of a new efficient radwaste reprocessing technique. In support of the lead–bismuth coolant feasibility, the main advantages and specific features of it…
Novel hydrogel systems based on starch‐g‐poly(sodium‐2‐acrylamido‐2‐methyl‐1‐propane sulfonate‐co‐methacrylic acid) [starch‐g‐poly(AMPSNa‐co‐MAA)] has been prepared through graft copolymerization of AMPSNa and MAA onto starch chains. Characterization of these hydrogels is carried out using Fourier transform infrared (…
Semiconductor-liquid junctions are ubiquitous in photoelectrochemical approaches to artificial photosynthesis. By analogy with the antennae and reaction centers in natural photosynthetic complexes, separating the light-absorbing semiconductor and electrocatalysts can improve catalytic efficiency. A catalytic layer can…
High-speed videos of oil-coated solid spheres falling through an aqueous solution were analyzed to determine the amount of oil separated and the velocity of the coated sphere during free fall. The oil-coated sphere configuration is relevant to understanding the recovery of oil from oil sands; hence, bitumen was used a…
Microdeflectometry is a powerful noncontact tool for measuring nanometer defects on a freeform surface. However, it requires a time-consuming process to take measurements at different depths for an extended depth of field (EDOF) and lacks surface information for integrating the measured gradient data to height. We pro…
Remarkably enhanced light emission efficiency of AlGaN multiple quantum wells (MQWs) was realized by growing on an n-AlGaN underlying layer (UL). The parasitic peaks emitting from inactive regions can be effectively suppressed, and the nonradiative recombination process in AlGaN MQWs proved to be substantially lessene…
In this paper, we investigate the bichromatic coherent random lasing actions from the dye-doped polymer stabilized blue phase liquid crystals. Two groups of lasing peaks, of which the full widith at half maximum is about 0.3 nm, are clearly observed. The shorter- and longer-wavelength modes are associated with the exc…