Materials Literature
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In this study, the AlN buffer layer grown onc-plane sapphire (Al2O3) substrates by metal–organic chemical vapor deposition (MOCVD) was controlled by a preflow of the NH3source. With the treatment of NH3preflow, the monolayer of AlN was formed on the surface of a sapphire substrate by the decomposition of the NH3source…
This study investigated the damage caused by sub-millimeter debris impact on the structures of unmanned spacecraft owing to the increase in the amount of sub-millimeter debris in the low earth orbit. Panel structures are mainly made of honeycomb sandwich panels, and the chassis of electronic devices are mounted on the…
We have successfully prepared monodisperse poly[methacryloxypropyl Tris(trimethylsiloxy)silane] (poly-TRIS) microspheres by employing the Shirasu porous glass (SPG) membrane emulsification technique. The preparation was carried out by preparing TRIS monomer-contained oil-in-water (O/W) emulsions first and exposing to…
A photosensitive emission polymer containing trimethylolpropane triacrylate as reactive monomer, Norrish I and II photo-initiators, pentaerythritol tetrakis (2-mercaptoacetate) as photo-sensitizer, and bis (n-salicylidene-4, 4'-diaminophenyl) methane named H2L1 and Alq3 as emitters were studied in this paper. The UV-v…
In this paper, bipolar resistive switching was investigated in our fabricated Ti/Si3N4/p+-Si resistive random access memory (RRAM) devices. Heavily doped p-type Si was used instead of a conventional bottom electrode (BE) using metal such as Pt. We found that forming-free process, self-compliance and gradual reset were…
We study nitrogen-doping effects on the energetics and electronic properties of titanium dioxide (TiO2) at high doping concentrations using the first-principles electronic-structure study. From the defect formation energies obtained, it is confirmed that nitrogen atoms should tend to be clustered in the heavily-doped…
In this study, we synthesised silica aerogel composites using SiO2 nanoparticles and studied the effects of surface modification of silica nanoparticles on the properties of silica aerogel composites. The surface condition of the silica nanoparticles was controlled to be either hydrophobic or hydrophilic. Accordingly,…
Cube shaped CaSn(OH)6 particles were prepared at room temperature in aqueous medium. The samples showed blue light emission upon UV excitation. Luminescence studies have confirmed that blue emission from the sample is arising due to self trapped exciton-hole recombination. XRD and luminescence studies have revealed th…
Abstract The spatial distribution of charge recombination in blue phosphorescent organic light‐emitting diodes with linearly graded, step‐graded and uniformly mixed host architectures was identified by selective doping of the emissive layer. Using TCTA and UGH‐3 for hole and electron transporting hosts in the emitting…
Stainless steel AISI 316L merupakan salah satu material teknik yang digunakan sebagai biomaterial terutama untuk aplikasi implan tulang. Upaya perbaikan sifat mekanisnya sangat diperlukan untuk meningkatkan kehandalannya. Penelitian ini bertujuan untuk mengembangkan teknologi nitridasi gas temperatur tinggi (high temp…
The distribution of active sites on a nitrided CoMo/Al2O3 catalyst was studied based on a non-parametric determination method using the conversion rate of hydrodesulfurization of dibenzothiophene. This method makes use of a Fredholm integral equation of the first kind and provides the activity distribution of the cata…
A novel plasmonic waveguide filter design based on three cascaded slot cavities is proposed. The cascaded nanocavities support a united resonant(UR) mode. Light is trapped in the middle nanocavity at telecommunication wavelength(1550 nm) when the UR mode exists. This phenomenon leads to the efficient transmittance and…
Fe-6.5%Si(mass fraction) alloy possess perfect magnetic properties,though intermetallics of Fe_(14)Si_2 phase brought 6.5%Si leads to room temperature brittleness and hinder this significant materials industrialization.Nb was adopted into micro-alloying of Fe-6.5%Si high silicon steel. OM,thermal simulated test machin…
Thin films were prepared on a well cleaned glass substrate by economically simple chemical bath deposition (CBD) technique at 70 ± 5oC. In this paper, reports that the most important semiconductors materials from II – IV groups cadmium sulfide (CdS) thin films doped with different materials at same concentration. Copp…
CO 2 emission is considered one of the major causes of climate change.The control of CO 2 emission is of prime importance.In this thesis, the current researches and progress on the CO 2 capture and CO 2 capturing materials are reviewed.Polyethylenimine (PEI) has been used as an active species for the preparation of CO…
Manganese cobalt nickel complex oxide is a thermal-sensitive material with the property of semiconductor. In this paper, Mn1.74Co0.72Ni0.54O4 (MCN) thin film was prepared in air using metal-organic-deposition method at room temperature on Si substrate, and the crystallization synthesis of the MCN thin film was prepare…
An accurate, highly sensitive, precise, simple, efficient and reproducible, isocratic Reversed Phase-High Performance Liquid Chromatography (RP-HPLC) method was developed and validated for the quantitative determination of anastrozole in pharmaceutical tablet dosage forms. RP-HPLC method was developed by using Welchro…
A novel macro-cell-method (MCM) has been proposed, which is capable of accurately extracting the dispersion characteristics of 1D reciprocal microwave structures with finite periodicity. In practice a single macro-cell consists of multiple periodic unit cells, therefore the electromagnetic coupling effects among unit…
Eind 19e eeuw werd in Nederland de laatste wolf (Canis lupus) geschoten en in de 20ste eeuw was de wolf in bijna geheel Europa uitgeroeid. Vanaf het einde van de 20ste eeuw is de wolf echter bezig aan een opmars vanuit de resterende brongebieden in onder andere Spanje, Italie, Griekenland, de Balkan en verder noordeli…
We investigate via Monte Carlo numerical simulations and theoretical considerations the outflux of random walkers moving in an interval bounded by an interface exhibiting channels (pores, doors) which undergo an open/close cycle according to a periodic schedule. We examine the onset of a limiting boundary behavior cha…