Materials Literature
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We performed fully ab initio calculations of carrier mobility in bulk 4H-SiC and at 4H-SiC/SiO2 interface containing some neutral point defects such as silicon and carbon substitutionals, carbon dimers, and oxygen interstitials using Green's functions technique. Obtained values are ∼10–80 cm2/V·s, which is in reasonab…
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Chromium films are frequently used as corrosion resistant coatings. Chromium coatings with a columnar structure deposited by magnetron sputtering demonstrate poor corrosion resistance. In this paper, a nanochromium coating with a non-columnar structure was deposited on 316L stainless steel by a direct current magnetro…
UNLABELLED: Autotrophic microorganisms are able to utilize carbon dioxide as their only carbon source, or, alternatively, many of them can grow heterotrophically on organics. Different variants of autotrophic pathways have been identified in various lineages of the phylum Crenarchaeota. Aerobic members of the order Su…
Thin coatings of poly(acrylic acid) (PAA) and poly(hydroxyethylmethacrylate) (PHEMA) were deposited onto carbon fibers by means of the electrospray ionization (ESI) technique in ambient air. These high-molecular weight polymer layers were used as adhesion promoters in carbon fiber–epoxy resin composites. Within the ES…
. Here, polydimethylsiloxane microspheres (≈1 μm diameter) are synthesized using ultrasonic spray pyrolysis, the first demonstration of a scalable synthetic procedure for crosslinked silicone microspheres. This continuous, aerosol process is also used to directly produce fluorescent, magnetic, and copolymeric derivati…
The pure shear deformation of the Tetra-polyethylene glycol gels reveals the presence of an explicit cross-effect of strains in the strain energy density function even for the polymer networks with nearly regular structure including no appreciable amount of structural defect such as trapped entanglement. This result i…
Thin functional barrier layers of aluminum oxide (Al2O3) that are used particularly in photovoltaic (PV) modules to prevent the possibility of water vapor ingress should be applied over the entire PV surface without any defects. However, for barrier layer thicknesses within the sub-micrometer range (up to 50 nm) produ…
Lophostemon suaveolens is a relatively unexplored endemic medicinal plant of Australia. Extracts of fresh leaves of L. suaveolens obtained from sequential extraction with n-hexane and dichloromethane exhibited antibacterial activity in the disc diffusion and MTT microdilution assays against Streptococcus pyogenes and…
We present a detailed theoretical study on the optoelectronic properties of topological insulator thin film (TITFs). The k·p approach is employed to calculate the energy spectra and wave functions for both the bulk and surface states in the TITF. With these obtained results, the optical conductivities induced by diffe…
The size-related shape factor λ is established in this work and further introduced in the unified model for the melting piont T m ( D, λ) of quantum dots, respectively, with tetrahedral, decahedral, octahedral, cuboctahedral, and icosahedral atomic structures, where D means the diameter of quantum dots. For these quan…
In this numerical study we investigate the influence and interplay of disorder, spin–orbit coupling and magnetic field on the edge-transport in HgTe/CdTe quantum wells in the framework of coherent elastic scattering. We show that the edge states remain unaffected by the combined effect of moderate disorder and a weak…
Pressure effects on the lattice dynamics and the chemical bonding of the three-dimensional topological insulator, Sb2Te3, have been studied from a first-principles perspective in its rhombohedral phase. Where it is possible to compare, theory agrees with most of the measured phonon dispersions. We find that the inclus…
Studies have been carried out to explore the friction and wear behaviors of NiAl matrix self-lubricating composites containing graphene nanoplatelets (NG) against an Si3N4 ball from 100 to 600°C with a normal load of 10 N and a constant speed of 0.2 m/s. The results show that NG exhibits excellent tribological perform…
NDRG3 binds to lactate produced in hypoxic cells and stimulates proliferation and angiogenesis.
Abstract Three new organic dyes were synthesized and characterized for applications in dye‐sensitized solar cells (DSSCs). In these dyes, diarylmethylene‐bridged triphenylamine is the donor, and different acceptors and vinylthiophene are designed to get TBA‐1, TBA‐2 and TBA‐3. Their photophysical, electrochemical and…
The subject of research includes the structure and phase transformations during a multistage crystallization of amorphous alloys with composition of Ni71.5Cr6.8Fe2.7B11.9Si7.1 and Ni63.4Cr7.4Fe4.3Мn0.8B15.6Si8.5 alloys (AWS BNi-2, according to American Welding Society). Amorphous alloys were obtained in the form of ta…
We have studied the electronic properties and the charge carrier mobility of the organic semiconductor tris(1-oxo-1H-phenalen-9-olate)aluminium(III) (Al(Op)3) both experimentally and theoretically. We experimentally estimated the HOMO and LUMO energy levels to be -5.93 and -3.26 eV, respectively, which were close to t…
Telah dilakukan penelitian tentang pengaruh kombinasi magnesium stearat dan talkum sebagai lubrikan terhadap profil disolusi tablet Ibuprofen. Dari ketiga formula dibuat tablet Ibuprofen dengan metoda granulasi basah. Evaluasi tablet meliputi keseragaman ukuran, keseragaman bobot, kekerasan tablet, waktu hancur, kerap…
Bloch surface waves (BSW) propagating at the boundary of truncated photonic crystals (1D-PC) have emerged as an attractive approach for label-free sensing in plasmon-like sensor configurations. Due to the very low losses in such dielectric thin film stacks, BSW feature very low angular resonance widths compared to the…