Materials Literature
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Features of a topological phase, and edge states in particular, may be obscured by overlapping in energy with a trivial conduction band. The topological nature of such a conductor, however, is revealed in its transport properties, especially in the presence of disorder. In this work, we explore the conductance behavio…
Equilibria data for the Na +, NH 4 + ∥SO 4 2–, HCO 3 –, Cl – –H 2 O quinary system at 10 °C, 30 °C and 40 °C were measured, and the phase diagrams at those temperatures were constructed. Furthermore, the crystallization zones in the phase diagrams are discussed. The results show that the separation of Na + and SO 4 2–…
The electronic structure of thin Ca/Sr alloy films epitaxially grown on the topological insulator Bi${}_{2}$Se${}_{3}$ is investigated by first-principles calculations. Despite a negligible spin-orbit coupling in Ca/Sr alloys and strict spin degeneracy in freestanding Ca/Sr films, the topological surface states on the…
The determination of peroxidase activities is the basis for enzyme-labeled bioaffinity assays, peroxidase-mimicking DNAzymes- and nanoparticles-based assays, and characterization of the catalytic functions of peroxidase mimetics. Here, a facile, sensitive, and cost-effective solvent polymeric membrane-based peroxidase…
ABSTRACT This paper presents the measurement of the I–V curve of a 500‐kW PV generator by means of an own‐made capacitive load. It is shown that I–V curve analysis can also be applied to big PV generators and that when measuring the operation conditions with reference modules and taking some precautions (especially re…
Interactions of domain walls are analyzed with relevance to formation of stationary bubbles (bound state of two domain walls) and bound states of many domains in one-dimensional systems. We investigate the domain structures in ferromagnets which are described with the LandauLifshitz equation as well as the domains in…
TiO2 nanoparticles (NPs) with a size of 240 nm (T240), used as a light-scattering layer, were applied on 25-nm-sized TiO2 NPs (T25) that were used as a dye-absorbing layer in the photoelectrodes of dye-sensitized solar cells (DSSCs). In addition, the incident light was concentrated via a condenser lens, and the effect…
The zinc selenide and copper selenide thin lms were deposited by chemical deposition technique on glass substrates. For both lms, sodium selenosulphate was used as a selenide ion source in an alkaline solution. The X-ray diraction patterns show that the ZnSe has a cubic structure and Cu3Se2 lm has a tetragonal structu…
Abstract Specific solvatochromic D‐π‐A‐type pyridinium dyes were designed and developed as photosensitizers for dye‐sensitized solar cells (DSSCs). The dyes have N‐sulfobutylpyridinium or N‐(carboxybutyl)pyridinium bromide as an electron‐withdrawing anchoring group. The two dyes show specific solvatochromism, leading…
We present a liquid refractive index sensor based on a photonic crystal waveguide slab structure. Sensing mechanism employed in this study is based on the shift in cut-o wavelength as the lattice holes are selectively inltrated. Three-dimensional plane-wave expansion and nite-dierence time-domain methods are used to d…
(±)-Bis-tetralone (BisT) crystallizes as a stable conglomerate that can be resolved by preferential crystallization. This preferential crystallization was performed by autoseeded polythermic programmed preferential crystallization (AS3PC) and autoseeded preferential crystallization induced by solvent evaporation (ASPr…
The effect of flexibility on liquid-vapor and interfacial properties of tangent linear vibrating square well chains is studied. Surface tension, orthobaric densities, vapor pressures, and interfacial thicknesses are reported and analyzed using corresponding states principles. Discontinuous molecular dynamics simulatio…
A novel process was developed for oxidative desulfurization (ODS) in the absence of a phase transfer catalyst (PTC) using only Keggin heteropolyacids and their aluminum salts as catalysts. Reactions were performed in biphasic mixtures of isooctane/acetonitrile, with dibenzothiophene (DBT) as a model sulfur compound an…
Macroscopically highly oriented polythiophene derivative films are synthesized by electrochemical polymerization in a smectic liquid crystal reaction medium. Control of orientation direction of conjugated main chains is performed by use of magnetic field which is applied parallel, obliquely, and perpendicularly to the…
The current study proposes a composite having a Au cluster embedded within polyindole flakes (Au@Pin) as a promising electrocatalyst in formic acid oxidation. The present work provides a detailed study of the Au@Pin composite and its catalytic properties compared to those of a Au commercial electrode for oxidation of…
Integral equation approaches, based on the Ornstein-Zernike equation, provide a fast way to calculate phase diagrams and thermodynamic properties of systems as opposed to time-consuming and computationally expensive computer simulations. However, when employing integral equations it is necessary to introduce simplific…
Einzel-Turnover-Flash-Experimente ergaben, dass das Flavoenzym (6–4)-Photolyase einen stufenweisen Zweiphotonenmechanismus für die Reparatur der UV-induzierten T(6–4)T-Läsion in DNA nutzt (siehe Bild). Das bei der ersten Photoreaktion gebildete Intermediat (X) ist wahrscheinlich das oxetanverbrückte Dimer T(ox)T. Das…
Die Geschwindigkeitskonstanten für den Energietransfer zwischen benachbarten großen elektronischen Systemen mit linearer oder rechtwinkliger Geometrie und Abständen von 36 bis 16 Å können durch den Coulomb-Mechanismus beschrieben werden. Wird die ideale Dipolnäherung durch Verwendung eines ausgedehnten Dipols oder von…
ABSTRACT The analytical potential of radiofrequency pulsed glow discharge optical emission spectrometry (rf‐PGD‐OES) is investigated for quantitative depth profiling analysis of thin‐film solar cells (TFSC) based on hydrogenated amorphous silicon (a‐Si:H). This method does not require sampling at ultra‐high‐vacuum con…
To explore the role of DR-nm23 in the regulation of colorectal cancer invasion and metastasis. Immunohistochemistry assay and in-situ nucleic acid hybridization were carried out to analyze the protein and mRNA expression of DR-nm23 in patient samples. The molecular cloning technique was applied to construct the recomb…