Materials Literature
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The results of experimental studies on the behavior of fatigue damage in the course of cyclic and static tests using the acoustic-emission method are presented. When performing research works, samples with a stress concentrator that has a steel 20 cast structure were exposed to cyclic loading. The process of the fatig…
A carbonate-bridged tetranuclear CuII complex of the general formula [(Cu2L)2CO3]·2MeCN (L is triply deprotonated Schiff base condensation product of 1,3-diaminopropan-2-ol and 1-phenyl-3-methyl-4-formyl-5-mercaptopyrazole) has been obtained by the slow crystallization of dinuclear complex [(Cu2L)CCl3COO] from acetoni…
Polymorphism dependent charge transport property of 9,10-bis(( E )-2-(pyrid-2-yl)vinyl)anthracene, with the result of μ β-BP2VA > μ α-BP2VA > μ γ-BP2VA , the hole mobility of β-BP2VA reached as high as ∼1 cm 2 V −1 S −1 .
First-principle calculations based on density functional theory were used to investigate the stability and the shape of ZnF2 crystals in vacuum. We present and discuss the results of calculations of the ZnF2 bulk and surface structure, in the rutile and CaCl2 modifications. According to our bulk calculations, the ruti…
The objective of this study is to evaluate the effects of chromic chloride (CrCl3) on chick embryo fibroblast (CEF) viability. The cells were incubated with CrCl3 (0.02, 0.1, 0.5, 2.5, 12.5, and 62.5 μM), and the viability was determined using MTT assay, morphological detection and flow cytometry. The results show tha…
Nine new complexes of d metals with 4-(2-(1,5-dimethyl-3-oxo-2-phenylpyrazolidinyl)hydrazono)-3-methyl-1-phenylpyrazol-5-one (HL) were synthesized and isolated in the crystalline state. The crystal and molecular structure of the ligand was determined by X-ray diffraction. The complexation of HL in ethanol solutions wa…
Understanding the interaction between hydrogen and carbon nanotubes is crucial to enhancing the performance of hydrogen storage and nanofluidic carbon‐adsorbent systems. Accordingly, this study performs a series of molecular dynamics simulations to investigate the transport properties of hydrogen molecules confined wi…
We developed new series of organogelators suitable for industrial use through linkage of the molecular design, synthesis, rheological measurements, and elucidation of the viscosity-increasing mechanism of organic compounds. New organogelators, N,N’,N’’,N’’’-1,2,4,5-tetra alkyl/alkenyl pyromellitamides, with four chemi…
Despite the long-lasting interest in the synthesis control of nanoparticles (NPs) in both fundamental and applied nanosciences, the driving mechanisms responsible for their size and shape selectivity in an environment (solution) are not completely understood, and a clear assessment of the respective roles of equilibri…
The influence of carbon and copper on the original structure of cast Fe-Cr-Cu-C alloys, as well on the formation of the secondary structure and tribological characteristics of cast alloys under dry and boundary friction conditions has been shown.
We theoretically predict the rate of transcription (TX) in DNA brushes by introducing the concept of TX dipoles that takes into account the unidirectional motion of enzymes (RNAP) along DNA during transcription as correlated pairs of sources and sinks in the relevant diffusion equation. Our theory predicts that the TX…
Ba0.8Sr0.2Ce0.8−x−yZryInxY0.2O3−δ (x = 0.05, 0.1 y = 0, 0.1) proton-conducting oxides are prepared using a solid state reaction process. The effect of indium contents on the microstructures, chemical stability, electrical conductivity, and sintering ability of these Ba0.8Sr0.2Ce0.6Zr0.2InxY0.2−xO3−δ oxides were system…
Differential pulse voltammetric studies on DPE-I and DPE-II indicating selective response to Fe 3+ , supported by DFT studies using Gaussian software.
Cu2S is known to be a promising solar absorber material due to its suitable band gap and the abundance of its constituent elements. Cu2S is known to have complex phase structures depending on the concentration of Cu vacancies. Its instability of phases is due to favorable formation of Cu vacancies and the mobility of…
The microstructure, hydrophobicity and chemical composition of butterfly wing surfaces were investigated by a scanning electron microscope (SEM), a video-based contact angle meter, and a Fourier transform infrared spectrometer (FT-IR). Using CaCO3 particle as simulated pollutant, the self-cleaning performance of the w…
Hybrid spin-transition nanoparticles (HSTNs) have been prepared by the formation of octahedral Fe( ii ) complexes at the surface of silica nanoparticles.
A nanocarrier with a diameter less than 30 nm was prepared here by using host–guest chemistry. A defined number of functionalized guests was incorporated in the nanocarrier, which was a nice tumor imaging probe without showing the ABC phenomenon.
The intergrain interface of unconventional superconductors suppresses the order parameter and, thus, serves as a bottleneck for the supercurrent. Such a characteristic of the grain interface is a major limiting factor for the lossless-current-carrying capacity of superconducting transmission lines on the one hand, but…
Exact analytical solutions of nonlinear equations describing directional solidification of binary melts with a mushy layer are constructed. The primary interdendritic spacing in a mushy layer is analytically found on the basis of the selection theory of stable dendritic growth.
Dibenzothienyl Schiff bases, DBT-NN and DBT-NP, were derived from condensation of 4-formyldibenzothiophene with N,N-dimethylethylenediamine and 2-(diphenylphosphino)ethylamine, respectively. A photochemical reaction of [Fe(CO)5] with DBT-NN produced diiron complexes, [Fe2(μ-DBT-NN)(CO)6] (1) and [{Fe(μ-BPT-NN-κ(3)S,C,…