Materials Literature
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In this paper, nano-SiO2 (NS), nano-Al2O3 (NA) and nano-CaCO3 (NC) were used to improve the mechanical properties of cement. Experimental results showed that the early hydration of cement was promoted by all of these three nanoparticles. When the content is 1%(NS), 2%(NA) and 1%(NC), respectively, the mechanical prope…
A lattice-matched InAlGaN/GaN heterostructure with a barrier-layer thickness of 4 nm has been grown and passivated in situ with a 63-nm SiN by metal-organic chemical vapor deposition. Enhancement-mode heterostructure field-effect transistors have been realized by a fluorine-based surface treatment after the local remo…
Abstract We present the study of the linear conductance vs. applied gate voltage for an interacting six site ring structure, which is threaded by a flux of π and coupled to a left and a right lead. This ring structure is designed to have a vanishing conductance for all gate voltages and temperatures provided interacti…
Myostatin (MSTN) gene has negative influence on the growth of muscle, which belongs to transforming growth factor-β family. Using single-strand conformation polymorphism (SSCP), single nucleotide polymorphisms (SNPs) of MSTN gene were detected in yellow catfish. Correlation analysis between MSTN polymorphisms and grow…
Considering that most of the research on vibratory stress relief (VSR) is excited by low-frequency vibration at present, high-frequency-exciting VSR on small Cr12MoV quenched specimens was studied. A high-frequency vibration table system was adopted as the exciter of the VSR. To increase the vibration level, a novel v…
We discuss different approximations for effective low-energy interactions in multiband models for weakly correlated electrons. In the study of Fermi-surface instabilities of the conduction band(s), the standard approximation consists only keeping those terms in the bare interactions that couple only to the conduction…
The microstructure and tensile properties of Al-Mn/Al-Si hybrid aluminum alloys prepared by electromagnetic duocasting were investigated. Only the Al-Mn alloy showed the typical cast microstructure of columnar and equiaxed crystals. The primary dendrites and eutectic structure were clearly observed in the Al-Si alloy.…
Abstract Galvanized steel is one of the most common materials used in the construction industry for its relatively low cost paired with an acceptable corrosion resistance. Nevertheless, the early failure of a number of structures around the world that use galvanized steel as reinforcement has raised some controversy o…
We study the light scattering properties of double layer gratings (DLGs) made from Au on SiO2 substrates. It is found that surface plasmon polaritons (SPPs) can be excited in the DLGs for a separation of up to 150 nm between the two Au grating layers and the collective reflectance spectra exhibit a strong resonant pea…
The effect of viscosity (high and low) and molecular characteristics (polar and nonpolar) of continuous matrix on the flow behavior of noncolloidal suspensions were evaluated using particles with different size and shape. The increase in solids volume fraction exerted higher influence for larger cellulose fibers and l…
$Y_2O_3$ nanomaterials have been widely used in transparent ceramics and luminescent devices. Recently, many studies have focused on controlling the size and morphology of $Y_2O_3$ in order to obtain better material performance. $Y_2O_3$ powders were prepared under a modified solvothermal condition involving precipita…
In this chapter, types of crystallographic X-ray detectors in common use, and several under development, are listed and their salient features are summarized. Detector characteristics of particular importance to crystallography include the detective quantum efficiency, spatial resolution, stopping power, dynamic range…
ABSTRACT We explore the potential utility of the II‐IV‐V semiconductor ZnGeAs 2 as the absorber material in solar cells. As‐deposited ZnGeAs 2 films prepared by pulsed laser deposition are amorphous because of the limited substrate temperature that can be used without the rapid loss of volatile Zn and As. Thermal proc…
CopZ is a copper chaperone from Bacillus subtilis. It is an important part of Cu(I) trafficking. We have calculated pK(a) values for the CXXC motif of this protein, which is responsible for the Cu(I) binding, and the Cu(I) binding constants. Polarizable and fixed-charges formalisms were used, and solvation parameters…
The PapC usher is a β-barrel outer membrane protein essential for assembly and secretion of P pili that are required for adhesion of pathogenic E. coli, which cause the development of pyelonephritis. Multiple protein subunits form the P pilus, the highly specific assembly of which is coordinated by the usher. Despite…
The rotational direction of the friction stir welding (FSW) tool plays a role as important as the weld parameters in FSW processes for magnesium alloys. The formation quality of the weld joints strongly relies on the rotational direction of the stir tool. Based on the present results the better tensile properties of t…
The crystal structure of the R5Ni2In4 intermetallic compounds was earlier reported for R = Ho, Er, Tm, and Lu (Lu5Ni2In4-type, oP22, Pbam); more recently the isostructural phases Dy5Ni2In4 and Sc5Ni2In4 have also been identified. Three inequivalent crystallographic sites are occupied by the R atoms in these compounds.…
In order to investigate the durability of an Ir based alloy tool, friction stir welding (FSW) of 304 stainless steel plates was performed under various welding conditions, and the mechanical properties of the joints were measured. Defect free joints are possible under certain conditions, and the mechanical properties…
Several recent series of investigations were conducted on corrugated board performance in the areas of: loaded container endurance in cyclic humidity, predictive models for edge compression strength (ECT), effects of lightweight facings, measurement of transverse shear rigidity, effects of adhesive level, and out-of-p…
OBJECTIVES: Paclitaxel is a potent anti-cancer drug that has exhibited clinical activity against several tumours. Unfortunately, serious side effects are associated with Taxol, the commercial formulation of paclitaxel, which contains Cremophor EL (CrEL). Currently, the main focus of developing paclitaxel formulations…