Materials Literature
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Abstract Static Mohr–Coulomb Failure Criterion for rocks has been used extensively in various rock engineering applications. In this model, the compressive strength, tensile strength, and shear strength are related. To investigate the applicability of the Mohr–Coulomb model to dynamic failures, we studied the correlat…
Abstract We present methods for the geometric characterisation and stochastic modelling of open foams based on tomographic 3D image data. In the first step, geometric characteristics of the foam microstructure are estimated from the image. Using these characteristics, a random tessellation model is fitted to the cell…
On the basis of spectrophotometric studies, it was demonstrated that complexation of hydrobromides of seven alkylated 3,3′-bis(dipyrrolylmethenes) (H 2 L · 2HBr) with zinc(II) acetate dihydrate in DMF (298.15 K) includes successive steps of formation of binuclear helicates of two types: [Zn 2 (AcO) 2 L] (heteroleptic…
We obtained novel peptides that selectively bind to self-assembling peptide nanomaterials from a random peptide library displayed on phages. Affinity-dependent peptide screening gave phage clones displaying peptides with selective affinities against two kinds of highly networked nanofibers constructed of β-sheet pepti…
We present a novel laser microfabrication method to generate structures on the basis of a new class of functional photosensitive composites. In particular, the focus lies on the development of conductive composites by incorporating SWNTs into the matrix of polymers thus forming highly conductive nanocomposites. Conduc…
This study reports on the successful use of magnetic albumin nanosphere (MAN), consisting of maghemite nanoparticles hosted by albumin-based nanosphere, to target different sites within the central nervous system (CNS). Ultrastructural analysis by transmission electron microscopy (TEM) of the material collected from t…
The advent of nanotechnology has introduced a variety of novel exciting possibilities into the medical and clinical field. Nanoparticles, ultra-small object sized between 100 and 1 nm, are promising diagnostic tools for various diseases among other devices, thanks to the possibility of their functionalization allowing…
We present a 3-D semiclassical Monte Carlo simulator for modeling transport in graphene metal-oxide-semiconductor field-effect transistors (MOSFETs). We have calibrated our material simulations by matching simulation results to experimental bulk velocity-field curves. We have included a full range of phonon-scattering…
A versatile apparatus to measure the cross-plane Seebeck coefficient and the resistivity of bulk samples shaped as disks or thin plates, over a temperature range of 300 K-620 K with possible extension to higher temperatures, is presented. It is constructed from readily available equipment and instrumentation with part…
Quasi-free-standing bilayer graphene was grown by hydrogen intercalation of epitaxial monolayer graphene on SiC(0001). A larger size of stacking domains compared to that of epitaxial bilayer graphene grown on SiC(0001) was observed in a low-energy electron microscopy analysis of its morphology. By evaluating its elect…
A comprehensive comparative study of SiO 2 and Al 2 O 3 oxide layers with Si nanocrystals formed by Si + ion implantation and high-temperature annealing has been performed. Information on morphology, phase composition, structure, and luminescent properties of ensembles of ion-synthesized silicon nanocrystals has been…
PURPOSE: An entirely new subclass of casting alloy composition whereby palladium (∼approximately 25 wt%) is added to traditional base metal alloys such as CoCr and NiCr was recently introduced to the market. The purpose of this study was to evaluate the elemental release of new CoPdCr and NiPdCr alloys and compare the…
A structure aimed at modeling a polymeric nanocomposite loaded with carbon nanotubes (CNTs) is simulated by considering, in a three-dimensional space, a random distribution of impenetrable conducting cylinders inside an insulating cubic matrix. The variation of the electrical conductivity of the structure for differen…
The inhibiting effect of 2-thiophenecarboxylic acid methyl ester, TME on iron corrosion in 1.0 M HCl solutions were evaluated using several electrochemical measurements includes potentiodynamic polarization, electrochemical impedance spectroscopy and electrochemical frequency modulation techniques. Adsorption mechanis…
In this study, an effort has been made to synthesize nano-scale barium titanate powder by sol-gel and hydrothermal methods. Characterization of the synthesized Barium Titanate is conducted by using X-ray diffraction for crystallite size, Transmission Electron Microscopy for particle size and scanning electron microsco…
Boron carbide B4C powders were subject to reactive spark plasma sintering (also known as field assisted sintering, pulsed current sintering or plasma assisted sintering) under nitrogen atmosphere. For an optimum hexagonal BN (h-BN) content estimated from X-ray diffraction measurements at approximately 0.4 wt%, the as-…
Nanoparticles of GaFeO 3 (GFO) and Ni 0.4 Zn 0.4 Cu 0.2 Fe 2 O 4 (NZCF) and their nanocomposite [(GaFeO 3 ) 0.50 (Ni 0.4 Zn 0.4 Cu 0.2 Fe 2 O 4 ) 0.50, GFONZCF] were prepared by chemical route. Nanoparticles of GFO were synthesized by sol–gel route, and those of NZCF were prepared by chemical coprecipitation method. T…
Abstract For high performance, safety-critical applications, such as aerospace components, in-depth understanding of the material's response to complex loading conditions is essential. Moreover, it is vital to know how the material behaviour may be modified as a consequence of fatigue loading and how its eventual fail…
This research compares the difference in determining the austenite amount in SKD 11 tool steel using the micrographic method as opposed to the X-ray diffraction method. Calculating the amount of retained austenite in tool steel using X-ray diffraction analysis requires first taking off the primary carbide content. By…
OBJECTIVES: To find the efficacy of serial extracts of Anisomeles malabarica in inhibiting proliferation of and inducing apoptosis in human cervical cancer cells, SiHa and ME 180, that are HPV 16-positive. MATERIALS AND METHODS: The whole plant was extracted in n-hexane, chloroform, ethyl acetate, n-butanol, methanol,…