Materials Literature
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Abstract The study investigated seam efficiency, seam strength and seam elongation of three stitch densities for a premium muslin. The tensile and seam strength were tested on INSTRON. Seam efficiency was calculated in percentages and t ‐test and Analysis of Variance ( anova ) were used to test the hypotheses. Finding…
To obtain detailed structural information for spider dragline spidroin (MaSp1), we prepared three versions of the consensus peptide GGLGGQGAGAAAAAAGGAGQGGYGGLGSQGAGR labeled with 13C at six different sites. The 13C CP/MAS NMR spectra were observed after treating the peptides with different reagents known to alter silk…
We report on the integration of fully functional ferroelectric PbTiO3 nanostructures of typically less than 100nm lateral extension into a low-k dielectric hydrogen silsesquioxane film. Chemical mechanical polishing of the dielectric layer down to an overall thickness below the nanoparticles height exposes the structu…
A distinctive feature of the examined class of solids is that a part of the entropy production is due to rate-independent dissipation, as in models of plasticity, damage or martensitic transformations. The standard condition for thermodynamic stability is shown to be too restrictive for such solids and, therefore, an…
In this paper a convenient route for synthesizing Au(core)-Pd(shell) bimetallic nanoparticles in toluene has been reported as a result of co-reduction of gold(III) and palladium(II) precursors in toluene. N,N-Dimethyldodecylamine was used as a capping agent for the core-shell particles, which not only imparts stabilit…
A boron nitride (BN) nanostructure, conical BN nanorod, has been synthesized in a large quantity on Si substrates for the first time via the ball‐milling and annealing method. Nitridation of milled boron carbide (B 4 C) powders was performed in nitrogen gas at 1300°C on the surface of the substrates to form the BN nan…
The novel polyoxometalate ([(Eu2PW10O38)4(W3O8(H2O)2(OH)4)]22-), also referred to herein as Eu8P4W43, has been immobilized inside the channels of MCM-41 mesoporous molecular sieve material by means of the incipient wetness method. For proper host-guest interaction, amine groups were introduced into the system as a res…
Abstract Summary: This work is aimed at studying the morphology and the mechanical properties of blends of low density polyethylene (LDPE) and poly(ethylene terephthalate) (PET) (10, 20, and 30 wt.‐% of PET), obtained as both virgin polymers and urban plastic waste, and the effect of a terpolymer of ethylene‐butyl acr…
Electrical transport (90–300 K) and magnetic (5–375 K) properties of the La 0.67 Ca 0.33 MnO 3 + x % V 2 O 5 ( x = 0, 2, 5, 15 and 30) type magnetic–nonmagnetic composite system show appreciable grain boundary contribution. These composites, except for the one with x = 30%, show metal–insulator transitions at T = T p…
Nanostripe arrays with high density in the orders of 10−5cm−1 were naturally formed on ZnO (10-10) surfaces during laser molecular-beam-epitaxy (laser-MBE) growth. The nanostripe arrays were elongated above 5μm with a few branches along the [0001] direction. Transmittance electron microscopy showed that the nanostripe…
We theoretically and experimentally show that negative refraction can be realized at the surface of conventional uniaxial crystals by orientating the crystals with their optic axes at a certain angle ${\ensuremath{\theta}}_{0}$ to the normal of the light incoming surface. The concept of negative refraction can be exte…
As part of an ongoing effort to develop a microscale gas turbine engine for power generation and micropropulsion applications, this paper presents the design, modeling, and experimental assessment of a catalytic combustion system. Previous work has indicated that homogenous gas-phase microcombustors are severely limit…
Rapid production of single crystalline CdS nanoribbons with hexagonal wurtzite phase has been achieved by thermal evaporation of CdS powder on Si wafers. The flow rate of the carrier (Ar) gas along with the synthesis temperature plays an important role in defining the size and shape of the CdS nanoribbons. Scanning el…
Previous crystal structures of fumarase C from Escherichia coli have noted two occupied dicarboxylate-binding sites termed the active site and the B site. Here, the first known fumarase C structure is reported in which both sites are unoccupied by bound ligand. This so-called ;free' crystal form shows conservation of…
Several types of systems have been put forward during the past few decades to show that there exist isospectral systems which are metrically different. One important class consists of Laplace-Beltrami operators for pairs of flat tori in R-n with n >= 4. We propose that the spectral ambiguity can be resolved by compari…
A new fluorescent glucose assay has been created using Alexa Fluor 647-labeled concanavalin A (Con A) and a fourth-generation PAMAM Alexa Fluor 594-labeled glycodendrimer. This assay has been shown to have a large response to glucose within the biological range and to be capable of functioning within a polymer hydroge…
We report that aging in ferroelectric state results in an increase of reverse transition temperature Tf in both BaTiO3 single crystal and Pb0.84La0.16Ti0.96O3 polycrystal. This indicates that the ferroelectric phase is gradually stabilized during aging below Curie temperature. The evolution of the stabilization with a…
Studies of the structural, physical, and chemical properties of the lanthanide(III) complexes of DOTA (1,4,7,10-tetraazacyclododecane-1,4,7,10-tetraacetic acid) and related ligands are often complicated by the presence of two coordination isomers in solution. Since these coordination isomers are in exchange and cannot…
Miscibility and hydrogen-bonding interactions, as well as the morphological properties, of biodegradable polymer blends of poly(3-hydroxybutyrate) (PHB) and a 80% hydrolyzed poly(vinyl alcohol) (PVA80) were studied using Fourier transform infrared spectroscopy (FTIR) and differential scanning calorimetry (DSC). It was…
Low‐thermal‐expansion materials in a wide temperature range are expected to be used in electronic devices, optical devices, and nanoscale devices. The authors have tried to fabricate a single‐phase zero‐thermal‐expansion material. A new single‐phase ceramic material, (Al 2 x (HfMg) 1− x )(WO 4 ) 3 , could be produced…