Materials Literature
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Abstract The Cu + ‐catalyzed Huisgen [3+2] cycloaddition has been used to elaborate analogues of a candidate PARACEST MRI contrast agent, which is a complex of Eu 3+ with DOTAM–Gly–Phe–OH. Analogues possessing either one L ‐tyrosine in place of an L ‐phenylalanine, or with all four phenylalanine units replaced, were t…
Bildverstärkung: Igelförmige MnO@Mn3O4-Kern-Schale-Nanopartikel können durch anisotropes Ätzen hergestellt werden und eignen sich als pH-aktivierbare T1-Kontrastmittel in der Kernspintomographie. Die aus der MnO-Phase an Stellen in den Tumorzellen mit niedrigem pH-Wert freigesetzten Manganionen erhöhen den T1-Kontrast…
It is known that the thermal effect (thermal inertia) in differential scanning calorimetry causes significant error of measuring the martensite finish temperature (Mf) in shape memory alloy, while the start temperature (Ms) is virtually unaffected. This article shows that the error can be avoided by accounting for the…
SUMMARY Accurate modeling of transformer saturation characteristics is essential for analyzing inrush currents and harmonic overvoltages. This paper outlines a straightforward method for correct estimation of the transformer's inrush current where the residual flux effect is considered. The Ι–Λ nonlinear characterist…
We numerically investigate a system of particles interacting through a repulsive pair potential of inverse-power form, modified in such a way that the strength of the repulsion is softened in a range of distances. The solid phases of the system for various levels of softness are identified by computing the zero-temper…
A double periodically loaded leaky-wave antenna (LWA) based on composite right-/left-handed transmission lines is proposed. Dispersion characteristics and the radiation efficiency are investigated with the help of a singular perturbation procedure, and the radiation efficiency is numerically estimated as a function of…
Development of organic materials with novel magnetic properties has been an important and challenging topic in organic chemistry. A useful paradigm in this direction is to have spin-containing (SC) components linked by ferromagnetic coupling (FC) units. Compared with the traditional SC components such as poly(1,3-phen…
Sequential processing of multiply functionalized mesoporous films is shown to yield materials that are compositionally and structurally heterogeneous on mesoscopic and molecular length scales, both of which must be controlled to optimize macroscopic ion-conduction properties. Cubic mesoporous silica films prepared fro…
The heat capacity of GdVO4 has been determined by adiabatic calorimetry in the range 5–345 K. The present experimental data and earlier results have been used to evaluate the thermodynamic functions of gadolinium orthovanadate (C 0 (T), S 0(T), H 0(T) − H 0(0), and Φ0(T)) as functions of temperature (5–350 K). Its Gib…
Nanoparticles of Ti(0.95)V(0.05)O(2) were found to be impregnated in the hexagonal channels of the MCM-41 host, with a distribution of some particles on the surface, thus leading to an effective variation in the particle size as a function of loading host MCM-41 matrix. These catalysts were subjected to the photocatal…
The photo-resistance and photo-voltage of the heterostructures of BiFeO 3 (BFO) films grown on Nb-doped SrTiO 3 (SNTO) substrates by laser molecular-beam epitaxy irradiated by UV light are systematically studied. The I-V measurements on the Au/BiFeO 3 /Nb-doped-SrTiO 3 heterostructures show a good rectifying property…
In this study, non-interlaced/non-Z single layer and multilayered uniaxial, biaxial and multiaxis preform structures were developed to produce E-glass/polyester composite structures. The data generated from the tensile tests of the composite structures were analyzed by using a regression model. We found that the tensi…
High-resolution x-ray scattering studies of the nonpolar thermotropic liquid crystal 4-n-pentylphenylthiol-4'-n-octyloxybenzoate (8S5) in aerosil gel nanonetworks reveal that the aerosil-induced disorder significantly alters both the nematic to smectic-A and smectic-A to smectic-C phase transitions. The limiting 8S5 s…
Cathode hysteresis in the reactive pulsed dc sputtering of a vanadium metal target was investigated to correlate the structural and electrical properties of the resultant vanadium oxide thin films within the framework of Berg’s model [Berg et al., J. Vac. Sci. Technol. A 5, 202 (1987)]. The process hysteresis during r…
Abstract Monodispersed lanthanum tartrate microspheres with flower‐like shape were synthesized by a mild solvothermal method using ethanol‐water mixed system as the solvent. Lanthanum oxide with reserved spherical shape was subsequently fabricated by a following calcination process. X‐ray diffraction analyses (XRD), X…
We have studied the effect of the structure of precursors on the formation of Mg 3 Si 2 O 5 (OH) 4 nanotubes under hydrothermal conditions. The results demonstrate that a chemical match between the components of a starting mixture has an advantageous effect on the synthesis of nanotubular magnesium hydrosilicate and t…
The objective of this paper is to evaluate the relevance of dislocation conservation within the context of dislocation-based crystal plasticity. In advanced crystal plasticity approaches, dislocations play a prominent role. Their presence, nucleation, motion, and interactions enable the explanation and description of…
The two-way diesel particulate filter (DPF)/selective catalytic reduction (SCR) emissions-reduction system has recently been extensively studied due to its potential cost savings and packing flexibility. Unlike a conventional emissions-reduction system that consists of a DPF and an SCR for reduction of both particulat…
RbVO 3 , CsVO 3 , and Rb 0.5 Cs 0.5 VO 3 have been synthesized by the Pechini process. The vanadates have an orthorhombic structure (sp. gr. Pbcm ), melt congruently in the range 650–530°C, and undergo a reversible phase transition in the range 520–340°C. We have determined the onset temperatures and end points of the…
To validate the feasibility of magnesium hydroxide (MH) used as flame retardant, thermogravimetry experiments and the thermal analysis kinetics method were used to investigate the effects of MH on combustion properties of asphalt binder. The results indicate that the combustion process of asphalt binder is multistage.…