Materials Literature
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Abstract The equivalent circuit constants of permanent magnet synchronous motors are needed in the calculation of operation characteristics, construction of a control system, etc. These constants can be computed from the data on structural form and materials. However, measurements are necessary to obtain highly precis…
Recognition by strapped system: Cryptand-type calix[4]pyrrole are shown to exhibit a highly enhanced affinity towards anionic guests as compared to other reported calix[4]pyrroles (see figure). The results obtained provide some insights as to how calix[4]pyrrole-based anion receptors may be designed to achieve higher…
The creep strength of martensitic 9% chromium steels is strongly coupled with the formation and interaction of different precipitate populations like MX (Nb,V)(C,N), M23C6, laves phase and modified Z-phase. Changes in microstructure can be correlated to a change in creep strength. Within this work, a boron-nitrogen ba…
Abstract Amyloid fibrils are considered to play causal roles in the pathogenesis of amyloid‐related degenerative diseases such as Alzheimer's disease, type II diabetes mellitus, the transmissible spongiform encephalopathies, and prion disease. The mechanism of fibril formation is still hotly debated and remains an imp…
We previously found that photoirradiation of an acetone/water mixture containing olefins affords the corresponding methyl ketones highly efficiently and selectively via a water-assisted C-C coupling between the acetonyl radical and olefins (Org. Lett. 2008, 10, 3117-3120). The reaction proceeds at room temperature wit…
Grafted polymers on the surface of lipid membranes have potential applications in liposome-based drug delivery and supported membrane systems. The effect of polymer grafting on the phase behavior of bilayers made up of single-tail lipids is investigated using dissipative particle dynamics. The bilayer is maintained in…
In the present work, we have studied from a theoretical perspective the geometry and electronic properties of the series of related compounds 2,5-bis(phenylethynyl)-1,3,4-thiadiazole, 2,5-bis(phenylethynyl)-1,3,4-oxadiazole, and 2,5-bis(phenylethynyl)-1,2,4-triazole as candidates for electron-conducting polymers and c…
Barium (Ba) minerals identified in clinopyroxene rocks from the Myanmar jadeitite area include celsian, hyalophane, and hydrated barium aluminum silicate (an inferred barian zeolite). The hyalophane and hydrated barium aluminum silicate occur as interstitial phases and sometimes crosscut jadeite crystals, indicating t…
TaN is a potential candidate for metal gates. BCl3-based plasma is used to pattern metal gates because it has a high selectivity over Si substrate and capable of etching metal oxides (native oxides on metal gates and high-k dielectrics). During metal gate etch in inductively coupled plasma reactor, the authors found t…
Microbiologically influenced corrosion (MIC) is basically an electrochemical corrosion in which the extent and severity of the corrosion process is determined by organisms such as, but not limited to, bacteria. This work will discuss both electrochemical and mechanical features of MIC of three types of steels of frequ…
Single-transverse higher-order radially polarized beams with multiple rings are selectively generated from a Nd:YAG laser cavity by using a reflectivity-modified and polarization-selective photonic crystal mirror. As predicted by theoretical analysis [A. A. Tovar, J. Opt. Soc. Am. A 15, 2705 (1998)], the intensity dis…
Nanostructured Nb-doped SrTiO 3 (001) surfaces were investigated with STM, and the surface patterns for observed nanostructures were assigned. Sequential C 60 deposition onto these nanostructured templates reveals distinct growth modes, including discrete small C 60 islands on the c (4 × 2) reconstruction surface, par…
We investigate in a hybrid material the interactions existing between magnetic nanoparticles of gamma-Fe(2)O(3) and the polymer matrix constituted by core-shell poly(N-isopropylacrylamide-sodium acrylate) microgels. These interactions provoke the shifting of the microgel volume phase transition to higher temperatures…
The generation of charged nanoparticles in the gas phase has frequently been reported during the synthesis of thin films and nanostructures, such as nanowires, using chemical vapor deposition (CVD). In an effort to confirm whether charged silicon nanoparticles were also generated during the synthesis of Si nanowires b…
A combined spectroscopic and theoretical study has been performed to clarify the local electronic properties induced at the C 60 -Pt(111) interface. The C 60 molecules are regularly bound to the Pt(111) substrate via covalent bond, forming hybridized states just below the Fermi level ( E F ). Such a metallic feature i…
In vivo radiofrequency (RF) field B(1) mapping represents an essential prerequisite for parallel transmit applications. However, the large dynamic range of the transmit fields of the individual coil elements challenges the accuracy of MR-based B(1) mapping techniques. In the present work, the B(1) mapping error and it…
The absorption spectra of a series of inhibitors bound at the active site of Delta(5)-3-ketosteroid isomerase from Pseudomonas putida were found to exhibit substantial variations in the contributions of the protonated and deprotonated forms. Systematic variation of the inhibitor solution pK(a) combined with a method o…
In this work, we describe the consequences of oxygen and metal-ion deficiency for the magnetic properties of a magnetic oxide in bulk and thin-film form. The influence of the off stoichiometry on valence of the iron atoms and the local structural configuration of these atoms is investigated in correlation with the mag…
The surface plasmon-coupled emission microscope provides high sensitivity for surface imaging. However, it suffers from a distorted donut-shape point-spread function (PSF). Here we report an effective yet simple method to correct for the distortion by introducing a spiral phase plate. This modification converts the do…
The purpose of this study was to gain a better understanding of which factors contribute to the eutectic composition of drug-polyethylene glycol (PEG) blends and to compare experimental values with predictions from the semi-empirical model developed by Lacoulonche et al. Eutectic compositions of various drug-PEG 3350…