Materials Literature
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The corrosion resistance of AISI 304 stainless steel (AISI 304 SS) and manganese stainless steel (low-nickel SS) brackets in artificial saliva was investigated. The cytotoxic effects of their corrosion products on L929 cell culture were compared by two assays, crystal violet, to evaluate cell viability, and MTT (3-[4,…
The solvent-promoted aggregation of amphiphilic porphyrin derivatives 1H 2 and 2H 2, possessing a chiral cationic or anionic functionality, respectively, occurs with the formation of chiral supramolecular structures. If the aggregation of 1H 2 ( P *( + ) in the artwork) is carried out in the presence of preformed aggr…
Recent attention has focused on management of soil acidity in no‐till (NT) soils due to the limited movement of surface‐applied lime in these systems. Interactions of exchangeable Al and organic matter have been recognized for many years, but limited data exist investigating how these interactions should affect manage…
Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation Bettina Wolf, Sylvie Lam, Mark Kirkland, William J. Frith; Shear thickening of an emulsion stabil…
Tubular ZnO nanostructures have been synthesized by hydrothermal self-assembly of zinc ions at the interface of organic molecules and solution. The morphologies and structures of the products were investigated by XRD, SEM, and TEM. Surfactants, cationic cetyltrimethylammonium bromide (CTAB), and the neutral triblock c…
New amphoteric, amino acid bifunctional mesoporous silicas with highly ordered mesopores were synthesized via the cooperative self-assembly of surfactants, co-structure-directing agents (CSDA), and a silica source. Uniform distributions of acid and base organic groups on the mesopore surfaces were formed by interactio…
Piezoelectric and ferrimagnetic AFeO3 (A=Ga,Al) samples have been prepared by various annealing conditions and then their hyperfine structures have been investigated by x-ray diffraction and Mössbauer spectroscopy. From the analysis of the x-ray diffraction patterns by Rietveld refinement method, the crystal structure…
We present absorption and emission spectra of 5,6-dihydroxyindole-2-carboxylic acid (DHICA), a key melanin monomer, which violate mirror symmetry, and propose that this violation is due to convergent excited-state intramolecular proton-transfer photocycles. Dual features in the absorption spectra arise from excitation…
A heterogeneous catalyst containing MoO42- exchanged on layered double hydroxides (Mo-LDHs) is used to produce 1O2 from H2O2, and with this dark 1O2, unsaturated hydrocarbons are oxidized in allylic peroxides. The oxidation kinetics are studied in detail and are compared with the kinetics of oxidation by 1O2, formed f…
Intrinsically self-stabilized nanoparticles of a copolymer from 4-sulfonic diphenylamine (SD) and pyrrole (PY) were facilely synthesized in HCl solution at 10 degrees C by a chemically oxidative polymerization. The critical reaction parameters such as SD/PY ratio, polymerization time, and oxidant species were studied…
Abstract Partially cyclized deproteinized natural rubber (DPNR) in latex form was successfully prepared by using a combination of sulfuric acid (H 2 SO 4 ) and benzotrichloride (PhCCl 3 ) in the presence of Terric 320 as a non-ionic surfactant. The main parameters of the cyclization process such as various reaction ti…
We demonstrate that the majority pf plasmonic nanolayered composites, despite being subwanelength, are not described by effective medium theory and develop an adequate description of electromagnetism in these systems.
The article gives an account of measurements of the thermal conductivity of liquid UO2. The sample was heated up to above the melting point by a laser pulse of a controlled shape, and the produced thermogram of temperature history was measured by a fast and accurate pyrometer with a time resolution of 10 μs. The exper…
A series of meta kaolin (MK, clay) filler incorporated chain extended castable polyurethane (PU) [100/0, 90/10, 80/20, and 70/30 PU/MK], based on castor oil and 2,4-toluene diisocyanate (TDI) with tartaric acid as chain extender, were synthesized. The effect of meta kaolin loading on the physico-mechanical properties…
A novel paradigm is proposed to potentially use thin single-wall carbon nanotube (SWNT)signalinterconnects and large-diameter multi-wall carbon nanotube (MWNT)powerinterconnects in the second interconnect level. Using physical circuit models for SWNTs and MWNTs, it is demonstrated that by the end of the ITRS the propo…
The electronic and magnetic structures of Cr2Te3 have been studied theoretically using the linearized muffin-tin orbitals band method. Experimental photoemission spectra and magnetic moments can be described better when the on-site Coulomb correlation U of Cr 3d electrons is considered using the local spin-density app…
Thermally processed PU foams are examined as a function of processing temperatures (25, 45, 65, and 85 ° C) at the side, middle, and center of a simple cylindrical mold. The PU foams show both chemical and morphological differences as a function of the processing temperature and radial position within the mold. Therma…
Phase diagrams were constructed and comprehensive thermodynamic analysis was performed for hydroxypropyl cellulose-water and hydroxypropyl cellulose-ethanol systems with the use of the static sorption, calorimetry, cloud-point, polarization microscopy, and X-ray diffraction analysis techniques and the measurement of t…
The electrical properties of ionic smectic liquid crystal (ISLCs), specifically, (i) oriented and non‐oriented samples of lyotropic ISLC potassium caproate and (ii) oriented samples of thermotropic ISLC cobalt decanoate, are investigated in detail. The electrical conductivity of lyotropic smectic potassium caproate is…
In order to investigate the influence of hydrogen embrittlement on fuel failure under reactivity-initiated accident (RIA) conditions, pulse irradiation experiments were performed with unirradiated fuel rods at the Nuclear Safety Research Reactor (NSRR). Fresh cladding was pre-hydrided so that the other factors of clad…