Materials Literature
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Abstract An air‐stable, low‐toxicity, single‐molecular source for ZnS is demonstrated to be an appropriate reagent to synthesize highly luminescent ZnS‐capped CdSe with a narrow size distribution. A photoluminescence quantum yield of above 50 % and a photoluminescence peak full width at half maximum of around 32 nm co…
OBJECTIVE: A major shortcoming in contemporary congenital heart surgery is the lack of viable replacement materials with the capacity of growth and regeneration. Here we focused on living autologous patches engineered from human umbilical cord derived fibroblasts and endothelial progenitor cells (EPCs) as a ready-to-u…
Summary In soil carbon dynamics, the role of physicochemical interactions between organic matter and minerals is not well understood nor quantified. This paper examines the interactions between soil organic matter and poorly crystalline aluminosilicates in a volcanic ash soil on La Réunion in the southern tropics. The…
Cavitation bubble temperatures have been measured using a methyl radical recombination method and compared with the changes in the sonoluminescence intensity in aqueous ethanol solutions over a range of concentrations. Whereas the sonoluminescence intensity was decreased by more than 90% at low ethanol concentrations…
Abstract Alginate and gelatin blend fibers were prepared by spinning their solution through a viscose‐type spinneret into a coagulating bath containing aqueous CaCl 2 and ethanol. The structure and properties of the blend fibers were studied with the aid of infrared spectra, scanning electron micrography, X‐ray diffra…
We study nonlinear transmission of an asymmetric multilayer structure created by alternating slabs of two materials with positive and negative refractive indices. We demonstrate that such a structure exhibits passive spatially nonreciprocal transmission of electromagnetic waves, the analog of the electronic diode. We…
Four diamine adducts of bis(hexafluoroacetylacetonato)zinc [Zn(hfa)(2).(diamine)] can be synthesized in a single-step reaction. Single crystal X-ray diffraction studies reveal monomeric, six-coordinate structures. The thermal stabilities and vapor phase transport properties of these new complexes are considerably grea…
Journal Article Knowledge laundering: testimony and sensitive invariantism Get access John MacFarlane John MacFarlane University of California, BerkeleyBerkeley, CA 94720-2390, USAjgm@berkeley.edu Search for other works by this author on: Oxford Academic Google Scholar Analysis, Volume 65, Issue 2, April 2005, Pages 1…
To improve the drying method in the manufacture of woodwind reeds, green canes (Arundo donax L.) were dried under various humidity-temperature conditions and the intensity of cell collapse was evaluated from the swelling due to steaming involving the recovery of collapse. At 30 C, the intensity of collapse was increas…
To investigate the affinity of acetylated wood for organic liquids, Yezo spruce wood specimens were acetylated with acetic anhydride, and their swelling in various liquids were compared to those of untreated specimens. The acetylated wood was rapidly and remarkably swollen in aprotic organic liquids such as benzene an…
The tensile and impact behavior of the oil palm fiber-glass fiber hybrid bilayer laminate composites are studied. The fiber mats are impregnated with epoxy resin and cured at 100°C for 1 h followed by post curing at 105°C. The hybridization of the oil palm fibers with glass fibers increases the tensile strength, the Y…
Bragg scattering of polaritons by a coherent acoustic wave is mediated and strongly enhanced by the relevant exciton states resonant with the acoustic and optic fields simultaneously. In this case, in sharp contrast with conventional acousto-optics, the resonantly enhanced Bragg spectra reveal the multiple orders of d…
A universal method of extraction of the complex dielectric function $ε(ω)=ε_{1}(ω)+iε_{2}(ω)$ from experimentally accessible optical quantities is developed. The central idea is that $ε_{2}(ω)$ is parameterized independently at each node of a properly chosen anchor frequency mesh, while $ε_{1}(ω)$ is dynamically coupl…
We investigate the electronic properties of the (110) cross-sectional surface of Si-doped GaAs using first-principles techniques. We focus on doping configurations with an equal concentration of Si impurities in cationic and anionic sites, such as occurring in a self-compensating doping regime. In particular we study…
In this communication, we report a successful synthesis of quasi-monodisperse In2O3 nanocrystals with high crystallinity in a high-temperature organic solution. The average size of nanocrystals can be tuned using a dynamic injection technique. TEM and XRD investigations indicate that each nanocrystal is a single cryst…
We computed by a Monte Carlo method the thermal relaxation of a polycrystalline thin film deposited on a Penrose lattice. The thin film was modelled by a 2 dimensional array of elementary domains, which have each a given height. During the Monte Carlo process, the height of each of these elementary domains is allowed…
A new family of functional hybrid nanocomposites based on the intercalation of naturally occurring anionic biopolymers including alginic acid, pectin, κ-carrageenan, ι-carrageenan, and xanthan gum in [Zn 2 Al(OH) 6 ]Cl· n H 2 O layered double hydroxide (LDH), have been synthesized. The “coprecipitation” or “co-organiz…
The expected excitation power dependencies for any upconversion emission band of an acceptor ion is investigated theoretically when the excitation takes place on a sensitizer ion and subsequent energy transfer upconversion from the sensitizer to the acceptor ion is exclusively responsible for the excitation of the acc…
Quantum-sized ZnS nanocrystals with quasi-spherical and rod shapes were synthesized by the aging reaction mixtures containing diethylzinc, sulfur, and amine. Uniform-sized ZnS nanorods with the average dimension of 5 nm x 21 nm, along with a small fraction of 5 nm-sized quasi-spherical nanocrystals, were synthesized b…
The perpendicular exchange bias field, ${H}_{\mathrm{EB}}$, of the magnetoelectric heterostructure ${\mathrm{Cr}}_{2}{\mathrm{O}}_{3}(111)/(\mathrm{Co}/\mathrm{Pt}{)}_{3}$ changes sign after field cooling to below the N\'eel temperature of ${\mathrm{Cr}}_{2}{\mathrm{O}}_{3}$ in either parallel or antiparallel axial ma…