Materials Literature
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A well-ordered three-dimensional (3D) cubic Ia3d mesoporous niobium oxide with amorphous wall is prepared under controlled humidity by a sol-gel method and further converted to crystalline 3D niobium oxide with the retention of its original mesoporous system.
A polyester nonwoven textile with Ni-based alloy coating was fabricated, and the effect of electromagnetic wave shielding was evaluated. The Ni-based was coated by electroless plating on the textile. The electromagnetic wave shielding effect of the textile with Ni-B coating was about 99.98% over the induction range of…
At 2004, Osaka Gas Co., Ltd. and Kyocera Corporation launched joint development of residential SOFC CHP system. In order to fit Japanese urban market, we decided rated output of system as 700W and have reduced the size of a power generation. At rated power, ac 700W, net ac efficiency and hot water heat recovery effici…
Nonreciprocal phase-shift composite right/left handed transmission lines with small nonreciprocity in the amplitude of the transmission coefficients are proposed. The present structures are composed of a microstrip line periodically loaded with series capacitance and shunt inductance, and a ferrite rectangular rod is…
Hydrogen and 23 Na NMR were performed to 400 °C on NaMgH 3 powder produced by reactive ball-milling of NaH and MgH 2 . The H resonance shows narrowing already at 100 °C as a narrow line superimposed on the broad, rigid-lattice signal. With increasing temperature, the fraction of spins in the narrow component grows smo…
The temperature dependence of magnetic properties of a series of aluminium-substituted cobalt ferrite, with the general composition of CoAlxFe2-xO4(x = 0, 0.1, 0.2, 0.5), has been studied. It was observed that the magnetization, at an applied field of mu0H = 5 T and a temperature of 10 K, does not change significantly…
The material characteristics of textiles used in elite sports garments have been shown to exhibit a significant influence on both the sporting performance, as well as their aesthetics, particularly in those sports where aerodynamic resistance and its associated energy expenditure impact on winning times. The present s…
In our study, hybrid gold/iron oxide loaded thermoresponsive micelles were synthesized for combined hyperthermia and chemotherapy, and optical imaging. Polymeric micelles made of amphiphilic block copolymer of poly(N-isopropylacrylamide-co-acrylamide)-block-poly(epsiv-caprolactone) were conjugated with gold/iron oxide…
Solution-processible fabrication of large-area plasmonic nanostructures using colloidal gold nanoparticles has proven its advantages not only in its simplicity, low cost, high speed, and high flexibility, but also in the realization of some nanoscale optoelectronic devices that cannot be achieved by conventional metho…
Until now, most cathode materials used in high temperature ceramic solid electrolyte oxide cells (SEOC) are perovskite-type MEIC compounds, AMO3-δ, showing oxygen sub-stoichiometry. Recently, a new family of overstoichiometric oxides, formulated A2MO4+δ with A = La, Nd, Pr, Sr and M = Ni, Cu, has been investigated. Du…
Abstract Poly(amic acid) (PAA) was prepared by the reaction of 4,4'‐(hexafluoro‐isopropylidene)diphthalic anhydride (6FDA) with 2,2'‐bis[4‐(4‐aminophenoxy)phenyl] hexafluoropropane (BAPP) in N , N ‐dimethylacetamide (DMAc). Hybrid films were obtained from blend solutions of the precursor polymer and the organoclay Clo…
Iron selenide nanocrystals with hexagonal (H) and monoclinic (M) NiAs-like structure were synthesized via a one-pot thermal decomposition of ferrous chloride and Se powder in oleylamine. Magnetic measurements indicate that the Curie temperature of the synthesized hexagonal phase and monoclinic phase is 453 K and 340 K…
First-principles calculation has been carried out for the full Heusler alloy Co2FeGe within the scheme of density functional theory using plane-wave self-consistent field method. The spin polarized band structure does not show any energy gap at the Fermi level for both up and down spin electrons. Atom resolved magneti…
Wideband energy loss and permeability behavior of Mn-Zn and Ni-Zn ferrite ring cores has been investigated between 2 and 50 mT up to 140degC. The measurements have been performed by a fluxmetric method from direct current (dc) to 10 MHz and by a transmission line method from a few 105Hz to 1 GHz. While magnetic soften…
Abstract Polypropylene (PP) is one of the most useful general purpose plastics. However, the poor transparency and brittleness of PP restricts its applications in the field of medical and personal care where silicone and polyvinyl chloride (PVC) are presently used. This work concentrates on developing highly transpare…
T for two: The use of [32]heptaphyrin ligands allows the synthesis of T-shaped three-coordinate copper(II) complexes. For a relatively flexible nonfused [32]heptaphyrin ligand, a copper(II)–arene interaction supplements the coordination deficiency, whereas a highly rigid quadruply N-fused heptaphyrin ligand allows the…
This paper provides a detailed core model for the step-down transformer (SDT) of the coupling capacitor voltage transformer (CCVT) to investigate the CCVT transients and ferroresonance behavior. The core model represents hysteresis symmetric and asymmetric minor loops, remnant flux, and the eddy current effects. Based…
A recent computational study (Chaumont, A; Wipff, G. Phys. Chem. Chem. Phys. 2008, 10, 6940) showed that, in spite of their high charge and spherical shape, polyoxometalate α-PW 12 O 40 3− Keggin anions PW 3− can “attract each other” and form oligomers in water. This led us to speculate that these anions should also d…
Magnetostriction in nonoriented (NO) electrical steels is a harmful source of vibration and acoustic noise in electrical machines. It is far more anisotropic than specific power loss, which results in more complexity in prediction of the vibration and acoustic noise. An investigation of the anisotropy in magnetostrict…
We have successfully synthesized core−shell nanoparticles with a silica fluorescent core and a methacrylate shell for application in photoactive high performance coatings and paints. Silica core particles with diameters between 270 and 440 nm and low polydispersity were labeled with a perylenediimide derivate with two…