Materials Literature
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Hollow Ag/Pd triangular nanoplates have been successfully prepared by a galvanic displacement reaction, in which added Pd(2+) ions react with Ag triangular nanoplates as templates. By altering the sizes of the Ag nanotemplates, Ag/Pd triangular nanoplates of different sizes can be prepared. Additionally, the large all…
Single crystal and bulk powder samples of the quaternary lanthanum copper oxysulfides La5Cu6.33O4S7 and La5Cu6O4S7 have been prepared by means of high-temperature sealed-tube reactions and spark plasma sintering, respectively. In the structure of La 5Cu6.33O4S7, Cu atoms tie together the fluorite-like (2)infinity[La5O…
Single-crystal K 2 Ti 6 O 13 nanorings were prepared by molten salt synthesis. The nanoring is formed by loop-by-loop winding of a K 2 Ti 6 O 13 nanobelt by coherently matching the lattice at the edges of the nanobelt in the same plane. The driving force for such a perfect match at the edges is suggested to minimize t…
Thermosensitive and biotinylated biotin-poly (N-isopropylacrylamide-co-N-hydroxymethylacrylamide)-block-poly(methyl methacrylate) (biotin-P(NIPAAm-co-HMAAm)-b-PMMA) block copolymers were designed and synthesized. The conjugation of biotin molecule with the copolymer as well as the capability of easily functionalizing…
We have calculated the conductivities of the $3d$, $4d$, and $5d$ transition metals by using a quasiclassical Boltzmann approach which utilizes self-consistent energy bands. Electron scattering is characterized by a constant scattering strength which treats all sources of resistivity on an equal footing. This results…
Abstract A new method for analyzing electromagnetic force in the end‐winding portion of large‐capacity synchronous generators is provided and evaluated in comparison with 3D FEM electromagnetic analysis. In addition, a method for estimating end‐winding vibration during on‐load operation is suggested by measured data a…
We report the fabrication of GaAs-based quantum-dot (QD) lasers grown by metal-organic chemical vapor deposition (MOCVD) above 1.3 m. We fabricated a laser diode with ten stacked InAs-Sb:GaAs(100) QD layers, grown by antimony-surfactant-mediated growth. Ground-state lasing was obtained under continuous-wave operation…
Solvothermal reaction of 5,10,10-trimethyl-bicyclo[2.2.1]-heptano-2-phenyl imidazole (TBHPI-H) with CuBr as a catalyst gave a one-dimensional infinite chain metal organic framework (MOF) ( 1 ) with the formulation {[( cis -(2C-2C)bi-TPHPI) 2 ( trans -(2C-2C)Bi-TPHPI)](Cu 2 Br 2 )(Cu 4 Br 4 )} n . The (2C-2C)bi-TPHPI l…
High level ab initio electronic structure calculations using the coupled cluster CCSD(T) method with augmented correlation-consistent basis sets extrapolated to the complete basis set limit have been performed on the PNO, NOP, and NPO isomers and their corresponding anions and cations. Geometries for all species were…
Thermally and mechanically induced residual strain and strain tolerance of critical current in stainless steel-laminated Bi2223/Ag/Ag alloy composite superconductors, Ochiai, S, Rokkaku, H, Shin, J K, Iwamoto, S, Okuda, H, Osamura, K, Sato, M, Otto, A, Malozemoff, A
We show, that by performing a simultaneous analysis of the angular dependencies of the +/- first and the zeroth diffraction orders of mixed holographic gratings, each of the relevant parameters can be obtained: the strength of the phase grating and the amplitude grating, respectively, as well as a potential phase betw…
We propose a volume integral equation formulation for eddy-current nondestructive evaluation of ferromagnetic tubes affected by volumetric defects. We solve the system of integral equations (introduced into the model by application of Green's theorem) by the method of moments for both fictitious electric and magnetic…
Through the characterization of many samples of the filled skutterudite compound ${\text{PrOs}}_{4}{\text{Sb}}_{12}$, we found that even though the double superconducting transition in the specific heat (${T}_{c1}\ensuremath{\sim}1.89\text{ }\text{K}$ and ${T}_{c2}\ensuremath{\sim}1.72\text{ }\text{K}$) appears in sam…
Abstract A series of wood flour (WF) filled epoxy composites consisting of five samples were prepared by varying the concentration of WF in step of 10 wt%. These samples were characterized for its wear behavior in abrasive and sliding wear modes to study the influence of WF. It was observed that specific wear rate (k0…
We report the syntheses, structures, photophysical properties, and redox characteristics of the [2 + 2] pyromellitic diimide-based macrocycle with a linear pi-electronic system 2 as well as the 3,6-bis(phenylethynyl)pyromellitic diimide derivative 3. The interesting solid state structural properties of the clathrates…
In the study of the protein folding problem with ab initio methods, the protein backbone can be built on some periodic lattices. Any vertex of these lattices can be occupied by a "ball," which can represent the mass center of an amino acid in a simplified coarse-grained model of the protein. The backbone, at a coarse-…
Abstract Two novel 2D and 3D coordination polymers of 9,10‐triptycenedicarboxylic acid and zinc nitrate, which form under solvothermal reaction conditions, are described. As determined by single‐crystal X‐ray structure analysis, their frameworks are assembled from dinuclear zinc coordination units which are interlinke…
In this paper, a new class of finite-dimensional repetitive controllers for robot manipulators is proposed. The global asymptotic stability is proved for the unperturbed system. The passivity-based design of the proposed repetitive controller avoids the problem of tight stability conditions and slow convergence of the…
The role of temperature and anisotropy of the applied load in the pressure-induced transformations of alpha-cristobalite is investigated by means of first principles molecular dynamics combined with the metadynamics algorithm for the study of solid-solid phase transitions. We reproduce the transition to alpha-PbO2 as…
We have investigated the depolarization effects of light scattered by sharp tips used for apertureless near-field optical microscopy. Dielectric and metal coated tips have been investigated and depolarization factors between 5 and 30% have been measured, changing as a function of the incident light polarization and of…