Materials Literature
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Service experience has shown that contamination degrees of insulators may be different from one type to another depending on the shed profile and the insulation material even under the same service conditions. As a countermeasure against contamination flashover, the 3-outer-rib type insulator featuring open profile ha…
Present electrical devices have large calorific power, and improvement of heat dissipation has been a very important subject. In this paper, we developed the novel epoxy resins which increased the thermal conductivity that has been a barrier to heat dissipation. The medium of thermal conduction for insulating resins i…
Abstract The site occupancy and anisotropy distribution of Al substituted BaFe 12− x Al x O 19 (0.0 ≤ x ≤ 4.0) have been studied with Mössbauer spectroscopy, X‐ray diffraction, and vibrating sample magnetometry. The results suggest that the coercivity, magnetization, and magnetocrystalline anisotropies are closely rel…
The magnetic, the magneto-optical, and the optical properties of ${\mathrm{Ni}}_{2}\mathrm{MnIn}$ alloy films with significantly different atomic orders (from nearly single crystalline to highly disordered or almost amorphous) were investigated. The crystalline ${\mathrm{Ni}}_{2}\mathrm{MnIn}$ alloy films were ferroma…
Concentrated suspensions of model colloidal hard spheres at a wall were studied in real space by means of time-resolved fluorescence confocal scanning microscopy. Both structure and dynamics of these systems differ dramatically from their bulk analogs (i.e., far away from a wall). In particular, systems that are a gla…
We demonstrate the epitaxial growth of hard-sphere hcp and double hcp crystals using a surface pattern that directly dictates the stacking sequence. A detailed three-dimensional analysis based on real-space measurements is performed on crystal structure as a function of template-crystal mismatch, which demonstrates th…
The colloidal synthesis of CdS nanoparticles with the biostabilizers cysteine and glutathione, respectively, at pH values ranging from 4 to 10 is described. For the adjustment of their UV/Vis absorption properties and hence their band gap energies, the Statistical Design of Experiments (DoE) was used. This method allo…
The nanotube handedness is defined for the complete determination of the nanotube atomic structure by its diameter and chirality. The interband electronic optical transition matrix elements are calculated and the dipole selection rules are derived for chiral carbon nanotubes and circularly polarized light propagating…
Sodium atoms and clusters $(N<~5)$ on graphite (0001) are studied using density functional theory, pseudopotentials and periodic boundary conditions. A single Na atom is observed to bind at a hollow site 2.45 \AA{} above the surface with an adsorption energy of 0.51 eV. The small diffusion barrier of 0.06 eV indica…
This paper introduces the findings of a detailed study on space charge behavior under DC voltage and the development of HVDC cable. Conventionally, Oil-filled (OF) and Mass Impregnated (MI) cables have been applied to DC transmission. However, OF cables have a limited span length due to the need for oil feeding equipm…
Abstract Magnetic refrigeration is based on the magnetocaloric effect (MCE) – the ability of some materials to heat up when magnetized and cool down when removed from the magnetic field. The available techniques for studying the MCE are: (i) direct measurements by monitoring the change in material's temperature during…
James A. Moses, Jr; Comprehensive Trail Making Test (CTMT), Archives of Clinical Neuropsychology, Volume 19, Issue 5, 1 August 2004, Pages 703–708, https:/
The temperature dependence of the spontaneous polarization in strontium–barium–niobate single crystals with varying Sr/Ba ratio is presented. The temperature of the relaxor phase-transition is determined from the inflexion point of the curve of the ferroelectric polarization versus temperature. The influence of the Sr…
The present studies describe a new class of hydrogelators based on trimesic amides. The hydrophobic pockets during the gelation process are probed by fluorescence experiments. Single-crystal structures reveal a porous channel architecture with hydrophobic cavities. Multiple material properties such as gelling ability…
In this Brief Report we demonstrate, using density-functional tight-binding theory, that gallium sulfide (GaS) tubular nanostructures are stable and energetically viable. The GaS-based nanotubes have a semiconducting direct gap which grows towards the value of two-dimensional hexagonal GaS sheet and is in contrast to…
Abstract The ferromagnetism of ZnO‐based magnetic semiconductors has been investigated by theoretical calculation and many kinds of experiments. In the Cu‐doped ZnO system, ferromagnetic ordering by Cu magnetic moments does not exist, but Cu‐doped ZnO can have ferromagnetism due to the distortion of the ZnO‐based stru…
Abstract The use of phenyl 2‐pyridyl ketone [(ph)(2‐py)CO] and its oxime [(ph)(2‐py)CNOH] in manganese benzoate chemistry has been investigated. The reaction of an excess of (ph)(2‐py)CNOH with Mn(O 2 CPh) 2 ·2H 2 O affords the mononuclear complex [Mn II (O 2 CPh) 2 {(ph)(2‐py)CNOH} 2 ]·1.2H 2 O ( 1· 1.2H 2 O) in high…
We describe a method to embed phospholipid vesicles into polyelectrolyte multilayers built up by the alternate deposition of polyanions and polycations. Before deposition, the vesicles are rigidified by polycation adsorption onto their surface avoiding their fusion once deposited on the multilayer surface. The vesicle…
The structural and electronic properties of oxygen vacancy ${(V}_{\mathrm{O}})$ defects in cubic and antiferrodistortive (AFD) phases of bulk ${\mathrm{SrTiO}}_{3}$ are investigated using results from first principles pseudopotential calculations. By systematically increasing the supercell size from 40 to 320 atoms, w…
Molecular dynamics simulations have been used to study the driving force of ion irradiation induced interfacial mixing in metal bilayers in which the relative mass of the constituents is considerable. We find no apparent effect of chemical forces, such as heat of mixing or cohesive energy up to 8 keV ion energy, altho…