Materials Literature
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Salts as linker sources allow the preparation of high-quality carboxylate-based MOFs under unprecedented sustainable conditions: room temperature and water as the sole solvent.
Hybrid sodium ion capacitor with the active materials in both electrodes derived from peanut shells bridges the critical battery–supercapacitor divide.
The Paton Welding Journal, 2014, №11. International Scientific-Technical and Production Journal «The Paton Welding Journal» «The Paton Welding Journal» has been published monthly since 2000 in English, ISSN 0957-798X. «The Paton Welding Journal» is a cover-to-cover English translation of the «Avtomaticheskaya Svarka»…
The electronic structures, Born effective charges (BECs), and full phonon dispersions of cubic, tetragonal, orthorhombic, and rhombohedral K 0.5 Na 0.5 NbO 3 are investigated by the first principles method based on density functional theory. The hybridized states of Nb 4d and O 2p states are observed in the valence ba…
Abstract The ilmenite welding electrode has advantages of low cost and excellent welding technological properties. However, the welding quality is affected adversely by its poor crack resistance. To solve this problem, 12 kinds of rare earths coating formulas were optimized by means of orthogonal test design and curve…
s : We report novel and simple structure of supercapacitors fabricated by using flexible glass fibre separators as templates. This method does not require separate electrodes, binders and high pressure/temperature to build the supercapacitor unit cells as required by the conventional technology. The supercapacitors we…
The Paton Welding Journal, 2014, №11. International Scientific-Technical and Production Journal «The Paton Welding Journal» «The Paton Welding Journal» has been published monthly since 2000 in English, ISSN 0957-798X. «The Paton Welding Journal» is a cover-to-cover English translation of the «Avtomaticheskaya Svarka»…
The electronic structures and optical properties of N-doped ZnO bulks and nanotubes are investigated using the first-principles density functional method. The calculated results show that the main optical parameters of ZnO bulks are isotropic (especially in the high frequency region), while ZnO nanotubes exhibit aniso…
A time-domain reflectometry technique has been used to measure complex dielectric permittivity ε*(ω) = εʹ(ω) − jε″(ω) of 1-propanol–dioxane, 2-propanol–dioxane, aniline–dioxane, N-methylaniline–dioxane and N,N-dimethylaniline–dioxane mixtures in the frequency range of 10 MHz to 30 GHz. The complex permittivity spectru…
Three multinuclear gadolinium( iii ) clusters were synthesized and characterized, and their potential as MRI contrast agents was evaluated at 7 T.
The temperature dependence of the photoluminescence (PL) from MnS/ZnS core—shell quantum dots is investigated in a temperature range of 8 K–300 K. The orange emission from the 4 T 1 → 6 A 1 transition of Mn 2+ ions and the blue emission related to the trapped surface state are observed in the MnS/ZnS core—shell quantu…
Carbon fiber paper (CFP), a type of flexible planer electromagnetic shielding material with thin thickness, low density, and good adhesion property and permeability, was laminated with wood veneer to produce a plywood composite with good shielding effectiveness (SE). It was found that a hot-press pressure of 1.2 MPa a…
To collect the diatom species belonging to the genus Hantzschia, bottom sediments were collected from 32 sampling sites in 23 sand-flat areas in the intertidal zone and river reaches of Nakdong River estuary, Korea. The sand sediments contained a total of 19 species of genus Hantzschia, Hantzschia amphioxys (Ehrenberg…
Abstract The surface properties of solvent‐based (SB) and water‐based (WB) coatings and their impact on fouling during convective heat transfer of CaSO4 solutions were investigated. Experiments demonstrated that the SB coatings had generally better non‐adhesive characteristics, especially at higher values of the elect…
Both the latest and earlier achieved results on gas exchange processes on metal surfaces (including stainless steel, titanium, zirconium, tungsten with deposited aluminum oxide coating) under hydrogen atom or plasma irradiation with occasional oxygen impurity are presented in the paper. Mechanisms and regularities of…
Abstract The presence of halogen compounds in the synthesis of semiconductor nanocrystals (NCs) produced by hot injection drastically influence their capping ligand sphere and/or chemical reactivity, allowing for the growth of hybrid systems, including composites combining NCs decorating carbon sp2 surfaces. As a resu…
A multi-band circular polarizer using a twisted triple split-ring resonator (TSRR) is presented and studied numerically and experimentally. At four distinct resonant frequencies, the incident linearly polarized wave can be transformed into left/right-handed circularly polarized waves. Numerical simulation results show…
In a survey of periphytic and benthic diatoms in Korea, diatoms of genus Stauroneis were found to be widely distributed over freshwaters, rivers and streams, lakes and reservoir, wetlands in lowland and mountain areas, and even subaerial terrestrial habitats. However, it is clear that Stauroneis diatoms prefer peatlan…
A simplified quasi-static computational model for self-sensing applications of magnetostrictive actuators based on terfenol-D rods is presented. Paths and angle changes in the magnetic moments rotation of Tb 0.3 Dy 0.7 Fe 2 alloy are studied as functions of compressive stress and magnetic field, and then used to deter…
Tapioca starch has been crosslinked and blended with 10% low density polyethylene (LDPE) with varying quantities of silane treated nanoclay using an epoxy functionalized LDPE as compatibilizer. The mechanical, thermal, water absorption, and biodegradability characteristics were investigated. The mechanical properties…