Materials Literature
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The strain recovery of three syndiotactic polypropylenes (s-PPs) differing in the percentage of [rrrr] pentad is investigated. A suitable method based on loading–unloading tests at constant displacement rate in tensile loading conditions is adopted to measure the residual and recovered strain components of the applied…
The Inside Back Cover shows the synergistic integration of highly porous micropatterns of vertically aligned graphenes and carbon nanotubes and their application for high-performance supercapacitor electrodes. This is achieved by fusing the carbon nanotubes in the basal plane of the vertical graphenes, which was synth…
Abstract The electrocaloric effect of 9/65/35 PLZT thin film fabricated by the sol-gel method, which has not been studied yet, was investigatedfor its structural, electrical properties as well as temperature change property. The relaxor ferroelectric property of 9/65/35 PLZT thinfilm was confirmed by examining its die…
본 연구의 목적은 금속 도재관과 지르코니아 도재관 보철물의 하부 구조물인 금속과 상부 도재의 결합강도 (금속군), 하부 구조물인 지르코니아와 상부 도재의 전단결합강도 (지르코니아군)를 결정함에 있어서 각각 하부 구조물인 금속과 지르코니아의 표면 처리를 다르게 하였을 때, 전단결합강도에 미치는 영향을 평가하고자 한다. 금속군에서는 금속 표면에 각각 아무 처리를 하지 않은 집단(NM), 모래분사를 실시한 집단(SM), 불투명 도재를 도포한 집단(OM), 모래분사와 함께 불투명 도재를 도포한 집단(SOM) 총 4집단으로 나누어 실시하였고, 지르코니아군에서는 아무 처리를…
Abstract Organic pigments can be distinguished from dyes because of their insolubility. We have synthesized a soluble base-reactive indigo precursor as a latent pigment, which regenerates an indigo molecule by a base-catalyzed reaction. We also report here the pigmentation of indigo molecules regenerated by the basic…
A comparative anal. of protein extd. from different regions of silk glands in the Bombyx mori L. and Philosamia ricini Hutt was performed employing single-dimensional-electrophoresis technique. Notably, a protein extd. directly from the lumen of the middle silk gland yielded two discrete protein bands with mol. mass o…
The effect of multipole resonance in the interaction between a spherical metallic nanoparticle (MNP) and an emitting dipole is studied with the Mie theory. The results show that the absorption peak of the MNP with respect to the field of the emitting dipole is blue-shifted with the decrease of the spacing between MNP…
To improve the performance of tandem organic light-emitting diodes (OLEDs), we study the novel NaCl as n-type dopant in Bphen:NaCl layer. By analyzing their relevant energy levels and carrier transporting characteristics, we discuss the mechanisms of the effective charge generation layer (CGL) of Bphen:NaCl (6 wt%)/Mo…
An interconnect in solid oxide fuel cells (SOFCs) electrically connects unit cells and separates fuel from oxidant in the adjoining cells. The interconnects can be divided broadly into two categories -ceramic and metallic interconnects. A thin and gastight ceramic layer is deposited onto a porous support, and metallic…
First-principles calculations based on density functional theory are used to investigate the adsorptions and diffusions of carbon atoms on the surface and in the subsurface of Co (200). The preferred site for the carbon atom on the surface is the hollow site, and the preferred site in the subsurface is the octahedral…
Biological materials Nature has evolved a palette of biological materials to address different structural requirements such as: hardness, toughness, stretchability, light weight. The intricate and ingenious hierarchical structure is responsible for the outstanding performance. Toughness is conferred by the presence of…
In the present work, a series of [Fe 80 Ni 20 —O/SiO 2 ] n multilayer thin films is fabricated using a reactive magnetron sputtering equipment. The thickness of SiO 2 interlayer is fixed at 3 nm, while the thickness values of Fe 80 Ni 20 —O magnetic films range from 10 nm to 30 nm. All films present obvious in-plane u…
In this paper, a highly catalytic and nanosized Ag / Co3O4composite for rhodamine B ( RhB ) degradation was fabricated by using the co-precipitation method at room temperature. The Ag / Co3O4structure and catalytic properties were characterized through scanning electron microscopy (SEM), transmission electron microsco…
We have investigated effects of an applied uniaxial strain on nuclear spin coherence in an n-(110) GaAs/AlGaAs quantum well by optically detected nuclear magnetic resonance (ODNMR).The ODNMR line widths associated with the quadrupolar splitting increase with the applied external strain because of the increase of inhom…
The lattice gas model of condensation in a heterogeneous pore system, represented by a random graph of cells, is studied using an exact analytical solution. A binary mixture of pore cells with different coordination numbers is shown to exhibit two phase transitions as a function of chemical potential in a certain temp…
In order to study the capability of pyrazinium salt derivatives to act as photo-initiators of epoxide monomers, benzyl pyrazinium hexafluoroantimonate (BPH), benzyl 3,5-dimethyl pyrazine hexafluoroantimonate (BDH) and benzyl quinoxalinium hexafluoroantimonate (BQH) were synthesized by the Menschutkin reaction of benzy…
ZnS and ZnS/TiO 2 were prepared by chemical deposition. The prepared photocatalysts were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive X-ray (EDX), and transmission electron microscopy (TEM). The generation of reactive oxygen species was detected by monitoring the oxid…
Abstract A acceptor–donor–acceptor (A–D–A) molecule based on a silole‐modified pentathiophene (SiPTA) electron‐donor unit and two diketopyrrolopyrrole (DPP) acceptor units, DPP2(SiPTA), was designed and synthesized. An unsymmetrical molecule with D–A structure, DPP‐SiPTA, was also synthesized for comparison. Both mole…
Abstract 2,6-Dideoxy-3-O-methylpyranosylillustrol (3) was stereoselectively synthesized through the oxidative construction of a cage-like DEF ring moiety and stereoselective glycosylation of a 2,6-dideoxysaccharide derivative.
Spherical NiO-YSZ particles were synthesized by ultrasonic spray pyrolysis (USP). The morphology of the synthesized parti-cles can be modified by controlling parameters such as precursor pH, carrier-gas flow-rate, and temperature of the heating zone. The synthesized spherical NiO-YSZ particles have rough surface morph…