Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
정수처리 방식에 있어서 소형화의 필요성이 증대됨에 따라 복합적인 기능을 갖는 단일구조 여과재 개발이 절실히 요구되고 있다. 본 연구에서는 단일구조를 가지는 필터개발을 위하여 활성탄과 고분자 바인더로 구성된 성형체를 압출소결방식으로 제조하여, 제조된 성형체의 밀도, 공극률 및 유량을 평가하여, 최대유량을 가지는 성형체의 최적 압출온도를 결정하였다. 또한 성형체의 공극률 평가에 있어서 전체 공극률뿐만 아니라 관통형 기공의 공극률을 추가로 평가하여 유량과의 상관성을 평가하였다. 압출온도가 고분자 바인더의 Melting point인 $133^{\circ}C$ 이상인 $14…
Variety of new advanced composites and other advanced materials are now available which provide great advantages over conventional materials for thermal management and microelectronic packaging. We have looked into the thermal conductivity for Graphite filler in different resin matrix with varying mixing ratio and den…
Mg-doped LaFeO3 thin film and Mg, Cr-doped La0.5Sr0.5FeO3 thin films were prepared by the sol-gel method. The change rules of structure and dielectric properties of the films were studied by XRD, SEM, and Agilent. The dielectric properties of La0.5Sr0.5FeO3 and LaFeO3 films were improved by the substitute with Mg and…
Wear resistance is the important characteristics of cast iron materials for automobile components. Because the phenomenon of wear is a highly complicated mechanism involving many factors such as surface conditions, chemical reactions with lubricants, metals, and physics, it has not been fully explained. Therefore, it…
This paper presents the results of research on creating composites using the DEG-1 water-soluble epoxy resin cured by polyethylenepolyamine. It was shown that the obtained composites, in which quartz sand or Portland cement were used as the filler, have high damping properties, rigidity, and bending compressive streng…
A simple oxidative polymerization of pyrrole (Py) directly onto the surface of iron (Fe) microparticles was applied to increase the content of carbon in resulting material. Detection and quantification of the PPy (polypyrrole) coatings obtained were performed by means of pyrolysis gas chromatography (Py-GC). A powder…
In this paper, nanocrystalline VO2 thin film is fabricated by a kind method of two steps and its phase transition characteristics are investigated. The two-step method contains low-temperature reactive ion sputtering and post-annealing, and its process parameters determine the phase transition properties of fabricated…
Silica microspheres coated by nanoZrO2 were prepared by the sol-gel process using butoxidesolution (TBOZ) as precursor. The nanomicrospheres were formed via hydrolysis and condension reaction of metal alkoxides with the hydroxyl (-OH) of silica microspheres by form Zr-O-Si bonds. The samples were characterized by X-ra…
A new model based on least square support vector machines (LSSVM) and capable of forecasting the hardness of Cu-3Ti-1Cr alloy has been proposed. Data mining and artificial intelligence techniques were used to examine the forecasting capability of the model. In order to improve predictive accuracy and generalization ab…
A low ripple, compact, high-voltage DC power supply suitable for vacuum system applications is proposed. The design proposed in this paper applies multi-leveling of the Greinacher circuit. By multi-leveling the outputs of several stages the overall ripple and voltage drop are reduced significantly. In addition, the de…
Different doping concentration Al-doped ZnO nanofibers were synthesized by Atom Layer Deposition (ALD) using PVP fibers as template. The influence of Al doping concentration on the structure and optical properties of nanofibers was investigated. The samples were characterized by means of X-ray diffraction spectra, fie…
A photoacoustic technique is being investigated for application to intracellular drug delivery. Previous work [Chakravarty et al., Nat. Nanotechnol. 5, 607–611 (2010)] has shown that cells immersed in nanoparticle-laden fluid underwent transient permeabilization when exposed to pulsed laser light. It was hypothesized…
Three Mn(II) complexes of [MnL(Bipy)(H2O)] n (I), [Mn3(Phen)2(HL)2(L)2]n (II), and [Mn(Phen)2(HL)(OH)] (III), where L = 4,4′-(2-acetylpropane-1,3-diyl)dibenzoic acid, Bipy = 2,2′-bipyridine, and Phen = 1,10-phenanthroline, were hydrothermally synthesized and characterized by single crystal X-ray diffractions, infrared…
Vascular tissue engineering is dependent on achieving both tissue strength and contractility. Proliferative, synthetic smooth muscle cells (SMCs) are necessary for producing strong, engineered vascular tissue; however, in vivo, healthy SMCs are quiescent and contractile. In this study, we evaluated the effects of cult…
The synthesis of graphene using chemical vapor deposition (CVD) on patterned Cu thin films was studied. A series of experiments were carried out to optimize the CVD process of graphene synthesis on Cu thin films and the optimal growth conditions were obtained. Consequently, few-layer graphene which had been characteri…
It has been shown that stringent requirements on permeability and permittivity are needed for surface waves to exist on the surface of the vacuum and the medium made from negative-index materials (NIM). In this paper, we theoretically analyzed the transverse magnetic modes on the surface of a finitely thick NIM plate,…
Mixed-metal cyano-bridged compounds GunM1.5-n[Fe (CN)6]·xH2O(M=Ni, Gu) have been prepared by co-precipitation. The magnetic results show that the compound Cu0.75Ni0.75[Fe (CN)6]·xH2O is ferromagnetic, undergoes a paramagnetic to the ferromagnetic transition temperature at 21.77 K. The paramagnetic curie temperature θ,…
In this manuscript, we report the simulation of electronic structures of TiO2 doped with Ag using first-principles calculation, based on the density functional theory (DFT) The mechanism to improve the visible-light photocatalytic activity for TiO2 doped with Ag. EF was displaced into the valence band (VB), narrowing…
We have fabricated white organic light-emitting diodes (OLEDs) by co-doping of red and blue phosphorescent guest emitters into the single host layer. Tris(2-phenyl-1-quinoline) iridium(III) [Ir(phq)3]and iridium(III)bis[(4,6-di-fluorophenyl)-pyridinato-N,C2`]picolinate (FIrpic) were used as red and blue dopants, respe…
The magnetic and electrical properties of Co/Ge bilayer films are experimentally studied. It is established that at the Co/Ge interface an intermediate magnetic layer forms. This layer affects the magnetic behavior and magnetoresistive effect in the investigated structures.