Materials Literature
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The design of cost‐effective biopolymers‐based adsorbents is of particular interest. In our work, a cationic functional starch (CFS)/Na+‐montmorillonite (Na+‐MMT) composite was prepared by combining 5 wt% modified starch containing quaternary ammonium cationic functional groups and 0.5% w/v Na+‐MMT dispersed solution…
In this paper, we have used in-house the 3-D finite-difference time-domain method to analyze a novel design of metallic nanoparticles based on a sensing nanosystem. The proposed structure is composed of two gold-nanocylinders of finite height with varying radii separated by a nanogap. We have demonstrated that tunable…
The crossed beam pulsed laser deposition technique was successfully used to prepare Co:TiO2 thin films with different cobalt concentrations and a band gap as low as 2.0 eV. The aim of this work is to report the application of TiO2 thin films modified with different amounts of cobalt (Co:TiO2) as catalysts in the degra…
In this paper, we state the corrosion mechanism of carbon steel, copper, aluminum and other non-ferrous metal in the seawater; analyze the types and mechanism of corrosion inhibitors. By experiments, we have a good knowledge of the function of corrosion inhibitors to metal in the seawater. We also analyze the applicat…
Flexible devices have been developed from their rigid, heavy origins to become bendable, stretchable and portable. Such a paper displays, e-skin, textile electronics are emerging research areas and became a mainstream of overall industry. Thin film transistors, diodes and sensors built on plastic sheets, textile and o…
합성가스를 생산하기 위한 부분산화, 이산화탄소 리포밍, 메탄에 의한 산화 $CO_2$ 리포밍 공정들은 니켈 하이드로탈사이트( $Ni_{0.5}Ca_{2.5}Al$ ) 촉매를 이용하여 수행되었고 안정한 이중층 구조를 형성시키기 위한 금속지지체(Mg, Ca)의 영향에 대해서도 다양한 연구가 진행되었다. 지지체전구물질(Mg, Ca)에 따라 메탄 리포밍의 안정성은 활성니켈이온과 지지체금속이온 사이의 결합강도차이에 의해 영향을 받는다. Ni-Mg-Al 구성체는 가장 안정한 하이드로탈사이트 이중층 구조이지만 Ni-Ca-Al 구성체는 그렇지 않다. 이산화탄소 리포밍 장기테스트에…
The purpose of the study is to investigate the effect of additive catalyst according to the thermal aging of vanadia SCR catalysts. At a fresh condition, the $3V_2O_5-5WO_5-92TiO_2$ SCR showed the highest NOx conversion rate of about 30%, the performance of 5 kinds of SCR to which additive catalysts were added was not…
A gold nanoparticle array on glass substrates was fabricated by thermal annealing (400 °C, 60 min) in vacuum (P ∼ 1.3 Pa) of thin gold films with a thickness of 6, 12, and 25 nm obtained by DC magnetron sputtering. The structure and surface morphology were studied by electron and atomic probe microscopes. The sizes of…
In this work, photoluminescence spectra of lightly doped SiC crystals with ingrown original defects are reported. Undoped SiC single crystals with the impurity concentration of N D -N A ~(28)10 16 cm -3 , N A ~ (28)10 17 cm -3 , and N D -N A ~ (15)10 17 cm -3 , N D 110 18 cm -3 were investigated. The analysis of absor…
There were investigated luminescent coverings based on ZnO nanoparticles, which change luminescence intensity in contact with compounds that indicate decay processes of food products, for active and intelligent (smart) packaging. High luminescent transparent films were developed based on colloidal suspension of ZnO an…
The solubility of phenytoin in binary mixtures of ethanol + water at 298.2 K in the presence of three different concentrations of sodium dodecyl sulfate (sds) was reported. The Jouyban-Acree model was used for correlating the generated data and the obtained mean relative deviation was 7.3%. When all data points of phe…
The effect of forging process on microstructure and performance of V-Ti, V-Nb-Ti non-quenched and tempered microalloying steel was investigated in this study. By comparing the characteristics between V-Ti and V-Nb-Ti microalloyed non-quenched and tempered steels by the forging process,the machinsm of micro-alloy techn…
When nanomaterials enter biological fluids, they are immediately covered by biomolecules, particularly proteins, forming the so-called protein corona. The dynamic nature and complexity of the protein corona can impact upon the biological effects and distribution of nanomaterials with an organism. Therefore, the protei…
The recently developed machine hammer peening process is used at the die shop of the Mercedes-Benz plant in Sindelfingen in order to replace manual surface finish of deep drawing dies. The goal of the process is surface roughness reduction after milling to ensure the tribological properties, which are necessary for th…
A novel, well-defined, amphiphilic block copolymer was synthesized by RAFT copolymerization of 2-(dimethylamino) ethyl methacrylate (DMAEMA) and methyl methacrylate (MMA). The polymer structure was characterized by 1H NMR , GPC and TEM. It was found that the stable spherical micelles with core-shell structure are form…
Ultrasmall superparamagnetic iron oxide nanoparticles with titanium-N,N-dialkylcarbamato coating, Dolci, S, Domenici, V, Duce, C, Tiné, M R, Ierardi, V, Valbusa, U, Jaglicic, Z, Boni, A, Gemmi, M, Pampaloni, G
Multiple trench microdischarge reactor arrays based on a silicon (Si) platform were investigated as a concept to overcome production-based errors. The devices incorporated four sub-arrays of trench-like anisotropically etched cavities on a single 2 cm × 2 cm Si chip. Each sub-array consisted of an equal number of stru…
The objective of this study was to illustrate the effect of various cooling rate and precipitation hardening on microstructure and mechanical properties of 6061 aluminum alloy. Samples were solution treated at 400 o C before cooling in furnace, air, and water quench. Precipitation hardening was conducted by solution t…
We show that enantiomers are extremely sensitive to the quality of the light polarization in resonant elastic x-ray scattering experiments. In $\ensuremath{\alpha}\text{-quartz}$, the (001) reflection shows a very strong sensitivity to a small fraction of linear component included in nominally circularly polarized lig…
목적: 본 연구에서는 건성안이 일회용 써클소프트렌즈(이하 써클렌즈)의 권장착용시간을 초과하여 하루 이상 착용하였을 때 나타나는 자각적 및 타각적 변화와 렌즈 가시광선투과율의 변화에 대하여 알아보고자 하였다. 방법: 서로 다른 재질(hilafilcon B, nelfilcon A 및 etafilcon A)의 3가지 일회용 써클렌즈를 눈물량이 정상보다 적은 20대의 건성안(30안)에게 착용시키고 자각적 불편감, 착용자의 순목횟수, 각막에서의 렌즈중심안정위치 및 렌즈 가시광선투과율을 렌즈 착용직후와 착용자가 자각적 불편감의 증가로 더 이상 렌즈를 착용하지 못하였을 때에 각…