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Corrosion protection of steels: a brief review on conductive polymers

Abdolahi Abdolahi、Esah Hamzah、Zaharah Ibrahim 等 4 位作者2012-01-01OpenAlex

The conventional anticorrosive coatings which are based on heavy metals such as chromium, zinc and copper are toxic to the environment. There has been a need to find suitable replacement coatings to be environmentally friendly and effective to inhibit corrosion of steels. Conductive polymers have acquired more attenti…

Corrosion Behavior and InhibitionConducting polymers and applicationsAnalytical Chemistry and Sensors

Effects of Docetaxel on Proliferation and Apoptosis of Human Multiple Myeloma Cell RPMI8226

Liu B2012-01-01OpenAlex

This study was aimed to investigate the effects of docetaxel on proliferration and apoptosis of multiple myeloma cell line RPMI8226 and its mechanism.The inhibitory rate of multiple myeloma cells was detected by MTT,the morphological and ultrastructural changes of RPMI8226 cells were observed by using inverted fluores…

Multiple Myeloma Research and TreatmentsDendrimers and Hyperbranched PolymersSynthesis and bioactivity of alkaloids

Preparation, characterization and application of CuCrO2/ZnO photocatalysts for the reduction of Cr(VI)

Wahiba、Ketir、Gharib 等 8 位作者2012-01-01Acta Scientiarum Naturalium Universitatis Sunyatseni

大音阶的第五音胶化从 40 nm 直径胶体详细描述的铜铁矿 CuCrO2 在可见区域是光学地活跃的。它身体上并且 photoelectrochemically 被描绘。微观结构与 ca 的一种吝啬的雏晶尺寸是相当同质的。2 m。光差距(1.30 eV ) ,从弥漫的反射坚定,很好被适合到日光光谱。大草原上的树丛 Schottky 阴谋有 0.26 VSCE 的一个扁平的乐队潜力的 P 类型电导率是特征的。作为申请,铬酸盐的光致还原成功地在 air-equilibrated 暂停 CuCrO2/ZnO (1/1 ) 被完成。CuCrO2 被可见的光用光使敏化,在传导乐队(1.34 VSCE ) 的电子被注射到 ZnO。面对水杨酸酸,…

Copper-based nanomaterials and applications

A method for observing the three-dimensional morphologies of inclusions in steel

Yanping、Bao、Min Min 等 6 位作者2012-01-01Acta Scientiarum Naturalium Universitatis Sunyatseni

为观察包括的三维的形态学由的一个方法深深地有一种器官的答案的一件钢样品溴水,丙酮,和 HCl 填写了的 eroding (体积比率, 45:45:10 ) 被介绍。在极端低碳钢的包括的四种不同类型被 metallographic 观察和侵蚀观察比较。结果证明包括的不同类型的三维的形态学能在侵蚀以后清楚地并且简单地被观察。方法为深侵蚀做的包括的观察和分析是有用的。基于包括的真形态学控制并且搬迁包括也提供一个新方法。

Microstructure and Mechanical Properties of SteelsHydrogen embrittlement and corrosion behaviors in metalsNon-Destructive Testing Techniques

Synthesis of Polyoxometalate/TiO2Mesoporous Hybrid Materials and Their Photocatalytic Performance

Qianqian Xu、Chun Yang2012-01-01化学学报

采用蒸发诱导自组装法合成了介孔TiO2, 并将表面含有Si-OH 基团的钨磷酸盐衍生物(Bu4N)3PW11O39- [O(SiOH)2] (TBAPW11Si2)嫁接到乙醇回流脱模的介孔TiO2 上, 合成了TBAPW11Si2/TiO2 介孔杂化材料. 采用IR、XRD、 N2 吸附-脱附、TEM、ICP-AES 对样品的结构和组成进行了表征. 结果表明, TBAPW11Si2 与TiO2 之间的共价键联是通过表面Si-OH 和Ti-OH 间的缩合进行的; TiO2 表面足够的Ti-OH 基团和一定温度的焙烧是这一缩合的必要条件. 与 TiO2 载体相比, 嫁接了TBAPW11Si2 的杂化样品, 锐钛矿相的结晶度略有增加;…

Polyoxometalates: Synthesis and ApplicationsChemical Synthesis and ReactionsPigment Synthesis and Properties

Hydrogen Adsorption on Ti Decorating Benzene Grafted Tetrahydrido-silsequioxanes

Xiao Li2012-01-01Chinese Journal of Structural Chemistry

A novel type of Ti decorating benzene grafted tetrahydrido-silsequioxane struc-tures was designed and investigated using density functional theory(DFT).The hydrogen adsorption properties of this new material were investigated at the same level of theory.The results reveal that up to four hydrogen molecules(with the re…

Hydrogen Storage and MaterialsSilicone and Siloxane ChemistrySpacecraft and Cryogenic Technologies

Preparing Ca-P coating on biodegradable magnesium alloy by hydrothermal method: In vitro degradation behavior

Kai-kai、Li、Wang 等 7 位作者2012-01-01中国科学通报:英文版

镁合金是潜在地吸引人的可被细菌破坏的材料。然而,他们的快速的腐蚀率限制他们的生物医学的申请。减慢 biodegradation 的率,保护的钙磷酸盐涂层被一个热水的方法在镁合金底层上形成。扫描电子显微镜结果证明涂层与不同水晶的特征由二层组成了。松开的外部层显示出像棱柱的水晶结构,当紧缩的内部层是有 200 nm 的一种平均谷物尺寸的稠密的极其细小的常规 di-pyramid-like 结构时。内部层和外部层的作文是钙缺乏的 hydroxyapatite (Ca-def 哈) 并且 dicalcium 磷酸盐(DCPa ) 分别地。涂层与大约 15 m 的厚度粘住很好到底层。在丝等答案的沉浸显示涂层能显著地改进镁合金的降级性质。包含…

Bone Tissue Engineering MaterialsMagnesium Alloys: Properties and Applications

Exfoliation and dispersion of graphene in ethanol-water mixtures

Weiwei、Liu、Baoyu 等 7 位作者2012-01-01Acta Scientiarum Naturalium Universitatis Sunyatseni

Graphene 为它的唯一的结构和性质作为新 nano 碳吸引了许多注意。然而, unfunctionalized graphene 的生产和分散仍然是大挑战。此处,我们与低费用并且非为如此的 graphene 的准备和分散表明一个简单方法 toxicum。这条途径被 exfoliating 石墨在乙醇 / 水混合物和单层和很少层 graphenes 的形成的稳定的分散完成。在混合的乙醇 / 水的比率被发现对脱落和分散过程关键。纯水或纯乙醇里的脱落不生产 graphene。这个方法避免严厉氧化剂和表面活化剂的常规使用;因此,没有破坏, graphitic 结构很好被维持。得益于乙醇和水的使用,由真空过滤或水花方法准备透明、传导性…

Graphene research and applicationsSupercapacitor Materials and FabricationMolecular Junctions and Nanostructures

Purification and partial characterization of glyceraldehyde-3-phosphate dehydrogenase from the ciliate Tetrahymena thermophila

Nadia Nadia、Errafiy、Abdelaziz Abdelaziz 等 4 位作者2012-01-01生物化学与生物物理学报:英文版

在现在的学习,我们净化了涉及细胞的精力生产并且有重要家务功能的 glycolytic 酶 glyceraldehyde-3-phosphate 脱氢酶(GAPDH ) ,从用一个三步的过程的有睫的 Tetrahymena thermophila。酶被净化由铵硫酸盐降水的 68 褶层,由列层析(DEAE 纤维素和 Mono-S ) 的二个步骤列在后面。净化的酶是有 120 kDa 的分子的重量的 homotetramer。等电位的集中分析与 8.8 的一个等电位的点显示出一仅仅基本 GAPDH isoform 的存在。西方的污点分析对 T 用 monospecific polyclonal 抗体给相应于酶的一个单个 32-kDa 乐…

Genomics and Phylogenetic StudiesCorrosion Behavior and InhibitionMolecular Biology Techniques and Applications

Synergistic Multilayer Adsorption for Low Concentration Dyestuffs by Biomass

Keith Keith、Kim、Hùng 等 6 位作者2012-01-01Acta Scientiarum Naturalium Universitatis Sunyatseni

由于最近的年里的吸附物和他们的热新生的高费用,许多研究为从纺织品工业对待废水为更便宜的吸附物集中了于搜索。酸的染料的单个部件吸附,酸黄 117,并且基本染料,甲又蓝色到几 adsorbentsbamboo 上,浪费木头,竹子字符,浪费木头字符,竹子激活碳,木头激活碳,活跃的碳 F400 被进行。基于兰米尔分析,单层吸附能力被决定。三吸附物被选择让二进制层吸附为更好的吸附物用法检查多层的概念和潜在的应用程序。二最便宜的吸附物,竹子和木头与商业激活的碳 F400 相比,并且所有三个系统是成功的。

Surface Modification and SuperhydrophobicityRecycling and Waste Management Techniques

Biomimetic fabrication and characterization of an artificial rice leaf surface with anisotropic wetting

Jian Wang2012-01-01OpenAlex

In nature,rice leaves exhibit special anisotropic sliding capabilities.Although researchers have succeeded in fabricating artificial rice leaf structures and realizing the wettability function of the leaf surface,these methods used to date are complex and do not allow the fabrication of surfaces with large area.Herein…

Surface Modification and SuperhydrophobicityAdvanced Materials and MechanicsAdhesion, Friction, and Surface Interactions

New Generation Thermal Barrier Coatings for Ultrahigh Temperature Applications

Huibin Xu2012-01-01Hangkong cailiao xuebao

The research background,significance and current status of thermal barrier coatings(TBCs) for advanced gas turbine engines were highlighted.Research progress in new generation TBCs for ultra-high temperature applications was reviewed,which involved new ceramic topcoat materials with excellent high-temperature capabili…

Catalytic Processes in Materials ScienceHigh-Temperature Coating BehaviorsNuclear Materials and Properties

Effect of Ce3+ on membrane permeability ofEscherichia coli cell

Chen、Aimei、Shi 等 7 位作者2012-01-01Acta Scientiarum Naturalium Universitatis Sunyatseni

这研究试图描出到目标有机体 Escherichia coli 房间的稀土元素的离子 Ce3+ 的抗菌剂机制,和最重要的目的是识别它增加 E 的生物效果。coli 房间膜渗透。到 E 的 Ce3+ 的抗菌剂活动。coli 房间被测试,然后外部膜(OM ) 的渗透和内部膜(IM ) 被 N-phenyl-1-naphthylamine (NPN ) 和 o-nitrophenyl 学习 -- D-galactopyranoside (ONPG ) 方法独立。通过这些实验,我们得出结论 E。变得记载噬菌体的 coli 房间不在这个阶段比对 Ce3+ 更敏感;膜的结构被破坏, OM 和 IM 的渗透被 Ce3+ 显然增加;应该在房间内在…

Nanoparticle-Based Drug DeliveryMolecular Sensors and Ion DetectionAdvanced Nanomaterials in Catalysis

RPL1, a Gene Involved in Epigenetic Processes Regulates Phenotypic Plasticity in Rice

Cui-Cui、Zhang、Wenya 等 5 位作者2012-01-01Acta Scientiarum Naturalium Universitatis Sunyatseni

有机体能响应改变环境条件调整他们的显型。这现象被称为 phenotypic 粘性。尽管有它的无所不在的出现, phenotypic 粘性的分子的机制上有很小的学习。在这研究,我们孤立米饭(Oryza sativa L.) 变异,米饭粘性 1 (rpl1 ) ,那显示的增加的环境依赖者 phenotypic 变化。RPL1 在检验的所有纸巾被表示。蛋白质在原子核是局部性的,它在原子核的分发与 heterochromatin 重叠了。rpl1 变化在全面 histone acetylation 在重复序列和减少上在 DNA methylation 导致了增加。另外,变化影响了米饭植物的回答到象 brassinosteroid,赤霉素,…

Plant Molecular Biology ResearchPlant Gene Expression AnalysisSilk-based biomaterials and applications

Electronic Absorption Spectra of Meso-Substituted Porphyrins and Their Zinc Derivatives

Cao Zhen2012-01-01Acta Physico-Chimica Sinica

Meso-substituted porphyrin derivatives have demonstrated great potential as sensing materials for toxic gas detection.In this paper,density functional theory(DFT)and its time-dependent DFT approach(TD-DFT)were employed to investigate the ultraviolet-visible(UV-Vis)or the near-ultraviolet-visible(near-UV-Vis)absorption…

Porphyrin and Phthalocyanine ChemistryPhotodynamic Therapy Research StudiesPhotochemistry and Electron Transfer Studies

Catalytic Performance and Steady-State Kinetics of Cu-ZSM-5 for Selective Catalytic Reduction of NO with NH_3

Qiu Zhang2012-01-01Acta Physico-Chimica Sinica

A series of Cu-ZSM-5 catalysts with different Cu loadings were prepared by an incipient wetness impregnation method.These catalysts were used for studies of selective catalytic reduction(SCR)of NO by NH 3.The results showed that Cu-ZSM-5 with 5%Cu loading showed the best catalytic activity,the conversion of NO was mor…

Catalytic Processes in Materials ScienceGas Sensing Nanomaterials and SensorsIndustrial Gas Emission Control

Effect of N2O Plasma Treatment on The SiNx-based InGaZnO Thin Film Transistors

李军 Li Jun、周帆 ZHOU Fan、林华平 LIN Hua-ping 等 7 位作者2012-01-01Chinese Journal of Luminescence

Indium-gallium-zinc oxide thin film transistor(IGZO-TFT) was fabricated using N2O plasma treated SiNx film as gate insulator and room-temperature deposited IGZO film as active layer.Comparing with the conventional IGZO-TFT,the saturation mobility increased from 4.5 to 8.1 cm2·V-1·s-1,threshold voltage reduced from 11.…

Thin-Film Transistor TechnologiesSilicon and Solar Cell TechnologiesSilicon Nanostructures and Photoluminescence

Extreme pressure properties investigation of palm olein using four ball tribotester

Muhammad Khairul Anuar Mohamed、Nadirah Mohd Nasir、N. S. Khasi'ie 等 7 位作者2012-01-01OpenAlex

In this study, the numerical solution of stagnation point flow over a stretching surface, generated by Newtonian heating in which the heat transfer from the surface is proportional to the local surface temperature is considered. The transformed boundary layer equations are solved numerically using the Keller box metho…

Heat Transfer and OptimizationTextile materials and evaluationsHeat Transfer Mechanisms

Optimization of heat shield for single silicon crystal growth by using numerical simulation

Teng Teng、Zhou、Qigang 等 13 位作者2012-01-01稀有金属:英文版

In integrated circuit-grade single silicon Czochralski growth,the position and material of heat shield are main parameters affecting the heat exchange and crystal growth condition.By optimizing the above parameters,we attempted to increase the growth rate and crystal quality.Numerical simulation proved to verify the r…

Silicon and Solar Cell TechnologiesSolidification and crystal growth phenomena

Microstructure evolution and mechanical properties of Ti-B-N coatings deposited by plasma-enhanced chemical vapor deposition

J.-Y. Jung、Ho、Shin 等 11 位作者2012-01-01Acta Scientiarum Naturalium Universitatis Sunyatseni

Ternary Ti-B-N coatings were synthesized on AISI 304 and Si wafer by plasma-enhanced chemical vapor deposition (PECVD) technique using a gaseous mixture of TiCl4,BCl3,H2,N2,and Ar.By virtue of X-ray diffraction analysis,X-ray photoelectron spectroscopy,scanning electron microscope,and high-resolution transmission elec…

Metal and Thin Film MechanicsDiamond and Carbon-based Materials ResearchBoron and Carbon Nanomaterials Research