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Variability studies on strength and fibre properties of Bambusa vulgaris Schrad for panel products.

K. S. Aina、S. E. Areghan、I. M. Adeniyi 等 5 位作者2012-01-01DOAJ (DOAJ: Directory of Open Access Journals)

A variability study on strength and fibre properties of bamboo (Bambusa vulgaris) was investigated in this study. Bamboo bole length of two geographical locations (Ibadan and Ilorin) at percentage of (10, 30, 50, 70 and 90) were used to determine the fibre properties such as fibre length, fibre diameter, lumen width,…

Natural Fiber Reinforced CompositesTextile materials and evaluationsBamboo properties and applications

Plasma-enhanced chemical vapour deposition of octafluorocyclobutane onto carbonyl iron particles

Michal Sedlačík、Vladimı́r Pavlı́nek、Marián Lehocký 等 5 位作者2012-01-01Repository of TBU publications (Univerzita Tomase Bati ze Zline)

Conformal films of fluoropolymer have been made onto carbonyl iron microparticles by plasma-enhanced chemical vapour deposition of octafluorocyclobutane in this study. RF plasma reactor with a frequency of 40 kHz and rotating barrel fixed between the two discharge electrodes arrangement was used to achieve a uniform s…

Metal and Thin Film MechanicsCopper Interconnects and Reliabilitynanoparticles nucleation surface interactions

Effect of Pleurotus nebrodensis extract on melanin synthesis: A natural alternative for cosmetics

D. M. Dangre、L. P. Dafne、R. P. Bhagat 等 4 位作者2012-01-01International journal of medicinal and aromatic plants

The mushroom Pleurotus nebrodensis is an edible mushroom widely used for nutritional and medicinal pu r- poses. It was observed that the sk in of mushroom farmers is turn out to be fairer as they were regularly involved in mus h- room handling and process. In order to examine this effect and as a preliminary step to a…

melanin and skin pigmentationDyeing and Modifying Textile FibersSilk-based biomaterials and applications

Synthesis and properties of Au–Fe₃O₄ heterostructured nanoparticles

Sheng Yang、Junmin Xue2012-01-01Journal of Colloid and Interface Science

Au–Fe₃O₄ composite nanoparticles have received much research interest due to their promising biomedical applications. In this work, Au–Fe₃O₄ composites with well-defined dimer-like nanostructure were synthesized via thermal decomposition route. The surfactant 1,2-hexandicandiol has proved to be critical for the format…

Nanoparticle-Based Drug DeliveryGold and Silver Nanoparticles Synthesis and ApplicationsNanomaterials for catalytic reactions

Development of Study on Water-Soluble Porphyrins and Metalloporphyrins in DNA

Xianxia Zhang、Canyu Chen2012-01-01化学学报

近年来, 卟啉及金属卟啉与DNA的相互作用已成为研究的热点. 通过对卟啉及金属卟啉与DNA相互作用的研究将有助于更深地认识DNA本身的结构和功能, 有助于卟啉及金属卟啉在医学上的应用, 对认识很多疾病的治病机制和药物的设计也起到非常重要的作用. 本文阐述了卟啉及金属卟啉与DNA相互作用的方式和影响因素, 并将水溶性卟啉及金属卟啉分为三类: 具有吡啶基或铵基的阳离子型卟啉及金属卟啉, 具有磺酸基或羧基的阴离子型卟啉及金属卟啉, 以及非离子型的卟啉及金属卟啉. 重点论述了这三类水溶性卟啉及金属卟啉与DNA之间的相互作用, 以及这三类水溶性卟啉及金属卟啉在DNA中的应用研究进展.

DNA and Nucleic Acid ChemistryPorphyrin and Phthalocyanine ChemistryPorphyrin Metabolism and Disorders

Variation Of Electrical Characteristics Of EMI Shielding Materials Coated with Ceramic Microspheres

Nasrullah Khan2012-01-01International Journal of Scientific Engineering and Technology

This paper deals with the work done for finding suitable EMI shielding materials to avoid EMI problems in Electrical and Electronics applications. It is well known that all the electronic devices emit electromagnetic rays during their operations. In order to have a smooth functioning of these devices Electromagnetic I…

Electromagnetic wave absorption materialsElectromagnetic Compatibility and Noise SuppressionTransportation Systems and Safety

The Role of Nano-sized Fraction on Spark Plasma Sintering the Pre-Alloyed Spark-Erosion Powders

Gennady Monastyrsky、P. Ochin、A.V. Gilchuk 等 5 位作者2012-01-01Electronic Sumy State University Institutional Repository (Sumy State University)

Ti-Ni-Hf, Ni-Al and Cu-Al-Ni shape memory materials were produced by spark plasma sintering method from the micron and nano-sized particles prepared by spark-erosion method in cryogenic liquid from preliminary melted master alloys. The effects of spark plasma sintering processing parameters on the martensitic transfor…

Advanced materials and compositesMetal Alloys Wear and PropertiesMaterials Engineering and Processing

Controlled Drug Release from Silk Fibroin Films Treated with Methanol-water Mixtures

Qiaona Wei、Lin Ma、Aimin Huang 等 7 位作者2012-01-01化学学报

采用溶液浇注法制备丝素蛋白薄膜, 应用傅里叶红外光谱(FTIR)和X 射线衍射(XRD)研究了浓度不同的甲醇-水混合溶剂处理后丝素蛋白薄膜的结构变化, 并以罗丹明B 为模型药物与丝素蛋白构建药物缓释体系, 考察了丝素蛋白膜的结晶结构对药物释放动力学的影响. 结果显示, 在甲醇体积比浓度ΦMeOH=50%~90%的范围内, 丝素蛋白材料中以β-折叠为主的silk Ⅱ 结晶含量随着混合溶剂中甲醇浓度的增加而先增加后下降, 在ΦMeOH=80%附近出现最大值. 罗丹明B 从丝素蛋白膜的释放属于Fickian 扩散机理, 其扩散指数n 随着丝素蛋白膜中β-折叠含量的增加而增加, silk Ⅱ结晶是丝素蛋白材料药物释放的天然调节器.

Silk-based biomaterials and applications

Histopathological studies and oxidative stress of synthesized silver nanoparticles in Mozambique tilapia (Oreochromis mossambicus)

Rajakumar、Govindasamy、Abdul Abdul 等 4 位作者2012-01-01Acta Scientiarum Naturalium Universitatis Sunyatseni

评估设计 nano 金属的潜在的环境效果,在水的种类上决定各种各样的 nanomaterials 的不利效果是重要的。成年 tilapia (Oreochromis mossambicus ) 在 10 L 玻璃养鱼池被维持,并且在 25, 50 和 75 mg/L 暴露了到综合的银 nanoparticles (Ag-NPs ) 的一个分级的系列八天。LC50 价值是 12.6 mg/L。抗氧化剂酶的减少的活动和抗氧化剂的内容在与 Ag-NPs 对待的鱼的鳃和肝被降低,它导致了自由激进分子的重累积。组织病理学说的结果暗示平衡在之间氧化并且在鱼的抗氧化剂系统在 Ag-NPs 暴露期间被毁坏。与 nanomaterials 和他们的…

Nanoparticles: synthesis and applications

STRENGTH, PLASTICITY, INTERLAYER INTERACTIONS AND PHASE TRANSITION OF LOW-DIMENSIONAL NANOMATERIALS UNDER MULTIPLE FIELDS

Wanlin、Guo、Yufeng 等 7 位作者2012-01-01固体力学学报:英文版

原子是保持完整通过象化学契约那样的短范围相互作用和电磁的相互作用形成不同材料和设备。当分子的力学和动力学基于实验潜力能在大规模模仿材料行为时,量力学是强大的在纳米规模描述材料的短范围相互作用,但是在包括费用转移和再分配过程处理弱,例如功能的 nanomaterials ,塑料变丑,骨折和 nanomaterials 的阶段转变的机械电的联合。这些问题对需要被延长到货车 der Waals 距离和更大的空间以及时间的规模的量力学也挑战性。这里,我们使一些的这种机械行为上的简短评论和讨论成为重要功能的 nanomaterials 和 nanostructures,到探查到多尺度的物理力学的 nanomechanics 和趋势的边疆。

Carbon Nanotubes in CompositesBoron and Carbon Nanomaterials ResearchNanotechnology research and applications

Enhanced Ferroelectric and Piezoelectric Properties of Textured K_(0.45)Na_(0.55)NbO_3 Ceramics Prepared by Screen-printing Technique

LI Ya2012-01-01OpenAlex

Grain oriented K0.45Na0.55NbO3(KNN) lead-free piezoceramics with sintering aid K4CuNb8O23(KCN) were fabricated by screen-printing technique,using plate-like NaNbO3 as templates.The plate-like NaNbO3 template particles were synthesized from bismuth layer-structured Bi2.5Na3.5Nb5O18 precursors by the topochemical micro-…

Ferroelectric and Piezoelectric Materials

Influence of Minimum Quantity Lubrication Parameters on Tool Wear and Surface Roughness in Milling of Forged Steel

Yan、Lutao、Yuan 等 6 位作者2012-01-01中国机械工程学报

润滑油(MQL ) 的最小的数量技术逐渐地正在成为由于环境的安全流行的更多。而且, MQL 技术不仅通过节省润滑剂费用导致节俭的好处而且介绍更好的 machinability。然而,用机器制造上的 MQL 参数的效果仍然不是清楚的,它需要被克服。在这份报纸,润滑油的不同模式的效果,即,用冲洗,干燥的切并且使用最小的数量润滑油(MQL ) 的常规方法在伪造的钢(50CrMnMo ) 的结束 milling 的 machinability 上的技术,被调查。工具上的参数穿的 MQL 和表面粗糙的影响也被讨论。MQL 参数在关系包括嘴方向喂方向,嘴举起角度,到切的地区的从嘴尖端的距离,润滑剂流动率和空气压力。调查结果证明那种 MQL 技…

Advanced machining processes and optimizationMetallurgy and Material FormingMetal Alloys Wear and Properties

Pharmacognostic standardization of stems of Thespesia lampas(Cav.) Dalz & Gibs

Chumbhale、Upasani2012-01-01亚太热带生物医学杂志:英文版

Objective:To establish the standardization parameters for complete pharmacoguoslic evaluation of stems of Tlespesia lampas(T.lampas)(Cav.) Dalz & Gibs(Malvaceae),an important planl in the Indian system of medicine.Methods:Morphological,microscopical,physico-chemical evaluations,florescence analysis of T.lampas stems w…

Phytochemistry and Biological ActivitiesPhytochemical Studies and BioactivitiesPhytochemistry and Bioactive Compounds

Cytoreductive surgery and hyperthermic intraperitoneal chemotherapy: Where are we?

Ingmar、Knigsrainer、Stefan 等 4 位作者2012-01-01Acta Scientiarum Naturalium Universitatis Sunyatseni

腹表面恶意通常与差的预后被联系。在每日的临床的常规,尽管有,全身的化疗仍然被认为唯一的合理治疗与 intraperitoneal hyperthermic 化疗(HIPEC ) 一起的 cytoreductive 外科(CRS ) 的令人鼓舞的结果。CRS 和 HIPEC 的阿奇里斯脚跟是适当耐心的选择和阻止病人过多的病态和死亡的精确外科的技术。给这些调查结果,为高风险病人的第二个看手术的新概念在减少 perioperative 的腹群众的临床的症状或存在前允许腹传播的察觉病态。另外,个性化化疗可能进一步改进的 intraperitoneal 由欣赏单个肿瘤的结果生物学。现在,每位医生应该为腹表面恶意的治疗知道 CRS 和 HIP…

Nanoparticle-Based Drug DeliveryMyasthenia Gravis and ThymomaIntraperitoneal and Appendiceal Malignancies

Dopamine-containing gadolinium complex as magnetic resonance imaging contrast agent

Zhou、Xin -、Yang 等 19 位作者2012-01-01Acta Scientiarum Naturalium Universitatis Sunyatseni

金轧 diethylenetriamine-pentaacetic bisdopamide (Gd-DTPA-2DA ) 被多巴胺的加入与金轧氯化物综合到 diethylenetriaminepentaacetic 酸(DTPA ) 和进一步的反应。在 vitro 并且在 vivo,性质也被评估。金轧复杂 Gd-DTPA-2DA 比 Gd-DTPA 的拥有了更高的松驰有效性和更少 cytotoxicity 到 HeLa 房间。而且, Gd-DTPA-2DA 极大地提高了大脑,提供的延长 intravascular 持续时间,和大脑的生产高度对比的可视化的先生图象的对比。

Magnetism in coordination complexesLanthanide and Transition Metal ComplexesRadiopharmaceutical Chemistry and Applications

Steric Effect of Alkyl Substituted Piperidin-4-one Oximes for Corrosion Control of Mild Steel in H2SO4 Medium

senthilkumar Senthilkumar、Annamalai、Tharini 等 7 位作者2012-01-01Acta Scientiarum Naturalium Universitatis Sunyatseni

Three synthesized piperidin-4-one oximes,3-ethyl-2,6-diphenyl-piperidin-4-one oxime(A),1-methyl-3-isopropyl-2,6-diphenyl-piperidin-4-one oxime(B),and 3-isopropyl-2,6-diphenyl-piperidin-4-one oxime(C),were tested at different concentrations to determine their ability to inhibit corrosion of mild steel in 1 mol.L-1 H2SO…

Corrosion Behavior and InhibitionMulticomponent Synthesis of HeterocyclesInorganic and Organometallic Chemistry

Simultaneous Determination of Hydroquinone, Catechol and Resor- cinol Based on Graphene/Cobalt Hexacyanoferrate Modified Glassy Carbon Electrode

Kejing Yu、Sheng Wang、Lan Gan 等 4 位作者2012-01-01OpenAlex

Graphene was coated on glassy carbon electrode (GCE) and cobalt hexacyanoferrate was then electrodeposited on the modified electrode to fabricate electrochemical sensor. Scanning electron microscope was used to characterize the nano-composite film. The electrochemical behaviors of hydroquinone (HQ), catechol (CT) and…

Electrochemical sensors and biosensorsConducting polymers and applicationsAnalytical Chemistry and Sensors

EFFECTS OF DEFORMATION-INDUCED ORIENTATION ON CYCLIZATION AND OXIDATION OF POLYACRYLONITRILE FIBERS DURING STABILIZATION PROCESS

Jie Jie、Liu、Feng 等 8 位作者2012-01-01Acta Scientiarum Naturalium Universitatis Sunyatseni

polyacrylonitrile (平底锅) 在稳定上在稳定和进一步的效果以前在他们的变丑期间锁住的共聚物的取向详细被调查。当变丑比率到达约 1.07 时,结果表明平底锅链的取向介绍 69.51% 的一个浸透点,同时,环合而非氧化在稳定期间在平底锅链的取向上有更强壮的依赖。环合被便于当激活精力在浸透点前作为平底锅纤维的发展中的取向的后果显然正在减少时,环合度正在增加;然而,它在点以后在平底锅纤维的进一步的变丑期间被制止。从在浸透点准备的 PAN 纤维获得的产生的碳纤维在张力的模量在张力的力量和 249.0 GPa 拥有 4.07 GPa 的最高机械的性质。

Advanced ceramic materials synthesisFiber-reinforced polymer compositesRecycling and Waste Management Techniques

Annealing effect on optical and electronic properties of silicon rich amorphous silicon-carbide films

Shu-xin、Li -、Yunjun 等 10 位作者2012-01-01Acta Scientiarum Naturalium Universitatis Sunyatseni

一系列 Si 富有的非结晶的硅碳化物(一 -- 原文如此: H ) 薄电影在常规血浆被扔有各种各样的煤气的比率 R = 的提高的化学蒸汽免职系统[CH4 ]/[SiH4 ] 。微结构,同样扔的电影的光、电子的性质在这研究被调查。光乐队差距与在这些电影的碳内容线性地成正比,它能被改变煤气的比率在 1.82.4 eV 的一个范围控制,这被发现, R。在房间温度的黑暗和相片传导性与在与 1.96 eV 的光乐队差距为这部电影象 104 一样高到达的电影,和光敏度增加碳内容被减少。同样扔的样品随后在 900 楴敶戠慲据 ? 眠 ? 牰獥湥整 ? 桴 ? 汣獯摥昭牯 ? 硥牰獥楳湯 ? 潦 ? 灯楴慭? 牴湡浳瑩楴杮瀠睯牥 ? 的温度被退火…

Thin-Film Transistor TechnologiesSilicon Nanostructures and PhotoluminescenceMagneto-Optical Properties and Applications