Materials Literature
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The novel high-performance nanocomposites of polyaniline (PANI) and graphene oxide sheets (GOs) was synthesized via in situ polymerization in the presence of Hexadecyl trimethyl ammonium Bromide intercalated graphite oxide (CGO), basing on PANI and GOs as a matrix respectively. The result showed that ANI monomer was i…
Tubular halloysite is a hydrated polymorph of kaolinite, commonly considered as its associated mineral. Due to its unique mesoscopic (2–50 nm) tubular structure, it has attracted great interest in the field of adsorption, catalysis, and nanocarrier. The halloysites in different deposits present various morphological p…
Naturally occurring tubular halloysite is a potential drug carrier because of the significant deposit, unique mesoscopic (2-50 nm) or even macroscopic (>50 nm) lumen, and excellent biocompatibility. The drugs loaded on halloysite exhibited slow release under the diffusion limitation by the halloysite nanotube. However…
The major problems in switched reluctance motors (SRMs) are radial force and torque ripple which cause increased undesirable acoustic noise. This paper describes an approach to determine optimum magnetic circuit parameters to minimize both radial force and torque ripple for such motors. There is no publication for sim…
利用热机械模拟方法详细研究了一种挤压Mg-7．8Li-4．6Zn．0．96Ce-0．85Y-0．30Zr合金的流变行为，温度范围为250～450℃，应变速率在0．001～10S-1之间。结果表明，该合金的流变应力一应变曲线表现为流变应力先逐渐增加到一个最大值，而后软化。这种流变行为表明在典型的热加工过程中伴随着动态再结晶。该合金的流变应力曲线可以用整个变形温度范围内的双曲正弦函数来拟合。幂指数方程和指数方程并不能很好地拟合应力曲线。双曲正弦方程中的应力指数很高，而且随着变形温度的增高而逐渐增加。合金的热变形过程主要被位错的攀移所控制。合金的平均热变形激活能Q为148kJ／mol，高于Mg的自扩散激活能（135kJ／mol）和点阵扩…
In this study, A2014 alloys were reinforced with varied percentage of Alumina by liquid metallurgy route using permanent moulds. They were Heat treated (T6) and tested for microstructure, mechanical properties and wear behaviour. The wear tests were conducted using Pin-on-Disc apparatus at a constant sliding velocity…
Block copolymers spontaneously form such highly ordered self-assembled structures as opals and bright blue wings of morphos do, which provide very promising photonic crystals for non-linear optical devices to establish a ubiquitous society on the basis of high-speed communication. We control the flow of light by under…
A methoxymethyl group (CH3OCH2-) can exert the polar effect on the physical and electrochemical properties. We have investigated the effect of the substitution of a methyl group with a methoxymethyl group on the physical and electrolytic properties of propylene carbonate (PC or 4-methyl-1,3-dioxolan-2-one). The molar…
A videogrammetry method using one digital camera for noncontact measurements of a distributed normal deformation of construction elements with a flat surface or having a small curvature is developed. Investigations of the surface buckling are performed at the local shell buckling of typical cylindrical fuselage panels…
采用磁控溅射技术，共溅射CuIn合金靶和纯In靶，CuIn合金靶的溅射功率不变．通过改变纯In靶的溅射功率，制备了具有不同In／Cu原子比的CuIn预制层；然后以固态硒粉为硒源，采用三步升温硒化方式对CuIn预制层进行硒化。通过EDS、XRD和SEM分析方法，研究了预制层中不同的In／Cu原子比对铜铟硒（CIS）薄膜的成分、结构和形貌的影响。结果表明：CIS薄膜主要由CuInSe2相构成，但存在少量的CuSe相，随着CuIn预制层中In／Cu原子比的逐渐增大，CuSe相所占比例减少.CIS薄膜中In／Cu和Se／（Cu＋In）的比值也相应增大，CuInSe2大颗粒分布逐渐均匀，大颗粒之间的细小颗粒逐渐消失。
采用盐酸酸化的蒙脱土负载共沉淀法制备的CuO—ZnO—Al2O3，制备了CuO-ZnO-Al2O3蒙脱土催化剂，用BET、FT—IR和XRD对催化剂结构进行了表征，并在固定床微型反应器中研究了其对二氧化碳加氢制备二甲醚的催化活性．在反应混合气空速为1600h-1，蒙脱土：CuO-ZnO-Al2O3=3：7（质量比）的条件下，测定了酸化浓度、反应温度、压力和H2/CO2体积比对催化活性的影响。结果表明，用1mol／LHCl酸化蒙脱土，反应温度为545K，反应压力为3MPa，H2/CO2体积比为3时，CO2的单程转化率达到26．5％，二甲醚的选择性和收率分别为16．7％和414％．甲醇和二甲醚的总收率达到15．7％。
Raman spectroscopy has been utilized for material analysis because Raman spectra provide information about molecular or lattice vibration of materials in a sample. Recently, Raman spectroscopy has been combined to laser scanning microscopy to image biological samples with the chemical information that cannot be detect…
Soil carbon (C) content is a sensitive indicator of agricultural management impact. Different methods are usually adopted to determine soil C content, which can lead to variable results and therefore hinder the correct interpretation of management impacts. In this study, we tested three commonly used soil C determinat…
ZnO-based thin film transistors(ZnO-TFTs) with RF-sputtered ZnO active layer were fabricated at room temperature,and then annealed at 350 ℃ for 1 h in the air environment.Effects of channel width on the electrical properties of ZnO-TFTs were investigated.The threshold voltage increases with the decrease of the channel…
The heterogeneous microstructure of cortical bone may be important in the determination of stress concentrations and shielding in the vicinity of orthopaedic implants. We hypothesise that micropolar elasticity can parameterise the microstructure of cortical bone to better predict local stresses. Threepoint bending tes…
The effects of the multi-walled carbon nanotubes (MWCNTs) addition on mechanical properties and microstructures of spark-plasma-sintered MWCNT/alumina composites are investigated by using four types of MWCNTs that are annealed at different temperatures. The annealing temperatures are 1200, 1800, 2200 and 2600°C, and M…
Light management methods for organic solar cells (OSCs) are presented: (i) thin-film optic method utilizing the inherent asymmetry of semitransparent OSCs; (ii) V-groove-based light-trapping structure as an effective means to enhance the efficiency of OSCs.
The Ministry of Economy, Trade and Industry of Japan reported that about 53% or more of the total electric power generated in Japan was consuming in motors. There are several kinds of motors, however induction motors are most popularly utilizing in factories. Therefore reducing losses and improving efficiency of the c…
王子マテリア江戸川工場は東京都東端に位置し，首都圏から発生する大量の古紙を集荷し易く，製品の消費地に近いという恵まれた立地条件を生かし，地域社会との共存共栄をテーマに白板紙を生産している都内唯一の製紙工場である。当工場5号抄紙機は1971年5月に白板紙専抄マシンとして操業を開始し，現在では，年間約13万トンの白板紙を生産しており，製品は主に紙器用途に使用されている。そこで，5号抄紙機ドライヤーフードは，稼動後39年が経過し各所に劣化が進行しており，既存のオープンフード，給排気設備には下記の問題があった。（1）オープンフードのため蒸気及び給気エアの噴き出しが発生しエネルギーロスとなっていた。（2）フード排熱利用が不十分で，一般的な密…
A Co (catalyst)-Ti-coated silicon foil on which carbon nanotubes (CNTs) are directly grown by thermal chemical vapor deposition (CVD) with/without H2 and using different temperatures/volume flow rates of NH3 is optionally pretreated with hydrogen-plasma. Thereafter the CNTs are treated with nitrogen-plasma, and a mang…