Materials Literature
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石墨烯材料和酶的固定对石墨烯基生物传感器性能及应用至关重要。金电极依次放入氧化石墨（0.05 mg/mL）和氯金酸（0.05 mM）溶液中进行控制电位电解,循环以上操作20 次后,转移至2,5-二(2-噻吩)-1-对苯甲酸吡咯单体溶液采用循环伏安法进行电聚合形成含有羧基的导电高分子膜,然后以DHC/NHS 为活化剂将辣根过氧化物酶共价键合在修饰电极表面制备过氧化氢生物传感器。研究表明,交替电沉积得到的石墨烯/金纳米复合材料分散性好,所制备的生物传感器对过氧化氢的氧化还原过程有显著的催化作用。过氧化氢浓度在2~200 nM 之间传感器的电流响应与浓度呈线性关系,相关系数（R2）为0.9996,方法的检测限是0.67 nM (S/N=…
The ability to target proteins with nanostructures and/or nanodevices in vivo is important for understanding and controlling their biological function. Quantum dots (QDs) serve as an ideal model nanostructure due to their superior optical properties that permit visual confirmation of in vivo targeting and localization…
Tahereh Sadat Jafarzadeh Kashi1, Solmaz Eskandarion1,2, Mehdi Esfandyari-Manesh3,4, Seyyed Mahmoud Amin Marashi5, Nasrin Samadi6, Seyyed Mostafa Fatemi1,7, Fatemeh Atyabi2,3, Saeed Eshraghi8, Rassoul Dinarvand2,31Dental Materials Department, Faculty of Dentistry, 2Department of Pharmaceutics, 3Nanotechnology Research…
在商业飞机引擎设计的一个关键问题是环境可接受程度，并且设计者不断地被质问减少排出物。在这份报纸，试验性的调查被执行评估用液体燃料推进的排放表演在瘦 premixed prevaporized (LPP ) 下面的套住的旋涡燃烧室(TVC ) 模式。当作为一个 LPP 系统操作时， TVC 在洞并且在主要溪流被造成。在排放性能和全部的过量空气比率，在主要的流的燃料注射者的位置(4 个位置) ，和入口温度之间的关联被获得。试验性的结果两个都显示出那 unburnt 烃(UHC ) 和 NOx 的体积集中(不， NO2 通常作为 NOx 一起组织了) 有从 1.5 ～ 3.0 的全部的过量空气比率的增加的增加；排放表演重重地依靠主要溪流…
Based on the Bethe's theory for small aperture coupling and the eigen-mode expansion method, an approximate analytic model for the field distribution inside a rectangular cavity with apertures under plane wave illumination is presented. The effects of aperture shape, dimensions, number, position, and the wave incidenc…
One-dimensional tungsten oxide nanowires are synthesized by the solvothermal method. The sensors based on tungsten oxide nanowires/single-wall carbon nanotubes (SWNTs) composites are fabricated by introducing SWNT, and their NO2 sensing properties are evaluated at room temperature. X-ray diffraction and field emission…
高速道路用地内で生育する樹木・草は，道路環境維持のため日々刈り取り・除去されているが，その量は膨大である。道路の維持管理で発生した剪定枝・刈草等の植物類 (以下，植物発生材という) の処理方法として，主として堆肥化プラントが採用されてきた。このたび新しい試みとして植物廃材の熱分解発電プラントが採用されることとなり，その実証実験プラントが東日本高速道路（株）の東北自動車道那須高原サービスエリアに建設された。 本プラントは，廃棄物処理法では ｢一般廃棄物の熱分解施設｣ に区分される廃棄物の中間処理施設であるが，プラントエンジニアリングの立場から見ると，化学反応によって原料から有用な物質を製造する化学プラントの一種であり，実際その技術開…
This paper describes the method for calculating the Secant Modulus of Elasticity for concrete used within road structures (across the fourth Pan-European corridor, Nadlac-Arad section), namely prestressed concrete bridge beams with pre and post tensioned reinforcements, with lengths between 25 and 41 meters. The deter…
Large scale fire tests conducted in a number of countries and observations of actual building fires have shown that the fire performance of composite steel framed buildings is much better than is indicated by fire resistance tests on isolated elements.It is clear that there are large reserves of fire resistance in mod…
In order to optimize the surface electric field of the traditional AlGaN/GaN high electron mobility transistor and improve the breakdown voltage and reliability, a new AlGaN/GaN high electron mobility transistor is proposed with the partial fixed positive charges in the Si3N4 passivation layer in this paper. The parti…
In this paper we investigate the interaction between soil and agricultural tools by computer simulations. From the nature of the soil-tool interaction comes high rate of deformation and displacement. To be able to handle these circumstances and successfully perform an analysis we have chosen a mesh-free method called…
Power Transformers are a vital link in a power system. Well-being of power transformer is very much important to the reliable operation of the power system. Dissolved Gas Analysis (DGA) is one for the effective tool for monitoring the condition of the transformer. To interpret the DGA result multiple techniques are av…
Transition metal carbides and nitrides have great potential as an electrode material in electronic devices and electron emitters, where work function plays a crucial role. Because of the difficulty of preparing well-characterized metal carbides and nitrides in terms of stoichiometry (free of carbon or nitrogen deficie…
Foundry Al-Mg alloys play an important role in overall foundry industry of light metals due to their outstanding properties, although their solidification mechanism has not been clearly determined. Solidification overview of multicomponent technical AlMg9 alloy was obtained in this work. One of significant achievement…
The influence of temperature on cleavage fracture facet is evaluated by fractography as a basic research to investigate the mechanism of cleavage crack propagation in the micro scale. Cleavage fracture surfaces are obtained by three point bending test using specimens with machined notches under several test temperatur…
Atomic layer deposited (ALD) Al2O3 provides a high passivation quality on silicon surfaces, in particular on p- and p+-surfaces. For surface passivation of the base of p-type solar cells and the p+-emitter of n-type solar cells typically capping layers are required, e.g. SiNx. For such Al2O3/SiNx stacks the thermal st…
A series of linear coordination polymers, metallacycles of cadmium(II) and mercury(II) of flexible carboxylic acid ligands, RCH{3-CH(3)-,5-CH(3)-,6-(-OCH(2)CO(2)H)C(6)H(2)}(2), (when R = C(6)H(5), (H(2)L(1)); 2-NO(2)C(6)H(4)- (H(2)L(2)) and 3-NO(2)C(6)H(4)- (H(2)L(3))) are synthesized and characterized. [CdL(1) (py)(3…
Random Process of Filamentary Growth and Localized Switching Mechanism in Resistive Switching of SiOx Thin Films, Chen, Yen-Ting, Fowler, Burt, Wang, Yanzhen, Xue, Fei, Zhou, Fei, Chang, Yao-Feng, Lee, Jack C.
Charged donor-acceptor [2]catenanes containing cyclobis(paraquat-p-phenylene) as the ring component can be synthesised in yields of up to 88% in under one hour by heating two precursors in the presence of macrocyclic polyether templates in N,N-dimethylformamide at 80 °C.
Carbohydrates play crucial roles in a wide range of biological processes, including serious diseases. The development of novel and innovative methods for selective control of specific oligosaccharide functions has attracted much attention in the fields of chemistry, biology, and medicine. In this feature article, the…