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Carbon Paste Electrode Prepared from Chemically Modified Multiwall Carbon Nanotubes for the Voltammetric Determination of Isoprenaline in Pharmaceutical and Urine Samples

Ali A. ENSAFI* , Hajar BAHRAMI , 0Hassan KARIMI-MALEH , Shadpour MALLAKPOUR

催化学报 doi:10.1016/S1872-2067(11)60465-8

A carbon paste electrode with added multiwall carbon nanotubes chemically modified with N-(3,4-dihydroxyphenethyl)-3,5-dinitrobenzamide was used as the electrochemical sensor for the determination of trace amounts of isoprenaline. The modified electrode showed good electrocatalytic activity for the ...

关键词: isoprenaline , carbon nanotube , electrode , electrocatalytic effect , voltammetry

Sintered Fe08%C10%Si04%Cu P/M Steel Preform Behaviour During Cold Upsetting

A Rajeshkannan , K S Pandey , S Shanmugam , R Narayanasamy

钢铁研究学报(英文版)

Cold upsetting experiments were carried out on sintered Fe08%C10%Si04%Cu steel preforms in order to evaluate their deformation characteristics. Powder preforms of 86% of theoretical density, with two d...

关键词: cold upsetting;stress;height strain;densification;work hardening behaviour

TM0n0圆柱腔测量介质复介电常数

徐汝军 , 李恩 , 周杨 , 郭高凤

宇航材料工艺 doi:10.3969/j.issn.1007-2330.2010.05.021

讨论了TM0n0模圆柱腔法测量介质复介电常数的原理,提出了一种TM0n0模圆柱腔设计的改进方法,研制了测试夹具,通过与未改进腔体比较和对石英样品复介电常数的测量.结果证明,该腔...

关键词: 微波测量 , 复介电常数 , 圆柱腔

正交场E0×B0飘移电子的自发辐射

熊平凡

量子电子学报 doi:10.3969/j.issn.1007-5461.2000.04.006

根据经典的单粒子运动方程和加速电子产生辐射的规律，计算得到了静态均匀正交场 E0×B0飘移电子时产生自发辐射的谱函数．结果对具有任意速度量值的电子均适用．作为特殊情况，讨论了...

关键词: 正交场 , 飘移电子 , 自发辐射

Ball Milling Synthesis and Property of Nd0:7Sr_0:3MnO₃ Manganites

Shunsheng Chen Changping Yang Lingfang Xu Shaolong Tang

材料科学技术（英文）

Strontium doped perovskite-type Nd0:7Sr_0:3MnO₃ ceramics were synthesized completely by high-energy ball milling raw oxides of Nd₂O₃, SrCO₃ and MnO₂. The optimal ball millin...

关键词: High-energy ball milling , Perovskite structure , Colossal electroresistance (CER) , Microstructure defect

ON THE ADOPTION OF λ_0 VALUE FOR ROSCOE'S EQUATION

GUO Wenquan WANG Jingtang Laboratory of Rapidly Solidified Non-Equilibrium Alloys , Institute of Metal Research , Academia Sinica , Shenyang , China

金属学报(英文版)

Considering the availability and derivation of Roscoe's equation for absolute viscosity calcula- tion,the method to adopt λ_0 value,so-called λ_f,was proposed by experimentally deter- mining relational curve of the measured height,H,of metal melt vs logarithmic oscilla...

关键词: liquid metal , null , null , null

标量介子f0(980)光生过程γp → pf0(980)的研究

张豫 , 谢聚军 , 陈旭荣

原子核物理评论 doi:10.11804/NuclPhysRev.33.04.409

轻标量介子性质研究是当今中高能核物理研究中的热点问题之一,特别是质量低于1 GeV的标量介子f0(980)的内部结构一直存在争议,至今未达成共识.基于前人的研究结果,运用有效拉氏量方法,对f...

关键词: 光生过程 , 轻标量介子 , 费曼传播子

Kinetics of Silver Dissolution in Nitric Acid from Ag-Au0:04-Cu0:10 and Ag-Cu0:23 Scraps

S.K.Sadrnezhaad , E.Ahmadi , M.Mozammel

材料科学技术（英文）

Kinetics of dissolution of silver present in precious metal scraps in HNO3 was studied in temperature range of 26~85℃. Dissolution rate of silver was much faster than that of copper at all temperatures. Effects of particle size, stirring speed, acid concentration and temperature on the rate of disso...

关键词: Silver , null , null , null , null , null