数显温度仪表误差补偿线路

数显温度仪表误差补偿线路马修水，杜皖宁，彭少华，李仁（安徽大学合肥２３００３９）近年来，由于大规模集成电路构成的各种数字式测温、控温仪表的大量问世，已成为传统测温仪表的更新换代产品。一般说来，直接变换型数显温度仪表由下列几部分组成：实验表明，测温仪表...     

提高辊轴筛筛片使用寿命的研究

对辊轴筛筛片的磨损原因进行了分析,并对提高筛片的使用寿命进行了研究实验,认为用具有亚共晶典型组织的白口铸铁制造筛片,能提高耐磨度,其使用寿命为灰口铸铁筛片的3～4倍。     

2—巯基苯并噻唑对NaCl溶液中铜的缓蚀行为

２—巯基苯并噻唑对ＮａＣｌ溶液中铜的缓蚀行为旷亚非，陈曙，林志成（湖南大学长沙４１００８２）１引言苯并三氮峻（ＢＴＡ）和２一流基苯井喷吐（ＭＢＴ）是目前广为使用的铜及铜合金的有效缓蚀剂，但关于ＭＢＴ对铜的缓蚀机理以及ＭＢＴ在Ｃ［ｌ／溶液界面的吸附规律...     

铝在钼酸盐复合电解液中的阳极火花氧化

采用阳极火花氧化处理技术，在含有钼酸盐等金属盐的碱性电解液中，通过阳极氧化在铝表面形成了复合转化膜。对电解液中的各组分在成膜过程中的作用及电解工艺参数对成膜过程和膜层性能的影响进行了研究探讨。通过与铬酸盐化学氧化法、常规阳极氧化法相比较，结果表明，铝表面阳极火花氧化方法形成的膜层比其它膜层有着更好的功能特性。     

Electrochemical behavior of K3Fe（CN）6 in water-in-oil microemulsion

A water-in-oil (W/O) microemulsion composed of Triton X-100, n-hexanol, n-hexane and water solution with hydrochloric acid was prepared. K₃Fe(CN)₆ was added in as a water-soluble electroactive probe, and its electrochemical behavior was investigated by cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). It is found that the H⁺ concentration of the water phase has a great effect on the conductivity of the W/O microemulsion, and hence influences the electrochemical behavior of K₃Fe(CN)₆. When the pH value of water phase is about 7, the electrical conductivity of the W/O microemulsion is only 1.2×10⁻⁶ S/cm, and K₃Fe(CN)₆ almost cannot react at the glassy carbon electrode. But when the H⁺ concentration is more than 3 mol/L, the W/O microemulsion has a good electrical conductivity and K₃Fe(CN)₆ shows good electrochemical performance in it. The results of CV and EIS studies indicate that the electrochemical behavior of Fe(CN)₆ ³⁻/Fe(CN)₆ ⁴⁻ in the W/O microemulsion is different from that in the aqueous solution. This may be due to the unique liquid structure of the W/O microemulsion and the unique mass transfer in the W/O microemulsion. Foundation item: Projects(20673036, J0830415) supported by the National Natural Science Foundation of China; Projects(05JT1026, 2007JT2013) supported by the Science Technology Project of Hunan Province, China     

铸铝合金在有机羧酸体系中电化学陶瓷成膜

利用电化学沉积陶瓷膜（EDCF）技术将铸铝ZL108合金置于有机羧酸复合体系，制得了具有较高硬度和良好外观的灰色类陶瓷膜。详细研究了各工艺参数对膜层性能的影响，结果表明，有机羧酸是主要成膜物质；金属硫酸盐是阳极反应的活化剂，但浓度过高会加快膜层溶解；方波脉冲电源有利于生成厚膜；峰值电流密度越大，成膜时间越短，但过大会使膜层减薄；溶液pH值、搅拌等对成膜过程有一定影响。     

Adsorption behavior of cross-linked chitosan modified by graphene oxide for Cu（Ⅱ） removal

Cross-linked chitosan（CS）,cross-linked chitosan/graphene（CS/RGO10） and cross-linked chitosan/graphene oxide（CS/GO10） were prepared as adsorbents for Cu（Ⅱ）.The effects of pH,contact time,adsorbent dosage and initial concentration of Cu（Ⅱ） on the adsorbing abilities of CS,CS/RGO10 and CS/GO10 to Cu（Ⅱ） were investigated.The results demonstrate that the adsorption capacities of CS/GO10 and CS/RGO10 are greater than that of CS,especially at pH 5.0 and the adsorption capacities are 202.5,150 and 137.5 mg/g,respectively.Their behaviors obey the Freundlich isotherm model very well.Additionally,CS/GO10 has the shortest time to achieve adsorption equilibrium among them and can be used as a perspective adsorbent for Cu（Ⅱ）.     

洛扎诺夫教学法引入VB教学的几点尝试

本文通过对洛扎诺夫教学法的原理和技术特点的探讨,论述了在VB教学活动中如何运用几种暗示策略来调动学生的潜意识、激发学习积极性,并给出了在此教学法下VB教学的设计方法。     

数字网络CAD软件的优化设计

本文通过实例论证了实现数字网络ＣＡＤ软件优化设计的意义和措施，着重叙述了采用ＭＳＩ，ＬＳＩ进行数字网络设计的实现方法。从而证明了采用ＭＳＩ，ＬＳＩ进行设计，是数字网络设计的必然趋势，该方法此类软件升级，扩充的有效途径。     

定向/有序碳纳米管制备的研究进展

综述了国内外有序、定向碳纳米管制备的研究进展。着重介绍了模板法和等离子体增强化学气相沉积技术在碳纳米管制备方面的应用，并就制备原理、影响因素等作了简单介绍。