Initial Corrosion Characteristics of Enamel Coated Carbon Steel in Hot Tap Water

Russian Journal of Electrochemistry - The corrosion behavior of enamel coating on carbon steel was investigated in the tap water at 80°C (i.e., the simulated electric hot water tank...     

关于Brandt半群共轭包的结构

在本文中，我们给出了Ｂｒａｎｄｔ半群Ｓ的共轭包Ψ（Ｓ）的刻划，同时也给出Ψ（Ｓ）的全逆子半群Ｔ（Ｓ）的刻划，利用这些结果，我们证明Ｔ（Ｓ）在Ψ（Ｓ）中是自共轭的．     

The structure ofP-regular semigroups

This paper gives some equivalent definitions of stronglyP-regular semigroups and characterizes the structure ofP-regular semigroups as the spined product of fundamentalP-regular semigroups and regular *-semigroups. This work is supported by the National Nature Science Foundation of China.     

Influence of Cu on the microstructure and corrosion resistance of cold-rolled type 204 stainless steels

Journal of Solid State Electrochemistry - The microstructure and corrosion behavior in 3.5% NaCl solution of type 204 metastable austenitic stainless steels with 15% cold-rolling reduction and...     

用液相制备色谱从菜籽中分离、纯化制备硫代葡萄糖苷

从我国甘蓝型、芥菜型油菜籽中,用弱离子交换剂ＤＥＡＥＳｅｐｈａｄｅｘＡ－２５作固定相,Ｋ＿２ＳＯ＿４作流动相,采用自动柱色谱仪分离制备非吲哚类硫代葡萄糖苷和吲哚类硫代葡萄糖苷结晶粗品。从非吲哚类硫代葡萄糖苷结晶粗品中进一步分离和纯化,制得２－羟基－３－丁烯基硫代葡萄糖苷和３－丁烯基硫代葡萄糖苷的钾盐晶体。经元素、熔点分析和质谱、红外图谱、紫外图谱、ＨＰＬＣ图谱证实,结晶物可作为硫代葡萄糖苷定性和定量分析时的标准物。     

On the construction of the conjugate hull of Brandt semigroups

In this paper the characterizations of conjugate hulls ψ (S). ϕ(S),T(S) and θ(S) on a Brandt semigroupS are given. By using these results we can pro thatT(S) is self-conjugate in ψ(S) for a Brandt semigroupS. This work is supported by National Natural Science Foundation of China     

Fe~(3+)离子对二氧化钛光电化学催化性能的影响

应用电化学阳极氧化法制备Ti上多孔状纳米晶TiO2薄膜,以及不同Fe3+离子掺杂量的二氧化钛薄膜.研究了Fe3+离子掺杂对二氧化钛薄膜吸收光谱和光催化活性的影响,发现Fe3+的掺杂使薄膜的吸收带边发生红移,在可见光照射下其光催化活性也有一定的提高.     

Pitting corrosion resistance of sensitized type 2205 duplex stainless steel in hot concentrated seawater

Journal of Solid State Electrochemistry - Pitting corrosion resistance of 2205 duplex stainless steel aged at 850 °C was investigated in the hot concentrated seawater (i.e., the...     

三种添加剂对纳米晶锌镀层电沉积行为及结构的影响

运用极化曲线、XRD和SEM研究了三种有机添加剂对酸性硫酸盐溶液中锌电沉积行为以及纳米晶锌镀层结构的影响.结果表明,十六烷基三甲基溴化铵(CTAB)、4-苯基-3-丁烯-2-酮(BA)和聚乙二醇(PEG)三种添加剂之间具有较强的协同作用,采用三者组成的混合添加剂可制备出光亮致密的纳米晶锌镀层.镀层晶粒细化的主要原因在于混合添加剂可有效提高锌的沉积过电位,使锌沉积过程中的晶核形成速率增大.     

Some Characterizations of a Class of M-matrices

ＳｏｍｅＣｈａｒａｃｔｅｒｉｚａｔｉｏｎｓｏｆａＣｌａｓｓｏｆ　Ｍ－ｍａｔｒｉｃｅｓＬｉＷｅｎ（黎稳）ａｎｄＺｈａｎｇＭｏｕｃｈｅｎｇ（张谋成）（ＤｅｐａｒｔｍｅｎｔｏｆＭａｔｈｅｍａｔｉｃｓ,ＳｏｕｔｈＣｈｉｎａＮｏｒｍａｌＵｖｉｖｅｒｓｉｔｙ,Ｇ...