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Study on synthesis of phosphonic acid with thiadiazole and corrosion resistance on copper;2. Synthesis of N,N-dimethyl-1-aminomethane-1,1-di phosphonic acid N-oxide and researches on its corrosion and scale inhibition performances;3. Two phosphonic acid s: dodecylamine-N,N-dimethylene phosphonic acid and dodecyl phosphonic acid,were used to modify zirconia stationary phase in this paper.

通过红外、元素分析对2种不同类型的膦酸化合物改性氧化的改性条件和改性机理进行了研究,结果表明:十二烷基膦酸通过Lewis酸碱作用改性,室温浸泡即可达到满意的吸附量;而具有螯合结构的十二胺-N,N-二亚甲基膦酸与氧化结合时存在较强的络合作用,最佳改性条件为酸性条件下加热回流。

The factors of temperature and humidity influenced on film thickness and order of layer were studied, in which pulling speed and pulling times were also included. It showed that the thickness of single dip-coating film reached 0.23 μm ~ 0.625 μm, and the degree of order of surface layer were still holding much higher.b Adopting calcined or uncalcined mesoporous silica membrane as matrix, nano zirconia particles were assembled through ion exchange method and ion-template exchange method.

结果表明,单次提拉膜膜厚0.23μm~0.625μm、8次提拉后表层膜仍有一定的有序性; b以自制的介孔氧化硅煅烧/未煅烧厚膜样为基体,采用离子交换法/离子模板交换法组装氧纳米粒子,选用DSC-TG、FT-IR、Uv-vis、SAXRD等对不同组装方法、源浓度、pH值等组装条件下ZrO_2/介孔氧化硅厚膜组装效果进行评价。

Amounts of hydroxyl groups and specific surface areas of silica xerogel are higher, therefore it has more adsorption activated positions.

第四,通过在水溶液中的存在特性和SiO〓干凝胶表面特性的分析,研究了SiO〓干凝胶对的吸附机理。

Based on zircon SHRIMP U-Pb, Sm-Nd and Ar-Ar isotopic datings and trace elements data of zircon and whole rock of the mafic granulite from Huilanshan in Lotian doming, we concluded that the protolith of the mafic granulite shoud be the Neoproterozoic mafic rocks, the granulite facies metamorphism of this rock was occurred at 124.0?.

罗田穹隆惠兰山基性麻粒岩的石U-Pb、Sm-Nd和Ar-Ar定年及石和全岩微量元素地球化学工作证明该麻粒岩的原岩形成于晚元古代,其麻粒岩相变质作用发生在124.0?。

Theoretical study on the change of HOMOs and LUMOs gaps illustrates that cubic-like structures are more favorable than others growth modes, namely the cubic zirconia nucleates favorable, this fact accords well with previous experimental results.

对各种生长模式的最高占据轨道能和最低空轨道的能量的差值与团簇的尺寸变化可以发现,氧化团簇最容易以类立方结构的生长模式生长,即立方相氧化团簇结构容易形核生长,这是符合先前的实验结果的。

Many crustal zircons have the age (up to 2770Ma) that is much earlier than the formation of ophiolite considered by previous researchers, indicated the abundant subduction crust components occur in the zircons separated, which was preserved in the mantle, and outcropped with the mantle cycle process.

纯橄岩样品四个测点得到加权平均值为130.0±2.8Ma,属早白垩世,代表了纯橄岩的结晶年龄;研究中发现许多地壳成因的古老石(最老可达太古代2770Ma),远远早于目前主流观点中蛇绿岩的形成时间中生代晚期,综合考虑认为所选石有大量俯冲地壳成分,在地幔中保存,后随地幔循环运移出露地表。

Production and operation of the Company's jewelry / accessories cover has: 18K gold, 14K gold, 9K gold, silver, 925 silver, copper, 316L stainless steel, alloy;(gemstones / semi-precious stones in part): diamond, white zircon, Cai zirconium, stained glass, agate, crystal,, Opal, turquoise, black Tahitian pearls, imported high-grade shells, coral and natural all over the world, such as miscellaneous total more than 200 kinds of stone.

本公司生产经营的首饰/饰品涵盖有:18K金、14K金、9K金、纯银、 925银、铜、316L不锈钢、合金;:钻石、白、彩、彩色玻璃、玛瑙、水晶、虎眼石、猫眼石、松石、大溪地黑珍珠、进口高档贝壳、珊瑚以及世界各地的天然杂石等共有200多种。

ZA Swinging Fibre,abopting HP Alumina.Silica Powder,Zirconia as the material,melted by Resistance Furnace,blowing or swinging,is produced by swinging technology.

型硅酸铝耐火纤维棉,以高纯氧化铝硅石粉及英沙合成为原料,经电阻炉熔融喷吹或甩丝成纤工艺生产而成。

The results show that the metal zirconium can be prepared by this method, and that the electrodeoxidation current of ZrO2 cathode is the biggest under the pressure of 16 MPa and sintering temperature of 1 000 ℃, and also ZrO2?

结果表明:采用直接电脱氧法可以制备金属;16 MPa、1 000 ℃时制备的阴极片电脱氧反应的平均稳定电流最大;产物中既含有的低价氧化物ZrO2?

The results show that chromium and zirconium can react with O2 and N2 from protective atmosphere; the zirconia and magnesia have a good stability for Cr and Zr, therefore, they can be used as crucible and furnace lining materials for Cu-Cr-Zr alloy melting.

结果表明,在熔炼温度下,炉气中微量氧气和氮气都能与合金组元中的铬和发生化学反应而使其烧损;金属氧化物ZrO2和MgO等对于铬和具有良好的化学稳定性,可以作为熔炼Cu-Cr-Zr系合金的坩埚和炉衬材料。

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With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务,乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐,因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。

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关闭眼睛,深呼吸,一切不再是梦想,犹如。。。。。。