热离子的

The preparation process includes the following steps: dissolving activator and RE oxide in the molar ratio of 0.01-0.02 in concentrated nitric acid and heating to dry, dissolving the obtain RE nitrate in deionized water to obtain solution of RE nitrate; dissolving soluble tungstate and surfactant in deionized water to obtain tungstate solution; mixing the RE nitrate solution and the tungstate solution through stirring to reaction for 25-60 min to obtain white precipitate; hydrothermal reaction of the precipitate in a reaction kettle at 100-260 deg.c for 24-72 hr; centrifugally separating, washing and drying to obtain the product.

浓硝酸的加入量保证稀土氧化物溶解就可以，过量的硝酸可以加热除去；将可溶性钨酸盐和表面活性剂溶解于去离子水中，得到钨酸盐溶液，表面活剂性的加入量为反应原料重量的0-30wt％；将稀土硝酸盐溶液加入到钨酸盐溶液中搅拌，发生沉淀反应，磁力搅拌时间为25-60分钟，得到白色沉淀；将含有沉淀物的溶液作为前驱物加入到反应釜中，发生水热反应，反应温度为100-260℃，反应时间为24～72小时；离心分离，洗涤，干燥，即得所需产物。

Room temperature ionic liquids have attracted the interests of electrochemist for their specific properties, such as relatively high ionic conductivity, good chemical and thermal stability, wide electrochemical windows and good biocompatibility.

室温离子液体由于具有以下特殊性质，如高的导电性、良好的化学和热稳定性、宽的电化学窗口和良好的生物相容性而受到电化学工作者的青睐。

The results showed that the light stabilizer BHW1 by adding component chelating metal ion in HALS complex had better light stability and balanced performance than other HALS complex .

实验表明：引入金属离子螯合剂组成的复合光稳定体系BHW 1在农用聚烯烃棚膜中应用效果良好，具有更为均衡的光、热稳定性能；自然曝晒实验和大田实验证明复合受阻胺光稳定剂的光稳定性能优于单组份光稳定剂，光稳定剂复合化是聚烯烃防老化最有成效的解决方式之一。

According to the analysis of thermogenic curves, shortened lag phase of bacteria growth, increased growth rate constant and maximum heat power were observed in the presence of Pr(superscript 3+) in low concentration and the results indicated that the growth of E. coli was promoted.

从生成的热谱图分析可以看出，低剂量的稀土离子Pr(上标 3+)的存在可以缩短细菌的停滞期，增加生长速率常数和最大放热功率，刺激大肠杆菌的生长。

This part introduce microporous zeolite compounds , especially the zeolite-like compounds which were developed by Yaghi et al by using thermally stable aromatic polyacid and metal ions as second building unit .

这部分介绍了微孔的类分子筛化合物，特别是 Yaghi 等利用刚性和热稳性本身比较好的芳香多酸和多碱配体和金属离子作为建筑单元发展的的第三代类分子筛，即：金属—有机框架。

Pass the method that designed a layer of heavy chemical element plasma in the outer circle of the D-T plasma , making the time extension of the thermonuclear fusion reaction .

通过在氘氚等离子体的外围设计一层由重元素离子组成的等离子层的办法，使热核聚变反应的时间得以延长。

Taking advantage of better solubility and thermal stability of ionic liquid, the ionic liquid supported acetylacetone catalyst can be simply recycled by water washing or vacuumdistillation.The background of this research is renovation on the traditional oxidation reactions by green chemistry principle.

根据离子液体支载催化剂的两个特性：在水中良好的溶解性和具有很好的热稳定性，在反应结束后通过水洗涤或精馏的方法，很方便的对催化剂进行了回收再利用。

The results showed that expression plasmid pET22b-lysB was constructed successfully. Highly purified recombination protein was obtained 33.2 mg from 1 L LB culture medium. A screening for His-LysB activity on esterase and lipase substrates confirmed the lipolytic activity. With p-nitrophenyl butyrate as substrate, the thermal stability of the enzyme was poor when the temperature was above 30oC. The enzyme exhibited higher stability at pH 5.0–9.5. The optimum temperature and pH for the lipolytic activity of His-LysB were 23oC and 7.5 respectively. Under the optimum conditions, the specific activity of His-LysB was 1.3 U/mg. Zn2+, Cu2+, Mg2+, Mn2+and phenylmethane sulfonyl fruoride severely inhibited the lipolytic activity of His-LysB.

结果表明：成功构建了pET22b-lysB表达载体，并从1 L的LB培养物中获得了33.2 mg高纯度重组蛋白；His-LysB具有分解脂肪的能力，属于脂肪酶；生物化学特性分析表明：丁酸对硝基苯为水解底物，His-Lys热稳定性不佳，30℃以下比较稳定，随着温度的升高，稳定性逐渐降低；该蛋白具有较高的pH值适应性，pH 5.0~9.5范围内稳定性较高；在23℃和pH 7.5时酶活力最高，其比酶活为1.3 U/mg；金属离子Zn2+、Cu2+、Mg2+、Mn2+和苯甲基磺酰氟抑制剂对酶活具有强烈的抑制作用。

Carbonic anhydrase of Vitex negundo in the karst area showed good stability to heatand good adaptability to intimidation of metal with high concentration such as Mg2+、Ca2+、Zn2+、Mn2+、Cu2+ and Co2+.

岩溶地区典型植物黄荆叶片提取的碳酸酐酶具有良好的热稳定性，并对岩溶环境中高浓度的Mg2+、Ca2+、Zn2+、Mn2+、Cu2+、Co2+等金属离子胁迫具有良好的适应性。2。

In 1883 Edison had discovered the thermionic emission phenomenon, alsois called "the Edison effect", namely nearby the metal surface partialelectrons or the ion enable its non- regular movement because of thehigh temperature to obtain the enough kinetic energy, overcomessuperficial the fetter, is leisurely outside the metal.

1883年爱迪生发现了热电子发射现象，也叫&爱迪生效应&，即金属表面附近的部分电子或离子因高温而使其无规则运动得到足够的动能，克服表面的束缚，逸出金属之外。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。