活化

The effects of activation temperature and activation time for the catalyst and the esterification conditions on the yield of isoamyl isovalerate were investigated.

用纳米级HZSM-5分子筛作催化剂合成了异戊酸异戊酯，考察了催化剂的活化温度和活化时间以及酯化反应条件对酯收率的影响。

The results indicated that the concentration of Cu in the soil is 220.16 mgkg^(-1) contrast to the CK 500.31 mgkg^(-1) significantly decrease when the concentration of EDTA in the soil is 2 mmolkg^(-1) that explains EDTA treatment significantly decreased soluble Cu content in soil because of translating into Cu of water distill floating on the surface of soil and most accumulating around root. Contemporary, application of EDTA to the soil significantly enhanced mobilization of Cu in soil and increased Cu uptake in shoot of Leersia hexandra Swartz., the highest concentration in the leaves 336.54 mgkg^(-1) is 4 times higher compared with the ck 80.34 mgkg^(-1). However, citric acid, oxalic acid and malic acid inhibited mobilization of Cu and less significantly affected shoot Cu accumulation.

结果表明，当向土壤中施加质量摩尔浓度为2mmolkg^(-1)的EDTA时，土壤中Cu质量分数为220.16mgkg^(-1)与空白土壤中500.31mgkg^(-1)相比明显减少，说明EDTA可以极显著的降低土壤中的铜质量分数，使其转化成水提取态的Cu浮于土壤表面，并大部分聚集在根部周围，同时向土壤中施加EDTA不但促进了对Cu的活化而且显著提高了李氏禾对Cu的吸收，叶中最高质量分数达到336.54mgkg^(-1)是对照中80.34mgkg^(-1)的四倍；而柠檬酸、草酸和酒石酸则抑制了Cu的活化，但对李氏禾地上部分的Cu质量分数影响不大。

We employed an easily observable and manipulatable system in which activated and non-activated T-cells were co-cultured with a stable well-characterized clone of lacZ-expressing murine NSCs.

我们采用了直观且简单易行的系统，将活化和未活化的T细胞与稳定的lacZ表达的鼠类NSCs共培养。

Using butyl-xanthate as collector, marmatite can be activated by Cu2+ with the presence of glyceryl-xanthate and then possesses good floatability,while pyrite can't be activated,therewith these two minerals can be separated.

结果表明，用丁黄药作捕收剂，在甘油基黄原酸钠存在下铁闪锌矿能被Cu2+活化从而具有良好的可浮性，而黄铁矿不能被Cu2+活化，从而实现两种矿物的选择性分离。

Marmatite ; pressure leaching ; iron kinetics ; reaction activation energy ; diffusion activation energy

高铁闪锌矿；加压酸浸； Fe动力学；反应活化能；扩散活化能

First, we investigate the methods of sepiolite s purification from ore , from which we get the incompact short fibrous sepiolite for the experiment ; the prime activatited term is also obtained through this experiment. We use activated sepiolite to process the absorption experiment on heavy meatal ion ( Ni2+, Cr6+, Pb2+, Cu2+, Cd2+), noble metal ion, dynamite cotnposton in water and industrial oil. we take Ni2+ for example to confirm the prime adsorbent term , from the experiment we get the adsorbent isotherm . Make the dynamic absorption experiment and regenerate experiment using sepiolite on the heavy metal(Ni2+) on the base of static absorption experiment.

我们首先研究了从矿石中提纯海泡石的方法，制得供实验用的松散短纤维状海泡石；通过实验确定了最佳活化条件；进行了活化后的海泡石对重金属离子Cr~(6+、Pb~(2+)、Cu~(2+)、Cd~(2+)、贵金属离子、水中炸药组份、工业油的吸附实验；以Ni~(2+)为例选择了最佳吸附条件；通过实验作出了以上各组分的吸附等温线；在静态吸附实验的基础上进行了海泡石对重金属Ni~(2+的动态吸附实验及再生实验。

However, it did speed up the dissolution in the prepassive range, changing oscillation behaviors of iron in 0.5 mol.dm-3 H2SO4. The reactivation process of passivated iron was mainly determined by the electrode potential, and had little to do with the external magnetic field. The investigation also proves that holographic microphotography is a very effective technique in the study of effects of the magnetic field on the electrochemical processes.

外加磁场对铁的活化溶解没有明显的影响，但加快了预钝化区铁的溶解，从而显著改变铁的电化学振荡行为；钝化铁再活化过程主要取决于电极电位，与外加磁场没有关系；研究表明全息显微术是磁电化学研究中一种十分有效的方法。

Four different ionic liquids, BF4, BF and PF6 were investigated, arid PF6 showed the best effect when used as the reaction media, giving the highest yield in the shortest reaction time. Promoted by KF in PF6, N-aryl or N-alkyl monosubstituted sulfonamides could react with various activated halides and unactivated primary halides smoothly. Reactions were performed at 85℃ for 2~10 hours, and thirteen N-alkylation products were obtained with 70%~97% yields. Moreover, the ionic liquid recovered could be reused for three times with no appreciable decrease in yield and reaction rate.

结果表明，以PF6为反应介质时显示出了最好的效果，反应的时间最短，收率最高。N-芳基或N-烷基单取代的磺酰胺和各类不同结构的活化的卤代烃和未活化的一级卤代烃在PF6中KF作用下，85℃反应2~10h，以70%~97%的优良收率得到了13个N-烷基化产物，而且离子液体回收使用3次后效果未降低。

In other words, we prove our working hypothesis related to immune hyper-activation within intestinal mucose during HIV infection by the studies.

而在HIV感染时，由于危险信号的释放，病毒子模拟APc的作用，调节性T细胞优先被删除等原因导致生理性低反应性状态被打破，而出现免疫过度活化，从而产生更多的HIV易感细胞，通过直接感染以及活化诱导细胞凋亡，使肠道T细胞在短期内大量丢失，从而导致免疫缺陷。

The invention is made though synthesizing inorganic reinforced components with optimized surfactant and antistatic agent and has the advantages of toxin-free, hazard-free, nonirritant, chlorine-free, flame retardant and non-corrosive.

本发明含聚羧酸系的复合活化水泥增强助磨剂是通过高效磁化活化和复合技术合成的中性高效复合水泥添加剂。

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。