二倍的

Combining the performance evaluation (activity, selectivity and stability) and the characterization of the catalysts (XRD, TPD, FTIR and the pore structure measure), it can be concluded that :(1)The activity of modified β is higher than MCM-22, but the selectivity of ethylbenzene is lower about 3% than that of MCM-22;(2)The mounts of diethylbenzene and the other by-products are higher 1.7 times and 1.5 times than these of MCM-22 respectively;(3)The catalytic performance of zeolite mixture is nearly equal to modified β, but the selectivity of ethylbenzene is higher about 0.5% than that of modified β;(4)The catalytic activity of zeolite is mainly correlated with the number of acid sites, strength and distribution, and the distribution of products is determined by the binding energy of ethylbenzene and the pore structure, while the stability of catalyst is affected by the amount of poly-ring aromatic alkylate and the pore structure.

以性能评价和特性表征（XRD、TPD、FTIR和孔结构测定）相结合的方式，对上述三种催化剂性能比较的结果表明：（1）改性的活性明显高于MCM-22，但乙苯选择性却低于MCM-22绝对差约3%；（2）改性(上二乙苯和其他副产物的生成量分别约为MCM-22上对应值的1.7和1.5倍左右；（3）混合型催化剂的性能与改性相仿，但乙苯选择性提高0.5%左右；（4）对乙苯合成，沸石催化剂的活性主要取决于其B酸中心数、酸强度及酸分布，产物分布则取决于催化剂表面的乙苯脱附能垒值和孔道结构，而稠环芳烃的生成量和催化剂孔道结构是影响催化剂稳定性的主要因素。

The influences of the shock thickness and Alfven waves on the particle acceleration by diffusive shock waves are numerically studied through solving one-dimensional diffusive equation including the second-order Fermi effect. It is shown that the spectral index of the energetic particles strongly depends on the shock thickness. For example, the spectral index increases from 2.1 to 3.7 in the low energy range of 3-10 MeV and from 2.5 to 5.0 in the high energy range of 20-60 MeV as the thickness increases. The spectral index decreases from 4.3 to 3.1 as the particle injection energy increases. The spectral index decreases from 4.0 to 1.8 at the quasi-steady stage with the enhancement of the compression ratio from 2 to 4. The results indicate that under the influence of Alfven waves, the energetic particle spectrum at lower energy becomes flat and the spectral index decreases from 2.5 to 0.6 in the low energy range of 3-10 MeV and from 11.6 to 5.0 in the high energy range of 20-60 MeV. At the same time, the rollover energy reaches 19.6 MeV. The spectral index decreases from 5.8 to 2.9 as the energy density of Alfven waves increase. All these results are basically consistent with the theoretical models, as well as the observations of typical energetic particle events.

通过数值求解包含二阶费米加速的一维扩散方程，探讨在准平行激波条件下激波厚度和级联阿尔芬波对粒子加速的影响，研究粒子分布函数的演化与激波厚度和阿尔芬波强度的内禀关系，计算结果表明：(1)考虑激波厚度时，谱指数明显依赖于激波厚度，随着厚度从0.32增大到2.56，低能端(3-10MeV)谱指数逐渐从2.1增加到3.7，高能端(20-60MeV)谱指数从2.4增大到5.0，能谱逐渐变软；当初始注入粒子动量增大1.3倍，质子能谱指数从4.3减小到3.1，且与零厚度激波加速的谱指数差值缩小；厚度不变时，随着压缩比从2增加到4，准稳态分布时低能端(3-10MeV)粒子能谱指数逐渐从4.0减小到1.8谱变硬；(2)在级联阿尔芬波的影响下，随着时间的增大，粒子在低能处(3-10MeV)的谱指数从2.5减小到0.6高能端(20-60MeV)谱指数从11.6减小到5.0，能谱变硬，拐点能量值从7.5MeV增大到为19.6MeV；随着波的能量密度增大，谱指数从5.8减小到2.9，这表明阿尔芬波强度越大，加速效率越高，通过与激波厚度解析结果和高能粒子事件的观测能谱比较发现两者是一致的，说明数值模拟结果是可靠的。

Alas, I sold my entire GEICO position in 1952 for $15,259, primarily to switch into Western Insurance Securities. This act of infidelity can partially be excused by the fact that Western was selling for slightly more than one times its current earnings, a p/e ratio that for some reason caught my eye. But in the next 20 years, the GEICO stock I sold grew in value to about $1.3 million, which taught me a lesson about the inadvisability of selling a stake in an identifiably-wonderful company.

可惜的是，在1952年我以15，259美元的价钱将全部的GEICO股份出清，然后将所得资金投入到西方保险证券公司之上，这项变心的举动，一部份的原因是因为西方保险证券当时的股价相当吸引人，本益比只有一倍左右，然而在往后的二十年间，当时被我卖的的GEICO股份的价值却成长到1，300万美元，这样的结局让我体会到绝对不能卖掉一家明显的好公司的原则。

II. c. 2.(that second magna carta, and stable bulwark of our liberties) it is enacted, that no subject of this realm, who is an inhabitant of England, Wales, or Berwick, shall be sent prisoner into Scotland, Ireland, Jersey, Guernsey, or places beyond the seas;(where they cannot have the benefit and protection of the common law) but that all such imprisonments shall be illegal; that the person, who shall dare to commit another contrary to this law, shall be disabled from bearing any office, shall incur the penalty of a praemunire , and be incapable of receiving the king's pardon: and the party suffering shall also have his private action against the person committing, and all his aiders, advisers and abettors, and shall recover treble costs; besides his damages, which no jury shall assess at less than five hundred pounds.

并且，通过人身保护法案，查理二世第31年法案第二章（可以称之为第二部大宪章，我们的自由的稳定的防波堤）规定：本王国内的臣民，即英格兰，威尔士或贝瑞克（Berwick，以前属于苏格兰的郡；联合王国存在三种虽相近然而彼此独立有所区别的法律系统：英格兰，苏格兰和北爱尔兰法律系统，因而这部著作名"the laws of England"译成"英格兰法律"才恰当）的居民，不得将被监禁者遣送至苏格兰，爱尔兰，泽西，格恩西，或海外任何地方；（被监禁者在这些地方不能得到共同法的保护和利益）这样的监禁均为非法；任何人，若胆敢违背这部法律行事，应当取消担当任何公职的资格，应当得到警告，并且不能获得国王的宽恕：遭受监禁的人，可以起诉监禁者和他的协助者，他的建议者和教唆者，并获得损失的三倍补偿；此外，审判团对他的损失的评估，不得低于五百英镑。

So we adopted the isotope marking method in order to know the distribution of BBP in male and female mice. The result indicated 〓H-BBP presented the first-order kinetics and matched the open two-compartment model. Distributional half-life was about 20 minutes and eliminable half-life was about 6-7 hours. As α(the speed constant of distributional phase) was about ten times β(the speed constant of eliminable phase), this compound had a fast distribution and a low elimination.

为了揭示BBP致毒有明显性别差异的原因，采用同位素标记方法示踪BBP在雄、雌动物体内的归趋，结果表明：BBP在动物体内呈一级动力学线性过程，符合二室开放模型，分布半衰期为20min左右，消除半衰期为6-7hr左右，分布相的速度常数α是消除相的速度常数β的10倍左右，说明该化合物在体内的分布较快、消除慢的特征。

D limonene was distributed among the culture flasks (200 mg/L). The flasks were incubated at 28oC on a rotary shaker (r/min=120) for 5 days. On completion, the culture broth were successively extracted with EtOAc. The extract was quantitatively measured by gas chromatography mass spectrometry analysis, The results showed that biocatalytic reactions were comprised of oxidation, including hydroxylation and ketonization which occurred at different positions of the D limonene, as well as hydrogenation, hydrolyzation, esterification and cyclic cleavage. These bacteria strains possess the distinctive biocatalytic capacities towards the D limonene. A series of terpenoids, including sesqui , di and tri terpernoids were also observed,which was accounted for D limonene had influence on the metabolites of marine bacteria.

以2216E为培养基，添加200mg/L的柠檬烯，在28℃，以120 r/min摇瓶培养5 d，用乙酸乙酯提取培养液，经GC MS分析其转化产物，结果显示，这些细菌能在柠檬烯的不同位置进行羟基化、羰基化等，并伴随有还原、水解、酯化、开环等反应，但转化能力和转化程度不同；在产物中，还检测到系列结构不同的其它萜类：包括倍半萜、二萜以及三萜等，这些萜类化合物的产生跟柠檬烯的加入有关，说明柠檬烯能影响细菌代谢产物的产生。

A novel kind of oligomer PPV derivative containing oxadiazole in the main chain was synthesized according Heck reaction, efficiency of single layer OPPV device was about five time higher comparing with single layer PPV device, which was attributed to the improved, balance of carrier injection and transportation.

三、利用Heck反应合成了PPV主链上含有恶二唑基团的可溶性低聚物OPPV，OPPV的单层器件的效率较单层PPV器件的效率提高5-10倍，证明了单层器件亮度和效率的提高是载流子平衡注入和传输的结果。

Results:The cell aggregations had differences in shape as well as size, flavone content, enzyme activities, growth speed and so forth. The flavone content of the smallest cell aggregation was approximately twice compared to the larger ones, and its malonaldehyde content, the phenylalanine ammonialyase and peroxide enzyme activities and recultivate curve presented the same change tendency.

结果：不同的细胞聚集体在形态大小、黄酮含量、酶的活性、生长速度等方面均存在着差异，其中颗粒最小的细胞聚集体黄酮含量约为颗粒较大的细胞聚集体的2倍，并且其丙二醛含量、苯丙氨酸解氨酶及过氧化物酶的活性及再培养曲线均具有相同的变化趋势。

Given the record of the last two decades, it becomes increasingly hard to see how sub-Saharan Africa, for example, will experience a projected quintupling of human numbers within another century as long as gross environmental impoverishment continues to spread.

给最后二十年的记录，只要总共的环境贫穷继续传布，它变成逐渐困难见到次撒哈拉的非洲如何，举例来说，在另外的世纪内将会经历被计画的人类数字的使成五倍。

A new board shaped ozone generator is proposed to efficiently generate ozone. This paper introduces the generator design based on surface discharge theory in the nonuniform electric field.

臭氧是氧气的同素异形体，与常见的消毒剂氯气相比，臭氧的灭菌速度是氯气的600～3000倍，而且，臭氧的高效杀菌灭毒本领和不留二次污染性历来受到人们的青睐。

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。