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For the Au/TiO2 catalyst reduced at 673 K with an optimal Au mass fraction of 9.2%, the mean particle size of Au was 2 nm and the initial hydrogenation rate was as high as 13.7×10^(-5) mols^(-1)g^(-1), while the maximum yield of crotyl alcohol was 69.9%.

在673K还原条件下制备Au质量分数为9.2%的Au/TiO2催化剂上，Au粒子的平均粒径为2nm，初始加氢速率达到13.7×10^(-5)mols^(-1)g^(-1)，同时巴豆醇最高收率可达69.9%。

The results were found as following:(1) The damage value increases more significantly with the increase in PVF before 30% PVF, beyond which the increasing trend becomes gradually gentle.(2)Keeping the interphase strength and PVF unchanged, the damage increase with increasing moisture concentration in a nearly linear relation.(3)The results generated from the FCC model with consideration of the interphase debonding are in good agreement with the experimental data, meanwhile, the FCC model is also capable of predicting the critical load for the damaged and the undamaged dental composite subject too the 3-point flexural test.4 A 3D-fmite element analysis has been successfully exploited to examine the mechanical behavior of the restoration-tooth structure under the polymerization shrinkage and water sorption. It was found:(1) The low stiffness of the composite has the effect to limit the displacement occurring in the remaining tooth tissue. For lower interphase, the cuspal flexures are litter higher. The high interphase modulus acts as a \'shielding effect\' for stress transfer.

得到如下结论：(1)相同的吸湿性，在30％PVF(颗粒体积分数：Particle volume fraction，PVF)前增加PVF，层间脱胶损伤值显著增加；此后损伤值的增加趋于平缓；(2)保持层间强度和PVF不变，层间脱胶损伤随吸湿率的增加而接近线性增加；(3)FCC(面心立方：Face-centred cubic，FCC)模型层间脱胶损伤的预测结果和实验数据基本吻合；同时此模型可以用于预测牙齿填充材料三点弯曲实验的临界载荷。4、建立理想牙齿修复结构，利用有限元方法研究了同时考虑聚合收缩和吸湿膨胀耦合作用下的填充修复材料和粘结界面层材料性能对牙齿修复结构的力学行为的影响，得到如下结论：(1)低弹性模量的牙齿填充修复材料能限制天然牙组织的位移，但天然牙组织的位移与粘结界面层的弹性模量无关。

Present status and application of isoprene,cyclopentadiene and m-pentadiene in cracking C_5 fraction products were reviewed.

重点介绍了国内外裂解C5分离产物异戊二烯、环戊二烯和间戊二烯利用近况，提出C5综合利用具有很广阔的发展前景和现实意义。

Roundness and cylindricity are two of the most widely used tolerances, because most of workpieces contain round or cylindrical fraction.

然而，到目前为止圆度和圆柱度的评定仍然没有既符合标准定义又具有快速简洁特性的计算方法。

Abstract］Objective: To search for compound with anticancer activity from lipophilic fraction of Daucus carota. Methods: Extraction from D.

核心提示：目的：对胡萝卜脂溶性部位的化学成分进行研究，以期从中分离出具有抗肿瘤活性的单体化合物。

The colloidal solution formed under lower concentration conditions has zero free water and is with large volume fraction, the advantage of which is good deformational ability at low pressure gradient.

在较低的浓度条件下形成的胶体溶液无游离水，颗粒体积分数大，具有形变压差小、形变能力强的优点。

A modified homogeneous flow model was introduced to calculate the flow field in RH degasser,thus getting rid of some earlier methods that are unavailable to be generalized,such as reducing the computation region or presetting the distribution of gas volume fraction.

分别对有、无旋转磁场作用时的RH系统进行了模拟计算。模拟结果表明：流场和脱碳过程与现有文献中实验结果相符合；当旋转磁场作用后，磁感应强度为0.04 T时，初期脱碳速度比无旋流作用时增加了约15%，这是由于旋流增加了系统的搅拌能，提高了脱碳反应速率。

Theenvironmental risk of leachate from landfill with different operation modes depend ontheir accumulation amount rather than their sudden concentrations and fraction.(7)The high SRB metabolism activity and the accumulation of metabolitewere the main reasons of in-situ precipitation phenomenon of Cu~(2+) and Zn~(2+) inlandfill refuse in bioreactor landfill. Heavy metals in bioreactor landfill havemechanism of in-situ immobilization controlling by SRB metabolism. Thepredominant SRB in landfill refuse belongs to Desulfovibrio vulgaris sp.

7生物反应器填埋场中较高的SRB代谢活性及其逐步累积的代谢产物硫化物是填埋垃圾中的Cu~(2+)和Zn~(2+)形成硫化物沉淀而发生重金属原位固定现象主要原因，生物反应器填埋场中重金属存在原位固定的硫酸盐还原菌调控机理，初步从形态判断填埋垃圾中的优势硫酸盐还原菌属普通脱硫弧菌属Desulfovibriovulgaris sp。

Observe the changes of card iac functions,ultrasonography parameters such as left ventricular ejection fraction,left ventricular diastasis end

目的：研究健心益衰汤对充血性心力衰竭的临床疗效及作用机理。方法：将80 例CHF 患者随机分为对照组

Treatment group was administered fluvastatin(40mg/day) and traditional treatment, the controlled traditionally treated only. Measured the left ventricle ejection-fraction, left ventricle diastasis diameter, diastasis interventricular septal thickness 3 months later.

第一阶段，A组予以氟伐他汀加传统抗心力衰竭治疗，B组仅予以常规治疗，3个月后测量患者左室射血分数、左室舒张末期内径和舒张期室间隔厚度；然后两组均继续予以常规治疗1个月。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。