较大的

The characteristics of pentacene/perylene derivatives based organic solar cells are investigated in this thesis Donor and acceptor layers are pentacene and N N'-dioctyl-3 4 9 10-perylenetetracarboxylic diimide (PTCDI-2~13C) respectively Twelve organic solar cells with pentacene/PTCDI-2~13C heterojunctions were fabricated to study the influence of various alkylic perylene derivatives on the power conversion efficiency Under the sunlight simulator with AM1 5G filter and 100 mW/cm2 the solar cell of pentacene/PTCDI-7C heterojunction with cathode of Ag/Al bilayer has the best performance among the devices with pentacene/PTCDI-2~13C heterojunctions In PL spectrum analyses the pentacene/PTCDI-7C film had lower recombination rate than the other pentacene/PTCDI-2~13C films; therefore more excitons could reach the P/N junction and enhance short-circuit current Furthermore the PTCDI-7C film grown on the surface of penatcene was more matched than other PTCDI films analyzed by the PL peak shifts of 10 nm and 45 nm thick PTCDI-2~13C and images of atomic force microscope More lattice match between the films of pentacene and PTCDI resulted in fewer defects in P/N junction and more carries can reach electrodes Accordingly the power conversion efficiency approach 2% was obtained from the solar cell with the active layer of pentacene/PTCDI-7C

本研究探讨以五环素/骈苯衍生物异质接面太阳能电池之特性，利用pentacene作为电子施体有机材料，PTCDI -2C~13C作为电子受体有机材料，制作出异质接面为pentacene/ PTCDI-2C ~13C等12种有机太阳能电池，比较不同碳数的骈苯衍生物对於有机太阳能电池之光电转换效率之影响。在AM1 5G、100 mW/cm2的模拟太阳光下，以pentacene/PTCDI-7C异质接面太阳能电池具有短路电流9 882 mA/cm2、开路电压0 376 V、填充因数0 523及光电转换效率达1 945%，皆比其他pentacene/PTCDI-2C ~13C异质接面太阳能电池来的大。由薄膜分析可知PTCDI-7C在这12种太阳能电池中具有较低的电子电洞复合发光效率，可以让较多激子到达异质接面进行电荷分离，减少电子电洞对复合发光的机率；此外，由光激发萤光光谱之峰值位移配合原子力显微镜表面结构图，可以得知当PTCDI-7C成长在pentacene上时会顺著pentacene的结构成长薄膜，故较无缺陷产生在P/N接面处；而在其他结构下则无此现象产生，致使在pentacene/PTCDI-7C薄膜中的载子有较大的机会可以移动至电极，使光电流提高，进而使光电转换效率提高。

The strong infraction between cellulous and casein exists in the blendmembrane. The membranes with various pore size were successfully prepared bycoagulating the mixture solution of cellulose cuoxam and PEG as pore former.

在膜形成过程，较低分子量的PEG(PEG400，PEG2000)具有较高的扩散速度和碰撞频率而易形成较大的&二次粒子&，导致形成较大的孔尺寸，其孔径约为PEG分子线团直径的二倍。

The circinal cavities were found in calcium alginate beads and the cylinder holes were observed in zinc alginate beads from the SEM,which indicated that the volume of fraction of zinc alginate polymer was relatively bigger and the zinc alginate polymer chain was more rigid than that of calcium alginate .

凝胶的SEM照片可见，海藻酸钙的冷冻干燥颗粒内为较大的圆孔，海藻酸锌凝胶内为较小的长孔，表明海藻酸锌高分子链在凝胶颗粒中的体积分率相对较大同时刚性较强；卵清蛋白从海藻酸凝胶颗粒中释放的试验结果表明，由于上述海藻酸锌凝胶的特性，导致海藻酸锌对卵清蛋白扩散阻滞作用相对较强；根据试验数据计算得卵清蛋白在海藻酸钙、海藻酸锌凝胶颗粒中的扩散系数分别为1.19×10-7、0.07×10-7cm2/s，利用阻滞模型计算得海藻酸锌高分子链在凝胶颗粒中体积分率约为海藻酸钙高分子链在凝胶颗粒中体积分率的1.7倍。

Suspensorily joined structure has the virtue that the construction progress is normally fast and does not hinder the traffic underbridge because Travelling Carriage is not used,but requiring comparatively large construction plant, high complexity in seam assembling, lower structural integrity compared to the suspensorilyplaced are its faults.

预应力混凝土T型刚构加挂梁结构是公路桥梁常用的一种桥梁结构型式，这种桥型根据施工方法的不同可分为悬浇和悬拼，悬浇结构需采用挂篮施工，优点是结构无干接缝，整体性好，刚度大，施工占用场地少，缺点是施工期间挂篮将影响桥下的通航通车，施工周期长；悬拼结构的优点是无需采用挂篮施工施工进度快，对桥下的通航通车影响较小，缺点是需占用较大的施工预制场地，拼装接缝处理难度大，结构整体性较悬浇差。

The phrase remits the big exaltation that the quantity compares, reading the level to also have the bigger progress, the speed that overdoes the industry also had the bigger exaltation.

词汇量有了较的大的提高，阅读水平也有了较大的进步，做作业的速度也有了较大的提高。

The phrase remits the big exaltation that the quantity compares, reading the level to also have the bigger progress, the speed that overdoes the industry also had the bigger exaltation.I

词汇量有了较的大的提高，阅读水平也有了较大的进步，做作业的速度也有了较大的提高。我非常高兴，要谢谢老师的鼓励和支持。

We present the case of an 11y/o girl with skeletal Class II but high mandibular plane angle, severe crowding, rotated upper first molars, and Class II dental malocclusion. Four first bicuspids extraction with a fixed appliance orthodontic treatment was undertaken.

最常被用来改正上颚大臼齿的去旋转装置就是跨颚弧线(transpalatal arch， TPA)，但是由於该装置作用范围较小对於不当旋转较大的上颚大臼齿将不易置入，且会产生过大之施力与力矩。

The SBA-15-supported vanadium oxide catalyst has the highest selectivity for propylene because of its larger pore diameter and higher surface area.

SBA-15负载钒氧化物催化剂因具有较大的比表面积和较大的孔径，不仅具有较高的丙烷氧化脱氢催化活性，而且具有较高的丙烯选择性。

The results showed that significant difference was observed among all genotypes for AWRC, which was also significantly affected by environments. Ningmai 9 and Wanmai 48 were the best for general combining ability of AWRC and could significantly reduce AWRC in their crossing progeny. Ningmai 9 and Wanmai 48 might be used as the best parents in soft wheat breeding program.

结果表明，碱水保持力在杂交组合间存在显著差异，且受环境条件的影响较大。6个亲本中，宁麦9号和皖麦48的一般配合力较好，均表现为较大的负向效应，能极显著地降低杂种后代的碱水保持力，在优质软麦育种中利用价值较高。

For drug substances with limited aqueous solubility (e.g., griseofulvin,nitrofurantoin), particle size can have a large effect on the behavior of the drugproduct, and significant differences in particle size may also affect toxicity.

对于有限的水溶性的原料药（如，灰黄霉素，呋喃妥因），粒度可能对制剂的性能有较大的影响，粒度的较大变化也可能会产生较大的毒性。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。