| 1. | Digital audio power amplifier based on dppc 2006的数字音频功率放大器 |
| 2. | The lb films of dppc were also used to study the growth of calcium oxalate crystals 将磷脂dppc的单分子膜提拉成磷脂lb膜,并用其诱导草酸钙晶体生长。 |
| 3. | It was found that calcium oxalate crystals nucleated on the domain boundaries by afm observation 用afm观察发现,草酸钙晶体最初在磷脂dppc的lb膜上成核。 |
| 4. | Under dppc monolayer , the appearance of com was also different when different additives were added to subphases 膜压为20mn m时,草酸钙晶体呈现出比较规则的六棱柱形晶体。 |
| 5. | It was also indicated that dppc monolayer had distinctly effect on the initial nucleation of com crystals through the examination by tem 在磷脂dppc单分子膜诱导下,草酸钙晶体的形成受膜压和添加物的影响。 |
| 6. | The main works are shown as the below : ( 1 ) . langmuir monolayer of behenic acid and dppc surfactants behenic acid is a classical amphiphile , it has been applied to prepare functional lb films and quantum semiconducting particle films . therefore , it is of essential importance to study behenic acid monolayer at the air / aqueous interface ; at additional , in the different subphase ( h2o cdcl2 ) conditions behaviors of behenic acid monolayers have been studied ; moreover , we study dppc monolayer at the aqueous subphase , stability of dppc at the different surface pressures and speed rates 研究内容如下: ( 1 )二十二酸、 dppc单分子膜成膜性能研究主要研究典型的小分子成膜化合物(二十二酸)在纯水和金属离子cd ~ ( 2 + )两种亚相下分子聚集过程,详细讨论了膜的形成和相变过程,分析了纯水和金属离子cd ~ ( 2 + )两种亚相情况对各状态下膜的静态弹性的影响;同时考查dppc单分子膜相变过程,同时研究了在不同压力处、不同压膜速度条件下对分子膜稳定性的影响。 |
| 7. | ( 2 ) . the cyclic isotherms study of behenic acid and dppc surfactants we investigate the cyclic isotherms of behenic acid and dppc monolayer at different surface pressures , based on the existing theory , we discuss the standard free energy of the system on aggregation of the cyclic isotherms ( 2 )纯水亚相上二十二酸、 dppc循环曲线研究河南大学凝聚态物理专业2001级硕士学位论文摘要二十二酸、 dppc单分子膜循环曲线进行了实验研究,对二十二酸、 dppc在不同压力处单分子膜循环曲线进行系统研究,并在现有一些理论模型基础上对其成膜过程分子聚集状态和热力学特征进行了理论探讨。 |
| 8. | Chondroitin sulfate a ( c4s ) , as a kind of endogenetic urinary macromolecule , not only increased the supersaturation of cac2o4 in solution , but also inhibited the two - dimensional growth and aggregation of com crystals . the growth of calcium oxalate crystals was influenced by surface pressure beneath dppc monolayer film . there were some crystals which have the same appearance as com crystals obtained from pure water system when monolayer surface pressure was hold 1 , 10 and 30 mn / m while those growth at 20 mn / m were perfect orderly induced by dppc monolayer 生物大分子c _ 4s作为一种内源性的尿大分子,它不仅从热力学上提高ca ~ ( 2 + )在尿液中存在的浓度,使体系中cac _ 2o _ 4保持较高的相对过饱和度,降低草酸钙结石成核的可能性;而且在晶体生长时,抑制com晶体晶面的二维生长和晶体聚集。 |
| 9. | The growth of com crystals at stearic acid monolayer was regular and both end of the crystals became sharp angles because stearic acid molecular has negative group . the crystals beneath dppc monolayers were oriented with the elongated hexagonal ( 101 ) face paralleled to the plane of the monolayer and smaller than those from bulk solution ) 01 )晶面与膜平面平行生长,而且,在相同结晶时间里,磷脂dppc单分子膜诱导下的com晶体的粒径比本体溶液中的com晶体粒径要大。 |