查询词典 PS

In study of ICF, polystyrene hollow micro-spheres are one of the most important targets because of its low density and atomic number.

在ICF 靶丸研究中，PS空心微球是主要的靶型之一，由于PS 靶具有低密度、低原子序数，可以降低辐射驱动内爆实验过程中燃料预热及流体力学不稳定性，提高实验效率，并且有利于实验过程中诊断，所以PS 靶愈来愈受到重视并很快得以发展。

In the single crystal of C60 with a FCC structure,positron mainly appears outside the C60 molecule.The main annihilation space is the interspace between molecules.The calculated positron bulk lifetime in C60 is 352ps, which agrees with experiment value of 356ps in literature.In carbon nanotube bundles with different dimeters,as the diameter of carbon nanotubes increases,the main space where positron appears changes from the interspace of carbon tubes to the space inside carbon tubes,the radio between positron annihilation with valence eletrons and core eletrons becomes larger,the positron bulk lifetime in carbon nanotube increase rapidly first and come to be a constant at the end.The calculated positron lifetime of carbon nanotube with a dimeter of 0.8～1.6ns is 332～470ps,which agrees with the experiment value of 394ps.Positron annihilation has been studied in widly used compound semiconductors.

计算结果表明：在片层结构的石墨晶体中，正电子主要在石墨层间的空隙中湮没，计算出的石墨中的正电子寿命为208 pS，与文献中的实验结果215 ps符合很好；在金刚石单晶中，正电子主要在碳原子之间的空隙中存在并发生湮没，计算出的金刚石中的正电子寿命为115 ps，文献中的实验结果110 ps左右符合；在面心立方结构的C60晶体中，正电子主要在C60分子球壳内外侧及分子之间存在，C60球形分子中心正电子分布很少，正电子的湮没区域集中在C60分子之间的空隙区域，计算出的C60中的正电子寿命为352 ps与文献中的实验结果356ps相符合；对于不同管径碳米管束中的正电子分布，随着碳纳米管直径的增加，碳纳米管束中的正电子由主要在碳纳米管管间的区域出现转变为主要在碳纳米管管内中心的区域出现：碳纳米管束中的正电子与碳原子的价电子的湮没概率变得越来越大，与核心电子的湮没概率变得越来越小；碳纳米管束中正电子的湮没寿命先迅速增大，而后趋于一定值。

A method for the determination of BSA based on the quenching of BSA fluorescence on adding PS and a method for the determination of PS based on the enhancement of PS on adding BSA were developed. The experimental data were processed by the Stem-Volmer equation and Lineweaver-Burk double reciprocal equation.

在不同的pH条件下，酚藏花红与蛋白质的反应导致了蛋白质荧光猝灭及酚藏花红的荧光增强，其荧光猝灭值与酚藏花红的浓度成正比，可用于酚藏花红的分析测定；而酚藏花红荧光增强值与蛋白质浓度成正比，又可用于蛋白质的分析测定。

The results indicate that there are strong dipole or ionic pairs interactions between carboxylic acid or anhydride and dimethylamino groups in reactive blends, so reactive compatibilizers are formed at the interphase, which can reduce the interfacial tension and improve interfacial adhesion between the component polymers, meanwhile the morphologies of the reactive blends become more fine and uniform, the dispersed domain size decreases remarkable.

研究结果表明：在PS/PE-g-MAH/St-Co-DMA和PS/EPDM-g-DMA/St-Co-MAH反应性共混体系中，反应性聚合物所含的酸酐基团与叔胺基团存在离子对间的相互作用；在PS/Surlyn/St-Co-DMA和PS/EPDM/Surlyn/St-Co-DMA反应性共混体系中，反应性聚合物所含的羧酸基团与叔胺基团间存在偶极相互作用。

Dielectric measurements were carried out for polystyrene/polypyrrole composite membranes immersed in dilute aqueous electrolyte solution over a frequency range from 40 Hz to 11 MHz, some differential dielectric relaxation phenomena were observed: pure PS membrane and the PS membrane interfused with PPy showed different modes of dielectric spectra, one relaxation for pure PS membrane and two relaxations for the PS membrane interfused with PPy, respectively.

在40 Hz～11 MHz频率范围测量了聚苯乙烯膜以及混入聚吡咯粒子的聚苯乙烯膜和电解质溶液构成的体系的介电谱，发现了特异的弛豫现象：纯的和掺入导电性聚吡咯后的聚苯乙烯膜分别显示出单一弛豫和双弛豫的不同模式的介电谱。

The results showed that the maximum photochemical efficiency, quantum efficiency of PSII photochemistry, the electronic transfer rate, the photochemical quenching of the grafted seedling were lower than those of the own-root seedling in the 20 days after planting.

定植后20d，嫁接苗的最大光化学效率、PSⅡ光合电子传递量子效率、光合电子传递速率、光化学猝灭系数低于自根苗；定植后30、45、60d，嫁接苗Fv/Fm、ΦPSⅡ、ETR、qP及开放PSⅡ中心激发能捕获效率高于对照，而非光化学猝灭系数低于对照。20d时，嫁接苗吸收的光能用于光化学反应的能量比例低于对照；但30d后，θPSⅡ显著升高，45d时超过70%，而自根苗只有60%。

G/mL. These micelles consist of a PS core surrounded by a watersoluble PAA corona.

利用芘荧光探针研究了两种PS-b-PAA嵌段共聚物在水溶液中的自组装行为，并考察了对退火温度的影响。

PS if you use or like this mod or any other mod from these forums, please remember to Rep the Brig and KillZoneGB please.

PS如果您使用或喜欢这个mod或任何这些论坛的其他模的，请记得代表处的布里格和KillZoneGB请。

It is equivalent to executing this command ps aux.

相当于执行如下的命令：ps aux。

In order to meet the imminent implementation of new EU environmental regulations, the substrate of high-quality imported PVC material and PET, PS, PP, PC, such as environmental protection material, ink imported Apollo ink, magnetic stripe magnetic imported German Chur.

为适应欧盟即将实施的新的环保条例，基片采用进口的高品质PVC材料和PET、PS、PP、PC等环保材料，油墨采用进口阿波罗油墨、磁条采用进口德国库尔磁。

The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.

此刻阴唇已经几乎完全的缝在一起了，排除多余淤血体液的管子和Foley导管从顶端冒出来。

To get the business done, I suggest we split the difference in price.

为了做成这笔生意，我建议我们在价格上大家各让一半。