带谱

The simulation considering the competition of the band filling effect and band-gap renormalization effect is in a good agreement with our experimental results.

理论上，考虑带填充效应和带隙重整化效应的竞争，模拟得到与实验谱线相符合的结果。

According to the H NMRstudy, it was found that the protons on the cyclopentadienyl ring of 〓 were not splitted, but when one proton on the cyclopentadienylring was substituted by methyl, that is in〓 complexes, thefour protons on the ring were splitted into four groups,the 〓 between the onesignal and the others is large, the total splitting is over 2ppm. The splittings werealso affected by the halides linked with the titanium, they increase according to theorder of CI, Br, I. By the study of the 〓 Sn NMR, it is found that the chemicalshifts of 〓 are present in low field. It is assume that the large space strain causesthe angles of the tin linked with ligands deviate from the normal tetrahedral anglesresults low field shift for 〓Sn. And by MS study,there were no molecular ions for 〓 complexes in the spectra. However, for 〓 when X=CI,Br,NCO and Ar is tolyl or phenyl group,there were molecular ions,but theirabundances were very small,and no that for the iodide was found.

钛上的卤素对茂环氢的裂分也有影响，依〓，Br，I顺序，卤素对茂环氢的裂分依次加大；通过对〓的研究发现，以上这些化合物〓的化学位移都出现在低场，认为大的空间张力造成的锡的键角偏离正常的锡的四面体键角是造成〓化学位移出现在低场的原因；对这些化合物质谱的研究发现，〓系列化合物得不到分子离子峰，而〓系列的化合物，当X=〓，NCO和苯环上不带取代基或只带甲基时，则出现分子离子峰，但丰度很低，而相应的碘化物和其它化合物则没出现分子离子峰。

Fourteen wampee cultivars collected from Guangdong and Guangxi were used for RAPD analysis in this study. 16 primers selected from 150 random primers were used to amplify 87 DNA fragments and 57 bands (54.0%) showed polymorphisms.

摘 要：对14个黄皮品种进行 RAPD 分析，从150个随机引物中筛选出16个能在种质间表现出多态性的引物，共扩增出 87 条谱带，其中多态性带47条，多态性比例为54.0%。

It caused aggregation of purple membrane fragments at very low concentration. This effect might be attributed to its positive charges because cationic surfactant DTAB acted the same. On the other hand, melittin seemed to have behavior similar to CHAPS which has a rigid cholane ring,both had little effect on the conformation of retinal chromporphores.In consideration of the two-dimensional crystalline structure of purple membrane,melittin may form a rigid conformation such as α-helix on the surface of the membrane.

通过与三种在结构和电荷上不同的表面活性剂与紫膜的作用相比较，可以年出蜂毒作为带正电荷的分子与同样带正电的表面活性剂DTAB在引起紫膜凝聚方面表现相同；但在对紫膜可见光区的吸收光谱和圆二色谱的影响上却与具有刚性结构的CHAPS相似，表明蜂毒可在紫膜表面以一种刚性较大的构象存在，不能进入膜蛋白流水区的深层。

The fingerprints of 10 species including 27 accessions in genus Corchorus were investigated with the technique of RAPD.Twenty-five primers were screened from 119 random primers,and a total of 329 DNA fragments were amplified ranging from 0.3～3.0 kb,253 (87.78%),which were polymorphic.

采用RAPD标记构建了黄麻属植物10个种27份材料的指纹图谱，从119个随机引物中筛选出清晰且多态性高的25个引物，共扩增出329条DNA片段，分子量在0.3～3.0 kb之间，其中294条谱带具有遗传多态性，多态比率为89.36％，平均每个引物扩增出13.16条带。

The fingerprints of 10 species including 27 accessions in genus Corchorus were investigated with the technique of RAPD. Twenty-five primers were screened from 119 random primers, and a total of 329 DNA fragments were mplified ranging from 0.3~3.0 kb, 253 (87.78%), which were polymorphic.

采用RAPD标记构建了黄麻属植物10个种27份材料的指纹图谱，从119个随机引物中筛选出清晰且多态性高的25个引物，共扩增出329条DNA片段，分子量在0.3～3.0 kb之间，其中294条谱带具有遗传多态性，多态比率为89.36％，平均每个引物扩增出13.16条带。

In the preparation of the material, VitC was added, and the protective effect of antioxydant was tested by investigating the changes of the crystallin during the cataractogenesis which included the content, component of polypeptide and the conformation of the secondary structure of the protein.

结果在VitC的保护作用下晶状体蛋白的低分子量蛋白的含量明显增加，PAGE电泳中出现多条分子量较低的蛋白条带，但SDS-PAGE的泳带无明显改变，CD谱显示α-螺旋增加和β-折叠减少。

The masses of N and Δ baryons are calculated based on the confining potential amended or not in chiral SU (3) quark model and three-body theory method. The results shown that amendment can improve some values, but the improvement is still not satisfactory and the quark model can described octet and decuplet well but excited baryons.

利用手征SU(3)夸克模型和三体理论方法，在考虑禁闭势带修正项和不带修正项两种情况下，计算了N和Δ重子质量。N和Δ重子谱的计算结果表明，增加修正项能改善一些计算值，但改善程度仍然不是很令人满意；SU(3)夸克模型能够很好描述重子的八重态和十重态，但不能很好地描述激发态的重子。

Choose 37 ACGM primers to PCR amplification from 55 gramineae germ plasm, 569 bands are obtained, and all of the bands are polymorphism.

利用37对ACGM引物对55份禾本科种质进行PCR扩增，共扩增出569条谱带，皆为多态性条带。

By the analysis of SDS-PAGE electrophoresis, CXJZ95-198 secrets exocellular proteins bands in media of glucose, mannose ,xylan, mannosan and pectin respective were 32 bands, 33 bands,35 bands, 36 bands and 21 bands respectively .

在葡萄糖、甘露糖、木聚糖、魔芋粉及果胶五种不同碳源培养基中的发酵液在SDS-PAGE电泳中分别分泌出32条，33条，35条，36条和21条蛋白带；多数可比较的蛋白质电泳谱带的颜色深浅呈魔芋粉＞甘露糖＞木聚糖＞葡萄糖＞果胶的趋势。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。