带谱

Thirdly, a new type base isolation system, i. e., slide-limited friction base isolation system is presented in this paper. Based on this system, harmonic and subharmonic periodic response of S-LF subjected to harmonic motion is investigated by using Floquet theory. Dynamic response of sliding structure subjected to earthquake ground motion is calculated with a precise high order direct integration method, and the numerical results are presented in terms of maximum acceleration response spectra of supcrstructure and maximum sliding displacement response spectrum. By comparison with isolating effects of pure-friction base isolation system and resilient-friction base isolation system , it shows that the isolating characteristic of S-LF is superior to P-F and R-FBI. Through analyzing an engineering example, it is observed that the maximum inter-storey shear force and absolute acceleration of sliding structure to earthquake ground motion are very different from those of traditional structures.

提出了一种新型基础隔震模型，即带限位装置的摩擦隔震体系；基于此隔震模型，利用Floquet理论研究地面谐运动下S-LF结构的运动特性；并利用高精度的精细时程积分法，通过对地震作用下S-LF动力响应的计算，绘制了上部结构最大加速度反应谱和基底最大滑移量反应谱，并研究了各种结构参数对隔震的影响；通过与恢复力摩擦隔震系统和纯摩擦力滑移隔震系统的比较表明，S-LF的隔震性能优于P-F和R-FBI；对计算实例的分析发现，地震作用下S-LF结构的层间最大剪力和最大绝对加速度反应分布较一般传统结构有很大区别。

Dynamic response of sliding structure subjected to earthquake ground motion is calculated with a precise high order direct integration method, and the numerical results are presented in terms of maximum acceleration response spectra of supcrstructure and maximum sliding displacement response spectrum. By comparison with isolating effects of pure-friction base isolation system and resilient-friction base isolation system , it shows that the isolating characteristic of S-LF is superior to P-F and R-FBI. Through analyzing an engineering example, it is observed that the maximum inter-storey shear force and absolute acceleration of sliding structure to earthquake ground motion are very different from those of traditional structures.

提出了一种新型基础隔震模型，即带限位装置的摩擦隔震体系；基于此隔震模型，利用Floquet理论研究地面谐运动下S-LF结构的运动特性；并利用高精度的精细时程积分法，通过对地震作用下S-LF动力响应的计算，绘制了上部结构最大加速度反应谱和基底最大滑移量反应谱，并研究了各种结构参数对隔震的影响；通过与恢复力摩擦隔震系统和纯摩擦力滑移隔震系统的比较表明，S-LF的隔震性能优于P-F和R-FBI；对计算实例的分析发现，地震作用下S-LF结构的层间最大剪力和最大绝对加速度反应分布较一般传统结构有很大区别。

We also give some conservation and convergence analysis for the Dirac equation and the Korteweg-de Vries equation.

在第七章中，我们建立了全直线上不带权的Legendre有理谱逼近，并以Dirac方程作为实例，证明了谱格式的守恒性和收敛性。数值结果表明了算法是有效的。

Effective charge-transfer excitation and the energy transfer from the host and Gd3+ to Eu3+ were observed.

激发谱包含三部分，即电荷转移带、Eu3+的4f内壳层电子跃迁和Gd3+的激发谱。

From our numerical results we also find thatthere exist many sharp-edged subbands and gaps,which form plentiful self-similar structures.

计算还发现，透射谱中存在边界清晰的子带和带隙，子带结构呈现丰富的自相似性。

The RAPD was used to study the genetic diversity of 19 KinXin series potato cultivars. The result showed that 52 RAPD bands were amplified using 7 primer, among them 43 bands were polymorphic, and 4~9 bands were amplified in each lane. The RAPD analysis indicated that the genetic distance of 19 potato cultivars was between 0.17~0.72, average value was 0.39. When all of the polymorphic bands were analysed by cluster analysis, 19 potato cultivars were classified into 3 groups. The analysis showed that there existed close sibship among the majority of potato cultivars, and the genetic distance between the minority cultivars and the others is longer, which indicate that the genetic basis of KeXin series potato cultivars is wide.

利用RAPD标记技术对19份克新系列马铃薯品种进行了遗传多样性分析，分别提取19份马铃薯品种的DNA，进行随机引物多态性扩增，从1000条随机引物中初步筛选出7条有多态性的引物进行详细研究，每条RAPD引物扩增出4~9条带，共获得52条带，其中多态性条带为43条；19份马铃薯品种的遗传距离介于0.17~0.72之间，平均值为0.39，平均遗传距离介于0.31~0.51之间；聚类分析结果在GS=0.53处可将克新系列马铃薯品种划分为三类，聚类结果与系谱分析基本相符，同时也说明克新系列马铃薯的遗传基础有所拓宽。

Five polymorphic primers with good, clear bands were got, screening fromseventy-five ISSR primers. These five pairs of primers were used to amplificaterespectively the genomic DNA of 66 different Pterocarya stenoptera individuals and atotal of 45 bands were amplified with 43 polymorphic bands and percentage ofpolymorphic bands 95.6%.

2从75条ISSR引物中筛选出5条多态性好、谱带清晰的引物，用这5条引物对66个枫杨叶样的基因组DNA进行了PCR扩增，共得到45条带，其中多态性带43条，多态性百分率为95.6％。

The results showed that five bands including POD-1, POD-2, POD-3, POD-4 and POD-5 were detected in the gel of POD as well as EST-1, EST-2, EST-3, EST4 and EST-5 for EST. POD-3 and POD-4 were common in all the tissues, but most intensive in F. tartaricum. POD-2 was only discovered in the leaves of F. cymosum and caudex of F. cymosum 1. Although there was some difference between the location, POD-2 appeared in the caudexes of three buckwheat and root of F. tartaricum. POD-5 was detected in all leaves and caudx of F.

结果显示，POD和EST都检测到5条谱带，包括POD-1，POD-2，POD-3，POD-4及POD-5，其中POD-3及POD-4在所有组织中都存在，但在苦荞麦1号中的带最强；POD-1只在金荞麦叶片及金荞麦1号茎中出现；POD-2在茎组织及苦荞麦1号根中存在，但在金荞麦及苦荞麦中的位置不同；POD-5存在于叶片及苦荞麦1号茎中，在苦荞麦的带较强。

Comparing with the band gaps of bulk GaAs under varioustemperatures,the strain factor and conduction band offset Qc for quantumwell have been found to be almost independent of the temperature.

实验得到光伏谱各跃迁峰能量随温度的变化，通过与GaAs体材料带隙的温度关系的比较，表明量子阱中的应变、导带带阶因子Qc与温度基本无关。

In cluster group analysis, the four kinds of color-flowered were divided into 2 styles; at the first, the red color and red-white color were grouped together, then they grouped with purple color into one cluster and the white color was single.

共筛选出12个特异引物，扩增出84条带，具有特异性的谱带为28条，占总带数的33%，在聚类图分析中，把4种花色一串红划分为两大类：首先是红色和红白双色聚为一类，然后和紫色聚在一起，白色单独为一类。

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。