引

In the second chapter, the problem of the optimal inputting rate control for a class of competitive population dynamics system with age-structure is discussed. By means of characteristic line, Gronwall Lemma, Bellman Lemma, adjoint system and so on, the Lipschitz continuity properties of the system in terms of the control variable is certificated, and the necessary condition of the optimal control is obtained.

第二章讨论了一类具有年龄结构的竞争种群系统最优输入率控制问题，综合应用特征线法，Gronwall引理，Bellman引理，共轭系统等知识，证明了系统解关于控制变量的Lipschitz连续性，给出了控制为最优的必要条件。

That is, the search engine does not give well-exhibited to be a Deputy of no particular spelt out in this Web site, a set time for two months and right left time when road, the time, the search engine will often invited to come to your site, but, you're search engine preferablly real, will become an absolutely no right to stand in line.

便是搜寻引挚对于刚刚树立不暂的网站无特别的偏偏佳，一个界订的时光为两个月右左的时光，也便是道，那些光阴，搜索引挚会常常光临您的网站，而且，你正在搜索引挚的排实外将取得一个绝对没有对的排队实。

The improvements included repeating the comparison simultaneously, applying one-base anchored primers instead of two-base anchored ones, elongating the primers to more than 20 bases, using high- stringency PCR condition and increasing the dNTP concentration in PCR.

具 体方法是用单铆钉引物替代双铆钉引物，延长引物长度至20个碱基以上，以提高PCR反应的严谨性及PCR反应中dNTP的浓度，并使用严格的重复实验的方法，最终得以确定差异显示基因片段。

Biomechanics of should joint at the empty out and transition moment: In the instant of leaving of the left foot, the angle between shoulder and hip was 27°, the angle of pull was 150°, the angle of axis between shoulder was -12°; In the instant of touchdown of the right foot, the angle between shoulder and hip was 72°, the angle of pull was 151°, the angle of axis between shoulder was -85°, the speed of left shoulder was 2.43 m/s, the speed of right shoulder was

腾空和过渡阶段肩关节的生物力学指标：左脚离地瞬间肩髋角度为27 ，拉引角度为150 ，肩轴角度为-12 ；右脚着地瞬间肩髋角度为72 ，拉引角度为151 ，肩轴角度为-85 ，左肩速度为2.43m／s、右肩速度为1.37m／s；左脚着地瞬间肩髋角度为58 ，拉引角度为136 ，肩轴角度为19 ，左肩速度为3.49m／s，右肩速度为1.89m／s。

The differences of amplified DNA segments show ed that the red-fleshed sport was related to changes of some genetic substances .The polymorphic segments could be used to forecast the flesh color of grafted s eedlings from the sport scion.

用4种引物S107、S84、S157、AY17分别对芽变系单株及对照进行RAPD扩增，不同树龄、不同砧木的芽变单株与对照间的特异性片段同引物筛选中所得结果一致，可用所得引物对全红芽变系嫁接株的果肉颜色进行早期预测。

Effect of TP on DNA primase-polymerase α complex activity was examined using Liquid Scintillation counter. Results:It showed that IC50 value of TP inhibiting DNA primase-polymerase α complex activity was 20.28 (15.17～ 27.13)μ g/ml. TP could promote DNA primer synthesis but inhibit DNA primer extension.

结果：茶多酚对小鼠肿瘤L2细胞DNA引物酶多聚酶α复合体活性有抑制作用，半数抑制浓度（IC50）值为20.28(15.17～27.13)μg/ml；对DNA引物合成有促进作用；对引物延长亦有明显抑制作用，其IC50值为36.43μg/ml。

Total RNA were extracted from the gonads of two types of Tilapias.The cDNA copies of differential expressed mRNA species were amplified by DD-PCR using an anchored primer 5' dTuN, combined with two of arbitrary' primers and one long primer, respectively.

本文从罗非鱼的性腺提取的总RNA为模板，用5'dT_11N锚定引物和两个随机引物以及一个长引物组合进行DDRT-PCR扩增。

The exhaust ducting is cooled by four air inlets around the jet pipe.

从 APU 出来的引气通过一个引气阀门被提供到增压系统，引气可以被用来控制两个空调组件中的任一个，也可用于发动机起动。

The major clinical manifestations of the anastomotic leakage include intermittent or persistent fever, paralytic ileus and discharge of faecal material in the drainage tube.

间歇性或持续性发热、麻痹性肠梗阻、引流管中有粪质样液体是吻合口漏的主要表现，经引流管局部冲洗引流辅以TPN和横结肠失功性造漏是治疗吻合口漏的主要方法。

The main results are as below:1 we get 17 primers of amplified and polymorphic bands from 700 10 bp radom primers.

再用这17条引物对39个橡胶树品种进行扩增，得到扩增条带100条，不同引物扩增的DNA带数在4～10条之间，平均每个引物扩增5.88条带。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。