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Whenp≠0 and q is an n -th primitive root of unity,H has an n~4 -dimensionalquotient algebra H_n isomorphic to DA_n(q~(-1),which is the Drinfeldquantum double of n~2 -dimensional Taft algebra Anq~(-1. This distinguishedproperty draws people's interesting on H .

由于当p≠0,q为n次本原单位根时,H有一个n~4 -维商代数H_n同构于n~2 -维Taft代数A_nq~(-1的Drinfeld quantum double DA_n(q~(-1),这样一个很好的性质使人们对H表现出极大的兴趣。

Culture tender leaves in culture medium of MS+2,4-D1.5mg/L+30g/L suger+0.7% agar pH5.8 for 20 days in darkness at 25℃, and then subculture to induced Ⅱ-type calli. Use forceps cutting the tissue to nubble with 2mm2, and put the tissue into Agrodacterium tumefaciens LBA4404 liquid supplemented with AS 100mg/L,then, co-culture 3 days, resume 7 days in MS+2,4-D1.5mg/L+30g/L suger+500mg/L cef, take to MS+2,4-D1.5mg/L+30g/L suger+100mg/L cef+10.0mg/L kanamycin culture 20 days in darkness. After that to make it polarize in MS+30g/L suger+100mg/L cef+10.0mg/L km. The percentage of km resistant callus was reached max after infection for 45 min, the average is 29.66%. Simultaneity, tender leave callus are infected 5 min by A. tumefaciens liquid in different negative pressure, and kept on 15 min in Agrodacterium tumefaciens liquid without negative pressure. Then screen out resistant callus and obtain transgenic plants. When the negative pressure is -0.05MP the percentage of km resistant callus was reached max, the average rate is 37.5%.

将心叶接种于MS+2.4-D1.5mg/L+30g/L 蔗糖,琼脂0.7%,pH5.8 培养基中25℃暗培养20d 后继代一次,诱导产生Ⅱ型胚性愈伤组织,用镊子将其夹碎成2mm2大小的小块,置入添加100mg/L AS 的根癌农杆菌LBA4404 菌液中,侵染时间为45min,共培养3 天后,转入MS+2.4-D1.5mg/L+30g/L 蔗糖+500mg/L Cef 培养基中恢复7天,再转入MS+2.4-D1.5mg/L+30g/L 蔗糖+100mg/L Cef+10.0mg/L Km 中,遮光培养20d后,置入其MS+30g/L 蔗糖+100mg/L Cef+10.0mg/L Km 分化,卡那霉素抗性愈伤组织获得率在侵染45min 时达到最大值平均为29.66%;同时以甘蔗心叶愈伤组织材料,通过循环水式真空泵,产生负压,设定不同的负压值,在农杆菌菌液中感染5min 后,在负压条件下继续侵染15min 后,筛选出抗性愈伤组织并获得转化植株,其中在负压为-0.05 时转化率达到最大值,其卡那霉素抗性愈伤组织获得率平均为37.5%。

In this paper,a new method for estimating the global optimum value in a global optimization problem is proposed .

给出了一种全局最优化问题的全局最优值估计的新方法;该方法通过求一个非线性方程的根使目标函数值逐步减小,因此该方法具有下降算法特征。

It also states that students "should know how to use quadratic functions to solve extremum problems in everyday life". It seems to me that befe all these, students should be properly taught the technique of completing the square (which underlies the solution of extremum problems of any kind) and the quadratic formula (which would then give *exact* solutions of quadratic equations).

我认为,在学习这些之前,应该适当地教给学生配平方的技巧(它是解决任何最值问题的基础),以及二次求根公式(它能给出二次方程的精确解)。

We break through the restriction of Diophantine condition and obtain results of analytic solutions in the case of unit root α and the case that given functions have a regular singular point.

在本章我们突破了Diophantine条件的限制,在α是单位根的情形以及已知函数有正则奇点的情形,给出了解析解结果。

This paper is to study the changes of the muscle strength after the selective posterior rhizotomy and the relationship between the changes and the quantities of rhizotomy and to find out the histochemistric and structural proof.

本文试图从术后肌力变化测试及肌肉的组织结构变化方面,对此进行进一步的研究,以期明确选择性脊神经后根切断术是否会影响肌力及其与切断比例的关系,找出其组化及组织结构证据。

Zheng came to Nanning mayor gang road's computer welfare lotteries 45013003rd bookie to purchase the lottery ticket in the afternoon, she has purchased first 3D and the double chromosphere game's lottery ticket, afterward only then selected and purchased blows the happy lottery ticket.

郑女士第一次先是要了10张"海底寻宝"彩票,刮完时中了4元的小奖,随后她又继续要了5张该玩法的彩票,没想到当刮到第三张时就刮出了"三根金条",也就是说,郑女士中得了该游戏玩法的二等奖,获得奖金9998元。

Majority among 39 strains can renodulated on the hosts and on Robinia pseudoacacia ___a legume.

项目分离获得的39株菌株中,多数菌株能回接宿主结瘤,多数回接结瘤的菌株在剌槐的根上也表现出侵染致瘤能力。

PDLSCs and SCAP grew very well on the scaffold of HA/TCP in vitro. Conclusion:The miniature pig PDLSCs and SCAP, which can be cultured successfully in vitro, may be useful cell sources for the regeneration of periodontal and tooth tissues.

小型猪牙周膜干细胞及根尖牙乳头干细胞可被成功的分离培养,在体外表现出良好的生长状态,有望为牙周组织再生和生物牙根再生提供有用的细胞来源。

Germany's national government will pony up half of the short-term loan, while the German states of Thuringia, Rhineland-Palatinate, Hesse, and North Rhine-Westphalia will combine for the other half.

德国的国民政府将腰包里掏出一半的短期贷款,而德国图林根州,莱茵-巴拉丁,黑森州和北威州将结合的另一半。

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Fancy gold-plated dangling earrings with facetted White Opal crystals.

花式镀金悬垂耳环与facetted白欧泊水晶。

This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.

本文选取石家庄市初中生物教师作为研究对象,运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查,调查结果发现,石家庄市初中生物教师这一群体普遍存在职业倦怠,情感枯竭程度偏高,成就感偏低,去个性化程度最为严重。

In measurements of a day,generallyspeaking,the photosynthesis of birch in mesophytic habitat is better than that in xerophytichabitat(peak values are 12.8,10.33μmolCO2m-2s-1 respectively);that of sexual birch inmesophytic habitat is better than that of clone birch(peak values are 9.87,6.71μmolCO2m-2s-1respectively);that of young tree is better than that of seedling(peak values are12.37,10.05μmolCO2m-2s-1 respectively).

在一天中的各个时刻,总体说来,中生生境生长的白桦光合作用超过旱生生境生长的白桦光合作用(净光合速率峰值分别为12.8、10.33μmolCO2m-2s-1);白桦幼树的光合作用超过白桦幼苗(净光合速率峰值分别为12.37、10.05μmolCO2m-2s-1);中生生境有性白桦的光合作用超过无性白桦的光合作用(净光合速率峰值分别为9.87μmolCO2m-2s-1、6.71μmolCO2m-2s-1)。