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Now there are some special algorithms such as Genetic Algorithm, Neural Network and Simulated Annealing Algorithms are effective ways to solve NP-complete problem. However, in the case of larger scale, especially in the studying of strong vertex-distinguishing total coloring for complete graph, they will show some of the inevitable shortcomings.

现已有一些经典算法如遗传算法、神经网络、模拟退火算法等是求解这类NP完全问题的有效方法,但在规模增大的情况下,特别是在完全图的点可区别强全染色的应用中,它们会表现出一些不可避免的缺陷。

It can decompound omethoate with high efficiency and even survive under 3g/L omethoate. The degradation was related to the trend of the growth of the strain dynamically.

通过对NWB-36有机磷农药降解特性的研究,结果表明,该菌对有机磷农药的降解具有遗传稳定性、广谱性和高效性,可耐受3g/L的氧化乐果,降解呈现动态变化,与菌体的生长趋势呈现一定的相关性。

2 STR-PCR We analysed the results of STR with the silver dye in the beginning. The silver dye of STR analysis on a sporadic DMD family shows the band confirmation is subjective by eyeballing. It can not detect the small repeats and the size of polymorphic fragments. For limitation of the silver dye, we analysed the band size of STR with the SAGAGT Genotyping System. Primer are designed according to the nucleotide sequence of five STR markers (located in 5' terminus and intron 44, 45, 49, 50) of dystrophin gene. The 5' end of the forward primer are attached a M13 tailed primer which conjugated to the infrared flourescent dye.

根据dystrophin基因5个多态位点(44、45、49和50号内含子以及5'端启动子区的序列)设计引物,在这些STR的上游引物5'端加一可被红外线荧光物质IRDye700识别标记的M13fw的尾:CAC GACGTT GTA AAA CGA C 通过PCR扩增出重复序列本身,经高分辨率的变性聚丙烯酰胺凝胶电泳后,利用红外激光遗传分析系统及SAGA〓基因分型软件对凝胶上的扩增产物及内标的位置,进行扫描分析,确定产物片段的大小。

For our purpose the argument remains good whether we admit or deny the inheritability of acquired characteristics, our point being that in either case the process is necessarily a slow one, though it is plainly more rapid if the hypothesis be true.

无论我们是否承认因用进废退而后天获得的性状的可遗传性,上述论断都是正确的,且该过程是缓慢的,但是如果后天获得的性状可以遗传 [4],那么这个过程将会更快一些。

To the accuracy and the interpretability of fuzzy model in complex systems modeling, a novel modeling method is presented by combining the characteristics of PNC2 clustering with the genetic algorithm.

针对在复杂系统的模糊建模中,模型的精确度和可解释性很难同时得到满足的问题,利用PNC2聚类算法和遗传算法各自的特点,提出了一种新的建模方法。

Due to clinical variability and/or potential emergence of genetic reversion with hematopoietic somatic mosaicism, a straightforward Fanconi anemia diagnosis can be difficult to make, and diagnostic strategies combining different assays in addition to classical breakage tests in blood may be needed.

由于临床变异和/或潜在造血细胞嵌合体遗传回复变异的出现,一种简单的范可尼贫血的诊断将会变得复杂,并且可能需要联合不同的含量测定以及经典的血液断裂测试加以诊断。

So it needs improving or alternating urgently. Some good germplasms for rootstocks for citrus have been picked out and introdcted into. Some somatic hybrids used as rootstocks have been selected through somatoplasm fusion. Some methods in early identification on stability of inherence and copatiblity and dwarf are explored, and they need improving. Rootstocks having some virtues have been selected, but they cannot take the leading place of trifoliate orange. The research method that the rootstocks are only compared with each other should be altered into that the rootstocks and given control measures or environmental conductions are connected to make the rootstocks compared with each other.

在砧木选择研究进展上,中国调查出和引进了一些优良的柑橘砧木种质资源,通过体细胞融合选育出一些可作为柑橘砧木的柑橘体细胞杂种资源;在柑橘砧木资源的遗传稳定性、嫁接亲和性和矮化性等早期鉴定上,探索出一些有待完善的鉴定方法;在砧木选择上,选出一些具有某些优点的砧木,但尚不能冲击枳砧的主导地位,并且选择研究方法有必要把现行单纯的砧木比较改为与砧木种类、栽培技术或环境条件相结合进行比较。

Analyzing the relations among betulin content and growth status, geographical location and climatic factors, it was found that the effect of growth status on betulin content was not significant, and betulin content was not only affected by self-provenance and heredity background but also by geographical location and climatic factor.

进一步分析可得,同龄树种的生长状况对白桦酯醇的含量影响不显著;而白桦酯醇的含量不仅受自身种源及遗传背景的影响,同时也受到其所处地理位置和气候因素的影响,即属于基因与环境互作的表现性状。

There were on unique different protein observed in flag leaf at different development stage; but unique different protein were found in anther at binucleated stage and the male-sterile materials lack a 31 kD polypeptide compared with normal material.

结果表明,从不同发育时期的旗叶可溶性蛋白中尚未发现特异蛋白的存在,但在花药中发现有特异蛋白的存在,表现在二核期生理型雄性不育界遗传型雄性不育材料均比正常的可育材料缺少了1条分子量为31kD的多肽。

The results showed that it would gain higher sustainable genetic respons and lower inbreeding rate when implementing BLUP selection in larger population. When the sire-dam ratio was too low, it would not only decrease the genetic response, but also increase the inbreeding rate. To gain higher genetic progress and acceptable inbreeding rate, it should keep enough large population size and feasible sire-dam ratio in practice.

结果表明,扩大育种群规模不仅可以获得更大的持续进展,同时还可有效缓解近交系数的过快上升;育种群中公畜比例过低时,不仅会降低遗传进展,群体近交系数的上升速度也会加快,实际中应保证育种群具有一定的规模和适宜的公母比例。

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推荐网络例句

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面,更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值,分为几个相等的区间作为横轴,并将各区间内所测定值依所出现的次数累积而成的面积,用柱子排起来的图形,也叫做柱状图。

You rap, you know we are not so good at rapping, huh?

你唱吧,你也知道我们并不那么擅长说唱,对吧?