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As well, ACA outperforms GA in performance on average. 2. Through the analysis and studying of Ant colony algorithm and Flow shop scheduling problem, a construction graph is introduced. Two ant colony algorithms are proposed and analyzed for solving the flow shop scheduling problem with the objective of minimizing the flowtime. The Initialization of parameters and updating of trail intensities and probability is described respectively and a newly local search technique is proposed. Last is the experiment and the comparison shows that the PACA performs better than the FACA in the case of relatively large-sized problems than in the case of relatively small-sized problems.

通过对基本蚁群算法的实现过程和流水调度问题进行研究,给出了求解流水调度问题的解构造图,提出了两种蚁群算法来求解以总流程时间最小为目标的流水调度问题-FACA 蚁群算法和PACA 蚁群算法,分别给出了FACA 蚁群算法和PACA 蚁群算法的参数初始化方式、相对应的信息素更新方法和概率分布规则,并提出了局部搜索模式,最后进行模拟试验,对这两种算法进行比较,试验结果表明:对于较大规模的问题,PACA 蚁群算法要优于FACA 蚁群算法,而对于较小规模的问题,FACA 蚁群算法优于PACA蚁群算法。

The neighbouring Streamside Colony wipes out the Trailheaders, then itself falls victim to a "supercolony", comprising millions of workers and thousands of queens, which rose to power thanks to a single-gene mutation that weakens their sensitivity to queen-odours, and thus permits them to tolerate multiple simultaneous queens.

邻近的"河边蚁群"彻底摧毁了"道口蚁群",后来,"河边蚁群"自身又成了"超级蚁群"的刀下鬼。"超级蚁群"由数百万工蚁和数千只母蚁王组成,该群得以成长为超级群,缘于一次单基因突变,该突变削弱了蚁群对母蚁王气味的敏感度,从而,使得蚁群可以接受数个母蚁王同时存在。

To investigate the exocrine compounds of coptotermes formosanus dinergate the exocrine concentrate was obtained by different extraction.

本文主要讨论采用不同提取方法所得家白蚁兵蚁的外分泌化合物的组成及相对含量的变化。

As for the density of species, they are differences in the density of insects, but ants, Lasius niger are the dominant species for their maximum density.

就各目的种的密度来说,昆虫的密度存在差异,但蚂蚁、黑蚁的密度最大为优势种。

At genus level, Inner Mongolia Xinjiang region components were 15 genera of which Tetramorium, Proformica and Cataglyphis were typical; North China region components were 15 genera only except Cardiocondyla. Each of Qinghai Xizang region and Northeast China region components was four genera of which Formica and Lasius are typical. Southwest and South China regions components play no significant role.

蒙新区分布的成分有15属,其中以铺道蚁属、原蚁属及箭蚁属为主体,蚁属和心结蚁属次之;青藏区分布的成分有4属,以蚁属和毛蚁属为主体;东北区分布的成分有5属,蚁属和毛蚁属为主体;华北区分布的成分有15属,其中以蚁属、红蚁属和毛蚁属为主体,仅心结蚁属无分布;华中区、华南区和西南区分布的成分均不明显。

If there exists something more dreadful than the perpetual darkness that enshrouds the forest like the mighty hands of Yama himself, an impenetrable veil ensconcing all things sinister to be unleashed upon his clan, it must be the thought of a well-executed ambush commanded by the most feared warrior in the known world: a man with a reputation to loot, to kill, to plunder, a conqueror of the entire continent, a harbinger of death, the herald for doomsday to exterminate man like puny ants via fire and steel!

他将自己深深地隐藏在一个阴暗面具之下,所有阴晦的事都由这个组织处理,这就是为人所知的被大多数武林认识所惧怕的完美伏击:他的对手,是一个犯下滔天大罪的人,恃强凌弱,强取豪夺,杀人如麻,这个江湖中所有的罪恶都与他有关,他是武林的霸主,而那些处于角落的毫不起眼的弱小的人们若想与他作对,就如同用区区小蚁的身躯去接受火的灼烤与金刚的压迫。

Ningxia is the traditional producing area of medlar .If we can utilize solar energy to dry medlar, which not only can solve some problems during the course of tedding naturally ,such as bad results of lumping , going mouldy , and getting damp easily, etc, but also can overcome disadvantage factors caused by the weather changes, the pollution of sand blown , dust , fly , and ants ,etc..

宁夏是正宗的枸杞原产地,能够利用太阳能装置烘干枸杞,不仅解决自然摊晒中出现的脱水效果差,容易返潮,结块和霉变等不良结果,而且也克服了由于天气变化,风沙、灰尘、苍蝇、虫蚁的污染等不利因素。

Other natural ways to fight the fire ants are also possible.

另外的消灭火蚁的自然方法也是可能的。

In the system,which the database of red imported fire ant was considered as the basis,and GIS and GPS techniques were used as important support techniques.The predict and control management of fire ant will be more scientific and more convenient if the GIS management system were put into practice.

系统设计中以红火蚁发生和防控数据库为基础,以GIS为支持平台,结合GPS技术,以地图和数据报表等形式分析和展现我省各市县红火蚁蚁巢、发生点、发生区和监测区等的发生及防控情况,组建红火蚁GIS管理系统有助于我省红火蚁文件资料和数据信息的科学化管理。

Farmers in parts of the United States have struggled for years with an invasion of red imported fire ants from Brazil.

美国的部分农场主已经与一种从巴西而来的红色火蚁的入侵抗争了多年了。

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