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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。

For some creatures have big heads while the face below is small in proportion, as is the case with round-faced animals; some have little heads and long jaws, as is the case, without exception, among animals of the mane-and-tail species.

因为一些生物有一个大脑袋,同时下面的脸却占较小比例,如同圆脸动物的情况;一些动物脑袋小并且有长吻,就如同长毛尾种的动物一样,没有例外。

Even under disadvantageous external environment, they were still positive. Passing through more than 1 year of resistances and difficult endeavor, finally they achieved the great success, making the European Union withdraw the suit. This is our first victory to European Union in antidumping suit after our country joins WTO. And this is also the first time that our mid- and small-scale enterprises got a win. So as a classical case, this suit is worth studying thoroughly. Through analyzing this case, we can find some experience and lessons behind the success.

在本文的论证过程中,通过分别对本案的过程、引起本案的原因以及我国企业的应诉策略的分析和研究得出结论,进而从企业应诉策略建议、实战操作建议以及经营战略建议三个大的方面为我国企业应对对华反倾销提供具有可操作性的对策建议:即企业应以持有积极应诉的态度,选取灵活的应诉策略,充分的准备认真对待应诉过程的每一个环节,并应实施积极的经营战略从根本上规避反倾销。

The results indicate that the distribution of the solar zenith distance versus the occurring probability of earthquakes is quite consistent with the lunar case, and the case for small earthquakes is different from the larger earthquakes. The latter is mainly clustered at 0oand l80o of the zenith distance, and consistent with the distribution of the absolute value of the solar tide forces, while the former are clustered at 60o and l2Oo.

统计发现:地震的太阳天顶距地震频度和月球天顶距地震频度分布表现出一致的规律性,且较大地震和小地震的活动规律不同,较大地震丛集发生在太阳天顶距0°和180°附近,与地面引潮力的绝对值分布有较好的一致性;而小地震多丛集在太阳天顶距60°和120°附近。

Results There were 22 lacunar infarction cases, 1 case large area infarction, and 8 cases with small bleeding in the thalamus, 1 case with large bleeding in the basal ganglia of 9 cases intracerebral hemorrhage. Hemichorea appeared in 27 cases within 24 hours, 5 cases within 1 week. All received aloperidin, the symptom disappeared in27 cases(84.4%).

结果 32例偏侧舞蹈症病例中脑梗死23例(腔隙性脑梗死22例,大面积脑梗死1例),脑出血9例(丘脑少量出血8例,基底节区大量出血1例);脑卒中后24h与1周内出现偏侧舞蹈症症状分别为27例和5例;应用氟哌啶醇治疗后症状消失27例。

Among them,5 were<2 years old,6 with craniofacial deformity:small mandible andmandibular retrusion(5 cases),transverse facial cleft(1 case),Down's syndrome(2 cases),cerebral palsy(2 cases),chronic bronchitis(3 cases)and mucopolysaccharidoses(1 case).Nineteen patients with symptoms of snoring, mouth breathing,were diagnosised as OSAHS by polysemnographyand treated by tonsillectomy andadenoidectomy in hospital.All patients were closely followed-up.

全组患儿中年龄<2岁者5例,伴有颅面部畸形者6例(小下颌、下颌后缩5例,面横裂1例),Down综合征2例,脑瘫2例,伴有慢性支气管炎者3例,黏多糖病1例。19例患儿均住院行整夜多道睡眠监测并接受扁桃体和腺样体切除手术,并对所有患儿进行随访。

DZQ-600L multi-functional gas-filling packaging machine which has many functions. It can be used for sealing packages only, but also for vacuum packaging or packaging of filling with insert gas after vacuum. It adopts mo case anted double gas, and mechanism has no restriction of big or small vacuum case which has a wide scope of application.

DZQ-600L 多功能真空气调包装机,功能齐全,可用于单一的封口包装,也可用于真空包装或真空后充入惰性气体的包装,采用无室双气嘴机构,不受真空室大小的限制,应用范围极广。

It was found that pathological changes could be demonstrated in villi of small intestine, lamina propria of stomach and myocardial cells in case of mice orally administrated with RV, while in case of mice intra-abdominally injected with RV, pathological changes could be demonstrated also in liver and kidneys in addition to the changes mentioned above.

结果 光镜下:RV口服组小肠绒毛、胃固有层、心肌细胞有改变;RV腹腔注射组除上述改变外,肝,肾也有改变;电镜下:肝细胞线粒体肿胀、凝集病变尤为明显,细胞核固缩-崩解,粗面内质网扩张,肝细胞中存在大量脂滴和空泡;毛细胆管明显扩张,微绒毛脱落。

Chirp scaling algorithm is considered more efficient and widely applicable when the bistatic SAR system is in side-look or small squint angle mode,but in large squint angle case,the errors caused by Taylor expansion are so large that the algorithm could lose its precision.In such a case,an equivalent mono-static SAR range mode which has fewer errors than Taylor expansion with large squint angle is proposed to substitute the range history of bistatic SAR.Then bistatic SAR images with large squint angles are gotten by common Nonlinear CS algorithm.The effectivity of the method is verified by Matlab simulation.

在正侧视或小斜视情况下,CS算法具有较好的聚焦性能和广泛的适用性,但在斜视角较大的情况下,该算法将散焦而不能成像,因而提出了用等效的单基地距离模型来代替双基地距离历史的方法,解决了大斜视角情况下距离模型二阶近似误差较大的问题,并结合单基地非线性CS算法,实现了在大斜视角情况下的基于GPS反射信号的双基地SAR高精度成像,最后通过Matlab仿真进行了验证。

a system of along-track mode sar based on the gps is established.by seeing the gps signal as a chirp,chirp scaling algorithm of this mode with large squint angle is investigated.chirp scaling algorithm is considered more efficient and widely applicable when the bistatic sar system is in side-look or small squint angle mode,but in large squint angle case,the errors caused by taylor expansion are so large that the algorithm could lose its precision.in such a case,an equivalent mono-static sar range mode which has fewer errors than taylor expansion with large squint angle is proposed to substitute the range history of bistatic sar.then bistatic sar images with large squint angles are gotten by common nonlinear cs algorithm.the effectivity of the method is verified by matlab simulation.

摘 要:建立了基于gps的顺轨sar系统模型,通过将gps信号等效为chirp信号,研究了在该模式下的大斜视角chirp scaling算法。在正侧视或小斜视情况下,cs算法具有较好的聚焦性能和广泛的适用性,但在斜视角较大的情况下,该算法将散焦而不能成像,因而提出了用等效的单基地距离模型来代替双基地距离历史的方法,解决了大斜视角情况下距离模型二阶近似误差较大的问题,并结合单基地非线性cs算法,实现了在大斜视角情况下的基于gps反射信号的双基地sar高精度成像,最后通过matlab仿真进行了验证。

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推荐网络例句

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸,那乌黑、忧郁的眼睛,她便会相信,他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失

But because of its youthful corporate culture—most people are hustled out of the door in their mid-40s—it had no one to send.

但是因为该公司年轻的企业文化——大多数员工在40来岁的时候都被请出公司——一时间没有好的人选。