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In order to produce high quality red Fuji apple with good surface quality,10 year-old red Fuji apple (Changfu 2)trees by pot culture were used in this trial in order to study the relationship of microenvironment and the apple surface cataclasm by the methods of shading and spraying during the fruit growth period from 2006 to 2007 in the nursery of Green Graden Ltd.of Agriculture University of Hebei.

为了生产优质果,提高红富士苹果外观品质,于2006~2007年在河北农业大学绿美园林有限公司苗圃以10a生盆栽红富士苹果为试材,品种为长富2,分别采取在果实发育期搭遮荫网适当遮荫、高温时间喷水降温等处理措施,研究了果实微域环境温湿度与红富士苹果果面碎裂发生的关系。

In this paper, we introduce the algorithm of Schoof-Elkies-Atkin to compute the order of elliptic curves over finite fields. We give out a fast algorithm to compute the division polynomial f〓 and a primitive point of order 2〓. This paper also gives an improved algorithm in computing elliptic curve scalar multiplication. Using the method of complex multiplication, we find good elliptic curves for use in cryptosystems, and implemented ElGamal public-key scheme based on elliptic curves. As a co-product, we also realized the algorithm to determine primes using Goldwasser-Kilian's theorem. Lastly, the elliptic curve method of integer factorization is discussed. By making some improvement and through properly selected parameters, we successfully factored an integer of 55 digits, which is the product of two 28-digit primes.

本文介绍了计算有限域上椭圆曲线群的阶的Schoof-Elkies-Atkin算法,在具体处理算法过程中,我们给出了计算除多项式f〓的快速算法和寻找2〓阶本原点的快速算法;标量乘法是有关椭圆曲线算法中的最基本运算,本文对[Koe96]中的椭圆曲线标量乘法作了改进,提高了其运算速度;椭圆曲线的参数的选择直接影向到椭圆曲线密码体的安全性,文中利用复乘方法构造了具有良好密码特性的椭圆曲线,并实现了椭圆曲线上ElGamal公钥体制;文中还给出了利用Goldwasser-Kilian定理和椭圆曲线的复乘方法进行素数的确定判别算法;最后讨论了利用椭圆曲线分解整数的方法并进行了某些改进,在PC机上分解了两个28位素数之积的55位整数。

PSO is a population-based optimization algorithm, which mimics the social behavior of animals in a flock. It makes use of individual and group memory to update each particle position allowing global and local search optimization. The objective function considered was the total weight of the structure subjected to stresses, displacements and forces constraints. The effects of the parameters were investigated as well and such combination of tuning parameters promote a better global search behavior avoiding premature convergence while rapidly converging to the optimal solution. Results showed the effectiveness of the proposed method by comparing with ANSYS Design Optimization Tool (zero-order method). The PSO with the tuning parameters makes it an ideal method for offshore wind turbines foundations optimization tasks.(2) A reliability analysis method for pile foundation bearing axial loads based PSOThe performance function of pile foundation's axially bearing capacity sometimes is nonlinear and complex, on the basis of geometric meaning of structural reliability index, an optimum model with PSO for structural reliability analysis under arbitrary random variables was established, The PSO algorithm is very efficient to solve global optimization problemsIts use in structural reliability field presents not only the advantage of its facility of implementation, but also the possibility to obtain the design point and the failure probability with a good accuracy. In addition, PSO is a zero order algorithm, for no derivative is necessary for its implementation.

本文的研究针对桩式海上风机基础结构的特点,在国内外有关研究成果的基础上对海上风机基础结构优化设计理论和可靠度方法一些相关问题进行了较为深入的研究,具体做了以下几个方面的工作:(1)基于粒子群优化的桩式海上风机基础确定性优化设计方法桩式海上风机基础的优化设计是一个复杂的、非线性约束的优化问题,针对传统的基于梯度信息的优化方法在处理非线性问题中易陷入局部最优解的问题,本文将一种耦合惩罚函数的PSO算法引入到海上风机基础结构概念设计中,PSO算法是从群体动物聚集觅食这一活动中受到启发而发展的,该算法利用个体和群体的信息共享不断改进自身的位置从而进行局部和全局最优搜索,本文中以桩和三脚架连接段直径及壁厚为设计变量,以基础总重量作为优化的目标函数,在给定的约束条件下建立了三脚架基础优化数学模型,另外本文还研究了PSO参数变化对结果的影响,协调的参数组合可以避免陷入早熟收敛而能够快速的获得全局的最优解,通过与ANSYS优化模块的计算结果比较验证了该方法的有效性,本方法为海上风机基础的确定性设计提供了一条有效的途径。

In this paper, the effects of factors like flotation、cooling velocity on distribution and microstructure of the material were studied under the condition of unidirectional and multidi〓tional solidification, an order of magnitude analysis was performad in order to understand the dynamics of an advancing solid/liquid interface behind a particle as well as the behavior of the particle in front of the interface, and a model of critical velocity for the pushing/engulfment transition of particles by the interface was built, the theoretic result gave a good explain to experimental one.

本文考察了在常规铸造和定向凝固条件下,浮力、冷却速度等因素对SiC颗粒分布以及材料组织的影响,分析了颗粒在凝固过程中的行为以及对界面的作用,建立了在胞状树枝晶凝固条件下枝晶对颗粒的推移/吞并临界速度模型,理论分析和实验结果基本一致。

So you master separately action, we return to Fuchu expired in January, we all bring good points of views over the dispute, so that we can view mountain cave, five, six have their pros and cons, masters理法and facilities, no chat convince the public can not decide杨侍郎cooked is cooked wrong, home is boredom,忽听clerk said:"Why not adults and so it goes," a statement after the hearing, the hearts feel pleased but not show, perhaps to a few relatives, the night went to the capital they have points to the division of acupuncture points, the尺许a deep hole and a pack of segments and all geographic landform recorded in the small of the above, together with a small sealed together, shipped home杨侍郎well marked, the to record a small hide, and in the back garden is also out of the ground floor of a packet of soil mixed with one, then called a number of feng shui masters, let them in accordance with fighting in the territories, to the segments of the geographical situation and topography Commentary out, and indicate whether the good point here, whether rich fat and Housing sub-conditions in order to compare with the original records.

于是各位大师便分头行动,一月期满大家回到府中,大家都献上佳穴,各抒己见争执不下,于是大家一同登山观穴,五、六处各有利弊,大师们理法并施,谈天说地无人服众,杨侍郎也无法定夺熟是熟非,回到家中正在苦闷,忽听师爷说道:"大人何不如此这般",听言后,心中暗喜,便叫来几位亲戚,连夜赶往京师地师们所点之穴位,开穴一尺许深并取土一包,并把地理地貌统统记录在小本之上,连同小本一起密封起来,运回家中,杨侍郎作好记号后,把记录小本藏起来,并在后花园的地下也取出一包土混在其中,尔后叫来几位风水大师,让他们根据斗中之土,把所取土之处的地理形势和地形地貌解说出来,并说明此地是否佳穴,能发富贵否与及房分情况等,以便与原记录作比较。

Once a little bit, incoherent drunk-breaking pictures: spring rain, you and I circle the playground tireless running, he served as strands of rain drift stick in our hair, the clothes also does not matter, the most beautiful is not the rainy day, who have escaped the rain with your roof; the sun or bright summer, and you get along so natural, tacit understanding hundred percent, when you, in my side, happy easy, I heard a gentle breeze in the breathing, clear up in days Good quiet; autumn pond, you and I in the water next to pick up a fallen leaves, and carefully buried them good, cold winter, we take each other out, in order to wait for it in every one evening sunset ......

曾经的一点点,支离破醉的画面:春天的细雨中,你和我在操场一圈一圈不知疲倦地跑步,任雨丝沾在我们的发上、衣服上也无所谓,最美的不是下雨天,是曾与你躲过的雨的屋檐;阳光还是灿烂的夏天,和你相处那么的自然,默契百分百,当你,在我的身边,快乐变得简单,听见微风在呼吸,放晴的天好平静;秋天的池塘边,你和我在水旁,拾起一片片落叶,小心翼翼地将它们埋好,冬天的冰冷里,我们彼此取明,为等它于每一个黄昏日落

In a manner worthy staff will book a good storage according to the order in a manner worthy of the book in a manner worthy tuhung, took out a placard with a commentary and electrographs in the samplecopy of the book is correct, check the time by the collar, Assistant, storage in a manner worthy staff third-party can only be found in order to determine the distribution page

2储帖人员将书帖依顺序储好在书帖斗后,各取出一帖配成册与样书核对是否正确,核对时由领机、助手、储帖人员三方确定无误方可进行配页

In order to improve the stability and reliability of the models, especially in the marine platform drilling rig in order to meet the high standards and strict power requirements, CPC Jinan Diesel power demands in accordance with domestic oil market situation and the company markets products in the oil field use, decided to 4012 Long-stroke diesel engine is fully optimized and updated, and comprehensively improve the models of economy, adaptability, especially in reliability to achieve new breakthroughs to make it into a completely independent intellectual property rights, high reliability, power, good , fuel consumption is low, high degree of automation of the diesel engine, making it the leading, world-class level, can completely replace the current oil market, the corresponding power of China's imports of aircraft-grade new model.

为了提高该机型的稳定性和可靠性,特别是为了满足海洋平台对钻机动力的高标准严要求,中油济柴根据国内石油市场动力需求现状和公司产品在油田市场的使用情况,决定对4012型长冲程柴油机进行全面优化和更新,全面提高该机型的经济性、适应性,尤其在可靠性方面实现新的突破,使其成为具有完全自主知识产权的、可靠性高、动力性好、油耗低、自动化程度高的柴油机,使其成为国内领先、具备世界一流水平、可完全替代目前我国油田市场上相应功率档次进口机的新机型。

Based on this, aim at the disadvantage on Wigner Distribution and Fractional Fourier Transform that can't restrain noise interference effectively when be used to detect Linear Frequency Modulated signals interfered by heavy noises, we proposed a improved WD. Simulation results show that this method can restrain noise interference effectively and improve the ability of LFM signals detection. On the other hand, in multi-component cases, WD suffers from the cross-terms, which may impair some of the auto-terms. In order to separate original multi-component signals into components and reconstruct them separately, we can use the method of optimal filtering in fractional Fourier domain. But this method also has a problem that if signals have aliasing in the fractional Fourier optimal domain as well, the reconstructed signals will be distorted. In this thesis, a novel method of quasi Fourier transform is proposed in order to solve the problem of multi-component signal reconstruction, and have good results.

在此基础上,针对Wigner分布和分数维傅里叶变换在处理高噪声背景下线性调频信号检测的问题时存在不能有效抑制噪声干扰的缺点,提出了改进Wigner分布的办法,该方法能够抑制噪声,提高信号的检测能力;针对Wigner分布在处理多分量非线性调频信号时存在干扰项的缺点,以及分数域最优滤波方法在处理多分量非线性调频信号分离重构问题时存在的局限性,该局限性表现为在对最优分数域上也有信号分量重叠的情况进行处理时重构信号发生畸变,提出了新颖的类傅里叶变换的方法,该方法对在最优分数域上也有信号分量重叠的情况也能处理,得到的重构信号失真很小。

The Company has been made SGS/ISO9001: 2000 international quality management system certification, and on this basis the formation of a self-evolving system of chemicals management system, in order to to provide customers with quality products and improve its services, the spirit of continuing the good, and constantly enterprising spirit to perfect every detail, with good quality and good after-sales service, striving to "Baorui Baoliu brand" realm.

本公司已取得SGS/ISO9001:2000国际质管理体系认证,并在此基础上形成了自我不断完善的品管理体系制度,为给顾客提供优质的产品和完善的服务,本着持续该善、不断进取的精神去完善每一个细节,以优良的品质及良好的售后服务,争创&瑞鎏品牌&境界。

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推荐网络例句

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时,他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了

The enrich the peopling of Deng Xiaoping of century great person thought, it is the main component in system of theory of Deng Xiaoping economy, it is a when our country economy builds basic task important facet.

世纪伟人邓小平的富民思想,是邓小平经济理论体系中的重要组成部分,是我国经济建设根本任务的一个重要方面。