数值的
- 与 数值的 相关的网络例句 [注:此内容来源于网络,仅供参考]
-
The main results are as follows:(1) the distance a sounding balloon drifts during operation is a lot longer than that is accepted as a horizontal resolution by present numerical models;(2) the positioning scheme presented for sounding balloons is basically applicable to a resolution of 10 km × 10 km;(3) on the whole, the position correction leads to the fact that the resulting analytic increment field is one order of magnitude smaller than the original;(4) analysis of the model predictions shows that soundings, when positioned,leveled soundingswould improve predictions.
结果表明:探空气球在施放过程中的漂移距离远远超过目前数值模式可取的水平分辨率;所设计的探空气球定位方案对水平分辨率为10km 10km的数值预报模式基本是可用的;总的来讲,位置订正对分析增量场的改变与原分析增量场相比小一个量级。模式预报结果显示,探空资料的定位使降水预报效果得到了改善。
-
After the brief retrospect of spectral methods applied to get the numerical solutions of partial differential equations, the Walsh spectral methods are extensively studied. A new method of designing the "derivate operator" and a new Walsh spectral method based on quasi-Walsh order are proposed, which primarily prove the special uses of it.
回顾了数值求解偏微分方程的谱方法,比较深入地考察了数值求解偏微分方程的Walsh谱方法,提出了一种新的设计"求导算子"的方法,基于这样设计出来的"求导算子",提出了一种新的基于类Walsh序的Walsh函数的Walsh谱方法,初步验证了这种序的特殊价值。
-
The following are the major work in this thesis which has been studied and still needs to be studied further in the future: 1 An improved adjoint variational method is developed, thus it can be applied to the LAGFD-WAM Wave Numerical Model for data assimilation; 2 A linear evolution equation of spectral perturbation is derived in order to analyze its increasing or decreasing mechanism.
本论文主要完成了以下几个方面的研究: 1)建立了推广形式的共轭变分同化方法,使之能够应用于LAGFD-WAM海浪数值模式; 2)导出了扰动谱线性演化方程,分析了扰动谱增长、衰减机制,考察了涌浪情况下扰动谱的持续时效问题及风浪情况下扰动的演变过程; 3)利用波谱共轭方程初步分析了同化模型中距离泛函的敏感性及敏感区域空间分布; 4)将推广的共轭变分方法应用于海浪谱能量平衡方程,建立了连续形式的海浪同化模型,特别是严格导出了风输入、破碎、底摩擦、波波非线性相互作用和波流相互作用各源函数的共轭源函数表示式; 5)分别进行了波谱层次上和有效波高层次上的同化试验,并对数值结果进行了分析。
-
As the beginning of this thesis, the important meanings of sea ice to global climate change and ocean engineering in polar and subpolar sea regions are explained firstly. Then, it is pointed out that sea ice numerical modelling, as a powerful tool of sea ice research, is limited by the precision of parameters within models instead of itself so far. It is meaningful to study the important parameters of sea ice dynamics by means of the rapidly developing digital imaging techniques so as to provide better input parameters needed in numerical models.
文中首先阐述了海冰对全球气候变化和极区、亚极区海域海洋工程问题的重要性,并指出作为海冰研究重要手段之一的海冰数值模拟发展到目前,其准确性更加受到海冰参数而非模式本身的限制,因此以目前快速发展的数字图像技术为工具对海冰动力学过程中的重要参数进行研究,以提供数值模式所需要的高精度和准确性的数据,是非常有必要的。
-
In the first chapter, the application background and the main algorithms of the complementarity problems is introduced. In Chapter 2, some basic definitions and theories of complementarity problems are introduced. The 3rd chapter is the most important part of this paper, in which a new class of smoothing Newton method is detailed, also the global and local superlinear convergence is established for the method. In the 4th chapter, we propose some numerical experiment, and the results show the effectiveness of the proposed algorithms.
全文共分为四章,各部分内容安排如下:第一章是绪论部分,介绍了互补问题的应用背景和近年来有关互补问题求解方法的研究成果;第二章介绍了与互补问题相关的一些定义以及相关的定理和推论;第三章是本文的重点,构造了求解互补问题的一类光滑牛顿法,从理论上证明了算法的全局收敛性和局部超线性收敛性;第四章是数值实验,通过数值试验的结果进一步证明了算法的可行性和有效性。
-
Unbraced Length Ratio means if the distance between lateral bracing. If the ratio is small, the capacity of the beam might reach 0.66Fy. If the ratio is small enough, it will reach 0.66Fy. On the other hand, if the ratio is high, then then capacity is low.
答:应该是平面外支撑的问题吧, Unbraced Length Ratio中的数值并不改变程序计算出来的结构的内力,但是却能改变杆件的承受力和变形的能力,数值越少,就是说不支撑的距离越短,承载能力也越强,那么 ratio 肯定就越小,结构会越稳定。
-
Gemetria, which consists in the use of the numerical values of the letters of a word for purposes comparison with other words, which give the same or similar combinations of numbers: thus in Genesis 49:10,"Shiloh come" is equivalent to 358, which is also the numerical value of Mashiah, whence it is inferred that Shiloh is identical with Messias; the Notarikon, or process of reconstructing a word by using the initials of many, or a sentence by using all the letters of a single word as so many initials of other words; for instance, the word Agla is formed from the initials of the Hebrew sentence: Thou Mighty forever.
,其中在使用数值价值观的英文字母一个单词为目的的比较与其他换句话说,它使相同或相似的组合号码:因此,在成因49:10 ,&希洛来&,是相等于358 ,这也是数值mashiah ,何时这是推断,希洛是完全相同的messias ; notarikon (拉丁语notarius ),或重建过程中一言用英文缩写很多,或句子用所有信件的片言只字,因为有这么多的英文缩写,换句话说;举例来说,这个词agla是形成了由字母,希伯莱一句:&你条,浩浩荡荡永远的&。
-
The fluid flows and heat coupled calculation method is used. The standards two equations turbulence models, velocity and pressure coupled arithmetic are used.According to the results of numerical simulation analysis the local coefficient distribution changes along the pin fins.Study the effection that its height and shape of the pin fins have on the average Nu and the average number of pressure loss coefficient Eu.The circle-shaped and elliptic-shaped pin fins have different circumcolumnar regional,therefore the mixed conditions are effected.
数值计算中采用标准双方程湍流模型,速度压力耦合算法;根据数值模拟的结果分析沿扰流元的局部换热系数分布变化,研究其扰流柱高度及形状对扰流柱通道平均努赛尔特数Nu和平均压力损失系数Eu的影响,圆形和椭圆形扰流柱的绕流尾涡影响的区域的不同对扰流柱群内流体混合状况的影响。
-
In coal gasification techniques, the gasifier is the key equipment which directly affects gasification characteristics, therefore flameless oxidant technology was applied to the design of new gasifier for high ash melting coal, and gasification characteristics in the gasifier were carried out by not only experiments under cold state and therma1 state, but also numerical simulations in this paper.
由于气化炉是煤气化技术中的最关键设备,因此,本文以高灰熔点煤的高效气化为背景,归纳分析了各种先进干煤粉气流床气化炉的炉型结构,将无焰氧化技术应用于粉煤气化,提出了一种基于无焰氧化的新型干法进料煤粉气化炉,进行了炉内冷态、煤粉气化的热态试验和数值计算,分析了高灰熔点煤在该气化炉中的气化特性,并以此为基础,对气化炉的结构进行了优化,提出了无焰氧化分级气化炉,对高灰熔点煤在该气化炉中气化特性进行了数值计算与分析。
-
Using hydrodynamical/N-body simulations and pure dark matter simulations, we found the dark haloes in the first kind of simualtions are more concentrated than in the second kind of simualtions. This result could increase the predicted probability of giant-arcs in gavitational lensing and cancel the great difference between the theoretical and observational results.
用含气体的数值模拟与纯暗物质的数值模拟比较,发现前者暗晕中的暗物质分布比后者中的更加密集,密集参数更大,这可能可以提高理论预言的引力巨弧的概率从而弥补理论与观测结果间的差距。
- 推荐网络例句
-
The split between the two groups can hardly be papered over.
这两个团体间的分歧难以掩饰。
-
This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.
这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。
-
The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.
聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力