偿试利用二元光学的方法选择合适数的相位片对光束进行整形,并就高斯光束均匀化为例进行了数值计算。
In the paper, it is attempted to choose suitable slices of phase for beam shaping by use of binary optics, for example, the uniformization of Gaussian beam is calculated numerically.
通过计算曲线,直观地表示出液相不均匀分布和汽相横向混合对填料塔当理理论塔板数的影响。
The influences of liquid maldistribution and the lateral mixing of gas on the equivalent NTP are shown by the curves calculated.
通过试验得到了转速与播量、破损率和排种均匀性之间的关系,及型孔列数和播量的关系。
By the test, the relation of speed and seeding quantity, seeding uniformity, broken rate, and the relation of seeding quantity and column quantity of hole have been gotten.
本文介绍了用阶乘矩能够消除统计起伏,证明引入累积变量后可使粒子数的分布变得均匀;给出了消除粒子间关联效应的方。
The method of removing statistics fluctuation with factorial moment was introduce and the cumulant variable able to even for distribution of multiparticle production was proved.
将刮板放置在水平的平面上,用小调漆刀将待测样品搅拌均匀,然后在沟槽最深部分滴入试样数滴,以能充满沟槽而略有余为好。
Place the gauge on a horizontal, flat , non-slip surface . Stir the sample homogeneous with small palette knife , and the pour sufficient liquid into the deep end of the gauge channel.
按照这个规则排布光束,可在光束数有限的情况下获得较高的辐照均匀性。
According to the rules, one can obtain higher irradiation uniformity under the case of limited number of beams.
依据中心极限定理,用均匀分布随机数求和的方法得到趋于高斯分布的白噪声。
White noise tending to Gaussian distribution is implemented by summing uniformly distributed random numbers according to the central limit theorem.
采用均匀随机数蒙特卡罗法计算多重积分是一种简单而有效的方法,其程序结构简单,易于编制和调试。
Monte Carlo method by adopting uniform random number is a simple and effective way to calculate multiple integrals, its structure is simple and easy to program and debug.
按每年新产品导入数的变化状况,分均匀分布、线性增长、指数增长三种情况进行模拟迭加研究。
According to the varying situation of the quantity of introduced products, we research it by uniform distribution, linear growth and exponential growth.
种群格局信息维数能够刻划格局强度的尺度变化程度,揭示出种群个体分布的非均匀性状况。
The information dimension of population patterns quantifies the scale variation degree of pattern intensity, and discloses the unevenness of individual distribution.
选取了斑块数、平均斑块面积、斑块形状指数、破碎化指数、分维数、景观异质性指数和景观均匀度指数等指标进行研究分析。
Several targets, such as patch number, average patch area, form index of patch, fragmentation index, sub-dimension, heterogeneity index of landscape and homogeneity index of landscape were studied.
该方法通过混淆运算、频隙映射的方式产生出均匀性好、可用频隙数小于512的任意频隙跳频序列。
Through the operation of confusion and slot number mapping, a frequency hopping sequence can be produced with fine uniformity and less-than-512 arbitrary slot number.
指明非平衡系统的宏观熵产生是由其微观状态数密度在空间随机地不均匀离开平衡引起的。
It shows that the macroscopic entropy production in a nonequilibrium system is caused by spatially stochastic and inhomogeneous departure from equilibrium of the number density of micro-states.
得到了不同封头结构的物流分配不均匀特性与雷诺数之间的关系式。
The correlations of the flow maldistribution characteristic with Reynolds number are obtained under different header configurations.
使用计算流体力学软件FLUENT,模拟均匀来流绕固定圆柱的流动,模拟雷诺数为20,40,100时的绕流流动,得到流场的流函数等值线图和速度矢量图。
Uniform flow around a mounting cylinder is simulated with the application of FLUENT software while Reynolds number is 20, 40,100. Stream function and velocity vector distributions are indicated.
对于改进型中心极限定理法,用概率密度转换器对均匀分布的随机数做密度转换,然后再累加产生正态分布的随机数。
With new Central Limit Theorem, convert the uniform random number's probability density using probability density Converter, then add all generated random Numbers.
以伪均匀随机数为基础,根据大数中心极限定理,产生高斯分布随机数。
Based on pseudo random uniformity number and the central limit theory of great numeral, random Numbers of Gaussian distribution are produced.
在声呐阵阵元数增加的条件下,用本文的方法,能抑制均匀线阵的互耦的影响。
At the cost of increasing the number of the array elements, the method presented in this paper can reduce the affection of the mutual coupling among array elements.
表土颗粒分形维数与粘粒含量呈显著正相关,与均匀指数呈显著负相关。
The dimensions are positively relative with clay content, and significantly negative with even index.
方法:先刺溃疡面中央,再沿中央往外均匀点刺数针至数十针(视溃疡面大小),以血溢满溃疡面为宜。
Method:Regards ulcer surface size, on ulcer surface the even prompt piercing number needle to dozens of needles. Ulcers with blood covered is appropriate.
对于断裂体系而言,分形维数越大,则断裂分布越不均匀,断裂越发育。
Fault systems with larger fractal dimension consist of better developed and less evenly distributed faults.
在分离的LV上以相同方向、均匀的切片,使用无偏倚的立体学方法,评估心肌细胞核总数、每个心肌细胞的细胞核数。
Isotropic, uniformly random sections were cut from theisolated LV, and the total number of myocyte nuclei and the average number of nuclei per myocyte were estimated using unbiased stereology.
GOOGLE会在一天的时间内均匀地发布你的广告,使你的点击数在日预算内或低于日预算。
If your daily budget is lower than the recommended amount, Google will deliver your ads evenly throughout the day to keep your clicks at or below your daily budget.
本文设计了三种频率的CO2激励射流,将其横向注入马赫数2.5的均匀超声速来流当中。
The CO2 jet excited under three different frequencies was injected into the Mach 2.5 supersonic flow.
最著名的当数外婆红烧肉,肥瘦均匀的肉装在特制的大瓦罐内,酥软适中,入口即溶。
The most well known dish is nothing but Grandmother pork braised in brown sauce that a well-marbled roast of meat is packed in a big special pottery jar and it is crumbly and delicious.
最著名的当数外婆红烧肉,肥瘦均匀的肉装在特制的大瓦罐内,酥软适中,入口即溶。
The most well known dish is nothing but Grandmother pork braised in brown sauce that a well-marbled roast of meat is packed in a big special pottery jar and it is crumbly and delicious.
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