大尺度
- 与 大尺度 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The metal nanocrystals memories come into notice as so many advantages. The advantages of metal nanocrystals over their semiconductor counterparts include low power consumption, higher density of states, smaller energy perturbation due to carrier confinement, stronger coupling with the channel, better size scalability, and the design freedom of engineering the work functions to optimize device characteristics.
然而金属的量子点记忆体在近年来受到瞩目,其相对於传统半导体材料用於量子点记忆体上,有诸多的优势,其优势包含低功率耗损、高密度的能阶、没有明显的量子局限效应、有效降低元件尺度、且可调变的空间大,因为随不同的金属有不同的功函数。
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It is difficulty to obtain the real-time information about the formation process of these materials by experimental techniques. Because the composite contains a large number of atoms, it is not possible to use the first principles methods to investigate the growth process.
由于在实验上观察这些复合材料的形成过程还存在着现实的困难,采用第一性原理方法计算量又太大,因此,分子动力学模拟就成为了在原子尺度上研究这一问题的最好的方法。
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Numerical simulations were carried out to study the effect of reversible work and viscous dissipation on the heat transfer characteristics of compressible fluid flow in microtubes.
利用数值方法讨论了压力功和粘性耗散对微细光滑管内可压缩流动换热特性的影响,得出以下结论:微细管内 Ec沿管长是变化的,仅依据入口处的 Ec对压力功及粘性耗散的作用进行取舍是不确切的;等热流及等壁温换热条件下的计算结果显示,在入口 Ma及长径比较大时,考虑压力功及粘性耗散时得出的 N u要小于常规尺度管的理论值,在等壁温情况下,甚至出现了热流方向发生变化的情况
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The results show that the dynamic force and thermal conditions of forming the squall line were the convergence of cold air from Mongolia cold vortex and the warm-humid air current before west trough to form the convectional system at moderate 3 scale; the rapid development and southward shift of MβCSs was caused by a strong unstable stratification and the shear line of suitable vertical wind; a heavy hail occurred after a vertical liquid water content over 65 kg/m^2 was firstly measured by weather radar; a sharp reduction of VIL indicates that a disaster strong wind will occur at soon.
结果表明:蒙古冷涡旋转下甩冷空气与西风槽前的暖湿气流汇合,形成中p尺度的对流系统是飑线形成的前期动力和热力条件;强的不稳定层结和合适的垂直风切变导致了MβCSs的迅速发展和南压;在天气雷达首次观测到垂直液态水含量值超过65kg/平方公尺后2h内出现了大冰雹;垂直液态水含量的突然减小标志着灾害性大风的开始。
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We construct a family of iterative mappings, which yield cyclic windows of variant size in the dynamical plane by incorporating cosine functions and non-linear angle variables with parameters. Chaotic attractors and filled-in Julia sets in the different cyclic windows are created by establishing the coordinates of any cyclic windows and the maximal window, then clarifying the relationship of corresponding points between these cyclic windows. The respective images in different windows are continuous but with individual structures.
该算法采用余弦函数及含参的非线性角度变量构造一族使动力平面上各周期窗口的尺度变化的迭代映射;通过计算任意周期窗口和最大周期窗口得出窗口间相应点之间的非线性对应关系,并构造出各周期窗口中的混沌吸引子和充满Julia集,其图案是连续的且结构不同的;选用不同的周期窗口作为基本计算区域,使之与正方形像素矩阵对应,并构造出基本图元,实现了用一个映射构造出多个平面排列图案的算法。
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In this paper, the modified method of multiple scales is applied to study the bending problems for circular thin plate with large deflection under the hinged and simply supported edge conditions.
本文应用修正多重尺度法研究圆板在铰链和简单支承条件下的大挠度弯曲·作出其级数解,分析其边界层效应和证明其渐近性
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The composite film appeared semitransparent and brown to yellow from optical microscopy. Results show that shorter time sol-heating results in thiner film with less surface roughness, less conglutination to base, and easily to disconnect, while longer time sol-heating results in thicker film with better conglutination to base and worse roughness. RDX distributes in the film everywhere on the whole but discretely on the scale of 2.4 μm according to EDS results. XRD curve of RDX/RF film shows the superposition of RF non-crystal bread curve and RDX crystals diffraction curve. RDX diffraction peaks are broadened and its crystal size is calculated to be lower to 43 nm.
实验所得薄膜半透明,呈棕红色至黄色;实验表明,溶胶恒温加热时间较短时,所得薄膜的单层厚度较小,较平整,但附着力小,干燥后易脱落;恒温加热时间较长时,所得薄膜的单层厚度较大,不易脱落,但表面平整性较差;能谱测试表明,薄膜中的RDX整体上分布较为均匀,但在测试点位间距为2.4μm的微观尺度上呈离散状分布;XRD测试表明,RDX/RF复合物薄膜表现为RF的非晶态馒头峰与RDX衍射峰的叠加,RDX衍射峰明显宽化,其晶粒度可低至43 nm。
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Especially, the viscous-plastic model and its modifications, which were applied widely at large and meso-scales in the polar and sub-polar ice field, were discussed in details.
尤其对在极区及副极区大、中尺度下广泛应用的黏塑性及其改进的本构模型进行了深入地分析。
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Any function on an interval will be expanded as the sum of finite items of the scaling functions and wavelets. It plays an important role for numerical analysis of partial differential equations, signal processes, and other similar problems.
于是,任何有限区间上的函数皆可表示为该区间上的尺度函数和小波函数的有限和,即小波级数,这克服了用无穷区间上的小波进行有限信号处理时,在边界上误差较大的不足,同时将该小波用于偏微分方程具有同样重要的意义。
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In fact, the flow in stirred tank is unstable, and the fluxion changed from time to time, as well as space. Macro-instabilities are the most apparent.
事实上,搅拌槽内流体流动是非稳态的,槽内流体在相当大的时间和空间尺度上存在着流动的明显变化,宏观不稳定现象是其中明显变化的一种情况。
- 推荐网络例句
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The split between the two groups can hardly be papered over.
这两个团体间的分歧难以掩饰。
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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。
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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