查询词典 two dimensional

In addition, Hamilton quaternion, Ma quaternion and their Euler formula similar to that of two-dimensional real signal were discussed.

讨论了Hamilton四元数、马氏四元数及其与二维实信号类似的欧拉公式。

Starting with the force balance for one particle near the membrane surface, two novel characteristic parameters Re_m and Eu_m have been deduced out by using dimensional analysis method, which are similar to traditional Reynolds number and Euler number in forms, but have special meanings for cross-flow microfiltration.

从近膜面微粒的受力分析出发，对错流微滤过程进行因次分析，获得两个与传统形式相同、但具有特殊意义的新特征量Eu_m和Re_m。

An evaluator for the study generated two-dimensional surface of the process, we can refer to the next!

详细说明：一个用于学习二维求值器生成曲面的程序，大家可以参考下！

We provide a substitution box, exponential permutation which has much measurable security, and give a enumerating result and a fast algorithm of calculating such permutation. An almost perfect nonlinear exponential permutation with high algebric degree is proposed. with some discussion on how to select the parameters of such permutation. The experimental result shows us a conjecture that there exists no such permutation over even dimensional space. As a way of generating substitution boxes, we briefly point out the cryptographic weakness of the exponential functions derived from such permutation. We also present two new cryptographic indexes, fixed point and cyclic structure, on which we investigate the performance of such permutation. Finally, we give a viewpoint about the application of correlation immune functions in designing substitution boxes.

提供了一种可度量安全强度的代换盒－幂置换；详细阐述了幂置换的实现和计数问题；给出了一种计算幂置换的快速算法；从几乎完善非线性幂置换角度讨论了幂置换参数的选取，并提出了一种高次几乎完善非线性置换；通过试验给出了关于偶数维空间上几乎完善非线性幂置换的一个猜想；简要给出了由幂置换派生出的幂函数的密码局限性；针对幂置换，提出了两个密码安全指标：不动点和循环结构；证明了幂置换在这两个指标下的密码性能；简要讨论了相关免疫函数与代换盒设计的关系。

Beyond the analytical study of the vesicle shape, Surface Evolver which is a powerful software to simulate two-dimensional surface is used to do the simulation about the shape of closed and opening-up vesicles.

在对膜的形状作解析研究之外，我们还用了软件，Surface Evolver一种适合于研究各种形式能量下的二维膜形状的摹拟研究，来摹拟闭合的与开口的膜形状，得到棒状、三叶星鱼、四叶星鱼、碗状等已在磷脂泡膜和红细胞的临床观察中被发现的形状。

In previous studies, he and his research group used a laser-based technique they developed called two-dimensional electronic spectroscopy to track the flow of excitation energy through both time and space.

利用这个最先进的两维电子光谱，科学家们清晰地观察到能量在色素蛋白复合体内的传导过程。

In order to realize the real-time monitoring of temperature field in furnace, the principle of two-dimensional temperature field reconstruction based on series expansion in acoustic computer tomography is analyzed.

为了实现炉内温度场的实时在线监测，阐述了基于级数展开法的二维温度场的声学CT重建原理。

The one-dimensional time-dependent Schrdinger equation was numerically solved with the symmetric splitting of the short-time exponential propagator and the fast Fourier transformation, and influence of intensity and pulse with on ionization of linear multi-ation molecular ion in two-color laser fields was researched.

利用短时指数传播子对称分割法和快速傅里叶变换技术，数值求解了一维含时Schrodinger方程，探讨了双色激光场中激光的基波和谐波强度之间的不同配比以及脉宽对线性多原子分子离子电离的影响。

Long time behavior of Navier-Stokes equations is studied for steady incoming fluid and two-dimensional exterior domain.

中的一个基本方程，其长时间行为受到越来越大的关注。

Using the flutter model of two-dimensional wing with external store, the effects of pylon stiffness on the flutter speed and the evolution of wing store flutter modes with the variation of pylon stiffness are analysed.

以带外挂二元机翼为计算模型，分析了外挂联接刚度对颤振临界速度的影响以及机翼／外挂系统颤振模态随外挂联接刚度的演化。

Diabetes is a social disease that affects several million people worldwide.

糖尿病是一个社会性疾病，全世界有数百万人罹患此病。

I'll call you on Friday to see if we can reschedule our luncheon meeting at your convenience.

我星期五会给您打电话在您方便的时候我们重新安排我们的午餐约会。