查询词典 scheme

A new numbering scheme for labeling rooted trees based on leaf order interval numbering scheme is proposed.

提出了一种新的根树节点编码方法－基於叶序区间的节点编码。

Based on this, a new WENO difference scheme which based on Dispersion-Relation-Preserving relation is developed, and representative test cases with this scheme for computational aeroacoustics problems has been implemented and compared in order to test capability of wave capturing; In addition, WENO schemes generally do not converge at high order in the presence of contact discontinuity of Euler equations, so a conservative front tracking technique coupling WENO schemes and Level Set method to simulate the translating density profile is presented here, and numerical simulation with this technique for representative test case has been implemented and results show the desired accuracy.

本文研究了高阶精度加权基本无振荡格式及其在双曲守恒律方程中的应用，在此基础上作了两个方面的工作：一是针对高频声波问题构造出一种基于保色散关系的WENO有限差分格式，并对计算气动声学问题的代表性算例进行了大量数值实验，比较了该格式捕捉波数的能力；另外，针对高阶WENO格式在处理Euler方程的接触间断时精度有所降低的问题，研究了利用界面追踪技术Level Set方法和高阶激波捕捉WENO格式相结合的一种守恒追踪方法，并且给出有代表性的密度滑移面问题的算例，得到一致高阶精度的数值模拟结果。

By range analysis of the orthogonal designing scheme, the sequence affecting pump head and efficiency of the four main factors were obtained, the number of short-blade, the deflection angle, the bias angle in peripheral direction, the radial inlet position and the number of short-blade, the radial inlet position, the bias angle in peripheral direction, and the deflection angle, meanwhile the best design scheme of short-blade was given.

通过对正交设计方案结果的极差分析，得出各因素水平对扬程和效率影响的主次顺序分别为短叶片数、偏转角、周向偏置度、径向进口的相对位置和短叶片数、径向进口的相对位置、周向偏置度、偏转角，从而得到超低比转速高速离心泵复合式叶轮短叶片的最佳设计方案。

This method can be applied to arbitrary Orthogonal Space Time Block Code scheme with TAS, and the generalized formula of SEP is also presented for Alamouti TAS scheme with imperfect feedback.

这种近似的方法适用于采用任意正交空时分组码的TAS系统，并且对于发送端选择两天线的系统还给出了SEP的显式表达式。

Work has complied with the applicative parallel angle several kinds TFT-LCD drive scheme first , has selected and used by comparing monolithic machine , DSP , ARM and the CPLD function with the queen who applies occasion owing to that the CPLD TFT drives the scheme applying, it can accomplish two RAM function by the fact that SRAM carries out a gap coming read-write , realize the outer-ring processor and TFT data interworking.

本作品首先从应用的角度比较了几种TFT-LCD的驱动方案，通过比较单片机、DSP、ARM及CPLD的性能和应用场合后选用了基于CPLD的TFT驱动应用方案，它可以通过SRAM进行间隔读写来完成双口RAM的功能，实现外围处理器和TFT数据的交互工作。

In the scheme we employ the CMSs signed data format and enveloped data format to encoding the public key message transfer in authentication. So the PKINIT-CMS scheme can offer an approach to combine the Kerberos with PKI pellucidly .

在传递的公钥认证相关消息的签名和信封数据部分的格式采用加密消息语法中的SignedData格式和EnvelopedData格式来封装，这样为Kerberos与PKI的透明结合提供了途径。

A new scheme of frequency measurement in hydro-turbine governor is introduced in this paper. Instead using single-chip computer or P LC high-speed count module, it utilizes the interrupt functions and high-speed counter in the PLC base unit and peripheral circuit. With enhanced reliability and reduced cost, the governor designed in this scheme shows good application pr ospect.

介绍一种在水轮机调速器中实现频率测量的新方案，该方案不需要单片机，也不需PLC的高速计数模块，它是利用PLC基本单元的中断功能、内藏的高速计数器及相应的外围电路得以实现，从而既提高了调速器的可靠性，又降低了其成本。

The synthesis scheme we developed can deal with changes in visibility, produce perspectively correct views and handle the distortion around the circumferences in the synthesized views. In our scheme, the area without corresponding points was first determined by using Fourier transformation in order to deal with distortion problem, within the mutual overlapped area the z-buffer values of matched key points were computed so that the visibility in novel views can be handle correctly, lastly the common points in new views are rendered through epipolar geometry constraint.

算法的步骤为：利用傅立叶变换方法确定相邻源图像无对应点的区域；然后，利用尺度空间和相位一致原理在共同区域提取及匹配边缘上的关键点，计算其深度值，并在新图像中由该值判别虚拟图像中的可见性；再由关键点恢复极线约束，通过极线间的位置和颜色插值生成虚拟图像中有对应区域的一般点；在确定极线位于无对应点区域段后，利用加权平均或放大插值的方法实现了源图像无对应点区域在虚拟图像中的自然过渡。

We constructed a finite volume scheme of fifth order Hermite type with high accuracy for twopoint boundary value problems, choosing trial and test spaces as the fifthorder finite element space of Hermite type and the piecewise linear function space respectively. We didn't use higher derivatives as interpolation conditions, which is the same as the thirdorder finite element of Hermite type, but the scheme obtained had higher accuracy.

构造求解两点边值问题的一种Hermite型五次元高精度有限体积法，其中试探函数空间取Hermite型五次有限元空间，与Hermite型三次元相同，未引入更高阶导数作为插值条件，检验函数空间取分段线性函数空间，这样构造的格式求解精度更高。

Based on analysis of the logical key hierarchy scheme and in combination of the superiority that the polynomial expansion performs well in small scale multicast,a modified key management scheme PE-RLKH is proposed.

文章在分析LKH算法的基础上，结合在小规模组播时PE算法性能较好的优势，设计了一种改进的组播密钥管理方案PE-RLKH方案，并给出相应的更新算法。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。