查询词典 Cartesian coordinates

In this thesis, we gives a novel graphical representation of DNA sequences by taking four special vectors in 2-D Cartesian coordinate system to represent the four nucleic acid bases in DNA sequences, so that a DNA sequence is denoted on a plane by a directed walk.

由于在DNA计算中，信息总是通过特定长度的DNA序列来表示的，因此，选择高质量的方式来表示DNA序列就成为一个重要的问题。

Descartes' influence in mathematics is also apparent, the Cartesian coordinate system allowing geometric shapes to be expressed in algebraic equations being named for him.

笛卡尔在数学中的影响也很显著，因他而命名的笛卡儿坐标系让几何图形可用数学方程表达。

Then, the turbulent SRNS equations and the two equation k-ε turbulence model are presented in Cartesian coordinate system, the equation of turbulence model is parabolized to adopt the space marching method.

为了数值模拟湍流流动，给出了直角坐标系下湍流SRNS方程及K-ε双方程湍流模型，并对K-ε方程进行了流向抛物化以适应空间推进求解的要求。

Three altimeter data——Geosat/GM, ERS-1/35day and Topex/Poseidon, and two gravity recovery methods —— inverse Stokes formula with 2DFFT and along-track vertical deflection with 1D Hilbert Transform, are used in this section. The second method is developed independently by author on the basis of the Laplace's equation in Cartesian system.

主要利用三颗卫星测高数据——Geosat/GM、ERS-1和Topex/Poseidon，采用了两种不同的重力异常恢复技术——Stokes公式逆运算+FFT处理和改进后的沿轨迹垂线偏差恢复法，构造了两个区域大小不同、分辨率不同(30'×30'和2'×2')但精度大体相同(10mGal)的重力异常——IGG97和IGG99S。

We now derive, based on the above results, sufficient conditions for a Cartesian product network

我们现在得出，基于上述结果，有足够的条件，笛卡尔积网络

In this paper ,we study the crossing numbers of the cartesian product graph and complete tripartite graph.

本文研究某些简单图与路，星图的笛卡尔积图的交叉数和完全三部图的交叉数。

In this thesis, we study the edge difference set of cartesian product of two paths under the balanced binary mapping.

本论文研究在平衡映射下两条道路的直积图的边差集。

Generally speaking, calculating the crossing numbers of graphs is very difficult, there are only a few results in this area at present, and the majorities are some special Cartesian product graphs.

一般来说，计算图的交叉数是一个很难的问题，目前只有少数这方面的结果，其中大部分是一些特殊笛卡尔积图的交叉数。

In chapter two ,we determine the crossing number of the cartesian product of five graphs on 6-vertex with path.

第二章：我们确定了6个7阶图与路的笛卡尔积图的交叉数；第三章：我们证明了4个五阶图与星图的笛卡尔积交叉数；第四章：我们求出了完全三部图K_(1，m，n)的交叉数。

The resulting tuple stream contains one tuple for each combination of values in the Cartesian product of the input sequences.

结果元组流对每一个值与输入序列的笛卡儿乘积的组合包含一个元组。

"The operators will suffer a temporary decrease in the number of consumers and short message services as people may not like having to provide their ID cards for a phone number," Xu Junqi, vice-dean with the Policy-Making Institute of the Telecommunications Research Centre under MII, said yesterday.

信息产业部下属的通信决策研究院副主任徐俊其昨天说：&实行手机实名制后，人们可能不太情愿用身份证注册手机号，所以通信运营商会暂时面临用户减少和短信用户减少的问题。&

I don't believe in make-believe!

我不相信这些虚构的故事。