1) Johnson graph
Johnson图
1.
The Johnson graph J(n, k) is defined as follows: Let n and k be fixed positive integers with n≥k, andΩa fixed set of size n.
Johnson图J(n，k)的定义如下：设n，k是固定的正整数且满足n≥k，Ω是大小为n的固定的集合，那么J(n，k)的顶点集由Ω的所有k元子集组成，两个顶点相邻当且仅当这两个顶点对应的k元子集的交的大小为k-1。
2.
In this dissertation, from the construction point of view, using the methods of induction and contradiction, we obtain these conclusions: the incidence chromatic number of Johnson graphsχ_i(J(t,m))=m(t-m+1); When n≡0(mod 4), k is an odd number, incidence chromaticnumber of generalized Petersen graphs is 4; When n≡0(mod 4), k = 2,4; incidencechromatic number of generalized Petersen graphs is 5.
本文从图的结构性质出发,利用归纳法和反证法研究了Johnson图以及若干广义Petersen图的关联着色,得到:Johnson图的关联色数χ_i(J(t,m))=m(t-m+1);当n≡0(mod 4),k为奇数时,广义Petersen图P(n,k)的关联色数χ_i(P(n,k))=4;当k=2,4时,广义Petersen图P(n,k)的关联色数χ_i(P(n,k))=5。
3.
The Johnson graph J(n,k) is defined as follows:Let n and k be fixed positive integers with n≥k,andΩa fixed set of size n.
Johnson图J(n,k)的定义如下:设n,k是固定的正整数且满足n≥k,Ω是大小为n的固定的集合,那么J(n,k)的顶点集由Ω的所有k元子集组成,两个顶点相邻当且仅当这两个顶点对应的k元子集的交的大小为k-1。
2) Johnson-cook Model
Johnson-cook模型
1.
The results of this experimental work were used to define a new set of material constants for the strength component of the Johnson-Cook model for 20# steel.
根据材料在不同应变率下的试验结果,拟合了Johnson-Cook模型中的材料常数,并修正了应变率强化系数C,确定了20号钢的Johnson-Cook本构关系。
2.
The traditional Johnson-Cook model was.
对Johnson-Cook模型进行了修正,考虑了冲击过程中绝热温升引起的软化效应。
3.
The Johnson-Cook model and the gradient-dependent plasticity were used to investigate the width of adiabatic shear band (ASB) and the strain rate effect of Ti-6Al-4V.
通过引入与Batra及Kim类似的论点,将绝热剪切带宽度定义为绝热剪切带的中心区域的宽度(w5%),在该区域上温度比其峰值小5%,利用Johnson-Cook模型及梯度塑性理论分析Ti-6Al-4V绝热剪切带的厚度及应变率的影响。
3) johnson model
Johnson模型
4) Johnson criteria
Johnson准则
1.
Ascribed to the explanation for TIP theoretic evidence,the essential difference from the Johnson criteria is the proposed definition called system contrast threshold function and the integral strategy to all valid fre- quency spectrum perceptive on eye.
通过阐述TTP建模的理论依据,解释了它相对于Johnson准则的本质区别,主要在于系统阈值对比度概念和对被人眼感知的所有有效频率的积分。
5) Johnson's rule
Johnson法则
6) Johnson algorithm
Johnson算法
1.
Introduces Johnson algorithm:an effective algorithm under special circumstance for pipeline problem.
文中介绍了特殊情况下流水线调度的有效算法:Johnson算法;对于一般情况,介绍了两种启发式算法:CDS算法和Palmer算法。
补充资料：图的减缩图(或称图子式)
图的减缩图(或称图子式)
minor of a graph
图的减缩图(或称图子式)【.皿以ofa脚户;MHHoPrpa中a」【补注】设G是一个图(graph)(可以有环及多重边).G的一个减缩图(nullor)是从G中接连进行下述运算而得的任何一个图: i)删去一条边; 五)收缩一条边; 说)去掉一个孤立顶点. NRobe由on与P.D.Se脚aour的图减缩定理(脚Ph nl的。r theon习11)如下所述:已知有限图的无穷序列G，，GZ，…，则存在指标i
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条