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1)  Johnson's formula
Johnson公式
2)  Devine-Johnson operation
Devine-Johnson术式
1.
Objective:To recommend Improved Devine-Johnson operation which is a technique of improving in treating latent penis.
目的:推荐改良Devine-Johnson术式治疗隐匿型阴茎。
3)  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。
4)  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。
5)  johnson model
Johnson模型
6)  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。
补充资料:Johnson noise
分子式:
CAS号:

性质:又称约翰逊噪声(Johnson noise)。噪声的一种。当光电倍增管施加负高压,而无光投射光电阴极时,由于光电极极与倍增极的电子热发射和玻璃外壳与管座的漏电,导致热电子由倍增极放大,所引起的暗电流的波动。在记录仪器上则出现噪声。

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