crossing symmetry

This new form factor satisfies the crossing symmetry law of strongly interacting particle scattering amplitudes transfered from t-channel to s-channel or the inverse.

使用该形状因子的散射振幅具有从t道到s道或从s道到t道的交叉对称性。

With the problem that cross entropy can’t meet the symmetry criterion while measuring the difference degree of two random variables, the concept of symmetric cross entropy (SCE).

针对交叉熵用来度量两个随机变量的差异程度时不满足对称性的问题,提出对称交叉熵的概念。

Analysis of non-pair cross rolling force;

非对称交叉轧制轧制力分析

Analysis of the energy consumption of non-pair cross rolling;

非对称交叉轧制能耗特性分析

This paper presents the principle of non-pair cross rolling to control strip shape,analyzes the main factors which effect on strip shape and profile and works out cross-angle control model for non-pair cross rollin

介绍轧辊非对称交叉轧制控制板形的工作原理；分析影响板形与横向厚差的主要因素，导出了轧辊非对称交叉轧制交叉角控制模型。

A new and feasible method for synthesizing optically active(R)-(-)-and (S)-(+)-α-cur-cumene (1) via 6-methyl-5-heptene-2-magnesium bromide (5) asymmetric cross-coupling reac-tion with p-bromotoluene(4a) catalyized by chiral phosphine-transition metal complexes, in opticalyield up to 50%e.

本文报道了在手性膦过渡金属配合物催化下,以对溴甲苯(4a)与6-甲基-5-庚烯-2-溴化镁(5)经不对称交叉偶联反应合成(R)-(-)-和(S)-(+)-a-姜黄烯(1)的方法,光学收率分别为44％e。

Synthesis of (S)-(+)-Naproxen via asymmetric cross-coupling reaction;

利用不对称交叉偶联反应合成S-(+)-萘普生