| 1. | The first order transition has relation to the bistable state
一级转变和双稳态相联系。 |
| 2. | Second - order transition
二级转变 |
| 3. | The threshold strength and the saturation strength are calculated for the first order transition
同时计算了相应的阈值场强和饱和场强。 |
| 4. | The results are compared with the ols ' s results ( supposing the two transition be the second order transition ) and all results are plotted in the same figure
作为比较我们把slo结果(假定两次转变都为二级转变)和我们的结果画在同一图上。 |
| 5. | In the condition of second order transition , expressions of threshold and saturation field strength are deduced , the relations between the expressions and the parameters of lc cell including anchoring energy are calculated in detail and the tendency is expressed
在二级转变的条件下导出阈值场强和饱和场强的表达式，详细计算了它们与液晶盒参量包括锚定能参量的关系，得到它们的变化趋势。 |
| 6. | The director in nlc cell may be expressed by one angle parameter 9 or , and it is called one dimension problem ; the director expressed by two angle parameters 6 and , called two dimension problem ; the paper consists of two absolute parts : l . the first order freedricksz transition at saturation point for the weak anchoring nlc cell the first order freedricksz transition ( the first order transition ) at threshold point has been studied by a lot of theoretical works
液晶盒内指向矢可用一个角量或表示称为一维问题，需要用两个角参量和表示称为二维问题。本文由两个独立的工作构成： 1弱锚定向列液晶盒在饱和点的一级freedericksz转变现有的理论工作都讨论在阈值点的一级freedericksz转变(一级转变) 。 |
| 7. | The results indicate : when reduced anchoring strength a is large and = 0 or > 0 , the first order transition may occur at threshold point or at saturation point ; when a is very lager and = 0 and > 0 , the uniform twisted solution jumps directly to the saturation solution
结果表明：当反映锚定强度的参量( = k _ ( 22 ) ? al )较大，且修正参量= 0或0时，在阈值点或饱和点可以发生一级转变。当很大，且修正参量= 0或0时，还会发生均匀扭曲解直接转变为饱和解。 |
| 8. | We think the value of anchoring strength and the sign of modified parameter of anchoring energy should not be regarded as determinant when we distinguish between the first order transition and the second one , otherwise we also explain the accurate condition of first order transition in non - symmetric cell and point out the essence of it
讨论了饱和点的一级转变问题，验证上、下基板锚定强度相同的液晶盒系统的一级转变条件同样适合不对称盒系统，通过实例证明锚定强度的大小及锚定能修正系数的正负不能作为区分一级或二级转变的参考条件。 |
| 9. | The " allowed " electric dipole ( el ) transitions will encounter strong competition from " forbidden " transitions , i . e . magnetic dipole ( ml ) , electric quadruple ( e2 ) and other higher order transitions , the transitions rates for the forbidden decay scale with higher powers of z than those of el transitions , the effects of quantum electrodynamics ( qed ) also scale with higher power of z . accelerator - based beam - foil spectroscopy ( bfs ) is an important method for spectroscopic studies of highly ionized atoms
在高离化态原子中，磁相互作用明显增强， “允许的”电偶极( e1 )跃迁将遭到来自磁偶极( m1 ) 、电四极矩( e2 )和其它高次的“禁戒”跃迁的强烈竞争，禁戒跃迁几率随核电荷数z增加而迅速增加，此外量子电动力学效应也随着z增加而增强。 |
