向内

This thesis demonstrates the pre-polymers in a polymer-dispersed cholesteric liquid crystals can be polymerized into a polymer film, which can eliminate the aligning capability of the homogeneous alignment layer. Thereafter, the textures of the cholesteric liquid crystals in UV-cured region can be changed from reflective planar texture to the scattered focal conic one. Additionally, the clearing temperature of the liquid crystals can be reduced by doping with chiral dopant or monomers. The cause is the increase of the impurity concentration in LCs. In other words, if the monomers are polymerized, the clearing temperature of LCs in that region should increase due to the decrease of the impurity concentration. Therefore, impurities associated with doping with monomeric and chiral dopants cause the clearing temperature of LCs in cured region to differ from that in uncured region.

本文中，我们提出在高分子聚合物薄膜之胆固醇液晶(polymer-dispersed cholesteric liquid crystals，简称PDCLCs)中，利用紫外光使PDCLC中的单体聚合成薄膜，此即为光引致聚合反应，而该薄膜将原本在表面所作的配向膜覆盖且破坏其配向能力，使胆固醇液晶由原本反射的planar结构转换成散射的focal conic结构；另外，有关液晶材料的相变温度会由於掺杂手性分子或单体而降低，此因液晶材料内『杂质』浓度增加，而造成的液晶材料之不纯度增加，最终导致相变温度降低，若搭配上述光引致聚合反应，则由於光照区之单体聚合，使该区域单体占总材料之比例下降，即不纯度降低，进而使液晶材料之相变温度上升，该区域之相变温度与未照光区有所不同。

The long and short corridors facing outside meet at the north end, with the best views facing the highest and best-preserved hill of the entire campus, like two streets leading up to a plaza, or the two wings of a boat meeting at the foredeck.

单侧外走廊在首二层是朝着内院的，在三四层则向外侧开放，面向外侧的走廊一长一短，汇聚在景观最好的北端，犹如两条街道汇聚在一处广场，又如船的左右舷汇聚在船头甲板，面对着整个校区内最高也是保留得最为完整的一个山头。

The early granite was produced by the tectonic transition from compression to intraplate extension on the western margin of the Yangtze block, whereas the late granodiorite was formed in an intraplate setting and might be related to the Neoproterozoic plume event.

早期的花岗岩形成于扬子地块西缘由会聚挤压向陆内伸展的转折环境，晚期的花岗闪长岩形成于板内环境，很可能与新元古代地幔柱事件有关。

It is proved that the problem of determining whether there is a Hamiltonian path from a specified vertex s to another t on a given digraph can be reducible at polynomial time to the problem of constructing a minimum spanning flow in a two-terminal extended network Ns,t, with the unit capacity for all arcs.

在此基础上，利用网络最小生成流的概念提出了一个修正模型，并证明了无环最小生成流问题可以在多项式时间内转换为哈密顿圈问题。文中最后指出，这一新的模型为解决在有向图内构造哈密顿轨的有效算法提供了一个新的思路和方法。

To calculate numerically the radiation of a enclosure within a heteromorphosis cavity, attention was focused on: how to decide the visibility between two surfaces, how to improve the old method of configuration factor computation, how to approximately and efficiently decide the radiation resource of directional, spectral radiation in cavity.

讨论了解决异型封闭腔辐射几何学问题的几种方法：异型封闭腔内，表面间可见性的判断方法；优化异型封闭腔角系数计算的方法；确定异型封闭腔内定向辐射的壁面辐射源的方法。计算了两种结构喷管封闭腔内的角系数，并从角系数的互换性和完整性定理验证了方法的正确性和有效性，为异型封闭腔的辐射计算解决了几何问

It is foolish for a forty-year-old to ask Hippocrates for health,and even more foolish to ask Seneca for wisdom.

人到四十还要向医圣希波克拉底要健康，真是愚蠢的很；若还要向塞内加要智慧，就更愚蠢了。

At last, the experiment of tube hydroforming was carried out in the guidance of the theory analysis. Experimental results of different load path are presented and the rule of the effect of internal pressure and axial force are studied. Based on the experiment, the basic rule of load control method is also discussed.

在分析的基础上，本文还完成了不同的轴向力和内压匹配作用下管坯内高压成形过程的实验工作，得到了不同工艺参数对零件成形的影响规律，还在实践的基础上提出控制加载的基本原则。

An analytical model was built up on the jet deflection in the crossflow by applying the theorem of momentum, which takes full account of mixing between the upstream fluid and burner jet, and of the total pressure difference between the two sides of the jets. Through analysis of this model, experimental study and numerical simulation, effects of the nozzle spacing ratio, width of the furnace corner, width of the nozzle and imaginary circle diameter on the aerodynamic field in the furnace were obtained.

本文综合考虑了炉内旋转气流与燃烧器射流的混合和燃烧器射流向火侧与背火侧的全压差等因素，应用动量定理建立了横向气流中射流偏转的分析模型，并结合冷态模化试验和数值模拟计算，得到了燃烧器间隙率、炉膛切角、喷口宽度和假想切圆直径等因素对炉内空气动力场影响的规律。

Planting bar used syringes from the bottom of the hole to put adequate amounts of external uniform adhesive filling injection hole, pay attention not to air hole inclose.

使用植筋注射器从孔底向外均匀地把适量胶粘剂填注孔内，注意不要将空气封入孔内。

On the basis of interior ballistics of gun and relating to the properties of theprojection structure of the pilotchair,the interior ballistic model of the twostem projec-tion structure is investigated in this paper.

该文在枪炮内弹道的基础上，结合航空座椅弹射机构的特点，对两节筒弹射机构的内弹道模型进行了探讨，并对向上弹射和向下弹射均作了考虑，经对几种制式弹的计算，结果都十分理想

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。