内腔

METHODS: Puncture with the needle retaining in the cavity of knee of normal adult corpse without effusion or pneumatosis was performed, and 1, 5, 10, 15, 20, 30, 40 mL contrast-medium was injected into the cavity. Coronal section, vertical plane and transect were scanned with T2WI, 4 mm thickness and 1 mm interval by MRI.

对10件无积液、积气、结构正常的成人尸体膝关节腔内穿刺留针，通过穿刺针向关节腔内依次注入1，5，10，15，20，30，40 mL对比剂，分别于每次注射后行冠状面、矢状面、横断面T2WI，厚度4 mm，间距1 mm，MRI扫描。

Result: the clinical therapeutic effectof experimental group, was more significant than control group who only underwent external radiation or afterloading intracavitary radiotherapy ,and the adverse reaction of control group exe; the radiation proctitis was more significant than experimental group; compare,58 cases in the experimental group complete the radiotherapy successfully.

结果：58例直肠癌病人采用外照射加后装腔内放疗的治疗效果优于单纯外照射或后装腔内放疗，其临床不良反应，特别是放射性直肠炎，较单纯外照射明显。实验组通过中药保留灌肠清洁肠道、温水坐浴等整体护理，不良反应较未采用整体护理的对照组明显减少， 58例病人均能按计划完成放射治疗。

The options of treatment for abdominal aortic aneurysm include traditional procedures and endovascular aneurysm repair.The reintervention rate is higher in EVAR than in traditional procedures.

腹主动脉瘤传统手术及腔内修复术后的再手术应根据不同原因采取相应策略，腔内修复较传统手术有较高的再次干预率。

Based on the laser longitudinal mode splitting theory, a novel scheme of dual-frequency laser with large frequency-difference is presented using electrically controlled birefringence of liquid crystal, and the transmitted resonant mode splitting by birefringent of Fabry-Perot etalon has been analyzed theoretically. A new element of liquid crystal Fabry-Perot etalon is designed and fabricated, which serves as aselector and splitter of both laser longitudinal modes and Fabry-Perot etalons transmitted resonant modes. Two different experimental systems of laser-diode end-pumped Nd:YAG laser have been set up using two different LDs, and the transmission of liquid-crystal cell have been measured. When the empty LCFP is inserted in the cavity of high-power LD pumped Nd:YAG laser, the oscillation of a single laser longitudinal mode have been observed, such a result shows that the designed and fabricated LCFP element is capable of selecting single axial mode. While an anti-reflected liquid crystal cell is inserted in the cavity of Nd:YAG laser end-pumped by the high-power LD, it is difficult to confirm weather the laser longitudinal modes have been spitted or not. The subject is summarized in this thesis and the improvement of the project has been presented.

论文以激光纵模的分裂理论为基础，提出了可望获得几十GHz甚至上百GHz的液晶电控双折射双频Nd：YAG激光器的总体方案，并对用双折射效应分裂F-P标准具透射谐振模进行了理论分析；设计并加工了一种集激光纵模选择、激光纵模分裂和F-P标准具谐振透射模分裂于一体的多功能元件——液晶电控双折射F-P标准具；建立了两种不同功率激光二极管端面泵浦的Nd：YAG激光实验系统，并对液晶盒的透射性质进行了测试；将未灌注液晶的空液晶F-P摘要标准具插入大功率LD泵浦Nd：、叭G激光谐振腔内，观察到了单纵模激光输出，说明所设计和加工的液晶F一P标准具具有纵模选择能力；将镀有增透膜的液晶盒插入大功率LD泵浦Nd八7AG激光谐振腔内，是否产生了激光纵模分裂现象还难以确定。

Methods: Histology and immunohistochemistry were performed to detect the expression and localization of HSP27 protein in dissected thoracic aortas and normal controls. Western Blot was used to invalidate its expression.

随着腔内血管外科理论和技术的发展，TAD的治疗已经取得了较大的进展，部分TAD患者已从传统的开放性开胸人工血管置换术转向微创的腔内隔绝术［2］，降低了病死率及各种手术并发症率。

Methods: Histology and immunohistochemistry were performed to detect the expression and localization of HSP27 protein in dissected thoracic aortas and normal controls. Western Blot was used to invalidate its expression.

随着腔内血管外科理论和技术的发展，TAD的治疗已经取得了较大的进展，部分TAD患者已从传统的开放性开胸人工血管置换术转向微创的腔内隔绝术［2］，降低了病死率及各种手术并发政率。

The intraluminal pH is 4 to 5 in the duodenum but becomes progre ively more alkaline, a roaching 8 in the lower ileum.

十二脂肠腔内pH值为4~5，管腔内pH值趋碱性逐渐增强，至回肠下部时pH接近8。

In this paper , on the basis of analyzing the complex swing characteri sties of the points on the plane of moving jaw , the reasonable mobile state of the crushing stone in crushing chamber are defined , and the methods for analyzing and computing the falling height of the each crushing layer and its packing density are presented .

本文在动腭齿面复杂摆动特性定量分析基础上，分析确定了物料在破碎腔内的合理流动状态，提出了腔内各物料层一次落料高度以及相应填充密度的分析和计算方法。

The method to record the position and intensity of absorption lines with the Fourier\|transform Intra\|cavity Laser Absorption Spectrometer is discussed.

介绍了使用连续扫描方式工作的傅里叶变换光谱仪来探测激光腔内吸收光谱的原理，并探讨了傅里叶变换激光腔内吸收光谱方法测量光谱谱线和强度的工作方式。

In the second part of of this thesis, we firstly derivate the operation condition of intracavity SHG of dualwavelength laser from the rate equation, and then numerically calculate the relationship between the laser operation parpmeters and the pumping powers. And then we discuss two possible ways to get balancing outputs of the harmonic waves of the two wavelengths. By comparing the two ways, we find that the method by increasing the geometrical factor of 1079. 5nm SHG has the higher efficiency than the method by adding the additional loss of 1079. 5nm basic wave. Besides, the first method is easier to realize in experiment than the second method.

本论文第二部分从速率方程出发，通过求解速率方程的稳态解得到了Nd：YAP腔内倍频双波长激光的连续运转条件，数值计算得到了随泵浦功率变化的激光运转情况；计算、分析了通过增加主波长的倍频耦合几何因子和增加主波长的腔内损耗两种方法获得均衡的双波长倍频输出的运转情况，通过二者的比较，发现增加倍频耦合几何因子的方法比增加损耗的方法效率更高，而且在实验上更易于实现。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。