观察孔

The closed-cell aluminum foam was fabricated by direct foaming in melt. Through sampling aluminum foam in different stages the cross-section of them were observed and analyzed. It was explained how TiH_2 was decomposed after entered into the melt, how initial bubbles were formed and what was the state that generated bubbles and undecomposed TiH_2 lay in.

以熔体直接发泡法制备闭孔泡沫铝材实验为基础，通过获得不同实验阶段的泡沫铝样品，以及对实验样品切面或断面进行观察和分析，描述了在熔体发泡法制造泡沫铝过程中TiH2加入熔体后的分解过程，原始气泡的形成方式以及产生的气泡和未分解TiH2的存在状态；解释了气泡进一步长大的原因和未分解的TiH2如何释放气体；表述了气泡的合并和无泡层的形成。

1H NMR spectra of benzene, cyclohexane and n -hexane and 2H NMR spectra of benzene -d6 absorbed on four charcoals with different pore structures were measured at various temperatures in the range from 297 to 195 K.

本文观察了吸附在四种孔结构活性炭中苯，环已烷和正已烷的~1H NMR和笊代苯的~2H NMR谱线在297～195 κ温度范围内的变化。

Methods: The hiatus area, the tickness of the crura and PEM were studied in 10 fetuses and 58 infants.

目的： 观察婴儿膈食管裂孔和膈食管膜的发育情况，探讨其在抗返流机制成熟中的作用。

Methods Based on Hamburger and Hamilton staging, chick embryos were selected.The formation of atrial septun and foramina secunda were observed with microdissection and SEM.

按Hamburger和Hamilton分期法，选用第20～26期鸡胚，用显微解剖术和扫描电镜方法，观察房间隔与第二孔的形态发生过程。

The pedicle screw in the right position had considerable artifact, which influenced the images of lateral spinal canal, foramina, nerve root, and posterolateral herniated disc.

正确植入的椎弓根螺钉伪影也较大，主要影响对邻近部位椎管侧方、椎间孔、脊神经和后外侧突出的椎间盘等结构的观察。

The effects of foaming agentand nucleating agents on the properties of pressure foamed samples were studied.

通过扫描电镜观察了可发性珠粒的泡孔形态，探讨了发泡剂、成核剂对珠粒密度的影响，测试了可发性珠粒模塑成型后的力学性能。

In this experiment, the optical microscope was used to observe and analyze that nickel-plated veneer and we found Nickel depositing in the cell cavity, ray, pit, tracheae, and fiber of timber.

通过对化学镀镍单板的光学显微镜观察和分析，化学镀镍的单板在木材的细胞腔和细胞壁上的木射线组织、纹孔、管胞、木纤维上都有金属镍的沉积。

In this project, the selection criteria of matrix and reinforcement for obtaining composites with high strength and toughness are determined. The as-cast and aged microstructures of composites reinforced with particles of different strength are observed, and their metallurgical conditions and stabilization mechanisms are analyzed. The aging precipitation behaviors and mechanisms are studied. Some characteristics of nano-materials (micro-distortion areas) are found in 150nm- Al2O3p/Al composites and their formation mechanisms are expatiated. The "flexible" restriction to the deformation of the matrix by low strength AlN particle is observed by in-situ TEM and SEM techniques, and the mechanisms of its resist on cracks propagation and its contribution to composite strength are revealed. The high temperature deformation behaviors of Al2O3p/Al composites are studied. A rare-earth coating is established on sub-micron Al2O3 particles, leading to an improvement in wettability between coated Al2O3 and liquid aluminum and a decrease in infiltration pressure. The strength and ductility of coated particles reinforced composite are also increased. The interfacial characteristics, bonding structures and their formation mechanisms are studied, and the crystal orientation relationships between reinforcement particles and aluminum matrix are investigated. Finally a lighter composite with better balance of strength and damping properties is reinforced with hollow ceramic microballoons of ultra-lower strength.

本项目发现了获得高强度和高韧性复合材料的基体、增强体选择依据；观察了各种强度质点增强复合材料的铸态和时效态微观组织，分析其微观结构形成的金属学条件及稳定性机理，研究了其时效析出规律和时效机制，发现了150nmAl2O3颗粒增强铝基复合材料基体中的纳米材料特征，并解释了其形成机理；利用TEM和SEM动态拉伸技术发现了低强度质点AlN颗粒对变形协调的&柔性强化&机制，揭示了其对裂纹扩展的阻碍作用和对复合材料高强度的贡献；研究了中强度质点的Al2O3颗粒增强铝基复合材料的高温变形行为，并对其进行了稀土界面层设计与制备，改善了颗粒与铝合金之间的界面润湿性，降低了复合材料铸造渗透压力，提高了复合材料的强、韧性；研究了多种复合材料界面结构及形成机理，确定了增强体与基体之间的界面结合机制，分析了复合材料界面处的晶体学位向关系；最后制备了含微孔的中空型陶瓷颗粒增强的特种复合材料，得到了强度和阻尼综合性能较好的轻质复合材料。

Experimental investigation on strongly separated flow in an annular compressor cascade ;2. The structures of separated flow, especially, vortices, inside an annular compressor cascade at large incidences have been studied baized on the flow visualization images obtained by means of Laser-sheet method and 7-hole probe measurement.

本文采用激光片光层加示踪粒子流场显示技术，观察和摄取了环形压气机叶栅在约十14大攻角下的内部流动图像；采用七孔气动探针测量了叶栅出口截面上的速度分布S通过对流场实验结果的分析，并结合本文第一部分中得到的叶片近壁区分离流结构，得到了该环形压气机叶棚中严重分离流场的分离流形态和旋涡结构。

Six and twelve boors after sepsis, leptin levels in liver homogenate were detected by radioimmunoassay serum alanine aminotransferase and 4 enzymes in liver homogenate. myeloperoxidase, glutathin-S-transferase, xanthine oxidase and superoxide dismutase, all related with synthesis of free radicals, detoxication and purine metabolism, were detected by 96 well spectrophotometry. H-E staining was used to examine the histopathologic changes of liver.

于脓毒症后6 h和12 h，采用放射免疫法测量肝组织匀浆液中Leptin水平，采用96孔分光光度法检测血清丙氨酸氨基转移酶及髓过氧化物酶、谷胱甘肽－S转移酶、黄嘌呤氧化酶、超氧化物歧化酶等4种与自由基合成、解毒和嘌呤生成代谢相关的酶的水平，同时以H-E染色法观察肝组织病理学改变。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。