腔形成

The results indicate that: the cavity radius becomes stable at approximately 6000μs;the blasting pressure waves mainly are transmitted horizontally;the peak pressure has a negative logarithm relationship with distance perpendicular to the charging bisector;and the valid influence area r.

应用ANSYS/LS-DYNA有限元程序对条形装药黄土地基中爆炸过程进行了三维数值模拟，发现在6000μs爆炸空腔已基本稳定，条形装药爆炸产生的压力波以水平方向传播为主，装药中垂线方向爆炸产生的峰值压力与离中垂线距离呈负对数关系，土的有效影响范围半径大约为爆炸后形成的空腔半径的4倍。

Moreover, the inner cone has the characteristic of Lewis basis with high electron density because of the lone-pair electrons of oxygen atoms stretching towards it and can form inclusive compounds with varied compounds. The special structure of CD is very important to separate and analyze enantiomers, which has become the most important mainbody of super-molecular chemistry and greatly improved the developments of bioscience and pharmaceutical chemistry.

环上具有多羟基，具有亲水性。O原子的孤对电子朝向内腔，使内腔具有高的电子密度，具有Lewis碱的特征，能和多种化合物形成包合物，这种结构因素在手性识别上起作用，目前它已经发展成为超分子化学最重要的主体，对促进生命科学和药物科学的发展具有重大意义。

All iliac hone graft fused well and a great deal of bony callus was found the vertebral body surface. Lucency area was in seen surrounding the hone graft, titanium and AC-AFF on the X-ray films, and there wan new bone formation in the interface of internal union and bone. The central region of titanium and AC-AFF became vague and new bone formation was found in the intracavitary aim of implants by CT scan. And port of the new hone transited the parietal reticulation and connected with normal ones at titanium and AC-AFF.

髂骨植骨组融合情况良好，融合界面上有较多的骨痂生成。X线摄片见植骨块、钛网、AC-AFF中空区域模糊且有骨组织生长，内植物周围无透光带存在，植骨界面上有骨桥形成；CT扫描在钛网及AC-AFF组可见内植物腔内形成的新骨通过其四壁的网眼结构与周围骨质相接，说明所有标本均达到骨性融合，但其中以AC-AFF组形成的新骨数量为多，且较为成熟。

There formed segregating cavities between spermatocyte cell-wall and spermogonium cell-wall and osmiophillic layers outside spermatocyte cytoplasmalemma, which indicated that the spermatocytes had begun to gradually break away from the male gametophytes and embark on independent development.

精母细胞与精子器的璧细胞之间形成了分离腔，在精母细胞质膜外形成了嗜锇层，这些结构的形成说明精母细胞已经开始与雄配子体逐渐分离，进入独立发育的阶段。

MAIN OUTCOME MEASURES: Adjusted rate ratios for all first time deep venous thrombosis, portal thrombosis, thrombosis of caval vein, thrombosis of renal vein, unspecified deep vein thrombosis, and pulmonary embolism during the study period.

主要观察指标：研究期间全部首次深静脉血栓形成、门静脉血栓形成、腔静脉血栓形成、肾静脉栓塞、非特异性深静脉血栓形成和肺栓塞调整比率。

At 4 weeks following implantation, cells on the surface of coralline hydroxyapatite were found and connective tissues were seen in the material pores in the experimental group. Cells on the coralline hydroxyapatite were observed only in the control group. At 8 weeks, new bone formation was detected on the surface of coralline hydroxyapatite; bony tissue deposition and a few chondroid tissues were found in the pores or surrounding the pores in the experimental group. A few fibrous connective tissues were observed in the control group. At 12 weeks, abundant mature woven bone was detected on the surface of coralline hydroxyapatite; medullary cavity-like structure and vessels were found in some regions in the experimental group. No new bone or bony tissues were found in the control group.

植入材料后4周，实验组可见珊瑚羟基磷灰石表面有细胞生长，孔隙内有结缔组织长入；对照组仅见珊瑚羟基磷灰石表面有细胞生长。8周时珊瑚羟基磷灰石表面有新生骨形成，孔隙内和孔隙边缘可见骨样组织沉积和少量软骨样组织形成；对照组仅见少量纤维结缔组织长入。12周时珊瑚羟基磷灰石材料表面有较多成熟编织骨形成，部分区域可见髓腔样结构形成，并有血管长入；对照组仍未见新骨及骨样组织形成。

The expressions of VEGF mRNA in renal cortex in B and group C increased greatly compared with A group at 8th week(P.01), And the expression was decreased more in C group than that in B group at the 8th week;④The light microscopes results showed that no pathological changes in group A; pathological changes were much obvious in group B:glomerular capillary lumen tumbling,lumens blocked,mesangial region widened,basal lamina thicking,mesenterium base inceased,the volume of glomerulus become large,cell population increased,renal tubule vacuolization, renal interstitium was infiltrated by lots of lymphocyte and mononuclear macrophage; pathological changes in group C was light,only see glomerular capillary lumen lightly stegnosis,few lymphocyte infiltrating.

免疫组化结果显示第8周B组大鼠肾皮质VEGF蛋白含量较A组显著增加(P.01)，C组VEGF含量较B组有明显减少(P.01)，C组较A组表达量仍然增加(P.01)；③第8周B组肾皮质VEGF mRNA表达较A组有明显上调(P.01)，与B组相比，辛伐他汀可以明显减少C组肾皮质VEGF mRNA表达；④光学显微镜下A组肾小球毛细血管腔均匀一致，无狭窄，肾小管-间质无炎症细胞浸润。B组则病变较明显：大鼠肾小球毛细血管袢塌陷，管腔闭塞，系膜区增宽，基膜增厚和系膜基质增多，肾小球体积增大，出现玻璃样变；肾小管尤其是近区小管肿胀、变性、空泡形成，肾间质可见大量淋巴细胞和单核巨噬细胞浸润。C组病变较轻，可见肾小球毛细血管管腔轻度狭窄，肾小管-间质见少量淋巴细胞浸润。

Results indicate:(1) The newly developed simulation technology can form fairly average and easily controllable back pressure downstream the inlet, so it can he used to investigate the back pressure characteristics of hypersonic inlets.(2) By regulating the valve of injection pipe, the simulation technology can realize the switch of hypersonic inlet started state and unstarted state in about 8 milliseconds, so it is suitable to investigate the starting/unstarting/resarting problem of hypersonic inlets.

结果表明：(1)所提出的凹腔喷流技术可在进气道下游形成较为均匀的、可控的背压环境，因此可用于进气道的反压特性研究；(2)适当调节凹腔的喷流总压，并在实验中实时控制阀门的开度，凹腔喷流技术能够在较短的风洞实验时间内（约8s）实现进气道起动、不起动、再起动流态之间的切换，因此可用于进气道的不起动／再起动特性研究。

When a sudden power failure or accident or normal pump stops when the pump stops, the valve inlet water velocity to reduce stress Agency, the valve plate also fall, when its velocity is zero (that is, inlet flow rate is zero Department), large valve plate because of its own gravity and rapidly turn off (time 3s ~ 5s), the majority of water to prevent backflow, when the valve before and after the formation of a water pressure, water stress, on the one hand through the small valve at the bottom of the three slot for pressure relief vent pressure. 4 water stress from the bypass tube into the cavity patch up the control room (this process for the suction pressure chamber that can effectively absorb the energy of water), when water stress on cavity than inferior vena cava, the pressure of water promote the diaphragm down mobile , the current cavity pressure of water being squeezed out all the small valve plate slowly drop back to standby status, the process time to ease closure adjustable (3s ~ 150s), then the valve has been fully closed, watertight.

当突然停电或事故停泵或正常停泵时，阀门进水口处压力水流速降低，大阀板也随之下降，当其流速为零时，大阀板由于自身重力而迅速关闭（时间3s～5s），可防止大部分水倒流，此时阀门前后形成一种水压差，压力水一方面通过小阀板底部的三条泄压槽进行泄压。4）压力水从旁通管进入膜片控制室上腔（此过程为吸压腔，能有效吸收一部分水能量），当上腔压力水大于下腔时，压力水推动膜片往下移动，当下腔压力水全部被挤出来时，小阀板缓缓下降，恢复到待机状态，此过程中缓闭时间可调节（3s～150s），届时阀板已全部关闭，滴水不漏。

The author considers that the form of the instrumental music structure came from special opera shape in Shangdang area and its act with five tune-patterns together in the same platform, it is also due to the Shangdang phonic criterion in Yongzheng government of Qing dynasty, which objectively shaped its system and scale, and meanwhile accelerate its growth and creativity. Shangdang instrumental music absorbed broadly t...更多he instrumental music on experience of Kun opera, Luo opera, Juan opera and Huang opera on basis of instrumental music on the local tune, which contains with diversity, and generally became of the art matrix of Shangdang folk music and opera melody.

本文认为：上党梆子器乐结构的形成，主要来自上党地区独特的戏曲生态和五种声腔同台共演的历史经验；特别是清代雍正年间国家政策对上党八音的规范，客观上引发了上党梆子器乐在体制和规模上的定型，也促进了上党梆子器乐在此基础上不断发展、创新；上党梆子器乐是在梆子腔器乐结构基础上，广泛吸收了昆腔、罗腔、卷腔、簧腔在器乐结构中的经验，由此兼容并包，逐渐成为集上党民间音乐和戏曲音乐大成的音乐艺术母体。

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。