椭圆形的

Based on the laminate theory, a laminate weakened by damage is treated as an anisotropic thin plate. Using the complex potential method in the plane theory of elasticity of an anisotropic body, the series solution of finite anisotropic thin plate containing an elliptical inclusion is proposed with the help of Faber series. A hybrid element with an elliptical inclusion for anisotropic materials is obtained by using the hybrid variable principle, and the element efficiency is verified by numerical examples. The state of the damage is modeled by an elliptical soft inclusion, and using the point stress criterion based on characteristic curve and Yamada-Sun etc. criteria, the prediction of the strength of a composite laminate with damage is set up. The effects of various parameters on the stress distribution and the residual strength of a composite laminate weakened by damage are detailedly studied.

首先基于经典层板理论，将复合材料层板的弹性问题化归为均匀各向异性板来求解；采用各向异性体平面弹性理论中的复势方法，以Faber级数为工具，给出了有限大含椭圆核各向异性板弹性问题的级数解形式；利用杂交变分原理，成功导出含椭圆核各向异性板杂交应力有限元，并用算例验证了该单元的可行性和有效性；采用含刚度折减椭圆形弹性核的冲击损伤模型，引入基于特征曲线和Yamada-Sun破坏准则的点应力判据，建立了含损伤复合材料层板剩余强度的分析方法；通过数值计算详细讨论了各种几何参数对损伤层板应力分布、剩余强度的影响，得到了一系列对工程应用具有实用价值的结论。

Breed of hound dog known for being destructive and causing mischief if left alone and for almost never barking; often described as deerlike because of its grace and speed while hunting; coat is short, smooth, and fine textured and can be red, black and tan, or black (any of which may have white markings as well); large, erect ears are set far forward on head and may be slightly hooded; short tail curls tightly over rump and is sometimes tipped with white; deeply furrowed brow is a distinctive feature of the breed; eyes are oval-shaped and dark hazel or dark brown; adult stands 16 17 in.(41 43 cm) tall at shoulders and weighs 22 24 lbs (10 11 kg); sometimes called Congo dog because the pair that gave rise to the first known Western litter were imported from the Congo into England in 1936; cleans itself fastidiously, much like a cat; tends to have an aloof demeanor; prized by the pharaohs of Egypt as hunting dogs and adopted by the tribes of the Congo much later; called African bush dog by the English because British explorers first found this dog wandering in the African bush.

巴辛吉小猎犬是一种产于非洲大陆的小猎犬品种，以其具有破坏性和孤独时的调皮捣蛋以及几乎从来不吠叫而著名；当它进行捕猎时，因为它的速度和优美的风度而经常被形容成鹿；皮毛短而光滑，有着很好的质感，有红色，黑色，黄褐色（任何颜色中都混有白色的标记）；大而坚挺的耳朵距离较远地分布在头部两侧并轻微地往前罩盖；短小的尾巴紧凑地卷曲在臀部上方，部分巴辛吉小猎犬的尾部顶部呈白色；脸部眉部有深深的皱纹也是品种与其他品种的区别；眼睛深褐色或者深棕色呈椭圆形；成年巴辛吉小猎犬站立肩高41—43公分，体重22—24公斤；有时候也被称为刚果狗，因为第一对巴辛吉小猎犬于1936年从刚果引入英国；巴辛吉小猎犬经常一丝不苟的清理自己，有些像猫；具有冷漠的举止；作为猎犬曾受到埃及法老的赞扬，之后为刚果部落所使用；当它首先被英国探险者在非洲灌木丛中发现时被称为非洲灌木狗。

Morphological conversion from spiralto coccoid forms occurred when HP was cultured with selenium and most of coccoid forms had fragmentary flagella and pilus; the effection of selenium to activity of urease, catalase, alkaline phosphatase is not exist or not evidence; selenium enable pET32a-vacA-E.coli BL21 which can express VacA produce yellow lipochrome, and the color become deeper with increasing of concentration of selenium; selenium can decrease expression of recombined VacA by restrain the growth of pET32a-vacA-E.coli,but can not influence activity and gene sequence of VacA; selenium can enhance the suppression effect of recombined VacA for gastric cancer cell, depress the index of cell multiplication and the forming rate of colony, decrease the number of cell in S period, increase total of cell in G period; After purified, the recombined VacA can be identified by VacA antibody.

体外实验结果表明：一定浓度的硒作用HP后，HP菌落数量随着硒浓度的增加而减少，菌落颜色由灰白色变为砖红色，溶血现象随硒浓度的增加和作用时间的延长而逐渐消失，HP的形态由弯曲形变为球形或椭圆形，鞭毛及菌毛出现脱落现象；硒对尿素酶、过氧化氢酶、碱性磷酸酶活性无影响或影响不明显；一定浓度的硒能使表达VacA的pET32a-vacA-E.coli BL21工程菌产生脂溶性砖红色色素，颜色随硒浓度增加而加深；一定浓度的硒通过抑制pET32a-vacA-E.coli BL21工程菌的生长，减少重组VacA表达量，但不影响其空泡毒活性及编码基因序列；纯化后的VacA重组蛋白可被VacA抗体识别，具有良好的抗原性。

The purpose of this thesis is to use finite element software ANSYS to analyze the mechanical behavior of thin-walled SUS304 stainless steel tubes with elliptic-notched subjected to curvature-controlled symmetric cyclic bending. The mechanical behavior contains the relationship among curvature, bending moment and ovalization. There are two kinds of the elliptic-notch.

本研究是以有限元素分析软体ANSYS 分析SUS304 不锈钢椭圆形凹槽薄壁圆管承受对称曲度循环弯曲负载下的力学行为，其中力学行为包含有曲度、弯矩及椭圆化的相互关系，而椭圆凹槽分为两种，一种为固定凹槽的深度，并改变凹槽的宽度；另一种为固定凹槽的宽度，并改变凹槽的深度。

Leaf sheaths longer than internodes, glabrous or pilose, one margin ciliate; leaf blades linear, 11–20 cm × 2–5 mm, glabrous or pilose, margins scabrid, apex finely acuminate; ligule ca. 0.5 mm. Panicle loosely contracted, narrowly elliptic in outline, 10–17 cm; central axis and branches scabrid-hispidulous; branches narrowly ascending, 3–6 cm, loosely spiculate; pedicels scabrid.

节间的叶鞘长于，无毛或具柔毛，一边缘具缘毛；叶片线形，11-20厘米×毫米，无毛或具柔毛，粗糙的边缘，好渐尖的先端；大约0.5毫米圆锥花序的叶舌松弛收缩，轮廓的狭椭圆形，10-17厘米；粗糙主轴线和分枝具短硬毛；狭上升的分枝，3-6厘米，松弛细刺；花梗粗糙。

However, from the view of the structure and shape of the Orbal oxidation ditch, the round or ellipse tri-ditch type may be difficult to plane layout for the engineering with narrow land locations; the independent sedimentation tank occupies relatively large area of land; central island counts some areas which enlarges inefficient land demand; and the backflow of sludge and nitrified water from the sedimentation tank relies on dynamic system, which increase the cost of construction and operation.

但就奥贝尔氧化沟的工艺构型来看，三沟道的圆形或椭圆形沟型对于狭长的工程选址地来说，平面布置相对困难；而且奥贝尔氧化沟需要独立的二沉池，占地较大；中心岛消耗一定的面积，增加了无效占地；另外，二沉池的污泥回流依靠动力回流，增加了基建和运行费用。

But above and beyond this, the space itself merits at-tention for its size (an enormous ellipse whose greatest di-ameter measures 240 m.) and the brilliant project by Gian Lorenzo Bernini whose scope was that of singling out this square from all others throngh the use of the imposing porticoes.

但是，除了这一点，空间本身的是非曲直，张力的大小（一个巨大的椭圆形，其最大的双参数措施240米）和灿烂的项目吉安路易洛伦佐·贝尼尼的范围是，挑出这个广场从所有其他throngh使用实行柱廊。

Leaves variable, those on previous year's branches usually alternate, those on short branches approximate and often fascicled; petiole 1–2(–3) cm, glabrous, with 2 to 4 nectaries at apex or at base of leaf blade; leaf blade lanceolate to elliptic-lanceolate, 3–6(–9)× 1–2.5 cm, slightly pilose when young, glabrescent, base broadly cuneate to rounded, margin shallowly densely serrate, apex acute to shortly acuminate.

易变的叶，那些在通常互生的第二年分枝上，那些在短枝紧靠和通常簇生上；叶柄1-2(-3)厘米，无毛，具2在4蜜腺在先端或叶片的在基部；叶片披针形的到椭圆形披针形， 3-6(-9)* 1-2.5 浅的幼时的厘米，稍具柔毛，后脱落，基部宽楔形到圆形，边缘浓密有锯齿，先端锐尖到短渐尖。

The A4 rocket motor was the first design that successfully moved large volumes of fuel to the combustion chamber using gas-turbine driven fuel pumps. The gas-turbine was powered by hydrogen peroxide, of which 130 litres were contained in the small ellipsoidal tank.

V2里的—A4火箭推动器的成功设计是其能在很短的时间能将大量的燃料送往燃烧室。130升的小椭圆形油箱提供的过氧化氢推动的燃气涡轮机输送燃料是主要的关键设备。

Avebury Manor of July 15, 2008 reminds us that the Mayan Long Count calendar will end on December 23, 2012: by showing precise orbital locations for all nine planets of our solar system on that date, plus an accurate elliptical orbit for Pluto

埃夫伯里庄园的2008年7月15日提醒我们，玛雅长的计数日历将於2012年12月23日结束：显示我们在那个日期的太阳系所有九个行星的精确轨道地点，加上准确的椭圆形轨道的冥王星

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。