体轴形成

1The axial evolution law on the structure and the aerodynamic characteristics of the asymmetric flows around slender bodies of revolution at incidences is summarized:whether the flow asymmetry is powerless or powerful,the flow always appears in the structure that lee-side vortices rise,and shed vortices form,and new lee-side vortices come into being alternately on opposite sides of a slender body of revolution axially from nose apex downstream to afterbody,and always induces the sectional side force of waving quasi-sinusoidally downstream axially.

1总结出细长旋成体有攻角非对称绕流流场结构和气动力特性的轴向演化规律：无论非对称性强弱，沿轴向从头部尖顶往后体，非对称绕流总是呈现为左、右两侧背涡交替从物面向上飘起、形成脱落涡、再衍生出新生背涡的流场结构，并诱导出沿轴向呈类似正弦曲线形式振荡分布的截面侧向力。

Thus spatial segregation of xNorrin activity in the animal pole is essential for correct germ layer formation in early embryos.

这些结果较好地解释了xNorrin，xFrizzled4和xLrp5/6不能在腹部诱导第二体轴形成的现象。

During embryonic development, many animals form a number of temporary structures along their anterior-posterior axis-somites. Cells in somites differentiate into sclerotome, which gives rise to vertebral column, dermatome, which gives rise to dermis, and myotome, which gives rise to skeletal muscle.

脊椎动物在胚胎发育的过程中沿身体前后轴形成一定数目的暂时性结构－体节，随着胚胎的继续发育每个体节分化成为生骨区、生皮区和生肌区，继而生成各种组织。

Many animals form a number of temporary structures along their anterior-posterior axis during embryonic development – somites. Cells in somites differentiate to form the sclerotome, the dermotome and myotome.

脊椎动物在胚胎发育的过程中沿身体前后轴形成一定数目的暂时性结构—体节，随着胚胎的继续发育每个体节分化成为生骨节，生皮节和生肌节，继而生成各种组织。

On the other hand, in spite of the severely distorted axis, the FoxD5-overexpressed embryos displayed neither somite nor muscle defects. Based on these results, we speculate that FoxD5 plays different roles in axis and somite formation. During somitogenesis, FoxD5 functions in the maintenance of the anteroposterior polarity of somites, and in turn plays roles in proper formation of somites.

另一方面，观察过量表现FoxD5的胚胎，发现体节及肌肉发育没有明显异常，但体轴发育则产生严重畸形的性状；根据上述观察结果，推测FoxD5可能在体节及体轴发育上扮演不同角色：在体轴发育时，FoxD5则可能参与於胚胎轴向决定；而在体节中，FoxD5具有维持体节前后极性进而促使体节正常形成之功能。

These data suggested that the centrin isoforms played different roles in different stages of spermatogenesis. The centrin-1 gene was revealed to be relevant to the centriolar translocation to the posterior pole of cell and the elaboration of flagellum during spermiogenesis, while the centrin-2 and centrin-3 might play roles in spermatogonial mitosis but were not involved in the spermatid differentiation process.

这些结果提示，Centrin同源基因在精子发生的不同阶段发挥不同功能，其中Centrin-1与精子细胞分化期的中心体后移、鞭毛的生成及精子中轴形成可能密切相关，Centrin-2和-3则可能在精原细胞有丝分裂中起作用，而与精子细胞变态分化无关。

A heavy duty tire comprises a tread portion, a pair of sidewall portions, a pair of bead portions each with a bead core therein, the bead core with an aspect ratio (HC 1 /WC) of from 0.43 to 0.58, and a carcass comprising a carcass ply of cords extending between the bead portions and turned up around a bead core in each bead portion from the inside to outside of the tire so as to form a pair of turnup portions and a main portion therebetween, the turnup portion comprising a turnup main-part extending along an axially inner surface, a radially inner surface and an axially outer surface of the bead core smoothly, and a turnup sub-part extending from the turnup main-part toward the main portion near the radially outer surface of the bead core.

本发明公开一种重载轮胎，包括：胎圈部分；一对胎侧部分；一对胎圈部分，每个胎圈部分中具有一胎圈芯，所述胎圈芯的高宽比(HC1/WC)在0.43到0.58范围内；以及胎体，其包括胎体帘布层，该胎体帘布层的帘线在胎圈部分之间延伸并且绕每个胎圈部分中的胎圈芯从轮胎内侧卷绕到轮胎外侧，而形成一对卷起部分以及位于该对卷起部分之间的主体部分，卷起部分包括沿胎圈芯的轴向内表面、径向内表面以及轴向外表面平滑延伸的卷起主部以及邻近胎圈芯的径向外表面而从卷起主部朝主体部分延伸的卷起子部。

Spinel is a compound of magnesia and alumina(Al2O3) and is thus a magnesium aluminate(MgAl2O4), found as accessories in igneous rocks, in metamorphosed aluminous schists, in contact metamorphosed limestones and sometimes in high temperature iore veins.

尖晶石主要成分是氧化镁和氧化铝，结晶习性是等轴晶系漂亮的正八面体。镁被铁置换就是铁尖晶石，被锌置换就是锌尖晶石，铁完全置换镁形成磁铁矿，铬置换铁尖晶石形成铬铁矿，这些类质同相的等轴晶系都是八面体结晶的尖晶石族矿物。

BACKGROUND: The HOX gene family is a highly conserved transcription factor family, which affects the formation of basic axis and secondary axis during embryonic development, at the same time, it plays a pivotal role in the development of the central nervous system, axial skeleton, stomach intestine, urogenital system and external genitalia.

背景：HOX基因家族是一个高度保守的转录因子家族，该家族在胚胎发育阶段基本体轴和次级体轴的形成中起作用，同时在中枢神经系统、中轴骨、胃肠和泌尿生殖系及外生殖器和肢体的发育中起重要作用。

During embryogenesis,the axial skeleton is formed by a process called somitogenesis, which produces transient segmental tissue known as somites.Disruptions in somitogenesis have been shown to result in vertebral malformations,including segmentation failure and formation failure.

在脊柱发育的胚胎期，形成一种重要的过渡性组织-体节，体节决定中轴骨的形成，已经证明体节发育受影响可导致脊椎畸形，包括脊椎形成障碍和脊椎分节不良。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。