成层

Methods A wet hip joint's sample from corpse was scaned by CT and all images of every cross-section hip joint's layer was obtained, and an hip joint's model was contructed with Unigraphics NX 2.0 and Solid Works 2006 SP 0.0 software. The models were assembled when simulated total hip arthroplasty after total hip joint prosthetic and ischiofemoral ligament model had been constructured. Analysis was done on von Mises stress distribution and amount of total hip component when simulated seated leg-crossing manuver. The bone and metal components were meshed as rigid bodies, composed of three-dimensional, all-quadrilateral rigid body elements, and hip joint capsule ligament was fully three-dimensional, hexahedral continuum elements representations. Results The current form of this ischiofemoral ligament's reconstruction finite element model provided for multi-body contact, large displacement interfacial sliding, large deformation capsule ligament representation, and clearly reflected the real ischiofemoral ligansent's anatomy and biomechanical behavior. The maximum on Mises stresses at the joint interface was more than that fur an otherwise identical hardware-only construct.

选择成人尸体髋关节行CT成像得到髋关节每层横截面图像，提取边界坐标，利用有限元分析软件Unigraphics NX 2.0和Solid-Works 2006 SP0.0构建出髋关节三维有限元模型及人工髋关节假体，并模拟全髋置换术进行装配，将坐股韧带按其术中重建位置进行构建骨骼与金属模型采用三维十节点四面体实体单元进行网格划分，关节囊六面体连接单元划分，模拟坐位腿交叉动作载荷获取假体撞击过程的角活动度和相应的von Mises应力分布情况结果所构建的多体连接、大界面划移、大变形的坐股韧带重建有限元模型，客观反映坐股韧带真实解剖形态及生物力学行为，增加坐股韧带重建的模型其关节面的最大主应力值大于仅有金属的模型。

That membrane proceeds to wrap over the nerve fiber with machinelike precision, spiraling down to create the distinctive sausage shape, tightening itself over the fiber like a threaded nut.

这层隔膜就象机器操作那样的精确包裹在神经纤维上，并旋转缠绕成特殊的香肠形状。就象螺母那样紧紧地包在神经纤维上。

With these databases,12 essential evaluation factors was decided,such as drainage capability,crop rotation system,parent material,soil erosion type,soil acidity,organic matter,total nitrogen,available phosphorus,available potassium,exchangeable magnes...

并在此基础上选取排涝能力、轮作制度、成土母质、土壤侵蚀类型、pH、有机质、全氮、有效磷、速效钾、交换性镁、耕层厚度、障碍层状况12个要素作为评价指标。

This magnetic arrangement along with the resulting radial currents from the Neodymium layer creates the roller's magnetomotive forces into motion at right angles to both the electric and magnetic vectors.

这磁性的安排与由此产生的径向水流从钕层创造了滚子的 magnetomotive部队运动成直角的电场，磁场载体。

Prophenoloxidase is a key enzyme for mediating melanotic encapsulation of oocysts,which may be transformed into active phenoloxidase by limiting proteolysis.

而前酚氧化酶(Prophenoloxidase，PPO)是介导卵囊黑化包被反应的一种关键酶，活化后可催化酪氨酸羟基化为二羟基苯基丙氨酸，二羟基苯基丙氨酸和多巴胺可进一步氧化为具有活性的苯醌活性，苯醌即可介导蛋白交联并聚合成黑色素层固定、隔离或杀死入侵的病原体。

Abstract］ Objective To discuss the clinical application of mesenteric multi-slice spiral CT angiography.

目的 探讨多层CT肠系膜血管成像的临床应用价值。

Adult mesenchymal stem cells are non-hematopoietic cells with multi-lineage potential to differentiate into various tissues of mesodermal origin.

成人间质干细胞是一种具有分多谱系化能力，能分化成中胚层来源的各种组织的非造血细胞。

Here we address this question, focusing on SKPs, a cultured adult stem cell from the dermis that generates both neural and mesodermal progeny.

我们通过SKPs论述了这一问题，SKPs是一种来源于真皮的成体干细胞可以分化形成神经和中胚层子代。

BACKGROUND: Under different induction conditions, bone marrow mesenchymal stem cells can differentiate into the mesodermal tissues such as osteoblasts, chondroblasts, muscle cells, adipocytes and so on.

背景：骨髓间充质干细胞在不同诱导条件下具有向中胚层组织细胞如成骨细胞、成软骨细胞、肌细胞、脂肪细胞等分化的能力。

Human basic fibroblast growth factor is a single-chain heparin-binding polypeptide. It is a general regulatory mediator for different cells such as endothelial cells and for other cells of mesodermal and neuroectodermal origin, it stimulates cells proliferation, inducing or delaying differentiation.

人碱性成纤维细胞生长因子是一种单链的具有与肝素结合能力的多肽分子，它能够调节内皮细胞及其它来源于中胚层和神经外胚层等多种细胞的生长、分化、迁移和凋亡，同时是一种重要的血管生成因子，因此具有广泛的临床应用价值。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失