无边缘的

The typical manifestations of PHC were nodular,irregular and heterogenous enhanced regions in lesion,tumorous vessels could be seen in the arterial phase,the hyperdense regions in the arterial phases were changed to hpodense quickly in the portal phase;The characteristic findings of HCH were well-defined intense mural nodular enhancement in the arterial phase,and centripetally oriented enlargement of this nodular in the portal phase,the density of the nodular in the arterial phase were similar to that of aorta or hepatic arteries.

原发肝癌的典型表现是动脉期病灶内结节状、片状强化，并可见肿瘤血管影，强化部分在静脉期迅速呈低密度影；肝血管瘤的特征性表现为动脉期病灶边缘结节状强化，密度类似于主动脉或肝动脉，静脉期强化结节逐渐向病灶中央扩展；肝转移癌的主要表现为动、静脉期病灶边缘环状强化，中央部分无明显强化，静脉期还可见到"牛眼征"。

The synthesis scheme we developed can deal with changes in visibility, produce perspectively correct views and handle the distortion around the circumferences in the synthesized views. In our scheme, the area without corresponding points was first determined by using Fourier transformation in order to deal with distortion problem, within the mutual overlapped area the z-buffer values of matched key points were computed so that the visibility in novel views can be handle correctly, lastly the common points in new views are rendered through epipolar geometry constraint.

算法的步骤为：利用傅立叶变换方法确定相邻源图像无对应点的区域；然后，利用尺度空间和相位一致原理在共同区域提取及匹配边缘上的关键点，计算其深度值，并在新图像中由该值判别虚拟图像中的可见性；再由关键点恢复极线约束，通过极线间的位置和颜色插值生成虚拟图像中有对应区域的一般点；在确定极线位于无对应点区域段后，利用加权平均或放大插值的方法实现了源图像无对应点区域在虚拟图像中的自然过渡。

And according to the directions, the Bandelet blocks were classified into two sorts: the Bandelet blocks with geometrical directions and the Bandelet blocks without geometrical directions, and the different characteristics of the two sorts of Bandelet blocks were analyzed in order to distinguish the noise and signal, and the weak contrast features and the strong contrast features.

根据图像增强方向将Bandelet块分为两类：有几何方向的Bandelet块和无几何方向的Bandelet块，并分析了这两类Bandelet块系数的不同特征，从而区分出噪声和信号、清晰边缘和脆弱边缘。

Colonies on improved agar, when grown 24～48 hours at 37℃ in a candle jar, are 1～2mm in diameter, convex, entire, transparent, glistening, and butyrous. Some strains produce slimy growth. Colonies on clear media are iridescent when observed with obliquely transmitted light.

生物学特性研究表明，该菌在普通营养琼脂平板上不生长，在改良琼脂平板上，烛缸中，37℃培养24～48h后可形成微凸起、边缘整齐、透明有光泽的奶油状光滑型菌落，无溶血现象，菌落无色素，直径1～2mm，在麦康凯培养基上不生长。

In contrast, P. obliquum has lamina with basal pinnae contracted, scales of petiole brown adaxially, scales of rachis up to 2.3×0.5 mm, pinnae green, chartaceous, matt adaxially, and serrulate on margin, and microscales 0.2-0.5×0.1-0.2 mm.

obliquum相似，但吞天井耳蕨的叶片基部最宽，向基部不缩短，叶柄鳞片近轴面深棕色，叶轴鳞片达3.6×0.8mm，羽片深绿色，近革质，向轴面有光泽，边缘具略波状微齿或近全缘，小鳞片达2×0.5mm；而斜羽耳蕨的叶片的基部缩短，叶柄鳞片向轴面棕色，叶轴鳞片达2.3×0.5mm，羽片绿色，草质，向轴面无光泽，边缘有锯齿，小鳞片达0.5-0.8×0.2-0.3mm。

Culm sheaths pale green, sparsely deciduously brown strigose, base and margins glabrous, apex truncate; ligule weakly arcuate or truncate, margin ciliolate; blade erect, subulate, small.

竿箨苍绿色，稀少脱落的棕色糙伏毛，基础和边缘无毛，先端截形；叶舌身体虚弱的弧曲的或截形，边缘具短缘毛；叶片直立，钻形，小。

Leaves alternate, sessile or subsessile, terete, semiterete, or narrowly complanate, margin entire.

叶互生，无柄或近无柄，圆柱状，半圆柱形，或狭扁平的，边缘全缘。

ANP and CX43 began to express at 2nd week after induction and increased gradually,about 60% of the resulting myogenic cells were positive at 4th week after induction ,they were negative for uninduced cells.hMSCs'surface antigen profiles obtained by Flow Cytometry were negative for CD31\CD34\CD45 before and after induction,but CD90 expressed higher after induction while was weak positive before induction(P.05). Apotosis index was correlated with the cultural time after induction,The apoptosis rate of induced hMSCs was remarkably higher than control group(P.01),and the variation between groups was notable(P.05),the cell cycle analysis showed that the percentages of G_0/G_1phases were reduced significantly after induction. The expresstion levels ofβ-MHC and CTNT mRNA were undetectable before induction,began to increase at 1st、4th week after induction,reached the peak at 6th week and decreased after that,the expression of Bcl-2 and Bax mRNA varied regularly after treated with 5-azacytidine. hMSCs'resting membrane potential、range and rate of depolarization were heightened gradually after being induced.

结果：hMSCs诱导前为纺锤形，诱导后第2天部分细胞即开始发生形变，呈球形或短棒状，1周后胞浆中颗粒增多，约20～30%细胞边缘呈毛刷样变化；hMSCs表面抗原CD31、CD34、CD45在诱导前后差异无统计学意义，CD90未诱导时表达呈弱阳性，诱导后明显增高(P.05)；ANP和CX43在诱导前无表达，诱导后第2周开始表达且表达随时间逐渐增强，但CX43在诱导后第5周表达量开始降低。hMSCs诱导后凋亡指数随诱导后培养时间增加，低浓度诱导组低于标准浓度诱导组，组间差异有统计学意义(P.05)，G_0/G_1期细胞比例诱导后较对照组显著减少(P.05)；β-MHC和CTNT基因分别在诱导后第1周和第4周时表达开始增强，在第6周时均达到高峰，第8周时表达开始衰减，Bcl-2、Bax基因表达呈时间依赖性变化，hMSCs经诱导后随心肌样细胞特征的表达膜静息电位、去极化幅值和去极化速率逐渐增高。

Sepals 6, white, obovate to rhombic-obovate, 2--3 × 1--1.5 cm, abaxially densely velutinous along midvein, adaxially glabrous, margin glabrous, apex acute.

萼片6，白色，到菱形倒卵形， 2-3 * 1-1.5 厘米，背面的密被茸毛沿中脉，正面无毛，边缘无毛，先端锐尖。

Sepals 4, yellow, ascending, oblong or long elliptic, 0.8--1.6 × 0.4--0.85 cm, abaxially puberulous or glabrous, adaxially glabrous, margin narrowly winglike, velutinous on inner line, apex obtuse.

萼片4，黄，上升，长圆形或更长椭圆形， 0.8-1.6 * 0.4-0.85厘米，背面的被微柔毛或无毛，正面无毛，边缘狭翅状，茸毛，先端钝。

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。