内流

Curvilinear calcification suggests an aneurysm but is a less specific finding because it can also occur in craniopharyngiomas and sphenoidal masses. The intense enhancement of the residual lumen is relatively specific, but differentiation from other masses may be difficult on CT scans depending on the timing and degree of vascular enhancement. The MR imaging features are usually diagnostic, although they can be very subtle [2]. Significant signal heterogeneity is seen with T1 hyperintense signal due to subacute thrombus or flow related enhancement. Areas of T2 hypointensity can be seen due to intracellular deoxy or methemoglobin, calcification, or flow void.

线样钙化提示动脉瘤，但不是一个非常特异的征像，因为这也可以见于颅咽管瘤和蝶骨肿瘤，管腔样明显强化更特异些，但是在CT上与其他肿瘤鉴别可能是困难的，因为这取决与增强的时间与血管强化的程度，MR的特征性表现是更具有诊断意义的，即使有时候可能表现的非常细微，在T1上可以看到明显的不同信号成分，这是由于亚急性的血栓或流动相关增强效应，T2序列上可以看到低信号区域，这是由于细胞内脱氧或高铁血红蛋白，钙化，或流空效应。

Objective: To investigate the effects of bile reflux and intragastric microflora changes on lesions of remnant gastric mucosa.

目的：了解不同的胃手术术后胆汁反流和胃内菌丛变化对残胃粘膜的影响。

Dogs were selected as experimental subjects. Using micrurgy to destroy the valves in both sides of common iliac veins, external iliac veins, femoral veins and popliteal veins, establishing theanimal model of refluxing.

取杂交犬6条，全身肝素化，采用显微操作方法破坏每条犬的双侧髂总静脉、髂外静脉、股静脉和膕静脉内的生理瓣膜，构建下肢返流性疾病的动物模型。

In this paper, a numerical and physical simulation was performed for the feeding system in the molten pool.

本文采用水力学物理模拟实验与数值计算相结合的方法，对熔池内布流系统进行了研究。

The law of the variation of the moment of momentum flux along furnace height is investigated firstly.

首次深入地研究了炉内气流旋转动量流率矩沿炉膛高度的衰减变化规律。

In the circumstance of multiple queries,the overload point is estimated by finding a query as deadline bottleneck.

模型预测的过载点给出了能够保证数据流系统内所有查询满足各自截止期的临界情况。

Divergence variation of snow storm indicated that the formation of negative divergent variation in lower-layer predicted the shear convergence and the snow storm generation. Nongeostrophic vorticity and divergence of wind advection contributed to the divergence variation largely.

暴雪切变线的散度变率诊断表明，低层散度负变率带及中心的生成和发展预示着未来时期内切变线辐合区的形成和发展及暴雪天气的发生，其中非地转涡度和风速平流的散度项对散度变率的贡献较大。

This paper deals with the long time behavior of solutions to the homogeneous Neumann problem of the nonNewtonian filtration equation.

研究含内源与一阶项的非Newton渗流方程齐次Neumann边值问题解的长时间渐近行为。

ObjectiveTo investigate the clinical efficacy of retrosigmoid vestibular neurotomy and Endolymphatic sac surgery for treatment of Meniere's disease.To evaluate outcomes,indications,complications and follow up results.

目的：研究前庭神经切断术和内淋巴囊引流术治疗梅尼埃病的临床治疗效果；分析手术效果、并发症和随访结果，探讨可能的治疗机制。

An input phase voltage is divided into a main range and a transition range in which new P, M, N conditions and PM, NP, MN transition conditions are defined, some null vector is selected and the condition combination sequence of bidirectional power switches are adjusted in each modulation period to realize the safe, reliable and rapid commutation and the stable operation of the matrix converter.

本发明属于矩阵变换器控制技术，为一种用于矩阵变换器的控制方法，通过把输入相电压划分为主区间和过渡区间、在过渡区间定义新的P、M、N状态和PM、NP、MN暂态以及在每个调制周期内选择特定的零矢量并调整双向功率开关状态组合顺序，实现矩阵变换器安全、可靠、快速换流和稳定运行。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。