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Objective To evaluate the diagnostic value of multi-slice CT in acute mesenteric ischemia.

目的评价MSCT对急性肠缺血的诊断价值。

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。

Through designing of composition and structure of the bioactive graded coating,innerstress and its distribution in the coating were analyzed and calculated, the resultsshowed that when composition distribution coefficient n was 1.5, a reasonable stressdistribution could be got, that was at the beginning of deposition the suspension containingrichly BG granules was used so that a rich BG granules layer, a good transitional layerbetween BG layer at the bottom and the coating could be obtained at the titanium alloy side,the bottom of the coating; the stress value near the interface and surface and its character,pressure stress or tensile stress, were decided by the character of its composition itself.Changing composition distribution coefficient n could only change the variation tendency ofstress in the coating, but did not change the stress distribution rule in the coating. Thethinner the coating is, the sharper stress variation in the coating is, which does not mean thatthicker coating is better because the thicker the coating is, the little the permitteddeformation of coating is, so the coating thickness should be thinner, for example, about50μm for bending applications, but for applications only bearing pure shear stress, such asroot of tooth implant, the coating can be thicker little, for instance, about 80～100μm. The study on electrification characteristic and electrophoresis deposition of HAand BG granules in aqueous and non-aqueous solution system found that EPD almost didn'toccur in aqueous solution system. However, because HA granules take position charges inabsolute alcohol, a homogeneous EPD be carried out on the cathode titanium alloy slice, but taking negative charge in absolute alcohol the BG granules not be deposited on the cathode. A guided HA crystallizing, 100～300nm, on surface of the BG granules be realized by metathetical reaction, which cover BG granules with HA microcrystals and make the covered BG granules taking position charges in absolute alcohol, sequentially realize the EPCD of the BG and HA granules on the cathode, so it is feasible to make a titanium alloy/BG/HA bioactive graded coating by making use of EPCD technology. The corrosion experiment of rich boron bioglass coating and plasma spray coating showed that split phase, rich boron and rich silicon phase, occurred during its preparation. In basic medium the corrosion behavior of 〓 BG coating showed uniformity corrosion, the corrosion mostly occurred at rich boron phase area, therefore batch formula design of BGshould avoid the occurring of split phase. The corrosion appearance of plasma spray coatingappeared a non-uniform corrosion, mostly occurred at the edge of the laminated HA moltendrops, and emerged an accelerated corrosion tendency, which will easyly lead to corrosioncrackles extending to the interface and the happening of osmotic interfacial corrosion, thatmay be one of the major reasons leading to the coating cracking-off in the later period. Thetesting results of thermal expansion coefficient of 〓 and 〓BG showed the thermalexpansion coefficient of 〓 BG matched with that of titanium alloy better, and 〓 BG couldsinter with titanium alloy into densification enamel layer at low temperature (720℃).

将Ti6Al4V合金在1000℃下进行真空热处理会降低其力学性能，且合金内的V元素会向表面富集，因此，钛合金真空热处理和表面涂层的烧结温度不能过高，即应低于其相转变点；通过对生物活性梯度涂层的组成和结构的设计，分析和计算了梯度涂层内的应力大小和分布，结果表明：对于本研究，当成分分布系数n=1.5时，可以获得较合理的涂层力学性能，即在沉积开始时，采用富含BG颗粒的悬浮液，以便在钛合金侧获得同底层BG有良好过渡的富BG涂层；梯度涂层界面和表面的应力大小、性质由材料组成本身的性质决定，改变成分分布系数，只能改变涂层内应力变化的趋势；涂层的厚薄不影响涂层内的应力分布规律，但涂层越薄，涂层内的应力变化越快，但这并不意味着涂层越厚越好，因为涂层越厚，涂层允许的变形越小，对于应用于弯曲受力部位的涂层而言，涂层应薄一点为好(50μm)；而对于仅纯受剪切应力的部位，如牙根种植体，涂层可适当加厚(80～100μm)；通过对HA和BG颗粒在水溶液体系和非水溶液体系中的带电特性和电泳沉积的研究发现，它们在水溶液体系中很难发生电沉积；在无水乙醇溶液中，HA颗粒带正电，可在阴极钛合金片上发生均匀的电泳沉积，而BG颗粒则带负电荷；利用复分解反应法，可以制得100～300nm的HA，通过诱导HA在BG颗粒表面结晶，可对BG颗粒进行表面包覆，获得了被HA包覆的BG颗粒，改变了BG颗粒表面的带电特性，使BG和HA颗粒在无水乙醇中均带上正电荷，从而实现了HA和BG颗粒在阴极上的共沉积。

This invention provides a method of processing the coke microlite high distinguishes the radio mirror picture, its may obtain the primitive coke HRTEM picture transformation the clear graphite microlite stripe chart, and may be directly used to calculate graphite microlite size and slice space parameter, and so on.

本发明提供的焦炭微晶高分辨透射电镜图像的处理方法，其可以将原始的焦炭HRTEM图像转换得到清晰的石墨微晶条纹图，并可直接被用于计算石墨微晶的大小和层片间距等微晶参数。

In charpter two, slice structure model theory was introduced to analyse and describe the chemical reactions during different mixing stages, by which we divide it into three regions, the material scatter region, the micromixing region and the macromixing region. These three regions correspond to the state of complete segregation, partial segregation and maximum mixedness respectively.

本文第二部分应用片状结构模型理论，对工业重排反应在各个不同混合阶段的化学反应进行了分析和描述，将混合过程分为物料分散区、微观控制区和宏观控制区，每一个区域的物料分别处于完全离集、部分离集和最大混合状态。

Traveler megan McCormick begins her journey in plymouth, site of America's first pilgrim community. after sampling a slice of vibrant culture in boston she heads morth to experience the fall in vermont.

我们的旅程将从普利茅斯开始，穿过波士顿，到达康涅狄格州，体会过那里的充满活力的文化之后，我们将北上前往佛蒙特州---秋天把这个地方的风景变成了幅色彩鲜艳夺目的、巨大的油画。

Objective To compare the image results between 64-slice spiral CTA and cardiac multimodality MR scanning in detecting coronary artery disease.

目的 比较64层螺旋CT冠状动脉造影和磁共振心脏多技术扫描对冠心病的诊断结果。

Methods: The multinucleated giant cells were separated from giant cell tumour and cultured with bone slice.

目的：比较骨巨细胞瘤中的多核巨细胞与破骨细胞骨吸收的功能特点。

The degradation of myoglobulin is similar to aging in muscle tissue slice and SDS-PAGE. The result showed that tenderization of low concentration was similar to high concentration in longer marination.

最后，在肌纤维组织切片与电泳分析中，可以观察到类似熟成之肌肉蛋白质分解现象，显示禽畜肉即使在低浓度的嫩化处理中，只要延长浸泡时间，仍然能够得到与高浓度嫩化处理的类似的效果。

The discussions which the study investigated were chicken and pork meat processing for elders via different tender mode. In this study, we want to evaluate the nutritions of elders and focus on animal protein. The experiment was injected marination with CaCl2, NaHCO3 and enzyme on pork and chicken meat quality traits. Treatment on the meat was analyzed proximent quality and textural properties by response surface stepwise regression. The best tender method was discovered the elder's sensory evaluation of different tender mode and observed degradation of myoglobulin by muscle tissue slice and SDS-PAGE (10%). The function of sous-vide cooking collocated with tenderization that was evaluated by textural properties and sensory evaluation. It looks for discussion about meat processing for elders.

中文摘要本试验目的在利用市售禽畜肉为原料，针对高龄者之营养需求，分别使用氯化钙、碳酸氢钠与嫩化酵素等常见之嫩化方式对禽畜肉进行嫩化处理，搭配反应曲面法分析一般特性与物性测定，并进行高龄者品评测试以探讨不同嫩化方式之口感影响以求得不同禽畜肉之最佳嫩化处理，并以肌纤维组织切片与电泳分析观察肌肉蛋白质之分解现象，最后利用真空调理法搭配嫩化处理并分析物性测定与品评测试，评估真空调理法增进嫩化之效果，探讨禽畜肉开发为适合高龄者之加工产物模式。

What was it that made you want to change sider ?

是什么使你临阵倒戈？

I don't know what he wants, but let's play along with him.

我不知道他要干什么，可我