During the clinical study of different scanning MRI techniques, it is necessary to evaluate the image quality by measuring the signal noise ratio.
在临床上研究不同的MRI扫描技术时，必须要用信噪比这个参数来对图像的成像质量进行评价。
Results: The ratio of high quality images was 91.3% with the Smart Prep Scanning technology, while it was 66.6% with the technology of manually selected delaying time.
结果：采用自动跟踪技术获得的高质量图像占91.3%，延迟时间凭经验设定所获得的高质量图像占66.6%。
The curing reaction process of bamboo liquefaction phenolic resin with different molar ratio was studied by non-isothermal differential scanning calorimetry(DSC).
采用非等温差示热量扫描DSC曲线方法探讨了竹材液化物酚醛树脂胶不同物质的量之比时的固化反应过程。
The influence of multi-beam interferences, and the relation between the signal to noise ratio and the random drifts of the scanning wavelength are deduced.
理论分析了法布里-珀罗腔多光束干涉所产生的干扰以及扫描过程中波长的随机漂移对输出信噪比的影响。
Conclusion: the improved screw-setting technique of the lumber-thoracic pedicle by the preoperative ct scanning is a good method, it can effectively descend the ratio of bad screw.
结论：术前ct扫描椎弓根引导胸腰椎椎弓根螺钉的置入是一个较好的改良方法，能有效降低不良置钉率。
By use of this technique, we fabricated scaffold-like micro-well structures with sub-micron resolution and high aspect ratio by both raster scanning and pinpoint scanning methods.
与其它微加工技术比较，使用此方法除可制作复杂的三维微结构外，同时它又具有免用光罩、制作步骤简单、真正三维的立体结构及高解析度之优点。
By use of this technique, we fabricated scaffold-like micro-well structures with sub-micron resolution and high aspect ratio by both raster scanning and pinpoint scanning methods.
与其它微加工技术比较，使用此方法除可制作复杂的三维微结构外，同时它又具有免用光罩、制作步骤简单、真正三维的立体结构及高解析度之优点。
应用推荐