查询词典 resolution ratio

Though, the lateral resolution of CM has been enhanced to be 1.4 times of that of a conventional optical microscope under the same aperture focus ratio, it is still two orders of magnitude lower than the axial resolution of itself.

然而，尽管共焦显微镜的横向分辨力已提高到相同孔焦比的普通光学显微镜的1.4倍，但与其本身的轴向分辨力相比，横向分辨力仍低2个数量级，因此进一步改善共焦显微镜横向分辨力的研究显得尤为迫切。

Compared to cross-sectional imaging, it has a lot of advantages, such as the rate of obtaining projections, X-ray utilization ratio and the isotropy of the spatial resolution and density resolution in 3D object.

它在获取投影数据的速度、X射线的利用率及重建出的三维物体的空间和密度分辨率各向同性等方面，比断层成象有着极大的优越性。

A new method of high aspect ratio and resolution zoneplate fabrication using both electron beam lithography and X ray lithography technology is described The zoneplate, composed of 10μm thick Au with 30 zones and outest zone width of 0 5μm, can be used as a focusing and chromatic dispersion device for 0 1～1nm harder X rays Results show that the zoneplate has contrast of 10 and above, resolution of 0 55μm, and focus length of 21 3cm for 8keV X ray

介绍了利用电子束和 X射线束双曝光技术制作大高宽比高分辨率的 X射线聚焦或色散元件的新方法(波长范围为 1～ 5 nm )。所制做的厚度为 10μm的 Au波带片具有 30个波带，最外环的宽度为 0 。5μm。实验表明：对 8ke V的 X射线来说，波带片的衬度大于 10 ，分辨率为 0 。5 5μm，焦距为 2 1.3cm。

Owing to the abroad application of Candida rugosa lipase in the resolution of racemic aminoacides, the prepared lipase was used in the resolution of phenylglycine and tert-leucine. Through the optimization of the reaction conditions, such as reaction substrate, pH, temperature, ion strength and additives, enantiomeric excesses for phenylglycine and tert-leucine reached 96% and 90.1%, respectively, enantiomeric ratio came up to 28. 9 and 15. 4, respectively.

鉴于该酶广泛应用于手性化合物的拆分研究，本论文中选用了两种手性氨基酸作为拆分对象，通过对反应体系中一系列条件的优化，包括底物、pH、温度、离子强度以及添加物的使用，苯甘氨酸和叔亮氨酸的对映体过量值分别达到96%和90.1%，对映催选择率分别达到28.9和15.4。

Optimization of resolution conditions and affecting factors on resolution such as solvent, the molecular ratio of racemate to resolving agent, method of reaction, concentration of racemate, crystallization temperature and crystallization time were studied.

对影响拆分的因素溶剂和底物浓度通过均匀实验进行了优化，同时对其他影响因素如底物与拆分剂投料比、反应物溶解方式、结晶时间和结晶温度等进行了考察。

ABSTRACT:The half-power bandwidth method is the commonly used method at home and abroad, the authors discover that factors, such as the sampling frequency, the frequency resolution, the ratio of the sampling frequency to the signal frequency, the analyzed width and the damping ratio, make the estimated damping ratio fluctuate vastly. Mostly the result is incredible except for some conditions, the error is sometime amazing, which is not acceptable.

半功率带宽法是国内外常用的测试阻尼的方法，笔者发现半功率带宽法由于受到信号处理中的①采样频率SF②频率分辨率△f③采样频率与信号频率之比K ④采样分析的长度T和⑤阻尼比D的大小等因素的影响使得测得的阻尼比值波动很大，除少数状态是可信的外，多数状态是不稳定的，有时误差惊人，得到的测试数据不能使用，易导致错误的结论。

Correlation and signal-to-noise ratio of the space sources can affect the resolution of DOA estimation of subspace algorithms. Using this relation, the algorithm changes the correlation and SNR of the equivalent sources by processing the Toeplitz matrix based on the Toep-MUSIC algorithm, so that the resolution of DOA estimation can be improved.

改进算法利用信源间相关性和信噪比对子空间类DOA估计算法分辨力的影响，在Toep-MUSIC算法基础上，通过对Toeplitz重构矩阵的处理，改变了等效信源的相关系数和信噪比，从而使DOA估计分辨力得到提高。

Compared to cross-sectional CT, it has a lot of advantages, such as the rate of obtaining projections' X-ray utilization ratio and the isotropy of the spatial resolution and density resolution in 3D object. Voluming CT will became one of the more effective methods in medical imaging and industrial nondestructive test.

它具有获取投影数据的速度快、X射线利用率高、成象结果空间分辨率各向同性等优点，因而将成为用于医学影象诊断、工业无损检测等领域的更为有放的手段之一。

Only oneA/D converter is needed to complete complex quadrature translation and digital downconversion, get in-phase component and quadrature component in digital field, and also,after intra-pulse compression is done, the signal-to-noise ratio is raised, and inter-pulsecompression is done in digital field, and finally, high range resolution profile is got.Two-step stretch processing method for MMW high-resolution RADAR is presented.

计算并优化了毫米波雷达中频信号带通采样的最佳采样频率，应用现有的集成电路技术实现对中频信号的直接采样、用一个A／D转换器在数字域完成复数正交变换，在数字域完成下变频、获得同相信号和正交相信号、完成对子脉冲的脉内压缩、完成对脉内压缩信号的第二次脉间压缩，从而获得高分辨一维距离像。

Compared with ordinary detection methods, this method hasmany merits such as high resolution ratio,avoiding lots of disturbed waves,continuous collection for single trace, high energy of reflection waves and minimum offset distance.

该方法与其它常归物探方法相比，可避开许多干扰波，可单道连续采集，并且有分辨率高，偏移距小，反射能量高等特点。

Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.

Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。

I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.

我来只是现在，'歼灭战perfuming自己与胡努特，那麼，他来到和SAT 。