分辨能力

The last but not least, it is also owning to the rapid development in computer science and information technology. Such as, some computational task, which previously must be executed by using super-computer, now can be carried out by personal computer, and at the same time, the network speed and band width of data bus and input/output equipment have increased several times. In addition, the improvement of the high quality graphic displaying is available. All these provide strong support for cryoEM high-resolution reconstruction study.

目前，在低电子剂量的情况下，冷冻电镜照片可以记录到3-4 〓的信息，使用冷冻电子显微镜进行高分辨三维重构工作，已经获得6.5-8〓高分辨率水平的结果，可以分辨出蛋白质的α螺旋、识别出蛋白质的β折叠等蛋白质二级结构；其次是，三维重构算法效能的不断提高，使得对二十面体取向和中心参数计算的可靠性大大提高；再次是，由于计算机和信息技术迅猛发展，例如，以往需要使用大型计算机的计算任务已经可以被一般的个人电脑完成，网络速度、数据总线和硬盘等I／O设备的带宽成倍增长，以及图像显示能力的提高都为冷冻电子显微镜高分辨三维重构技术提供了强有力的支持。

Nowadays, in the low electron dose condition, the information about 3-4〓 can be recorded on the cryoEM micrograph, and the high-resolution reconstruction using the cryoEM has reached 6. 5-8〓 levels. The reconstruction can reveal the protein α helical and recognise β fold secondary structure. Secondly, it is due to the development in 3D reconstruction method, which can be more efficient to determine the orientation and center parameters. The last but not least, it is also owning to the rapid development in computer science and information technology. Such as, some computational task, which previously must be executed by using super-computer, now can be carried out by personal computer, and at the same time, the network speed and band width of data bus and input/output equipment have increased several times. In addition, the improvement of the high quality graphic displaying is available. All these provide strong support for cryoEM high-resolution reconstruction study.

目前，在低电子剂量的情况下，冷冻电镜照片可以记录到3-4 〓的信息，使用冷冻电子显微镜进行高分辨三维重构工作，已经获得6.5-8〓高分辨率水平的结果，可以分辨出蛋白质的α螺旋、识别出蛋白质的β折叠等蛋白质二级结构；其次是，三维重构算法效能的不断提高，使得对二十面体取向和中心参数计算的可靠性大大提高；再次是，由于计算机和信息技术迅猛发展，例如，以往需要使用大型计算机的计算任务已经可以被一般的个人电脑完成，网络速度、数据总线和硬盘等I／O设备的带宽成倍增长，以及图像显示能力的提高都为冷冻电子显微镜高分辨三维重构技术提供了强有力的支持。

A region superresolution spectrum estimation method based on coventional DFT computation is presented for obtaining one dimensional range profile, which has the advantages of real-time in computation and robustness under clutter and noise background over general superresolution methods. A iterative extropolation method based on both priori knowledge provided by conventional DFT spectrum and matching filtering process of target return data is also presented for range profile processing, which has the advantages of robustness in improving range resolution, suppressing clutter and noise.

在目标一维距离成像谱估计中，提出了以常规DFT为基础的邻域超分辨谱估计方法，它与普通超分辨算法相比，具有实时性强、在杂波与噪声背景中稳健性好的优点；在外推成像处理中，提出了以常规DFT目标结构图像为约束条件并结合目标信号准匹配滤波处理的迭代外推算法，其优点是稳健性好，能适度地提高距离分辨力但保留适度的抗杂波抗噪声能力。

Changes in false operation group, rehabilitation group and the intracerebral synaptic structure parameter of the model group.

为此本实验采用右侧大脑中动脉缺血大鼠模型应用滚笼网状训练、平衡训练以及Morris水密宫训练后，观察假手术组、经康复训练的康复组和未经训练的模型组大鼠在Y-迷宫分辨学习能力和一次性被动回避反应记忆保持能力的行为模式以及海马CA3区突触结构参数测定、在体LTP记录和NMDA受体通道电流记录等方法研究康复训练对梗死大鼠学习记忆的影响及其机制。研究内容包括： 1。

All sniffers were clueless about the menstrual cycle of pill-using women, though.

但是，两性志愿者对那些使用避孕药的女性月经周期都没有分辨能力。

It illustrates that the vertical resolution of absorption band wing can be increasedby computing spectral channel weighting function when the wing of the spectral channelnarrow down.

利用高光谱分辨率数据，光谱通道宽度变窄，计算权重函数，揭示出高光谱可以提高吸收带翼区的垂直分辨能力，同时可作为研制我们高光谱红外大气探测器选择波段的依据。2。

This dissertation will study how to increase the time resolution of scintillator TOF detector by investigating the under-building BESIII TOF detector.

本论文将以正在建设中的BESIII的TOF探测器为例，研究如何进一步提高TOF探测器的时间分辨能力。

The MRI image space resolution ratio reflects its resolving power to tiny subject under high contrast.

空间分辨率反映核磁共振系统在高对比度下对微小物体的分辨能力。

The principle of an optical microscope is quite simple; however, the resolving power of an optical microscope is limited by the wavelength of the light employed, being greater when the light source is shorter wavelength.

光学显微镜的操作规则相当简单；然而，光的波长将限制关学显微镜的分辨能力，光源越强，波长越短。

The principle of an optical microscope is quite simple; however, the resolving power of an optical microscope is limited by the wavelength of the light employed, being greater when the light source is shorter wavelength.

光学显微镜的原理及其简单。然而，其分辨能力受制于可见光的波长，光源波长越短，分辨力越强。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。