查询词典 focal length

ABSTRACT :In recent years, the vulgarization of entertainment content in the television programs has become the focal point which evokes the focal point in the society.

摘 要：近年来，电视娱乐节目内容的低俗化已成为国内社会关注的焦点。

Objective: To observe the motor function variation of focal cerebral ischemical reperfusion injury rats'limbs at different time. To observe the expression of PCNA and VEGF. To observe the effect to that index when electric acupuncture the"Quchi"and"Housanli". To observe the effect to the focal cerebral ischemical reperfusion injury rats, which are inject eNOS catastaltic, when electric acupuncture that two acupoints. Through observing of above all things , we study acupuncture's blood vessel regenerated effect to cerebral ischemia reperfusion injury region, approach the possibility of brain functional recovery angiogenesis which promoted by acupuncture, provide new consider and experiment accordings for deepening acupuncture therapy of the ischemia stroke.

研究目的：通过观察局灶性脑缺血再灌注损伤大鼠不同时间点肢体运动功能的变化及损伤脑组织核心增长蛋白、血管内皮细胞生长因子的表达情况，电针&曲池&、&后三里&穴对以上各指标的影响、电针&曲池&、&后三里&对给予eNOS抑制剂对局灶性脑缺血再灌注损伤大鼠的影响，研究针刺对大鼠脑缺血再灌注损伤区血管再生的作用，探讨针刺促进脑功能恢复的血管生成可能机制，为进一步深化针灸治疗缺血性中风的认识提供新的思路和实验依据。

Which indicated AQP4 participate brain edematization after ICH. Compared focal mild hypothermia group rats with normothermia group rats, the former's water content and AQP4 of cephalophyma periphery visibly decrease. Which indicates focal mild hypothermia therapy can relieve encephaledema after ICH.

局部亚低温治疗能使脑组织含水量及AQP4蛋白表达减少，表明亚低温治疗能减轻脑出血后脑组织水肿，可能通过影响AQP4表达来减轻脑出血后脑水肿是其重要的治疗机制。

In this project, two lenses are set coaxially and signals are detected on the back focal plane of the first lens and the combined back focal plane of the two lenses at the same time.

为了提高激光粒度仪测量宽分布范围粒径的能力，根据衍射原理，提出扩大测试动态范围的方法。

It is found that the size of vortex dark core in the focal region and the spectral degree of coherence in the focal plane depend on the topological charges n , interceptive parameters δ, relative coherence lengths σg and the parameters α.

数值计算结果表明，涡旋暗核的大小和焦平面上的光谱相干度都取决于入射光的拓扑电荷n、截断参量δ、相对相干长度σg和参量α。

Focal depth of the earthquake is the most in 1963 in Indonesia Irian Jaya province in northern waters of the 5.8 earthquake, the focal depth of 786 km.

震源深度最深的地震是1963年发生印度尼西亚伊里安查亚省北部海域的5.8级地震，震源深度786公里。

Based on the analysis of the geological tectonics setting and deep seated geophysical characteristics, the causative structure of the Yongdeng M S 5.8 earthquake on July 22, 1995 has been determined by the synthetical study of the faults in the earthquake area, focal mechanism solution, focal depths, meizoseismal region direction, post earthquake distribution, earthquake fissures and ground motion direction.

在分析地质构造背景和深部地球物理特征的基础上，通过对震区断裂构造、震源机制解、震源深度、极震区展布方向、余震空间分布、地震裂缝和地面运动方向的综合研究，确定了1995年7月22日永登5.8级地震的发震构造，探讨了形成该次地震的构造力学机制问题，认为该次地震是在局部构造应力直接作用下导致窑街—周家台隐伏断裂重新活动的结果

All but 2 of 40 patients with perforated appendicitis had a clearly visualized focal defect in appendiceal wall enhancement, the researchers report, and only 2 of 62 patients with nonperforated appendicitis had false-positive findings for a focal appendiceal wall defect.

四十名阑尾穿孔患者中有两名其阑尾壁的局灶缺损可以被清晰增强显示，六十二名非阑尾穿孔患者中仅两名出现阑尾壁局灶缺损的假阳性发现。

The focal mechanisms of moderate-small earthquakes are calculated tentatively using digital seismic wave data in some provincial digital seismic networks based on the program of focal mechanism determinations combing the first motion of P, SV and SH waves with their amplitude ratio, which is recently developed by Snoke.

引言 强震前震源及附近地区中小地震的震源机制解是否变化，一直是地震预测比较关心的问题[1]。由P波初动求取地震的震源机制解是地震学中一个常用的方法，但这种方法要求所计算的地震被很多台站记录到[2]。

The design was optimized for maximum signal intensity by simulation and experiments. The size of focal spot in the micro-channel capillary was optimized. Fluorescence signal was enhanced 2～3 times when increasing the diameter of focal spot from 10μm to 50μm (full of the inner wall of capillary), through which the sensitivity and signal-noise ratio were also improved. A technique of using refractive matching liquid was presented. The fluorescence signals were boosted up and the signal collection efficiency was also meliorated when using this method.

通过理论分析和实验优化本系统的设计：优化聚焦于微通道中的激发光斑大小，增大聚焦到毛细管内径中的激发光斑尺寸，使光斑尺寸由最小的10μm增大到50μm，光电倍增管接收到的荧光信号提高了2-3倍，从而提高系统的信噪比和灵敏度；提出在聚焦物镜处加折射率匹配液的方法，加匹配液后的荧光信号得到了增强，因而提高了荧光收集效率和灵敏度。

According to our present broadcasting situation,the thesis proposes using new technology to update and reform the present HFC. It also suggests broadcasting using self-advantage and arranging EPON in order to win the supermarket.

论文从我国广电的现状出发，结合实际，积极倡导采用新技术更新、改造我国现有的HFC网络；倡导广电现阶段利用自身优势，部署EPON网络来赢取市场。

A new general kinetic equation was derived in which the effect of the removal of condensation water was taken into account completely, and was applied to the polyesterification kinetic study of AA/HPHP and AA/NPG. It was found that the reaction order of self-catalyzed polyesterification was not constant. For these polyesterifications, the reaction order was 2.5 at a low temperature, while 3.0 at a high temperature.

考虑缩合水的排除对反应体系的影响，用体积浓度单位推导出一个新的聚酯反应总包动力学方程，并应用到AA/HPHP和AA/NPG两个聚酯化反应的动力学研究中，研究发现，自催化聚酯反应的反应级数并不是固定值，对于AA/HPHP和AA/NPG两个聚酯化反应而言，低温时反应级数为2.5，高温时反应级数为3.0。