组频率

Results摘要: The incidence rates of renal dysfunction, shock, cardiovascular failure and gastrointestinal hemorrhage, the score of acute physiology and chronic health evaluation Ⅱ and the frequencies of pulse and breath in the severe hypoalbuminemia group were all higher than those in the mild hypoalbuminemia group (P＜0.05 or P＜0.01). The differences of incidence rate of hepatic failure and the scores of Ranson and Balthazar CT between these two groups had no statistical significance (P＞0.05). The incidence rate of infection and the mortality in the severe hypoalbuminemia group were higher than those in the mild hypoalbuminemia group (P＜0.01) in the later stage of SAP.

结果摘要：重度低白蛋白血症组肾功能衰竭、休克、心衰及消化道出血的发生率高于轻度低白蛋白血症组（P＜0.01，肝功能衰竭发生率两组比较无统计学差异；Ranson评分及Balthazar CT评分两组间比较，差异无统计学意义（P＞0.05）；重度低白蛋白血症组的急性生理和慢性健康评价指标Ⅱ（acute physiology and chronic health evaluationⅡ， APACHEⅡ）评分、脉搏和呼吸频率均明显高于轻度低白蛋白血症组（P＜0.05或P＜0.01；重度低白蛋白血症组后期感染发生率及病死率均高于轻度低白蛋白血症组

The differences of incidence rate of hepatic failure and the scores of Ranson and Balthazar CT between these two groups had no statistical significance (P＞0.05). The incidence rate of infection and the mortality in the severe hypoalbuminemia group were higher than those in the mild hypoalbuminemia group (P＜0.01) in the later stage of SAP. Conclusion: Hypoalbuminemia in the early stage can accelerate the deterioration in pathophysiology of SAP.

结果：重度低白蛋白血症组肾功能衰竭、休克、心衰及消化道出血的发生率高于轻度低白蛋白血症组（P＜0.01，肝功能衰竭发生率两组比较无统计学差异；Ranson评分及Balthazar CT评分两组间比较，差异无统计学意义（P＞0.05）；重度低白蛋白血症组的急性生理和慢性健康评价指标Ⅱ（acute physiology and chronic health evaluationⅡ， APACHEⅡ）评分、脉搏和呼吸频率均明显高于轻度低白蛋白血症组（P＜0.05或P＜0.01；重度低白蛋白血症组后期感染发生率及病死率均高于轻度低白蛋白血症组

Results: The incidence rates of renal dysfunction, shock, cardiovascular failure and gastrointestinal hemorrhage, the score of acute physiology and chronic health evaluation Ⅱ and the frequencies of pulse and breath in the severe hypoalbuminemia group were all higher than those in the mild hypoalbuminemia group (P＜0.05 or P＜0.01). The differences of incidence rate of hepatic failure and the scores of Ranson and Balthazar CT between these two groups had no statistical significance (P＞0.05). The incidence rate of infection and the mortality in the severe hypoalbuminemia group were higher than those in the mild hypoalbuminemia group (P＜0.01) in the later stage of SAP.

结果：重度低白蛋白血症组肾功能衰竭、休克、心衰及消化道出血的发生率高于轻度低白蛋白血症组（P＜0.01，肝功能衰竭发生率两组比较无统计学差异；Ranson评分及Balthazar CT评分两组间比较，差异无统计学意义（P＞0.05）；重度低白蛋白血症组的急性生理和慢性健康评价指标Ⅱ（acute physiology and chronic health evaluationⅡ， APACHEⅡ）评分、脉搏和呼吸频率均明显高于轻度低白蛋白血症组（P＜0.05或P＜0.01；重度低白蛋白血症组后期感染发生率及病死率均高于轻度低白蛋白血症组

The complications in the early stage, related parameters, and the incidence rate of infection and mortality in the later stage were evaluated respectively. Results: The incidence rates of renal dysfunction, shock, cardiovascular failure and gastrointestinal hemorrhage, the score of acute physiology and chronic health evaluation Ⅱ and the frequencies of pulse and breath in the severe hypoalbuminemia group were all higher than those in the mild hypoalbuminemia group (P＜0.05 or P＜0.01). The differences of incidence rate of hepatic failure and the scores of Ranson and Balthazar CT between these two groups had no statistical significance (P＞0.05). The incidence rate of infection and the mortality in the severe hypoalbuminemia group were higher than those in the mild hypoalbuminemia group (P＜0.01) in the later stage of SAP.

结果：重度低白蛋白血症组肾功能衰竭、休克、心衰及消化道出血的发生率高于轻度低白蛋白血症组（P＜0.01，肝功能衰竭发生率两组比较无统计学差异；Ranson评分及Balthazar CT评分两组间比较，差异无统计学意义（P＞0.05）；重度低白蛋白血症组的急性生理和慢性健康评价指标Ⅱ（acute physiology and chronic health evaluationⅡ， APACHEⅡ）评分、脉搏和呼吸频率均明显高于轻度低白蛋白血症组（P＜0.05或P＜0.01；重度低白蛋白血症组后期感染发生率及病死率均高于轻度低白蛋白血症组

In this chapter, three kinds of target recognition methods are performed, which are:①Target recognition method based on the description of polarization parameter plane. The echo polarization states of target are projected onto the polarization state plane described by the ellipticity ε and the tilt angle τ of the polarization ellipse, the change of parameter following ferquency becomes the chart. According to the changing trait of the chart, the multidimensional polarization feature space of target has been contructed. Furthermore, a series of polarization feature parameters used in designing the structure of target recognition device are extracted, and they are insensible to the posture of target.②Target recognition method based on the description of Poincare polarization sphere. The echo polarization states of target expressed by Stokes vector are projected onto the Poincare polarization sphere. The conception of polarization ferquency stability, which is used in describing the dynamic distribution characteristics of the target echo polarization states on Poincare polarization sphere, has been defined. A group of polarization feature parameters used in designing the structure of target recognition device are extracted, and they are insensible to the posture of target.③Target recognition method based on the description of frequency sensitivity. In accordance with the conception of the polarization state distance defined on Poincare polarization sphere, the frequency sensibility of the physical structure property of target has been investigated, the frequency distribution feature curves in PSD domain are obtained, and targets'features are extracted by means of the curve-fitting method with Least Square Criterion.

这章具体研究了基于三种极化散射特性描述的相应的目标识别方法：①基于极化参数平面描述的目标识别方法，将目标回波极化状态投影到以极化椭圆参数，即椭圆率角ε和倾角τ表征的极化状态平面上，参数随观测频率的变化就形成了图，根据图的变化特点构造了目标的多维极化特征空间，并提取了不敏感目标姿态变化的极化特征参数组来设计目标的识别器结构；②基于Poincare极化球面描述的目标识别方法，采用Stokes矢量表征目标回波的极化状态，并将其投影到描述极化状态的Poincare极化球面上，定义了极化频率稳定度的概念用以刻画目标回波极化状态在Poincare极化球面上的动态分布信息，提取了准方位不变性的目标极化特征，最后设计了目标的识别器结构；③基于频率敏感性描述的目标识别方法，通过在Poincare极化球面上所定义的极化状态距离的概念，研究的是复杂目标物理结构特性对探测信号频率的敏感程度问题，获得了在极化状态距离下的频率分布特性曲线，采用最小二乘估计曲线拟合方法，它既用于极化特征的降维，同时又直接将拟合参数作为目标的分类特征。

The items of respiration and circulation recorded before and 10, 20, 30, 40min after pneumoperitoneum as well as 5 min after deflation abdomen were as follows: blood pressure, heart rate, sphygmus oxygen saturation (SpO_2),...

结果术毕清醒时间硬膜外组明显短于全麻组(P·05)，气腹后20min、30min潮气量硬膜外组明显小于全麻组(P·05)，各时点呼吸频率、分钟通气量、气道压硬膜外组分别明显快于、大于、低于全麻组(P·05)，其余各项指标两组无显著差异。结论在妇科腹腔镜手术中，两种麻醉方式对呼吸、循环的影响无显著差异。

The unoperated sides of the treated animals also served as controls. Six normal rats were treated as normal control group. Three different siRNA plasmid solution containing RC2-Ⅰ, MAFbx-Ⅱ, CON (50μl , 0.8μg/μl)was injected and transfected by electroporation as methods mentioned above, respectively. The changes of RC2 and MAFbx mRNA levels and RC2 protein levels after 3 days were determined by real-time quantitative PCR and Western blot, respectively. On postoperative 2, 3 and 4 weeks, the rate of wet muscle weight preservation, mean diameter of muscle fiber and mean cross-section area of muscle fiber and muscle protein content were checked and then compared between group CON and group RC2 or group MAFbx, respectively. The differences between groups were analyzed by one-way ANOVA. Ultrastructural changes of muscle fiber were observed at 2, 3, 4 weeks postoperation.Results GFP plasmid was efficiently deliverd into muscle by electroporation and robust GFP expression in muscle could be observed more than three weeks. Histology shows that injected plasmid DNA diffuses extensively in muscle tissue.

1、健康雌性SD大鼠18只，随机分为电穿孔组和非电穿孔组，每组9只，制作右下肢趾长伸肌失神经支配模型；EP组为将质粒pEGFP-N1溶液50μl(0.8μg／μl)注射入右趾长伸肌后，立即于两侧腱腹交接处给予电穿孔，电穿孔参数为：电场强度为200V／Cm，脉冲100μs，频率1Hz，施加10次脉冲；NEP组仅质粒pEGFP-N1溶液注射；转染后1、2、3周，荧光显微镜下观察趾长伸肌中GFP的表达情况，转染后1周行Western印迹检测趾长伸肌中GFP蛋白的表达情况，检测和优化体内转染效率。2、健康雌性SD大鼠78只，随机分为失神经对照组、RC2基因治疗组(RC2组)，MAFbx基因治疗组，每组24只，制作右下肢趾长伸肌失神经支配模型，余6只为正常组；分别将含CON、RC2、MAFbx基因的siRNA重组质粒注射入趾长伸肌，之后给予电穿孔，方法同上；治疗后3天实时定量PCR和Western印迹检测各组中RC2或MAFbx基因的mRNA和蛋白的表达变化，治疗后2、3、4周检测各组肌湿重维持率、肌细胞直径和肌细胞截面积，肌细胞超微结构变化以及肌纤维中蛋白含量变化。

But in practical operating, overvoltage caused by reignition of the vacuum switching device frequently appears, and it result in damage of the capacitor bank or the switchgear itself. Ensuring the switchgear against reignition and installing a protective device are two main approaches to avoid the phenomenon. In this paper, a study on overvoltage caused by reignition due to capacitor bank switching with the vacuum switching device and its preventive measures are carried out. The main work which has been done and researches are as follows: 1. The producing mechanism of overvoltage and its influence factor are analyzed. It is pointed out that single-phase reignition is the main reason for damage of the switchgear and two-phase reignition is the main reason for damage of the capacitor bank,so overvoltage of single-phase reignition and two-phase reignition are the emphases of prevention. 2. Analysis of the special working condition of the operating switch for capacitor bank is carried out. It indicates that the vacuum switching device is difficult to realize no-reignition under this operation condition, so it is more practical to adopt protection devices. 3. Analyses of protection effect of RC and MOA and their shortages are carried out. It shows that the two methods can only restrain effectively overvoltage caused by single-phase reignition, and they cannot protect the capacitor bank when reignition of two-phase occurs. 4. The operation principle of G-R damping device is analyzed and discussed emphatically.

本文针对真空开关投切电容器组时因重燃而产生的过电压及其防治措施进行了研究，所开展的主要工作和研究结果如下： 1、对过电压的产生机理及其影响因素进行了分析，指出单相重燃是导致开关设备损坏的主要原因，而两相重燃则是导致电容器组损坏的主要原因，因此单相重燃和两相重燃过电压是防护的重点； 2、对电容器组操作开关的特殊运行条件进行了分析，指出在这种运行条件真空开关难于实现不重燃，因此采用保护装置更具有现实意义； 3、对RC与MOA的保护效果和存在的不足进行了分析，指出这两种方法均只能有效抑制单相重燃过电压，而不能在发生两相重燃时保护电容器组； 4、重点对G-R阻尼装置的工作原理进行了分析和讨论，指出该装置接入后线路中将会出现两种频率的高频振荡，而电容器组上的过电压是由这两种振荡共同决定的； 5、根据对上述两种振荡的分析指出存在一个最佳电阻值使得过电压最低，并提出了电容器组电压和最佳电阻值的近似求解方法； 6、使用电气暂态分析软件MATLAB对G-R装置的保护效果进行了仿真计算，证实该装置确实可以有效抑制重燃时的电容器组过电压； 7、根据仿真与近似计算结果的偏差提出了近似计算的修正方法，经过修正后的过电压计算结果与仿真结果吻合较好； 8、对G-R装置中放电装置G与阻尼电阻R的要求进行了分析，指出采用编织电阻和真空间隙可能是最佳选择。

Methods Medullary slices of newborn Sprague-Dawley rats were prepared for the experiment. The electrophysiological experiment comprised 5 groups (each with 8 slices), each of which were perfused with artificial cerebrospinal fluid, CO, 1H-[1, 2, 4] oxadiazolo [4, 3-a] quinoxalin-1-one (a specific inhibitor of sGC, ODQ group), ODQ+CO (ODQ+CO group), and dimethyl sulfoxide, respectively. The burst frequency of hypoglossal rootlets was recorded as an index of rhythmic respiratory activity. Radioimmunoassay was employed to determine cGMP levels of the medullary slices of the ACSF control group, exogenous CO group, ODQ group and ODQ+CO group (n=6/group).

电生理实验分为5组（每组n=8：单纯人工脑脊液对照组、外源性CO组、ODQ组、ODQ+CO组和二甲基亚砜组，制备SD大鼠离体延髓脑片标本，以舌下神经根节律性自发放电频率(bust frequency， BF)为指标，分别灌流以上药物，观察呼吸节律的变化，并以放射免疫方法检测单纯ACSF对照组、外源性CO组、ODQ组和ODQ+CO组给药后脑片cGMP水平的改变（每组n=6）。

The 4th left rib was cut and a model of left coronary artery occlusion/release was carried outo Rats were divided randomly into 4 groups: control group without LCA occlusion (group A, n=6);I/R group(group B, n=6); ketamine(5mg.kg-1)+I/R group (group C, n=6); ketamine(10mg.kg-1)+I/R group(group D,n=6)o All rats in groups B, C , D were subjected to 30 minutes of LCA occlusion followed by 120minutes of reperfusion. Rats in group C and D were injected with 5mg.kg-1 and 10mg.kg-1 of ketamine before reperfusion, respectively. Significant electrocardiogram and color changes at the area at risk were considered indicative of successful coronary occlusion and reperfusionc Serum was exampled from left jugular vein at 30 minutes and 120 minutes during reperfusion to measure IL-6 and TNF- level by ELISA measurements. After reperfusion of 120 minutes, the heart was removed and the cardiac apex was exampled with snap-frozen in liquid nitrogen and stored at -70 C .

采用左冠状动脉前降支结扎开放建立心肌缺血／再灌注模型，健康SD大鼠24只，随机分为心包打开假手术组(A组，n=6)，缺血／再灌注对照组(B组，n=6)，5 mg·kg~(-1)氯胺酮+缺血／再灌注组C组，n=6，缺血30min后右腹股静脉注入5 mg·kg~(-1氯胺酮，10mg·kg~(-1)KTM+I／R组D组，n=6，缺血30min后右腹股静脉注入10 mg·kg~(-1氯胺酮。10％水合氯醛40 mg·kg~(-1)腹腔注射麻醉，气管切开，连接多功能监护仪记录心电图；小动物呼吸机人工呼吸，呼吸频率60次／分，潮气量2ml／100g，于左胸第四肋间打开胸腔暴露心脏，在左心耳下1mm左冠状动脉处，用丝线，眼科外用不锈钢小圆针穿过心肌浅层，稳定10min后将U型含有铜丝的胶管置于冠状动脉表面一起结扎(A组不结扎，B、C、D组结扎)；结扎开始左心室心尖部即由红色变暗，30 min后呈暗红色，心电图中出现S-T段抬高，说明缺血形成。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。