波群现象对海洋工程具有重要意义。
The wave group behaviour is important for ocean engineering and coast - al engineering.
两种方法的结合更利于QRS波群的检测。
介绍两种波群模拟方法及其在试验室里的应用。
This paper presents two simulation methods for wave group and gives their application in the laboratory.
现对宽qrs波群心动过速的诊断和鉴别诊断予以综述。
The article was the summary to diagnosis and differential diagnosis of wide QRS complex tachycardia.
讨论了波群发生概率，比较了不同的波群程度的描述方法。
Besides, the probability of occurrence of wave groups is discussed and various descriptive methods of wave group extents are compared.
结论无人区电轴可以做为宽qrs波群心动过速鉴别诊断的一项指标。
Conclusion The axis of "no man's land" can be used as a index of differential diagnosis of wide QRS complex tachycardia.
中枢神经系统的细胞通过在神经元上传播的电信号波群来进行彼此的沟通。
Cells in the central nervous system tend to communicate with each other via a wave of electrical signals that travel along neurons.
目的分析探讨心房颤动（房颤）伴宽QRS波群的心电图特征及鉴别诊断。
Objective To analyze the electrocardiogram characteristics of patients with AF complicated with wide QRS wave and the underlying differential diagnosis methods.
相关评价指标和绝对误差指标联合应用对QRS波群分辨率高达99.48%。
The resolution rate of QRS complex was 99.48% both with relative index and absolute error index.
当以平均波高无因次化，连长较大时波群中波高累积概率明显大于连长较小时情形。
Non-dimensionalized with average wave height, the accumulative probability of wave height in wave groups with long runs is remarkably larger than in wave groups with short.
小波分解对信号做多分辨率分解，可以突出信号的特征信息，便于QRS波群检测。
The wavelet transform does multi-resolution analysis on the signal which clarifies the electrocardiogram (ECG) signal characteristics to more easily detect the QRS complex.
当以平均波高无因次化，连长较大时波群中波高累积概率明显大于连长较小时情形。
Non-dimensionalized with average wave height, the accumulative probability of wave height in wave groups with long runs is remarkably larger than in wave groups with short runs.
本文运用安全池破损理论研究了由两个正弦波组成的波群和随机波作用下的船舶横摇。
In this paper, we will use the theory of safe basin to examine ship's rolling under waves composed of two sinusoidal wave and irregular wave.
方法应用心电图机描记常规12导联心电图，按心电图测量标准测量QRS波群电压。
Methods The voltage of QRS wave were measured with 12 leads electrocardiogram by electrocardiograph.
使用滤波器增强QRS波群，并结合峰检测和其他一些逻辑，实现了R波的准确定位。
Using this filter, peak detection and some other logic, an algorithm is developed that is able to locate the R-peak of QRS complex.
最后，在分析和模拟波列及按SIWEH方法模拟波群以后，提出用试算法模拟波群。
Finally, the authors, after analyzing and simulating wave trains and reproducing wave groups by means of SIWEH method, put forward the trial-calc…
宽qrs波群心动过速是临床常见的心血管急症，可见于室性心动过速和室上性心动过速。
Wide QRS complex tachycardia was the common clinical cardiovascular emergency case and it was occurred in ventricular tachycardia (VT) or supraventricular tachycardia (SVT).
计算了规则波和波群中系泊浮筒漂移运动的时间历程，讨论了其运动与波高、频差的关系。
The time history of drift motion of mooring buoy in regular wave and wave group is calculated. The relation between drift motion and wave height or difference of frequency is discussed.
目的：观察和比较静脉注射胺碘酮、普罗帕酮治疗宽qrs波群心动过速的即时疗效和安全性。
Objective: To compare the efficacy and safety of intravenous amiodarone and propafenone for broad QRS tachycardia.
对于R波，采用二级差分和极值方法定位，对QRS波群采用一阶导数与二阶导数并用算法进行检测。
The detection algorithm that adopts tow-level finite difference and extremal theory is used to locate the R wave and the one-level and tow-level derivative methods is used when detect QRS wave.
结论冠状动脉造影瞬间冠状动脉压力升高、短暂心肌缺血，可引起心电图QRS波群及ST_T的异常改变。
Conclusion During moment of coronary angiography, rised pressure of coronary artery and short_lived myocardial ischemia might lead to abnormal QRS _ wave and change of ST _ t in ECG.
目的使用能量变换与小波分解的联合算法检测心电信号QRS波群的特征点，为心电信号的自动分析提供新的手段。
Objective To find a new method for ECG autoanalysis of through the combination of energy transform and wavelet decomposition for detecting the characteristic point of QRS complex.
认为本文确定的18个监测导联的电极位置可客观反映18导联心电图的ST - T动态变化及QRS波群改变，可以推广。
Positions of 18 monitoring leads electrodes can reflect objective change of ST-T and QRS waves of routine 18-lead electrocardiogram. This method may be used widely.
QRS复合波群的形态变化是心律失常临床诊断的重要参考标准，因而准确地提取QRS复合波群的波形特征是心律失常自动化诊断中面临的关键问题。
As the variation of QRS complex wave is the primary reference criteria on clinical diagnosis of arrhythmia, exact extraction of the features of QRS complex wave is the key problem.
本课题基于小波理论设计软件算法，提出了模极值线群方法，抽取心电信号中若干具有临床价值的特征：QRS波群组态及其起点和终点、T波、S-T段。
In this paper, several characteristics of ECG from patients, such as QRS complex and its onset and offset T wave and S-T segment, has been detected using wavelet method.
由于采用双波长法得到的脉搏波信噪比较低，且脉搏波又不具有明显的特征(例如心电信号中有QRS波群)，因此常用的脉搏波波形识别方法正确检出率不高，经常出现漏检或误检。
But the pulse waveform obtained from this method merely has distinctive features such as the QRS complexes in ECG, so the ratio of correct detection of pulse waveform is always low.
正如你在照片里看到的，华盛顿州斯波坎市一家银行办公室的窗台下面，生活着一群绿头鸭。
As you can see in the photo, a group of mallards lives under the windowsill of a bank office in Spokane, Washington.
正如你在照片里看到的，华盛顿州斯波坎市一家银行办公室的窗台下面，生活着一群绿头鸭。
As the photos in this post show, there are a lot of mallard ducks that live on a ledge underneath the offices of a bank in Spokane, Washington.
波利斯基先生有一群搞建筑的朋友，还有一个由以前的集体农庄村民组成的安装艺术家团队，从2000年起，他们就开始利用那里的天然材料来制作大型雕塑了。
With architect friends and a team of collective-farmers-turned-installation-artists, Mr. Polissky has been making large-scale sculptures from natural materials in and around the village since 2000.
波利斯基先生有一群搞建筑的朋友，还有一个由以前的集体农庄村民组成的安装艺术家团队，从2000年起，他们就开始利用那里的天然材料来制作大型雕塑了。
With architect friends and a team of collective-farmers-turned-installation-artists, Mr. Polissky has been making large-scale sculptures from natural materials in and around the village since 2000.
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