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- Objective To study the relation between P wave dispersion, P wave width and paroxysmal atrial fibrillation. 目的研究心电图P波离散度、P波宽度与阵发性心房纤颤的关系。
- The P wave, or compressional wave, alternately compresses and expands material in the same direction it is traveling. 波，或称压缩波，在其传播过程中在同一方向交替压缩和拉伸介质（见上图）。
- Conclusion P wave maximum width or P wave dispersion is a dependable sign to predic... 结论P波离散度、P波最大宽度为一种预测阵发性心房纤颤的可靠指标。
- About characteristics of P wave on ECGs these students were closer ordinarily healthy people than athletes. 以上现象男生较女生明显，体育专业学生的P波比运动员接近一般正常人。
- Conclusion ECG P wave amplitude changes are a useful standard in evaluating hyperthyroidism therapy. 结论心电图P波振幅的变化可以作为评价疗效的指标。
- Seismic surveying is largely concerned with the primary P waves. 地震勘探主要研究一次纵波。
- The latencies of P wave evoked through nasal retina were more significantly prolonged than that through temporal retina (P＜0.01). (2)半侧视野刺激斜视眼除鼻颞侧刺激P波潜伏期均延长外，同眼鼻侧视网膜P波潜伏期明显长于颞侧(P＜0.;01)；
- Meanwhile, some noninvasive surface EKG parameters such as P wave dispersion show promising application in the field of predicting AF. 一些无创的体表心电图指标如P波离散度等被认为能预测房颤的发生。
- The P wave impedance forward modeling technique is a conventional forward method based on reflection coefficient calculation. 波阻抗模型正演技术是一种基于反射系数计算的传统正演技术。
- The specificity of negative P wave in lead I and aVL that indentifed a left atrial focus was 100% and 95% respectively, but the sensitivity was only 30% and 50% respectively. I导联和aVL导联P波负向预测左房房速的特异性分别达到了 10 0%25和 95%25 ,但敏感性分别仅有 30%25和 5 0%25 ;
- A new simple approach to effectively detect QRS-T complexes in ECG curve is described, so as to easily get the P wave (when AF does not happen) or the f wave (when AF happens). 提出了一种简便有效的、由心电图(ECG)曲线提取QRS-T复合波的新方法,从而获得P波(当房颤未发生时)或f波(当房颤时);
- The flowing granular media are taken as weak transverse isotropic media,and the phase velocity expressions of P wave,SH wave and SV wave are deduced accordingly. 把流动中的散体看作弱横观各向同性介质,给出了P波、SH波和SV波的速度表达式,分析了它们在流动散体介质中的传播特点。
- Objective To investigate the application of P wave width in electrocardiography (ECG) in optimizing atrioventricular delay (AVD) for dual-chamber pacemaker. 目的:探索以心电图P波宽度优化双腔起搏器房室间期(AV间期)的方法,以期获得良好的血流动力学效果。
- Dogan A,Ozaydin M,Nazli C,et al.Does impaired left ventricular relax-ation affect P wave dispersion in patients with hypertension.Ann Noninva-sire Electrocardiol,2003,8:189. 中华医学会心血管病学分会.;慢性心力衰竭诊断治疗指南
- AVO phenomenon of seismic reflection waves can be seen in both P wave andP-SV wave. 地震反射波振幅随炮检距变化的规律（AVO）不仅P波存在，而且P－SV波也同样具有AVO特征。
- C VSP logging data contains plenty of information about seismic waves such as P waves and converted S waves. VSP三分量测井记录含有丰富的地震波场信息 ,除纵波外还有转换横波资料。
- Objective:To compare the electrocardiographic P/ PR segment,width of P wave and P wave terminal force in lead V1(PTFV1) in evaluating the change of left ventricular structure and function in hypertensive patients. 目的:比较心电图Macruz值(P/PR段)和P波宽度及P波终末电势(PTFV1)对判断高血压病左室结构和功能改变的作用。
- Methods:The maximum P wave duration and the minimum P wave duration(Pmin) of 12-lead -electrocardiograms of 55 cases with essential hypertension accompany atrial arrhythmia and 55 cases non atrial arrhythmia,Analyse P wave dispersion. 方法 :测定55例原发性高血压伴房性心律失常及55例非房性心律失常(对照组)的同步12导联心电图 ,P波最大时限(Pmax)和P波最小时限(Pmin) ,Pd=Pmax-Pmin。 并进行比较。
- The velocity models obtained by using different data selection criteria and parametrization display similar basic features,showing a high P wave velocity at shallow depth in the SE quadrant, in close connection with a high gravimetric Bouguer anomaly. 选择了几种判别标志与参数化办法以显示其类似的基本特征。 表明在火山的东南象限在浅层，有P波的高速分怖，它同布格重力高异常有密切关系。
- Amplification of P waves by flexible space is analyzed by exact dynamic-stiffness matrix of soil and half-space in frequency domain. 利用土层和半空间的精确动力刚度矩阵,在频域内求解并分析了弹性半空间场地对P波的放大效应。
