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- LIANG Jian-wen, Yan Lin-jun, Lee V W.Scattering of incident plane P waves by a circular-arc canyon with a covering layer[J].Acta Mechanica Solida Sinica, 2002, 23(4): 397-411. [2]梁建文; 严林隽; Lee V W.;圆弧形凹陷地形表面覆盖层对入射平面P波的影响[J]
- A series solution for surface motion amplification due to underground group cavities for incident plane P waves is derived by Fourier Bessel series expansion method. 采用波函数展开法,给出了平面P波入射下半空间中洞室群对地面运动影响问题的一个级数解答。
- The scattering and diffraction of plane P waves by circular-are alluvial valleys with water is studied in this paper.The Fourier-Bessel series expansion technique is used to solve this problem. 摘要利用波函数展开法，在频域内给出了圆弧形充水河谷对平面P波散射问题的解析。
- Plane P wave 平面P波
- plane P waves 平面P波
- A series solution for the effects of an underground circular lined tunnel on ground motion under incident plane P and SV waves is presented using the wave expansion method. 利用波函数展开法,给出了地下圆形衬砌隧道对入射平面P波和SV波散射问题的一个级数解答,当衬砌与半空间介质相同时,该解答退化为文献中的无衬砌隧道的解答。
- Plane P, Q tangent on the sphere S, point M on P, and N on Q. What's the distance of PQ? 说在一个长方形盒子外面贴一英寸厚的泡沫，给出长方形三条边为24，20，10，问泡沫体积.
- 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。
- Seismic surveying is largely concerned with the primary P waves. 地震勘探主要研究一次纵波。
- 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。
- 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)；
- The plane climbed until it was clear of the clouds. 飞机爬升穿出了云层。
- 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 flier is flying a new-type jet plane on trial. 飞行员正在驾驶一架新式喷气机作试验飞行。
- 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);
