The sediments of delta front around wave base plane are eroded by wave action and took along to redeposit below wave base plane, during which turbidite is formed. 波浪作用可以侵蚀浪基面附近的三角洲前缘砂体,并在回流作用下携带至最大浪基面之下再沉积,沉积过程中形成小型浊积体。
Stability analysis of slopes in the subaqueous delta of the Yellow River under storm wave loading 风暴潮作用下黄河水下三角洲斜坡稳定性研究
Analysis of Huanghe River Delta shallow water wave height and period 黄河三角洲海域浅水波高和周期的分析
The features of EEG abnormal changes were global or focus paroxysmal middle-high or extremely high voltage delta wave or mixed delta theta activity associated with sharp wave discharge, and in hyperventilation with 4-6c/ sec spike and wave complex. 脑电图异常改变以全脑或局灶性阵发性中~高或极高电位的δ波或δ、θ混合活动,伴尖波发放为特征,过度换气中可见每秒4~6次棘慢综合波。
The experiments suggest that trigger actions are the most important conditions to form fluxoturbidite in front of delta. Together with wave action and seismic process, the change of landform can promote forming fluxoturbidite. 实验结果表明,外界触发机制是形成三角洲前缘滑塌浊积岩的重要条件,底形的变化结合波浪、地震等外界触发机制的作用更容易在三角洲前缘形成滑塌浊积体。
Evolution prediction of the abandoned Yellow River Submerged Delta under wave and current 波流共同作用下废黄河河口水下三角洲地形演变预测模式
We use the boson surface delta interaction as the effective interaction be tween two bosons and the boson configuration mixing wave function to study energy spectra of nuclei of three bosons. 本文用玻色子表面δ力作为玻色子之间的有效相互作用,并用玻色子组态混合波函数研究了三玻色予核的能谱。
Moreover, Skewness and kurtosis of the logarithm power histograms of some characteristic waves in EEG, such as delta wave during SWS and theta wave during waking and REM, obtained high values. EEG在不同时期的某些特征波(例如:慢波睡眠期的δ波、清醒期和快动眼睡眠期的θ波等)使功率对数值分布具有较大的偏斜度值和峭度值。
There were statistically significant differences among these three groups ( P < 0.01) 2) The EEG characteristic of alpha wave come, desynchronization, spindle wave coma and delta wave coma were frequently seen in patients in coma and obnubilation. 在这三组中统计学上有显著差异(P<0.01)。(2)α波昏迷,去同步化,纺锤波昏迷和δ波昏迷脑电图在昏迷和意识混浊患者中常常可以出现。
In AD patients, the EEG abnormalities demonstrated that bilateral dysrhythmia of theta wave and delta wave in frontal lobe and occipital lobe, compared to AD, VD patients were associated with non synchronization; AD患者脑电图改变主要是双额叶及双枕叶的节律改变,以θ波及δ波为主要活动,而VD患者以不对称为主要表现;
There exist the different geomorphic types including the branching bay, submarine shoal, subfluvial bank, subaquatic delta, tidal current delta, tidal sand ridge, sand wave and caldron in the littoral zone. 滨海地貌主要有河口港湾、水下浅滩、水下岸坡、水下三角洲、潮流三角洲海底沙波、潮流沙脊、海釜等;
The modern Luanhe River Delta is a typical wave-dominated delta. 现代滦河三角洲属波控型三角洲。
Arenaceous material from large coastal sand body of the near delta, fan-delta and subsea alluvial apron was carried here by lake wave or fluid. 砂质的物质主要来自附近的三角洲、扇三角洲和水下冲积扇等近岸较大砂体,经湖浪和湖流搬运至此。
Local ventricular activation at the successful sites was ( 3137) ms earlier than the delta wave, and in four patients an accessory pathway potential was recorded. 成功靶点图:心室激动较体表心电图Δ波提前(31±3.7)ms,其中4例患者伴有旁路电位。
Results Compared with control, the ratio of non-rapid eye movement ( NREM) sleep and its delta wave decreased after restriction; 结果与对照组比较,限制型制动模型大鼠造模后觉醒时间增加、非快眼动(NREM)睡眠时间和δ波减少;