x
uploads/wave velocity.jpg

wave velocity 【無線電】波速。

wave-hopping

Surface wave velocity detecting tests and dry density detecting tests by pit replacement method were conducted respectively for the transient material ( a ) and main rock - fill material ( b ) used in the construction of concrete - faced rock - fill dam of shuibuya project 摘要以水布埡面板堆石壩施工中的過渡料( a )和主堆石料( b )為主要檢測對象,分別進行了面波波速和試坑置換法干密度的對比檢測試驗。

In this paper , a project is used to show the applicablity of the relationship between shear strength of soft soil and shear wave velocity which can make up the disadvantage of rayleigh wave method just to determine the nature of soil 為工程瑞利波法評價地基土特性的應用提供更為適用的強度參數。工程應用表明,該式具有一定的適用性,能夠彌補現場瑞利波檢測不能定量反映地基處理效果的不足。

To study the changes of poisson ' s ratio and its anisotropy with confining pressure , we measured p - and s - wave velocities in three orthogonal directions in 19 rock samples under different confining pressures 為了研究不同巖石中泊松比及其各向異性隨圍壓的變化,選取19塊典型的巖石樣品,在不同圍壓下沿相互正交的3個方向同時測量縱、橫波速度,并通過計算得到了泊松比及其各向異性。

Using achievements gained by wave velocity test which contain abundant geophysical information , this paper deals with the sedimentary process and sedimentary environment of pleistocene - holocene sediments in the southern limb of the yangtze delta 摘要利用蘊涵著豐富的地球物理信息的波速測試成果,對長江三角洲南翼晚更新世全新世沉積物作沉積過程及其沉積環境討論。

The longitudinal wave velocity in saturated soil could not only be useful , but reflect more information as well . the shear wave velocity may be different from the shear sewv , the difference is proved to be caused by porosity and structure factor 認為潛水面下縱波速度能反映更多的信息,并且,橫波速度與骨架的橫波速度也可以由孔隙率及結構因子引起差異。

After adjustment for age , height , mean arterial pressure , and heart rate , aortic augmentation index correlated independently with the presence of migraine , the researchers note , but aortic pulse wave velocity did not 研究人員指出,在年齡、身高、平均動脈壓、心率調整以后,主動脈增加指數只和偏頭痛病人相關,但是脈沖速度沒有增加。

The results from regression analysis show : there exists good linear correlation between surface wave velocity and dry density detected at same place of compacted rock - fill layer , so a correlation equation may be established 檢測成果的回歸分析表明:同一種壩料的面波波速與干密度之間具有良好的線性相關性,可建立相關方程。

Get consistent rock parameters : p - wave velocity , porosity , and mineral properties of sands , fluid modulus and density . for multiphase fluids , we need to know properties and fractions of each component 獲取一致的巖石參數: p波速度,孔隙度和砂體的礦物特性,流體模量和密度。對多相位流體,我們需要知道每個分量的特性和組成。

The new vascular health test equipment uses advanced technology to assess arterial wall stiffness using pulse wave velocity ( pwv ) and occlusion through the ankle brachial index ( abi ) 血管健康測試儀器透過量度上肢及下肢血管的血壓,以計算pwv及abi讀數,分別量度出血管彈性程度和血管阻塞程度,更準確了解血管之健康狀況。

All subjects underwent spirometry , measurement of aortic pulse wave velocity ( pwv ) and augmentation index , dual - energy x - ray absorptiometry , and blood sampling for inflammatory mediators 所有的研究對象接受肺量測定法,測量主動脈脈沖速度和增強指數,雙能x線吸收儀和采集血樣分析炎性介質。

The effects of water ratio , crack , strain and temperature on the acoustic wave velocity in granite samples were investigated systematically by means of tico , an ultrasonic concrete tester 摘要應用超聲波混凝土測試儀( tico ) ,系統研究了含水率、裂紋、應力和溫度對花崗巖內波速傳播的影響。

Since mechanical properties of a material are closely associated with wave velocities , piezoelectric sensors provid a reliable and non - destructive method for the determination of soil properties 由于材料的物理性質與波速密切相關,壓電陶瓷傳感器提供了一種簡便可靠的無損檢測方法。

In numerical simulations , the maximum wave velocity is the only identification parameter . with the traditional models , the model in the paper is more convenient 武漢理工大學博士學位論文在數值實驗中,需要識別的參數只有最大波速,與其它模型比較,使用更加方便。

The study provides basic detection theory and practicel engineering experiences for popalarizing surface wave velocity method to detect dry density of compacted rock - fill layer in practice 本項試驗為推廣應用穩態面波法檢測干密度值提供了理論依據和工程實踐經驗。

In the meantime , fracture developing frequency of fuyu oil pay zone is analyzed and calculated by using ratio of vertical wave velocity “ crocodile factor ” method 同時,運用縱波波速的比值“龜裂系數”方法對扶余油層儲層的裂縫發育頻率進行了分析、計算。

Identifying the maximum wave velocity , the actual capacity can be calculated . the maximum wave velocity can be determined upon the data in low density 采用本文的公式計算實際通行能力時,只需要根據實測數據確定最大波速,而低密度的數據足以確定最大波速。

Are contrary to this ; the longitudinal and transversal wave velocities in different directions increase with the increase of salinity , while changes of the parameters of rock velocity anisotropy 減小2隨著礦化度的增加,巖石縱橫波速度增大,各向異性參數

By using the survey data in changchun city , the model was validated and the relative error between the theoretical and observed value of the stop - wave velocity is 3 . 85 % 利用長春市的調查數據標定了模型,得到停車波波速理論值與實測值之間的相對誤差為3 . 85 % 。

< uk > this clearly indicates that uniqueness is reached provided that the irrotational and equivoluminal wave velocities , and are real and nonzero . < / uk > < uk >這就清楚地表明,如果無旋波速度和等體積波速度是不等于零的實量,則唯一性是成立的。 < / uk >