震中常數 的英文怎麼說

中文拼音 [zhènzhōngchángshǔ]
震中常數 英文
constant of earthquake epicentre
  • 震 : Ⅰ動詞1 （震動） quake; shake; shock; vibrate 2 （情緒過分激動） be greatly excited; be deeply ast...
  • 數 : 數副詞（屢次） frequently; repeatedly
  1. And the explicit finite difference method, the combining method of the central difference method and newmark s constant average acceleration method, and the transmitting boundary are used. by comparing the acceleration determined by the several methods of the displacements or velocities, a computing method of acceleration employed the one side difference of velocity is more practicality in this research. corresponding to normal incidence of the body waves, p waves or svwaves, and rayleigh surface waves, two two - dimensional finite difference programs are compiled to compu te the dynamic response of two - phase media

    以土力學模型為基礎，利用以土骨架和孔隙流體的四個位移為基本未知量的數值方法去模擬二維飽水介質中的地震波傳播，採用了顯式差分方法（中心差分法和newmark常平均加速度法結合）和透射邊界，通過比較利用幾種差分格式求解的加速度結果，發現一種用速度單邊差分求解加速度的方法在本文研究中較為實用，分別編制了體波（ p波或sv波） 、 rayleigh面波輸入時求解兩相介質動力響應的兩個二維數值分析程序。
  2. Hi this thesis, the technique of detector array is used to obtain the location of anomalous infrasound, it is the basic of the study of prediction of earthquake. to derive useful information by using spectrum analysis on infrasonic signal. then combing with other methods a forecast could be made

    本課題主要是利用數字技術，採用用傳感器陣列計算異常次聲波波源的方位，這是今後預測震中位置研究的前提；並對次聲信號進行頻譜分析，提取有用的關于臨震次聲方面的信息，再結合其他的預報方法，作出準確的地震預報。
  3. Considering the characters of bp neural network, such as the simple structure, the advisable malleability, self - fitness, self - studying, nonlinear function approximating, the considerable abilities of parallel computing, fault - tolerant and so on, the bp algorithm have been extensively applied to the areas of system modeling, pattern recognition and seismic exploration since 1986. compared with other algorithms, as the above reasons, the bp algorithm has become the most usual and efficient solutions to the artificial neural networks

    由於人工神經網路中的bp神經網路結構簡單，可塑性強，具有良好的自適應、自學習、極強的非線性逼近、大規模并行處理和容錯能力等特點，自1986年rumelhart等人提出以來，被廣泛應用於系統建模、模式識別、地震勘探等重要領域。而bp演算法數學意義明確，步驟分明，是神經網路中最為常用、最有效、最活躍的一種方法。
  4. Data collection is the prophase of the seismic prospecting, it ' s very important

    數據採集是地震勘探中的前期工作，也是非常重要的環節。
  5. In young chickens aev induces paralysis, ataxia and muscular dystrophy, while in older chickens, infection is usually subclinical, resulting in a decline in egg production and hatchability. infectivity was shown to remain unaffected by chloroform, low ph, pepsin, trypsin and deoxyribonuclease. magnesium cations were shown to stabilise preparations of the virus against heat inactivation. the buoyant density of virions are 1. 31g / ml. the diameter of the virion was estimated to be 22 to 30nm. the aev can be adapted to grow in chicken embryo. the inability of aev to grow effeciently in most cell cultures

    幼雞感染該病毒后，引起麻痹、頭頸震顫甚至共濟失調，而成雞常呈亞臨床感染或導致產蛋量和孵化率下降。病毒的感染性不受氯仿、低ph 、胃蛋白酶、胰酶和脫氧核糖核酸酶的影響，鎂離子可增強病毒對熱的穩定性，病毒的浮密度為1 . 31g ml ，直徑為22 - 30nm ，該病毒主要在雞胚中增殖，在大多數細胞培養物中不生長。
  6. The envelop functions of ground motion for the small - moderate earthquakes in the near - source field are different with those of the larger earthquakes. there are not stationary part any more in the envelop function of these ground motions. after we analyze the characteristics of these envelope functions we take a exponent function instead the three part function

    近場的中小地震由於其在到震源的距離與震級方面的特殊性，其時程包絡函數的形狀與遠震、大震有很大的區別，在遠震、大震包絡函數中很常見的平穩段不再存在。
  7. We have summarized the experience for earthquake quick report of xichang telemetry seismic network. we present some thinking to improve error of source parameters in earthquake quick report

    摘要總結了多年來西昌遙測地震臺網在地震速報處理的技術經驗，針對地方遙測臺網在地震速報中經常出現的地震參數誤差問題提出了改進思路。
  8. In accordance with the damage data of gas pipelines collected in the chi - chi earthquake, the study assumes that the empirical fragility curves can be expressed in the form of two - parameter normal distribution functions

    文中配合集集地震時天然氣管線的災損資料，假設易損曲線為一個具兩參數的常態分佈函數。
  9. In the regions of the east plain, the geological conditions of the surface vary little, so the effective reflected waves in the original seismic data are relatively stable, the static correction problem and all kinds of disturbance are not much obvious and the signal - to - noise ratio ( snr ) is relatively higher

    在東部平原地區，由於地表地質條件變化不大，原始地震資料中有效反射波相對穩定，靜校正問題及各類干擾不十分突出，信噪比相對較高，在常規處理中都已形成了一套相對穩定的地震數據處理流程。
  10. In the research related to compression property theory, a constant related to the vertical stiffness of nrb and lrb has been found respectively, which is defined as compression stiffness factor. the simplified calculation theory of vertical stiffness is established based on stiffness factor

    在壓縮特性理論相關的研究中，發現並找到了天然橡膠和鉛芯橡膠隔震支座豎向剛度相關的一個常數，並將其定義為壓縮剛度因子，基於剛度因子建立了豎向剛度簡化計算理論。
  11. In seismic exploration, digital seismic instruments often inform the device ' s running conditions in spread to labors in the fields through radio, the labors in the fields feedback the checking results to instrument operators again

    在地震勘探中，數字地震儀器經常將野外排列地面設備的運行情況通過電臺通知地面人員，地面人員在將處理結果反饋給儀器操作員。
  12. ( 3 ) we can detection the azimuth of crack growth by abnormal amplitude or the discrepancy of wave - speed. ( 4 ) we can guess whether crack contains fluids by the change of p - wave speed. second, using pore model, under press and temperature, we have studied the influences of pore density on the characteristic parameters of seismic wave

    第一、利用人工裂縫模型，研究了裂縫密度、方位和張開度的變化對地震波屬性參數的影響，根據實驗結果，總結出：可利用橫波分裂的不同程度來檢測裂縫密度的高低；可利用縱橫波的振幅、主頻、衰減（或品質因子q ）和主振幅的變化來檢測裂縫張開度的變化；可利用速度的差異和振幅異常來檢測裂縫發育的方向；可利用縱波速度的變化來推測裂縫中是否含流體。
  13. To analyze conveniently, analysis personnel regularity need to make the operation of background color filling, anode 、 cathode filling, gradual change filling of anode and cathode to eliminate burr phenomena and mosaic phenomena during the filling process. earthquake interpret deal with a lot of data, a mass of proportion operation, coordinate conversion and coordinate mapping must be dong in the plot process, it may frequently appears the phenomena of memory deficiency, graphics refurbish in low speed, graphics overlap and twinkle, so it make use of the technique of memory mapping document, memory dc plotting and local plotting twice and so on to implement quickly and top - quality plotting of lots of gigantic graphics and implement continuous and rolling display

    分析人員為了方便分析，也經常需要把波形進行底圖彩色填充，正級、負級填充，正負極的彩色漸變填充，並消除在填充過程中出現的毛刺現象、馬賽克現象。因地震解釋所涉及的數據量很大，在繪圖過程中要進行大量的比例運算、坐標轉換及坐標映射等，就會經常出現內存不足、圖形刷新速度過慢、圖形重疊和閃爍等現象，所以需要採用內存映射文件、內存dc繪圖、局部重繪等技術，實現大數據量巨幅圖形的快速度、高質量繪制以及圖形的連續滾動顯示。
  14. The deformation analysis was made to a 12 storey reinforcement concrete structure, building in site condition ii, earthquake fortification level 8, by a program idarc - 2d which is put forward by the state university of new york at buffalo. the strong ground motion records obtained from pacific earthquake engineering research ( peer ) stiong ground motion database. thirty - eight waves were selected from the database by sorting the site condition and peak ground acceleration a comparison was made to the thirty - eight records " response spectra and the design response spectrum. thirteen waves were selected to the deformation analysis, el - centro wave and taft wave were added as a comparison. the result of computation shows that the selected waves damaged the structure severely than the el - centro wave and taft wave

    利用idarc - 2d對一建於8度類場地上的12層鋼筋混凝土框架結構進行了大震下的變形驗算。強震記錄取自加州國家地震中心強震數據庫，按場地類別和峰值加速度對數據進行分類處理，從中選出38條波進行反應譜的擬合。最終選定擬合較好的13條波進行本次試算，作為比較加入了常用的el - centro波和taft波。
  15. The paper deduced movement and wave equation of seismic wave field in constant q viscoelastic media using the method of pseudo - spectral, and carried on forward modeling, the modeling result is the same with the one of other modeling ways

    摘要本文採用偽譜法推導了常q粘彈介質中地震波場的運動方程和波動方程，並進行了地震波場數值正演模擬，模擬結果達到了其它模擬方法同樣的效果。
  16. During the oil and gas exploration, there collects much information concerning geo - physical exploration, geo - chemical exploration, remote - sensing and geology exploration. how to mine valuable information and knowledge from all these data is a big problem

    在油氣勘探過程中，所涉及的技術手段較多，通常有物探（包括地震、磁法、大地電磁法、電法等）化探、遙感、地質勘探等等，因此積累了大量的種類繁多的勘探數據。
  17. In this paper, the author explores the possible relation of deformation anomaly with distant earthquake, it has found out that 12 anomalies in strain or tilt observed at panzhihua station appears 10 days before 13 earthquakes with magnitude more and equal to 5. 9 occurred in north western china during period from 2000 to 2005, and the epicentual distributions show a regular pattern

    本文研究了攀枝花多次形變異常結束后10天內的首發中強地震與異常之間的相關性，發現西北地區2000 - 2005年5 . 9級以上地震震中（絕大多數作為異常后的首發地震）分佈具有較好的規律性。
  18. Using " identity " idea and anomaly criterion of slave function, remain curve and original curve deviation etc, a set of medium - term, short - term and imminent term anomaly of the moderately strong earthquakes, especially those with intensity v above magnitude 5 earthquakes are extracted

    運用「同一化」思路、從屬函數、剩餘曲線及原始曲線均方差等異常判定方法，提取了中等以上地震，特別是5級以上地震的中、短、臨異常實例。
  19. Through the study, we can conclude that improper slave function shows fairly good earthquake - reflecting capacity to earthquakes with ms 5. 0 in eastern china, which can be regarded as comprehensive parameter to the medium - term and short - term earthquake prediction and can determine three elements of an earthquake more exactly

    結果表明，異常從屬函數對發生在華東地區的ms 5 . 0地震有較好的映震能力，可作為中期、中短期預報的綜合指標，對地震三要素可作出較為準確的判定。
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