隨機非均勻性 的英文怎麼說
中文拼音 [suíjīfēijūnyúnxìng]
隨機非均勻性
英文
random inhomogeneity- 隨 : Ⅰ動詞1 (跟; 跟隨) follow 2 (順從) comply with; adapt to 3 (任憑; 由著) let (sb do as he li...
- 機 : machineengine
- 非 : Ⅰ名詞1 (錯誤) mistake; wrong; errors 2 (指非洲) short for africa 3 (姓氏) a surname Ⅱ動詞1 ...
- 均 : Ⅰ形容詞(均勻) equal; even Ⅱ副詞(都; 全) without exception; all
- 勻 : Ⅰ形容詞(均勻) even Ⅱ動詞1. (使均勻) even up; divide evenly 2. (分出一部分) spare
- 性 : Ⅰ名詞1 (性格) nature; character; disposition 2 (性能; 性質) property; quality 3 (性別) sex ...
- 隨機 : random stochasticrandom
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The ionosphere is a complex medium, which is aeolotropy, asymmetry, dispersive and changes randomly with time. in order to improve the communication quality of the shortwave that depends on the ionosphere, we should have aknowledge of the current condition of the ionosphere in real time. the backscatter sounding of high frequency can diagnose the real - time channel characters for shortwave communication or hf radar, which is great assistant to shortwave communication and hf radar
電離層是隨機時變,各向異性,非均勻、色散的復雜介質。為了保證依賴于電離層進行的短波通信質量,必須了解電離層的實時狀態信息。高頻返回散射探測可以實時監測與短波通信或高頻天波雷達相關的天波傳播通道的狀態,對短波通信和天波雷達工作起了重要的輔助作用。The macro - mechanical properties ( the elastic constants ) of the fractured rocks can be connected with the micro - parameter of crack ( crack number density )
這個模型將微觀隨機參數(裂紋數密度)與非均勻裂縫介質的宏觀性質(彈性常數)直接聯系起來。Advancement of stochastic modeling for non - stationary groundwater transport and interaction between small - scale heterogeneity and large - scale non - uniformity
地下水非平穩隨機模型及空間變異性與非均勻性相互關系研究的展望In this dissertation, the radiometric calibration of camera was performed, and researched the influence of non - uniformity of sensors response to calibration, calibration precision was improved by reducing the influence of random noise to calibration by processing the data of calibration by using wiener filtration. the radiometric calibration coefficients are determined by measuring the output data of camera and the temperature of blackbody
本文對紅外相機進行輻射定標,研究了探測器響應的非均勻性對定標的影響,並通過採用wiener濾波技術對所採集的數據進行濾波處理,減小隨機噪聲對定標的影響,提高了定標的精度,最後通過測量黑體溫度和相機輸出數據完成紅外相機輻射定標。Through the settling and analysis of these data, we find that the seabed sediments intensity appears heterogeneity on the plain and the profile under the action of wave loading, i. e., the random or periodic variation of seabed soil intensity in the plain, and hard soil layer in certain depth under the bottom
發現在波浪作用下,黃河口沉積物強度出現了非均勻化,即在平面上,沉積物強度呈現隨機性或間隔性變化;在剖面上,海底面之下一定深度范圍有硬層發育。The effects of heterogeneous anisotropic random fractured rocks with different autocorrelation length and different autocorrelation function were discussed. the results show that : l ) the scattering effects become weaker when the autocorrelation length becomes larger. 2 ) the exponential ellipsoidal random fractured rock has different scattering effects on waves in different coordinates direction, and 3 ). the gaussian random fractured rocks has the same
通過模擬發現: 1 )隨著自相關長度的增加,巖石的非均勻性對波的散射作用減弱; 2 )指數橢圓型隨機裂縫巖石對彈性波在兩個坐標方向上造成的散射不同; 3 ) gaussian型隨機裂縫巖石對彈性波在兩個坐標方向上有相同散射作用。Based on the theories of nonlinear finite element monte - carlo stimulation techniques, mathematical methods for generating uniformly distributed n ( 0, 1 ) random numbers are described. a comprehensive evaluation method for uniformly distributed random number is presented. some good seeds have been selected out that can be used to generate uniformly distributed random sequences with better performance
本文以非線性有限元理論和蒙特卡洛隨機模擬理論為基礎,描述了均勻分佈的n ( 0 , 1 )隨機數產生的數學方法,並編制了計算機程序,對由軟體產生的均勻分佈序列的隨機數性能進行各種檢驗,檢驗成果是良好的,可用於產生各種概率分佈的隨機變量值。In this paper, a new heterogeneous anisotropic constitutive model of fractured media was presented, and the properties of elastic waves excited from a two - dimensional ( 2d ) point source propagation in 2d fractured rocks were investigated by the pseudo - spectral method ( psm )
本文提出了一種新的非均勻各向異性隨機裂縫介質本構模型,用偽譜法模擬了二維點源產生的彈性波在二維復雜巖石中的傳播。1. upon brief reviewing current mathematical and physical models and mechanisms for electrorheological effect, the theoretical analysis of the dielectric relaxation of electrorheological fluids and the frequency - inducing characteristics for electrorheological effect are conducted. based on statistical thermodynamic analysis and osmotic pressure calculating of an electrorheological fluid complex system, phenomenological theory is adopted to evaluated phase reparation characteristics. thus critical factors corresponding to experimental results are introduced
在簡要評述現有電流變效應模型及機理的基礎上,按非均勻介質對雙相復合懸浮液的電流變效應進行理論分析,研究了電流變效應頻率誘導特性;基於復合系統滲透壓的計算,採用統計熱力學唯象理論,討論了電流變效應的相分離特徵,獲得了與實驗吻合的臨界參數;首次將定向滲流模型應用於電流變體臨界體積濃度的分析,得出一個描述電流變流體特徵而不隨外加電場變化的臨界體積百分數為0 . 37 。The development from traditional research of layered media to heterogeneous anisotropic media and to random media, is required to solve the problems in petroleum exploration
摘要從傳統的層狀介質研究發展到對非均勻各向異性介質乃至隨機介質研究,是解決當今高難度油氣勘探和高標準油氣開發問題的需要。Then, using the large - scale coarse grained soil test system, the relative density and direct shear characteristics of sand - gravel mixtures in different size distribution were tested. and the soc affecting mechanism derived from non - uniform granular material was discussed. the phenomenon can be observed that, along with the increase of non - uniform degree, the accumulate structure will become more complex, and the sliding resistance among sands will grow accordingly
在此基礎上,利用大型粗顆粒實驗系統,測定不同非均勻系數沙石材料的相對密度和直剪特性,探討了顆粒非均勻程度對自組織臨界性影響的具體物理力學機制:隨著非均勻度的增大,散粒堆積體的顆粒結構空間分佈堆積方式的多樣性增大,顆粒滑動的摩擦耗能增加。As examples, heterogeneous anisotropic fractured rocks of which the autocorrelation functions of crack number density can be described as 2 - dimensional exponential ellipsoidal or gaussian function were simulated especially. the results show that : 1 ) the random distribution characters could be different for different elastic constants under the same random distribution of crack number density. 2 ) the exponential ellipsoidal heterogeneous anisotropic random fractured model could be a suitable model for the multi - scaled and self - similar heterogeneous media
模擬結果表明: 1 )彈性常數的分佈特徵與裂紋數密度的分佈特徵不相同,並且裂紋數密度對不同的彈性常數有不同程度的影響; 2 )指數橢圓型隨機裂縫模型適用於模擬具有多尺度、自相似的特性非均勻裂縫巖石; 3 ) gaussian型隨機裂縫模型適用於模擬單尺度、平滑的非均勻裂縫巖石。3 ) on the other hand, the gaussian heterogeneous anisotropic random fractured model might be a suitable model for the single - scaled and smooth heterogeneous media. the propagation of elastic waves, excited by an explosive point source in exponential ellipsoidal and gaussian heterogeneous anisotropic random fractured rocks, were simulated
模擬了爆炸點源產生的彈性波在指數橢圓型、 gaussian型非均勻各向異性隨機裂縫國防科學技術人學研究生院學位論文巖石中的傳播,討論了具有不同自相關長度的或者不同類型的非均勻各向異性隨機裂縫巖石對彈性波的散射。分享友人