染色體畸變分析試齄 chromosome aberration a ay test; chromosome aberration assay test
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Datum deformation analysis and dynamic stochastic simulation for gps monito ring system 監(jiān)測系統(tǒng)基準形變分析與動態(tài)隨機模擬
The ill - posed problems include the ill - conditioned and the rank - deficient ones in geodesy , which exist widely in gps data processing , deformation analysis , geodesy inversion , gravity field continuation downward , and so on 大地測量中的不適定問題包括病態(tài)問題和秩虧問題,它廣泛存在于gps數(shù)據(jù)處理、形變分析、大地測量反演、重力場向下延拓等領(lǐng)域。
Firstly , i expound the important meaning of the monitor of big dam safety and the development and the present condition of big dam deformation analysis . secondly i generalize the past application study for fem , establish the displacement conclusive model of dam to explain physics reason from the water pressure , temperature , time limited efficacy three aspects analyze 然后,在總結(jié)前人對有限元的應用研究的基礎(chǔ)上,重點就大壩的變形和變形原因之間的物理解釋,從水壓、溫度、時效三個方面分析,建立了基于有限元大壩形變分析的確定性模型。
In the end i conjugate the inside observation and the external observation of dam , do the homological research to the inside observation and the external observation of dam . the main contents that this paper can be concluded as : 1 . to research finite element calculation mode for complicated problem in the mechanics 本文研究的主要內(nèi)容可歸納為: 1 、研究將有限元法作為求解力學中的復雜問題的數(shù)值解法的計算模式; 2 、基于有限元混凝土壩位移確定性模型的建立; 3 、確定性模型在三門峽大壩形變分析中驗證; 4 、大壩的內(nèi)、外部觀測新技術(shù)應用及響應性研究思路。
3 after analysed the deformation of the structures and fractures , predicted 2 - d fractural degree through the study of natural fracture net , indentified and evaluated fracture though logging data , analysed 3 - d seismic coherence data > counted the dip angle " s of strata etc , the distribution of fracture is pointed out , the prediction methods which combined with geological and geophysical technologies of the fractural zones in the tight sandstone is also presented 3通過構(gòu)造及斷裂形變分析、天然裂縫網(wǎng)絡二維裂縫度預測、測井裂縫識別與評價、地震三維相干分析、地層傾角計算等預測裂縫分布區(qū),提出地質(zhì)裂縫預測技術(shù)和地球物理裂縫預測技術(shù)相結(jié)合的致密砂巖儲層裂縫發(fā)育帶預測方法。