The same computational code was also used to reconstruct the reverse time image 相同的計算機程式并用以推求空間逆時影像。
In this study , we applied the reversibility of elastic wave to a discussion of the reverse time propagation of wave equation 摘要本文應(yīng)用波動方程式的可逆性討論彈性波的逆時影像重建。
Although direct waves are much stronger than scattering wavefields , the imaging of the underground anomaly is still well reconstructed from the reverse time process 即使利用含有非常明顯直接波信號的歷時記錄亦可有效的重建地下散射體的影像。
Thirdly , it simulated the pumping circuit & dividing circuit with the widely used software matlab / simulink . the displacement of the rod piston and the impact of hydraulic are analyzed in the different input flow ( frequency of pump ) and different reversing time . it found out the cause of hydraulic impact ( one - to - one incorrespondence between the response time of dividing circuit and the operation time of rod piston ) , and gave some methods to weaken hydraulic impact . in the final part of the paper , the reliability of the theory analysis is further verified by the experiment of hydraulic system 首先在流變學(xué)原理的基礎(chǔ)上,深入分析混凝土在輸送管道內(nèi)的流動狀態(tài),得出混凝土泵的負載特性方程;然后根據(jù)功率鍵合圖的建模方法,建立泵送回路和分配回路的數(shù)學(xué)模型,并運用仿真軟件matlab simulink對泵送和分配回路模型進行了仿真,分析了在不同的輸入流量(泵送頻率)和換向時間下,活塞桿的位移和系統(tǒng)的液壓沖擊情況,找到了引起液壓沖擊的根本原因(即分配回路的響應(yīng)時間(固定值)與活塞桿的運動時間(變化值)不相匹配) ,并提出了相應(yīng)的改進方法。
百科解釋
Reversing Time is the first studio album of the Greek - Turkish band Dreamtone & Iris Mavraki's Neverland, released in February 2008. Hansi Kürsch (Blind Guardian) and Tom S.