An iterative algorithm is proposed for the inversion of elastic parameter layer in the two dimensional elastic wave equation, which makes use of multigrid method for the forward problem and pulse spectrum technique for the inverse problem,and avoids the Green function by the technique of variational principle.
提出了一种利用多重网格方法快速求解正问题，脉冲谱技术求解反问题，有限元技巧避开Ｇｒｅｅｎ函数计算的分层反演弹性参数的选代算法。
Soil moisture distribution, root-trunk sap flow dynamics and yields of peach trees under the condition of different root zone wetting patterns were investigated by means of Tube-TDR (Time Domain Reflectometry) and heat pulse technology.
采用管式-时域反射仪(Tube TimeDomainReflectometry,Tube TDR)和热脉冲技术,研究了分根交替灌溉对土壤水分分布和桃树根茎液流动态的影响。
Study on the Change of Sap Flow in the Stems of Populus euphratica Using Thermal Pulse Measurement;
应用热脉冲技术对胡杨树干液流变化规律的研究
Review of the Thermal Pulse Video Thermography Nondestructive Testing;
脉冲加热红外热成像无损检测技术回顾
Process Evaluation on Technology of Using Impulse Heat Lustrate Removing Oil from Offshore Drilling Cuttings and Study on Impulse Pipe Syringe;
海上钻屑脉冲热驱脱油技术的过程评价与脉冲管洗涤器研究
Experimental Studies on the Applications of Ultrasonic Pulse Thermography and Ultrasonic Burst Phase Thermography in NDT
超声脉冲及超声脉冲相位热像技术用于无损检测的实验研究
The Study on Temperature Field Model of the Pulse Photothermal Measurement;
脉冲光热测量技术中的温度场模型研究
Application of pulsed electric fields non-thermal pasteurization technology on dairy
脉冲电场非热杀菌技术在乳品工业中的应用
Comparison between pulse and lock-in infrared thermography technology
脉冲和锁相红外热成像检测技术的对比性研究
Application of Pulse-Firing Technology in Heating Furnace
脉冲燃烧技术在大方坯加热炉上的应用
Experimental study on the Temperature Measurement with Liquid Crystal and Its Application to Intermittent Jet Impingement Heat Transfer;
液晶测温技术及其在脉冲射流冲击换热中的应用研究
The Research of Pulse-burning Technology and Periodical Optimization in Regenerative Heating Furnace;
蓄热式加热炉脉冲燃烧技术及换向周期优化的应用研究
pseudo-random impulse response technique
伪随机脉冲响应技术
Pulse Current Hot (PCH) is an advanced technique for materials synthesis and processing with the characteristics of lower temperature and faster speediness.
脉冲大电流热加工是材料制备新技术之一,具有很大的发展潜力。
A new method of data processing used in pulse fast thermal neutron analysis technology is introduced.
介绍了一种应用于脉冲快热中子分析技术中的新解谱方法。
High Efficient Fusion-Brazing Joining Technology for Dissimilar Metals between Steel and Aluminium Alloy by Large Spot Nd:YAG Laser-Plused MIG Hybrid Process;
铝/钢大光斑Nd：YAG激光—脉冲MIG复合热源高效熔—钎连接技术
Study on Fabrication and Mechanism of Porous Materials by Pulse Current Heating;
多孔材料的脉冲大电流热加工技术制备及机理研究
Three Dimension Simulation and Analysis of the Pulsed Thermography Nondestructive Testing Technique Based on the Finite Element Method
基于有限单元法对脉冲热成像无损检测技术的三维模拟与分析
Study and Application of Multiplicative Impulse-heat Chemistry-high Energy-compound Fracturing Technology
宝浪油田多脉冲热化学加载复合压裂技术的研究
The Research on Impulse GPR Receiver Technique;
冲激脉冲探地雷达接收机技术的研究