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efficient absorbing
相关语句
  高效吸收
     An efficient absorbing boundary for finite-difference time-domain field modeling in acoustics
     声学中用于时域有限差分法的一种高效吸收边界
短句来源
     Abstract: This paper presents a highly efficient absorbing boundary condition suitable for use in the finite-difference time-domain (FDTD) modeling of acoustic fields.
     本文提出一种用于声场时域有限差分法(FDTD)的高效吸收边界条件。
短句来源
  “efficient absorbing”译为未确定词的双语例句
     The most notable structural features of Si-NPA not only makes it has large surface area, but also provides a very effective pathway for vapor transportation and convenient to efficient absorbing and desorbing of gas molecules. Therefore the Si-NPA has latent application value for gas sensor in view of its unique feature.
     这种独特的结构体系在保持多孔硅表面多孔结构特征的同时,其表面形成的规则阵列构成了气体传输的有效通道,从结构特点上看Si-NPA直接作为敏感材料或作为衬底材料在气敏传感方面都有着潜在的应用价值。
短句来源
     Perfectly Matched Layer(PML) is an emerged efficient absorbing boundary condition emerged recently.
     理想匹配层(PML)是近年来迅速发展起来的一种非常有效的吸收边界。
短句来源
     In the finite-difference time-domain(FDTD) method,the perfectly matched layer(PML) is a kind of high efficient absorbing boundary condition.
     在时域有限差分算法中,完全匹配层是一种高效的吸收边界条件。
短句来源
  相似匹配句对
     efficient teamwork;
     有效的团队合作;
短句来源
     c)The efficiency of absorbing.
     c)吸收效率;
短句来源
     It is easy and efficient.
     该方法简单易行且有效。
短句来源
     ON ABSORBING SETS
     关于吸收集
短句来源
     Development of Extraction Efficient Element from Chinese Medicine by Macroporous Absorbing Resin
     大孔吸附树脂提取中草药有效成分的研究进展
短句来源
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  efficient absorbing
To address this issue, two efficient absorbing layers are discussed on the basis of suitable modifications to the stretching coordinate variables of the conventional PML.
      
Efficient Absorbing Layers for the Guided-mode Analysis Using the Imaginary-Distance BPM
      
The second is an accurate absorbing impedance boundary condition to represent open boundaries which is proved to be an efficient absorbing boundary.
      
In the context of dipole approximation it is established that the large optical absorption cross sections and attenuation coefficients in the quasi-zero-dimensional systems make it possible to use the systems as new efficient absorbing materials.
      
The PML is a very efficient absorbing boundary condition for linearized Euler equations for subsonic problems in CAA.
      


Abstract: This paper presents a highly efficient absorbing boundary condition suitable for use in the finite-difference time-domain (FDTD) modeling of acoustic fields. The new method seeks a least square estimate of a transfer matrix for field components near truncating boundaries by means of matrix pseudoinversion. The resulting absorbing boundary is considerably more effective than a number of existing ones. The method is also computationally economical and robust. The performance of the new...

Abstract: This paper presents a highly efficient absorbing boundary condition suitable for use in the finite-difference time-domain (FDTD) modeling of acoustic fields. The new method seeks a least square estimate of a transfer matrix for field components near truncating boundaries by means of matrix pseudoinversion. The resulting absorbing boundary is considerably more effective than a number of existing ones. The method is also computationally economical and robust. The performance of the new method is demonstrated by numerical experiments on a point-source radiation problem, a wedge diffraction problem, and a scattering problem in which a plane wave is scattered by a circular cylinder.

本文提出一种用于声场时域有限差分法(FDTD)的高效吸收边界条件。通过伪逆矩阵对截断边界附近网格线之间的转移矩阵作最小二乘估计,所得到的吸收边界条件性能明显优于多种常用方法。新方法的数值计算效率高,算法稳定。对点源辐射,尖劈衍射和圆柱体散射问题的FDTD数值计算结果显示了这种方法的优异性能。

Perfectly Matched Layer (PML) is one of the most efficient absorbing boundary condition recently developed in the world.In this paper,the unsplit PML method was further extended to the lossy media,and was applied to object detecting problems together with the FDTD method.The computing model,the loading of the antennas,and the selection of the PML coefficients were discussed.Also,the coupling between the transmitting and receiving antennas and the lossy medium was analyzed in detail.Finally,some examples...

Perfectly Matched Layer (PML) is one of the most efficient absorbing boundary condition recently developed in the world.In this paper,the unsplit PML method was further extended to the lossy media,and was applied to object detecting problems together with the FDTD method.The computing model,the loading of the antennas,and the selection of the PML coefficients were discussed.Also,the coupling between the transmitting and receiving antennas and the lossy medium was analyzed in detail.Finally,some examples were given,in which the antennas were scanning on the medium surface and there are arr cavity and metallic pipes existing in the lossy medium.The method and model presented in this paper are more close to realistic problems,and can be used to establish the data library of object detecting of lossy media,which is very useful to realistic applications.

完全匹配层是近年来迅速发展起来的一种非常有效的吸收边界.本文进一步将非分裂完全匹配层技术扩展到有耗媒质,并将它与时域有限差分法一起用于研究有耗媒质中的目标探测问题.文中具体讨论了计算模型、天线加载以及完全匹配层媒质参数的选取;详细分析了收发天线以及收发天线与有耗媒质之间的相互耦合关系.最后给出了有耗媒质中存在空洞、金属管等散射体时,天线在媒质表面扫描所得的波形图.本文中的方法和模型更接近实际,可用于建立有耗媒质中目标探测波形的数据库,供实际参考.

As important forage crops,legume forage plants can play an important role in improving natural environment, ma-intenins water and soil. With development of molecular biology and improvement of plant transformation techniques, molecular breeding of legume forage plants by biotechnology is possible. This review summarized recent progress on improvement of several forage crops,including improvement of nutrient quality,increase of biomass,enhancement of the assimilation and efficient absorb of nutrient element,and...

As important forage crops,legume forage plants can play an important role in improving natural environment, ma-intenins water and soil. With development of molecular biology and improvement of plant transformation techniques, molecular breeding of legume forage plants by biotechnology is possible. This review summarized recent progress on improvement of several forage crops,including improvement of nutrient quality,increase of biomass,enhancement of the assimilation and efficient absorb of nutrient element,and enhancement of abiotic and biotic stress resistance.

豆科牧草既是重要的饲料作物,又在土壤改良、水土保持,以及生态环境保护方面发挥着积极作用。随着分子生物学和植物转化技术的发展和改进,通过基因工程技术对豆科牧草进行改良和培育已成为可能。本文就近几年来基因工程技术在各种豆科牧草的高产、抗病虫害、抗逆及品质改良等方面的研究进展进行了较全面的综述。

 
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