查询词典 experimental method

The block-based fractal image compression method has a low compression ratio, so simple region-based fractal image compression is introduced, then the competitive region-based fractal image compression method is presented. The experimental results show that the compression ratio is effectively improved at a similar PSNR value.

由于基于块的分形图像压缩方法的压缩比不高，对此进行改进，先介绍简单的基于区域的分形图像压缩，然后提出基于区域的竞争分形图像压缩算法，并进行实验，实验结果表明，该方法在保持一定的信噪比的情况下，有效的提高了压缩比。

The research mainly focuses upon the unique deformation mechanism, forming method, quality control and parameter optimization, and the key technologies in Finite Element Analysis for the 3D Non-Axisymmetric thin-walled tube spinning. A CNC spinning equipment for the 3D Non-Axisymmetric thin-walled tube has been designed and manufactured based on the experimental investigation of the forming method.

着重研究变形机理、成形方法、质量控制及优化成形工艺参数，解决三维非轴对称零件旋压成形过程数值模拟关键技术；通过对成形工艺方法的试验研究，研制出能够旋压成形三维非轴对称薄壁空心零件的工艺装备。

From the experimental results, this paper analyzes the relations among the pipe-flow characteristics, solid characteristics, slurry characteristics and transporting method which affected resistance loss in two-phase flow, and does sensitive analysis by using standard regression coefficient method on important factors such as diameter of pipe, specific gravity, concentration and inclined angle to find the degree which have influenced.

根据实验结果，分析了管流特性、物料特性、浆体特性和输送方式对于两相管流阻力损失的影响关系，并首次采用多因素分析法对重要因素，如管径、比重、浓度、倾角等进行了敏感性分析，找出了其影响程度的大小关系。

Based on experimental data,adopting a finite volume method,a numerical simulation method is applied to the three-dimensional flow field about the air-to-surface missiles at high subsonic speed and during the different angle of attack.

三维流场的数值模拟是国外军事技术发达国家在飞行器设计过程中所采用的重要方法。

The experimental results show that the proposed method performs better than the fixed-length Least-Significant-Bits substitution method in DCT domain in terms of message capacity and image quality.

实验结果表明：该文方法在图像质量和信息嵌入量方面，都优于DCT域内固定嵌入位数的信息隐藏方法。

In this thesis, we propose a new method to estimate the VC-dimension through experimental procedures, which is not based on the supremum of risk discrepancies as used in the previous method.

本文在Vapnik方法的框架下，提出一种新的实验过程与估计公式，对原先的估算方法进行了改进。

In this paper, the following experimental and theoretical investigations have been carried out: friction materical behavior tests, structure model experiments under low frequency cyclic and reversed loading, structure model dynamic experiments on shaking talbe, researches on dynamic analysis method and engineering design method for braced frame structure with friction control.

对二级摩擦控制支撑框架结构进行了摩擦材料的试验研究、低周反复荷载下结构模型的试验研究、振动台的动力试验研究、结构动力分析方法的研究以及摩擦控制支撑框架设计方法的研究。

Then an improved method of Layer tetrahedron: Auxiliary contour method is described in detail and experimental results are given.

本文重点叙述了对断面层次四面体重构法的改进算法：辅助轮廓线法，并给出相应的实验结果。

Experimental results show that performance of using sum rule fused method for face recognition based on bit-plane decomposition is super to one of other face recognition's method.

结果表明，在基于位平面分解的人脸识别集成方法中，应用和规则的融合方法，其性能也优于其他的人脸识别方法。

Based on this method two algorithms which use the adjacent shortest transversal path to detect scene change are designed, and experimental results prove that this method is suitable to deal with the special effect around the anchor person shot in News TV program.

基于这种方法本文设计了用相邻最短遍历路径进行场景分割的两种算法，实验的结果证明这种方法在处理新闻节目的播音员镜头的特殊效果时是很有效的。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。