查询词典 artifacts

In order to eliminate the effect of artifacts in electroencephalograph signals, such as electrocardiogram and electrooculogram, etc., a new ICA method with multi-references is proposed based on the fixed-point algorithm and the ICA algorithm with references.

为消除脑电信号中的心电、眼电等伪差，在已有的不动点算法和带参考信号的独立分量分析算法的基础上，提出了一种多参考信号的独立分量分析方法。

A 40Hz event related potentialdetecting system is introduced here. The system employs the elliptic—type filters which have excellent edge features to extract signals of narrow band frequency . It exploits the correlation—threshold method proposed by us to cancel the musc1e artifacts.

详细介绍了我们建立的一套 40 Hz ERP(4 0 Hz事件相关电位)信号检测系统，该系统使用边缘特性最好的椭圆窄带滤波器提取窄带信号，采用我们提出的相关域值法很好地剔除了肌电干扰，并在微机上实现了实验自动化和结果自动统计。

Among the results of contrast medium chase DSA, 34 samples got clear images, only 2 samples of image showed movement artifacts. Different stenosis or emphraxis of below-popliteal arteries were existed in all patients, among them, 23 patients combined with severe stenosis of femoral superficial arteries.

结果：全部DSA检查均获得成功，对比剂跟踪DSA检查结果中，34例次造影图像优良，2例次采集的图像有移动性伪影；全部患肢均存在胭动脉以下血管不同程度的狭窄或闭塞，其中23例合并股浅动脉重度病变。

For giving definitions of flora and fauna as also of artifacts and other cultural items the lexicographer gives encyclopaedic information.

给植物和动物的定义和其他人工品、其他的文化项目方面，辞典编纂者也给百科全书提供了数据。

The compression artifacts are particularly obvious when a particle (cosmic ray or solar energetic, charged particle) hits the CCD detector on the spacecraft head-on.

当某个粒子（宇宙射线或者太阳活跃的能量，带电粒子等）击打在太空船头部的在CCD探测器之上时，铁压缩物就特别显得明显。

The compression artifacts are particularly obvious when a particle (co**ic ray or solar energetic, charged particle) hits the CCD detector on the spacecraft head-on.

当某个粒子（宇宙射线或者太阳活跃的能量，带电粒子等）击打在太空船头部的在CCD探测器之上时，铁压缩物就特别显得明显。

Based on the prior information obtained by qualitative inversion, the two stages inversion method was put forward. That is, the first stage is that distinguishing the high-quality element and non- high-quality element, and determining the initial iteration value of element sound velocity reasonably. The second stage is that treating differentially the constraint weights of the high-quality element and non- high-quality element, and then quantitatively inversing the final sound velocity distribution. The results of two concrete specimens indicate that the two stages inversion method can inhibit artifacts effectively and has better defect identification effect than normal one stage inversion.

在获取定性反演先验信息的基础上，提出了两阶段反演的方法：第一阶段，区分优质像元和非优质像元，合理确定像元声速的迭代初值；第二阶段，区别对待优质像元和非优质像元的约束权重，定量反演最终的速度分布。2个混凝土试件的模型试验表明，两阶段反演能有效抑制伪像，具有比常规的一阶段反演更好的缺陷识别效果。

In the surveys, some very closely spaced survey lines displayed remarkable differences in crustal structure. To find the reasons for the differences and to analyze the reliability of crustal structure, ocean bottom seismometer data from the west and east sides of the Dongsha Islands were reprocessed and inverted with tomography technique. The routine processing and inversion procedures include clock correction, position correction, finite-difference ray-tracing-based tomography, checkerboard test and comparison of the inverted crustal model with initial models. As a key step, we analyzed the lateral velocity resolution and smoothed out the short wavelength velocity variation which maybe most probably artifacts in the final velocity models.

在一些相隔很近的测线上，探测的深部地壳结构却相差较大，为了分析这些探测结果中差异的原因和地壳结构变化的可靠性，本文以东沙东侧海域测线和东沙西侧海域测线为例，对采集的海底地震仪记录进行了时间、位置校正和初至波走时拾取，利用有限差分地震走时层析成像进行了走时反演，获得所在剖面的地壳速度结构，并分析了模型的横向分辨率，剔除模型中短波长的横向速度变化。

This Folsom point comes from the New Mexico site of Blackwater Draw, where archaeologists also found the first artifacts of the Clovis, an older Native American culture. Folsom points were fluted along their entire length and were attached to shafts for use as spears.

这个福尔松锐器来自于新墨西哥的Blackwater Draw，这个地方也首次发现了一个古老的美洲土著人种克洛人的工艺品福尔松锐器刻成像笛子一样，被用来绑在木棍上做长矛。

Artifacts on exhibit range from Chinese bound foot shoes and ancient Egyptian sandals to chestnut crushing clogs and glamourous platforms.

从中国的贴脚鞋和埃及的凉鞋到栗木制成的木鞋和华丽的高前台时装鞋。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。