1)  Dot-blot
斑点杂交试验
2)  Dot blot
斑点杂交试验(Dotblot)
3)  pattern
斑点
1.
The development of high-tech reconnaissance have impelled the development of measures in target pattern painting camouflage.
分析目标伪装所面临的侦察威胁,从人眼的分辨率和伪装斑点设计的原则出发,确定伪装斑点设计的基本单元的形状和尺寸,得出结论。
2.
The distribute characteristic of background image pattern which is the important basis for the implementation of camouflage,a method based on region growing is put forward to extract pattern of the background image.
提出了一种基于区域生长法的背景图像斑点提取方法。
4)  speckle
斑点
1.
New exploration of surface speckles of electronic-vacuum ceramics;
电真空陶瓷表面斑点新探
2.
A technique of speckle reduction in synthetic aperture radar(SAR) images was presented.
提出了一种新的SAR(Synthetic Aperture Radar)图像降噪方法,利用小波变换对空间位置信息保留的特性,依据小波变换后近似图像仍满足吉布斯分布,将模拟退火算法引入到小波域中,首先,根据SAR功率图像斑点的特性,对传统的同态变换方法做出了相应的修正,大大降低了处理结果的辐射偏差,提高了等效视数,然后在多分辨率理论和小波变换理论基础上,选用适合特定图像的最优小波基进行分解,最后对小波变换后的近似图像进行模拟退火处理,对各个细节图像有选择地进行软阈值处理。
3.
A new adaptive contourlet transform-based technique for speckle removal from SAR images is presented.
针对SAR图像斑点噪声的滤除,提出了一种新的基于Countourlet变换的快速自适应性噪声去除方法。
5)  spot
斑点
1.
There are many brown spots on the diamonds from Hunan Province, which is one of the three important diamond places in China.
湖南省是我国 3个主要金刚石产地之一 ,所产金刚石的表面有大量的褐色斑点。
2.
The surface topography and composition of normal coating and spot were investigated by scanning electron microscope and energy dispersion spectrum.
采用扫描电镜(SEM)结合能谱(EDS)的测试方法,对热处理前后含铬绝缘涂层中正常涂层和斑点的表面形貌及成分进行了分析。
3.
The intensity and the position of spots in image can be got through the GSDE image, and the spots are.
在带斑点图像复原的过程中,用不同方向的均匀算子与图像进行卷积,再与原图像相减,取灰度差最小值构成灰度差估计图。
6)  cathode spots
阴极斑点
1.
By using a Scanning Electron Microscope (SEM), the tracks of cathode spots on the surface of nanocrystalline Cu cathode produced after the first discharge with peak current of 10 A was investigated.
采用扫描电子显微镜(SEM)观察了纳米Cu阴极在峰值电流为10A的小击穿电流下首击穿后的阴极表面烧蚀形貌,发现纳米Cu的阴极斑点从产生到熄灭期间的运动(即短程运动)并不是随机的,而是有一定取向的;进一步通过和常规Cu首击穿烧蚀形貌对比,分析了产生有向运动的原因。
2.
The tracks of cathode spots produced after the first discharge on the surfaces of nanostructured and conventional W-Cu cathodes were investigated using a scanning electron microscope (SEM), and the influence of microstructure of composites on the morphology and movement of cathode spots was studied.
采用扫描电子显微镜观察了W-Cu复合电弧阴极材料首击穿后的表面形貌,研究了复合阴极材料微观结构对阴极烧蚀形貌和阴极斑点运动的影响。
参考词条
补充资料:斑点试验
分子式:
CAS号:

性质:又称斑点分析(spot analysis)。在滤纸上进行的点滴试验。取小块滤纸,用毛细滴管点加试液和试剂,以形成带色斑点对试样进行定性鉴定。滤纸具有毛细吸附性,使试液浓集,可提高鉴定反应的灵敏度;由于滤纸对不同的离子吸附能力具有差异,吸附力强的集中在中心,吸附力弱的向外扩散。当在纸上进行混合物的分析时,可直接达到分离的目的,省却了在容器中进行分离的冗长手续。

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