Damage orientation detection of composite lamination using variation of frequency dactylogram 利用频率指纹检测复合材料层合结构的脱层损伤
The experiment proves, this method has to unqualified dactylogram image better filter the effect, be helpful for improving the efficiency of whole system. 实验证实,该方法对不合格的指纹图像有较好的过滤效果,有利于提高整个系统的效率。
Pivotal techniques and trends of dactylogram image transducer 指纹图像传感器技术关键及发展趋势
Some well developed techniques, such as dactylogram image capturing and processing, characteristic abstraction, comparison and matching, are among the most widely applied ones in the biology identification. Especially high quality image acquiring techniques are the most foundational, the most important links. 生物识别技术中发展最成熟、运用最广泛的指纹技术的应用涉及指纹图像采集、图像处理、特征提取、特征比对与匹配等,其最基础、最重要环节是高质量指纹图像采集。
Objective To accumulate the material on colony genetics and ethnology, the characters of dactylogram in left-arm folding people of Dong Nationality in Hunan Provice was studied. 目的对湖南侗族左扣手人群的掌纹分布特点进行研究,积累侗族群体遗传学与民族学资料。
There were 7 ( 23.3%) extended-spectrum beta-lactamases ( ESBL)-producing strains that were all resistant to 13 antibiotics, and the dactylogram showed that they were same genotype ( D). 筛选出了7株(占23.3%)产超广谱β-内酰胺酶菌株,它们对13种抗生素出现全耐药现象,指纹图谱显示均是同一基因型(D型)。
Analysis of Dactylogram in Left-Hand Clasping People of Dong Nationality in Hunan 湖南侗族左扣手人群的手纹分析
The techniques in dactylogram image capturing, as well as key points and features of performance are introduced. Technique application and development trends are also briefly discussed. 主要介绍各种指纹图像传感器技术关键、性能特点,并简要介绍其应用情况及发展趋势。
Method Printing the dactylogram with ink, and observing it by magnifier. 方法用油墨拓印法捺印手纹,放大镜下观察分析。
Dactylogram structure was observed in vivo. Variable form Giardia lamblia was observed. 观察到有的虫体内的指纹样结构和变异形态的虫体。
Experimental evidence manifests that structured dactylogram has good uniqueness, constantness and sensibility, and the two factor witch can cause inaccurate judgement are analysed later. Finally, the paper presents a program and implementation details and test results of the malicious code detection system for e-mail attachments. 之后通过实验证明结构指纹具有良好的唯一性、不变性及敏感性,并分析了影响结构指纹误判的两大因素。最后,本文给出了面向邮件附件的恶意代码检测系统的设计及实现细节以及测试结果。