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- 저자 : Juanxiu Liu (검색결과 2 건)
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Guangming Ni,Lin Liu,Jing Zhang,Juanxiu Liu,Xiangzhou Wang,Xiaohui Du,Huimin Yue,Yong Liu 한국정밀공학회 2020 International Journal of Precision Engineering and Vol.21 No.2
Bump offsets have harmful effects on the quality of flex-on-glass (FOG) bonding in liquid crystal display (LCD) module industry. Here we report a novel automatic optical inspection (AOI) method to achieve fast inspecting FOG bonding bump offsets. Overcoming difficulties to image targets at different depths in light absorption medium when using ultra-short-exposure and high-speed imaging, the proposed method innovatively achieves inspecting FOG bonding bump offsets using differential interference contrast imaging based on spatial Poisson point process approximation. Theoretical analysis proves that the proposed method has high reliability in FOG bonding bump offset AOI inspection. Experimental results show missed detection rate of the inspection algorithm is 0.01%, and false rate is 0.1%, and verify the accuracy and validity of the proposed method, all of which are significant for guiding practice in LCD module industry.
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Fengsu Zhang,Hao Cai,Xunhong Liu,Fei Chen,Nianyun Yang,Ya Hou,Yang Ma,Yiyuan Luo,Juanxiu Liu 대한약학회 2021 Archives of Pharmacal Research Vol.44 No.9
To analyze the components of the fatty oilextracted from Antrodia camphorata fungus powder and toevaluate the antioxidant activity of A. camphorata crudeoil. A derivatized gas chromatography mass spectrometry(GC–MS) was developed for the quantification of 19 fattyacids in extracts of A. camphorata obtained by supercriticalcarbon dioxide (SC-CO2). Good separation was obtainedunder the optimized chromatographic conditions and 19target compounds after methyl-esterification were identifiedby GC–MS on a HP-VOC capillary column(60 m 9 320 lm 9 1.8 lm) with an initial temperatureset at 80 C. The validity of the established method wasexamined experimentally with good linearity, intra-assayprecisions, repeatability, stability and recovery. The antioxidantactivity of A. camphorata crude oil was evaluatedby 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical-scavengingassay. Nineteen fatty acids showed good linearityover the tested ranges (r[0.9956) and the recovery rangedfrom 93.47 to 104.89 %. The crude oil extracted from A. camphorata fungus powder also revealed its antioxidantactivity. It was the report about simultaneous determinationof 19 fatty acids in A. camphorata and antioxidant activityof its crude oil for the first time. The established methodmight also be utilized for the investigation of edible plantmaterials and agricultural products containing fatty acids.
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