Ultrathin Arrayed Camera with 3D Capillary Filling Method for Fingerprint Imaging (Conference Presentation)

Author(s):  
Sang-In Bae ◽  
Kyung-Won Jang ◽  
Ki-Soo Kim ◽  
Ki-Hun Jeong
2003 ◽  
Vol 15 (17) ◽  
pp. 3247-3249 ◽  
Author(s):  
Lei Cao ◽  
Hong-Zheng Chen ◽  
Han-Ying Li ◽  
Han-Bo Zhou ◽  
Jing-Zhi Sun ◽  
...  

Author(s):  
Masayoshi YOSHIMURA ◽  
Yoshiyasu TAKAHASHI ◽  
Hiroshi YAMAZAKI ◽  
Toshinori HOSOKAWA
Keyword(s):  

Cellulose ◽  
2021 ◽  
Vol 28 (15) ◽  
pp. 9751-9768
Author(s):  
Teija Laukala ◽  
Sami-Seppo Ovaska ◽  
Ninja Kerttula ◽  
Kaj Backfolk

AbstractThe effects of bio-based strengthening agents and mineral filling procedure on the 3D elongation of chemi-thermomechanical pulp (CTMP) handsheets with and without mineral (PCC) filling have been investigated. The 3D elongation was measured using a press-forming machine equipped with a special converting tool. The strength of the handsheets was altered using either cationic starch or microfibrillated cellulose. Precipitated calcium carbonate (PCC) was added to the furnish either as a slurry or by precipitation of nano-sized PCC onto and into the CTMP fibre. The 3D elongation of unfilled sheets was increased by the dry-strengthening agents, but no evidence on the theorised positive effect of mineral fill on 3D elongation was seen in either filling method. The performance of the strengthening agent depended on whether the PCC was as slurry or as a precipitated PCC-CTMP. The starch was more effective with PCC-CTMP than when the PCC was added directly as a slurry to the furnish, whereas the opposite was observed with microfibrillated cellulose. The 3D elongation correlated positively with the tensile strength, bursting strength, tensile stiffness, elastic modulus and bending stiffness, even when the sheet composition was varied, but neither the strengthening agent nor the method of PCC addition affected the 3D elongation beyond what was expectable based on the tensile strength of the sheets. Finally, mechanisms affecting the properties that correlated with the 3D elongation are discussed.


Author(s):  
Xiaodong Chen ◽  
Haitao Liang ◽  
Huaiyuan Xu ◽  
Siyu Ren ◽  
Huaiyu Cai ◽  
...  

Soft Matter ◽  
2012 ◽  
Vol 8 (41) ◽  
pp. 10738 ◽  
Author(s):  
Fabien Chauvet ◽  
Sandrine Geoffroy ◽  
Abdelkrim Hamoumi ◽  
Marc Prat ◽  
Pierre Joseph
Keyword(s):  

1992 ◽  
Vol 14 (3) ◽  
pp. 226-227
Author(s):  
Osamu Hori ◽  
Yusuke Maeda ◽  
Tsutomu Asai ◽  
Masahito Kusunoki ◽  
Jun Shirai

2014 ◽  
Vol 621 ◽  
pp. 121-126
Author(s):  
Hui Fan ◽  
Yang Pei Zhao

Laminated templates electroforming (LTE) is one kind of metal-parts directly forming technologies which are based on discrete/accumulation theory. This paper introduces the forming principle, equipment configuration and experimental studies. By using templates as auxiliary tool and jet electroforming as filling method, the current density of electroforming was significantly improved and a group of copper parts in specific shape were fabricated. Experimental results show that on-load voltage, nozzle diameter, spray distance, spray flow velocity have direct influence on processing speed and locality. A small diameter of nozzle and short spray distance helps to achieve a precise locality and good dimensional accuracy, after process parameters have been optimized.


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