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| 1 | 采用铜导电油墨在改性柔性基材上实现喷墨印刷显示文摘本文采用铜导电油墨在聚酰亚胺(PI)薄膜上进行喷墨印刷形成铜导电层,并研究基于铜络合物的铜导电油墨与柔性基材的相关性。本研究首先采用氧等离子体对PI薄膜表面进行改性,以测试接触角来表征改性前后薄膜表面性能的变化。通过优化等离子体反应参数使接触角降低。再利用喷墨印刷在改性前后PI薄膜上沉积铜导线,在200℃氢气环境下进行热处理,印制铜线发生烧结而收缩。采用光学显微镜(OM)、场发射扫描电子显微镜(FESEM)、X射线衍射(XRD)、非接触式三维轮廓仪和四点探针分析铜导线形状、微观结构、晶体结构及电导率。结果表明,经氧等离子体改性的PI基材上可成功沉积具有纯铜相的连续铜导线且具有良好的烧结微观结构,同时确定了铜导电油墨与基材表面性能的相关性。 | GOO Yongsung LEE Youngin KIM Namwoo LEE Kunjae YOO Bongyoung HONG Sungjei KIM Joong-do CHOA Yongho 王晓芳 | 2010 | 中国印刷与包装研究2010，，5： | 4 |
| 2 | Easy calibration method of vision system for in-situ measurement of strain of thin films显示文摘An easy calibration method was presented for in-situ measurement of displacement in the order of nanometer during micro-tensile test for thin films by using CCD camera as a sensing device. The calibration of the sensing camera in the system is a central element part to measure displacement in the order of nanometer using images taken with the camera. This was accomplished by modeling the optical projection through the camera lens and relative locations between the object and camera in 3D space. A set of known 3D points on a plane where the film is located on is projected to an image plane as input data. These points, known as a calibration points, are then used to estimate the projection parameters of the camera. In the measurement system of the micro-scale by CCD camera, the calibration data acquisition and one-to-one matching steps between the image and 3D planes need precise data extraction procedures and repetitive user's operation to calibrate the measuring devices. The lack of the robust image feature extraction and easy matching prevent the practical use of these methods. A data selection method was proposed to overcome these limitations and offer an easy and convenient calibration of a vision system that has the CCD camera and the 3D reference plane with calibration marks of circular type on the surface of the plane. The method minimizes the user's intervention such as the fine tuning of illumination system and provides an efficient calibration method of the vision system for in-situ axial displacement measurement of the micro-tensile materials. | Jun-Hyub PARK Dong-Joong KANG Myung-Soo SHIN Sung-Jo LIM Son-Cheol YU Kwang-Soo LEE Jong-Eun HA Sung-Hoon CHOA | 2009 | 中国有色金属学会会刊:英文版2009，19，B09： | 3 |
| 3 | Laser micromachining of CNT/Fe/Al_2O_3 nanocomposites显示文摘CNT/Fe/Al2O3 mixed powders were synthesized from Fe/Al2O3 nanopowders using thermal CVD for the homogeneous dispersion of carbon nanotubes CNTs. CNTs consisted of MWNT, and the diameter was approximately 20-30 nm. After sintering, CNTs were homogenously located throughout Al2O3 grain boundary and were buckled. A femto-second laser installed with special optical systems was used for micromachining of the nanocomposites. The relationship between material ablation rate and energy fluence was theoretically investigated and compared with experimental results from cross-sectional SEM analysis. The nanocomposites which have higher content of CNT show a fairly good machining result due to its higher thermal conductivity and smaller grain size as well as lower light transmittance. | Kwang-Ryul KIM Byoung-Deog CHOI Jun-Sin YI Sung-Hak CHO Yong-Ho CHOA Dong-Soo SHIN Dong-Ho BAE Myung-Chang KANG Young-Keun JEONG | 2009 | 中国有色金属学会会刊:英文版2009，19，B09： | 2 |
| 4 | Radical scavenging capacities of saba-narezushi , Japanese fermented chub mackerel, and its lactic acid bacteria显示文摘 | Tomomi Kanno Takashi Kuda Choa An Hajime Takahashi Bon Kimura | 2012 | LWT - Food Science and Technology2012，，1： | 2 |
| 5 | A high yield rate MEMS gyroscope with a packaged SiOG process显示文摘 | M C Lee S J Kang K D Jung S H Choa Y C Cho | 2005 | J Micromech Microeng2005，15，： | 1 |
| 6 | Arching in Piled Embankments 显示文摘 | LOW B K TANG S K CHOA V | 1993 | Journal of Geotechnical Engineering ASCE1993，120，11： | 1 |
| 7 | Fabrication and microstructure of silicon nitride/boron nitride nanocomposites 显示文摘 | KUSUNOSE T SEKINO T CHOA Y H | 2002 | J Am Ceram Soc2002，85，11： | 1 |
| 8 | Arching in plied embankments 显示文摘 | LOW B K TANG S K CHOA V | 1994 | Jounal of Geotechnical Engineering1994，120，11： | 1 |
| 9 | Broadband RF noise suppression by magnetic nanowire-filled composite films显示文摘 | NAM B CHOA Y H OH S T LEE S K KIM K H | 2009 | IEEE Trans Magn2009，45，6： | 1 |
| 10 | Product of composition and Toeplitz operators显示文摘 | CHOA J S | 2003 | J Math Anal Appl2003，281，： | 1 |
| 11 | Mechanical properties of Si3N4/BN composites by chemical processing 显示文摘 | KUSUNOSE T CHOA Y H NIIHARA K | 2004 | Key Eng Mater2004，，58： | 1 |
| 12 | The effectiveness of cardiopulmonary resuscitation instruction: Animation versus dispatcher through a cellular phone显示文摘 | Choa M Park I Chung H S | 2008 | Resusci- tation2008，77，1： | 1 |
| 13 | Arching in piled embankments显示文摘 | LOW B K TANG S K CHOA V | 1994 | Journal of Geotechnical Engineering1994，120，11： | 1 |
| 14 | Spark ignition natural gasgines-a review 显示文摘 | CHOA H M HE Bangquan | 2007 | Energy Conversion and Management2007，4846，4： | 1 |
| 15 | Study of the end point of photocatalytic degradation of landfill leachate containing refractory matter显示文摘 | Sung Pill Choa Sung Chang Hongb Suk-In Hongc | 2004 | Chemical Engineering Journal2004，98，3： | 1 |
| 16 | Arching in Piled Embankments显示文摘 | Low B K Tang S K Choa V | 1994 | Journal of Geotechnical Engineering1994，120，11： | 1 |
| 17 | The reuse biosludge as an adsorbent from a petro-chemical wastewater treatment plant 显示文摘 | Chiang H L Choa C G Chen S Y | 2003 | Journal of the Air and Management Association2003，53，： | 1 |
| 18 | Fabrication and microstructure of silicon nitridc/boron nitride nanocompositcs 显示文摘 | KUSUNOSE T SEKINO T CHOA Y H | 2002 | J Am Ceram Soc2002，85，11： | 1 |
| 19 | Arching in piled em- bankments显示文摘 | LOW B K TANG S K CHOA V | 1993 | Journal of Geotechnical Engineering AS- CE1993，120，11： | 1 |
| 20 | A Littlewood-Paley Type Identity and a Characterization ofBMOA显示文摘 | J S Choa B R Cboe | 1991 | Complex Variables1991，17，： | 1 |
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