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中国有色金属学会会刊：英文版 2009年第B9期19卷 301-306页

作者： Tae-Soo KWAK Yong-Chul LEE Gyung-Nyun KIM Dae-Bong CHOI Mikio YAMANOI hitoshi ohmori Department of Mechanical Engineering Jinju National University

This study is focused on the application of an effective fabrication method combining electrolytic in-process dressing(ELID) grinding and magnetic assisted polishing(MAP) to nano-precision mirror surface grinding on the optics glass-ceramic named Zerodure that is commonly used in precision optics components. The results show the variation of surface roughness after MAP processes utilizing Fe+CeO2, Fe+CeO2+diamond paste and Fe+diamond paste are applied to ELID ground surfaces. The MAP surface roughnesses for ELID ground surface roughnesses(Ra) of 52.1, 39.8 and 51.1 nm using #1200 grinding wheel are improved to 6.1, 4.6 and 1.9 nm, respectively. The surface roughness of MAP process using Fe+CeO2+diamond paste is superior to that using other processes. Moreover, it takes less than 10 min to conduct the MAP processes. The combined method suggested effectively reduces the working time to get the required surface qualities.

关键词：在线电解修整光学玻璃纳米相抛光材料电解过程表面粗糙度地面粗糙度磨削

A high quality surface finish grinding process to produce total reflection mirror for x-ray fluorescence analysis

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International Journal of Extreme Manufacturing 2020年第1期2卷 156-162页

作者： hitoshi ohmori Shinjiro Umezu Yunji Kim Yoshihiro Uehara Hiroshi Kasuga Teruko Kato Nobuhide Itoh Syuhei Kurokawa Takayuki Kusumi Yugo Sugawara Shinsuke Kunimura Materials Fabrication Laboratory RIKENSaitama 351-0198Japan Department of Modern Mechanical Engineering Waseda UniversityTokyo 169-8555Japan Department of Mechanical Systems Engineering Ibaraki UniversityIbaraki 316-8511Japan Department of Mechanical Engineering Kyushu UniversityFukuoka 819-0395Japan New technology developments Akita Industrial Technology CentreAkita 010-1623Japan Department of Industrial Chemistry Tokyo University of ScienceTokyo 162-8601Japan

Total reflection x-ray fluorescence analysis is applied to trace element detection in liquid for effective environmental *** analytical approach requires x-ray total reflection *** order to achieve high sensitivity element detection,the mirrors require high surface quality for high x-ray *** finishing for x-ray mirrors is typically conducted through a series of abrasive processes,such as grinding and polishing,and is thus time *** purpose of this study is to streamline and enhance the surface finishing process based on unique high quality grinding techniques for the production of x-ray total reflection mirrors.

关键词： grinding finishing x-ray mirror

Proton pump inhibitor induced collagen expression in colonocytes is associated with collagenous colitis

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World Journal of Gastroenterology 2017年第9期23卷 1586-1593页

作者： Shiori Mori Yui Kadochi Yi Luo Rina Fujiwara-Tani Yukiko Nishiguchi Shingo Kishi Kiyomu Fujii hitoshi ohmori Hiroki Kuniyasu Department of Molecular Pathology Nara Medical UniversityShijo-choKashihara 634-8521Japan

To elucidate the role of proton pump inhibitors (PPIs) in collagenous disease, direct effect of PPI on colonocytes was *** colitis is a common cause of non-bloody, watery diarrhea. Recently, there has been increasing focus on the use of proton PPIs as a risk factor for developing collagenous colitis. Mouse CT26 colonic cells were treated with PPI and/or PPI-induced alkaline media. Expression of fibrosis-associated genes was examined by RT-PCR. In human materials, collagen expression was examined by ***26 cells expressed a Na+-H+ exchanger gene (solute carrier family 9, member A2). Treatment with PPI and/or PPI-induced alkaline media caused growth inhibition and oxidative stress in CT26 cells. The treatment increased expression of fibrosis inducing factors, transforming growth factor β and fibroblast growth factor 2. The treatment also decreased expression of a negative regulator of collagen production, replication factor C1, resulting in increased expression of collagen types III and IV in association with lipid peroxide. In biopsy specimens from patients with collagenous colitis, type III and IV collagen were increased. Increase of type III collagen was more pronounced in PPI-associated collagenous colitis than in non-PPI-associated *** these findings, the reaction of colonocytes to PPI might participate in pathogenesis of collagenous colitis.

关键词： Proton pump inhibitor Collagenous colitis pH Fibrosis Oxidative stress

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新型反应烧结碳化硅陶瓷的超精密磨削

中国机械工程 2006年第6期17卷 595-597页

作者：戴玉堂姜德生大森整武汉理工大学光纤传感技术与信息处理教育部重点实验室武汉430070 理化学研究所素形材工学研究室

介绍了一种可用作光学反射镜材料的新型反应烧结碳化硅。采用超精密磨床结合在线电解修整的磨削方法对新型反应烧结碳化硅进行磨削,研究了不同磨粒尺寸、不同结合剂以及不同形状砂轮对磨削面性状的影响,分析了磨削面微段差的形成机理。... 详细信息

介绍了一种可用作光学反射镜材料的新型反应烧结碳化硅。采用超精密磨床结合在线电解修整的磨削方法对新型反应烧结碳化硅进行磨削,研究了不同磨粒尺寸、不同结合剂以及不同形状砂轮对磨削面性状的影响,分析了磨削面微段差的形成机理。获得了表面粗糙度Ra=0.57nm的超平滑镜面。

关键词：反应烧结碳化硅超精密磨削在线电解修整表面特性

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一种光学材料高效超精密加工方法

中国机械工程 2008年第21期19卷 2540-2544页

作者：尹韶辉大森整林伟民上原嘉宏陈逢军朱科军湖南大学国家高效磨削工程技术研究中心湖南长沙410082 日本理化学研究所日本东京日本秋田县立大学日本秋田

提出了结合磁流变光整加工(MRF)与在线电解修整(ELID)磨削对各种光学材料进行超精密加工的方法,即采用ELID磨削进行预抛光以获得高质量表面,然后采用MRF进行精密抛光以进一步减小表面粗糙度和形状误差。利用该组合工艺对BK7玻璃、硅晶... 详细信息

提出了结合磁流变光整加工(MRF)与在线电解修整(ELID)磨削对各种光学材料进行超精密加工的方法,即采用ELID磨削进行预抛光以获得高质量表面,然后采用MRF进行精密抛光以进一步减小表面粗糙度和形状误差。利用该组合工艺对BK7玻璃、硅晶玻璃、碳化硅等光学材料进行了超精密加工实验,可以在短时间内使光学材料工件表面得到亚纳米级的表面粗糙度和峰谷值为λ/20(λ为单位波长,λ=632.8nm)的形状精度。

关键词： ELID磨削磁流变光整加工(MRF) 超精密组合加工形状精度表面粗糙度光学材料

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碳化硅轻量反射镜的超精密加工

制造技术与机床 2005年第11期 20-22页

作者：戴玉堂姜德生林伟民大森整武汉理工大学光纤传感技术与信息处理教育部重点实验室湖北武汉430070 理化学研究所素形材工学研究室

运用在线电解磨削技术(ELID)加工大型碳化硅球面镜(口径360mm),设计了一套专用的静压组合夹具用以抑制加工过程中因磨削力引起的工件变形。结合在线面形测量和基于误差补偿的补正加工方法,可以获得面形精度为P-V值0.8μm、表面粗糙度... 详细信息

运用在线电解磨削技术(ELID)加工大型碳化硅球面镜(口径360mm),设计了一套专用的静压组合夹具用以抑制加工过程中因磨削力引起的工件变形。结合在线面形测量和基于误差补偿的补正加工方法,可以获得面形精度为P-V值0.8μm、表面粗糙度为Ra7.8nm的高质量碳化硅球面镜。

关键词：烧结碳化硅宇宙望远镜 ELID磨削超精密加工

结合ELID磨削与磁流变光整加工的单晶硅反射镜超精密制造技术

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纳米技术与精密工程 2007年第3期5卷 220-223页

作者：尹韶辉陈逢军张导成大森整林伟民上原嘉宏湖南大学国家高效磨削工程技术研究中心长沙410082 日本理化学研究所东京3510198

分析了在线电解修整(ELID)磨削和磁流变光整加工(MRF)的加工原理与特点,充分结合这2种技术的优点对单晶硅反射镜进行纳米级精度的组合加工.首先进行ELID高效率磨削,在线检测工件表面误差后进行补偿磨削,使反射镜面加工成形,并获得较好... 详细信息

分析了在线电解修整(ELID)磨削和磁流变光整加工(MRF)的加工原理与特点,充分结合这2种技术的优点对单晶硅反射镜进行纳米级精度的组合加工.首先进行ELID高效率磨削,在线检测工件表面误差后进行补偿磨削,使反射镜面加工成形,并获得较好的形状精度和表面质量.然后,利用磁流变技术进行确定性的光整加工,以减少反射镜的亚表面损伤,使加工表面的形状精度与表面粗糙度得到很大提高与改善.利用该组合工艺,对硅反射镜进行了系列的加工实验,高效率地得到了低于1 nm RMS的表面粗糙度和69 nmP-V形状精度的工件表面.

关键词：单晶硅反射镜在线电解修整磁流变光整加工形状精度表面粗糙度

应用在线电解修整磨削和磁流变光整加工组合工艺进行碳化硅的纳米加工

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中国机械工程 2007年第21期18卷 2547-2550,2560页

作者：尹韶辉陈逢军盛晓敏大森整林伟民上原嘉宏湖南大学国家高效磨削工程技术研究中心长沙410082 日本理化学研究所

利用在线电解修整镜面磨削和磁流变光整加工技术对化学气相沉积碳化硅反射镜进行纳米级精度的加工。首先进行在线电解修整磨削,使反射镜面高效率加工成形,并获得较好的形状精度和表面质量;然后利用磁流变技术进行光整加工,以减少反射镜... 详细信息

利用在线电解修整镜面磨削和磁流变光整加工技术对化学气相沉积碳化硅反射镜进行纳米级精度的加工。首先进行在线电解修整磨削,使反射镜面高效率加工成形,并获得较好的形状精度和表面质量;然后利用磁流变技术进行光整加工,以减少反射镜的亚表面损伤,提高表面质量,并通过修正加工,显著提高了工件表面的形状精度。对化学气相沉积碳化硅进行了一系列的加工试验,高效率地得到Rq=2.4nm(均方根偏差)的表面粗糙度和21.2nm的形状精度,并且对在线电解修整镜面磨削与磁流变光整加工所生成的表面特性进行了分析比较。

关键词：化学气相沉积碳化硅在线电解修整镜面磨削磁流变光整加工超精密加工形状精度表面粗糙度

Acetylene Vacuum Carburizing

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材料热处理学报 2004年第5期25卷 370-374页

作者： hitoshi Iwata JH CORPORATION Aichi Japan

Almost 30 years has passed since the publication of materials on vacuum carburizing technology, and is attracting a great deal of attention as a technology capable of being used as a substitute for gas carburizing technology. However, the technology was not popular except in specific fields. The main reason for this is due to a variety of harmful influences accompanying the sooting problems caused by CH4 or C3H8. We have succeeded in that the occurrence of sooting was suppressed by utilizing acetylene, at extremely low pressure for carburizing (below 1 kPa). This process is now showing the excellent quality and prospects for this technology in terms of quality, economy and safety. At present almost 70 practical mass production furnaces are used in production lines, in Japan and abroad. At this time, we will report summary of the present acetylene vacuum carburizing process and the actual results obtained by these acetylene vacuum carburizing furnaces for mass production.

关键词：乙炔真空渗碳大量生产低压

The Fefferman-Stein-Type Inequality for the Kakeya Maximal Operator Ⅱ

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Acta Mathematica Sinica,English Series 2002年第3期18卷 447-454页

作者： hitoshi TANAKA Department of Mathematics Gakushuin University 1-5-1 Mejiro Toshima-ku Tokyo 171-8588 Japan

Let K, 0 ±1, be the Kakeya maximal operator defined as the supremum of averages over tubes of the eccentricity . The (so-called) Fefferman-Stein-type inequality: $|| {K_\delta f} ||_{L^d({{\rm R}^d,w})} \le C_d ({1 \over \delta})^{(d - 2)/2d}(\log ({1 \over \delta } ))^{\alpha_d} || f ||_{L^d ({\rm R}^d,K_{\delta}w})}$is shown, where Cd and d are constants depending only on the dimension d and w is a weight. The result contains the exponent (d-2)/2d which is smaller than the exponent (d-2)(d-1)/d(2d-3) obtained in [7].

关键词： Maximal functions Weighted inequalties