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应用光学 1990年第6期11卷 52-55页

作者： Nagaaki Ohyama Ikuo Yamaguchi Isao Ichimura toshio honda Jumpei Tsujiuchi 杨朋利

提出了能够精确测量非球面反射镜或透境形状和表面误差的动态波带片干涉仪(DZPI)。通过在微调过程中改变照明光的波长,DZPI产生的一系列条纹几乎是连续变化的干涉图形。因此,即使干涉条纹的最大级次大于100,也能识别出。根据这些干涉图... 详细信息

提出了能够精确测量非球面反射镜或透境形状和表面误差的动态波带片干涉仪(DZPI)。通过在微调过程中改变照明光的波长,DZPI产生的一系列条纹几乎是连续变化的干涉图形。因此,即使干涉条纹的最大级次大于100,也能识别出。根据这些干涉图,就可用计算机精确地算出测试条件下光学仪器的形状和表面误差。DZPI的有效性可用一简单实验来证实。

关键词：波带片干涉仪干涉条纹非球面反射镜干涉图光学仪器球面波全息图参考波抛物面镜

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A Blowdown Cryogenic Cavitation Tunnel and CFD Treatment for Flow Visualization around a Foil

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Journal of Thermal Science 2005年第4期14卷 346-351页

作者： Yutaka ITO Kazuya SAWASAKI Naoki TANI Takao NAGASAKI toshio NAGASHIMA Tokyo Institute of Technology G3-334259Nagatsuta-choMidori-kuYokohama226-8502Japan honda Motor Co.Ltd. 2-1-1Minami-AoyamaMinato-kuTokyo107-8556Japan Japan Aerospace Exploration Agency 2-1-1SengenTsukuba305-8505Japan University of Tokyo 7-3-1HongoBunkyo-kuTokyo113-8656Japan

Cavitation is one of the major problems in the development of rocket engines. There have been few experimental studies to visualize cryogenic foil cavitation. Therefore a new cryogenic cavitation tunnel of blowdown type was built. The foil shape is “piano-convex”. This profile was chosen because of simplicity, but also of being similar to the one for a rocket inducer impeller. Working fluids were water at room temperature, hot water and liquid nitrogen. In case of Angle of Attack （AOA）=8°, periodical cavity departure was observed in the experiments of both water at 90℃ and nitrogen at -190℃ under the same velocity 10 m/sec and the same cavitation number 0.7. The frequencies were observed to be 110 and 90 Hz, respectively, and almost coincided with those of vortex shedding from the foil. Temperature depression due to the thermodynamic effect was confirmed in both experiment and simulation especially in the cryogenic cavitation.

关键词： cavitation tunnel cryogen CFD visualization simulation foil.

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Stratifying the risk of lymph node metastasis in undifferentiated-type early gastric cancer

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World Journal of Gastroenterology 2015年第9期21卷 2683-2692页

作者： Yukiko Asakawa Masahiko Ohtaka Shinya Maekawa Mitsuharu Fukasawa Yasuhiro Nakayama Tatsuya Yamaguchi Taisuke Inoue Tomoyoshi Uetake Minoru Sakamoto Tadashi Sato Yoshihiko Kawaguchi Hideki Fujii Kunio Mochizuki Masao Hada toshio Oyama Tomotaka Yasumura Kosaku Omata Atsushi Nishiyama Keiichi Naito Hideo Hata Yoshiaki Haba Kazuyuki Miyata Haruhisa Saitoh Yoichi Yamadera Kazuo Miura Akira Kawaoi Tohru Abe Hajime Tsunoda Yuji honda Masayuki Kurosaki Nobuyuki Enomoto First Department of Internal Medicine Faculty of MedicineUniversity of YamanashiYamanashi 409-3898Japan First Department of Surgery Faculty of MedicineUniversity of YamanashiYamanashi 409-3898Japan Department of Pathology Faculty of MedicineUniversity of YamanashiYamanashi 409-3898Japan Department of Surgery Yamanashi Prefectural Central HospitalYamanashi 400-8506Japan Department of Pathology Yamanashi Prefectural Central HospitalYamanashi 400-8506Japan Department of Surgery Social Insurance Yamanashi HospitalYamanashi 400-0025Japan Department of Pathology Social Insurance Yamanashi HospitalYamanashi 400-0025Japan Department of General Surgery Kofu Kyoritsu HospitalYamanashi 400-0034Japan Department of Pathology Kofu Kyoritsu HospitalYamanashi 400-0034Japan Department of Surgery Kofu Municipal HospitalYamanashi 400-0832Japan Department of Pathology Kofu Municipal HospitalYamanashi 400-0832Japan Department of Surgery Yamanashi Kosei HospitalYamanashi 405-0033Japan Department of Surgery Kanoiwa General HospitalYamanashi 405-0018Japan Department of Pathology Kanoiwa General HospitalYamanashi 405-0018Japan Department of Surgery Social Insurance Kajikazawa HospitalYamanashi 400-0601Japan Department of Surgery Kofu National HospitalYamanashi 400-0006Japan Department of Surgery Fujiyoshida Municipal Medical CenterYamanashi 403-0005Japan Division of Gastroenterology and Hepatology Musashino Red Cross HospitalTokyo 180-0023Japan

AIM:To study how lymph node metastasis(LNM) risk is stratified in undifferentiated-type early gastric cancer(undiff-EGC) dependent on combinations of risk ***:Five hundred and sixty-seven cases with undiff-EGC undergoing gastrectomy with lymphadenectomy were examined *** clinicopathological factors of patient age,location,size,an endoscopic macroscopic tumor form,ulceration,depth,histology,lymphatic involvement(LI) and venous involvement(VI),LNM risk was examined and stratified by conventional statistical analysis and datamining ***:LNM was positive in 44 of 567 cases(7.8%).Univariate analysis revealed > 2 cm,protrusion,submucosal(sm),mixed type,LI and VI as significant prognostic factors and > 2 cm and LI-positive were independent factors by multivariate *** preoperatively evaluable factors excluding LVI,sm and > 2 cm were independent *** to the depth and size,cases were categorized into the low-risk group [m and ≤ 2 cm,0%(LNM incidence)],the moderaterisk group(m and > 2 cm,5.6%; and sm and ≤ 2 cm,6.0%),and the high-risk group(sm and > 2 cm,19.3%).On the other hand,LNM occurred in 1.4% in all LI-negative cases,greatly lower than 28.2% in all LI-positive cases,and LNM incidence was low in LInegative cases even in the moderate- and high-risk ***:LNM-related factors in undiff-EGC were depth and size preoperatively while those were LI and size *** these factors,LI was the most significantly correlated factor.

关键词： Undifferentiated-type early gastric cancer Lymph n

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