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| 1 | Load Sharing Behavior of Star Gearing Reducer for Geared Turbofan Engine显示文摘Load sharing behavior is very important for power-split gearing system,star gearing reducer as a new type and special transmission system can be used in many industry fields.However,there is few literature regarding the key multiple-split load sharing issue in main gearbox used in new type geared turbofan engine.Further mechanism analysis are made on load sharing behavior among star gears of star gearing reducer for geared turbofan engine.Comprehensive meshing error analysis are conducted on eccentricity error,gear thickness error,base pitch error,assembly error,and bearing error of star gearing reducer respectively.Floating meshing error resulting from meshing clearance variation caused by the simultaneous floating of sun gear and annular gear are taken into account.A refined mathematical model for load sharing coefficient calculation is established in consideration of different meshing stiffness and supporting stiffness for components.The regular curves of load sharing coefficient under the influence of interactions,single action and single variation of various component errors are obtained.The accurate sensitivity of load sharing coefficient toward different errors is mastered.The load sharing coefficient of star gearing reducer is 1.033 and the maximum meshing force in gear tooth is about 3010 N.This paper provides scientific theory evidences for optimal parameter design and proper tolerance distribution in advanced development and manufacturing process,so as to achieve optimal effects in economy and technology. | Shuai MO Yidu ZHANG Qiong WU Feiming WANG Shigeki MATSUMURA Haruo HOUJOH | 2017 | Chinese Journal of Mechanical Engineering2017，30，4： | 2 |
| 2 | Dynamic Template Driven Data Entry System for an EPR System 显示文摘 | Hiroshi Takeda Yasushi Matsumura Takeo Okada Shigeki Kuwata | 1997 | Toward An Electronic Patient Record1997，2，： | 1 |
| 3 | Risk factors for lymph node metastasis in patients with pancreatic neuroendocrine neoplasms显示文摘BACKGROUND Although PNENs generally have a better prognosis than pancreatic cancers,some PNENs display malignant behavior including lymph node(LN)metastasis.Complete tumor resection can be the only potentially curative treatment for patients with resectable PNENs.However,the indications for LN dissection are still controversial.Over the last decade,minimally invasive surgery such as laparoscopic pancreatic surgery(LPS)has been increasingly performed for pancreatic tumors including PNENs.AIM To investigate the risk factors for LN metastasis in PNENs and to select appropriate patients for limited surgery by LPS.METHODS From April 2001 to December 2019,92 patients underwent pancreatic resection for PNENs at Kumamoto University Hospital.Finally,82 patients were enrolled in this study.Using perioperative factors,we examined the predictive factors for LN metastasis in PNENs.RESULTS Among the 82 patients,the percentage of LN metastasis according to the pathological findings was 12%(10/82 cases).The median tumor size was 12 mm(range:5-90 mm).The median tumor size in the LN-positive group(37 mm)was significantly larger than that in the LN-negative group(12 mm)(P=0.0001).Multivariate analyses revealed that larger tumor size(≥20 mm)was an independent risk factor for LN metastasis(odds ratio 16.8,P=0.0062).In patients with small tumors(≤10 mm),LN metastasis was not found.CONCLUSION Larger tumor size(≥20 mm)is an independent risk factor for LN metastasis in PNENs.In smaller PNENs(≤10 mm),we may be able to choose limited surgery without LN dissection. | Yosuke Nakao Hiromitsu Hayashi Yo-ichi Yamashita Ofuchi Takashi Kazuki Matsumura Norio Uemura Fumimasa Kitamura Rumi Itoyama Toshihiko Yusa Katsunobu Taki Tatsunori Miyata Takaaki Higashi Shigeki Nakagawa Hirohisa Okabe Katsunori Imai Hideo Baba | 2022 | World Journal of Clinical Oncology2022，13，6： | 1 |
| 4 | Effect of core diameter of cylindrical polymer insulators on contamination flashover voltage, part Ⅰ显示文摘 | Basanta Kumar Gautam Shigeki Matsumura Kenji Sakanishi | 2006 | IEEJ Transactions on Electrical and Electronic Engineering2006，1，3： | 1 |
| 5 | Torsional stiffness calculation of double-enveloping cy- cloid drive显示文摘 | Liu Jingya Matsumura Shigeki Chen Bingkui | 2012 | Journal of Advanced Mechanical Design2012，6，1： | 1 |
| 6 | Torsional Stiffness ealeulation of double-enveloping eyeloid drive 显示文摘 | LIU Jingya MATSUMURA Shigeki CHEN Bingkui | 2012 | Journal of Advanced Mechanical De- sign2012，6，1： | 1 |
| 7 | Interferon treatment of chronic hepatitis C in patients with hemophilia or von Willebrand’s disease in Japan显示文摘 | Masahide Yoshikawa Hiroshi Fukui Hideyuki Kojima Hitoshi Yoshiji Takemi Sakamoto Hiroo Imazu Toshiya Nakanani Yoshinobu Matsumura Shigeki Kuriyama Junichi Yamao Masato Uemura Akira Takaya Tadasu Tsujii Midori Shima Akira Yoshioka | 1995 | Journal of Gastroenterology1995，，3： | 1 |
| 8 | Architecture for networked electronic patient record systems显示文摘 | Hiroshi Takeda Yasushi Matsumura Shigeki Kuwata etal | 2000 | International Journal of Medical Informatics2000，60，： | 1 |
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