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hajime Arimoto,F. Sano,G. Motojima,H. Yamazaki,H. Nakamura,H. Yabutani,H. Kitagawa,H. Okada,J. Arakawa,K. Kondo,K. Ohashi,K. Nagasaki,M. Yamada,M. Uno,M. Kikutake,M. Kaneko,N. Watanabe,N. Nishino,N. S 한국물리학회 2006 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.49 No.III
The measurement of D, CII and CIII line spectral profiles and the CD band spectrum from the vicinity of a test limiter surface is performed in Heliotron J test limiter experiments. With deep insertion of the limiter, there is a localized intense region of the D, CII and CIII line intensity in the limiter surface, and the CD band spectrum is observed at this region. It is considered that the deuterium ion flux and heat load concentrate at this region and enhance carbon impurity generation.r_che
Characteristic measurements of a low energy atmospheric pressure plasma for blood coagulation
Hiromasa YAMADA,Tomonori HOTTA,Hajime SAKAKITA,Yutaka FUJIWARA,Jaeho KIM,Hirotomo ITAGAKI,Masanori FUJIWARA,Susumu KATO,Satoru KIYAMA,Nobuyuki SHIMIZU,Hayao NAKANISHI,Yuzuru IKEHARA 한국진공학회 2016 한국진공학회 학술발표회초록집 Vol.2016 No.8
Effect of Compression Overload on Fatigue Strength Improved by ICR Treatment
Toshiyuki Ishikawa,Masaru Shimizu,Hajime Tomo,Hirotaka Kawano,Kentaro Yamada 한국강구조학회 2013 International Journal of Steel Structures Vol.13 No.1
ICR (Impact Crack-closure Retrofit) treatment was developed for extending fatigue life of cracked steel structures by closing the fatigue crack opening. By applying the ICR treatment to as-welded condition, compressive stress remains at weld toe. Therefore, ICR treatment can be used for the improvement of fatigue strength of welded joint at the same level of the other fatigue strength improved techniques. If a compression overload is subjected after ICR treatment, however, the residual compressive stress at weld toe will shift the tensile stress region. Accordingly, improved fatigue strength of welded joints by ICR treatment will be reduced after the compression overloaded. In order to investigate the effect of the compression overload on fatigue strength improved by ICR treatment, fatigue tests of out-of-plane gusset specimens were carried out. As the results,fatigue strength improved by ICR treatment was hardly reduced under the compression overload condition of nominal stress of −190 MPa.
APPLICATION OF GIANT MAGNETOSTRICTIVE MATERIAL TO DISC BRAKE ACTUATOR
Yutaka OGAWA,Yukio MURATA,kazuo KAWASE,Hiroyuki WAKIWAKA,Tsutomu MIZUNO,Hajime YAMADA 전력전자학회 1998 ICPE(ISPE)논문집 Vol.- No.-
For the next generation railway brake system, a disc brake which can be operated directly and electrically is strongly expected. This paper deals with newly developed disc brake actuator using giant magnetostnctive materials (GMM) which can be integrated with disc brake Regarding the brake system performance, a better delay time was also attained which will contribute to shorten a stopping distance.<br/>
( Yuzuru Toki ),( Ryo Yamauchi ),( Eizo Kayashima ),( Kyoichi Adachi ),( Kiyohiko Kishi ),( Hiroshi Suetsugu ),( Tsuneya Wada ),( Hiroyoshi Endo ),( Hajime Yamada ),( Satoshi Osaga ),( Takeshi Kamiya 대한소화기기능성질환·운동학회 2022 Journal of Neurogastroenterology and Motility (JNM Vol.28 No.1
Background/Aims Although risk factors of reflux esophagitis (RE) have been investigated in numerous cross-sectional studies, little is known about predictive factors associated with future onset of RE. We investigated time courses of clinical parameters before RE onset by a longitudinal case-control study using health checkup records. Methods We used health checkup records between April 2004 and March 2014 at 9 institutions in Japan. A multivariate logistic regression analysis was performed to evaluate associations of baseline clinical parameters with RE. The time courses of the clinical parameters of RE subjects were compared with those of non-RE subjects by the mixed-effects models for repeated measures analysis or longitudinal multivariate logistic analysis. Results Initial data were obtained from 230 056 individuals, and 2066 RE subjects and 4132 non-RE subjects were finally included in the analysis. Body mass index, alanine aminotransferase, smoking, acid reflux symptoms, hiatal hernia, and absence of atrophic gastritis at baseline were independently associated with RE. The time courses of body mass index, fasting blood sugar, triglyceride, aspartate aminotransferase, alanine aminotransferase, γ-glutamyl transpeptidase, percentages of acid reflux symptoms, feeling of fullness, and hiatal hernia in the RE group were significantly worse than in the non-RE group. Conclusions The RE group displayed a greater worsening of the clinical parameters associated with lifestyle diseases, including obesity, diabetes, hyperlipidemia, and fatty liver for 5 years before RE onset compared with the non-RE group. These results suggest that RE is a lifestyle disease and thus lifestyle guidance to at-risk person may help to prevent RE onset. (J Neurogastroenterol Motil 2022;28:86-94)