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Recent Trends and Issues of Device Integration Standardization
Kenji Suzuki,Satoshi Iwatsu,Tetsuo Ideguchi 제어로봇시스템학회 2009 제어로봇시스템학회 국제학술대회 논문집 Vol.2009 No.8
Although there are many fieldbus technologies, the device integration of different fieldbuses has beena problem. In the device integration standardization, the generic application service interfaces are going to be standardizedfor integrating multi-device technologies. This paper gives an overview of the generic application service interfacefor the multi-device technologies integration. We show the device capability profiling method for the generic applicationservice interface. New standard of the generic application service interface for the power drive system is explained.Then, we show the recent trends and issues of the device integration standardization.
New Magnetic Phases of Fe-N and Mn - Al Alloys Produced by Mechanochemical Milling
김규진(Kyu-Jin Kim),노태환(Tae-Hwan Noh),Kenji Suzuki(Kenji Suzuki) 한국자기학회 1994 韓國磁氣學會誌 Vol.4 No.4
The structural change and magnetic properties of mechanically milled Fe-N and Mn-Al alloy powders have been investigated by XRD, TEM, VSM, Mossbauer spectroscopy and inelastic neutron scattering measurements.<br/> During milling of γ'-Fe₄N powders, an fcc γ'-Fe₄N phase is transformed to a bet α'-Fe(N) phase by stress-induced martensitic transformation, being accompanied by an initial increase in saturation magnetization. During annealing the bet α'-Fe(N) nanocrystalline phase which is obtained by mechanical grinding for a long time, an α'-Fe_(16)N₂ phase partially appears as an intermediate phase at 673~773 K, causing an increase in saturation magnetization.<br/> During milling of Mn-45, 70 and 85 at. % Al mixed powders, Al atoms are partially solubilized into an α-Mn phase. The Al supersaturated α-Mn-type phases change from paramagnetic to ferromagnetic: the saturation magnetization is 11 emu /g for the as-milled Mn-70 at. % Al powders. Moreover, by removing almost all Al atoms from the as-milled Mn-85 at. % Al powders using chemical leaching, the saturation magnetization increases up to 36 emu /g.<br/> The above bet α'-Fe(N) and ferromagnetic α-Mn type alloys are the magnetic materials found for the first time, by using the present mechanochemical process.
Prediction of Cascade Performance of Circular-Arc Blades with CFD
Suzuki, Masami,Setoguchi, Toshiaki,Kaneko, Kenji Korean Society for Fluid machinery 2011 International journal of fluid machinery and syste Vol.4 No.4
Thin circular-arc blade is often used as a guide vane, a deflecting vane, or a rotating blade of low pressure axial-flow turbomachine because of its easy manufacture. Ordinary design of the blade elements of these machines is done by use of the carpet diagrams for a cascade of circular-arc blades. However, the application of the carpet diagrams is limited to relatively low cambered blade operating under optimum inlet flow conditions. In order to extend the applicable range, additional design data is necessary. Computational fluid dynamics (CFD) is a promising method to get these data. In this paper, two-dimensonal cascade performances of circular-arc blade are widely analyzed with CFD. The results have been compared with the results of experiment and potential theory, and useful information has been obtained. Turning angle and total pressure loss coefficients are satisfactorily predicted for lowly cambered blade. For high camber angle of $67^{\circ}$, the CFD results agree with experiment for the angle of attack less than that for shockless inlet condition.
Characteristics of Sagittal Spino-Pelvic Alignment in Japanese Young Adults
Kenji Endo,Hidekazu Suzuki,Hirosuke Nishimura,Hidetoshi Tanaka,Takaaki Shishido,Kengo Yamamoto 대한척추외과학회 2014 Asian Spine Journal Vol.8 No.5
Study Design: Radiological analysis of normal patterns of sagittal alignment of the spine. Purpose: This study aimed to clarify the characteristics of normal sagittal spino-pelvic alignment in Asian people. Overview of Literature: It is known that there are differences in these parameters based on age, gender, and race. In order to properly plan for surgical correction of the spine for Asian patients, it is necessary to understand the normal spino-pelvic alignment parameters for this population. Methods: This study analyzed 86 Japanese healthy young adult volunteers (48 men and 38 women; age 35.9±11.1 (mean±standard deviation [SD]). The following parameters were measured on lateral standing radiographs of the entire spine: sagittal vertical axis (SVA), horizontal distance between the C7 plumb line and the posterior superior corner of the superior margin of S1, thoracic kyphotic angle (TK), lumbar lordotic angle (LLA), sacral slope (SS), pelvic tilt (PT), and pelvic incidence (PI). Results: The values (mean±SD) of SVA, TK, LLA, SS, PT, and PI were 8.45±25.7 mm, 27.5±9.6°, 43.4±14.6°, 34.6±7.8°, 13.2±8.2°, and 46.7±8.9°, respectively. The Japanese young adults evaluated in this study tended to have a smaller PI, LLA, TK, and SVA than most Caucasian people. Regarding gender differences, SVA was significantly longer and TK was significantly smaller in men; however, there was no statistically significant difference in LLA, SS, PA, and PI. Conclusions: Japanese young adults apparently have smaller PI and LLA values than Caucasian people. When making decisions for optimal sagittal spinal alignment, racial differences should be considered.
Suzuki Masao,Namura Kenji,Egawa Masato,Yano Tadashi 대한침구의학회 2007 대한침구의학회지 Vol.32 No.3
목적 : 부신피질 스테로이드약을 포함한 약물치료에도 조절되지 않았던 기관지천식 환자 6 증례에 대하여 침구치료를 행하여, 연구방법의 하나인 조건반전법(N-of-1)을 이용하여 침치료의 효과를 검토하였다. 방법 : 연구디자인 : 조건반전법으로 침치료 기간(A기간)과 침치료 휴지기간(B기간)을 서로 반복하였다. A기간은 10주간으로 하고 1주간에 1회의 침치료를 행하였다. 실시장소 : 메이지 침구대학부속병원 내과와 부속침구센터 대상 : 기관지천식의 표준적인 약물치료를 행하여도 천식발작이 충분히 개선되지 않았던 중등증에서 중증의 천식환자 6 증례를 대상으로 하였다. 평가 : 기관치천식에 대한 침치료의 효과를 아래의 항목을 이용하여 평가하였다. ① 발작상태를 천식일지에 의해 평가 ② 호흡곤란감을 VAS(Visual Analogue Scale)에 의해 평가 ③ 호흡기능검사 ④ 말초혈호산구수 ⑤ 스테로이드약의 투여량 ⑥ 중증도 효과 : A기간에 동시적으로 모든 예에서 천식발작과 호흡곤란감의 개선이 인정되었다. 한편 B기간에서는 6례중 중 5례에서 천식발작의 재연이 확인되었다. 또한 천식발작의 개선에 수반하여 모든 예에서 중증도의 개선도 인정되었으며, 6례 중 4례에서 스테로이드약의 감량이 가능하게 되었다. 결론 : 약물치료로 조절되지 않았던 기관지천식 환자에 대하여 침치료를 행한 결과, 환자의 천식발작, 자각증상, 호흡기능의 개선에 유효하였다고 생각된다.