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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.
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.
Kenji Shimomuraa,Nobuhiro Suzuki,Shunji Hattori 한국응용곤충학회 2018 Journal of Asia-Pacific Entomology Vol.21 No.2
The repellent activities of one hot thermal-sense compound, vanillyl butyl ether (VBE), and two cool thermalsense compounds, menthoxypropanediol (MPD) and (−)-isopulegol (IPG), against two stored product insects, Tribolium confusum and Liposcelis bostrychophila, were investigated. Such thermal-sense compounds affect mammals through transient receptor potential (TRP) channels, and both types of agonists (VBE and menthol) exhibited mutually inhibitory effects on mammalian TRPV1 and TRPM8 channels. Each compound exhibited repellent activity against both T. confusum and L. bostrychophila in a dose-dependent manner. Furthermore, synergistic effects were observed between VBE and MPD or IPG. The composition of TRP channels is different between mammals and insects. These results suggest that the use of thermal-sense compounds might serve as an alternative to essential oils in stored products protection.
Department of Neurosurgery, Dhaka Medical College Hospital, Dhaka, Bangladesh
Kenji Endo,Hidekazu Suzuki,Hirosuke Nishimura,Hidetoshi Tanaka,Takaaki Shishido,Kengo Yamamoto 대한척추외과학회 2014 Asian Spine Journal Vol.8 No.6
Study Design: Normal cervical sagittal length patterns were measured by magnetic resonance imaging (MRI). Purpose: The aim of this study was to evaluate the relationship of sagittal length patterns between the cervical cord and the cervical canal in flexion-extension kinematics. Overview of Literature: Cervical dynamic factors sometimes cause a cervical spondylotic myelopathy in elderly subjects and an overstretching myelopathy in juvenile subjects. Previous studies showed the length changing of the cervical cord in flexion and extension. However, there is no detailed literature about the relationship between cervical vertebral motion and cord distortion yet. Methods: Sixty-two normal subjects (28 male and 34 female, 42.1±8.5 years old) without neck motion disturbances and abnormalities on cervical X-ray and MRI were enrolled in this study. Results: The cervical cord length was significantly longer in flexion and significantly shorter in extension in all cervical cord sagittal lines. The cervical canal length pattern was also the same as the cervical cord. The elongation of the cervical cord and canal was the largest at the site of the posterior cervical canal and the shortest at the anterior canal site. The positions of the cerebellar tonsils were verified at each neck position. Conclusions: The posterior elements of the cervical canal were most affected by neck motion. Movement directions of the upper cervical cord were verified among the various neck positions.
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.