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Plasma Science and Technology 2012年第5期14卷 419-423页

作者：王硕 T. SUDA M. WAKASUGI T. TAMAE K. kurita A. NODA T. SHIRAI H. TONGU Y. YANO School of Physics and State Key Laboratory of Nuclear Physics and Technology Peking University RIKEN Nishina Center Laboratory of Nuclear Science Tohoku University Department of Physics Rikkyo University Institute of Chemical Research Kyoto University

A novel method has been established to realize the experiment of electron scattering off short-lived nuclei. The method was based on the well known ＂ion trapping＂ phenomenon in electron storage rings. In the R^D experiments at Kyoto University, stable nucleus, 133^Cs, was employed as the target nucleus. The luminosity of scattering experiment was nearly 1026 cm^-2s^-1 at electron beam current around 75 mA. The angular distribution of elastically scattered electrons from trapped Cs ions was measured and the result was well fitted by theoretical calculation. It was indicated that higher luminosity can be reached with larger electron beam current.

关键词： electron scattering ion trapping luminosity angular distribution

The Effect of Workplace-Based Sports Participation on the Mental Status of Japanese Workers

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Journal of Power and Energy Engineering 2023年第3期11卷 150-156页

作者： Yosuke Shibata Yasunari kurita Toshiyuki Ojima Department of Community Health and Preventive Medicine Hamamatsu University School of Medicine Hamamatsu Japan Department of Shizuoka Physical Therapy Faculty of Health Science Tokoha University Shizuoka Japan

Whether workplace-based sports are part of a company’s employee welfare program in terms of mental status is unknown. This study examined the impact of workplace-based sports participation on the mental status of Japanese workers. It involved a single-arm intervention comprising participation in a company’s volleyball team. Data on mental status were collected using a simplified version of the Brief Job Stress Questionnaire. Overall, 11 individuals participated, 9 (81.8%) of whom were women;the mean participant age was 38.2 years. Because the intervention was conducted during busy periods, the median (25th and 75th percentiles) score for qualitative job overload significantly increased from 3.0 (2.0, 4.0) to 3.0 (3.0, 4.3) (p = 0.03). Nonetheless, the fatigue score significantly decreased from 3.0 (3.0, 4.3) to 3.0 (2.0, 4.0) (p = 0.03). These results indicate that participation in workplace-based sports can prevent the deterioration of mental status during busy periods.

关键词： Mental Health Occupational Stress Team Sports Volleyball Occupation Groups

Case Reports: Treatment-Resistant Schizophrenia with Severe Type 2 Diabetes Mellitus Treated with Clozapine

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Open Journal of Psychiatry 2016年第1期6卷 61-64页

作者： Junji Gon Shinji Sakamoto Manabu takaki Department of Neuropsychiatry Okayama University Graduate School of Medicine Okayama Japan

Objective: Clozapine is regarded as the most effective drug for treatment of schizophrenia but has complex adverse effects associated with hyperglycemia and diabetes mellitus. Method: We report that clozapine was very effective to treat positive, negative, and cognitive symptoms and well tolerated to a treatment-resistant schizophrenia patient with severe type 2 diabetes mellitus (DM) under cautious blood-sugar monitoring. Results: Clozapine itself and discontinuation of other psychotropic and anticholinergic agents after switching may improve cognitive function and adherence to the treatment regimens for schizophrenia and DM. Conclusion: Clozapine can be administered to treatment-resistant schizophrenia patients even with severe DM with caution.

关键词： Clozapine Treatment-Resistant Schizophrenia Type 2 Diabetes Mellitus Brief Assessment of Cognition in Schizophrenia Japanese Version

Fundamental Characteristics of Reduction System for Seismic Response using Friction Force

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Journal of Civil Engineering and Architecture 2011年第11期5卷 1042-1047页

作者： Katsumi kurita Shigeru Aoki Yuuji Nakanishi Tokyo Metropolitan College of Industrial Technology

A new device of reduction for seismic response using friction force was developed. In this paper, fundamental characteristics of reduction system for seismic response using this device were investigated by excitation experiment using artificial seismic waves. The peak acceleration amplitude on this system has decreased to about 50-90% over the input waves. Although a spectral peak around the frequency of 0.5Hz that is the natural period of this system was identified, the value of a spectral peak was decreased using bearings with the high friction force. This device is useful for reduction of seismic response.

关键词： Friction force seismic response natural period damping ratio amplitude.

Dynamic Contact Problem for Slide Hinge

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Open Journal of Applied Sciences 2012年第4期2卷 82-86页

作者： Kazunori Shinohara Ryoji takaki Takeshi Akita Faculty of Engineering Chiba Institute of Technology Chiba Japan Institute of Space and Astronautical Science (ISAS) Japan Aerospace Exploration Agency (JAXA) Sagamihara Japan JAXA's Engineering Digital Innovation Center (JEDI) Japan Aerospace Exploration Agency (JAXA) Sagamihara Japan

Contact analysis can be either static or dynamic. In static contact analysis, the position on the contact surface is constant. In dynamic contact analysis, the position on the contact surface changes at every time step. In static contact analysis, the computing results (stress, strain, etc.) of contact states have been verified through the Hertz contact problem in literature. On the other hand, there has been insufficient research into dynamic contact analysis. The contact algorithm is insufficiently constructed in finite element model (FEM) discretization. The gap between two objects cannot be calculated accurately. A contact method is demanded for artificial parameters. Inappropriate setting of artificial parameters causes artificial numerical oscillations on the contact surface between objects. To develop a high-reliability satellite, we started the development of FEM contact-friction modeling techniques in this study. A dynamic contact method was realized by using the appropriate parameters required in the contact analysis. We verified the reproducibility of the physical behavior of the contact friction via numerical simulation techniques by using a computational model of the hinge joints.

关键词： FEM Contact Friction Stress Joints Structural Analysis Advance/FrontSTR Dynamic Contact Analysis Static Contact Analysis

Granulocyte colony-stimulating factor-producing hepatocellular carcinoma with abrupt changes

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World Journal of Clinical Oncology 2016年第5期7卷 380-386页

作者： Hiroaki Nagata Shuhei Komatsu Wataru takaki Tokunari Okayama Yasunori Sawabe Michiaki Ishii Mitsuo Kishimoto Eigo Otsuji Hiroshi Konosu Division of Digestive Surgery Department of Surgery Kyoto Prefectural University of Medicine Department of Surgery Ayabe City Hospital Department of Gastroenterology Ayabe City Hospital Department of Surgical Pathology Kyoto Prefectural University of Medicine

Granulocyte colony-stimulating factor(G-CSF)-producing tumor is one of the rare types of cancer clinically characterized by an elevated fever and white blood cell(WBC) increment. Although G-CSF producing tumors have been reported in several types of cancer including those of the lungs, cervix and bladder, G-CSF producing hepatocellular carcinoma is extremely rare. Here, we report the case of a rapidly growing and poorly differentiated hepatocellular carcinoma producing G-CSF. The patient showed symptoms of continuous high fever, stomach pain and cough, and high serum WBC counts, C-reactive protein(CRP) and G-CSF levels were found in laboratory tests. After a radical hepatectomy, the patient completely recovered from the above symptoms and inflammatory state. The serum levels of G-CSF were reduced to normal levels after radical surgery. An immunohistochemical analysis revealed the overexpression of G-CSF in the cytoplasm of certain hepatocellular carcinoma(HCC) cell. The patient's serum WBC, CRP and G-CSF levels remained within normal levels in the six months after surgery without recurrence. This is the 9^(th) case report of G-CSF producing hepatocellular carcinoma in English literature. We review the clinical characteristics of the G-CSF producing HCC and discuss a possible treatment strategy.

关键词： Granulocyte colony stimulating factor Granulocyte colony-stimulating factor producing tumor Hepatocellular carcinoma Immunohistochemistry Sarcomatous changes

Limit of Dislocation Density and Ultra-Grain-Refining on Severe Deformation in Iron

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Limit of Dislocation Density and Ultra-Grain-Refining on Sev...

Counter-Rotating Type Tidal Stream Power Unit Moored by Only One Cable

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作者： Setsuo takaki Toshihiro Tsuchiyama Dept.of Materials Science and Engineering Kyushu University6-10-1 Hakozaki Higashi-ku Fukuoka 812-8581 Japan Dept.of Materials Science and Engineering Kyushu University6-10-1 Hakozaki Higashi-ku Fukuoka 812-8581 Japan

＜正＞It is well-known that severe deformation to metals causes a direct grain refinement of the matrix without special heat-treatments due to the mechanism of dynamic continuous recrystallization （DCR）. However, the microstructural revolution during severe deformation is seemed to be different depending on the deformation mode, namely the direction of deformation. In general, multi-directional deformation is thought to be effective for the grain refinement caused through DCR. For instance, ultra-grain-refinement to 10nm has already achieved by mechanical milling treatment in a steel powder and hardness of the mechanically milled steel powder is increased to around HV12GPa by such a marked grain refinement. On the other hand, hardness of iron never exceeds HV4GPa by the mode of uni-directional deformation such a conventional cold rolling. In this paper, a limit of dislocation density is discussed for iron which is severely strained by the mode of uni-directional deformation, and also the importance of multi-directional deformation on DCR will be mentioned in association with a significant work hardening behavior in mechanicallv milled iron powder.

关键词： grain refinement multi-directional deformation dislocation density grain size dynamic continuous recrystallization

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Journal of Energy and Power Engineering 2014年第12期8卷 2089-2095页

作者： Yuta Usui Toshiaki Kanemoto Kohei takaki Koju Hiraki Graduate School of Engineering Kyushu Institute of Technology Kitakyushu 804-8550 Japan Faculty of Engineering Kyushu Institute of Technology Kitakyushu 804-8550 Japan

The authors have proposed that a counter-rotating type tidal stream power unit mounted rigidly on a pile, and outputs of the power unit and forces acting on the pile were investigated experimentally at a previous paper, A single propeller makes the pile undertake a reaction force orthogonal to the stream direction. On the contrary, proposed counter-rotating propellers do not require undertaking the reaction force of the pile, because the rotational torque is counter-balanced in the unit. This advantage means that the unit can be moored by only one cable. Continuously, this paper proposes such a power unit with tandem propellers, and experimentally investigates a behavior of the unit floating in a water channel. The vibrations of the power unit are induced from not only the individual but also the interacting rotations of the front and the rear propellers.

关键词： Tidal turbine tidal stream tandem propellers counter rotation generator armature mooring.

Counter-Rotating Type Tidal Stream Power Unit Mounted on a Mono-pile

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Journal of Energy and Power Engineering 2014年第10期8卷 1748-1755页

The authors have invented a unique counter-rotating type tidal stream power unit, which is composed of tandem propellers and a double rotational armature type generator without a stator. The front and the rear propellers drive, as for an upstream type, the inner and the outer rotational armatures in the counter-rotating directions respectively, which keep the rotational torques counter-balanced between both propellers and armatures. This paper investigates experimentally the output and forces acting on a pile in a water channel, to get design materials of the mono-pile type tidal stream power unit. The output is maximal at the moderate rotational speed, as the same as a wind turbine. The force acting on the pile is affected by the drag, the Karman vortex and the dynamic balances of the tandem propellers, and has dominant frequencies due to not only the individual but also the interacting rotation of the front and the rear propellers.

关键词： Tidal turbine tidal stream tandem propellers counter rotation generator armature pile.