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학교 신축 공사장 화재원인과 대책
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대규모 건물군의 사설지역방재센터
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Acceleration of microalgal biofilm formation on PET by surface engineering
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지방자치단체의 청년 정책개발 사례연구: 광주광역시 동구를 중심으로
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낙동강(洛東江) 중류수계(中流水系)의 수질조사(水質調査) 연구(硏究)$(1978{\sim}80$년(年))
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- 저자 : ( Hiroyuki Suzuki ) (검색결과 78 건)
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Hiroyuki Suzuki 한국언어연구학회 2014 언어학연구 Vol.19 No.3
Hiroyuki Suzuki 2014. Brief introduction to the endangerment of Tibetic languages: Special reference to the language situation in Eastern Tibetan cultural area. Journal of Linguistic Studies 19(3), 281-301. This article provides a short introduction to the Tibetic languages which include varieties facing language endangerment because of various reasons. First, an overview of linguistic features of the Tibetic languages is given. Second, a detailed classification of language groups spoken in the eastern Tibetosphere and their linguistic situation are described. Third, current issues of the endangerment are discussed by presenting two specific cases of Melung Tibetan and Lhagang Tibetan, and finally some perspectives for the endangerment of Tibetic languages are presented. (National Museum of Ethnology, Osaka, Japan)
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( Hiroyuki Suzuki ),( Takayoshi Saito ),( Tetsuo Katsuura ),( Yoshihiro Shimomura ) 한국감성과학회 2014 춘계학술대회 Vol.2014 No.-
A diagnostic ultrasound system is an apparatus to aid in examination and diagnosis by displaying cross-sectional images of body tissues, their movements, and blood flow produced based on the intensities and phases of reflected echoes. Most the operators operate the probe by the right hand and the operation panel by the left hand during ultrasonic diagnosis in Japan. Ultrasound examinations tend to put sonographers in unnatural postures, which may lead to musculoskeletal disorders. In this study, we focused on the height and the horizontal positioning of the operation panel of the diagnostic ultrasound system to quantitatively assess the influence of panel height (work plane height) and work plane position on musculoskeletal stress during scanning in a sitting position. Eight subjects (6 males and 2 females) were asked to perform a simulated scanning task that involved touching 9 points on the operation panel at 4 different panel heights. Five subjects (2 males and 3 females) were asked to perform a simulated scanning task that involved touching fie points on the control panel, with the work plane set at different positions in space. Electromyograms of each part of the body and wrist joint angles indicated that the optimum height of the operation panel during scanning in a sitting position was elbow height, the least stressful position of the left hand was about 350 mm from the center of the trunk in the longitudinal (front-back) direction and 100 mm left of the center of the trunk in the lateral (right-left) direction.
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Compaction of Ultra-fine WC Powder by High-Speed Centrifugal Compaction Process
Suzuki Hiroyuki Y.,Kadono Yuichi,Kuroki Hidenori 한국분말야금학회 2006 한국분말야금학회 학술대회논문집 Vol.2006 No.1
High-Speed Centrifugal Compaction Process is one of slip-using compacting method originally developed for processing of oxide ceramics. In this study, we apply the HCP to ultra-fine (0.1 micron) WC powder. Organic liquid of heptane was chosen as dispersing media to avoid possible oxidation of WC. The mixing apparatus was a key to obtain dense compacts. Only the slips mixed by high energy planetary ball mill were packed up to 55% by the HCP, and sintered to almost full density at 1673 K without any sintering aids. This sintered compact marked Vickers hardness of Hv 2750 at maximum.
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Hiroyuki Suzuki,Takayoshi Saito,Tetsuo Katsuura,Yoshihiro Shimomura 대한인간공학회 2014 대한인간공학회 학술대회논문집 Vol.2014 No.5
A diagnostic ultrasound system is an apparatus to aid in examination and diagnosis by displaying cross sectional images of body tissues, their movements, and blood flow produced based on the intensities and phases of reflected echoes. Most the operators operate the probe by the right hand and the operation panel by the left hand during ultra -sonic diagnosis in Japan.Ultrasound examinations tend to put sonographers in unnatural postures, which may lead to musculoskeletal disorders. In this study, we focused on the height and the horizontal positioning of the operation panel of the diagnostic ultra -sound system to quantitatively assess the influence of panel height (work plane height) and work plane position on musculoskeletal stress during scanning in a sitting position. Eight subjects (6 males and 2 females) were asked to perform a simulated scanning task that involved touching 9 points on the operation panel at 4 different panel heights. Five subjects (2 males and 3 females) were asked to perform a simulated scanning task that involved touching five points on the control panel, with the work plane set at different positions in space. Electromyograms of each part of the body and wrist joint angles indicated that the optimum height of the operation panel during scanning in a sitting position was elbow height, the least stressful position of the left hand was about 350 mm from the center of the trunk in the longitudinal (front–back) direction and 100 mm left of the center of the trunk in the lateral (right–left) direction. The height of the operation panel during scanning in a sitting position affects the stress on the forearm and shoulder. We indicated that the optimum height of the operation panel was elbow height. The longitudinal position of the control panel during scanning in a sitting position affected the stress in the left forearm and left lumbar regions. The lateral position of the control panel during scanning in a sitting position affected the stress in the left shoulder rgion.We indicated that the least stressful position of the left hand was these on the horizontal positioning of the operation panel.
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Flow Patterns in Green Bodies Made by High-Speed Centrifugal Compaction Process
Suzuki Hiroyuki Y.,Urabe Katsuaki,Takano Tomoki,Kuroki Hidenori 한국분말야금학회 2006 한국분말야금학회 학술대회논문집 Vol.2006 No.1
High-Speed Centrifugal Compaction Process (HCP) is a wet compacting method, in which powders are compacted under a huge centrifugal force. The HCP was well applied to small alumina specimens, but the compact easily cracked when we applied the HCP to other materials. We clarified how the cracks introduced and found that the formation of such a flow pattern was related to the Colioli's force in the centrifugal field.
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Suzuki Hiroyuki Y.,Kuroki Hidenori 대한금속재료학회 2004 METALS AND MATERIALS International Vol.10 No.2
A new compacting method for powder materials is presented. High-speed Centrifugal Compaction Process (HCP) utilizes centrifugal force of about 10,000 g for the compaction. WCP is suitable for net shape compaction of fine sub-micron and nano-powders. HCP possesses a unique compacting mechanism that is different from other colloidal processes including Pressure Casting (PC), and has a number of useful characteristics. HCP has a higher compacting speed than PC, wide applicability for net shape formation, as well as a defect removing function. Because of homogeneous and flawless green microstructure, HCP alumina shows superior sinterability and higher strength and hardness than most of other aluminas.
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