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핸드볼 선수의 체력에 관한 연구 : 전일본선수와 일체대선수의 형태, 체력의 비교
申吉洙,竹內正雄,阿部德之助,北川勇喜,松井幸嗣,森川壽人,西山逸成 圓光大學校 附設 體力科學硏究所 1989 體力科學硏究 Vol.11 No.-
The purpose of the study was to find the structure andfunctionpattern of Japan handball players. The result of these tests are shown on the followings. 1. Between the body height and body weight, Japan player is significantly higer than that of physical education's player in Japan. From the statistically, Japan Physical education player is lower than that of player in Japan. 2. Between flexion strength of upper-arm and fore-arm circumference, Japan physical education player is lower than that of player in Japan. 3. Among the back strength, ball-speed, maximum oxygen uptake, Japan physical education player is lower than that of players in Japan. 4. Between the 12minute-run and gripping strength, Japan player is the same that of physical education colleage's player in Japan.
T. Kosaka,C. Higashihama,T. Ishihara,H. Matsumori,N. Matsui 전력전자학회 2023 ICPE(ISPE)논문집 Vol.2023 No.-
This paper presents design study on a lightweight quasi-coreless surface permanent magnet synchronous motor (SPMSM) employing Carbon Fiber Reinforced Plastics (CFRP) as the stator body to make it lighter. Stator body is composed of CFRP, a little soft magnetic composites core and aluminum winding for high power density. The design procedure for lightening the quasi-coreless SPMSM and experimental drive performance evaluation results are reported. Finally, remaining issues which have been founded are discussed.
Matsui, T. Asian Australasian Association of Animal Productio 2012 Animal Bioscience Vol.25 No.5
Domestic animals, including ruminants, can synthesize vitamin C (VC) in their liver; as such, the dietary requirement for VC has not been confirmed in these animals. The adequacy of VC has been evaluated by quantifying VC levels in plasma, but the reported values in bovine plasma have been widely variable. Plasma VC concentration is decreased by heat stress, hepatic lesions, fattening, and infectious diseases such as mastitis in cattle. Therefore, VC supplementation is potentially beneficial for cattle with low plasma VC concentration. This review discusses the methods for determination of plasma VC concentration in cattle, VC nutrition, and the efficacy of VC supplementation in calves, dairy cattle, and beef cattle. Additionally I propose a reference range for plasma VC concentration in Japanese Black cattle.
Experimental Studies on Drive Performances of Less Rare-Earth PM Hybrid Excitation Motor
T. Kosaka,T. Hirose,N. Matsui 전력전자학회 2011 ICPE(ISPE)논문집 Vol.2011 No.5
This paper presents feasibility studies on hybrid excitation motor (HEM) as a candidate of less rare-earth permanent magnet and high power density machine for hybrid electric vehicle drives. The construction, the basic working principle focusing on variable field control capability and the design concept of HEM are overviewed. After making the design restrictions and specifications clear, the drive performances of HEM designed are evaluated based on 3D-FEA. As a result, the proposed motor makes possible to reduce the volume of rare permanent magnet by approximately half of that used in existing interior permanent magnet synchronous motor for LEXUS RX400h while keeping the power density intact. With comparisons between the measured and the computed drive performances of the trial manufacturing of the downsized motor, it is verified that HEM becomes an attractive candidate as a less-rare-earth permanent magnet and high power density motor for HEV drives.
T. Matsui,E. Taketani,H. Tanaka,K. Morii,N. Fujimura,T. Ito 한국물리학회 2003 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.42 No.IV
We have succeeded in preparing single crystalline lms of BaFeO3, which may contain unusual Fe4+ ions, on (100) SrTiO3 substrates by pulsed laser beam deposition. The RHEED patterns for the lms on the (100) substrates apparently show a C4 symmetry, suggesting that the sample had a pseudo-cubic perovskite structure rather than hexagonal unit cell. The (100) epitaxially grown lms were found to be highly insulating, up to the leakage current density lower than 1 A/cm2 at the bias voltage of ..1:5 V. In addition, the lms showed a high value of dielectric constant of " = 59, and relatively small dissipation factor of about 0.07 at 100 kHz. The samples were also revealed to have a remanent magnetization at 300 K.
Matsui, T.,Kawabata, T.,Harumoto, T.,Yano, H. Asian Australasian Association of Animal Productio 1992 Animal Bioscience Vol.5 No.2
Three female sheep were daily administered a pyrophosphate analogue, disodium 1-hydroxyethylidene-1, 1-bisphosphonate (HEBP) at the level of 4 mg/kg body weight. HEBP largely suppressed bone resorption, which was indicated by the reduction in plasma free hydroxyproline concentration and in calcium mobilization rate during the intravenous infusion of disodium ethylenediaminetetraacetate (EDTA). Contrary to the suppression of bone resorption, plasma total-calcium, magnesium and phosphorus concentrations were not changed by HEBP administration. These results suggest that bone mineral crystals play a meaningless role on calcium, magnesium and phosphorus homeostasis in ruminants if they are fed adequate amounts of these minerals. Plasma magnesium and phosphorus concentrations were not significantly changed after feeding. However, plasma total-calcium was decreased after feeding in both periods and the reduction seemed to be remarkable in the HEBP-treated period. Infusion of EDTA more remarkably reduced plasma ionized calcium concentration in the HEBP-treated that in the untreated period and the recovery of ionized calcium was retarded by HEBP administration. These results suggest that calcium release from bone is necessary for maintenance of plasma calcium when animals rapidly lose calcium.