著者

神谷 茂保

出版者

岡山理科大学

雑誌

岡山理科大学紀要. A, 自然科学 (ISSN:02857685)

巻号頁・発行日

vol.28, pp.309-318, 1992

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この小論の目的は, 日本の代表的な19の河川(図1に位置を示す)の実験的フラクタル次元, 分岐比を求め河川の様相などとの関連についての調査の結果を報告することである。本調査のためには, 昭文社発行の全日本道路地図を用いた。また私たちが直接得たデータ以外は, 理科年表(1987年版)及び文献中のデータを使用した。

著者

松原 孝 猪木原 孝二 川上 雅之

出版者

岡山理科大学

雑誌

岡山理科大学紀要. A, 自然科学 (ISSN:02857685)

巻号頁・発行日

vol.27, pp.325-335, 1991

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The purpose of this study was analysis on the results of the effect of darts training by the basketball player of high school students. The subjects in this study were group A (12th grade), group B (11th grade) and group C (10th grade) of high school students. The effect of training was analysis on the results of points during darts training of 12th. The following results were obtained : 1) The points of darts training were higher with the group C than those with group B. (p<0.025) 2) The points of darts training were higher with the group C than those with group A. (p<0.005) 3) The points of darts training were higher with the group B than those with group A. (p<0.05) 4) The points of darts training by the throw of right hand were higher with shoot at a target of the both eyes than those with shoot at a target of the left eye. (p<0.025) 5) The points of darts training by the throw of left hand were higher with shoot at a target of the both eyes than those with shoot at a target of the right eye. (p<0.05)

著者

幸村 明典 片山 謙吾 南原 英生

出版者

岡山理科大学

雑誌

岡山理科大学紀要. A, 自然科学 (ISSN:02857685)

巻号頁・発行日

vol.46, pp.39-48, 2010

著者

濱本 高志 宇根 智明 森田 展行 大倉 充 塩野 充

出版者

岡山理科大学

雑誌

岡山理科大学紀要. A, 自然科学 (ISSN:02857685)

巻号頁・発行日

vol.36, pp.103-108, 2000

著者

川上 雅之 猪木原 孝二 松原 孝 太田 正和

出版者

岡山理科大学

雑誌

岡山理科大学紀要 A 自然科学 (ISSN:02857685)

巻号頁・発行日

no.25, pp.p361-375, 1989

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The purpose of this study was analysis of physical function affected by the climb down of group climber. The subjects was 16 healthy male and female college students in 400 climbers of 18 to 21 and they were divided into two groups : Group A (take 10 minute rest during climb down), Group B (take no rest during climb down), The influence of physical function inferred to the percent of HR max (%HRmax) from heart rate during climb up, rest, mountaintop and climb down. The following results were obtained : 1) The mean of % HR max at climb down of two groups indicated of the numerical value about 60 % of HR max. 2) The % HR max of each subject during climb down was 40 % through 80 % of HR max. 3) Therefore, the most important thing during climb down for group climber continued to keep the same walking speed during climb down. Becouse the difference of physical function was affected by walk distance and the condition of natural environment. The most important thing on the walking speed during climb down was to walk at the rate of about 30 m per minute. The best condition of % HR max during climb down is throught to keep numerical value about 60 % of HR max on the work load during climb down.

著者

堂田 周治郎 逢坂 一正 立石 佳男

出版者

岡山理科大学

雑誌

岡山理科大学紀要 A 自然科学 (ISSN:02857685)

巻号頁・発行日

no.19, pp.p131-146, 1983

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The purpose of this study is to investigate the effects of the nozzle shape on the jet behaviour by means of the numerical experiment. The calculation was carried out for the three types of the fluidic devices that have different length of the nozzle throat. The flow was regarded as unsteady, three-dimensional, incompressible, viscous and laminar flow, and the primitive Navier-Stokes equations was calculated by use of predictor-corrector method. The obtained results are summerized as follows : 1. For a small aspect ratio, the jet attaches strongly when the length of the nozzle throat is shortened. On the other hand, for a large aspect ratio, it can be considered that there is no effect of the length of the nozzle throat. 2. The flow shows the symmetrical behaviour with respect to the nozzle, that is, in the upper stream, there exists a fluid flow from the midplane to the bottom bounding wall, and in the downstream, there exists a fluid flow from the bottom wall to the midplane. 3. When the length of the nozzle throat becomes shorter, the jet behaves in the similar manner to the case of higher Reynolds Number. This is closely related to the velocity distribution at the nozzle exit.

著者

坂本 尚史 妹尾 護

出版者

岡山理科大学

雑誌

岡山理科大学紀要 A 自然科学 (ISSN:02857685)

巻号頁・発行日

no.24, pp.p75-82, 1988

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Ultramafic inclusions were found in high magnesian andesite at Dogo, Matsuyama City, Ehime Prefecture, Southwest Japan. They are classified into two types, from the texture and chemical composition of minerals ; type-1 and type-2. Type-1 inclusion is harzburgite, characterized by the presence of Al-rich spinel. Type-2 inclusion is composed of dunite and harzburgite, with Cr-rich spinel. Olivine fabric patterns of the inclusions exhibit high concentration of X and Z axes, which differ from those of cumulate rocks. It seems that the textural development of the inclusions occurred through deformation process. Petrographical evidence supports this. Dislocation structure of olivine from the inclusion was examined. The dislocation density of olivines for type-2 inclusion falls into the range of 1×10^7 to 5×10^7cm^<-2> . The subgrain size of olivines from type-1 and type-2 inclusion has narrow range from 20 to 35μm. Considering the rate of stress-responce of dislocation density, subgrain size and grain size, it is concluded that type-1 inclusion deformed in nearly steady-state creep, whereas type-2 inclusion deformed in transient creep.

著者

岡山理科大学 [編]

出版者

岡山理科大学

巻号頁・発行日

1982

著者

奥村 真之 愛甲 博美 "オクムラ マサユキ アイコ ヒロミ" Masayuki "Okumura Hiromi" Aikoh

出版者

岡山理科大学

雑誌

岡山理科大学紀要. A (ISSN:02857685)

巻号頁・発行日

no.51, pp.41-46, 2015

著者

山口 一裕 西本 憲正 三宅 寛 柿谷 悟 光藤 裕之

出版者

岡山理科大学

雑誌

岡山理科大学紀要. A, 自然科学 (ISSN:02857685)

巻号頁・発行日

vol.31, pp.147-153, 1995

被引用文献数

1

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"Kinsai/Ginsai" is one of fascinating patterns of Bizen-yaki and rarely appears. The formation mechanism of "Kinsai/Ginsai" has been investigated to improve reproducibility on the formation of "Kinsai/Ginsai". "Kinsai/Ginsai" is reproduced by forming carbon film on the surface of Bizen-yaki body or mica in the vacuum evaporator. The color on Bizen-yaki body or mica gradually changed from silver to gold in proportion to the increasing thickness of carbon film. The thickness of carbon film on mica, which was measured by the Aomic Force Microscope (AFM), ranges from 10 to 20nm in silver and from 40 to 50nm in gold.

著者

鄭 実生 本安 竜平 萬本 義徳

出版者

岡山理科大学

雑誌

岡山理科大学紀要 A 自然科学 (ISSN:02857685)

巻号頁・発行日

no.30, pp.p103-113, 1994

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The anomaly of transverse relaxation rate of YBa_2Cu_3O_<7-δ> is mainly observed at 35K and near superconducting transition. The anomaly at 35K can not be explained by dynamical factor. It is considered that the static factor causes the anomaly and it is the change of anisotropy of indirect interaction between nuclear spins because the change of shape of decay curve accompanies with the anomaly. If the interaction between electron spin and nuclear spin obeys Mila-Rice theory even in superconducting state, it is considered that the change of the anisotropy is owing to change of electron spin correlation. As for the anomaly near superconducting transition it seems to be owing to an extraordinarily slow motion such as softening.

著者

高山 和敏 東 恒人 中川 紀美雄

出版者

岡山理科大学

雑誌

岡山理科大学紀要. A, 自然科学 (ISSN:02857685)

巻号頁・発行日

vol.32, pp.173-186, 1996

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Both effect of mother wavelet functions on wavelet transform and application method of wavelet transform to sound analysis are described in this paper. As for the former, in case that the speedup of calculation is desired Haar function, in case that qreater importance is attached to frequency components Meyer function, in case that qreater importance is attached to time components Mexican function and in case that both time and frequency components are checked Gabor function can be recommended for application, respectively. As for the later, in case that the distribution of frequency components as time passes is investigated Gabor function, furthermore, in case of minutely examining the difference between consonants and vowels Mexican function and in case of fully checking the distribution of formants in consonants or vowels Meyer function can be recommended for use, respectively. The effectiveness of properly using mother wavelet functions in sound analysis has been found as in the above.

著者

猪木原 孝二

出版者

岡山理科大学

雑誌

岡山理科大学紀要. A, 自然科学 (ISSN:02857685)

巻号頁・発行日

vol.27, pp.297-310, 1991

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The purpose of this study is an analysis of the results of the Seoi-nage Technique concerning the angles of the waist to the top of the head and the waist to the wrist, and that of the waist to the top of the head and the waist to the knee of the throwing judoist. The following results were obtained. 1) As for the judoist whose weight is below 60kg, the average angle of pulling hand is 23,22±3.25 for Yuko, 23,18±2.57 for Wazaari and 24.74±1.58 for Ippon. The one of pushing hand is 30.20±3.23 for Yuko, 30.93±3.80 for Wazaari and 30.01±3.02 for Ippon. 2) As for the judoist whose weight is below 65kg, the average angle of pulling hand is 23.40±2.49 for Yuko, 23.41±2.36 for Wazaari and 24.00±3.08 for Ippon. The one of pushing hand is 31.71±1.89 for Yuko, 32.15±3.04 for Wazaari and 32.40±3.26 for Ippon. 3) As for the judoist whose weight is below 71kg, the average angle of pulling hand is 23.98±1.69 for Yuko, 23.78±1.87 for Wazaari and 24.01±1.93 for Ippon. The one of pushing hand is 33.66±2.45 for Yuko, 33.06±2.57 for Wazaari and 33.24±2.53 for Ippon. 4) As for the judoist whose weight is below 78kg, the average angle of pulling hand is 23.49±2.12 for Yuko, 24.52±1.76 for Wazaari and 24.29±1.45 for Ippon. The one of pushing hand is 34.20±1.12 for Yuko, 33.65±2.03 for Wazaari and 34.52±2.02 for Ippon. 5) As for the judoist whose weight is below 86kg, the average angle of pulling hand is 25.14±1.64 for Yuko, 24.68±2.68 for Wazaari and 24.10±1.87 for Ippon. The one of pushing hand is 36.00±1.67 for Yuko, 33.90±2.07 for Wazaari and 34.23±1.54 for Ippon. 6) As far as pulling hand in all weights are concerned, the average angle is 23.84±0.77 for Yuko, 23.91±0.66 for Wazaari and 24.23±0.31 for Ippon. As far as pushing hand in all weights are concerned, the average angle is 33.15±2.25 for Yuko, 32.74±1.21 for Wazaari and 32.88±1.81 for Ippon. 7) From above results, angle from 23 to 24 is the ideal approach for pulling hand, angle from 32 to 33 is ideal approach for pushing hand. I recognize we should research the up and down movement concerning pulling hands form now on.

著者

東 恒人 古川 暢隆 高山 和敏 中川 紀美男

出版者

岡山理科大学

雑誌

岡山理科大学紀要. A, 自然科学 (ISSN:02857685)

巻号頁・発行日

vol.32, pp.271-279, 1996

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This paper describes characteristics of whispered by compearing with voiced sound in case of plosive consonant. The following characteristics are shown. (1) Formants of back vowel almost agree with those of isolated vowel. (2) Back vowels influence on formants of constnant and attributes of synthesis sounds.

著者

平野 博之

出版者

岡山理科大学

雑誌

岡山理科大学紀要. A, 自然科学 (ISSN:02857685)

巻号頁・発行日

vol.35, pp.231-236, 1999