検索結果 1262 件
著者 | Sakoda, Akihiro| Hanamoto, Katsumi| Ishimori, Yuu| Nagamatsu, Tomohiro| Yamaoka, Kiyonori| |
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発行日 | 2008-06-23 |
出版物タイトル | Radiation Measurements |
巻 | 43巻 |
号 | 1号 |
資料タイプ | 学術雑誌論文 |
著者 | Deng, Mingcong| Inoue, Akira| Okazaki, Satoshi| Ueki, Nobuyuki| |
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発行日 | 2006-6 |
出版物タイトル | Intelligent Control and Automation |
巻 | 2巻 |
資料タイプ | 学術雑誌論文 |
著者 | ルクマン ハキム| |
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発行日 | 2010-03-25 |
出版物タイトル | |
資料タイプ | 学位論文 |
著者 | モハメド モハメド エルモシ シャタット| |
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発行日 | 2010-03-25 |
出版物タイトル | |
資料タイプ | 学位論文 |
JaLCDOI | 10.18926/21337 |
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タイトル(別表記) | The Effect of a Single Cold Bath in 27℃ Water on Portal Circulation Time |
フルテキストURL | 031_001_004.pdf |
著者 | 仲原 泰博| |
抄録 | Following Ueda-Yasuda's procedure, the author observed changes on the portal blood circulation time, the blood pressure and the pulse rate of five normal men following a cold bath in water. Measurements were taken three times 30 minutes before the bath, immediately after the bath and 30 minutes after the bath (the bath was either 5 or 10 minutes in duration, and ranged in temperature from 26°to 28℃). Portal blood circulation time immediately after a 10 minute cold bath was found to be probably shortened as compared with that taken before the cold bath. The changes in blood pressure and pulse rate observed after the cold bathing were similar to those reported by other authors. |
出版物タイトル | 岡山大学温泉研究所報告 |
発行日 | 1963-01-25 |
巻 | 31巻 |
開始ページ | 1 |
終了ページ | 4 |
ISSN | 0369-7142 |
関連URL | http://eprints.lib.okayama-u.ac.jp/21336 |
言語 | 日本語 |
論文のバージョン | publisher |
NAID | 40017532387 |
JaLCDOI | 10.18926/21330 |
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タイトル(別表記) | The Effect of A Single Bath in Radioactive Hot Spring Water on Variability in Electrocardiograms of Patients with Internal Diseases (1) Repeat Variability in Electrocardiograms of the 100 Patients without Bathing |
フルテキストURL | pitsr_033_029_038.pdf |
著者 | 北山 稔| 河田 義郎| |
抄録 | The authors studied time-to-time variability of 100 patients with internal diseases in 100 ECG's over a period of 15 minutes. The variavirity were observed on eleven electrocardiographic items which were measured in 12 leads (I~III, (a)V(R)~(a)V(F), V(1~6)). The electrocardiograms were recorded by same technician, who carefully recorded in confomity to the description on the variability due to techinical and biologocal sources in Simonson's writing and were measured by one of the authors. Frequency distribution of differences between each two electrocardiograms of the same patients are shown in Figures (from 1 to 11) and 5% rejection limits of these differences, which were calculated in use of the stochastics, were as follows : P duration (sec. ) : + 0.022 >X(0)> - 0.021 P-Q duration (sec.) : + 0.029 >X(0)> - 0.024 QRS duration (sec.) : + 0.018 > X(0)> - 0.013 R-R interval (sec.) : + 0.168 >X(0)> - 0.141 QT Ratio (%) + 10.01 >X(0)> - 7.89 QT(c) : + 0.032 >X(0)> - 0.022 P/PR segment : + 0.914 >X(0)> - 0.832 QT/TQ + 0.192 >X(0)> - 0.190 T/R V(5) : + 0.116 >X(0)> - 0.090 AQRS (front. plane) : + 13. 29°>X(0)> - 13.83° AT (front. Plane) : + 14.88°>X(0)> - 16.94° |
出版物タイトル | 岡山大学温泉研究所報告 |
発行日 | 1964-03-25 |
巻 | 33巻 |
開始ページ | 29 |
終了ページ | 38 |
ISSN | 0369-7142 |
言語 | 日本語 |
論文のバージョン | publisher |
NAID | 120002311006 |
JaLCDOI | 10.18926/21324 |
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タイトル(別表記) | Determination of Dissolved Gases in the Ground Water at Mt. Daisen |
フルテキストURL | pitsr_034_053_062.pdf |
著者 | 渡辺 晃二| 奥野 孝晴| |
抄録 | 鳥取県大山火山の西北麓の地下水中に潜存するガス成分比は Ar : 0.34~0.40 (cc/l) 1.48~1.64 (%) O(2) : 6.69~9.08 (cc/l) 27.92~35.30 (%) N(2) : 15.16~17.23 (cc/l) 63.22~67.92 (%) の範囲内で定量できる.また,飽和度は次の如くである. O(2) : 87.8~113.9 (%) N(2) : 110.5~123.2 (%) この結果を地表水と比較して,O(2)の飽和度は小さいが,量的な差異はあまりみられず,地表水と地下水の中間的な性質を示している.地質構造,地形が溶存ガス成分比に及ぼす影響は,地下水の流通経路が長距離とみなされる場合に若干のO(2)の消費が認められ,短距離で湧出したと思われるものにはO(2)の飽和度が大きい傾向がある.また,水理地質的にみて,地質と湧出量には密接な関連を見出せるが,ガス成分には影響を与へてはいない. |
出版物タイトル | 岡山大学温泉研究所報告 |
発行日 | 1964-10-25 |
巻 | 34巻 |
開始ページ | 53 |
終了ページ | 62 |
ISSN | 0369-7142 |
言語 | 日本語 |
論文のバージョン | publisher |
NAID | 120002310987 |
JaLCDOI | 10.18926/21323 |
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タイトル(別表記) | Mineral Composition of Boring Core at Tottori Hot Spring |
フルテキストURL | pitsr_034_041_052.pdf |
著者 | 渡辺 晃二| |
抄録 | 鳥取温泉の深度300mに及ぶ試錐のボーリング・コアを検討した結果,主成分鉱物として,石英,長石類(斜長石,加里長石,)と二次的生成鉱物としてモンモリロナイト,カオリナイト,イライト,緑泥石,黄鉄鉱などを認めた.このうち,イライトは堆積岩中に普遍的に存在し,更に緑泥石も全般的にしかも第三紀層で多量に認められている.モンモリロナイトは方解石と共に温泉による生成が考へられ,また,カオリナイトは表土層にのみ認める事ができる.一方,加里長石,黄鉄鉱,緑泥石の産出状態,及びコアが示す粒度,酸化状態からして第四紀層の堆積環境が推定され,25mを境として下部は数回の陸化を含む浅い堆積層であるのに対し,上部は比較的深い.背後供給地から離れた海成層を示唆する. |
出版物タイトル | 岡山大学温泉研究所報告 |
発行日 | 1964-10-25 |
巻 | 34巻 |
開始ページ | 41 |
終了ページ | 52 |
ISSN | 0369-7142 |
言語 | 日本語 |
論文のバージョン | publisher |
NAID | 120002310959 |
JaLCDOI | 10.18926/21227 |
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タイトル(別表記) | Radioactive spring waters and catecholamines(1) |
フルテキストURL | 044_041_045.pdf |
著者 | 御船 政明| 伊東 恵子| |
抄録 | ONODA proved by Laewen-Trendelenburg's method that fresh radioactive thermal waters in Misasa Spa dilated the blood-vessel. WENSE repor ted that adrenal in was inactivated in the thermal water of Bad Gastein (Austria), its radon content being about the same of thermal water of Misasa . The authors conE i rmed by means of gas chromatography. procedures and operat ional condi tions were shown in Table 1 and 2, that radioactive thermal water of Misasa inhibited action of epinephrine in vitro, and the radon cotent of thermal waters promoting the inactivation of epinephrine. |
出版物タイトル | 岡山大学温泉研究所報告 |
発行日 | 1975-03-25 |
巻 | 44巻 |
開始ページ | 41 |
終了ページ | 45 |
ISSN | 0369-7142 |
言語 | 日本語 |
論文のバージョン | publisher |
NAID | 120002311023 |
JaLCDOI | 10.18926/21213 |
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タイトル(別表記) | The effect of radioactive thermal bathing upon catecholamines of the whole brain of male mice |
フルテキストURL | pitsr_045_007_010.pdf |
著者 | 伊東 恵子| |
抄録 | The author studied the changes of catecholamine levels of the whole brain of male mice weighing 15-20g before and after a single bathing for 20 minutes, 37±1℃ in temperature, in the radioactive hot spring in Misasa (Rn content : 74.83×10(-10)C/l), and compared the results obtained with those of the plain hot water bathing. The catecholamines (dopamine and noradrenaline) were measured by gaschromatographic method using electrone capture detector. It may be summarized as follows : 1. No significant change of dopamine and noradrenaline levels of the whole brain of mice was recognized before and after the plain hot water bathing used as a control. 2. Noradrenaline levels of the whole brain of mice had increased following the radioactive hot spring bath, and remained at same levels for 30 minutes after bathing. Dopamine levels had no change immediately after bathing, but had lowered at 30 minutes from the time of the bath. 3. Causes of these results are under investigation. |
出版物タイトル | 岡山大学温泉研究所報告 |
発行日 | 1976-03-25 |
巻 | 45巻 |
開始ページ | 7 |
終了ページ | 10 |
ISSN | 0369-7142 |
言語 | 日本語 |
論文のバージョン | publisher |
NAID | 120002310996 |
JaLCDOI | 10.18926/21205 |
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タイトル(別表記) | Hydrogen and oxygen isotopic ratios of thermal and mineral springs in Arima area |
フルテキストURL | pitsr_043_015_028.pdf |
著者 | 松葉谷 治| 酒井 均| 鶴巻 道二| |
抄録 | Saline waters of thermal and mineral springs in Arima area, at Takarazuka, and in Ishibotoke area of Kawachinagano City indicate wide ranges of δD and δ(18)O values (Table 1). Excellent linearity exists between the δD and δ(18)O values (Fig. 1) and between the δ(18)O value and the chloride concentration (Fig. 2). These facts as well as the chemical evidence of the previous investigators strongly support the view that Arima springs are admixtures of a single deep brine and local ground water (TSURUMAKI, 1964). The deep brine may have the δ(18)O value of +8.0~+8.5‰, the δD value of -25~-30‰, and the chloride concentration of 1.20~1.25 eq/l, which were estimated from the water of the maximum salinity so far reported. Because the thermal and mineral springs in Arima area closely associate with the upper Cretaceous granitic rocks, and the estimated δ(18)O value of the deep brine is similar to a value of water in isotopic equilibrium with those granitic rocks at 500~600℃, the deep brine of Arima might have been the magmatic water of those granitic rocks. The mineral springs at Takarazuka and in Ishibotoke area also show the similar linearity among Cl(-), δ(18)O and δD to those in Arima area. Therefore it is assumed that the mineral springs at Takarazuka may be of the same origin as that in Arima area, and the mineral springs in Ishibotoke area might have been the fluid associated with Ryoke metamorphic rocks. Alternatively, the deep brine in Arima area may be isotopically and chemically similar to the saline formation waters in Illinois basin (GRAF et al., 1966). The high δD values and salinities of those formation waters were attributed to the isotopic and chemical fractionation during the passage of water through sediments. The deep brine in Arima area may be genetically similar to those saline formation waters. If such a saline water could have formed in Osaka basin, it is not surprising to find out the similar brines at Arima and Ishibotoke which are the northwestern and southeastern rims of the basin, respectively. At the present, it cannot be answered which of these two models is more probable. Further studies on other saline springs fluid inclusions of Cretaceous granitic rocks may be useful in order to solve this problem. |
出版物タイトル | 岡山大学温泉研究所報告 |
発行日 | 1974-03-25 |
巻 | 43巻 |
開始ページ | 15 |
終了ページ | 28 |
ISSN | 0369-7142 |
言語 | 日本語 |
論文のバージョン | publisher |
NAID | 120002310971 |
JaLCDOI | 10.18926/21203 |
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タイトル(別表記) | Determination of copper and zinc in serum by atomic absorption spectrophotometry |
フルテキストURL | pitser_046_025_035.pdf |
著者 | 古野 勝志| |
抄録 | Copper (Cu) and Zinc (Zn) in serum of 113 healthy controls (43 males and 70 females) and of 68 patients with rheumatoid arthritis (19 males and 49 females) were determined using a HITACHI MODEL 207 atomic absorption spectrophotometer. Wavelength and lamps current of Cu and Zn were setted at 3247 A, 2139 A, and 10mA, 9mA respectively. Flow rate of acetylene and air were setted at 3.0 l/min, and 13.0 l/min. The stock standard solutions of Cu and Zn were 0.5 mg, 1.0mg, 2.0mg and 3.0mg per 100mE in 0.01 N·HCl. For working standard solutions, these stock standard solutions were diluted to 50μg/100ml. 100μg/100ml, 200μg/100ml and 300μg/100ml with 20% glycerine. Serum and working standard so· lutions of Cu and Zn were diluted five fold with deionized distillation water, then aspirated directly into the burner. The relative absorbance was expressed as scale reading by a HITACHI MODEL QPD-54 recorder. Various acids and other elements had few influences on the determi· nations of Cu and Zn. The mean recovery rate of Cu and Zn in serum were 100.5% and 100.8% respectively. By this method, the levels of Cu and Zn in healthy controls were 103.0±14.5 (S.D.), 116.2±18.6 (S.D.) μg/100ml in males and 108.7±19.6 (S. D.), 110.3±14.7 (S.D.) μg/100ml in females respectively. No sex difference were observed. The ratio of Cu and Zn (Cu/Zn ratio) of healthy controls were 0.89±0.17 (S. D.) in males and O.99±0.25 in (S.D.) females. The sex differrences of Cu/Zn ratio were statistically significant (p<0.05). The levels of Cu and Zn in rheumatoid arthritis were 141.7±25.2 (S.D.). 89.1±14.5 (S.D.) /-Lg/100 mP and 154.l±29.7 (S.D.), 86.7±18.1 (S.D.) μg/100ml in females respectively. No sex differren· ces were observed. The Cu/Zn ratio were 1.64±0.43 (S.D.) in males and 1.82±0.48 (S.D.) in females, wich showed no sex differrences. In patients with rheumatoid arthritis, serum Cu levels were significantly higher (P<0.001) and serum Zn levels were significantly lower (P<0.001) than in healthy controls in both sexes. The Cu/Zn ratio were significantly higher (P<0.001) rheumatoid arthritis than in controls. The serum Cu in 13 of 19 males (68%), and 30 of 49 females (61 %), with rheumatoid arthritis were shown to be above the upper limit of 5% rejection limit in healthy controls. The serum Zn in 3 of 19 males (16%), and in 24 of 49 (47%) with rheumatoid arthritis were shown to be below the lower limit 5% rejection limit in healthy controIs. The Cu/Zn ratio in rheumatoid arthritis, in 14 of 19 males (74%), and in 35 of 49 females (71%) were shown to be above the upper limit of 5% rejection limit in healthy of males and females. So, differences in Cu/Zn ratio between healthy controls and rheumatoid arthritis were proved to be more pronounced. |
出版物タイトル | 岡山大学温泉研究所報告 |
発行日 | 1977-03-25 |
巻 | 46巻 |
開始ページ | 25 |
終了ページ | 35 |
ISSN | 0369-7142 |
言語 | 日本語 |
論文のバージョン | publisher |
NAID | 120002311019 |
JaLCDOI | 10.18926/21202 |
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タイトル(別表記) | Circulatory changes in rheumatoid fingers as estimated by thermography and photoelectric plethysmography |
フルテキストURL | pitser_046_015_023.pdf |
著者 | 太田 隆正| 時岡 正明| 高杉 潔| |
抄録 | In an attempt to evaluate circulatory changes in patients with rheumatoid arthritis (RA), 20 patients with classical or definite RA as determined by ARA criteria and twenty healthy volunteers serving as control were randomly selected. None of the patients showed the clinical signs suggesting Raynaud's phenomenon. Thermograms as well as photoelectric plethysmograms were obtained solely from the right middle finger tip of each examinee. The whole hand was then immersed in the cold (10℃) water and kept there for one minute. After wiping away the wet hand with a dry towel very gently, we followed the sequential changes of the tempe· rature of the third finger tip and the period of time necessary for the tip to return to the original temperature prior to the cold water immersion was measured and expressed as 'return time' in minute. Before exposure to the cold, the mean values of temperature of the finger tips between the two groups were not significantly different. As opposed to the normal pattern in which one can find the warmest point at the finger tip and which was more frequently found in the control group of the current study, a type in which the distal part of the finger was much cooler than the proximal area (so-called 'distal cold type') was observed in 8 RA patients, whereas only four demonstrated this pattern in the control group. After brief exposure to the cold, eight out of 20 rheumatoid patients showed much prolonged return time (longer than 20 minutes), while only three of 20 controls remained with prolonged cool periphery, The difference between the two, however, was not statistically significant. Studies of the digital plethysmograph revealed that 70% of all the rheumatoids showed abnormal patterns: sclerotic and monophasic waves were discovered in 55% of the patients. In contrast, seventy percent of the normal control demonstra· ted normal wave pattern. Although the significant difference was not noted, the mean height of the systolic peak of the plethysmograph derived from the rheumatoid group tended to be much reduced, suggesting the reduced blood volume at the finger tips. Six RA patients and 13 normals who showed normal plethysmographic pattern before immersion in the cold water, demonstrated rapid return to the original temperature. Only in one normal control with a normal wave pattern, prolonged return time was observed, although the height of the systolic peak of the plethysmogram in this particular case was well within normal limit. Digital circulatory disturbance, however, was strongly suspected in eight RA patients with severely prolonged return time, They all showed abnormal wave patterns of the plethysmogram, including 2 cases with peripheral plateau wave, Markedly reduced heights of the systolic peaks were also demonstrated in all. Further elaborate studies including digital arteriography were indicated to implicate any organic change in the digital vessels, such as digital arteritis in RA first reported by Bywaters in 1957. |
出版物タイトル | 岡山大学温泉研究所報告 |
発行日 | 1977-03-25 |
巻 | 46巻 |
開始ページ | 15 |
終了ページ | 23 |
ISSN | 0369-7142 |
言語 | 日本語 |
論文のバージョン | publisher |
NAID | 120002310966 |
JaLCDOI | 10.18926/21194 |
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タイトル(別表記) | Stable isotope study of the hotsprings and volcanoes of Hokkaido, Japan |
フルテキストURL | pitsr_047_055_067.pdf |
著者 | 松葉谷 治| 酒井 均| 上田 晃| 堤 真| 日下部 実| 佐々木 昭| |
抄録 | Stable isotope ratios of hydrogen, oxygen, carbon and sulfur of precipitation, thermal and mineral waters, and volcanic gases were measured. The isotopic data combined with chemical and geological information were discussed in terms of origin and evolution of the hotsprings and volcanic gases. The hotsprings along the Uchiura Bay, Oshima Peninsula are mostly near-neutral NaCl-type thermal water and may be divided into three groups : (1) thermal waters isotopically similar to the precipitation of this area, (2) those similar in D/H to the local meteoric waters but enriched by 2 to 3‰ in (18)O compared to the latter, and (3) those enriched significantly in both D and (18)O relative to the local meteoric waters. The first and second types of thermal water probably form from local meteoric water which percolates through "Green Tuff" formations and acquires dissolved chemicals from them. However, high salt concentration and the oxygen isotope shift (thesecond type) may imply that the NaCl-type water of volcanic origin might be involved. On the other hand, the waters of the third group can be explained by mixing of modern sea water into the second type thermal water (in case of Yachigashira) or by incorporation of fossil sea water of Tertiary origin into modern meteoric water (Nigorigawa). Except for Esan, Noboribetsu and Atosanupuri volcanic systems, waters from all the hotsprings and volcanic fumaroles associated with Quaternary volcanic rocks are meteoric in origin. Thermal waters at Esan, Noboribetsu and Atosanupuri have δD = -30~-50 and δ(18)O = -1~+ 3‰ and are enriched in D and (18)O relative to local meteoric water of the respective area. The origin of these waters and the mechanism (s) controlling the isotope ratios could not be made clear by the present study. Interesting is the finding that at Esan, Noboribetsu and Atosanupuri, thermal waters are enriched in D and (18)O relative to near-by fumarolic gases. The enrichment factor is 18 to 26‰ for hydrogen and 4 to 6‰ for oxygen, implying that more than one stages of liquidvapor separation are taking place in underground hydrothermal systems. |
出版物タイトル | 岡山大学温泉研究所報告 |
発行日 | 1978-03-25 |
巻 | 47巻 |
開始ページ | 55 |
終了ページ | 67 |
ISSN | 0369-7142 |
言語 | 日本語 |
論文のバージョン | publisher |
NAID | 40000321119 |
JaLCDOI | 10.18926/21180 |
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タイトル(別表記) | Determination of boron in thermal waters by emission spectrophotometry using "Spectraspan" |
フルテキストURL | pitsr_048_035_041.pdf |
著者 | 御船 政明| 青木 宏子| 鉄本 潤子| 古野 勝志| 森永 寛| |
抄録 | A plasma emission spectrophotometer "Spectraspan" (low power d. c. plasma arc, operating on argon) was evaluated for boron determination in thermal waters. The influence of acids (hydrochloric, nitric and sulfuric acids) and several metallic ions (Na(+). K(+), Mg(2+). Ca(2+)) on emission intensity was studied. There was a linear relationship between emission intensity and boron content from 0 to 500 mg/l. Boron in thermal waters was easily determined by standard addition method. Precision. coefficient of variance and recoveries of known amount of boron added to the sample for 11 repricate analyses were 0.12μg/ml, 2.02%, 95.0-101.7%, respectively. Boron content of 27 thermal waters in the Sanin district was determined. and the highest B content in the sample waters were 8.8 mg/l (Tottori spa) in Tottori Prefecture and 14.6-25.0 mg/l (the thermal springs at the foot of Mt. Sanbe. a non-active quaternary volcano) in Shimane Prefecture. The relationships between B content and water temperature, B content and pH value were not recognized. Significantly positive correlationship was observed between Band Li contents. |
出版物タイトル | 岡山大学温泉研究所報告 |
発行日 | 1979-03-25 |
巻 | 48巻 |
開始ページ | 35 |
終了ページ | 41 |
ISSN | 0369-7142 |
言語 | 日本語 |
論文のバージョン | publisher |
NAID | 120002311017 |
JaLCDOI | 10.18926/21178 |
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タイトル(別表記) | Determination of copper and zinc in synovial fluid by atomic absorption spectrophotometry |
フルテキストURL | pitsr_048_013_023.pdf |
著者 | 古野 勝志| |
抄録 | Copper (Cu) and zinc (Zn) in synovial fluids of 52 patients with rheumatoid arthritis (RA) and of 53 patients with osteoarthritis (OA) were determined using a HITACHI MODEL 207 atomic absorption spectrophotometer. Standard solution of Cu and Zn were 50μg, 100μg, 200μg and 300μg per 100 ml 20 v/v % glycerine containing 0.01 N-HCl. To 0.5ml synovial fluid, 50 units of hyaluronidase was added and then the mixture were incubated for 20 minutes at 37℃. Synovial fluid treated with hyaluronidase and standard solution of Cu and Zn were diluted five fold with deionized distillation water, then aspirated directly into the burner. The relative absorbance was expressed as scale reading by a HITACHI MODEL QPD-54 recoder. The mean recovery rate of Cu and Zn in synovial fluids were 102.0% and 101.9%. By this method the concentrations of Cu and Zn in 52 RA (12 males, 40 females) were 97.6±29.0 (S.D.) μg/100 ml and 83.9±40.1 (S.D.) μg/100 ml ; 97.3±27.1 (S.D.)μg/100 ml, 78.7±29.9 (S.D.) μg /100 ml in 12males and 97.7±29.5 (S.D.) μg/100 ml, 85.5±42.6 (S.D.) μg /100 ml in 40 females respectively. The concentrations of Cu and Zn in 53 OA (14 males, 39 females) were 46.9±14.5 (S.D.) μg/100 ml and 40.8±14.3 (S.D.) μg/100 ml; 47.3±9.7 (S.D.) JLg/100 ml, 45.1±19.0 (S.D.) μg/ 100 ml in 14 males and 46.8±15.8 (S.D.) μg/100 ml, 39.3±11.8 (S.D.) μg/100 ml in 39 females respectively. No sex differences of Cu and Zn values were observed in both RA and OA. In patients with RA, concentrations of Cu and Zn in synovial fluids were signifcantly higher than in OA in both sexes. There were positive correlation between the concentrations of Cu and Zn in 105 patients (RA and OA, r=0.74, p<0.01) , in 52 RA (r=0.54, p<0.01), in 53 OA (r=0.81, p<0.01). In patients with RA, there were no correlation between stage and concentrations of Cu and Zn in synovial fluids. |
出版物タイトル | 岡山大学温泉研究所報告 |
発行日 | 1979-03-25 |
巻 | 48巻 |
開始ページ | 13 |
終了ページ | 23 |
ISSN | 0369-7142 |
言語 | 日本語 |
論文のバージョン | publisher |
NAID | 120002311026 |
JaLCDOI | 10.18926/21168 |
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タイトル(別表記) | Excretion of radon in expired air after bathing and drinking of radioactive hot spring water at Misasa Spa |
フルテキストURL | 049_001_006.pdf |
著者 | 古野 勝志| |
抄録 | Radon (Rn) contents in expired air after bathing, exposure in hot-air room and drinking of Misasa radioactive hot spring water were determined using an ionization chamber equiped with vibrating reed electrometer. The results were as follows; 1. Rn Contents in the indoor and outdoor air of Misasa spa were in the range of 0.5-1.0 pCi/ℓ and 0.4-0.7 pCi/ℓ. 2. Rn contents in the expired air of persons living at Misasa spa area and none spa area were 0.4-0.9 pCi/ℓ, 0.6±0.2 (S.D.) pCi/ℓ and 0.1-0.9 pCi/ℓ, 0.5±0.2 (S.D.) pCi/ℓ respectively and no difference of Rn contents was observed in both groups. 3. The highest Rn contents in the expired air of subjects bathed in radioactive hot spring (Rn ; 58.0×10(-10) Ci/kg, watre temp. : 41±1℃.) were immediately after bathing, and the values were 10.8-25.5 pCi/ℓ (bathing for 5 min.), 16.0-27.9 pCi/ℓ (bathing for 10 min.) and 38.8-59.3 pCi/ℓ (bathing for 15 min.) respectively. Rn contents in expired air were reduced to about 1.0 pCi/ℓ during 120-180 min. after bathing. The longer the bathing time and the younger the subjects, the higher Rn contents in the expired air. The biological half-life of Rn in the expired air of subjects after bathing was 42-43 min. 4. The highest Rn contents in the expired air of subjects exposed in hot-air room (Rn in air; 54.3pCi/ℓ, air temp. : 37-38℃., humidity: 40%, staying for 15 min.), and the values were 4.9-7.8 pCi/ℓ, and gradually reduced to about 1.0 pCi/ℓ during 120 min. The bioligical half-life of Rn in the expired air after leaving the hot-air room was 43 min. 5. Rn contents in the expired air of subjects immediately after drinking of radioactive spring water (Rn contents: 596.8×10(-10) Ci/kg, 500mℓ), were the highest, and the value were 28.0-101.5 pCi/ℓ, and reduced to about 1.0pCi/ℓ during 180 min. after drinking. The biological half-life of Rn in the expired air was 40 min. |
出版物タイトル | 岡山大学温泉研究所報告 |
発行日 | 1979-09-25 |
巻 | 49巻 |
開始ページ | 1 |
終了ページ | 6 |
ISSN | 0369-7142 |
言語 | 日本語 |
論文のバージョン | publisher |
NAID | 40000321143 |
JaLCDOI | 10.18926/21161 |
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タイトル(別表記) | Radon contents in the air of radioactive spring areas |
フルテキストURL | pitsr_050_033_039.pdf |
著者 | 古野 勝志| |
抄録 | Radon(Rn) contents in the air of radioactive spring areas were determined using an ionization chamber equipped with vibrating reed electrometer. The results were as follows: (1) Rn contents in the outdoor air at spa areas of Misasa. Sekigane and Togoo were 0.7 ± 0.4 pCi/l. 0.6±0.3pCi/l and 0.5±0.2 pCi/l respectively. Rn contents in the air both at Misasa and at Sekigane were significantly higher than at none spa area of Kurayoshi city (0.3±0.2pCi/l). (2) Rn contents in the outdoor air at Misasa spa tend to increase from June to September in the year. (3) In usual rooms where spring water is not used. Rn contens in the air were below 1.0 pCi/l. Rn contents in the air of facilities using spring water were determined; peloid therapy room: 2.0±0.4 pCi/l, usual bath rooms: 6.3±1.3 pCi/l (before the bathing). 21.8±2.1 pCi/l (immediately after bathing), Hubbard bath room: 6.7±0.3 pCi/l (before the bubbling), 143.4±69.8 pCi/l (during the bubbling), exercise pool room : 4.3±0.3 pCi/l (before the exercise). 7.4 ± 0.8 pCi/l (during the exercise) and drinking hall: 30.0~47.0 pCi/l respectively. |
出版物タイトル | 岡山大学温泉研究所報告 |
発行日 | 1980-03-25 |
巻 | 50巻 |
開始ページ | 33 |
終了ページ | 39 |
ISSN | 0369-7142 |
言語 | 日本語 |
論文のバージョン | publisher |
NAID | 120002310972 |
JaLCDOI | 10.18926/21159 |
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タイトル(別表記) | An isotope study of hot springs in Nagano Prefecture |
フルテキストURL | pitsr_050_017_024.pdf |
著者 | 松葉谷 治| 酒井 均| 日下部 実| 佐々木 昭| |
抄録 | Water samples from 28 hotsprings and mineral springs in Nagano Prefecture, central Japan, were examined for their stable isotope ratios of hydrogen, oxygen, carbon, and sulfur. Spring waters of Kashio are highly saline and enriched in heavy isotopes of oxygen and hydrogen (δ(18)O=-2.5~-4.6‰, δD=-54~-57‰). Linear relationships among δD, δ(18)O, and Cl(-) suggest that spring waters are the mixtures of a deep brine and local surface water. Extrapolation of the linear relationships indicates that the deep brine is both isotopically and chemically very similar to the deep brine previously suggested for the springs of Arima, Takarazuka, and Ishibotoke of which δD, δ(18)O, and Cl(-) are estimated as -33‰, +8.0‰, and 44g/l, respectively. A common origin may be warranted among these postulated brines, while their provenance is yet to be worked out. The hot springs in Matsushiro are a Na-Ca-Cl type of high carbonate content. Their hydrogen and oxygen isotope ratios (δD=-71~-46‰, δ(18)O=-9.1~-2.0‰) are higher than the local surface water. On the basis of the relationships among δD, δ(18)O, and Cl(-), they are considered to be the mixtures of fossil sea water and certain water of meteoric origin of which Cl(-) is about 4g/l and δ(18)O is higher by about 3‰ than the local surface water. The latter may be meteoric water circulating in the marine sedimentary formations (Green Tuff formations) with soluble sea salts. Isotopic exchange with carbonate minerals in the formations explains its (18)O enrichment. Spring waters from Yashio and Isobe (Gunma Pref.) as well as Yunosawa and Yatate (Akita Pref.) were previously interpreted to be mixtures of fossil sea water and local surface water of low Cl(-) content. Re-examination of their data revealed that the meteoric waters responsible for these springs contain about 3g/l Cl(-), similar to the value obtained for Matsushiro. However, unlike Matsushiro, the meteoric waters in these areas are found to be isotopically similar to the local surface waters. Waters from other hot springs studied here are of simply meteoric origin, thus belonging to the GreenTuff type water previously defined. |
出版物タイトル | 岡山大学温泉研究所報告 |
発行日 | 1980-03-25 |
巻 | 50巻 |
開始ページ | 17 |
終了ページ | 24 |
ISSN | 0369-7142 |
言語 | 日本語 |
論文のバージョン | publisher |
NAID | 120002310953 |
JaLCDOI | 10.18926/21158 |
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タイトル(別表記) | Experimental study of sulfur isotope exchange between S0(4)(2-) and H(2)S (aqueous) at 400℃ and 1000 bars water pressure |
フルテキストURL | pitsr_050_001_015.pdf |
著者 | 鎌田 恵美| 酒井 均| 木島 宣明| |
抄録 | Experimental procedures used in this study are the same as those developed by Sakai and Dickson (1978). 0.005 M Na(2)S(2)O(3) solutions were heated to 400℃ under 1000 bar water pressure in a gold bag of Dickson gold-bag equipment (Fig. 1). At an elevated temperature Na(2)S(2)O(3) quickly and completely decomposed into 1:1 mixture of SO(4)(2-) and H(2)S (eq. (1)) and subsequent isotope exchange (eq. (2)) was monitored by consecutively withdrawing aliquots of solution for chemical and isotopic analyses at desired time intervals. For the preparation of SO(2) for isotope analyses, 2 to 5 mg BaSO(4) was thoroughly mixed with silica glass powder of 10 times the BaSO(4) in weight and heated to 1400℃ or so in sealed, evacuated silica glass tubings (see Fig. 2 and equation (4)). The technique is a modification of Holt and Engelkemeir (1971). The (18)O/(16)O ratios of SO(2) thus formed stayed constant by exchange with silica glass powder (Fig. 3). Numerical data of the three runs performed in this study are summarized in Tables 1 to 3. In runs 2 and 3, a small aliquot of (34)S- enriched H(2)SO(4) was added into the starting solution and thus equilibrium was approached from above the quilibrium value (see Fig. 4). When isotope exchange occurs between two molecules, X and Y, the reaction rate, r, is related to the extent of exchange, F, at given time, t, by equation (17), where X and Y indicate concentrations of given species, α(e), α(o) and α denote the fractionation factor at equilibrium, at time t=0 and at an arbitrary time t, and F = (α - α(o))/(α(e) - α(0)) or the extent of isotope exchange. Assuming the exchange rate is of the first order with respect to both X and Y and to the β'th power of hydrogen ion activity, a(H)(+), eq. (17) reduces to eq. (19), where k(1) denotes the rate constant. If X, Y and pH of solution stayed constant during the run, the half-time, t(1/2), of the exchange reaction can be obtained graphically as shown in Fig. 5. The t(1/2) for runs 1, 2, and 3 are determined to be 5.8, 5.5 and 6.1 hrs, respectively. Introducing F=0.5 and t=t(1/2) into eq. (19), we obtain eq. (20) which is graphically shown in Fig. 6 using the data by the present work and those by Sakai and Dickson(1978). The numerical values of log k(1) + 0.16 may be obtained by extrapolating the lines to pH=0 and, from these values, the rate constant, k(1) , may be calculated for temperatures of 300° and 400℃. From these two values of k(1) and from the Arrhenius plot, the activation energy of the exchange reaction was calculated to be 22 kcal/mole, a much smaller value than 55 kcal/mole obtained by Igumnov (1977). The value of β is found to be 0.29 at 300℃ and 0.075 at 400℃, although the physico-chemical nature of β is not clear to the present authors. Using these values, eq. (24), where C is a constant, is derived which would enable us to calculate the t(1/2) of any system of known ΣS and pH. However, as we do not know yet how β varies with different systems, eq. (24) is applicable only to limited systems in which temperature, total sulfur contents and pH are similar to those of the present study. Fig. 7 illustrates how t(1/2) varies with pH and total sulfur content at 300° and 400℃ and predicts t(1/2) for some solutions obtainable by hydrothermal reactions of seawater with various igneous rocks. The average equilibrium fractionation factor at 400℃ obtained by this study is 1.0153, in good accord with 1.0151 given by Igumnov et al. (1977). Theoretical fractionation factors between SO(4)(2-) and H(2)S have been calculated by Sakai (1968) , who gives too high values compared to the experimental data obtained by this and other researchers (Fig. 9). In the present study, the reduced partition function ratio (R.P.F.R.) of SO(4)(2-) was recalculated using two sets of the vibrational frequencies of SO(4)(2-) (shown in Table 5) and the valence force fields of Heath and Linnett (1947), which reproduces the observed frequencies of SO(4)(2-) better than Urey-Bradley force field used by Sakai (1968). The results of new calculation are shown in Table 6. This table also includes the R.P.F.R. of H(2)S which was calculated by Thode et al. (1971). Using these new R.P.F.R. of SO(4)(2-) and H(2)S, the fractionation factors between SO(4)(2-) and H(2)S were calculated and are listed in the last column of Table 6 and plotted in Fig. 9. Fig. 9 indicates that the new calculation gives values more shifted from the experimental values than before. The major sulfate ions in our solution at 300° and 400℃ exist as NaSO(4)(-) (Sakai and Dickson, 1978; see also Table 4 of this paper) and, therefore, the measured fractionation factors are those between NaSO(4)(-) and H(2)S. The discrepancy between the theory and experiments may, at least, be partially explained by this fact, although other more important reasons, which are not known to us at the moment, may also exist. |
出版物タイトル | 岡山大学温泉研究所報告 |
発行日 | 1980-03-25 |
巻 | 50巻 |
開始ページ | 1 |
終了ページ | 15 |
ISSN | 0369-7142 |
言語 | 日本語 |
論文のバージョン | publisher |
NAID | 120002310990 |