検索結果 24394 件
| JaLCDOI | 10.18926/15574 |
|---|---|
| フルテキストURL | Mem_Sch_Eng_OU_2_39.pdf |
| 著者 | Ohta Mutsuo| Hashimoto Fumio| Tanimoto Tadashi| |
| 抄録 | Binding energies between a vacancy and an atom of lead or gold were measured with the same method as those previously reported. The solid solubility of lead or gold in aluminium is very small, and the small quantity of precipitates are found along grain boundaries in this experiment. Therefore, it was not possible to determine the value of binding energy, but the lower limit of binding energy was estimated. The values of lower limit for Pb-Vacancy and Au-Vacancy binding energy were 0.38 eV and 0.35 eV, respectively. |
| 出版物タイトル | Memoirs of the School of Engineering, Okayama University |
| 発行日 | 1967-04-01 |
| 巻 | 2巻 |
| 号 | 1号 |
| 開始ページ | 39 |
| 終了ページ | 42 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002307777 |
| JaLCDOI | 10.18926/15572 |
|---|---|
| タイトル（別表記） | A NEW COLORIMETRIC DETERMINATION OF BORIC ACID, BORIC ACID AND FLUORINE CONTENTS OF THERMAL WATERS IN TOTTORI PREFECTURE. |
| フルテキストURL | 006_034_038.pdf |
| 著者 | 芦沢 峻| |
| 抄録 | A new colorimetric method of determination of boric acid was devised, using ion-exchange resin, mannit and bromthymolblue. With this method determination of boric acid becomes capable by adding one ounce of mannit and ten cc. of resin to an ordinary set for the investigation of mineral waters. This method is suitable for the waters.containing little amount of boric acid and for the samples of small amount. Thermal waters in Tottori Prefecture contain four mg of fluorine and ten mg of metabolic acid per liter in average. |
| 出版物タイトル | 岡山大学温泉研究所報告 |
| 発行日 | 1952-03 |
| 巻 | 6巻 |
| 開始ページ | 34 |
| 終了ページ | 38 |
| ISSN | 0369-7142 |
| 言語 | 日本語 |
| 論文のバージョン | publisher |
| NAID | 120002307833 |
| JaLCDOI | 10.18926/15570 |
|---|---|
| フルテキストURL | Mem_Sch_Eng_OU_2_26.pdf |
| 著者 | Osaki Hirokazu| Kikuchi Susumu| Matsuda Akira| |
| 抄録 | There are a number of methods for measuring the fatigue because the measurement of this in the working hours is useful for analyzing the factors of fatigue and for the utilization of the labor management. In this paper, the fatigue of bus drivers who have experience of various number of years in some bus company is measured by the flicker and these values are analyzed by X(2) test or sign test and its control limit is determined. These are contributed to find a daily variation and to estimate the fatigue capacity, the degree of skill and what factors have influence on points which oversteps the limit line. It was found in this study that the limit line gets lower as the year of experience increases and the flicker values decrease in the forenoon. |
| 出版物タイトル | Memoirs of the School of Engineering, Okayama University |
| 発行日 | 1967-04-01 |
| 巻 | 2巻 |
| 号 | 1号 |
| 開始ページ | 26 |
| 終了ページ | 29 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002307166 |
| JaLCDOI | 10.18926/15566 |
|---|---|
| フルテキストURL | Mem_Sch_Eng_OU_2_12.pdf |
| 著者 | Mizumoto Hisao| |
| 出版物タイトル | Memoirs of the School of Engineering, Okayama University |
| 発行日 | 1967-04-01 |
| 巻 | 2巻 |
| 号 | 1号 |
| 開始ページ | 12 |
| 終了ページ | 19 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002307145 |
| JaLCDOI | 10.18926/15565 |
|---|---|
| タイトル（別表記） | CHROMATOGRAPHIC ANALYSIS OF METALS WITH ORGANIC REAGENTS (2) ANALYTICAL METHOD OF PALADIUM. |
| フルテキストURL | 006_020_024.pdf |
| 著者 | 芦沢 峻| |
| 抄録 | 0.005r of paladium is detectable by the dithizone chromatographic method. Its absorption band is bluish green and situates between the brownish purple hand of nickel and violet band of cobalt. A micro amount of paladium, such as contained in rocks, can be determined by the dithizone chromatographic method. Interfering ions are eliminated by the combination of copper sulfide and nickel dimethylglyoxime methods. Analytical methods of paladium, nickel, cobalt, and copper by paper chromatograph were investigated. |
| 出版物タイトル | 岡山大学温泉研究所報告 |
| 発行日 | 1952-03 |
| 巻 | 6巻 |
| 開始ページ | 20 |
| 終了ページ | 24 |
| ISSN | 0369-7142 |
| 言語 | 日本語 |
| 論文のバージョン | publisher |
| NAID | 120002307184 |
| JaLCDOI | 10.18926/15563 |
|---|---|
| タイトル（別表記） | DIRECT COLORIMETRIC AND DIRECT TITRIMETRIC DETERMINATION OF CALCIUM WITH NEW REAGENT (SUPPLEMENTARY REPORT) |
| フルテキストURL | 006_015_019.pdf |
| 著者 | 芦沢 峻| |
| 抄録 | The author improved the accuracy of the direct colori metric method of calcium determination with azocal-A using an electrophotometer and made an investigation of interfering ions concerning this method. With this improved method calcium content of 0.2-several mgs per liter can be determined using only 5cc. of river water sample with an error of 土10%. Only 2 minutes are enough for a single determination and this method surpassed the ordinary oxalate method in accuracy. |
| 出版物タイトル | 岡山大学温泉研究所報告 |
| 発行日 | 1952-03 |
| 巻 | 6巻 |
| 開始ページ | 15 |
| 終了ページ | 19 |
| ISSN | 0369-7142 |
| 言語 | 日本語 |
| 論文のバージョン | publisher |
| NAID | 120002307466 |
| JaLCDOI | 10.18926/15560 |
|---|---|
| フルテキストURL | Mem_Sch_Eng_OU_1_138.pdf |
| 著者 | Ohta Mutsuo| Hashimoto Fumio| Tanimoto Tadashi| |
| 抄録 | The changes of electrical resistivity of several alloys, that is, Al-10wt % Zn, Al-10wt % Zn-0.01wt % Cd, Al-10wt % Zn-0.01wt % In, Al-10wt % Zn-0.01wt % Sn, Al-3.0wt % Ag, Al-3.0wt % Ag-0.01wt % Cd, Al-3.0wt % Ag-0.01wt % In, Al3.0wt % Ag-0.0lwt % Sn, Al-3.0wt % Cu, Al-3.0wt % Cu-0.0lwt % Cd and Al-3.0wt % Cu-0.01wt % In, during isothermal aging after quenching were measured. The interactions between a vacancy and a cadmium, indium or tin atom in Al-10wt % Zn, Al-3.0wt % Ag and Al-3.0wt % Cu alloys were estimated. Binding energies obtained for Al-Zn, Al-Ag and Al-Cu base ternary alloys agree within experimental accuracy with each other. |
| 出版物タイトル | Memoirs of the School of Engineering, Okayama University |
| 発行日 | 1966-03-31 |
| 巻 | 1巻 |
| 号 | 1号 |
| 開始ページ | 138 |
| 終了ページ | 147 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002307592 |
| JaLCDOI | 10.18926/15557 |
|---|---|
| フルテキストURL | Mem_Sch_Eng_OU_1_120.pdf |
| 著者 | Wada Tsutomu| Sawaragi Yosikazu| Yonezawa Yoo| |
| 抄録 | We attempt to apply the feedback compensation technics of on-off controller to the pneumatic systems. In this paper, we describe the structure and the action of a new developed pneumatic on-off controller with feedback compensation, and the principle of the special pilot valve which is used in the controller as the on-off element. Next, it is shown analytically and experimentally that the dynamic characteristics of the controller are nearly equal to those of the continuous one which has an infinite proportional gain instead of the on-off element, if the time average of its discontinuous output is treated as the output of the controller. |
| 出版物タイトル | Memoirs of the School of Engineering, Okayama University |
| 発行日 | 1966-03-31 |
| 巻 | 1巻 |
| 号 | 1号 |
| 開始ページ | 120 |
| 終了ページ | 129 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002307543 |
| JaLCDOI | 10.18926/15555 |
|---|---|
| フルテキストURL | Mem_Sch_Eng_OU_1_110.pdf |
| 著者 | Takamatsu Takeiciro| Sayama Hayatoshi| Tonoike Takao| |
| 抄録 | The batch chemical reaction is chosen as the process model to be optimized and the rate constants are functions of pressure only, as the reactions are assumed to occur isothermally. The time optimal control problem considered here means to determine the minimum time path from the given initial compositions to desired final compositions by manipulating the process pressure. A gradient method or a steepest-ascent method is applied to determine the control variable program by using the high speed digital computer. Numerical solutions are presented for the following three cases: (1) no constraint on the operating pressure ...... open and matched terminal constraint. (2) constraint on the operating pressure ...... open terminal constraint. (3) constant operating pressure ...... open terminal constraint. |
| 出版物タイトル | Memoirs of the School of Engineering, Okayama University |
| 発行日 | 1966-03-31 |
| 巻 | 1巻 |
| 号 | 1号 |
| 開始ページ | 110 |
| 終了ページ | 115 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002307978 |
| JaLCDOI | 10.18926/15554 |
|---|---|
| フルテキストURL | Mem_Sch_Eng_OU_1_106.pdf |
| 著者 | Kikuchi Susumu| Harano Hiromi| Miyazaki Yoshiyuki| |
| 抄録 | In this experiment the comparison was studied between the muscular and the nervous fatigue and the flicker phenomenal value of the optic nerve. In order to measure the physical fatigue, various methods have been reported by many authers. In this experiment, a quantification of the fatigue was tried though the relation between the amount of mental activity and the FF (flicker frequency), which is useful in physical fatigue measurement with the change in respiration and pulse. In measuring the FF, respiration and pulse caused by physical work, it shows that the these three measured values are somewhat exponential, which might be called the exponential accumlation of fatigue. In mental activity slight relation was also found between fatigue and learning. |
| 出版物タイトル | Memoirs of the School of Engineering, Okayama University |
| 発行日 | 1966-03-31 |
| 巻 | 1巻 |
| 号 | 1号 |
| 開始ページ | 106 |
| 終了ページ | 109 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002307356 |
| JaLCDOI | 10.18926/15553 |
|---|---|
| フルテキストURL | Mem_Sch_Eng_OU_1_98.pdf |
| 著者 | Kikuchi Susumu| Tomiya Nobuaki| |
| 抄録 | Demand and supply of service are complicatedly related with the balance between fixed capital and circulating capital, movement to the left or right side from a break-even point, and other factors. If there is the disproportion between demand and supply of service, the waiting line to take a service will vary, and in some cases, fixed equipment will not be employed effectively. This report presents trial manufacture of the experimental equipment for waiting line problems. |
| 出版物タイトル | Memoirs of the School of Engineering, Okayama University |
| 発行日 | 1966-03-31 |
| 巻 | 1巻 |
| 号 | 1号 |
| 開始ページ | 98 |
| 終了ページ | 105 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002307672 |
| JaLCDOI | 10.18926/15550 |
|---|---|
| フルテキストURL | Mem_Sch_Eng_OU_1_78.pdf |
| 著者 | Himei Toyoji| Inoue Jyunichi| Fukumori Kooichi| |
| 抄録 | The operation, mainly in a steady state, of a half controlled single-phase bridge circuit with a finite inductive load, has been treated analytically. Some operation features of particular bridge circuits are discussed. |
| 出版物タイトル | Memoirs of the School of Engineering, Okayama University |
| 発行日 | 1966-03-31 |
| 巻 | 1巻 |
| 号 | 1号 |
| 開始ページ | 78 |
| 終了ページ | 83 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002307828 |
| JaLCDOI | 10.18926/15543 |
|---|---|
| フルテキストURL | Mem_Sch_Eng_OU_1_44.pdf |
| 著者 | Takeda Akira| Torii Sigeru| |
| 抄録 | Acetylation of γ,γ-dimethyl-α,β-dicarbethoxybutyrolactone in benzene in the presence of sodium hydride was attempted. The structure of the condensation product was assigned to O-acetyl derivative, which was converted into γ,γ-dimethyl-β-carbethoxy-α-carboxybutyrolactone whose structure is also discussed by IR spectrum. |
| 出版物タイトル | Memoirs of the School of Engineering, Okayama University |
| 発行日 | 1966-03-31 |
| 巻 | 1巻 |
| 号 | 1号 |
| 開始ページ | 44 |
| 終了ページ | 46 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002307861 |
| JaLCDOI | 10.18926/15542 |
|---|---|
| フルテキストURL | Mem_Sch_Eng_OU_1_37.pdf |
| 著者 | Takahashi Katsuaki| Tanioka Mamoru| Yoshio Tetsuo| |
| 抄録 | Studies were carried out in order to know in some detail the transport phenomena through the interface in the viscous liquid moving in laminar flow. Experiments were carried out using ca. 88% glycerin solution, one added with an acid, and the other with alkali together with a small amount of phenolphthalein. Acidic glycerin solution was supplied to a long transparent cuvette of rectangular cross section through which the liquid was made to move slowly enough to establish the laminar flow, thin cords of coloured basic solution were introduced in the direction normal to the axis of flow at regular time intervals. The so obtained patterns of bending cords shortening in regular succession were photographed also at regular time intervals. The authors attribute the origin of the changing patterns of the cords to the velocity gradient existing in the acidic solution which accelerates the diffusion by increasing the concentration gradient near the cords as well as the increase of the interfacial area, and also the decrease of the thickness of the cords. Based on these idea a mathematical analysis was carried out and was obtained an equation which gives the change of the concentration distribution of two dimensional cords. Fair agreement was obtained between the results of mathematical analysis and those of experiments. Furthermore, the influence of the thickness of the cords, and that of the velocity gradient as well as of the diffusion coefficient on the concentration at the center of the cords were discussed. |
| 出版物タイトル | Memoirs of the School of Engineering, Okayama University |
| 発行日 | 1966-03-31 |
| 巻 | 1巻 |
| 号 | 1号 |
| 開始ページ | 37 |
| 終了ページ | 43 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002307624 |
| JaLCDOI | 10.18926/15540 |
|---|---|
| フルテキストURL | Mem_Sch_Eng_OU_1_29.pdf |
| 著者 | Takahashi Teruo| |
| 抄録 | In this report, gas absorption by a rotating cylindrical liquid jet, whose water traveling length is short, is considered experimentally. Experiments of absorption are proceeded in pure C0(2) gas and water at 20℃: C0(2) gas is cross-currently contacted with a liquid jet. From experimental results, absorption rate was observed to be large immediately after liquid was spouted from small hole drilled through rotating cylinder. |
| 出版物タイトル | Memoirs of the School of Engineering, Okayama University |
| 発行日 | 1966-03-31 |
| 巻 | 1巻 |
| 号 | 1号 |
| 開始ページ | 29 |
| 終了ページ | 36 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002307556 |
| JaLCDOI | 10.18926/15537 |
|---|---|
| フルテキストURL | Mem_Sch_Eng_OU_1_1.pdf |
| 著者 | Honda Kazuo| Konaga Tetsuro| |
| 抄録 | In the field of mechanical engineering, the need for a simple but effective way of evaluating the fatigue strength and lifetime of structural materials is an important problem with which the design engineers have faced. Accordingly, a cunsiderable amount of investigations have been made in this field. However, the basic nature of fatigue damage and the conditions which lead to the initiation and propagation of fatigue cracks are not sufficiently understood. Nor any satisfactory method of assessing the exact state of fatigue damage has yet been found. X-ray diffraction technique is not a new as the method of experimental study, but has often been adopted for direct and non-destructive observations of change in the local structures of crystalline materials at fundamental research. X-ray technique is one of the most powerful means to investigate the changes of microscopic- structure due to external forces, considering the fatigue phenomena occur on the surface of materials. Accordingly, one of the authors have studied the relations of half-value breadth of X-ray diffraction lines, residual stresses and hardness and number of cycles of fatigue stresses in detail for various sorts of engineering metallic materials. In the results of a number of experiments, it has been found that the variation in half-value breadth showed very regular relation with number of stress cycles, the authors have reported that the lifetime of materials in fatigue could be predicted. Consequently, it needs to investigate whether or not this predicting method is fitted for alloy containg α and β phase, moreover, it is interesting to make clear the fatigue mechanism of such materials which are present two phases having the different yield stress and type of crystal structure. |
| 出版物タイトル | Memoirs of the School of Engineering, Okayama University |
| 発行日 | 1966-03-31 |
| 巻 | 1巻 |
| 号 | 1号 |
| 開始ページ | 1 |
| 終了ページ | 12 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002307488 |
| JaLCDOI | 10.18926/15536 |
|---|---|
| タイトル（別表記） | A STUDY ON THE PHOSPHOR CONTENT IN MISASA SPA |
| フルテキストURL | 006_001_003.pdf |
| 著者 | 梅本 春次| |
| 抄録 | The phosphor contents of well-water,spring-water and soil were measured semiquantitatively. The phosphor content is relatively high in the sampls from the thermal spring district than in that from the surrounding. |
| 出版物タイトル | 岡山大学温泉研究所報告 |
| 発行日 | 1952-03 |
| 巻 | 6巻 |
| 開始ページ | 1 |
| 終了ページ | 3 |
| ISSN | 0369-7142 |
| 言語 | 日本語 |
| 論文のバージョン | publisher |
| NAID | 120002307782 |
| JaLCDOI | 10.18926/15533 |
|---|---|
| タイトル（別表記） | RELATION BETWEEN THE MOTTLED TOOTH, STRUMA AND FLUORINE CONTENT OF DRINKING WATER INVESTIGATION ON BOYS AND GIRLSLIVIING IN YOSIOKA HOT SPRING AND ITS VICINITY,TOTTORI PREFECTURE, JAPAN |
| フルテキストURL | 005_064_075.pdf |
| 著者 | 音田 作衛| |
| 抄録 | In order to stady the relation between the mottled tooth, struma and fluorine content of drinking water, the author investigated the teeth and thyroid glands of school-boys and girls living in Yoshioka Hot Spring and its vicinity, Tottori Plefectue. Yoshioka Hot Spring is a simple thermal with high fluorine content (max. 5mg. per liter). The incidence of the mottled tooth was 51.5 per cent in average. A close relationship was observed between the morbidity of the mottled tooth and high fluorine content of drinking water. But the author noticed also the occurrence of the mottled tooth among the school-children living in the regions where the fluorine content of drinking water proved to be even less than o.1ppm., and the author emphasizes the possibility of the causal factors other tham fluoline. The palpability of thyroid gland was 78.4 per cent in average, but no significant relation was recognized between the struma and fluorine. Between the mottled tooth and struma, no relation was proved as significant, too. |
| 出版物タイトル | 岡山大学温泉研究所報告 |
| 発行日 | 1951-08 |
| 巻 | 5巻 |
| 開始ページ | 64 |
| 終了ページ | 75 |
| ISSN | 0369-7142 |
| 関連URL | http://eprints.lib.okayama-u.ac.jp/15926 |
| 言語 | 日本語 |
| 論文のバージョン | publisher |
| NAID | 120002307214 |
| JaLCDOI | 10.18926/15525 |
|---|---|
| タイトル（別表記） | THE MEMBRANE POTENTlAL OF THE LIVING HUMAN SKIN AND THE MINERALWATERS |
| フルテキストURL | 004_049_053.pdf |
| 著者 | 大島 良雄| |
| 抄録 | The membrane potential difference with the living human skin between the physiological saline and the mineral waters was measured. The hypotonic mineral waters, that have a pH higher than the isoelectric point of human epidermis, showed a positive potential against the physiological saline. The membrane potential difference of these mineral waters against the physiological saline at the same temperature tends to increase by raising the water temperature. The acid waters showed either a positive or a negative potential against the physiological saline. The membrane potential difference between the mineral wates at room temperature and at the temperature raised above it is increased according to their temperature difference, |
| 出版物タイトル | 放射能泉研究所報告 |
| 発行日 | 1951-03 |
| 巻 | 4巻 |
| 開始ページ | 49 |
| 終了ページ | 53 |
| 言語 | 日本語 |
| 論文のバージョン | publisher |
| NAID | 120002307611 |
| JaLCDOI | 10.18926/15524 |
|---|---|
| タイトル（別表記） | A STUDY ON THE INCIDENCE OF STRUMA IN THE CENTRAL DISTRICT OF TOTTORI PREFECTURE, JAPAN |
| フルテキストURL | 004_039_048.pdf |
| 著者 | 音田 作衛| |
| 出版物タイトル | 放射能泉研究所報告 |
| 発行日 | 1951-03 |
| 巻 | 4巻 |
| 開始ページ | 39 |
| 終了ページ | 48 |
| 言語 | 日本語 |
| 論文のバージョン | publisher |
| NAID | 120002307541 |