検索結果 18311 件
| JaLCDOI | 10.18926/15592 |
|---|---|
| フルテキストURL | Mem_Sch_Eng_OU_2_127.pdf |
| 著者 | Misaki Takayoshi| Kato Osamu| Yamamoto Hideki| |
| 抄録 | Described in this paper is a method of automatic washing for salt contaminated insulators. An average value of leakage current through the surface of the pilot insulator in a duration is measured, for this is a function of the quantity of salt adhered and its moisture content. In each cycle, the program signals give one by one the instructions on a start and an end of the integration of leakage current, a detection of the integrated value, a stop of the washing device and a reset of the integrator. The integrator consists of RC circuit and the main detecting part consists of the thyristor whose firing gate voltage is used as a reference value. If the integrator output rises above the firing gate voltage, the pulse signals are made in the signal conversion part at the same time that the thyristor turns on, which are distributed to the pump motor or the electromagnetic valve. Then the insulators on hot-line are washed all together in the appointed duration. Finally, by the various experiments this method was proved to have enough accuracy and reliability in practical use. The conclusions are summarized as follows. (1) An average value of leakage current is justified to be the detecting variable. (2) The RC circuit used as the integrator is proved to be easy in maintenance. (3) Because of the fairly short duration of the detecting action, the integrator is kept in a sufficiently safe condition under expected environment. |
| 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 | 127 |
| 終了ページ | 132 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002307133 |
| JaLCDOI | 10.18926/15591 |
|---|---|
| フルテキストURL | Mem_Sch_Eng_OU_2_120.pdf |
| 著者 | Himei Toyoji| Inoue Jyunichi| |
| 抄録 | This paper is presented on the operation of the phase controlled single-phase bridge circuit with a free-wheeling diode, which has capacitance in parallel with the inductive load. Such circuit configuration is frequently met with, for instance, at the time when the more smoothness of d-c voltage is required, the higher reliability of SCR's firing is taken into account or load windings include some capacitance which is not negligible. The capacitance influences not only largely upon SCR's rush current but also significantly upon control characteristics of the circuit such as wave forms, pulsating ratio and power factor etc. Here, the various effects of the capacitance on the circuit performance are discussed. |
| 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 | 120 |
| 終了ページ | 126 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002307335 |
| JaLCDOI | 10.18926/15590 |
|---|---|
| フルテキストURL | Mem_Sch_Eng_OU_2_111.pdf |
| 著者 | Nakata Takayoshi| Ishihara Yoshiyuki| |
| 抄録 | In this paper, the easy design-method of trasformer tank is described. Using nomographs induced here, the bending moments on the oval tank or round cornered rectangular tank which is used for usual transformer, are briefly calculated. And the relation between the type of transformer and the distribution of bending moment is cleared. Using these results, even electric engineer who has poor knowledge for strength of materials, can easily design a most suitable tank. |
| 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 | 111 |
| 終了ページ | 119 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002307797 |
| JaLCDOI | 10.18926/15589 |
|---|---|
| タイトル（別表記） | MEDICAL STUDIES ON CHONDROITIN SULFATE (1) |
| フルテキストURL | 006_052_061.pdf |
| 著者 | 大島 良雄| |
| 抄録 | Chondroitin sulfate (daily 3g. per os) was administered to fifty cases of painful disorders, such as hemicrania, neuralgia, chronic rheumatoid arthritis, perialthritis, etc. And amelioration was observed in 34 cases (68%). Chondroitin Sulfate promotes the blood clotting time by intravenous injection, but has no influence on blood viscosity. It inhibits the action of cholin esterase slightly in vitro and shows a tendency to increase peripheral circulation by Laewen-Trendelenburgs method. It showed no definite effect on blood pressure in the above-mentioned patients. By Magnus method it was shown that chondroitin sulfate accelerates the motility of the isolated rabbit intestine and suppresses the action of adrenalin. Chondroitin sulfate increases the permeability of tissue, but it shows a slight inhibitory action on testicular byaluronidase. Peroral administration of chondroitin sulfate promotes diuresis, increases the elimination of total sulfate and diminishes the neutral sulfur in the urine. |
| 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 | 52 |
| 終了ページ | 61 |
| ISSN | 0369-7142 |
| 言語 | 日本語 |
| 論文のバージョン | publisher |
| NAID | 40017532411 |
| JaLCDOI | 10.18926/15588 |
|---|---|
| フルテキストURL | Mem_Sch_Eng_OU_2_96.pdf |
| 著者 | Mine Tadao| Yamamoto Tatuma| Baba Yukinobu| Yamamoto Yositake| |
| 抄録 | In the preceding paper a new method of analyzing nonlinear periodic oscillations was proposed. In this article a new conception, which is named as the extended harmonic approximation of nonlinear oscillatory circuits, is presented. Method of obtaining transient solutions by the conception is given and various numerical examples are shown. The new conception has merits that a consistent linearization method is given for both steady state and transient state domains and transient solutions are obtained simply. |
| 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 | 96 |
| 終了ページ | 110 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002307313 |
| JaLCDOI | 10.18926/15587 |
|---|---|
| フルテキストURL | Mem_Sch_Eng_OU_2_93.pdf |
| 著者 | Moriwake Tosio| |
| 抄録 | The Reformatsky reaction with t-butyl haloacetate could be effected in the presence of lithium or aluminum, but the latter metal proved to be disappointing as a condensing agent. Condensation of benzophenone with t-butyl chloroacetate and bromoacetate in the presence of lithium gave corresponding β-hydroxy esters in yields of 43 and 58%, respectively, and comparable with those of other condensing methods. |
| 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 | 93 |
| 終了ページ | 95 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002307573 |
| JaLCDOI | 10.18926/15586 |
|---|---|
| フルテキストURL | Mem_Sch_Eng_OU_2_88.pdf |
| 著者 | Monobe Kazuo| Fujiwara Yasuo| |
| 抄録 | Single crystals of two crystatalline forms, α and γ, in nylon 12 were obtained from dilute solutions. The single crystals of γ-form from diols solutions are ribbon like lamellae in shape, and that of α-form obtained from solution in water-formic acid are parallelogramic. Electron diffraction study shows that chain packings in single crystals of two crystalline forms are very similar to those of nylon 6, 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 | 88 |
| 終了ページ | 92 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002307315 |
| JaLCDOI | 10.18926/15585 |
|---|---|
| フルテキストURL | Mem_Sch_Eng_OU_2_84.pdf |
| 著者 | Monobe Kazuo| Yamashita Yuhiko| |
| 抄録 | The preparative method of giant single crystals of PEO and the experimental results of them by x-ray diffraction and electron microscopy are described. The crystallization of PEO was carried out in a two dimensional crystallization apparatus. From the tridirectional x-ray diffraction patterns on the resulting platelike crystals, it was confirmed that these crystals have a single crystal-like orientation at high supercoolings, the [401] axis is parallel to a growing direction and the [001] axis is perpendicular to the wide surface, and a double orientation at low supercoolings, two axes of [421] and [421] are parallel to a growing direction and the [001] axis is perpendicular to the wide surface. |
| 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 | 84 |
| 終了ページ | 87 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002307197 |
| JaLCDOI | 10.18926/15584 |
|---|---|
| タイトル（別表記） | SENSITIVITY TO HISTAMINE DURING A SERIES OF THERMAL BATHS. |
| フルテキストURL | 006_049_051.pdf |
| 著者 | 大島 良雄| 横田 剛男| |
| 抄録 | Sensitivity of mice to histamine was estimated with the death-rate by its subcutaneous injection. In control group without bath ten mg. of histamine per ten g. of body weight proved to be tolerable, but twenty mg. of histamine per ten g. of body weight was lethal in August. To 24 mice were given everyday a plain water bath at 37℃ for ten minutes. To another 24 mice were given everyday a thermal bath of Misasa at 37℃for ten minutes. On the 4th, 7th, 14th and 21st day to each six mice of both groups was given a subcutaneous injection of histamine, namely to three mice was given ten mg. of histamine per ten g. of bodyweight and to another three mice was given twenty mg. of histamine per ten g. of body weight. In plain water bath group no change in death rate was shown during the series of bath days. But in the thermal bath group a 100% 1ethality was recognized on the 4th day, 67% lethality was proved on the 7th day and only 17% lethality was shown on the 14th day. Histamine or histaminelike substance is known to be a chemical agent liberated in the skin by any skin irritants. And the above-mentioned change in the sensitivity to histamine during a series of thermal baths suggests an explanation to the mechanism of thermal crisis that has a tendency to occur in the first week of thermal bath cure. |
| 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 | 49 |
| 終了ページ | 51 |
| ISSN | 0369-7142 |
| 言語 | 日本語 |
| 論文のバージョン | publisher |
| NAID | 120002307862 |
| JaLCDOI | 10.18926/15582 |
|---|---|
| フルテキストURL | Mem_Sch_Eng_OU_2_74.pdf |
| 著者 | Takeda Akira| Kariya Yosihiro| Torii Sigeru| |
| 抄録 | The ring opening of epoxide group in the reaction of ethyl ,β-alkylglycidates with sodiomalonate was observed mostly at the α-position of the glycidates. Ethyl β-ethylglycidate, however, on treatment with sodiomalonate gave ten percent of β-fission product, elucidated by NMR spectra. The reaction sequence provides a general preparative route to γ-alkylparaconic acids and their derivatives. |
| 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 | 74 |
| 終了ページ | 79 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002307843 |
| JaLCDOI | 10.18926/15581 |
|---|---|
| タイトル（別表記） | SEASONAL DIFFERENCE IN THE EFFECT OF THERMAL BATH ON BLOOD CATALASE. |
| フルテキストURL | 006_046_048.pdf |
| 著者 | 大島 良雄| |
| 抄録 | Blood catalase level in healthy rabbits was measured before and after thermal bath of Misasa in January, May, July and September. And the differences in the effect of thermal bath between the four seasons were investigated. Blood catalase level in rabbits proved to be highest in winter and lowest in September. A slight fall in blood catalase level was recognized an hour after the thermal bath at 42℃ for five minutes. And in September the degree of fall seemed to be slightest and the recovery soonest. |
| 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 | 46 |
| 終了ページ | 48 |
| ISSN | 0369-7142 |
| 言語 | 日本語 |
| 論文のバージョン | publisher |
| NAID | 120002307946 |
| JaLCDOI | 10.18926/15579 |
|---|---|
| フルテキストURL | Mem_Sch_Eng_OU_2_62.pdf |
| 著者 | Hirai Taketsugu| Miura Yoshinari| Yoshio Tetsuo| Takahashi Katsuaki| |
| 抄録 | Decomposition voltages of Na(2)O (30-50 mole % )-SiO(2) binary system were estimated at the temperature range of 700~1200℃ by commutator technique. As the experimental procedure, relations between electrolytic current and resulting polarization potential without ohmic loss were observed by 20 cps mechanical commutator, using Pt|Na(2)O-SiO(2)|Pt electrochemical system. Experimental decomposition voltages determined from above relationship were the value of 1.5~2.0 V at the temperature beyond about 800℃ with comparatively less reproducibility. Further investigations on the decomposition reaction mechanisms were made in reference to both a series of reversible decomposition voltages derived from thermodynamic calculations on the several proposed decomposition reactions and chemical equilibrium in vitreous silicates. |
| 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 | 62 |
| 終了ページ | 67 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002307847 |
| JaLCDOI | 10.18926/15577 |
|---|---|
| フルテキストURL | Mem_Sch_Eng_OU_2_50.pdf |
| 著者 | Takahashi Teruo| Akagi Yasuharu| |
| 抄録 | Recently various trays in which mass transfer operations are carried out have been developed, and the authors have designed one of the rotational-current tray which is designed to direct flow of ascending gas horizontally across the tray surface. In this report, as a fundamental study for mass transfer on this tray, flow mechanism and liquid holdup on the tray are considered experimentally. Experiments are carried out by water-air, methanol-water air and gricerinewater-air systems. |
| 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 | 50 |
| 終了ページ | 54 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002307498 |
| JaLCDOI | 10.18926/15576 |
|---|---|
| タイトル（別表記） | A REPORT ON THE DEGREE OF SATURATION OF SPRING SOURCES IN TOTTORI HOT SPRING. |
| フルテキストURL | 006_039_045.pdf |
| 著者 | 御船 政明| |
| 抄録 | Tottori Hot Spring belongs to a muriated sulfated spring with twenty seven spring sources in 1949. But since 1949 about ten new springs are permitted to bore by the Prefectural Council on Hot Springs. And so the total amount of flow or the capacity of Tottori Hot Spring became a matter of concern among the citizens of Tottori. By the relationship between the chloride and sulfate or chloride and bicarbonate content of spring waters, it was concluded that all thermal springs of Tottori City derive from a same thermal source. As Tottori Hot Spring did issue out without aid of a pump in former days and nowadays does not, it seemed possible that a gradual fall of thermal water level took place and was golng On. ln most of Tottori Hot Springs a moter of one horse power was enough to pump up the thermal waters. But it occured that in one of the newly bored spring a pump With a three horse power motor was found being in use without permission of the Council. So the author took the chance of investigating the influence of the pumping of the new spring on the temperature, amount of flow, and chemical composition of waters of the surrounding springs. And he found that pumping up with three horse power motor could lower the water level and change the Chemical composition of some of the sorrounding springs and warned the Council of the danger of an abuse of permission to bore springs. |
| 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 | 39 |
| 終了ページ | 45 |
| ISSN | 0369-7142 |
| 言語 | 日本語 |
| 論文のバージョン | publisher |
| NAID | 120002307696 |
| JaLCDOI | 10.18926/15575 |
|---|---|
| フルテキストURL | Mem_Sch_Eng_OU_2_43.pdf |
| 著者 | Takahashi Teruo| Fujita Kozo| |
| 抄録 | In this report, the analogies of the maximum allowable liquid and gas velocities in various countercurrent gas-liquid contactors of column type are considered analytically. That is, by plotting the flooding points of various columns in a gas-liquid separated coordinates, the similar curves have been obtained in each column. Because the difference of these curves is due to the shape of each column, the difference of each shape must be corrected and evaluated as a ahape factor. Then, by containing this factor in coordinate variables, various flooding points in each column may be correlated by a single curve. If this correlation curve is used, the flooding velocity can be estimated easily, and the maximum allowable liquid and gas velocities in these countercurrent contactors of column type can be compared. |
| 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 | 43 |
| 終了ページ | 49 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002307818 |
| 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 | 10.18926/15573 |
|---|---|
| フルテキストURL | Mem_Sch_Eng_OU_2_35.pdf |
| 著者 | Wada Tsutomu| Ohgishi Shinji| |
| 抄録 | An analysis is attempted of the human operator's responses to the sinusoidal input and the random input. The human operator's characteristics in the closed loop system are represented by the Bode diagram. This diagram shows that the human operator's response to the random input containing only those frequency components lower than 4 rad/s is almost in accordance with his response to the siunsoidal input of the same frequency range. |
| 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 | 35 |
| 終了ページ | 38 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002307455 |
| 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 | 10.18926/15571 |
|---|---|
| フルテキストURL | Mem_Sch_Eng_OU_2_30.pdf |
| 著者 | Sayama Hayatoshi| Oi ko| |
| 抄録 | The optimum temperature in a sequence of two stirred tanks is considered subject to inequality constraints. For an illustrative example this nonlinear programming problem is solved using the SUMT method of Fiacco and McCormick, which transforms the constrained problem into a sequence of unconstrained minimization problems. The results are presented for several cases, and are fairly good. |
| 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 | 30 |
| 終了ページ | 34 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002307563 |
| 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 |