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JaLCDOI 10.18926/15598
フルテキストURL Mem_Sch_Eng_OU_3_13.pdf
著者 Hirose Koji| Asano Yoshihiro|
抄録 The friction coefficient of sectionally rough pipes has not been studied yet. The friction coefficient for turbulent flow through sectionally roughened square ducts is experimentally studied. Four arrangements of rough surfaces are used to obtain the sectionally roughened square ducts. It is attempted to predict the friction coefficient for sectionally roughened square ducts from the friction coefficients for alloverly roughened and smooth square ducts.
出版物タイトル Memoirs of the School of Engineering, Okayama University
発行日 1968-09-01
巻 3巻
号 1号
開始ページ 13
終了ページ 16
ISSN 0475-0071
言語 英語
論文のバージョン publisher
NAID 120002307548
JaLCDOI 10.18926/15597
タイトル(別表記) STUDIES ON VITRIOL SPRINGS (9) EFFECT OF THE INTERNAL USE OF VITRIOL WATERS ON THE IODATE CONSUMPTION OF BLOOD.
フルテキストURL 008_013_017.pdf
著者 外園 正純|
抄録 Oshima proved that blood catalase level tends to decrease after the internal use of the vitriol waters of Yanahara and Fujino and explained his data by the promotion of oxidative process in the body by the waters. Consumption of iodate by proteinfree serum filtrate is an index of total reductive substances in serum. After the internal use of these two mineral waters, this index increased temporarily, but there was no significant difference between the effects of the two mineral waters and of plain water. In anaemic patients this index tends to decrease after successive daily intake of Yanahara vitriol water in accordance with the recovery of anaemia.
出版物タイトル 岡山大学温泉研究所報告
発行日 1952-11
巻 8巻
開始ページ 13
終了ページ 17
ISSN 0369-7142
関連URL http://eprints.lib.okayama-u.ac.jp/15355
言語 日本語
論文のバージョン publisher
NAID 40017532508
JaLCDOI 10.18926/15596
フルテキストURL Mem_Sch_Eng_OU_3_1.pdf
著者 Honda Kazuo| Konaga Tetsuro|
抄録 Broadly speaking, there are three kinds of approaches to investigate the deformation and fracture of materials, that is, the microscopic (metallurgical), macroscopic(mechanical) and theoretical (mathematical) researches. It is necessary, however, to bridge the gap which persists among of them. Many investigations on the form of plastically deformed zone at a crack tip, the distribution of plastic strain in plastic zone and fracture criterion have been made for the purpose to clarify the mechanism on initiation and propagation of cracks. In this paper, the authors report the studies, from the standpoint of microscopic views, on the crystal deformation at the tip of crac's in notched specimen during fatigue process.
出版物タイトル Memoirs of the School of Engineering, Okayama University
発行日 1968-09-01
巻 3巻
号 1号
開始ページ 1
終了ページ 11
ISSN 0475-0071
言語 英語
論文のバージョン publisher
NAID 120002307236
JaLCDOI 10.18926/15595
タイトル(別表記) BALNEOLOGICAL STUDIES USING RADIOACTIVE ISOTTPES (2) INFLUENCE OF THE PHYSICOCHEMICAL PROPERTIES OF BATH WATER UPON THE TRANSITION OF SULFATE ION INTO THE BODY ACROSS THE SKIN.
フルテキストURL 008_008_012.pdf
著者 横田 剛男|
抄録 Using Na(2)SO(4) labeled with S(85) transition of sulfate ion into the body across the skin was investigated soon after the bath in sodium sulfate solution(one gram per liter) at varying conditions. Mice were used as test animal. Percutaneous absorption of sulfate ion was promoted at indifferent bath temperature (37℃) than at lower bath temperature (25℃), became less by the addition of sodium chloride (one gram per liter) to the bath water, proved stronger at lower pH (2.0) than at higher pH (7.0 or 9.0). One of the characteristic types of mineral waters in Japan is "acid spring". And many of the Japanese acid springs contain free sulfuric acid in considerable quantity.It is known that their bath cure often causes dermatitis, socalled "Yutadare". Misawa and Oshima had proved that the level of immune bodies in blood is increased by the bath cure with dermatitis in acid springs of "KUSATSU". And the author's experiment seems to give a new significance to the ro1e of sulfate ion in the action of acid spring bath in Japan.
出版物タイトル 岡山大学温泉研究所報告
発行日 1952-11
巻 8巻
開始ページ 8
終了ページ 12
ISSN 0369-7142
関連URL http://eprints.lib.okayama-u.ac.jp/15355
言語 日本語
論文のバージョン publisher
NAID 120002307410
JaLCDOI 10.18926/15594
タイトル(別表記) STUDIES ON SERUM MUCOPROTEIN (1) SERUM MUCOPROTEIN LEVEL IN NORMAL AND PATHOLOGICAL STATES OF JAPANESE.
フルテキストURL 008_001_007.pdf
著者 大島 良雄| 上田 良雄|
抄録 Serum mucoprotein level in 16 normnls and 3CO cases of diseased was investignted by Winzler' s method. Using biuret rengent normal range of serum mucoprotein proved to be 94-120mg per cent. Higher mucoprotein content was often recognized in rheumatoid arthritis, cancer, pneumonia, and hepatitis. High mucoprotein level in cancer or ulcer patients was decrensed after their resection. A positive linear correlation wns shown between erythrocytes sedimentation rate and mucoprotein level in serum. But no close relation was observed between serum mucoprotein and Takata reaction, Wassermann reaction or total protein content in serum.
出版物タイトル 岡山大学温泉研究所報告
発行日 1952-11
巻 8巻
開始ページ 1
終了ページ 7
ISSN 0369-7142
関連URL http://eprints.lib.okayama-u.ac.jp/15355
言語 日本語
論文のバージョン publisher
NAID 40017532505
JaLCDOI 10.18926/15593
フルテキストURL Mem_Sch_Eng_OU_2_133.pdf
著者 Misaki Takayoshi| Okamoto Takuji|
抄録 This paper describes a method of hybrid computation for the problems including the function x(n). And the greater part of it is devoted to the considerations of the linkages between the analog and the digital for the function x(n). Here the function x(n) appears frequently in the form of x(2) or x(4) in the industrial problems. As is well known the function x(2) is the characteristic included in fluid-flow problems, and x(4) is in heat-radiation problems. The weak points of analog computation for these characteristics are in accuracy and stability, but can be compensated by making use of digital computer for these parts. In the industrial uses the exclusive digital computer is more convenient than the general-purpose one. Here the relative error of analog computation, the linkages, the number of the digital elements and their relationships are considered at the same time and as the results the reasonable method of hybrid computation is obtained. That is, the exclusive digital multiplier with a compressor and an expandor is found reasonable. Its design considerations are described in details, but it is the basic idea among others that the characteristics of the compressor and the expandor are determined so that the relative error of the signal appearing at the output of the latter may be constant and as the results the necessary and sufficient number of the digital elements may be decreased. And in practice these characteristics are also realized approximately by a group of the straight lines through the origin. Finally the reduced rate of the digital elements and the optimum condition of the approximation are illustrated together with an example.
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 133
終了ページ 137
ISSN 0475-0071
言語 英語
論文のバージョン publisher
NAID 120002307842
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 10.18926/15583
フルテキストURL Mem_Sch_Eng_OU_2_80.pdf
著者 Takeda Akira| Wada Satosi| Uno Takaaki|
抄録 The condensation of ethyl chloroarylpyruvate (Ⅰ) with ethyl malonate in the presence of sodium ethoxide afforded γ-aryl-α,β-dicarbethoxy-⊿(β),γ-butenolide. On the basis of the chemical and spectral evidences, the structure of the product (II) has been elucidated. This reaction provides new routes to α,β-dicarboalkoxy-γ-butyrolactones and/or to γ-ketocarboxylic acids.
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 80
終了ページ 83
ISSN 0475-0071
言語 英語
論文のバージョン publisher
NAID 120002307243
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 10.18926/15580
フルテキストURL Mem_Sch_Eng_OU_2_68.pdf
著者 Takeda Akira| Nagae Hiroyuki| Torii Sigeru|
抄録 The reaction of ethyl γ,γ-dialkylparaconate with aromatic aldehydes, i.e., benzaldehyde, anisaldehyde, p-chlorobenzaldehyde, and piperonal, has been investigated. The condensation took place at the α-position of the lactone ring. As the acidic components, α-benzylideneparaconic acids and α-benzylidene-β-alkylidensuccinic acids were obtained in 25-48% and 7-15% yields, respectively. From the neutral portions small amount of ethyl benzylideneparaconates were separated. During the course of distillation ethyl α-benzylideneparaconate was partially converted into α-benzylidene-γ-methy-γ-ethylbutyrolactone.
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 68
終了ページ 73
ISSN 0475-0071
言語 英語
論文のバージョン publisher
NAID 120002307999
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