JaLCDOI 10.18926/15528
タイトル(別表記) COLORIMETRIC DETERMINATION OF MAGNESIUM IN NATURAL WATERS
フルテキストURL 005_047_050.pdf
著者 芦沢 峻|
抄録 Using dye reagents of Magneson Series, the author Succeeded to determine minute amount of magnesium in natural waters (0.0001-0.01g periiter) Colorimetrically. And with Complex salts of Cobalt and copper as Substitutive Standard color series a Simple, rapid and exact method Suitable for field work was devised.
出版物タイトル 岡山大学温泉研究所報告
発行日 1951-08
5巻
開始ページ 47
終了ページ 50
ISSN 0369-7142
関連URL http://eprints.lib.okayama-u.ac.jp/15926
言語 Japanese
論文のバージョン publisher
NAID 120002307507
JaLCDOI 10.18926/15527
フルテキストURL 005_044_046.pdf
著者 芦沢 峻|
出版物タイトル 岡山大学温泉研究所報告
発行日 1951-08
5巻
開始ページ 44
終了ページ 46
ISSN 0369-7142
関連URL http://eprints.lib.okayama-u.ac.jp/15926
言語 Japanese
論文のバージョン publisher
NAID 120002307521
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
4巻
開始ページ 49
終了ページ 53
言語 Japanese
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
4巻
開始ページ 39
終了ページ 48
言語 Japanese
論文のバージョン publisher
NAID 120002307541
JaLCDOI 10.18926/15523
タイトル(別表記) STUDIES OF THE RAD10-ACTIVE SPRINGS (XXVIII). EFFECTS OF THE RADIO-ACTIVE THERMAL BATH ON CIRCULATION SYSTEM (1).
フルテキストURL 004_023_039.pdf
著者 小野田 進|
抄録 The author investigated the changes in skin temperature, oral temperature, blood pressure, pulse rate, respiration rate and weight of body before and after a radio-active thermal bath in Misaswa, and compared the results with the corresponding changes after a plain water bath at a same temperature (43℃) with same duration (5min.). A rise in skin temperature after the thermal bath durated longer than after the control plain water bath. Changes in oral temperature did not correspond to the changes in skin temperature and to the suhjective warm feeling. Changes in the pulse pressure showed no significant difference between the radio-active thermal bath and plain water hath. But a more prolonged lowering of the minimal blood pressure was proved after a radio-active thermal bath than after a plain water bath at same temperature with same duration. The response in blood pressure to thermal bath was more marked in winter than in summer. A rise in pulse rate was recognized after all kinds of hot baths, but no difference was proved between them. A slight acceleration of respiration rate and a loss in weight were observed after hot bath at 43℃ for 5 minutes. But these effects were slighter after radio-active thermal bath than after plain water bath at same temperature and same duration.
出版物タイトル 放射能泉研究所報告
発行日 1951-03
4巻
開始ページ 23
終了ページ 39
言語 Japanese
論文のバージョン publisher
NAID 120002307268
JaLCDOI 10.18926/15522
タイトル(別表記) STUDIES OF THE RADIO-ACTIVE SPRINGS (XXV-XXVII)
フルテキストURL 004_013_023.pdf
著者 大島 良雄|
出版物タイトル 放射能泉研究所報告
発行日 1951-03
4巻
開始ページ 13
終了ページ 23
言語 Japanese
論文のバージョン publisher
NAID 120002307917
JaLCDOI 10.18926/15521
タイトル(別表記) CHEMICAL STUDIES ON MISASA HOT SPRING. (9-15)
フルテキストURL 004_001_012.pdf
著者 芦澤 峻|
出版物タイトル 放射能泉研究所報告
発行日 1951-03
4巻
開始ページ 1
終了ページ 12
言語 Japanese
論文のバージョン publisher
NAID 120002307742
JaLCDOI 10.18926/15520
著者 森永 寛|
出版物タイトル 放射能泉研究所報告
発行日 1949-12
2巻
開始ページ 20
終了ページ 30
言語 Japanese
論文のバージョン publisher
NAID 40017532936
JaLCDOI 10.18926/15519
著者 大島 良雄|
出版物タイトル 放射能泉研究所報告
発行日 1949-12
2巻
開始ページ 1
終了ページ 19
言語 Japanese
論文のバージョン publisher
NAID 40017532935
JaLCDOI 10.18926/15517
フルテキストURL Mem_Fac_Eng_OU_25_2_123.pdf
著者 Taniguchi, Takeo| Ohta, Chikashi|
抄録 The aim of this investigation is the proposal of 3D mesh generation method based on the Delaunay triangulation. The method is valid for the finite element modelling of any convex 3D domain into tetrahedra with optimum geometrical configuration. This paper includes the mathematical background of the mesh generation method, its detail, proposal of some efficient tools for faster and more rigorous computations, and some examples of the mesh generation.
出版物タイトル Memoirs of the Faculty of Engineering, Okayama University
発行日 1991-03-28
25巻
2号
開始ページ 123
終了ページ 133
ISSN 0475-0071
言語 English
論文のバージョン publisher
NAID 120002307904
JaLCDOI 10.18926/15516
フルテキストURL Mem_Fac_Eng_OU_25_2_115.pdf
著者 谷口 健男| Irie Hirotsugu|
抄録 Nested dissection method is an elimination method for a set of linear algebraic equations with minimum fillins. Physically it divides a domain into four subdomains, and each subdomain is again divided into four. This procedure is repeated till all nodes are included in some subdomains. Using this characteristic, the authors examine the efficiency of the method on the transputer.
出版物タイトル Memoirs of the Faculty of Engineering, Okayama University
発行日 1991-03-28
25巻
2号
開始ページ 115
終了ページ 122
ISSN 0475-0071
言語 English
論文のバージョン publisher
NAID 120002307316
JaLCDOI 10.18926/15515
フルテキストURL Mem_Fac_Eng_OU_25_2_95.pdf
著者 Totsuji, Hiroo| Ishikura Satoshi| Takayama Norihisa|
抄録 Critical temperatures of two-dimensional microstructures with superconducting proximity effect in the dirty limit are evaluated for various geometrical constructions. As a numerical method, the finite element method is applied. Guidelines in estimating critical temperatures are given for the case where the decay of superconducting order parameter is either sufficiently slow or fast in comparison with the scale length of the structure.
出版物タイトル Memoirs of the Faculty of Engineering, Okayama University
発行日 1991-03-28
25巻
2号
開始ページ 95
終了ページ 113
ISSN 0475-0071
言語 English
論文のバージョン publisher
NAID 120002307413
JaLCDOI 10.18926/15513
フルテキストURL Mem_Fac_Eng_OU_25_2_81.pdf
著者 Totsuji, Hiroo|
抄録 Numerical methods for the analysis of the proximity effect in superconducting microstructures in the dirty limit are formulated on the basis of the finite element method. One- and two-dimensional cases are considered and third order Hermite shape functions are used. The results are also applicable to investigations of electronic states in semiconductor superlattice structures.
出版物タイトル Memoirs of the Faculty of Engineering, Okayama University
発行日 1991-03-28
25巻
2号
開始ページ 81
終了ページ 93
ISSN 0475-0071
言語 English
論文のバージョン publisher
NAID 120002307242
JaLCDOI 10.18926/15512
フルテキストURL Mem_Fac_Eng_OU_25_2_69.pdf
著者 Tsuchiya Takao| 加川 幸雄|
抄録 A finite element approach to the calculation of nonlinear sound propagation is proposed. Under the assumption of a weak nonlinearity, a linearized one-dimensional equation is considered. The equation is discretized in space, and is then solved for time by using Newmark-β integration scheme, in which a numerical damping is devised. Some numerical demonstrations are made for the nonlinear sound propagation of a single-shot pulse in air. It is shown that the shock wave propagation is stably and accurately simulated by the introduction of the numerical damping.
出版物タイトル Memoirs of the Faculty of Engineering, Okayama University
発行日 1991-03-28
25巻
2号
開始ページ 69
終了ページ 80
ISSN 0475-0071
言語 English
論文のバージョン publisher
NAID 120002307747
JaLCDOI 10.18926/15507
フルテキストURL Mem_Fac_Eng_OU_24_2_99.pdf
著者 谷口 健男| Fujiwara Kohji|
抄録 This paper presents an effective solver for a large sparse set of linear algebraic equations, which appears at the application of the finite element and the finite difference methods in engineering field. Proposed method is a family of SKYLINE METHOD, and for faster computation on the vector processors the original skyline is modified with respect to following three items; the use of inner products of matrix operations, the removal of unnecessary numerical operations and the introduction of two-dimensional array for storing the data of coefficient matrix.
出版物タイトル Memoirs of the Faculty of Engineering, Okayama University
発行日 1990-03-29
24巻
2号
開始ページ 99
終了ページ 112
ISSN 0475-0071
言語 English
論文のバージョン publisher
NAID 120002307515
JaLCDOI 10.18926/15506
フルテキストURL Mem_Fac_Eng_OU_25_2_17.pdf
著者 榊原 精| Kanadani, Teruto| Kaneeda, Toshiaki| Hosokawa, Norio|
抄録 Effect of the soft surface layer that was formed on low temperature aging of Al-Zn alloy on fatigue strength was studied under repeated tensile loading. Vickers microhardness test revealed that there existed less hardened region in the vicinity of grain boundary and surface, and that the region extends 50 to 100μm from the surface inward. From the plot of the stress amplitude against the number of cycles to failure, it is concluded that the presence of less hardened surface layer strengthens fatigue resistance of the age hardened Al-Zn alloys containing 8 to 16mass % Zn under the repeated tensile loading.
出版物タイトル Memoirs of the Faculty of Engineering, Okayama University
発行日 1991-03-28
25巻
2号
開始ページ 17
終了ページ 23
ISSN 0475-0071
言語 English
論文のバージョン publisher
NAID 120002307685
JaLCDOI 10.18926/15503
フルテキストURL Mem_Fac_Eng_OU_25_2_9.pdf
著者 Mikuni, Masato| 飛田 守孝| Nishida, Norihide| 榊原 精| 山田 益男|
抄録 Strains induced in the Si substrates by TiN film were observed with X-ray topography. The image of the sample with TiN film 0.45μm thick was like that of a dislocation loop observed with transmission electron microscope. The images of the samples with TiN films 1.65, and 1.9μm thick were different; blackening spreaded in the <112> and <110> direction from the ring contrast in shape of four-lobed rosette pattern. Spreading extended 1.6 times longer than the radius of the ring contrast along the <112> direction. The strain field extended 0.1μm in depth from the top surface where TiN was plated. From the topographs of bent Si beam, it was found that the blackness was almost proportional to the strain. The strains induced by TiN film locally ion-plated were smaller than those observed previously when TiN was ion-plated on the whole top surface of the substrate. Fine structures were observed in the topographs which could not be explained by the kinematical theory.
出版物タイトル Memoirs of the Faculty of Engineering, Okayama University
発行日 1991-03-28
25巻
2号
開始ページ 9
終了ページ 15
ISSN 0475-0071
言語 English
論文のバージョン publisher
NAID 120002307429
JaLCDOI 10.18926/15502
フルテキストURL Mem_Fac_Eng_OU_24_2_79.pdf
著者 佐藤 洋一郎|
抄録 In asynchronous arbiters, failures may happen, caused by metastable operations. The purpose of this study is to derive a formula to estimate such failures in a ring arbiter as mean time between failures (MTBF), under the condition that incidences of requests issued in all devices are different from each other. The operation of the arbiter is formularized by a markov chain. This chain is used to decide the probability at which each of possible failures contributes to MTBF. The sum of such probabilities gives the MTBF which can be represented as a sum of a finite number of terms. As an example, MTBF of a ring arbiter composed of 3 cells is shown.
出版物タイトル Memoirs of the Faculty of Engineering, Okayama University
発行日 1990-03-29
24巻
2号
開始ページ 79
終了ページ 87
ISSN 0475-0071
言語 English
論文のバージョン publisher
NAID 120002307486
JaLCDOI 10.18926/15499
フルテキストURL Mem_Fac_Eng_OU_24_2_49.pdf
著者 森 忠次| Machida Ken-ichi|
抄録 Distance measurements have been more and more easy and accurate to carry out, and it is expected that distance mesurements may provide rather accurate results than angle measurements. Under these circumstances, caracteritics of errors in typical trilateration nets are investigated. The nets investigated are as follows: From single row of chains to pranimetrically extended nets in figure, open and closed networks with respect to external constraint, and with and without as to internal constraint. Computations are performed by use of the method of condition equations, and behaviours of error propagation and errors of coordinates of stations in the nets are shown in case of typical nets. For example, effects for decrease in error by composing a double row of chains and by enforcing external constraints are explained.
出版物タイトル Memoirs of the Faculty of Engineering, Okayama University
発行日 1990-03-29
24巻
2号
開始ページ 49
終了ページ 65
ISSN 0475-0071
言語 English
論文のバージョン publisher
NAID 120002307544
JaLCDOI 10.18926/15497
フルテキストURL Mem_Fac_Eng_OU_24_2_41.pdf
著者 東辻 浩夫|
抄録 A possibility to control the microscopic superconducting channel based on the proximity effect is theoretically shown by a simple one-dimensional analysis of de Gennes' equation for the order parameter.
出版物タイトル Memoirs of the Faculty of Engineering, Okayama University
発行日 1990-03-29
24巻
2号
開始ページ 41
終了ページ 47
ISSN 0475-0071
言語 English
論文のバージョン publisher
NAID 120002307289