検索結果 8481 件
| JaLCDOI | 10.18926/15670 |
|---|---|
| フルテキストURL | Mem_Sch_Eng_OU_9_2_89.pdf |
| 著者 | Osaki Hirokazu| Kikuchi Susumu| |
| 抄録 | Multiple regression analysis are often used to explain the relation between the dependent variable and the independent variables. In case of that it arises necessity that the important independent variables which are closely correlated with the dependent variable are selected from among all given ones. There are some selection procedures. But these procedures can't be used usefully without using computer. Therefore two selection procedures that is Forward selection procedure and Backward elimination procedure in multiple regression analysis are programmed by Fortran Ⅳ. |
| 出版物タイトル | Memoirs of the School of Engineering, Okayama University |
| 発行日 | 1974-12-25 |
| 巻 | 9巻 |
| 号 | 2号 |
| 開始ページ | 89 |
| 終了ページ | 105 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002307514 |
| JaLCDOI | 10.18926/15667 |
|---|---|
| フルテキストURL | Mem_Sch_Eng_OU_9_2_53.pdf |
| 著者 | Torii, Sigeru| Tanaka, Hideo| Mandai, Tadakatsu| |
| 抄録 | This paper deals with graphical mass spectral data of the twentyfive compounds related to the preparation of methyl dl-jasmonate and its related materials. The fragmentations from the substituted cyclopentanones and norbornane derivatives can serve basic data for both characterization and elucidation of the structures of complex compounds referring to the preparation of principal components of jasmine flower. |
| 出版物タイトル | Memoirs of the School of Engineering, Okayama University |
| 発行日 | 1974-12-25 |
| 巻 | 9巻 |
| 号 | 2号 |
| 開始ページ | 53 |
| 終了ページ | 61 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002307121 |
| JaLCDOI | 10.18926/15666 |
|---|---|
| フルテキストURL | Mem_Sch_Eng_OU_9_2_47.pdf |
| 著者 | Torii Sigeru| Uneyama Kenji| Ishihara Masakazu| |
| 抄録 | This paper describes mass spectral data from synthetic intermediates of linaloyl oxide. The fragmentation of sulfur functional groups including compounds l-8 would provide fruitful evidences for structural assignment of acyclic and alicyclic monoterpenoid precursors. Since, 1,3-dithianyl group in l,2, and 3 can provide a base peak and the elimination of the sulfinyl group from 7 and 8 is considered to occur at the initial stage of the fragmentation. |
| 出版物タイトル | Memoirs of the School of Engineering, Okayama University |
| 発行日 | 1974-12-25 |
| 巻 | 9巻 |
| 号 | 2号 |
| 開始ページ | 47 |
| 終了ページ | 51 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002307176 |
| JaLCDOI | 10.18926/15665 |
|---|---|
| フルテキストURL | Mem_Sch_Eng_OU_9_2_35.pdf |
| 著者 | Nishiwaki Kazuie| Shimamoto Yuzuru| |
| 抄録 | This paper covers the work done in an attempt to reduce exhaust noise level without the decay of brake mean effective pressure of a two-cylinder two-stroke cycle engine, by means of an exhaust manifold having a throttle plate in its junction. The data are shown for various dimensions and configurations of the manifold and the discussion is given on the effect of exhaust throttling on exhaust noise level and engine performance. The principal results obtained by this study are as follows: (1) The lower limit of the throttle area was about onethird of a cross-sectional area of the manifold from the view point of brake mean effective pressure. (2) Within this limit brake mean effective pressure was scarcely influenced by throttling under the condition where a number of pressure oscillation related to the pulsation effect during an interval between discharges was less than 1.7. (3) A reduction in exhaust noise level attained was 8 dB(A) at higher engine speeds. (4) The junction angle of the manifold gave little significance to exhaust noise level and brake mean effective pressure. |
| 出版物タイトル | Memoirs of the School of Engineering, Okayama University |
| 発行日 | 1974-12-25 |
| 巻 | 9巻 |
| 号 | 2号 |
| 開始ページ | 35 |
| 終了ページ | 45 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002307277 |
| JaLCDOI | 10.18926/15657 |
|---|---|
| フルテキストURL | Mem_Sch_Eng_OU_8_1_25.pdf |
| 著者 | Wada Tsutomu| Shimizu Akira| Takagi Minoru| |
| 抄録 | The effects of some geometries peculiar to the wallattachment fluidic devices on the attaching jet flow and the switching mechanism were experimentally made clear. And the propriety of the analytical mOdel, which has been used for the theoretical study of these devices, was investigated. The results can be summarized as follows: 1) The existing analytical model of the attaching jet flow is not applicable to the case of relatively short wall length of vent distance. 2) The attaching jet flow never detaches from a sufficiently long side wall with vent. 3) The switching mechanism of the vent type device is always the opposite wall switching. 4) From the viewpoint of the output characteristics of the device, the vent distance has a lower limit in relation to the vent width. |
| 出版物タイトル | Memoirs of the School of Engineering, Okayama University |
| 発行日 | 1973-07-20 |
| 巻 | 8巻 |
| 号 | 1号 |
| 開始ページ | 25 |
| 終了ページ | 40 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002307550 |
| JaLCDOI | 10.18926/15647 |
|---|---|
| フルテキストURL | Mem_Sch_Eng_OU_7_1_25.pdf |
| 著者 | Sano Hiroya| Tanada Yoshihiro| |
| 抄録 | In the CRT display system of high-speed electromagnetic deflection, the tendency to amplifier saturation should not be neglected. We first show the limitation to the linear characteristics of input-output response and the response time under the saturation condition in this system. We try to improve the frequency-characteristics of the amplifier by making the load resistance constant and the feedback-paths partially positive, and reduce the L/R value of the load circuit by adopting the mutually-coupled yokecoils and the low-current amplifier. As the result, it is suggested that a low-power dissipation and highspeed response electromagnetic deflection system can be constructed. |
| 出版物タイトル | Memoirs of the School of Engineering, Okayama University |
| 発行日 | 1972-06-01 |
| 巻 | 7巻 |
| 号 | 1号 |
| 開始ページ | 25 |
| 終了ページ | 29 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002307218 |
| JaLCDOI | 10.18926/15634 |
|---|---|
| フルテキストURL | Mem_Sch_Eng_OU_6_21.pdf |
| 著者 | Wada Tsutomu| Shimizu Akira| |
| 抄録 | In this report, the effects of splitter position on the attached jet were experimentally investigated for the purpose of discussing the applicability of a usual mathematical model without splitter. As results, the followings were confirmed, (l) For the splitter distance shorter than the critical distance, the pressure in the bubble lowers and the jet radius of curvature shortens. (2) At the ratio L(s)/D=4~5, the switching control flow rate becomes maximum. And bordering this value, the effects of splitter position on the switching are quite conversely. For the splitter distance longer than the above value, the switching control flow rate decreases, as increasing the distance. (3) For the splitter distance of 1.5~2 times critical distance, the switching is almost never affected by the splitter. |
| 出版物タイトル | Memoirs of the School of Engineering, Okayama University |
| 発行日 | 1971-09-01 |
| 巻 | 6巻 |
| 号 | 1号 |
| 開始ページ | 21 |
| 終了ページ | 25 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002307823 |
| 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 | 10.18926/15592 |
|---|---|
| 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 | 10.18926/15580 |
|---|---|
| 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 | 10.18926/15578 |
|---|---|
| フルテキストURL | Mem_Sch_Eng_OU_2_55.pdf |
| 著者 | Takahashi Katsuaki| Yoshio Tetsuo| Miura Yoshinari| Hirai Taketsugu| |
| 抄録 | The method for continuous measurement of the high temperature heat content, developed by W.Oelsen et al. and applied to the glasses by M.Tashiro, was examined and modified in some points. Relations between the temperature and heat contents referred to the standard temperature 25℃, were determined for the some glasses of R(2)O-SiO(2) system, and the specific heats as well as the entropies were calculated. Comparing the results, some views have been obtained relating to the effect of the species and content of alkali ions on the thermodynamic quantities of such glasses. |
| 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 | 55 |
| 終了ページ | 61 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002307355 |
| JaLCDOI | 10.18926/15569 |
|---|---|
| タイトル（別表記） | CONCENTRATION OF RADIOACTIVE ELEMENTS IN THERMAL. WATERS BY ION EXCHANGE RESIN AND ITS APPLICATION ON ANALYSIS. |
| フルテキストURL | 006_025_033.pdf |
| 著者 | 芦沢 峻| |
| 抄録 | The author succeeded to concentrate Radium B, Radium C, Thorium B etc. in thermal waters of Misasa almost completely without carrier using ion exchange resin and sulfonated coal. Ion exchange resin is useful for the determination of Th B in the mineral waters. The condition of ion exchange reaction concerning lead and bismuth was 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 | 25 |
| 終了ページ | 33 |
| ISSN | 0369-7142 |
| 言語 | 日本語 |
| 論文のバージョン | publisher |
| NAID | 120002307922 |
| JaLCDOI | 10.18926/15568 |
|---|---|
| フルテキストURL | Mem_Sch_Eng_OU_2_23.pdf |
| 著者 | Yoshii Tensho| Kikuchi Susumu| |
| 抄録 | The problem of the optimal assignment of facilities to locaticns has been solved by J.W. Gavett and Normann V.Plyter. In their paper the branch and bound technique is used and for this purpose the distance matrix is transformed into the matrix whose diagonal compoents are zero. The purpose of this paper is to avoid such a transformation and the store of the distance matrix into the computer. |
| 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 | 23 |
| 終了ページ | 25 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002307907 |
| JaLCDOI | 10.18926/15561 |
|---|---|
| タイトル（別表記） | CHEMICAL STUDIES ON MISASA HOT SPRING (17) RADIUM B CONTENT AND ITS MEASURING METHOD. |
| フルテキストURL | 006_012_014.pdf |
| 著者 | 芦沢 峻| |
| 抄録 | With a newly devised method of Ra. B determination using Dithizone extraction the author measured the Ra. B contents of Misasa and Sekigane Hot Springs. This method is applicable to the weakly radioactive waters. Radium B content of Misasa Hot Spring rangeS from 3.0 to 7.2×10(-9) Curie units per liter and the distance of its radon soure from the issuing point was estimated to be 3-25土5 minutes. |
| 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 | 12 |
| 終了ページ | 14 |
| ISSN | 0369-7142 |
| 言語 | 日本語 |
| 論文のバージョン | publisher |
| NAID | 120002307330 |
| JaLCDOI | 10.18926/15539 |
|---|---|
| フルテキストURL | Mem_Sch_Eng_OU_1_23.pdf |
| 著者 | Yamada Toshiro| Kitagawa Shigeru| |
| 抄録 | For assessing the qualities of sheet metal for deep-drawing by the tension test, γ value is adopted generally. However, it is difficult and complicated to obtain the precise value of it. In order to obtain the value precisely and easily, the authors have made trialy the devices to measure directly the elongation and the reductions of width and thickness; these devices are transducers to which the electrical resistance strain gauges are applied. By using these devices, precise, continuous, multipoint and quick measurement can be done. It has been clarified by the continuous measurements that γ values are not the same relating to the elongations. It is recommended that one uses γ value obtained at about 25% elongation. |
| 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 | 23 |
| 終了ページ | 28 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002307551 |
| 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 |
| 巻 | 25巻 |
| 号 | 2号 |
| 開始ページ | 123 |
| 終了ページ | 133 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 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 |
| 巻 | 25巻 |
| 号 | 2号 |
| 開始ページ | 115 |
| 終了ページ | 122 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 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 |
| 巻 | 25巻 |
| 号 | 2号 |
| 開始ページ | 95 |
| 終了ページ | 113 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 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 |
| 巻 | 25巻 |
| 号 | 2号 |
| 開始ページ | 81 |
| 終了ページ | 93 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 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 |
| 巻 | 25巻 |
| 号 | 2号 |
| 開始ページ | 69 |
| 終了ページ | 80 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002307747 |