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Author Osakada, Yamato|
Published Date 1979-06-30
Publication Title 岡山医学会雑誌
Volume volume91
Issue issue5-6
Content Type Journal Article
Author Moriyasu, Fumiaki|
Published Date 1983-08-31
Publication Title 岡山医学会雑誌
Volume volume95
Issue issue7-8
Content Type Journal Article
Author Himoto, Yusuke|
Published Date 1985-12-30
Publication Title 岡山医学会雑誌
Volume volume97
Issue issue11-12
Content Type Journal Article
Author Joja, Ikuo| Hiraki, Yoshio| Ueda, Hiroyuki| Nakamura, Tetsuya| Yamamoto, Yoshio| Kaji, Mitumasa| Togami, Izumi| Niiya, Harutaka| Shirakami, Toshiaki| Hayashi, Hidehiro| Kimoto, Shin| Aono, Kaname| Sugita, Katsuhiko| Ueoka, Hiroshi| Ohnoshi, Taisuke| Kimura, Ikuro|
Published Date 1985-10-30
Publication Title 岡山医学会雑誌
Volume volume97
Issue issue9-10
Content Type Journal Article
Author Fujiwara, Takashi|
Published Date 1987-12-30
Publication Title 岡山医学会雑誌
Volume volume99
Issue issue11-12
Content Type Journal Article
Author Ejiri, Togo|
Published Date 1988
Publication Title 岡山医学会雑誌
Volume volume100
Issue issue7-8
Content Type Journal Article
Author Yamamoto, Yoshio| Hiraki, Yoshio| Kaji, Mitumasa| Hayashi, Hidehiro| Noriyasu, Toshiaki| Inoue, Nobuhiro| Mitani, Masahiro| Fujishima, Mamoru| Joja, Ikuo| Hashimmoto, Keiji| Kimoto, Shin| Aono, Kaname|
Published Date 1988
Publication Title 岡山医学会雑誌
Volume volume100
Issue issue7-8
Content Type Journal Article
JaLCDOI 10.18926/15791
FullText URL Mem_Sch_Eng_OU_16_1_31.pdf
Author Kaneda Masahiro| Akahori Ichiro|
Abstract System data handling in CAD sY8tem for designing control systems is discussed. A man-oriented data description method for a wide sense block diagram and its automatical transformation into the state space description is proposed. This work is a part of CAD system: CADPACS-T which has been under development for designing control systems in our laboratory. The proposal data description for a wide sense block diagram has the following features: 1) to correspond nicety to the block diagram and to be suitable for a man-oriented expression, 2) to express even a large scale system compactly by partitioning into some subsystems defined externally, 3) to be easy to add /or alter the input-output terminals, parameters or elements, and 4) to need not to assign the connection relationship explicitly owing to adopting the input-output terminal/line names. Moreover, system data handling in designing the PI controller for an actual boiler system expressed in a block diagram is taken up as an example.
Publication Title Memoirs of the School of Engineering, Okayama University
Published Date 1982-03-01
Volume volume16
Issue issue1
Start Page 31
End Page 45
ISSN 0475-0071
language English
File Version publisher
NAID 120002308002
JaLCDOI 10.18926/15780
FullText URL Mem_Sch_Eng_OU_15_2_119.pdf
Author Kaneda Masahiro| Akahori Ichiro| Egusa Masanori| Kuraoka Hiroaki|
Abstract A high speed and high accuracy simulator whose data-handling is light and whose weak stability is assured even for stiff systems is discussed. This work is a part of CAD package : CADPACS-T which has been under development for the purpose of designing control systems utilizing TSS of a large scale digital computer in our laboratory. This simulator realizes high accuracy, high computational speed and high reliability adopting A-stable extrapolation methods to transform into a difference system, a recursive formula of an output interval to solve the difference equation, automatic choice of an optimal step length such that minimizes an predicted error, and evaluating error bounds closely near the actual errors in the point of numerical calculation. Moreover, in the point of data management, this realizes separation of program modules from data, common utilization of data and separation of investigation from simulation.
Publication Title Memoirs of the School of Engineering, Okayama University
Published Date 1981-03-30
Volume volume15
Issue issue2
Start Page 119
End Page 132
ISSN 0475-0071
language English
File Version publisher
NAID 120002307465
JaLCDOI 10.18926/15712
FullText URL Mem_Sch_Eng_OU_13_119.pdf
Author Ohta, Mutsuo| Yamada, Masuo| Kanadani, Teruto| Sakakibara, Akira|
Abstract The effects of the fluctuation of solute concentration on the process of aging in Al-10wt % Zn alloy were studied by measurements of the intensity of small-angle X-ray scattering and by electron microscopy. Specimen was quenched from a higher temperature(T(Ql), mainly 300℃) to an intermediate temperature (T(Q2), 110~230℃), held there for a time, quenched again into iced water and aged isothermally at 0℃ or 40℃. Results obtained are as follows: (1) When the specimen was held at T(Q2) for a sufficient time and aged at relatively high temperatue(e.g. Ihr at 125℃ and aged at 40℃), a two-step increasing of both resistivity and integrated intensity was found. (2) Each of the steps has characteristics of the formation of G.P. zones by the spinodal decomposition. (3) When the maximum resistivity(p(max)) takes a minimum, Size distribution of the G.P. zones, estimated from the difference between Guinier and Porod radii, is much broader than that at p(max) in the usual direct quenching. (4) When the holding time at T(Q2) is long enough, the size distribution at p(max) is as broad as that at p(max) in the usual case. (5) After a prolonged aging under the condition that P(max) takes minimum, G.P. zones grow markedly and become oblate ellipsoidal with a major axis of about 20nm. (6) These results are consistently understood in terms of the fluctuation of solute concentration at T(Q2) and the change in the concentration of vacancies during annealing at T(Q2). That is, it is considered that these results are due to the difference in aging behavior between the regions of relatively high concentration and the ones of low concentration induced by the fluctuation.
Publication Title Memoirs of the School of Engineering, Okayama University
Published Date 1979-03-05
Volume volume13
Start Page 119
End Page 132
ISSN 0475-0071
language English
File Version publisher
NAID 120002307931
JaLCDOI 10.18926/15644
FullText URL Mem_Sch_Eng_OU_7_1_1.pdf
Author Osaki Hirokazu| Kikuchi Susumu|
Abstract This paper deals with the empirical formula to explain the work amount curve of a worker during a work. The empirical formula yt = at(b) + c was used to explain this phenomenon until now. This formula has been used mainly to approximate to the monotonous trend of the work amount curve. But it was made clear that if the work amount curve showed the polynomial trend, it could not be done so. Then the authors attempt to establish the empirical formula yt = a/{exp(Σb(i)t(i))-l} + c, which was the general form of the logistic curve in order to explain not only the monotonous trend but also the polynomial trend of the work amount curve. And it was made clear from the results of the approximation that this formula was the one of the most usuful formula in order to explain the work amount curve.
Publication Title Memoirs of the School of Engineering, Okayama University
Published Date 1972-07-10
Volume volume7
Issue issue1
Start Page 1
End Page 9
ISSN 0475-0071
language English
File Version publisher
NAID 120002307630
JaLCDOI 10.18926/15204
Title Alternative Characteristic of GAFCHROMIC XR TYPE T dosimetry film
FullText URL 014_1_023_029.pdf
Author Kubotsu, Mariko| Nakagiri, Yoshitada| Ujifuku, Ayako| Taniguchi, Yukiko| Hachiya, Miho| Azuma, Yoshiharu| Goto, Sachiko| Maruyama, Toshinori| Aoyama, Hideki| Tahara, Seiji| Inamura, Keiji| Watanabe, Toshimitsu| Sugita, Katsuhiko|
Abstract 医療の高度化に伴い,近年では長時間のⅩ線透視を行うInterventional Radiology(IVR)手技が頻繁に行われ,副作用としての難治性放射線皮膚障害例の報告が増加している。確定的影響である放射線皮膚障害はしきい値を超えると発症し,線量に依存して障害の程度が重篤となるため,患者被曝線量の測定が重要である。しかし,IVRでは照射部位が多彩で,焦点-皮膚間距離が不安定なため,その測定方法は確立されていない。本研究では,近年IVR等低エネルギー線量測定用フイルムとして開発されたCAFCHROMIC XR TYPE T について性能評価を行い,患者皮膚入射面の被曝線量測定への応用の可能性について検討した。その結果,線量特性,線質特性,ネット値の安定性に良好な特性を示し,臨床に使用可能であったので報告する。
Keywords 患者被爆線量 (Patient Exposure dose) GAFCHROMIC XR TYPE T Radiochromic film Interventional Radiology (IVR) 測定精度 (Radiation dosimetry)
Publication Title 岡山大学医学部保健学科紀要
Published Date 2003-12-25
Volume volume14
Issue issue1
Start Page 23
End Page 29
ISSN 1345-0948
language Japanese
File Version publisher
NAID 120002307331
Author Fujikawa, Tatsuya| Shiraha, Hidenori| Yamamoto, Kazuhide|
Published Date 2009-04-01
Publication Title 岡山医学会雑誌
Volume volume121
Issue issue1
Content Type Journal Article
JaLCDOI 10.18926/14771
Title Alternative 食道痛細胞におけるWntのベータカテ二ンTCF経路の活性化の検討
FullText URL 73_075_080.pdf
Author Mizushima, Takaaki| Ochi, Koji| Emori, Yasuyuki| Tanioka, Hiroaki| Sawa, Kiminari| Fujioka, Shinichi| Shinji, Toshiyuki| Koide, Norio| Tanizaki, Yoshiro|
Abstract Although, accumulation of nuclear and cytoplasmic beta-catenin has been observed in ESCCs, mutation of APC and beta-catenin are not found in ESCCs. Therefore, another mechanism for cytoplasmic beta- catenin accumulation might exist in ESCCs. Materials and Methods: Human ESCCs cell lines and the 293 stable transfectants expressing Wnt-1, Wnt-5A, and Wnt-7A were cultured under standard conditions. The TOPFlash or FOPFlash reporter plasmids were transfected. Results: Transfected mutant beta-catenin as well as an axin fragment harbing the GSK3 beta interaction domain, the latter a potent GSK3 beta inhibitor. both robustly activated pTOPFlash in ESCCs cells. When pTOPFlash/pFOPFlash reporters were transfected in ESCCs cell lines followed by cocultivation with 293 cells that stably express Wnt -1, all cell lines except one demonstrated TCF mediated transcriptional. But, cells were co- cultured, Wnt - 7A or Wnt - 5A did not activate TCF mediated transcription in a cell number dependent fashion. Discussion; We report the activation of TCF promoter gene by extemal Wnt stimuli in ESCCs cells.
Keywords esophageal carcinoma Wnt TCF beta-catenin
Publication Title 岡大三朝医療センター研究報告
Published Date 2003-02-01
Volume volume73
Start Page 75
End Page 80
ISSN 1348-1258
language English
File Version publisher
NAID 120002308224
Author Okino, Takeshi|
Published Date 1990-02
Publication Title 岡山医学会雑誌
Volume volume102
Issue issue1-2
Content Type Journal Article
Author Noriyasu, Toshiaki|
Published Date 1990-02
Publication Title 岡山医学会雑誌
Volume volume102
Issue issue1-2
Content Type Journal Article
Author Matsumi, Masaki|
Published Date 1991
Publication Title 岡山医学会雑誌
Volume volume103
Issue issue5-6
Content Type Journal Article
Author Taguchi, Toyohiro|
Published Date 1990-02
Publication Title 岡山医学会雑誌
Volume volume102
Issue issue1-2
Content Type Journal Article
Author Takada, Sho|
Published Date 1991
Publication Title 岡山医学会雑誌
Volume volume103
Issue issue4
Content Type Journal Article