巻号一覧
26 巻 (1993)
- 6 号 p. 607-
- 5 号 p. 459-
- 4 号 p. 347-
- 3 号 p. 237-
- 2 号 p. 123-
- 1 号 p. 1-
26 巻, 4 号
選択された号の論文の21件中1～21を表示しています
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Original Papers
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Jeong Jun Song, Sunwon Park1993 年 26 巻 4 号 p. 347-354
発行日: 1993年
公開日: 2005/03/31
ジャーナル フリーA neural model predictive control strategy combining a neural network for plant identification and a nonlinear programming algorithm for solving nonlinear control problems is proposed. A constrained nonlinear optimization approach using successive quadratic programming combined with a neural identification network is used to generate the optimum control law for complex continuous chemical reactor systems that have inherent nonlinear dynamics. The neural model predictive controller (NMPC) shows good performance and robustness.抄録全体を表示PDF形式でダウンロード (1109K) -
Kenji Kotoh, Mikio Enoeda, Tetsuya Matsui, Masabumi Nishikawa1993 年 26 巻 4 号 p. 355-360
発行日: 1993年
公開日: 2005/03/31
ジャーナル フリーAdsorption of water vapor on activated alumina was examined by a gravimetric method. The experimental results are described by a Freundlich-type polynomial with respect to the adsorption potential. In order to characterize the adsorption, a multilayer of water is assumed here on the alumina surface. Considering the hydrogen-bonding, several types of formation are modeled on structural hydroxyl groups supposed as the surface sites. In the modeling, two kinds of rules are observed in the relationship between the accumulating layers; structural ratios of molecules and allotment ratios of the potentials. In accordance with these rules, an attempt is made to derive an expression for the multilayer adsorption in a model by applying a Freundlich-type equation to the surface monolayer adsorption. The derivation gives a polynomial similar to the empirical expression. It is found from comparison of the parameters of both equations that the model multilayer is consistent in the examined adsorption system.抄録全体を表示PDF形式でダウンロード (4677K) -
Ting-Chia Huang, Dong-Hwang Chen, Shius-Dong Huang, Ching-Tsven Huang, ...1993 年 26 巻 4 号 p. 361-367
発行日: 1993年
公開日: 2005/03/31
ジャーナル フリーThe extraction kinetics of uranium(VI) from aqueous nitrate solution with polyether-based polyurethane foam was investigated in a batch reactor with automatic squeezing. The extraction curves of uranium(VI) concentration in solution vs. extraction time exhibited a rather rapid exponential decay within the first few minutes, followed by a slower exponential decay during the remaining period. This phenomenon can be attributed to the presence of two-phase structure, hard segment domains and soft segment matrix in the polyurethane foam. A two-stage rate model expressed by a superposition of two exponential curves was proposed, according to which the experimental data were fitted by an optimization method. The extraction rate of uranium(VI) was also found to increase with increasing temperature, nitrate concentration, and hydration of the cation of nitrate salt.抄録全体を表示PDF形式でダウンロード (1019K) -
Jea-Keun Lee, Ki-Ho Lee, Jeong-Gook Jang, Hai-Soo Chun1993 年 26 巻 4 号 p. 368-373
発行日: 1993年
公開日: 2005/03/31
ジャーナル フリーSewage sludge combustion experiments are carried out to investigate the effect of operating parameters on SO2 capture and limestone utilization in a two-stage swirl-flow fluidized-bed combustor. Operating parameters investigated in the study are the Ca/S molar ratio, superficial gas velocity, bed temperature, air-fuel ratio, and particle size of limestone.
The experimental results show that the increase of the Ca/S molar ratio results in the increase of SO2 capture, whereas it causes the decrease of the limestone utilization. The SO2 capture tends to increase with the superficial gas velocity and total air-fuel ratio, but has a maximum value at a temperature of about 800°C. It is also noted that a smaller limestone size significantly enhances the SO2 capture and the limestone utilization.抄録全体を表示PDF形式でダウンロード (877K) -
Maw-Ling Wang, Yu-Ming Hsieh1993 年 26 巻 4 号 p. 374-381
発行日: 1993年
公開日: 2005/03/31
ジャーナル フリーThe dynamics of the alkylation of 2,4,6-tribromophenol in an alkaline solution of KOH/chlorobenzene solvent by phase transfer catalysis was simulated using the two-film theory, taking account of mass transfer and distribution of catalysts between the two phases as well as the intrinsic reaction kinetics in both the organic and aqueous phases. Independent experiments were designed to obtain the distribution coefficients and the overall mass transfer coefficients of the catalysts between the two phases. The organic-phase intrinsic reaction-rate constant was obtained by carrying out the half-organic phase reaction. Without adding benzyl bromide, a reaction was also conducted to obtain the aqueous-phase intrinsic reaction-rate constant. Comparing the results obtained from experiments, the aqueous-phase reaction rate is essentially instantaneous relative to the organic-phase reaction rate. The resistance of mass transfer of catalyst between two phases is negligible. The reaction rate in the organic phase is a rate-determining step for the two-phase reaction. The results obtained from the model’s prediction are closely consistent with the experimental data obtained from the phase-transfer catalytic reactions.抄録全体を表示PDF形式でダウンロード (1148K) -
Takahiro Mamyoda, Koichi Asano1993 年 26 巻 4 号 p. 382-388
発行日: 1993年
公開日: 2005/03/31
ジャーナル フリーNumerical analyses of the drag coefficients and the heat and diffusion fluxes of a cylinder with and without diffusive surface mass suction or injection were made by the finite difference method for Reynolds numbers ranging from 10 to100, Prandtl or Schmidt numbers from 0.5 to 2.0 and surface mass suction or injection ratios from –0.2 to 0.1. The drag coefficient, heat and diffusion fluxes for the case without surface mass suction or injection were compared with the results of previous workers and showed good agreement. The effect of diffusive surface mass suction or injection on drag coefficient, heat and diffusion fluxes of a cylinder were examined. New correlations of the effect of diffusive surface mass suction or injection on heat and diffusion fluxes in terms of transfer numbers were proposed.抄録全体を表示PDF形式でダウンロード (858K) -
J. I. Lombraña , M. C. VillaránShort Communications
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Hiroshi Kuriyama, Hiroki Ishibashi, Itaru Umeda, Toshio Murakami, Haru ...1993 年 26 巻 4 号 p. 429-431
発行日: 1993年
公開日: 2005/03/31
ジャーナル フリーPDF形式でダウンロード (453K) -
Soong-Hyuck Suh, Seung-Baik Rho, Soon-Chul Kim1993 年 26 巻 4 号 p. 431-435
発行日: 1993年
公開日: 2005/03/31
ジャーナル フリーPDF形式でダウンロード (567K) -
Kiyohiko Nakasaki, Takehiro Ui, Yukihiro Takamura, Takuya Mori1993 年 26 巻 4 号 p. 435-436
発行日: 1993年
公開日: 2005/03/31
ジャーナル フリーPDF形式でダウンロード (2083K) -
Masaru Ishida, Ruchira Taprap1993 年 26 巻 4 号 p. 437-439
発行日: 1993年
公開日: 2005/03/31
ジャーナル フリーPDF形式でダウンロード (1657K) -
Tawatchai Charinpanitkul, Atsushi Tsutsumi, Kunio Yoshida1993 年 26 巻 4 号 p. 440-442
発行日: 1993年
公開日: 2005/03/31
ジャーナル フリーPDF形式でダウンロード (381K) -
Shigendo Akita, Hiroshi Takeuchi1993 年 26 巻 4 号 p. 442-444
発行日: 1993年
公開日: 2005/03/31
ジャーナル フリーPDF形式でダウンロード (374K) -
R. K. Saha, P. Sengupta1993 年 26 巻 4 号 p. 444-448
発行日: 1993年
公開日: 2005/03/31
ジャーナル フリーPDF形式でダウンロード (680K) -
Kazuaki Yamagiwa, Yukari Shimizu, Taro Kozawa, Masayuki Onodera, Akira ...1993 年 26 巻 4 号 p. 449-450
発行日: 1993年
公開日: 2005/03/31
ジャーナル フリーPDF形式でダウンロード (273K) -
Hiroyasu Seko, Eiichi Murata, Takeshi Fujinaga1993 年 26 巻 4 号 p. 451-454
発行日: 1993年
公開日: 2005/03/31
ジャーナル フリーPDF形式でダウンロード (502K)
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