Transactions of the Institute of Systems, Control and Information Engineers
New Arrival Alert : OFF

You can use this feature after you logged into the site.
Please click the button below.

Log in / Sign up
ONLINE ISSN: 2185-811X
PRINT ISSN: 1342-5668

Transactions of the Institute of Systems, Control and Information Engineers Vol. 8 (1995), No. 12

  • Fuzzzy Portfolio Selection

    pp. 677-684

    Bookmark

    You can use this feature after you logged into the site.
    Please click the button below.

    Log in / Sign Up

    DOI:10.5687/iscie.8.677

    This paper deals with portfolio selection in terms of fuzzy concept. The objective of this fuzzy portfolio selection is to decide the portfolio selection based on vague aspiration level which decision makers have. The vague aspiration level is expressed by a fuzzy number and maximized by Bellman-Zadeh's maximization principle.
    In the model logistic membership functions are employed to overcome the several theoretical defects which trapezoidal membership functions result in.
  • The Characteristics of Japanese Favorite Songs

    pp. 685-691

    Bookmark

    You can use this feature after you logged into the site.
    Please click the button below.

    Log in / Sign Up

    DOI:10.5687/iscie.8.685

    The nature of the Japanese favorite songs becomes to be gradually clear by the recent research works. In the subject of these research works, “Tonality and Tonic (key note)” of the music (T & T) has been attracted a great deal of attention as an important index to determine the character of music. This paper deals with tonal structure recognition method of Japanese favorite songs using information about pitch name and time-duration that appear on musical score (sample data 2, 777 pieces, 274, 737 notes). As a result, the remarkable characters were found. For example, T & T can be recognized with approximately 90 % accuracy by statistical pitch information of the music score. The time-duration dose not play an important role to infer the T & T.
  • A Design Method of Weighting for Optimal Servo System

    pp. 692-700

    Bookmark

    You can use this feature after you logged into the site.
    Please click the button below.

    Log in / Sign Up

    DOI:10.5687/iscie.8.692

    In a previous paper, we proposed a design method, based on the optimal regulator theory for type-1 digital servo systems. The method can cope, with parameter uncertainties and time-continued disturbance to guarantee steady-state robustness of servo systems. However, when this method is applied to actual systems, elements of the weighting matrix have to be repeatedly adjusted in a trial and error fashion, until the given performance-index of the transient process is satisfied. In this paper, we propose, a design algorithm for the weighting matrix, which consists of the following two steps.
    (1) Express quantitatively the qualitative adjusting-knowledge of the designer by using fuzzy sets and estimate roughly the initial value of the weighting matrix with the fuzzy reasoning method.
    (2) Compute precisely the optimal elements in the weighting matrix by using the simplex method.
    By means of these steps, the automation of servo system design is accomplished. Finally, velocity control of a DC motor is taken as an example to show the effectiveness of the method proposed in this paper.
  • Robust Control of Hydraulic Servo Systems Considering Large Plant Perturbation and Input Saturation

    pp. 701-707

    Bookmark

    You can use this feature after you logged into the site.
    Please click the button below.

    Log in / Sign Up

    DOI:10.5687/iscie.8.701

    This paper is concerned with robust controller design for hydraulic positioning systems. Generally, hydraulic positioning systems have problems such as large perturbation and input saturation. First, taking account of the large plant perturbation, we give a design method of feedback controllers via an LMI based H loop shaping method, which reflects the current plant dynamics. Second, in order to cope with input saturation, we propose to adopt feedforward controllers which contain velocity limit function. Furthermore, the validity of the proposed design method is shown by experiments.
  • Vibration Suppression of Robots with Both Flexible Joints and Flexible Arms

    pp. 708-714

    Bookmark

    You can use this feature after you logged into the site.
    Please click the button below.

    Log in / Sign Up

    DOI:10.5687/iscie.8.708

    In recent years, there have been many studies reported concerning control of robots with flexible arms or flexible joints. However, control problems for robots with both flexible arms and flexible joints are rarely addressed. In this paper, we discuss how to model and control one-link robots with a flexible arm and a flexible joint. We show that
    (1) the flexibility in joints can decrease vibration frequency of flexible arm;
    (2) a simple PD feedback of motor angle can control satisfatorily the position of robot arm ;
    (3) PD + strain rate feedback can yield good responses of the arm's positioning and vibration suppression.
    Simulations are conducted to demonstrate these theoretical results.
  • Design of 2-D FIR Fan Filters with Arbitrary Pass-Angles Using Product Approximation

    pp. 715-717

    Bookmark

    You can use this feature after you logged into the site.
    Please click the button below.

    Log in / Sign Up

    DOI:10.5687/iscie.8.715

  • Analysis of the Synapic Plasticity Equation Considering the Dale Rule

    pp. 718-720

    Bookmark

    You can use this feature after you logged into the site.
    Please click the button below.

    Log in / Sign Up

    DOI:10.5687/iscie.8.718

Article Access Ranking

16 May. (Last 30 Days)

  1. Influence of Thermomechanical Treatment on Delayed Fracture Property of Mo-Bearing Medium-Carbon Steel ISIJ International Vol.62(2022), No.2
  2. Interaction Coefficients of Mo, B, Ni, Ti and Nb with Sn in Molten Fe–18mass%Cr Alloy ISIJ International Vol.62(2022), No.3
  3. Fundamentals of Silico-Ferrite of Calcium and Aluminium (SFCA) and SFCA-I Iron Ore Sinter Bonding Phase Formation: Effects of MgO Source on Phase Formation during Heating ISIJ International Vol.62(2022), No.4
  4. Dissolution Kinetics of Synthetic FeCr2O4 in CaO–MgO–Al2O3–SiO2 Slag ISIJ International Vol.62(2022), No.4
  5. Surface Quality Evaluation of Heavy and Medium Plate Using an Analytic Hierarchy Process Based on Defects Online Detection ISIJ International Advance Publication
  6. Influence of Stabilizing Elements on Ductile-Brittle Transition Temperature (DBTT) of 18Cr Ferritic Stainless Steels ISIJ International Vol.62(2022), No.4
  7. Exploration of the Relationship between the Electromagnetic Field and the Hydrodynamic Phenomenon in a Channel Type Induction Heating Tundish Using a Validated Model ISIJ International Vol.62(2022), No.4
  8. Assessment of Blast Furnace Operational Constraints in the Presence of Hydrogen Injection ISIJ International Advance Publication
  9. Phenomenological Understanding about Melting Temperature of Multi-Component Oxides Tetsu-to-Hagané Vol.108(2022), No.4
  10. Numerical Simulation of Charging Biochar Composite Briquette to Blast Furnace ISIJ International Vol.62(2022), No.4

Search Phrase Ranking

16 May. (Last 30 Days)

  1. blast furnace
  2. blast furnace permeability
  3. blast furnace productivity
  4. jet impingement
  5. jet impingement + cooling + runout table
  6. refractory
  7. steel
  8. viscosity of slag fluorine
  9. 1. m. nainar, a. veawab: ind. eng. chem. res., 48(2009), 9299. https://doi.org/10.1021/ie801802a 2. c. h. yu, c. h. huang, c. s. tan: aerosol air qual. res., 12(2012), 745. https://doi.org/10.4209/aaqr.2012.05.0132 3. g. léonard, c. crosset, d. toye, g. heyen: comput. chem. eng., 83(2015), 121. https://doi.org/10.1016/j.compchemeng.2015.05.003 4. e. e. ünveren, b. ö. monkul, ş. sarıoğlan, n. karademir, e. alper: petroleum, 3(2017), 37. https://doi.org/10.1016/j.petlm.2016.11.001 5. m. b. yue, b. sun, y. cao, y. wang, j. wang: chem. eur. j., 14(2008), 3442. https://doi.org/10.1002/chem.200701467 6. w. choi, j. park, c. kim, m. choi: chem. eng. j., 408(2021), 127289. https://doi.org/10.1016/j.cej.2020.127289 7. c. chen, s. t. yang, w. s. ahn, r. ryoo: chem. commun., 24(2009), 3627. https://doi.org/10.1039/b905589d 8. p. zhao, g. zhang, y. xu, y. k. lv, z. yang, h. cheng: energy and fuels, 33(2019), 3357. https://doi.org/10.1021/acs.energyfuels.8b04278 9. k. dong, w. liu, r. zhu: high temp. mater. process, 34(2015), 539. https://doi.org/10.1515/htmp-2014-0076 10. s. wang, s. xu, s. gao, p. xiao, m. jiang, h. zhao, b. huang, l. liu, h. niu, j. wang, d. guo: sci. rep., 11(2021), 1. https://doi.org/10.1038/s41598-021-90532-9 11. q. t. vu, h. yamada, k. yogo: ind. eng. chem. res., 60(2021), 4942. https://doi.org/10.1021/acs.iecr.0c05694 12. m. wang, l. yao, j. wang, z. zhang, w. qiao, d. long, l. ling: appl. energy, 168(2016), 282. https://doi.org/10.1016/j.apenergy.2016.01.085 13. a. heydari-gorji, a. sayari: ind. eng. chem. res., 51(2012), 6887. https://doi.org/10.1021/ie3003446 14. s. a. didas, r. zhu, n. a. brunelli, d. s. sholl, c. w. jones: j. phys. chem. c., 118(2014), 12302. https://doi.org/10.1021/jp5025137 15. q. t. vu, h. yamada, k. yogo: ind. eng. chem. res., 57(2018), 2638. https://doi.org/10.1021/acs.iecr.7b04722 16. q. t. vu, h. yamada, k. yogo: energy & fuels, 33(2019), 3370. https://doi.org/10.1021/acs.energyfuels.8b04307 17. x. zhang, x. zheng, s. zhang, b. zhao, w. wu: ind. eng. chem. res., 51(2012), 15163. https://doi.org/10.1021/ie300180u 18. h. yamada, f. a. chowdhury, j. fujiki, k. yogo: acs sustain. chem. eng., 7(2019), 9574. https://doi.org/10.1021/acssuschemeng.9b01064 19. x. wang, q. guo, t. kong: chem. eng. j., 273(2015), 472. https://doi.org/10.1016/j.cej.2015.03.098 20. f. s. taheri, a. ghaemi, a. maleki: energy and fuels, 33(2019),11465. https://doi.org/10.1021/acs.energyfuels.9b02636 21. a. sayari, y. belmabkhout: j. am. chem. soc., 132(2010), 6312. https://doi.org/10.1021/ja1013773
  10. 10.1016/j.apenergy.2016.01.085