A Gain Scheduling of PI Controllers of a Multi Span Web Transport System

Abstract This research aims to address the issue of controlling a multi-span web transport system by an automatic tuning of the PI controllers parameters. The use of multi-span web transport systems often requires dedicating a particular effort for defining a control system able to protect the integrity of the web. The possibility of using PI controllers for each section is attractive considering that an overlapping system decomposition may permit to take into account the mutual interaction of the neighbor sections. In this case, the choice of correct values of the PI parameters becomes crucial for the control performance. Existing fixed gain PI tension control schemes currently used in industrial practice require extensive tuning and do not provide the desired performance for changing operating conditions. This paper describes a simple strategy for automatically selecting the PI parameters of a multi span transport system by using an nonlinear interpolation of the trend of a preliminary calibration. The algorithm is simple and efficient providing fast real-time implementation, since it does not require any data processing. The proposed technique features robustness and simplicity. The implications of this method reside in its applicability in an industrial platform

The angiogenesis and functional recovery effect after spinal cord injury by newly synthesized nucleotide analog, COA-Cl

　2-chloro-carbocyclic oxetanocin A（COA-Cl）はアデノシン類似体合成化合物であり in vitro にて血管新生作用が報告されており，またラットの脳卒中モデルに対する投与で神経保護，血管新生および機能回復効果が示されている．本研究ではこれらの効果が脊髄損傷モデルにおいても発揮されるか否かを評価した．荷重装置により T9レベルの脊髄損傷モデルラットを作製し，損傷直後から COA-Cl を５日間腹腔内投与した COA-Cl 群と，同量の生理食塩水を投与した vehicle群に分けた．脊髄損傷14日後に運動機能を Basso-Beattie-Bresnahan Locomotor Rating Scale スコア（BBB スコア）と傾斜台試験にて，血管新生をラミニンの免疫染色により後索の血管数と血管面積を測定することで評価した．運動機能は BBB スコアと傾斜台試験ともに COA-Cl 群でvehicle 群に比べて有意に改善した．血管新生は COA-Cl 群で血管数および血管面積ともに有意に増加した．これらの結果から，COA-Cl の脊髄損傷後急性期における投与は運動機能改善および血管新生をもたらし，脊髄損傷急性期の新規治療薬としての可能性が示された．　2-chloro-carbocyclic oxetanocin A (COA-Cl), a novel synthesized adenosine analog, has been reported to have a strong angiogenic effect. In our previous study using a rat model of stroke, we showed the neuroprotective, angiogenic and motor recovery effects of COACl. Spinal cord injury (SCI) induces severe motor dysfunction and lowers the quality of life. In our recent study, we demonstrated that acute-phase administration of COA-Cl protects against spinal cord damage and facilitates motor recovery after SCI. In this study, we hypothesized that acute-phase administration of COA-Cl post-SCI also induces early neovascularization and participates in motor function recovery. SCI was induced using a drop device in rats. Rats with SCI were divided into 2 groups: COA-Cl and vehicle groups (n = 5 in each group). COACl was intraperitoneally injected (6 mg/kg in saline) once a day for 5 days immediately after SCI. In the vehicle group, only saline was administered, with the same dosing regimen as that in the COA-Cl group. Fourteen days after SCI, motor function was evaluated based on Basso–Beattie–Bresnahan scoring and the inclined plane test. To evaluate angiogenesis, cryosections of the spinal cord were immunostained with anti-laminin antibody. Motor function significantly improved in the COA-Cl group compared with that in the vehicle group; concomitantly, both the number and volume of blood vessels significantly increased in the COA-Cl group compared with those in the vehicle group. In conclusion, acute-phase administration of COA-Cl results in motor function recovery, which may be attributed to angiogenic effects

2017～2019年度 関西大学研究拠点形成支援経費研究成果報告書

目次・研究成果の概要・2-1　工藤 宏人・宮前 翼・上田 正人・村山 憲弘・林 順一 "ノーリア骨格をテンプレートとした空孔内に水酸基を有する架橋化合物の合成とそれらの金属イオン包接性能" ネットワークポリマー論文集 vol.41, No.2, 65 - 71 (2020).・2-2　Mitsuaki Matsuoka, Kaho Yokoyama, Kohei Okura, Norihiro Murayama, Masato Ueda, Makio Naito " Synthesis of Geopolymers from Mechanically Activated Coal Fly Ash and Improvement of Their Mechanical Properties" Minerals 9, 791- 801 (2019).・2-3　Daisuke Shimoyama, Ryo Sekiya, Hiroto Kudo, Takeharu Haino, "Feet-to-Feet Connected Trisresorcinarenes" Organic Letters 22, 352 - 356 (2019).・2-4　Masato Ueda, Masahiko Ikeda, Shigeo Mori, Kenji Doi, Hisashi Kitagaki, Shuntaro Terauchi "Mechanical Properties of Additively Manufactured Porous Titanium with Sub-Millimetre Structural Units" Materials Transactions Vol.60, No.9, 1792 - 1798 (2019).・2-5　五十井 浩平・白杉 文香・松岡 光昭・林 順一・村山 憲弘 "種々のMg-Fe系複合酸化物を用いた希薄水溶液中のホウ素およびヒ素の除去" 環境資源工学 66, 29 - 35 (2019).・2-6　Toru Maruyama, Mitsuyoshi Tamaki, Keisuke Nakamura, Gou Nakamura "EFFECT OF MOLTEN METAL TEMPERATURE ON MOLD FILLING IN EVAPORATIVE PATTERN CASTING" International Journal of Metalcasting 13, 611–617 (2019).・2-7　Ryuta Saito, Toru Maruyama, Toshiki Nakamura, Hitoshi Yanagitani, Takahiro Sakai, Kouji Nakamoto "Influence of Tellurium Addition to Spheroidal Graphite Cast Iron on the Number of Graphite Particles" International Journal of Metalcasting Vol.13, 3, 571-577 (2018).・2-8　Masato Ueda, Rika Yamaguchi, Chika Fujita, Masahiko Ikeda "Control of Cell Adhesion on Titanium Dioxide by Light Irradiation" Materials Science Forum Vol.941, 2507 - 2512 (2018).・2-9　Hiroto Kudo, Mari Fukunaga, Kohei Shiotsuki, Hiroya Takeda, Hiroki Yamamoto, Takahiro Kozawa, Takeo Watanabe "Synthesis of hyperbranched polyacetals containing C-(4-t-butylbenz)calix[4]resorcinarene: Resist properties for extreme ultraviolet (EUV) lithography" Reactive and Functional Polymers 131, 361 - 367 (2018).・2-10　大隈 修・前 一廣・林 順一 "直接液化による豪州ビクトリア褐炭の高度利用 : 改新BCLプロセスによる化学原料の生産" Journal of the Japan Institute of Energy 98, 17 - 26 (2019).・2-11　Issei Suzuki, Ayako Kakinuma, Masato Ueda, Takahisa Omata "Flux growth of β-NaGaO₂ single crystals" Journal of Crystal Growth 504, 26 -30 (2018).・2-12　上田 正人、坂本 貴則、池田 勝彦 "電気抵抗率の精密測定による純チタンの組織評価" 環境資源工学 65, 74 -76 (2018).・2-13　Satoshi Imasaka, Hiroyasu Ishii, Jun\u27ichi Hayashi, Sadao Araki, Hideki Yamamoto "Synthesis of CHA-type titanosilicate zeolites using titanium oxide as Ti source and evaluation of their physicochemical properties" Microporous and Mesoporous Materials 273, 243-248 (2019).・2-14　Hiroto Kudo, Shizuya Ohori, Hiroya Takeda, Hiroki Ogawa, Takeo Watanbe, Hiroki Yamamoto, Takahiro Kozawa "Synthesis and Property of Tannic Acid Derivatives and Their Application for Extreme Ultraviolet Laser Lithography System" Journal of Photopolymer Science and Technology Vol.31, 221 - 225 (2018).・2-15　Hiroto Kudo, Tsubasa Miyamae, Kouta Kitagawa, Kohei Isoi, Norihiro Murayama, Jun\u27ichi Hayashi " Synthesis and Metal-Complexation Ability of Cross-Linking Materials Containing Noria-Templated Cavities with Pendant Carboxylic Acid Groups" Chemistry Select 3, 2223 - 2228 (2018).・2-16　上田 正人、池田 勝彦、土井 研児、 森 重雄、北垣 壽、寺内 俊太郎、関 あずさ "骨部分置換用ポーラスチタン : ポリグリコール酸 : 炭酸カルシウム複合体の開発" 高分子論文集 Vol.75, No.1, 69 - 74 (2018).・2-17　Alexandru C Sonoc, Jacob Jeswiet, Norihiro Murayama, Junji Shibata "A study of the application of Donnan dialysis to the recycling of lithium ion batteries" Hydrometallurgy 175, 133 - 143 (2018).2-3は、著作権の関係により非公開としております。2-8は、著作権の関係により非公開としております。2-9は、著作権の関係により非公開としております。2-10は、著作権の関係により非公開としております。2-11は、著作権の関係により非公開としております。2-16は、著作権の関係により非公開としております

Performance of a web transport system with tension control subsystem using speed as control input

41st Annual Conference of the IEEE Industrial Electronics Society, IECON 2015, Yokohama, Japan, 9-12 Nov. 2015In this paper, the authors improve the control performance of a multi-span web transport system by introducing a new decentralized control strategy using the overlapping decomposition. The system is composed of eleven guide rollers, four main sections mutually interconnected with each other. The overlapping decomposition requires a derivative action on the controlled variables. All the theoretical aspects will be shown together with the preliminary experimental results demonstrating the improvements of the proposed approach

Performance of a web transport system with tension control subsystem using speed as control input

In this paper, the authors improve the control performance of a multi-span web transport system by introducing a new decentralized control strategy using the overlapping decomposition. The system is composed of eleven guide rollers, four main sections mutually interconnected with each other. The overlapping decomposition requires a derivative action on the controlled variables. All the theoretical aspects will be shown together with the preliminary experimental results demonstrating the improvements of the proposed approach.41st Annual Conference of the IEEE Industrial Electronics Society, IECON 2015, Yokohama, Japan, 9-12 Nov. 201