144,590 research outputs found
Kawai Hayao y el Círculo Eranos
No full textPonencia presentada en el I Congreso Internacional, X Nacional de la Asociación de Estudios Japoneses en España, Universidad de Valladolid.Recientemente la figura de Kawai Hayao (1928-2007), prestigioso psiquiatra japonés de la escuela junguiana a la vez que uno de los representantes culturales del Japón del cambio de siglo, está siendo reivindicada en Japón, de lo cual es muestra el volumen homenaje aparecido en 2009 bajo el título de Shisōka: Kawai Hayao, publicado por la editorial Iwanami bajo la coordinación de Nakazawa Shin’ichi (1950) y el hijo de Hayao, Kawai Toshio (1957). La carrera académica de Kawai se centra entre 1972-1992, en que ejerció como Decano de la Facultad de Educación en su Universidad de origen. Podemos argumentar que igual que los artistas y artesanos japoneses han mostrado su “pensamiento” a través de sus obras, idea ya presente en H. Nakamura (1912-1999), como interpreta Sh. Nakazawa (1950), el pensamiento de Kawai no se puede expresar de manera lógica según categorías lingüísticas, sino que siendo su objeto el material de nuestro inconsciente, se expresa de manera meta-lingüística y meta-racional, asumiendo las contradicciones del yo, tal como expone en Buddhism and the Art of Psychotherapy. Todo ello tiene que ver con la estética de la cerámica Muromachi, Rikyū y Oribe. El objeto elude el acabamiento, la perfección. La figura de Hiruko introduce la importancia de lo espúreo, lo inútil, lo inarticulado, el fracaso como parte de la estructura de la mente. Ello es porque el inconsciente es inclusivo, frente a la estructura consciente que es selectiva y segregacionista. De este modo Kawai se nos dibuja como un pensador genuino, pero según el modelo del artista o artesano, experto en el arte del pensar, o lo que es lo mismo en pensar como un arte
Visualizing the Marrow of Science
No full textThis study proposes a new methodology that allows for
the generation of scientograms of major scientific domains,
constructed on the basis of cocitation of Institute
of Scientific Information categories, and pruned using
PathfinderNetwork, with a layout determined by algorithms
of the spring-embedder type (Kamada–Kawai),
then corroborated structurally by factor analysis. We
present the complete scientogram of the world for the
Year 2002. It integrates the natural sciences, the social
sciences, and arts and humanities. Its basic structure
and the essential relationships therein are revealed,
allowing us to simultaneously analyze the macrostructure,
microstructure, and marrow of worldwide scientific
output
Holographic dual of the Eguchi-Kawai mechanism
No full textarchiveprefix: arXiv primaryclass: hep-th reportnumber: NORDITA-2014-40, UUITP-03-14, QMUL-PH-14-08 slaccitation: %%CITATION = ARXIV:1404.0225;%%archiveprefix: arXiv primaryclass: hep-th reportnumber: NORDITA-2014-40, UUITP-03-14, QMUL-PH-14-08 slaccitation: %%CITATION = ARXIV:1404.0225;%%archiveprefix: arXiv primaryclass: hep-th reportnumber: NORDITA-2014-40, UUITP-03-14, QMUL-PH-14-08 slaccitation: %%CITATION = ARXIV:1404.0225;%%The work of K.Z. was supported by
the ERC advanced grant No 341222, by the Marie Curie network GATIS of the European
Union’s FP7 Programme under REA Grant Agreement No 317089, and by the Swedish
Research Council (VR) grant 2013-4329. DY acknowledges NORDITA where this work
was begun, during his time as a NORDITA fellow
Special Issue on Ethics, Law, and Psychology towards Responsible Robotics for the Society
No full textRobot technology has been expanding from closed spaces such as factories to open spaces such as homes and
streets. Cleaning robots have already been introduced in many houses, and many robots for social communication with humans have been developed. Furthermore, it is envisioned that many automated vehicles will drive around cities in the near future. The spread of these robots and artificial intelligence technologies will drastically change our society and is expected to bring unprecedented affluence and well-being to people’s lives.
However, there is also a concern that new social problems that have never been considered, so-called ELSI
(Ethical, Legal, and Social Issues), will occur as robots begin to autonomously work close to humans. To address
them, transdisciplinary debate from technological, ethical, legal, social, and scientific perspectives is required. It
is now time for not only philosophers, jurists, and policy makers but also scientists and engineers to consider
social implications of developing robot technology and to be responsible for the global community.
This special issue aims to explore problems in social implementation of advanced robots and discuss how to solve or manage them from diverse research areas to develop truly acceptable robots
Mitología y motivo en Kawai Hayao. Análisis de la figura de la megami Izanami
No full text[ES] Izanami.no.Mikoto es uno de los artífices de la creación de Japón, representa en sí misma las dimensiones de la Gran Madre y al mismo tiempo el lado oscuro de la naturaleza. Sin embargo, a pesar de ser una deidad de tanta importancia en su narración mitológica por la grandeza y el peso de sus actos, rara vez ha sido venerada o apreciada de manera amplia por el pueblo japonés, en comparación, por ejemplo, a su hija Amaterasu.
En este sentido, el poco interés mostrado en la veneración a Izanami por parte del pueblo japonés la trasladó a una posición secundaria en el panteón sintoísta al menos hasta la irrupción de la Restauración Meiji en la segunda mitad del siglo XIX. Es a partir de entonces, con la búsqueda de un uso nacionalista del sintoísmo, que Izanami adquiere nuevo protagonismo y se convierte junto a Izanagi en los padres de la nación japonesa, pues ambos parecen poseer un origen autóctono en comparación a las deidades que les suceden, y que responden a la llegada de la influencia china.
Es palpable, por tanto, que la figura de la megami「女神」Izanami o bien no ha gozado del interés público al haber sido relegada al Yomi「黄泉」, o bien ha sido utilizada para la justificación religiosa de la ideología política nacionalista (y más tarde imperialista) que trató de llevar a cabo el gobierno del Emperador Meiji. Por ello, hasta la fecha no se ha realizado una imagen completa y coherente de la deidad tal y como la entiende el imaginario colectivo japonés, tan sólo interpretaciones parciales basadas los relatos del Kojiki y el Nihongi.
En este sentido, el método analítico a través del uso de motivos que el psicólogo Kawai Hayao utiliza para interpretar a las heroínas de los cuentos populares de Japón en The Japanese Psyche: Major Motifs in the Fairy Tales of Japan 1982), es idóneo para ser extendido a los relatos mitológicos. Kawai señala que el inconsciente colectivo definido por Jung manifiesta características propias de cada cultura, que se identifican en los cuentos como motivos, patrones o arquetipos. Por ello, y dado que la mitología, al igual que los cuentos, tiene una naturaleza universal, y que ambos tipos de narración poseen elementos en común, es factible la aplicación de la metodología utilizada por Kawai a esas deidades femeninas del ámbito religioso japonés. Por ello, esta tesis plantea como problema de partida la aplicación directa del método de Kawai al estudio de un personaje específicamente mitológico, como Izanami.no.Mikoto.
El objetivo principal de la tesis radica en la realización de un estudio lo más completo y multidimensional posible de la figura de Izanami.no.Mikoto, tratando de rellenar los vacíos dejados por las interpretaciones parciales que sólo han tenido en cuenta, de manera particular, dos fuentes clásicas: el Kojiki y el Nihongi.
Por otra parte, se plantea la aplicación y adaptación del método de análisis de Kawai Hayao a través de la teoría de los motivos como herramienta para la comprensión de Izanami. De esta forma, el segundo objetivo pretende corroborar la idoneidad de este método analítico para el estudio de un personaje mitológico, no sólo de Izanami en concreto, sino la posibilidad de que sea extensible a deidades no sólo femeninas, sino también masculinas, o que no pertenezcan al ámbito japonés.
Por último, la consecución del análisis extensivo de Izanami junto a la deconstrucción de la imagen de la megami en motivos y submotivos, pretende concluir una interpretación amplia, estructurada y sistemática que permita no sólo entender al personaje en todas sus dimensiones y matices, sino ayudar a establecer puntos en común con otras deidades tanto japonesas como de otras tradiciones mitológicas, e incluso con otros personajes del folclore popular
Modeling and analysis of biodegradation of xenobiotic polymers based on experimental results
No full textAn endogenous depolymerization model based on uniform weight distribution is introduced. The time dependent model with temporal dependent degradation rate is reduced to a time independent model. The previously developed techniques were applied to an inverse problem to determine the degradation rate. The transition of weight distribution was simulated by solving an initial value problem. Those techniques are applied to degradation processes of polylactic acid. They are applicable to other polymers subject to endogenous depolymerization processes.
References F. Kawai, Sphingomonads involved in the biodegradation of xenobiotic polymers, Journal of Industrial Microbiology and Biotechnology 23 (1999), 400--407. F. Kawai, M. Shibata, S. Yokoyama, S. Maeda, K. Tada, and S. Hayashi, Biodegradability of Scott--Gelead photodegradable polyethylene and polyethylene wax by microorganisms, Macromolecular Symposia 144 (1999), 73--84. F. Kawai, M. Watanabe, M. Shibata, S. Yokoyama, and Y. Sudate, Experimental analysis and numerical simulation for biodegradability of polyethylene, Polymer Degradation and Stability 76 (2002), 129--135. doi:10.1016/S0141-3910(02)00006-X F. Kawai, M. Watanabe, M. Shibata, S. Yokoyama, Y. Sudate, and S. Hayashi, Comparative Study on Biodegradability of Polyethylene Wax by Bacteria and Fungi, Polymer Degradation and Stability 86 (2004), 105--114. doi:10.1016/j.polymdegradstab.2004.03.015 J. D. Lambert, Computational Methods in Ordinary Differential Equations (John Wiley and Sons, Chichester, 1973). G. Madras and B. J. McCoy, Numerical and similarity solutions for reversible population balance equations with size-dependent rates, Journal of Colloid and Interface Science 246 (2002) 356--365. doi:10.1006/jcis.2001.8073 S. Matsumura, N. Tomizawa, A. Toki, K. Nishikawa and K. Toshima, Novel Poly(vinyl alcohol)-degrading enzyme and the degradation mechanism, Macromolecules 32 (1999), 7753--7761. B. J. McCoy and G. Madras, Evolution to similarity solutions for fragmentation and aggregation, Journal of Colloid and Interface Science 201 (1998) 200--209. doi:10.1006/jcis.1998.5434 B. J. McCoy, Distribution Kinetics for Temperature-Programmed Pyrolysis, Industrial and Engineering Chemistry Research 38 (1999) 4531--4537. B. J. McCoy and G. Madras, Discrete and continuous models for polymerization and depolymerization, Chemical Engineering Science 56 (2001) 2831--2836. doi:10.1016/S0009-2509(00)00516-9 J. E. J. Staggs, A continuous model for vaporization of linear polymers by random scission and recombination, Fire Safety Journal 40 (2005) 610--627. doi:10.1016/j.firesaf.2005.05.004 M. Watanabe and F. Kawai, Numerical simulation for enzymatic degradation of poly (vinyl alcohol), Polymer Degradation and Stability 81 (2003), 393--399. doi:10.1016/S0141-3910(03)00122-8 M. Watanabe and F. Kawai, Analysis of polymeric biodegradability based on experimental results and numerical simulation, Environmental Research and Control (in Japanese) 25 (2003), 25--32. M. Watanabe, F. Kawai, M. Shibata, S. Yokoyama, and Y. Sudate, Computational method for analysis of polyethylene biodegradation, Journal of Computational and Applied Mathematics 161 (2003), 133--144. doi:10.1016/S0377-0427(03)00551-X M. Watanabe, F. Kawai, M. Shibata, S. Yokoyama, Y. Sudate, and S. Hayashi, Analytical and computational techniques for exogenous depolymerization of xenobiotic polymers, Mathematical Biosciences 192 (2004) 19--37. doi:10.1016/j.mbs.2004.06.006 M. Watanabe and F. Kawai, Numerical simulation of microbial depolymerization process of exogenous type, R. May and A. J. Roberts (Eds.) Proc. of 12th Computational Techniques and Applications Conference, CTAC-2004, ANZIAM Journal, 46(E), pp. C1188--C1204, 2005. http://anziamj.austms.org.au/V46/CTAC2004/Wata M. Watanabe and F. Kawai, Mathematical modelling and computational analysis of enzymatic degradation of xenobiotic polymers, Applied Mathematical Modelling 30 (2006) 1497--1514. M. Watanabe, F. Kawai, S. Tsuboi, S Nakatsu, and H. Ohara, Study on enzymatic hydrolysis of polylactic acid by endogenous depolymerizaion model, Macromolecular Theory and Simulations 16 (2007) 619--626. doi:10.1002/mats.200700015 M. Watanabe and F. Kawai, Mathematical study of the biodegradation of xenobiotic polymers with experimental data introduced into analysis, Proceedings of the 7th Biennial Engineering Mathematics and Applications Conference, EMAC-2005, Melbourne, Editors: Andrew Stacey and Bill Blyth and John Shepherd and A. J. Roberts, ANZIAM J. 47 pp. C665--C681, 2007. http://anziamj.austms.org.au/V47EMAC2005/Watanab
Effects of microbial population in degradation process of xenobiotic polymers
No full textMicrobial depolymerization processes of exogenous type are studied for biodegradation of polyethylene glycol. The time factor of a degradation rate is the microbial population which grows on degraded monomer units as the carbon source. Numerical simulation shows that our model is of practical use.
References F. Kawai, M. Watanabe, M. Shibata, S. Yokoyama, and Y. Sudate. Experimental analysis and numerical simulation for biodegradability of polyethylene. Polymer Degradation and Stability, 76:129--135, 2002. doi:10.1016/S0141-3910(02)00006-X F. Kawai, M. Watanabe, M. Shibata, S. Yokoyama, Y. Sudate, and S. Hayashi. Comparative study on biodegradability of polyethylene wax by bacteria and fungi. Polymer Degradation and Stability, 86:105--114, 2004. doi:10.1016/j.polymdegradstab.2004.03.015 Fusako Kawai and Shogo Enokibara. Symbiotic degradation of polyethylene glycol (peg) 20,000-phthalate polyester by phthalate ester- and peg 20,000-utilizing bacteria. Journal of Fermentation and Bioengineering, 82(6):575--579, 1996. M. Watanabe and F. Kawai. Numerical simulation of microbial depolymerization process of exogenous type. ANZIAM J., 46(E):C1188--C1204, 2005. Proc. of 12th Computational Techniques and Applications Conference, CTAC-2004, Melbourne, Australia in September 2004, Editors: Rob May and A. J. Roberts http://anziamj.austms.org.au/ojs/index.php/ANZIAMJ/article/view/1014 M. Watanabe and F. Kawai. Mathematical study of the biodegradation of xenobiotic polymers with experimental data introduced into analysis. ANZIAM J., 47:C665--C681, 2007. Proceedings of the 7th Biennial Engineering Mathematics and Applications Conference, EMAC-2005, Melbourne, Editors: Andrew Stacey and Bill Blyth and John Shepherd and A. J. Roberts, http://anziamj.austms.org.au/ojs/index.php/ANZIAMJ/article/view/1069 M. Watanabe and F. Kawai. Mathematical analysis of microbial depolymerization processes of xenobiotic polymers. In Geoffry N. Mercer and A. J. Roberts, editors, Proceedings of the 14th Biennial Computational Techniques and Application Conference, CTAC2008, volume 50 of ANZIAM J., pages C930--C946, 2009. http://anziamj.austma.org.au/ojs/index.php/ANZIAMJ/article/view/1465 M. Watanabe and F. Kawai. Modeling and simulation of biodegradation of xenobiotic polymers based on experimental results. In BIOSIGNALS 2009, Second International Conference on Bio-inspired Systems and Signal Processing, Proceedings, Porto, Portugal, 14--17 January, 2009, pages 25--34. INSTICC Press, 2009. M. Watanabe and F. Kawai. Study on effects of microorganism in depolymerization process of xenobiotic polymers by modeling and simulation. In Ana Fred, Joaquim Filipe, and Hugo Gamboa, editors, Proceedings of the First International Conference on Bioinformatics, Valencia, Spain, January 20--23, 2010, pages 181--186. 2010 INSTICC, Institute for Systems and Technologies of Information, Control and Communication, 2010. M. Watanabe, F. Kawai, M. Shibata, S. Yokoyama, and Y. Sudate. Computational method for analysis of polyethylene biodegradation. Journal of Computational and Applied Mathematics, 161(1):133--144, December 2003. doi:10.1016/S0377-0427(03)0051-X M. Watanabe, F. Kawai, M. Shibata, S. Yokoyama, Y. Sudate, and S. Hayashi. Analytical and computational techniques for exogenous depolymerization of xenobiotic polymers. Mathematical Biosciences, 192:19--37, 2004. doi:10.1016/j.mbs.2004.06.00
Mathematical analysis of microbial depolymerization processes of xenobiotic polymers
No full textBiodegradation of polyethylene glycol is studied mathematically. A mathematical model for depolymerization process of exogenous type is described, and numerical techniques based on the model are illustrated. A comparison between a numerical result and an experimental result shows that the mathematical method is appropriate for practical applications.
References F. Kawai, M. Watanabe, M. Shibata, S. Yokoyama, and Y. Sudate, Experimental analysis and numerical simulation for biodegradability of polyethylene, Polymer Degradation and Stability 76 (2002) 129--135. doi:10.1016/S0141-3910(02)00006-X M. Watanabe, F. Kawai, M. Shibata, S. Yokoyama, and Y. Sudate, Computational method for analysis of polyethylene biodegradation, Journal of Computational and Applied Mathematics, Volume 161, Issue 1, 1 December 2003, 133--144. doi:10.1016/S0377-0427(03)0051-X F. Kawai, Biodegradability and chemical structure of polyethers, Kobunshi Ronbunshu, 50(10), 775--780 (1993) (in Japanese). F. Kawai, Breakdown of plastics and polymers by microorganisms, Advances in Biochemical Engineering/Biotechnology, Vol. 52, 151--194 (1995). F. Kawai, Microbial degradation of polyethers, Applied Microbiology and Biotechnology (2002) 58:30--38. doi:10.1007/s00253-001-0850-2 F. Kawai, M. Watanabe, M. Shibata, S. Yokoyama, Y. Sudate, and S. Hayashi, Comparative study on biodegradability of polyethylene wax by bacteria and fungi, Polymer Degradation and Stability 86 (2004), 105--114. doi:10.1016/j.polymdegradstab.2004.03.015 J. D. Murray, Mathematical Biology, Springer--Verlag, 1989. M. Watanabe, F. Kawai, Masaru Shibata, Shigeo Yokoyama, Yasuhiro Sudate, and Shizue Hayashi, Analytical and computational techniques for exogenous depolymerization of xenobiotic polymers, Mathematical Biosciences 192 (2004) 19--37. doi:10.1016/j.mbs.2004.06.006 M. Watanabe and F. Kawai, Analysis of biodegradability for polyethylene glycol via numerical simulation, Environmental Research and Control 26 (2004), 17--22 (in Japanese). F. Kawai, Xenobiotic polymers, in: T. Imanaka, ed., Great Development of Microorganisms, (NTS. Inc., Tokyo, 2002) 865--870 (in Japanese). M. Watanabe and F. Kawai, Numerical simulation of microbial depolymerization process of exogenous type, Proc. of 12th Computational Techniques and Applications Conference, CTAC-2004, Melbourne, Australia in September 2004, Editors: Rob May and A. J. Roberts, ANZIAM J. 46(E) pp.C1188--C1204, 2005. http://anziamj.austms.org.au/V46/CTAC2004/Wata M. Watanabe and F. Kawai, Mathematical study of the biodegradation of xenobiotic polymers with experimental data introduced into analysis, Proceedings of the 7th Biennial Engineering Mathematics and Applications Conference, EMAC-2005, Melbourne, Editors: Andrew Stacey and Bill Blyth and John Shepherd and A. J. Roberts, ANZIAM J. 47 pp.C665--C681, 2007. http://anziamj.austms.org.au/V47EMAC2005/Watanabe M. Watanabe and F. Kawai, Numerical study of biodegradation of xenobiotic polymers based on exogenous depolymerization model with time dependent degradation rate, Journal of the Faculty of Environmental Science and Technology, Okayama University, Vol. 12, No. 1, pp.1--6, March 2007. M. Watanabe and F. Kawai, Modeling and simulation of biodegradation of xenobiotic polymers based on experimental results, BIOSIGNALS 2009, Second International Conference on Bio-inspired Systems and Signal Processing, Proceedings, Porto, Portugal, 14--17 January, 2009, 25--34, 2009. G. Madras and B. J. McCoy, Numerical and similarity solutions for reversible population balance equations with size-dependent rates, Journal of Colloid and Interface Science 246 (2002) 356--365. doi:10.1006/jcis.2001.8073 B. J. McCoy and G. Madras, Evolution to similarity solutions for fragmentation and aggregation, Journal of Colloid and Interface Science 201 (1998) 200--209. doi:10.1006/jcis.1998.5434 B. J. McCoy, Distribution Kinetics for Temperature-Programmed Pyrolysis, Industrial and Engineering Chemistry Research 38 (1999) 4531--4537. B. J. McCoy and G. Madras, Discrete and continuous models for polymerization and depolymerization, Chemical Engineering Science 56 (2001) 2831--2836. doi:10.1016/S0009-2509(00)00516-9 J. E. J. Staggs, A continuous model for vaporization of linear polymers by random scission and recombination, Fire Safety Journal 40 (2005) 610--627. doi:10.1016/j.firesaf.2005.05.004 M. Watanabe and F. Kawai, Numerical simulation for enzymatic degradation of poly(vinyl alcohol), Polymer Degradation and Stability 81 (2003), 393--399. doi:10.1016/S0141-3910(03)00122-8 M. Watanabe and F. Kawai, Mathematical modelling and computational analysis for enzymatic degradation of xenobiotic polymers, Applied Mathematical Modelling 30 (2006) 1497--1514. M. Watanabe, F. Kawai, S. Tsuboi, S Nakatsu, and H. Ohara, Study on enzymatic hydrolysis of polylactic acid by endogenous depolymerizaion model, Macromolecular Theory and Simulations 16 (2007) 619--626. doi:10.1002/mats.200700015 M. Watanabe and F. Kawai, Modeling and analysis of biodegradation of xenobiotic polymers based on experimental results, Proceedings of the 8th Biennial Engineering Mathematics and Applications Conference, EMAC-2007, Editors: Geoffry N. Mercer and A. J. Roberts, ANZIAM J. 49 (EMAC-2007) pp.C457--C474, 2008. http://anziamj.austms.org.au/ojs/index.php/ANZIAM/article/view/361 M. Watanabe and F. Kawai, Mathematical Modeling and Numerical Study of Biodegradation of Xenobiotic Polymers with Experimental Data, Ecological Modeling for Sustainable Development, 2nd Regional Conference on Ecological and Environmental Modelling, August 28--30, 2007, Penang, Malaysia, Editors: Koh Hock Lye, ShahrulAnuar Mohd Sah, Anita Talib, Zary Shariman Yahaya, pp.80--87 (2009)
Study of biodegradation of xenobiotic polymers with change of microbial population
No full textMicrobial depolymerization processes of polyethylene glycol are studied. A mathematical model, developed originally for endogenous type depolymerization processes, is applied to exogenous type depolymerization processes. An inverse problem is solved numerically to determine a degradation rate. An initial value problem is solved numerically to simulate the transition of weight distribution.
References F. Kawai. Biodegradability and chemical structure of polyethers. Kobunshi Ronbunshu, 50(10):775--780, 1993. In Japanese. F. Kawai. Breakdown of plastics and polymers by microorganisms. Advances in Biochemical Engineering/Biotechnology, 52:151--194, 1995. F. Kawai. Microbial degradation of polyethers. Applied Microbiology and Biotechnology, 58:30--38, 2002. doi:10.1007/s00253-001-0850-2 F. Kawai. Xenobiotic polymers. In T. Imanaka, editor, Great Development of Microorganisms, pages 865--870, Tokyo, 2002. NTS. Inc. In Japanese. F. Kawai, M. Watanabe, M. Shibata, S. Yokoyama, and Y. Sudate. Experimental analysis and numerical simulation for biodegradability of polyethylene. Polymer Degradation and Stability, 76:129--135, 2002. doi:10.1016/S0141-3910(02)00006-X F. Kawai, M. Watanabe, M. Shibata, S. Yokoyama, Y. Sudate, and S. Hayashi. Comparative study on biodegradability of polyethylene wax by bacteria and fungi. Polymer Degradation and Stability, 86:105--114, 2004. doi:10.1016/j.polymdegradstab.2004.03.015 J. D. Lambert. Computational Methods in Ordinary Differential Equations. John Wiley and Sons, Chichester, 1973. S. Matsumura, N. Tomizawa, A. Toki, K. Nishikawa, and K. Toshima. Novel poly(vinyl alcohol)-degrading enzyme and the degradation mechanism. Macromolecules, 32:7753--7761, 1999. doi:10.1021/ma990727b M. Watanabe and F. Kawai. Numerical simulation of microbial depolymerization process of exogenous type. In Rob May and A. J. Roberts, editors, Proc. of 12th Computational Techniques and Applications Conference, CTAC-2004, Melbourne, Australia in September 2004, volume 46(E) of ANZIAM J., pages C1188--C1204, 2005. http://anziamj.austms.org.au/ojs/index.php/ANZIAMJ/article/view/1014 M. Watanabe and F. Kawai. Mathematical modelling and computational analysis for enzymatic degradation of xenobiotic polymers. Applied Mathematical Modelling, 30:1497--1514, 2006. doi:10.1016/j.apm.2005.12.011 M. Watanabe and F. Kawai. Mathematical study of the biodegradation of xenobiotic polymers with experimental data introduced into analysis. In Andrew Stacey, Bill Blyth, John Shepherd, and A. J. Roberts, editors, Proceedings of the 7th Biennial Engineering Mathematics and Applications Conference, EMAC-2005, Melbourne, volume 47 of ANZIAM J., pages C665--C681, 2007. http://anziamj.austms.org.au/ojs/index.php/ANZIAMJ/article/view/1069 M. Watanabe and F. Kawai. Modeling and analysis of biodegradation of xenobiotic polymers based on experimental results. In Geoffry N. Mercer and A. J. Roberts, editors, Proceedings of the 8th Biennial Engineering Mathematics and Applications Conference, EMAC-2007, volume 49 of ANZIAM J., pages C457--C474, 2008. http://anziamj.austms.org.au/ojs/index.php/ANZIAM/article/view/361 M. Watanabe and F. Kawai. Mathematical analysis of microbial depolymerization processes of xenobiotic polymers. In Geoffry N. Mercer and A. J. Roberts, editors, Proceedings of the 14th Biennial Computational Techniques and Application Conference, CTAC2008, volume 50 of ANZIAM J., pages C930--C946, 2009. http://anziamj.austma.org.au/ojs/index.php/ANZIAMJ/article/view/1465 M. Watanabe and F. Kawai. Modeling and simulation of biodegradation of xenobiotic polymers based on experimental results. In BIOSIGNALS 2009, Second International Conference on Bio-inspired Systems and Signal Processing, Proceedings, Porto, Portugal, 14--17 January, 2009, pages 25--34. INSTICC Press, 2009. M. Watanabe and F. Kawai. Effects of microbial population in degradation process of xenobiotic polymers. In P. Howlett, M. Nelson, and A. J. Roberts, editors, {Proceedings of the 9th Biennial Engineering Mathematics and Applications Conference, EMAC-2009}, volume 51 of ANZIAM J., pages C682--C696, 2010. http://anziamj.austma.org.au/ojs/index.php/ANZIAMJ/article/view/2433 M. Watanabe, F. Kawai, M. Shibata, S. Yokoyama, and Y. Sudate. Computational method for analysis of polyethylene biodegradation. Journal of Computational and Applied Mathematics, 161(1):133--144, December 2003. doi:10.1016/S0377-0427(03)0051-X Masaji Watanabe and Fusako Kawai. Numerical simulation for enzymatic degradation of poly(vinyl alcohol). Polymer Degradation and Stability, 81:393--399, 2003. doi:10.1016/S0141-3910(03)00122-8 Masaji Watanabe, Fusako Kawai, Sadao Tsuboi, Shogo Nakatsu, and Hitomi Ohara. Study on enzymatic hydrolysis of polylactic acid by endogenous depolymerization model. {Macromolecular Theory and Simulations}, 16:619--626, 2007. doi:10.1002/mats.20070001
Study on microbial depolymerization processes of xenobiotic polymers with mathematical modelling and numerical simulation
No full textMicrobial depolymerization processes of polyethylene glycol are studied using a model for general depolymerization processes. The model involves a degradation rate that is a product of a time factor and a molecular factor. An inverse problem is solved numerically to determine the time factor using weight distributions with respect to the molecular weight before and after cultivation of a microbial consortium. The time factor is the microbial population whose carbon source is the liberated monomers. An initial value problem is solved numerically to simulate the transition of the weight distribution and the microbial population.
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