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1. |
Record Nr. |
UNINA9910557299203321 |
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Autore |
Rossi Filippo |
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Titolo |
Mycotoxins in Feed and Food Chain : Present Status and Future Concerns |
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Pubbl/distr/stampa |
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Basel, Switzerland, : MDPI - Multidisciplinary Digital Publishing Institute, 2020 |
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Descrizione fisica |
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1 online resource (224 p.) |
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Soggetti |
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Humanities |
Social interaction |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Sommario/riassunto |
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The book deals with mycotoxins, their presence in various types of food, and how to prevent their presence in food . In addition to well-known molecules, such as aflatoxins or fumonisins, some contributors have dealt with emerging mycotoxins (e.g., alternaria toxins, botryodiplodin). Readers of the book can also find a new approach to reducing aflatoxins and fumonisins in food. In conclusion, the book presents both new mycotoxins and new information on old mycotoxins. |
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2. |
Record Nr. |
UNINA9910557400803321 |
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Autore |
Böttcher Anke |
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Titolo |
Study of an alternative phase field model for low interfacial energy in elastic solids / Anke Böttcher |
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Pubbl/distr/stampa |
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Berlin, : Logos Verlag Berlin, 2021 |
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[s.l.] : , : Logos Verlag Berlin, , 2021 |
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Descrizione fisica |
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1 online resource (152 p.) |
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Soggetti |
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Science / Chemistry |
Science / Physics |
Mathematics |
Science |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Sommario/riassunto |
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In 2005, the hybrid model was published by Prof. H.-D. Alber and Prof. P. Zhu as an alternative to the Allen-Cahn model for the description of phase field transformations. With low interfacial energy, it is more efficient, since the resolution of the diffuse interface is numerically broader for the same solution accuracy and allows coarser meshing. The solutions of both models are associated with energy minimisation and in this work the error terms introduced in the earlier publications are discussed and documented using one and two dimensional numerical simulations. In the last part of this book, phase field problems, initially not coupled with material equations, are combined with linear elasticity and, after simple introductory examples, a growing martensitic inclusion is simulated and compared with literature data. In addition to the confirmed numerical advantage, another phenomenon not previously described in the literature is found: with the hybrid model, in contrast to the examples calculated with the Allen-Cahn model, an inclusion driven mainly by curvature energy does not disappear completely. The opposite problem prevents inclusions from growing from very small initial configurations, but this fact can be |
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remedied by a very finely chosen diffuse interface width and by analysing and adjusting the terms that generate the modelling errors. The last example shows that the hybrid model can be used with numerical advantages despite the above mentioned peculiarities. |
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