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1. |
Record Nr. |
UNINA9910674015903321 |
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Titolo |
Dietary Zn and Human Health / / edited by Elad Tako |
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Pubbl/distr/stampa |
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Basel : , : MDPI - Multidisciplinary Digital Publishing Institute, , 2018 |
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©2018 |
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Descrizione fisica |
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1 online resource (ix, 228 pages) : illustrations |
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Disciplina |
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Soggetti |
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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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Nota di bibliografia |
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Includes bibliographical references. |
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Sommario/riassunto |
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- Zinc (Zn) is an essential micronutrient that contributes to the proper functioning of over 300 enzymes and multiple biochemical and structural processes in the body. Zinc functions in the regulation of an extensive variety of genes, such as those involved in nucleic acid metabolism, cell signalling, apoptosis, and plays an integral role in immune system functioning. Even a mild Zn deficiency can profoundly affect growth and development, as well as impede immune differentiation and maturation. Zinc is widely distributed in foods, however, it was demonstrated that dietary constituents, such as phytate, polyphenols, and the intestinal microbiome, affect its dietary bioavailability and intestinal absorption. Regulation of zinc metabolism is achieved through a balance of absorption and excretion and involves adaptive mechanisms. The aim of this Special Issue is to explore dietary approaches that aim to improve Zn bioavailability and absorption, biomarkers of status, and the effect of Zn status on the intestinal microbiome. |
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2. |
Record Nr. |
UNINA9910784809203321 |
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Autore |
Sahai Y (Yogeshwar), , Ph. D. |
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Titolo |
Tundish technology for clean steel production [[electronic resource] /] / Yogeshwar Sahai, Toshihiko Emi |
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Pubbl/distr/stampa |
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Singapore ; ; Hackensack, NJ, : World Scientific, c2008 |
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ISBN |
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1-281-93838-6 |
9786611938383 |
981-279-076-4 |
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Descrizione fisica |
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xii, 316 p. : ill. (some col.) |
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Altri autori (Persone) |
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Disciplina |
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Soggetti |
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Steel - Metallurgy |
Steel founding |
Continuous casting |
Steel - Inclusions |
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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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Note generali |
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Bibliographic Level Mode of Issuance: Monograph |
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Nota di bibliografia |
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Includes bibliographical references and index. |
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Nota di contenuto |
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1. Introduction -- 2. Non-metallic inclusions -- 3. Review of fluid flow and turbulence -- 4. Fluid flow characterization -- 5. Modeling of melt flow -- 6. Tundish operation -- 7. Melt temperature control -- 8. Recent, emerging, and novel technologies. |
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Sommario/riassunto |
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"Continuous casting of steel has become a widely used process and an important step in steel production. The worldwide share of continuously cast steel has increased significantly in the last 25 years or so. However, concurrent with this increase in production levels are stringent quality requirements that have become crucial in the face of progressively increasing machine throughputs and larger product dimensions. As a result, steel cleanliness and strict composition control are now the primary concern of steelmakers. The tundish is the last metallurgical vessel through which molten metal flows before solidifying in the continuous casting mold. During the transfer of metal through the tundish, molten steel interacts with refractories, slag, and the atmosphere. Thus, the proper design and operation of a tundish are important for delivering steel of strict composition and quality. This pioneering book is the first of its kind to cover all aspects of tundish |
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technology, ranging from fundamental aspects and theory necessary for understanding the basic concepts of tundish operations to operational aspects of the tundish. Written by internationally recognized experts in continuous casting technology in general and tundish technology in particular, this book is sufficiently fundamental to serve as a graduate-level textbook on process metallurgy or as an important reference for metallurgical researchers; at the same time, it is comprehensive enough to contribute to the understanding of scientists and engineers engaged in research and development in the steel industry." |
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