Počet záznamů: 1
Fast Forecasting of VGF Crystal Growth Process by Dynamic Neural Networks
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SYSNO ASEP 0505764 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Fast Forecasting of VGF Crystal Growth Process by Dynamic Neural Networks Tvůrce(i) Dropka, N. (DE)
Holeňa, Martin (UIVT-O) SAI, RID
Ecklebe, S. (DE)
Frank-Rotsch, C. (DE)
Winkler, J. (DE)Zdroj.dok. Journal of Crystal Growth. - : Elsevier - ISSN 0022-0248
Roč. 521, 1 September (2019), s. 9-14Poč.str. 6 s. Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova Computer simulation ; Fluid flows ; Gradient freeze technique Vědní obor RIV BM - Fyzika pevných látek a magnetismus Obor OECD Condensed matter physics (including formerly solid state physics, supercond.) CEP GA18-18080S GA ČR - Grantová agentura ČR Způsob publikování Omezený přístup Institucionální podpora UIVT-O - RVO:67985807 UT WOS 000470831700002 EID SCOPUS 85066255424 DOI 10.1016/j.jcrysgro.2019.05.022 Anotace Fast forecasting of process variables during the crystal growth is a critical step in a process development, optimization and control. The common approach based on computational fluid dynamics modeling is accurate, but too slow to deliver results in real time. Here we conducted a feasibility study on the application of dynamic artificial neural networks in the forecasting of VGF-GaAs crystal growth cooling program. Particularly, we studied various Nonlinear-AutoRegressive artificial neural networks with eXogenous inputs (NARX) with 2 external inputs and 6 outputs derived from 500 transient data sets. Data were generated by transient 1D CFD simulation. The first encouraging results are presented and the pros and cons of the application of dynamic artificial neural networks for the fast predictions of VGF process parameters are discussed. Pracoviště Ústav informatiky Kontakt Tereza Šírová, sirova@cs.cas.cz, Tel.: 266 053 800 Rok sběru 2020 Elektronická adresa http://dx.doi.org/10.1016/j.jcrysgro.2019.05.022
Počet záznamů: 1