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European Metallurgical Conference, EMC 2011

作者： Besson, Sandra Pichat, Anne Xolin, Elodie Chartrand, Patrice Friedrich, Bernd RWTH Aachen University IME Process Metallurgy and Metals Recycling Intzestraße 3 52056 Aachen Germany Alcan CRV Voreppe Research Center Parc Economique centr'Alp 725 rue Aristide Bergès - BP 27 38341 Voreppe cedex France Dept. of Chemical Engineering Ecole Polytechnique C.P. 6079 Succursale Downtown Montreal QC H3C 3A7 Canada

ISBN: (纸本)9783940276407

During melting of aluminium scraps under a salt flux cover, a stable suspension, mainly salt and oxides, is formed. This slag entraps metal droplets and thus prevents their recovery. For this reason, industrial aluminium recovery processes often involve the addition of fluorides, e.g. cryolite (Na ₃AlF₆), to the chloride salt flux. This addition helps stripping the oxide layer that imprisons metal droplets and thus improves coalescence. It ultimately leads to increased recovery rates. In this study, the coalescence of aluminium droplets was investigated in presence of an equimolar NaCl-KCl salt mixture under different temperatures: 800 °C, 875 °C and for two common alloys: AA3104 (body of beverage cans) and AA8979 (foils). SEM and XRD analyses were carried out on the resulting beads and on the leaching residues in order to better understand the mechanism of coalescence. Factsage™, a thermochemical calculation software, was also used to further understand the involved phenomena. The experiments carried out at the IME institute in Aachen have shown the impact of cryolite additions in the coalescence process. The alloying element Mg was also found to play a major role in the coalescence behaviour. Finally, modifications in the composition of the oxide layer of aluminium droplets were exhibited as well as variations in the concentration of surface active elements.

关键词： Aluminium recycling Coalescence Salt Slag Tilting rotary furnace

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Hybrid discrete event simulation with model predictive control for semiconductor supply-chain manufacturing

Hybrid discrete event simulation with model predictive contr...

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Simulation Winter Conference

作者： H.S. Sarjoughian Dongping Huang G.W. Godding Wenlin Wang D.E. Rivera K.G. Kempf H.D. Mittelmann Arizona Center for Integrative Modeling & Simulation Computer Science & Engineering Department Arizona State University Tempe AZ USA Control Systems Engineering Laboratory Chemical & Materials Engineering Department Arizona State University Tempe AZ USA Decision Technologies Intel Corporation Chandler AZ USA Mathematics & Statistic Dept. Arizona State University Tempe AZ USA

Simulation modeling combined with decision control can offer important benefits for analysis, design, and operation of semiconductor supply-chain network systems. Detailed simulation of physical processes provides information for its controller to account for (expected) stochasticity present in the manufacturing processes. In turn, the controller can provide (near) optimal decisions for the operation of the processes and thus handle uncertainty in customer demands. In this paper, we describe an environment that synthesizes discrete-event system specification (DEVS) with model predictive control (MPC) paradigms using a knowledge interchange broker (KIB). This environment uses the KIB to compose discrete event simulation and model predictive control models. This approach to composability affords flexibility for studying semiconductor supply-chain manufacturing at varying levels of detail. We describe a hybrid DEVS/MPC environments via a knowledge interchange broker. We conclude with a comparison of this work with another that employs the Simulink/MATLAB environment.

关键词： Discrete event simulation Predictive models Predictive control Virtual manufacturing Semiconductor device manufacture Mathematical model Analytical models Manufacturing processes Optimal control Uncertainty

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Optimization of extraction of bioactives from different wastes and by-products of agro- and food industry 28th

Optimization of extraction of bioactives from different wast...

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28th European Biomass Conference and Exhibition, e-EUBCE 2020

作者： Vági, E. Tolner, M. Molnár, M. Varga, G. Horváth, V. Renkecz, T. Székely, E. Budapest University of Technology and Economics Dept. of Chemical and Environmental Process Engineering Műegyetem rkp. 3 Budapest1111 Hungary Budapest University of Technology and Economics Dept. of Applied Biotechnology and Food Science Gellért tér 4 Budapest1111 Hungary Budapest University of Technology and Economics Dept. of Inorganic and Analytical Chemistry Gellért tér 4 Budapest1111 Hungary MTA-BME Computation Driven Chemistry Research Group Gellért tér 4 Budapest1111 Hungary Toxi-Coop Toxicological Research Center Berlini utca 47-49 Budapest1045 Hungary

We aimed to quantify the bioactives (natural preservatives and functional substances) from agro- and food industrial waste streams and offer technological solutions to produce value-added products from agro-food wastes. Extracts with potent antioxidant properties were obtained from lavender steam- and hydro-distilled residues, sea buckthorn stalks and from swept walnut tree- and freshly collected black mulberry leaves. The applied methods (Soxhlet-, stirred-, and ultrasound assisted extraction), solvents, and process parameters of extraction (extraction time, temperature and feed-to-solvent ratio) were optimized for all waste sources aiming for the highest extraction yield with the highest concentration of the targeted bioactives in the extracts. The antioxidant activity of extracts was analyzed by the DPPH method in the presence of 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical. The content of total phenolics was quantified using Folin-Ciocalteu’s phenol reagent. Individual phenolic compounds were quantified by HPLC and LC-MS/MS. The antioxidant activities correlate well with the total polyphenol contents. The extracts of sea buckthorn stalk, lavender steam distilled residue and walnut leaves showed as strong antioxidant activities as the synthetic alternatives (BHT, BHA). Extracts from sea buckthorn stalk exhibited strong antibacterial activities in standard in vitro antimicrobial tests in the presences of different strains of Gram-negative and Gram-positive bacteria. © 2020, ETA-Florence Renewable Energies. All Rights Reserved.

关键词： Agricultural residues Antioxidant and antimicrobial activities Bioproducts Extraction Food additives

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Incorporation of Raw Material Quality Information on Fermentation Estimation Models

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IFAC Proceedings Volumes 2001年第5期34卷 421-426页

作者： C.C.F. Cunha J. Glassey G.A. Montague S. Albert P. Mohan Dept. Chemical and Process Engineering University of Newcastle upon Tyne Newcastle upon Tyne NEl 7RU. UK Eli Lilly & Co Speke Operations. Fleming Road Speke. Liverpool. L24 9LN UK Eli Lilly & Co. Engineering Technology Center. Indianapolis 46285 USA

This paper investigates the influence of the quality of complex raw materials in a fermentation process by developing data-based models (using Multiway Partial Least Squares) for final productivity estimation in an industrial antibiotic production operated by Eli Liliy. Near infrared (NIR) spectroscopy measurements of a selected raw material are available. Wavelets are used to compress the NIR spectra for use in the models, while still retaining the main information about the raw material.

关键词： Bioprocess monitoring multiway partial least squares raw material wavelets performance monitoring statistical analysis

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Abstracts of presentations at the 18th Conference of the Entomological Society of Israel - May 18, 2000 - ARO, The Volcani center, Bet Dagan, Israel

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PHYTOPARASITICA 2001年第1期29卷 51-89页

作者： [Anonymous] Dept. of Cell and Animal Biology The Hebrew University of Jerusalem Jerusalem Israel Dept. of Entomology Israel Dept. of Chemistry The Volcani Center ARO Bet Dagan Integrated Pest Management Fruit Crops Experiment Station Agriculture Company in Upper Galilee Kibbutz Yiron Ministry of Agriculture and Rural Development Extension Service Qiryat Dept. of Stored Products Pheromone Research Lab. ARO The Volcani Center Bet Dagan Israel Div. of Bioresource and Bioenvironmental Sciences Graduate School Kyushu University Fukuoka Japan Mitrani Dept. for Desert Ecology Blaustein Institute for Desert Research Ben-Gurion University of the Negev Sede Boqer Campus Israel Dept. of Chemistry University of Hamburg Germany Dept. of Entomology ARO The Volcani Center Bet Dagan Dept. of Zoology Faculty of Life Science Tel-Aviv University Tel Aviv Israel Plant Protection and Inspection Services Ministry of Agriculture and Rural Development Bet Dagan Israel Carmel Mizrahi Rishon LeZiyyon Ministry of Agriculture and Rural Development Extension Service Rehovot Israel Agricultural Department Agan Chemical Manufacturers Ashdod Israel Dept. of Entomology ARO Gilat Research Station M.P. Negev Israel Entomology Laboratory Ministry of Health Jerusalem Israel Kimron Veterinary Institute Bet Dagan Israel USDA/ARS Gainesville USA Dept. of Stored Products ARO The Volcani Center Bet Dagan Israel Dept. of Plant Protection Southwest Agricultural University Chonqing China Makliteshim Chemical Works Ltd. Be’er Sheva Israel Dept. of Entomology ARO The Volcani Center Bet Dagan Israel Jerusalem Bet Dagan Israel Plant Protection Division Extension Service Ministry of Agriculture and Rural Development 1 ha ’Hamaqim District Bet Dagan Dept. of Plant Science Faculty of Life Science Tel-Aviv University Tel Aviv Israel Dept. of Plant Sciences Tel-Aviv University Tel Aviv Vitality Biotechnologies (Israel) Ltd. Carmel Industrial Park Tirat HaCarmel Israel Max-Planck-Institut Cologne

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CIRCADIAN RHYTHM AS A PHASE-LOCKED LOOP

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IFAC Proceedings Volumes 2005年第1期38卷 1-6页

作者： Hidenori Kimura Yoshimichi Nishigaki )Bio-Mimetic Control Research Center RIKEN (The Institute of Physical and Chemical Research) 2271-130 Anagahora Shimoshidami Moriyama-ku Nagoya Aichi 463-0003 Japan Dept. of Complexity Science and Engineering Graduate School of Frontier Science The University of Tokyo 5-1-5 Kashiwanoha Kashiwa-shi Chiba 277-8562 Japan

The circadian rhythm is a sort of biological clock that works in the cell level synchronized with a day rhythm of light condition. It is ubiquitous in living organisms. This paper tries to establish an analogy of circadian rhythm with the Phase Locked Loop (PLL) which is widely used in various fields of engineering. Though the analogy is not complete, the PLL framework is shown to give a nice new paradigm to discuss the intrinsic structure of the circadian rhythm.

关键词： Biocontrol Biocybernetics Phase-locked loop Oscillation Synchronization

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Distributed Functional Safety for Modular process Plants

Distributed Functional Safety for Modular Process Plants

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International Conference on Emerging Technologies and Factory Automation (ETFA)

作者： Anselm Klose Florian Pelzer Mike Barth Rainer Drath Rainer Oehlert Silvia Vélez León Alexander Horch Christoph Kotsch Jochen Knab Bernhard Gut Hartmut Manske Leon Urbas Process Control Systems & Process Systems Engineering TU Dresden Dresden Germany Research Training Group 2323 TU Dresden Dresden Germany IoS³ - Institute of Smart Systems and Services Pforzheim University Pforzheim Germany Retired Process Engineering & Automation The Dow Chemical Company Stade Germany Dept. Global Consulting HIMA Paul Hildebrandt GmbH Brühl Germany R. D. & Product Management HIMA Paul Hildebrandt GmbH Brühl Germany Control Systems Technology BASF SE Ludwigshafen Germany Engineering Services Merck KGaA Darmstadt Germany Retired Electrical Engineering for Process Automation Endress+Hauser Germany Automation and Robotics Merck KGaA Darmstadt Germany

ISBN: (数字)9781728189567

ISBN: (纸本)9781728189574

Modular process plants enable the process industry to adapt to volatile and fluctuating markets. The preferred process technology concept for these market scenarios is realized through combining pre-engineered process equipment assemblies (PEA) from different manufacturers with standardized interfaces. While the flexibility gain for this type of plants is high, the design of the safety systems of these modular plants in terms of exchangeability and compatibility is challenging. One solution could be the development of a safety-interface for PEAs to create flexible and scalable safety systems. The principles of modular basic process control are analyzed and requirements with respect to safety design are discussed. The authors provide a differentiation of the intramodular safety concept of a single PEA from the intermodular safety concept of a complete modular plant. A concept for safe and modular interaction of PEAs in a modular plant is developed and additionally validated on a basic demonstrator. Finally, from these findings, standardization requirements are provided and aspects for further research are pointed out.

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Future Needs for the control Theory in Industries–Report and topics of the control techllology survey in Japanese industry–

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IFAC Proceedings Volumes 1997年第9期30卷 281-286页

作者： Haruo Takatsu Toshiaki Itoh Mituhiko Araki Control System Center Yokogawa Electric Corporation 2-9-22 Naka-cho Musashino-shi Tokyo 180 Japan Production Technology Division Mitsubishi Chemical Corporation 2-5-2 Marunouchi Chiyoda-ku Tokyo 100. Japan Dept. Electrical Engineering Kyoto University Yoshida-Honmachi Sakyo-ku Kyoto 606-01 Japan

A survey on applications of control technologies in Japanese industries is made based on the inquiry investigation conducted in 1995 by SICE. To the inquiry investigation, 148 engineers from 110 factories responded and gave 148 examples of applications. The survey also makes use of the data of the similar investigation conducted in 1989 by JEMIMA for comparison purpose. Several statistics about characteristics of plants, areas of applications, advantage and disadvantage of each technology, expectations of engineers, etc. are given, which clarifies several features of the future needs for control theory.

关键词： control theory statistics of applications industrial needs

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Fulgur: MATLAB GUI Application for Working with near Infrared Calibration Sets. Part 2: The Source Code

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NIR news 2016年第2期27卷 13 - 17页

作者： Esben J. Bjerrum Pia Jørgensen Rita L. Fernandes Krist V. Gernaey Thomas Skov Spectroscopy and Chemometrics Department of Food Science Copenhagen University Rolighedsvej 26 1958 Frederiksberg DenmarkWildcard Pharmaceutical Consulting Frødings Alle 41 2860 Søborg Denmark Dong Energy Thermal Power Power New BioSolutions Kraftværksvej 53 7000 Fredericia Denmark CAPEC-PROCESS Research Center Dept. of Chemical and Biochemical Engineering Technical University of Denmark (DTU) Building 229 2800 Kgs. Lyngby Denmark Spectroscopy and Chemometrics Department of Food Science Copenhagen University Rolighedsvej 26 1958 Frederiksberg Denmark

Near infrared (NIR) instruments in combination with multivariate data calibration models are useful tools in process monitoring. However, the need for expert assistance with calibration and maintenance of the models is a bottleneck limiting their more widespread use. In the previous article [NIR news26(8), 13–16 (2015)], the MATLAB graphical application called Fulgur was introduced. Fulgur was developed as part of the BIOPRO “Hands Free” project with the goal of developing automated methods for handling data sets and calibrations of partial least squares models for NIR instruments. In this article, the Model-View-controller programming design principles needed for developing the application are described in more dept. as an introduction for potential developers who may want to use and expand the Fulgur framework. The programing design principles may also be of interest to chemometricians who want to program and develop their own GUI applications in MATLAB. The source code for the application together with more in-dept. user and developer guides and tutorials for programming plugins is available for download from ***.

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Letter to the editor

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AIChE Journal 2006年第5期52卷

作者： J. M. F. Silva A. Knoechelmann C. E. Lopes M. R. Wolf-Maciel Antonio J. A. Meirelles Chemical Engineering Dept. Technology Center Federal University of Pernambuco (UFPE) Recife PE Brazil 50670-901 Faculty of Chemical Engineering State University of Campinas (UNICAMP) and Chemical Process Dept.-Laboratory of Development Process Separation Cidade Universitária Zeferino Vaz-6066-Campinas São Paulo Brazil 13081-970 State University of Campinas (UNICAMP)-Food Engineering Dept. (FEA) Physical Separation Laboratory(LASEFI) PO.Box 6121 Campinas/SP 13083-970 Brazil

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