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| 1 | Artificial Intelligence in Steam Cracking Modeling: A Deep Learning Algorithm for Detailed Effluent Prediction显示文摘Chemical processes can bene t tremendously from fast and accurate ef uent composition prediction for plant design, control, and optimization. The Industry 4.0 revolution claims that by introducing machine learning into these elds, substantial economic and environmental gains can be achieved. The bottleneck for high-frequency optimization and process control is often the time necessary to perform the required detailed analyses of, for example, feed and product. To resolve these issues, a framework of four deep learning arti cial neural networks (DL ANNs) has been developed for the largest chemicals production process steam cracking. The proposed methodology allows both a detailed characterization of a naphtha feedstock and a detailed composition of the steam cracker ef uent to be determined, based on a limited number of commercial naphtha indices and rapidly accessible process characteristics. The detailed char- acterization of a naphtha is predicted from three points on the boiling curve and paraf ns, iso-paraf ns, ole ns, naphthenes, and aronatics (PIONA) characterization. If unavailable, the boiling points are also estimated. Even with estimated boiling points, the developed DL ANN outperforms several established methods such as maximization of Shannon entropy and traditional ANNs. For feedstock reconstruction, a mean absolute error (MAE) of 0.3 wt% is achieved on the test set, while the MAE of the ef uent predic- tion is 0.1 wt%. When combining all networks using the output of the previous as input to the next the ef uent MAE increases to 0.19 wt%. In addition to the high accuracy of the networks, a major bene t is the negligible computational cost required to obtain the predictions. On a standard Intel i7 processor, predictions are made in the order of milliseconds. Commercial software such as COILSIM1D performs slightly better in terms of accuracy, but the required central processing unit time per reaction is in the order of seconds. This tremendous speed-up and minimal accuracy loss make the presented framework highly suitable for the continuous monitoring of dif cult-to-access process parameters and for the envi- sioned, high-frequency real-time optimization (RTO) strategy or process control. Nevertheless, the lack of a fundamental basis implies that fundamental understanding is almost completely lost, which is not always well-accepted by the engineering community. In addition, the performance of the developed net- works drops signi cantly for naphthas that are highly dissimilar to those in the training set. | Pieter PPlehiers Steffen HSymoens Ismaël Amghizar Guy B.Marin Christian V.Stevens Kevin M.Van Geem | 2019 | Engineering2019，5，6： | 9 |
| 2 | Phase I study of matuzumab in combination with 5-fluorouracil, leucovorin and cisplatin (PLF) in patients with advanced gastric and esophagogastric adenocarcinomas显示文摘 | Tanja Trarbach Marta Przyborek Norbert Schleucher Steffen Heeger Christian Lüpfert Udo Vanhoefer | 2013 | Investigational New Drugs2013，，3： | 3 |
| 3 | 大肠埃希菌临床菌株对氟喹诺酮类的耐药机制显示文摘 | Morgan-Linnell SK Becnel Boyd L Steffen D 袁瑾懿 王明贵 | 2010 | 中国感染与化疗杂志2010，10，3： | 2 |
| 4 | Recent applications of protein arrays in target identification and disease monitoring 显示文摘 | KRISTA L WITTE STEFFEN N | 2004 | Drug Discovery Today:Technologies2004，1，： | 1 |
| 5 | 查看详情显示文摘 | Baur M Fedorov A Steffen L Filipp S Silva M P Wallraff A | | 0，，： | 1 |
| 6 | Detection ofT cell receptor circles (TRECs) as biomarkers for de novo T cell synthesis using a quantitative polymerase chain reaction-enzyme linked immunosor- bent assay (PCR-ELISA) 显示文摘 | Al-Harthi L Marchetti G Steffens CM | 2000 | J Immunol Methods2000，237，12： | 1 |
| 7 | Spinal anesthesia for cesarean section:isobaric versus hyperbaric solution显示文摘 | Wood L Steffens | 1999 | Acta Anaesthesiol Sin1999，37，2： | 1 |
| 8 | Spinal anesthesia for cesarean section: isobaric versus hyperbaric solution显示文摘 | KingHK Wood L Steffens Z | 2006 | Acta Anaesthesiol Sin2006，35，： | 1 |
| 9 | Distinct differentiation potential of blood monocyte subsets in the lung 显示文摘 | Limor L Chen V Steffen J | 2007 | The Journal of Immunology2007，178，4： | 1 |
| 10 | In vivo engineering of a human vasculature for bone tissue engineering applications显示文摘 | Steffens L Wenger A Stark GB | 2009 | J Cell Mol Med2009，13，9： | 1 |
| 11 | Overexpression of polyphenol oxidase in transgenic tomato plants results in enhanced bacterial disease resistance显示文摘 | Li L Steffens J C | 2002 | Planta2002，215，2： | 1 |
| 12 | Producing STR locus patterns from bloodstains and other forensic samples using an infrared fluorescent automated DNA sequencer显示文摘 | Roy R Steffens D L Gartside B | 1996 | J Forensic Sci1996，41，3： | 1 |
| 13 | In vitro effects of 2- methoxyestradiol on MCF-12A and MCF-7 cell growth,morpholo- gy and mitotic spindle formation 显示文摘 | Van Zijl C Lottering M L Steffens F | 2008 | Cell Biochem Funct2008，26，63： | 1 |
| 14 | Streptozocin/5-fluorouracil chemotherapy is associated with durable response in patients with advanced pancreatic neureendocrine turnouts 显示文摘 | Dilz L M Denecke T Steffen I G | 2015 | Eur J Cancer2015，51，10： | 1 |
| 15 | Comparative photoinhibition of a high and a low altitude ecotype of tomato ( Lycopersicon hirsutum) to chilling stress under high and low light conditions 显示文摘 | Jung S Steffen K L Lee H J | 1998 | Plant Science1998，134，1： | 1 |
| 16 | Wacker-type oxidation of internal alkenes using Pd (Quinox) and TBHP显示文摘 | Ryaia J DeLuca Jennifer L Edwards Laura D Steffens | 2013 | Journal of Organic Chemistry2013，78，4： | 1 |
| 17 | Development and application of a higlrthroughput microneu-tralization assay:lack of xenotropic murine leukemia virus-related virus and/or murine leukemia virus detection in blood donors显示文摘 | Zhou Y Steffen I Montalvo L | 2012 | Transfusion2012，52，2： | 1 |
| 18 | CD44 expression and regulation during mammary gland development and function显示文摘 | Hebbard L Steffen A Zawadzki V Fieber C | 2000 | J Cell Sci2000，113，： | 1 |
| 19 | Aza uracil and related nucleicacid analogs as inhibitors of axillary bud growth in tobacco显示文摘 | Schaeffer G W G L Steffens | 1965 | Tobacco Science1965，，9： | 1 |
| 20 | Recent patterns and mechanisms of carbon exchange by terrestrial ecosystems显示文摘 | Schimel D S House J I Hibbard K A Bousquet P Ciais P Peylin P Braswell B H Apps M J Baker D Bondeau A Canadell J Churkina C: Cramer W Denning A S Field CB Friedlingstein P Goodale C Heimann M Houghton RA Melillo J M Moore B 3rd Murdiyarso D Noble L Pacala S W Prentice I C Raupach M R Rayner P J Scholes R J Steffen W L Wirth C | 2001 | Nature2001，414，： | 1 |
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