TY - JOUR A1 - Rolletter, Michael A1 - Kaminski, Martin A1 - Acir, Ismail-Hakki A1 - Bohn, Birger A1 - Dorn, Hans-Peter A1 - Li, Xin A1 - Lutz, Anna A1 - Nehr, Sascha A1 - Rohrer, Franz A1 - Tillmann, Ralf A1 - Wegener, Robert A1 - Hofzumahaus, Andreas A1 - Kiendler-Scharr, Astrid A1 - Wahner, Andreas A1 - Fuchs, Hendrik T1 - Investigation of the α-pinene photooxidation by OH in the atmospheric simulation chamber SAPHIR JF - Atmospheric Chemistry and Physics N2 - Abstract. The photooxidation of the most abundant monoterpene, α-pinene, by the hydroxyl radical (OH) was investigated at atmospheric concentrations in the atmospheric simulation chamber SAPHIR. Concentrations of nitric oxide (NO) were below 120 pptv. Yields of organic oxidation products are determined from measured time series giving values of 0.11±0.05, 0.19±0.06, and 0.05±0.03 for formaldehyde, acetone, and pinonaldehyde, respectively. The pinonaldehyde yield is at the low side of yields measured in previous laboratory studies, ranging from 0.06 to 0.87. These studies were mostly performed at reactant concentrations much higher than observed in the atmosphere. Time series of measured radical and trace-gas concentrations are compared to results from model calculations applying the Master Chemical Mechanism (MCM) 3.3.1. The model predicts pinonaldehyde mixing ratios that are at least a factor of 4 higher than measured values. At the same time, modeled hydroxyl and hydroperoxy (HO2) radical concentrations are approximately 25 % lower than measured values. Vereecken et al. (2007) suggested a shift of the initial organic peroxy radical (RO2) distribution towards RO2 species that do not yield pinonaldehyde but produce other organic products. Implementing these modifications reduces the model–measurement gap of pinonaldehyde by 20 % and also improves the agreement in modeled and measured radical concentrations by 10 %. However, the chemical oxidation mechanism needs further adjustment to explain observed radical and pinonaldehyde concentrations. This could be achieved by adjusting the initial RO2 distribution, but could also be done by implementing alternative reaction channels of RO2 species that currently lead to the formation of pinonaldehyde in the model. KW - Luftreinhaltung Y1 - 2019 U6 - https://doi.org/10.5194/acp-19-11635-2019 SN - 1680-7324 N1 - Data availability Data of the experiments in the SAPHIR chamber used in this work are available on the EUROCHAMP data home page (https://data.eurochamp.org/, last access: 28 April 2019, Eurochamp, 2019). Supplement The supplement related to this article is available online at: https://doi.org/10.5194/acp-19-11635-2019-supplement. VL - 19 IS - 18 SP - 11635 EP - 11649 PB - Copernicus ER - TY - JOUR A1 - Bhattacharyya, Suvanjan A1 - Benim, Ali Cemal A1 - Chattopadhyay, Himadri A1 - Banerjee, Arnab T1 - Experimental investigation of heat transfer performance of corrugated tube with spring tape inserts JF - Experimental Heat Transfer Y1 - 2019 U6 - https://doi.org/10.1080/08916152.2018.1531955 SN - 0891-6152 VL - 32 IS - 5 SP - 411 EP - 425 PB - Taylor & Francis ER - TY - JOUR A1 - Nebel, Janine A1 - Schmidt, Stefan A1 - Pan, Qiushi A1 - Lotz, Katrin A1 - Kaluza, Stefan A1 - Muhler, Martin T1 - On the role of cobalt carbidization in higher alcohol synthesis over hydrotalcite-based Co-Cu catalysts JF - Chinese Journal of Catalysis Y1 - 2019 U6 - https://doi.org/10.1016/S1872-2067(19)63344-9 SN - 1872-2067 N1 - The research project is funded by the Federal Ministry of Education and Research (Bundesministerium für Bildung und Forschung, BMBF, Verbundvorhaben Carbon2Chem®, FKZ: 03EK3041). VL - 40 IS - 11 SP - 1731 EP - 1740 PB - Elsevier ER - TY - JOUR A1 - Girod, Kai A1 - Breitkreuz, Klaas A1 - Henning, Torsten A1 - Lohmann, Heiko A1 - Kaluza, Stefan A1 - Schluter, Stefan T1 - Steel Mills as Syngas Source for Methanol Synthesis: Simulation and Practical Performance Investigations JF - Chemical Engineering Transactions N2 - In the present contribution, the utilization of steel-mill gases for an industrial methanol synthesis process is described. The focus of this work is on the influence of syngas compositions derived from steel-mill gases on an industrial Cu/ZnO/Al2O3 catalyst. Elevated CO2 and H2O concentrations seem to have an irreversible impact on the activity of the catalyst. In order to obtain realistic gas composition for the catalyst tests, a process simulation of the methanol synthesis was conducted. The calculated gas compositions at the reactor inlet were applied in a practical test in order to evaluate the catalyst stability under steel mill gas conditions. No noticeable deactivation was observed. KW - DOAJ Y1 - 2019 SN - 978-88-95608-71-6 U6 - https://doi.org/10.3303/CET1974080 SN - 2283-9216 VL - 74 SP - 475 EP - 480 PB - AIDIC ER - TY - JOUR A1 - Biedermann, Till M. A1 - Reich, Marius A1 - Kameier, Frank A1 - Adam, Mario T1 - Assessment of statistical sampling methods and approximation models applied to aeroacoustic and vibroacoustic problems JF - Advances in Aircraft and Spacecraft Science KW - artificial neural networks KW - design of experiments KW - Latin hypercube sampling KW - aeroacoustics KW - aerodynamics KW - spectral analysis Y1 - 2019 UR - http://www.techno-press.org/content/?page=article&journal=aas&volume=6&num=6&ordernum=7 U6 - https://doi.org/10.12989/aas.2019.6.6.531 SN - 2287-528X VL - 6 IS - 6 SP - 529 EP - 550 PB - Techno Press ER - TY - JOUR A1 - Deckert, Carsten A1 - Schomaker, Rahel M. T1 - Kultur und Innovation – Wie sich kulturelle Faktoren auf die nationale Innovationsfähigkeit auswirken JF - Der Betriebswirt KW - Innovation Y1 - 2019 U6 - https://doi.org/10.3790/dbw.60.2.18 SN - 2628-7846 VL - 60 IS - 2 SP - 18 EP - 23 PB - Duncker & Humblot ER - TY - JOUR A1 - Pfeiffelmann, Björn A1 - Benim, Ali Cemal A1 - Joos, Franz T1 - A Finite Volume Analysis of Thermoelectric Generators JF - Heat Transfer Engineering Y1 - 2019 U6 - https://doi.org/10.1080/01457632.2018.1474588 SN - 0145-7632 SN - 1521-0537 VL - 40 IS - 17-18 SP - 1442 EP - 1450 PB - Taylor & Francis ER - TY - JOUR A1 - Guo, Y. A1 - Do, H. A1 - Ruess, Martin T1 - Isogeometric stability analysis of thin shells: From simple geometries to engineering models JF - International Journal for Numerical Methods in Engineering Y1 - 2019 U6 - https://doi.org/10.1002/nme.6020 SN - 1097-0207 VL - 118 IS - 8 SP - 433 EP - 458 PB - Wiley ER - TY - JOUR A1 - Benim, Ali Cemal A1 - Pfeiffelmann, Björn A1 - Ocłoń, Paweł A1 - Taler, Jan T1 - Computational investigation of a lifted hydrogen flame with LES and FGM JF - Energy Y1 - 2019 U6 - https://doi.org/10.1016/j.energy.2019.02.133 SN - 0360-5442 VL - 173 SP - 1172 EP - 1181 PB - Elsevier ER - TY - JOUR A1 - Biedermann, Till M. A1 - Czeckay, Pasquale A1 - Geyer, Thomas F. A1 - Kameier, Frank A1 - Paschereit, Christian O. T1 - Effect of Inflow Conditions on the Noise Reduction Through Leading Edge Serrations JF - AIAA Journal Y1 - 2019 U6 - https://doi.org/10.2514/1.j057831 SN - 1533-385X VL - 57 IS - 9 SP - 4104 EP - 4109 PB - ARC ER - TY - JOUR A1 - Bhattacharyya, Suvanjan A1 - Gobinda Das, Sampad A1 - Chattopadhyay, Himadri A1 - Benim, Ali Cemal A1 - Moghimi, M. A. T1 - Transport Phenomenon of Simultaneously Developing Flow and Heat Transfer in Twisted Sinusoidal Wavy Microchannel under Pulsating Inlet Flow Condition JF - E3S Web of Conferences Y1 - 2019 U6 - https://doi.org/10.1051/e3sconf/201912801011 VL - 128 PB - edp sciences ER - TY - JOUR A1 - Biedermann, Till M. A1 - Kameier, F. A1 - Paschereit, C. O. T1 - Successive Aeroacoustic Transfer of Leading Edge Serrations From Single Airfoil to Low-Pressure Fan Application JF - Journal of Engineering for Gas Turbines and Power KW - ISAVE Y1 - 2019 U6 - https://doi.org/10.1115/1.4044362 VL - 141 IS - 10 PB - ASME ER - TY - JOUR A1 - Deckert, Carsten A1 - Schomaker, Rahel M. T1 - Cultural Impacts on National Innovativeness: Not Every Cultural Dimension Is Equal JF - Cross-Cultural Research Y1 - 2019 U6 - https://doi.org/10.1177/1069397118799700 VL - 53 IS - 2 SP - 186 EP - 214 PB - sage journals ER - TY - JOUR A1 - Bhattacharyya, Suvanjan A1 - Chattopadhyay, Himadri A1 - Guin, Anindya A1 - Benim, Ali Cemal T1 - Investigation of Inclined Turbulators for Heat Transfer Enhancement in a Solar Air Heater JF - Heat Transfer Engineering Y1 - 2019 U6 - https://doi.org/10.1080/01457632.2018.1474593 VL - 40 IS - 17/18 SP - 1451 EP - 1460 PB - Taylor & Francis ER - TY - JOUR A1 - Deckert, Carsten T1 - Spannungsfelder der Teamkreativität: Wie Teamklima und -kontext zur Kreativität beitragen JF - Ideen und Innovationsmanagement N2 - Dieser Beitrag untersucht die Spannungsfelder der Teamkreativität. Die Spannungsfelder basieren auf einer grundlegenden Spannung aus Originalität und Effektivität, die der Standarddefinition der Kreativität zugrunde liegt. Es lassen sich auf Basis des Teamklimas und -kontextes Spannungsfelder hinsichtlich Konformität, Konsens und Kohäsion identifizieren. Mit Bezug zur Konformität müssen Teams ein positives Spannungsfeld aus der Unterstützung für Innovation und Aufgabenorientierung erreichen, um gleichzeitig Experimentierfreude zu fördern und hohe Qualitätsansprüche zu erzielen. Konsens entsteht im Spannungsfeld aus konstruktivem Konflikt und partizipatorischer Entscheidungsfindung. Bei der Kohäsion besteht eine Spannung zwischen der Teamidentität (Geborgenheit) und den individuellen Identitäten der Teammitglieder (Diversität). Der Beitrag beschreibt, wie diese drei Spannungsfelder zusammenarbeiten, wenn außergewöhnliche Kreativität in Teams entsteht. KW - Teamwork KW - Teamkreativität Y1 - 2019 SN - 2198-3143 IS - 4 SP - 116 EP - 120 ER - TY - JOUR A1 - Baier, André A1 - Neef, Matthias T1 - Studierende lehren und lernen sozial-ökologische Verantwortung JF - Die Neue Hochschule KW - Verantwortung Y1 - 2019 VL - 60 IS - 5 SP - 8 EP - 11 ER - TY - JOUR A1 - Kretschmar, Dominik A1 - Niemann, Jörg A1 - Deckert, Carsten T1 - Digitalisierungsindex zur prozessnahen Analyse mittelständischer Unternehmen JF - ZWF Zeitschrift für wirtschaftlichen Fabrikbetrieb Y1 - 2019 U6 - https://doi.org/10.3139/104.112064 SN - 0947-0085 VL - 114 IS - 4 SP - 213 EP - 218 PB - Hanser ER - TY - JOUR A1 - Deckert, Carsten A1 - Görs, Nadine T1 - Transport carbon footprint in the german courier, express and parcel industry (CEP industry) JF - Sustainability Management Forum | NachhaltigkeitsManagementForum Y1 - 2019 U6 - https://doi.org/10.1007/s00550-018-0471-1 VL - 27 IS - 1 SP - 23 EP - 30 PB - Springer ER -