TY  - CHAP
A1  - Rosin, Julia
A1  - Henneböhl, Benedickt
A1  - Butenweg, Christoph
T1  - Global buckling analysis of cylindrical liquid storage tanks under earthquake loading
T2  - 2nd European Conference on Earthquake Engineering and Seismology 2014 (2nd ECEES) : joint event of the 15th European Conference on Earthquake Engineering and the 34th General Assembly of the European Seismological Commission : Istanbul, Turkey, 25-29 August 2014 / European Association for Earthquake Engineering (EAEE) ; Vol. 6
Y1  - 2014
SN  - 978-1-5108-1021-1
SP  - 5270
EP  - 5281
PB  - Curran Associates, Inc.
CY  - Red Hook, NY
ER  - 
TY  - CHAP
A1  - Rosin, Julia
A1  - Kubalski, Thomas
A1  - Butenweg, Christoph
T1  - Seismic Design of cylindrical liquid storage tanks
T2  - Seismic design of industrial facilities : proceedings of the International Conference on Seismic Design of Industrial Facilities (SeDIF-Conference) ; [Aachen, 26. - 27. September 2013] / Chair of Structural Statics and Dynamics, RWTH Aachen. Sven Klinkel ..., ed.
Y1  - 2014
SN  - 978-3-658-02810-7 (E-Book) ; 978-3-658-02809-1 (Print)
U6  - https://doi.org/10.1007/978-3-658-02810-7_36
SP  - 429
EP  - 440
PB  - Springer Vieweg
CY  - Wiesbaden
ER  - 
TY  - CHAP
A1  - Rosin, Julia
A1  - Kubalski, Thomas
A1  - Butenweg, Christoph
ED  - Klinkel, Sven
ED  - Butenweg, Christoph
ED  - Lin, Gao
ED  - Holtschoppen, Britta
T1  - Seismic isolation of cylindrical liquid storage tanks
T2  - Seismic design of industrial facilities
N2  - Seismic excited liquid filled tanks are subjected to extreme loading due to hydrodynamic pressures, which can lead to nonlinear stability failure of the thinwalled cylindrical tanks, as it is known from past earthquakes. A significant reduction of the seismically induced loads can be obtained by the application of base isolation systems, which have to be designed carefully with respect to the modified hydrodynamic behaviour of the tank in interaction with the liquid. For this reason a highly sophisticated fluid-structure interaction model has to be applied for a realistic simulation of the overall dynamic system. In the following, such a model is presented and compared with the results of simplified mathematical models for rigidly supported tanks. Finally, it is examined to what extent a simple mechanical model can represent the behaviour of a base isolated tank in case of seismic excitation
Y1  - 2013
SN  - 978-3-658-02810-7
SN  - 978-3-658-02809-1
SN  - 978-3-658-14037-3
U6  - https://doi.org/10.1007/978-3-658-02810-7_36
N1  - International Conference on Seismic Design of Industrial Facilities, Aachen, Germany, 26.-27.09.2013.
https://sedif-conference.jimdofree.com/
SP  - 429
EP  - 440
PB  - Springer Vieweg
CY  - Wiesbaden
ER  - 
TY  - CHAP
A1  - Rosin, Julia
A1  - Kubalski, Thomas
A1  - Butenweg, Christoph
T1  - Modellierung eines basisisolierten, zylindrischen Flüssigkeitstanks aus Stahl
T2  - 13. D-A-CH Tagung für Erdbebeningenieurwesen und Baudynamik (D-A-CH 2013) : 29.-30. August 2013, Wien, Österreich
Y1  - 2013
SP  - 1
EP  - 10
ER  - 
TY  - RPRT
A1  - Rosin, Julia
A1  - Taddei, Francesca
A1  - Schmitt, Timo
A1  - Butenweg, Christoph
T1  - Erdbebenschäden in der Emilia Romagna, Norditalien : DGEB-Erkundungsreise 1.6. - 4.6.2012 / C. Butenweg (Hrsg.) (DGEB-Publikation ; Nr. 15)
Y1  - 2013
SN  - 3-930108-11-9
PB  - DGEB
CY  - Aachen
ER  - 
TY  - JOUR
A1  - Ross, Jillian
A1  - Plummer, Simon M.
A1  - Rode, Anja
A1  - Scheer, Nico
A1  - Bower, Conrad C.
A1  - Vogel, Ortwin
A1  - Henderson, Colin J.
A1  - Wolf, C. Roland
A1  - Elcombe, Clifford R.
T1  - Human constitutive androstane receptor (CAR) and pregnane X receptor (PXR) support the  hypertrophic but not the hyperplastic response to the murine nongenotoxic hepatocarcinogens phenobarbital and chlordane in vivo
JF  - Toxicological Sciences
N2  - Mouse nongenotoxic hepatocarcinogens phenobarbital (PB) and chlordane induce hepatomegaly characterized by hypertrophy and hyperplasia. Increased cell proliferation is implicated in the mechanism of tumor induction. The relevance of these tumors to human health is unclear. The xenoreceptors, constitutive androstane receptors (CARs), and pregnane X receptor (PXR) play key roles in these processes. Novel “humanized” and knockout models for both receptors were developed to investigate potential species differences in hepatomegaly. The effects of PB (80 mg/kg/4 days) and chlordane (10 mg/kg/4 days) were investigated in double humanized PXR and CAR (huPXR/huCAR), double knockout PXR and CAR (PXRKO/CARKO), and wild-type (WT) C57BL/6J mice. In WT mice, both compounds caused increased liver weight, hepatocellular hypertrophy, and cell proliferation. Both compounds caused alterations to a number of cell cycle genes consistent with induction of cell proliferation in WT mice. However, these gene expression changes did not occur in PXRKO/CARKO or huPXR/huCAR mice. Liver hypertrophy without hyperplasia was demonstrated in the huPXR/huCAR animals in response to both compounds. Induction of the CAR and PXR target genes, Cyp2b10 and Cyp3a11, was observed in both WT and huPXR/huCAR mouse lines following treatment with PB or chlordane. In the PXRKO/CARKO mice, neither liver growth nor induction of Cyp2b10 and Cyp3a11 was seen following PB or chlordane treatment, indicating that these effects are CAR/PXR dependent. These data suggest that the human receptors are able to support the chemically induced hypertrophic responses but not the hyperplastic (cell proliferation) responses. At this time, we cannot be certain that hCAR and hPXR when expressed in the mouse can function exactly as the genes do when they are expressed in human cells. However, all parameters investigated to date suggest that much of their functionality is maintained.
Y1  - 2010
U6  - https://doi.org/10.1093/toxsci/kfq118
SN  - 1096-0929
VL  - 116
IS  - 2
SP  - 452
EP  - 466
PB  - Oxford University Press
CY  - Oxford
ER  - 
TY  - GEN
A1  - Ross-Jones, J.
A1  - Teumer, T.
A1  - Capitain, C.
A1  - Tippkötter, Nils
A1  - Krause, M. J.
A1  - Methner, F.-J.
A1  - Rädle, M.
T1  - Analytical methods for in-line characterization of beer haze
T2  - Trends in Brewing
N2  - In most beers, producers strive to minimize haze to maximize visual appeal. To detect the formation of particulates, a measurement system for sub-micron particles is required. Beer haze is naturally occurring, composed of protein or polyphenol particles; in their early stage of growth their size is smaller than 2 µm. Microscopy analysis is time and resource intensive; alternatively, backscattering is an inexpensive option for detecting particle sizes of interest.
Y1  - 2018
N1  - Trends in Brewing, April 8 –12, 2018, Ghent, Belgium
ER  - 
TY  - JOUR
A1  - Rossi, Leonardo
A1  - Holtschoppen, Britta
A1  - Butenweg, Christoph
T1  - Official data on the economic consequences of the 2012 Emilia-Romagna earthquake: a first analysis of database SFINGE
JF  - Bulletin of Earthquake Engineering
Y1  - 2019
U6  - https://doi.org/10.1007%2Fs10518-019-00655-8
VL  - 17
IS  - 9
SP  - 4855
EP  - 4884
PB  - Springer
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Rossi, Leonardo
A1  - Parisi, Davide
A1  - Casari, Chiara
A1  - Montanari, Luca
A1  - Ruggieri, Gabriella
A1  - Holtschoppen, Britta
A1  - Butenweg, Christoph
T1  - Empirical Data about Direct Economic Consequences of Emilia-Romagna 2012 Earthquake on Long-Span-Beam Buildings
JF  - Earthquake Spectra
Y1  - 2019
U6  - https://doi.org/10.1193/100118EQS224DP
SN  - 1944-8201
VL  - 35
IS  - 4
SP  - 1979
EP  - 2001
ER  - 
TY  - JOUR
A1  - Rossi, Leonardo
A1  - Stupazzini, Marco
A1  - Parisi, Davide
A1  - Holtschoppen, Britta
A1  - Ruggieri, Gabriella
A1  - Butenweg, Christoph
T1  - Empirical fragility functions and loss curves for long-span-beam buildings based on the 2012 Emilia-Romagna earthquake official database
JF  - Bulletin of Earthquake Engineering
N2  - The 2012 Emilia-Romagna earthquake, that mainly struck the homonymous Italian region provoking 28 casualties and damage to thousands of structures and infrastructures, is an exceptional source of information to question, investigate, and challenge the validity of seismic fragility functions and loss curves from an empirical standpoint. Among the most recent seismic events taking place in Europe, that of Emilia-Romagna is quite likely one of the best documented, not only in terms of experienced damages, but also for what concerns occurred losses and necessary reconstruction costs. In fact, in order to manage the compensations in a fair way both to citizens and business owners, soon after the seismic sequence, the regional administrative authority started (1) collecting damage and consequence-related data, (2) evaluating information sources and (3) taking care of the cross-checking of various reports. A specific database—so-called Sistema Informativo Gestione Europa (SFINGE)—was devoted to damaged business activities. As a result, 7 years after the seismic events, scientists can rely on a one-of-a-kind, vast and consistent database, containing information about (among other things): (1) buildings’ location and dimensions, (2) occurred structural damages, (3) experienced direct economic losses and (4) related reconstruction costs. The present work is focused on a specific data subset of SFINGE, whose elements are Long-Span-Beam buildings (mostly precast) deployed for business activities in industry, trade or agriculture. With the available set of data, empirical fragility functions, cost and loss ratio curves are elaborated, that may be included within existing Performance Based Earthquake Engineering assessment toolkits.
KW  - Empirical fragility functions
KW  - Empirical consequence curves
KW  - Precast buildings
KW  - Emilia-Romagna earthquake
KW  - PBEE
Y1  - 2019
U6  - https://doi.org/10.1007/s10518-019-00759-1
SN  - 1573-1456
VL  - 18
SP  - 1693
EP  - 1721
PB  - Springer Nature
ER  - 
TY  - JOUR
A1  - Rossi, Leonardo
A1  - Winands, Mark H. M.
A1  - Butenweg, Christoph
ED  - Zhang, Jessica
T1  - Monte Carlo Tree Search as an intelligent search tool in structural design problems
JF  - Engineering with Computers : An International Journal for Simulation-Based Engineering
N2  - Monte Carlo Tree Search (MCTS) is a search technique that in the last decade emerged as a major breakthrough for Artificial Intelligence applications regarding board- and video-games. In 2016, AlphaGo, an MCTS-based software agent, outperformed the human world champion of the board game Go. This game was for long considered almost infeasible for machines, due to its immense search space and the need for a long-term strategy. Since this historical success, MCTS is considered as an effective new approach for many other scientific and technical problems. Interestingly, civil structural engineering, as a discipline, offers many tasks whose solution may benefit from intelligent search and in particular from adopting MCTS as a search tool. In this work, we show how MCTS can be adapted to search for suitable solutions of a structural engineering design problem. The problem consists of choosing the load-bearing elements in a reference reinforced concrete structure, so to achieve a set of specific dynamic characteristics. In the paper, we report the results obtained by applying both a plain and a hybrid version of single-agent MCTS. The hybrid approach consists of an integration of both MCTS and classic Genetic Algorithm (GA), the latter also serving as a term of comparison for the results. The study’s outcomes may open new perspectives for the adoption of MCTS as a design tool for civil engineers.
KW  - Monte Carlo Tree Search
KW  - Structural design
KW  - Artificial intelligence
KW  - Civil engineering
KW  - Genetic algorithm
Y1  - 2022
U6  - https://doi.org/10.1007/s00366-021-01338-2
SN  - 1435-5663
SN  - 0177-0667
VL  - 38
IS  - 4
SP  - 3219
EP  - 3236
PB  - Springer Nature
CY  - Cham
ER  - 
TY  - JOUR
A1  - Rost, Kathrin Dorothea
A1  - Lind, Thorsten Patric
T1  - Die Aufrechnung des Insolvenzverwalters gegen eine Insolvenzforderung nach ihrer Feststellung
JF  - Zeitschrift für das gesamte Insolvenzrecht : ZInsO
Y1  - 2012
SN  - 1615-8032
SP  - 2179
EP  - 2187
PB  - Heymanns
CY  - Köln
ER  - 
TY  - CHAP
A1  - Roth, J.
A1  - Möhring, S.
A1  - Tippkötter, Nils
T1  - Characterization and evaluation of lignocellulosic biomass 130 hydrolysates for ABE fermentation
T2  - New frontiers of biotech-processes (Himmelfahrtstagung) : 02-04 May 2016, Rhein-Mosel-Halle, Koblenz/Germany
Y1  - 2016
SP  - 130
PB  - DECHEMA
CY  - Frankfurt am Main
ER  - 
TY  - GEN
A1  - Roth, J.
A1  - Tippkötter, Nils
T1  - New Approach for Enzymatic Hydrolysis of Lignocellulose with Selective Diffusion Separation of the Monosaccharide Products
T2  - Chemie Ingenieur Technik
N2  - Enzymatic hydrolysis of lignocellulosic material plays an important role in the classical biorefinery approach. Apart from the pretreatment of the raw material, hydrolysis is the basis for the conversion of the cellulose and hemicellulose fraction into fermentable sugars. After hydrolysis, usually a solid-liquid separation takes place, in order to separate the residual plant material from the sugar-rich fraction, which can be subsequently used in a fermentation step. In order to factor out the separation step, the usage of in alginate immobilized crude cellulose fiber beads (CFBs) were evaluated. Pretreated cellulose fibers are incorporated in an alginate matrix together with the relevant enzymes. In doing so, sugars diffuse trough the alginate matrix, allowing a simplified delivery into the surrounding fluid. This again reduces product inhibition of the glucose on the enzyme catalysts. By means of standardized bead production the hydrolysis in lab scale was possible. First results show that liberation of glucose and xylose is possible, allowing a maximum total sugar yield of 75 %.
Y1  - 2016
U6  - https://doi.org/10.1002/cite.201650301
SN  - 0009-286X
SN  - 1522-2640 (eISSN)
N1  - ProcessNet-Jahrestagung 2016 und 32. DECHEMA-Jahrestagung der Biotechnologen 2016, 12. - 15. September 2016, Eurogress Aachen
VL  - 88
IS  - 9
SP  - 1237
PB  - Wiley-VCH
CY  - Weinheim
ER  - 
TY  - JOUR
A1  - Roth, Jasmine
A1  - Tippkötter, Nils
T1  - Evaluation of lignocellulosic material for butanol production using enzymatic hydrolysate medium
JF  - Cellulose Chemistry and Technology
N2  - Butanol is a promising gasoline additive and platform chemical that can be readily produced via acetone-butanolethanol (ABE) fermentation from pretreated lignocellulosic materials. This article examines lignocellulosic material from beech wood for ABE fermentation, using Clostridium acetobutylicum. First, the utilization of both C₅₋ (xylose) and C₆₋ (glucose) sugars as sole carbon source was investigated in static cultivation, using serum bottles and synthetic medium. The utilization of pentose sugar resulted in a solvent yield of 0.231 g·g_sugar⁻¹, compared to 0.262 g·g_sugar⁻¹ using hexose. Then, the Organosolv pretreated crude cellulose fibers (CF) were enzymatically decomposed, and the resulting hydrolysate medium was analyzed for inhibiting compounds (furans, organic acids, phenolics) and treated with ionexchangers for detoxification. Batch fermentation in a bioreactor using CF hydrolysate medium resulted in a total solvent yield of 0.20 gABE·g_sugar⁻¹.
Y1  - 2016
VL  - 50
IS  - 3-4
SP  - 405
EP  - 410
PB  - Editura Academiei Romane
CY  - Bukarest
ER  - 
TY  - GEN
A1  - Rothkranz, Berit
A1  - Krafft, Simone
A1  - Tippkötter, Nils
T1  - Media optimization for sustainable fuel production: How to produce biohydrogen from renewable resources with Thermotoga neapolitana
T2  - Chemie Ingenieur Technik
N2  - Hydrogen is playing an increasingly important role in research and politics as an energy carrier of the future. Since hydrogen has commonly been produced from methane by steam reforming, the need for climate-friendly, alternative production routes is emerging. In addition to electrolysis, fermentative routes for the production of so-called biohydrogen are "green" alternatives. The application of microorganisms offers the advantage of sustainable production from renewable resources using easily manageable technologies. In this project, the hyperthermophilic, anaerobic microorganism Thermotoga neapolitana is used for the productio nof biohydrogen from renewable resources. The enzymatically hydrolyzed resources were used in fermentation leading to yield coefficients of 1.8 mole H₂ per mole glucose when using hydrolyzed straw and ryegrass supplemented with medium, respectively. These results are similar to the hydrogen yields when using Thermotoga basal medium with glucose (TBGY) as control group. In order to minimize the supplementation of the hydrolysate and thus increase the economic efficiency of the process, the essential media components were identified. The experiments revealed NaCl, KCl, and glucose as essential components for cell growth as well as biohydrogen production. When excluding NaCl, a decrease of 96% in hydrogen production occured.
Y1  - 2022
U6  - https://doi.org/10.1002/cite.202255305
SN  - 0009-286X
SN  - 1522-2640 (eISSN)
N1  - ProcessNet and DECHEMA‐BioTechNet Jahrestagungen 2022 together with 13th ESBES Symposium 2022, 12. - 15. September 2022, Eurogress Aachen
VL  - 94
IS  - 9
SP  - 1298
EP  - 1299
PB  - Wiley-VCH
CY  - Weinheim
ER  - 
TY  - THES
A1  - Rouenhoff, Saskia
T1  - Blind – invisible connection : ein Spiel zur kritischen
Auseinandersetzung mit den sozialen Medien.
N2  - Im Computerspiel „blind – invisible connection“ taucht der Spieler in eine Fantasiewelt ein, die die sozialen Medien widerspiegelt und von einer Maschine beherrscht wird. Um zu erfahren, was in dieser Welt geschehen ist, muss die Geschichte Schritt für Schritt erspielt und wie ein Puzzle zusammengesetzt werden. Dabei interagieren die Spieler:innen mittels Dialogen mit den Bewohner:innen der Fantasiewelt und lösen Rätsel, die die Geschichte enthüllen. Durch Analogien zwischen der Fantasiewelt und den sozialen Medien wird die Funktionsweise und der Einfluss der Plattformen auf die Menschen und die Gesellschaft verdeutlicht. So wird eine Reflexion des eigenen Umgangs mit den sozialen Medien angeregt und Gesprächsstoff für Diskussionen unter den Spieler:innen und Mitmenschen geliefert.
KW  - Spiel
KW  - Computerspiel
KW  - App
KW  - Geschichte
KW  - Soziale Medien
Y1  - 2022
PB  - FH Aachen
CY  - Aachen
ER  - 
TY  - CHAP
A1  - Rousseau, Alain
A1  - Kern, Alexander
T1  - How to deal with environmental risk in IEC 62305-2
T2  - 2014 International Conference on Lightning Protection (ICLP), Shanghai, China
N2  - The 2nd edition of the lightning risk management
standard (IEC 62305-2) considers structures, which may
endanger environment. In these cases, the loss is not limited to
the structure itself, which is valid for usual structures. In the past
(Edition 1) this danger was simply taken into account by a special
hazard factor, multiplying the existing risk for the structure with
a number. Now, in the edition 2, we add to the risk for the
structure itself a “second risk” due to the losses outside the
structure. The losses outside can be treated independently from
what occurs inside. This is a major advantage to analyze the risk
for sensitive structures, like chemical plants, nuclear plants, or
structures containing explosives, etc. In this paper, the existing
procedure given by the European version EN 62305-2 Ed.2 is
further developed and applied to a few structures.
Y1  - 2014
SP  - 521
EP  - 527
ER  - 
TY  - JOUR
A1  - Rupp, Matthias
A1  - Handschuh, Nils
A1  - Rieke, Christian
A1  - Kuperjans, Isabel
T1  - Contribution of country-specific electricity mix and charging time to environmental impact of battery electric vehicles: A case study of electric buses in Germany
JF  - Applied Energy
Y1  - 2019
U6  - https://doi.org/10.1016/j.apenergy.2019.01.059
SN  - 0306-2619
VL  - 237
SP  - 618
EP  - 634
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - CHAP
A1  - Rupp, Matthias
A1  - Kuperjans, Isabel
A1  - Schulze, Sven
ED  - Berns, Karsten
T1  - Energetische und ökologische Bewertung hybrider Antriebe im städtischen Busverkehr
T2  - Commercial vehicle technology 2016 : proceedings of the 4th Commercial Vehicle Technology Symposium (CVT 2016), March 8-10, 2016, University of Kaiserslautern, Kaiserslautern, Germany
N2  - In Anbetracht weltweit zunehmend strengerer klimapolitischer
Ziele steigt auch der Druck für Nutzfahrzeughersteller, effizientere und umweltfreundlichere
Technologien zu entwickeln. Den Blick bei der Bewertung dieser
ausschließlich auf die Fahrzeugnutzung zu richten, ist längst nicht mehr zufriedenstellend.
Im Rahmen dieser Analyse wird ein gegenwärtig auf dem Markt erwerblicher
und in deutschen Städten bereits seit Jahren betriebener Hybridbus
energetisch und ökologisch mit einem konventionell angetriebenen, nahezu baugleichen
Modell entlang des Lebensweges bewertet.
Nach Definition von Ziel und Untersuchungsrahmen wird ein Überblick auf bereits
durchgeführte Lebenszyklusanalysen zu Hybridbussen im Stadtverkehr gegeben
und Schlussfolgerungen für die anschließende Analyse abgeleitet. Diese
wird im Rahmen einer energetischen und ökologischen Bewertung beider Produktsysteme
anhand der Parameter "Primärenergieeinsatz" und "CO2äq Emissionen"
praktiziert. Der Fahrzeugrumpf beider Fahrzeuge des gleichen Modells
wird dabei als einheitlich angenommen, sodass bei dem Vergleich der Herstellung
vereinfacht nur die sich unterscheidenden Komponenten des Antriebstranges
berücksichtigt werden. Die Resultate der Wirkungsabschätzung werden als
Differenz des Hybridbusses gegenüber dem Referenzfahrzeug über die einzelnen
Lebenszyklusphasen dargestellt. Schließlich werden Prognosen getroffen, ab
welcher Strecke die bei der Herstellung erzeugten höheren CO2äq Emissionen
des Hybridantriebstranges gegenüber dem Referenzmodell ausgeglichen werden.
Y1  - 2016
SP  - 227
EP  - 237
PB  - Shaker
CY  - Aachen
ER  -