TY  - CHAP
A1  - Meliß, Michael
A1  - Schwarzer, Klemens
A1  - Späte, F.
A1  - Neskakis, A.
A1  - Buck, H.
T1  - Die Arbeitsgemeinschaft Solar Nordrhein-Westfalen, Schwerpunkt B: Dezentrale Energietechnologien
T2  - Energie und unsere Umwelt. 8. Internationales Sonnenforum '92, 30. Juni - 3. Juli 1992. Bd. 2
Y1  - 1992
SP  - 1439
EP  - 1444
PB  - DGS-Sonnenenergie-Verl.
CY  - München
ER  - 
TY  - CHAP
A1  - Meliß, Michael
A1  - Späte, F.
T1  - The "Summerschool Renewable Energies" at the Fachhochschule Aachen, Abteilung Jülich/Germany
T2  - Harmony with nature : proceedings / ISES Solar World Congress, Budapest 1993. International Solar Energy Society, Hungarian Section (H-ISES); Hungarian Solar Energy Society (HSES). Vol. 1: Energy policy, environment and education
Y1  - 1993
SP  - 371
EP  - 376
PB  - Hungarian Energy Society
CY  - Budapest
ER  - 
TY  - CHAP
A1  - Meliß, Michael
A1  - Späte, Frank
T1  - Solar-Campus Jülich - an interdisciplinary project
T2  - EuroSun '96 ; 10. Internationales Sonnenforum : proceedings. Bd 3
Y1  - 1996
SP  - 1281
EP  - 1285
PB  - DGS-Sonnenenergie
CY  - München
ER  - 
TY  - CHAP
A1  - Meliß, Michael
A1  - Späte, Frank
A1  - Lange, Harald
T1  - The Solar-Campus Jülich - an interdisciplinary project
T2  - Building a new century. 5th Conference on Solar Architecture and Design, Bonn, 27th of May 1998. Ed. by Eurosolar e.V. Ed. by Irm Pontenagel.
Y1  - 1999
SN  - 3-933745-03-9
SP  - 382
EP  - 387
PB  - Eurosolar-Verl.
CY  - Bonn
ER  - 
TY  - CHAP
A1  - Merkens, Torsten
A1  - Hebel, Christoph
T1  - Sharing mobility concepts – flexible, sustainable, smart
T2  - Proceedings of the 1st UNITED – Southeast Asia Automotive Interest Group (SAIG) International Conference
KW  - Sharing mobility
KW  - electro mobility
KW  - business models
KW  - mobility behaviour
Y1  - 2021
SN  - 978-3-902103-94-9
N1  - 1st UNITED-SAIG International Conference, 21-22 APR 2021, Chulalongkorn University, Thailand
SP  - 43
EP  - 44
ER  - 
TY  - CHAP
A1  - Merten, Sabine
A1  - Conrad, Thorsten
A1  - Kämper, Klaus-Peter
A1  - Picard, Antoni
A1  - Schütze, Andreas
T1  - Virtual Technology Labs - an efficient tool for the preparation of hands-on-MEMS-courses in training foundries
N2  - Hands-on-training in high technology areas is usually limited due to the high cost for lab infrastructure and equipment. One specific example is the field of MEMS, where investment and upkeep of clean rooms with microtechnology equipment is either financed by production or R&D projects greatly reducing the availability for education purposes. For efficient hands-on-courses a MEMS training foundry, currently used jointly by six higher education institutions, was established at FH Kaiserslautern. In a typical one week course, students manufacture a micromachined pressure sensor including all lithography, thin film and packaging steps. This compact and yet complete program is only possible because participants learn to use the different complex machines in advance via a Virtual Training Lab (VTL). In this paper we present the concept of the MEMS training foundry and the VTL preparation together with results from a scientific evaluation of the VTL over the last three years.
KW  - Virtuelles Laboratorium
KW  - Virtuelles Labor
KW  - Hand-on-training
KW  - Virtual Technology Lab
KW  - MEMS ; education and training foundry
Y1  - 2006
ER  - 
TY  - CHAP
A1  - Merten, Sabine
A1  - Kämper, Klaus-Peter
A1  - Brill, Manfred
A1  - Picard, Antoni
A1  - Cassel, Detlev
A1  - Jentsch, Andreas
A1  - Rollwa, Markus
T1  - Virtuelle Sensor-Fertigung: Hightech mit LabVIEW
N2  - Eine neue Generation von Praktika an Hochschulen wächst heran. Moderne Wege beim Verstehen und Erlernen naturwissenschaftlicher Zusammenhänge sowie industrieller Fertigungsprozesse sind gefordert. Das Technologiepraktikum „Virtuelle Sensor- Fertigung“, entwickelt im Verbundprojekt INGMEDIA an den Fachhochschulen Aachen und Zweibrücken, trägt als neuartiges Lern- und Lehrmodul dieser Forderung Rechnung. Die Studierenden lernen einen vollständigen Fertigungsprozess mit Hilfe von virtuellen, in LabVIEW programmierten Maschinen kennen, bevor sie die reale Prozesskette im Reinraum durchführen.
N2  - A new generation of university laboratory courses is presently being developed. Modern concepts for the understanding and learning of applied science and industrial fabrication processes are required. The technology course “Fabrication of a microsensor”, developed by the Universities of Applied Sciences Aachen and Zweibrücken in the joint research project INGMEDIA, represents a new approach towards education in high technology production. The students learn the operation of the complex microfabrication line with the help of virtual fabrication machines, programmed in LabVIEW, before they perform the actual process in a genuine clean room.
KW  - LabVIEW
KW  - Virtuelle Sensor-Fertigung
KW  - Fertigungsprozess
KW  - virtuelle Maschinen
KW  - virtual sensor fabrication
KW  - manufacturing process
KW  - virtual
KW  - virtual machines
Y1  - 2003
ER  - 
TY  - CHAP
A1  - Merten, Sabine
A1  - Kämper, Klaus-Peter
A1  - Brill, Manfred
A1  - Picard, Antoni
A1  - Cassel, Detlev
A1  - Jentsch, Andreas
A1  - Rollwa, Markus
T1  - Vom virtuellen Wafer zum realen Drucksensor
N2  - Das Technologiepraktikum „Virtuelle Sensor-Fertigung“ ist ein Beispiel für die medientechnische Aufbereitung von Lern- und Lehrmaterial unter didaktischen Gesichtspunkten. Studierende lernen einen Fertigungsprozess mit Hilfe von virtuellen Maschinen kennen, bevor sie die reale Prozesskette im Laborpraktikum im Reinraum durchführen.
N2  - The technology course “Fabrication of a microsensor” represents a multimediabased approach towards education in high technology production in consideration of didactical aspects. The students learn the operation of a complex microfabrication line with the help of virtual fabrication machines before they perform the actual process in a hands-on training in an actual clean room.
KW  - Virtuelle Maschine
KW  - VM
KW  - Virtuelle Sensor-Fertigung
KW  - virtual fabrication of a microsensor
Y1  - 2003
ER  - 
TY  - CHAP
A1  - Mertens, Alexander
A1  - Brauner, Philipp
A1  - Baier, Ralph
A1  - Brillowski, Florian
A1  - Dammers, Hannah
A1  - van Dyck, Marc
A1  - Kong, Iris
A1  - Königs, Peter
A1  - Kordtomeikel, Frauke
A1  - Liehner, Gian Luca
A1  - Pütz, Sebastian
A1  - Rodermann, Niklas
A1  - Schaar, Anne Kathrin
A1  - Steuer-Dankert, Linda
A1  - Vervier, Luisa
A1  - Wlecke, Shari
A1  - Gries, Thomas
A1  - Leicht-Scholten, Carmen
A1  - Nagel, Saskia K.
A1  - Piller, Frank T.
A1  - Schuh, Günther
A1  - Ziefle, Martina
A1  - Nitsch, Verena
ED  - Michael, Judith
ED  - Pfeiffer, Jérôme
ED  - Wortmann, Andreas
T1  - Modelling Human Factors in Cyber Physical Production Systems by the Integration of Human Digital Shadows
T2  - Modellierung 2022 Satellite Events
N2  - The future of industrial manufacturing and production will increasingly manifest in the form of cyber-physical production systems. Here, Digital Shadows will act as mediators between the physical and digital world to model and operationalize the interactions and relationships between different entities in production systems. Until now, the associated concepts have been primarily pursued and implemented from a technocentric perspective, in which human actors play a subordinate role, if they are considered at all. This paper outlines an anthropocentric approach that explicitly considers the characteristics, behavior, and traits and states of human actors in socio-technical production systems. For this purpose, we discuss the potentials and the expected challenges and threats of creating and using Human Digital Shadows in production.
KW  - human digital shadow
KW  - cyber physical production system
KW  - human factors
Y1  - 2022
U6  - https://doi.org/10.18420/modellierung2022ws-018
N1  - Modellierung 2022, 27. Juni - 01. Juli 2022, Hamburg, Deutschland
SP  - 147
EP  - 149
PB  - GI Gesellschaft für Informatik
CY  - Bonn
ER  - 
TY  - CHAP
A1  - Mertens, Alexander
A1  - Pütz, Sebastian
A1  - Brauner, Philipp
A1  - Brillowski, Florian Sascha
A1  - Buczak, Nadine
A1  - Dammers, Hannah
A1  - van Dyck, Marc
A1  - Kong, Iris
A1  - Königs, Peter
A1  - Kortomeikel, Frauke Carole
A1  - Rodemann, Niklas
A1  - Schaar, Anne Kathrin
A1  - Steuer-Dankert, Linda
A1  - Wlecke, Shari
A1  - Gries, Thomas
A1  - Leicht-Scholten, Carmen
A1  - Nagel, Saskia K.
A1  - Piller, Frank Thomas
A1  - Schuh, Günther
A1  - Ziefle, Martina
A1  - Nitsch, Verena
T1  - Human digital shadow: Data-based modeling of users and usage in the internet of production
T2  - 14th Conference Human System Interaction Conference Proceedings
N2  - Digital Shadows as the aggregation, linkage and abstraction of data relating to physical objects are a central vision for the future of production. However, the majority of current research takes a technocentric approach, in which the human actors in production play a minor role. Here, the authors present an alternative anthropocentric perspective that highlights the potential and main challenges of extending the concept of Digital Shadows to humans. Following future research methodology, three prospections that illustrate use cases for Human Digital Shadows across organizational and hierarchical levels are developed: human-robot collaboration for manual work, decision support and work organization, as well as human resource management. Potentials and challenges are identified using separate SWOT analyses for the three prospections and common themes are emphasized in a concluding discussion.
KW  - digital shadow
KW  - cyber physical production system
KW  - user & usage
KW  - internet of production
Y1  - 2021
U6  - https://doi.org/10.1109/HSI52170.2021.9538729
N1  - 14th International Conference on Human System Interaction : 8-10 July 2021. Gdańsk, Poland
SP  - 1
EP  - 8
PB  - IEEE
ER  - 
TY  - CHAP
A1  - Mertens, Josef
T1  - Laminar leading edges: manufacturing, contamination, and operational aspects - results from the German RaWid programme
N2  - RaWid was the German national technology programme on transonic aerodynamics and supporting technologies, lasting from 1995 to 1998. One of the main topics was laminar wing development. Besides aerodynamic design work, many operational aspects were investigated. A manufacturing concept was developed to be applied to operational laminar wings and empennages. It was built in a large scale manufacturing demonstrator with the aerodynamic shape of a 1,5 m section of the A320 fin nose. Tolerances in shape and roughness fulfilled all requirements. The construction can easily be adapted to varying stiffness and strength requirements. Weight and manufacturing costs are comparable to common nose designs. The mock-up to be designed in ALTTA is based on this manufacturing principle. Another critical point is contamination of suction surfaces. Several tests were performed to investigate perforated titanium suction surfaces at realistic operational conditions: - a one year flight test with a suction plate in the stagnation area of the Airbus "Beluga" - a one year test of several suction plates in a ground test near the airport - a one year test of a working suction ground test installation at all weather conditions. No critical results were found. There is no long term suction degradation visible. Icing conditions and ground de-icing fluids used on airports did not pose severe problems. Some problems detected require only respection of weak design constraints.
KW  - Laminare Strömung
KW  - Ansaugsystem
KW  - Profilumströmung
KW  - Laminarprofil
KW  - RaWid
KW  - hybrid laminar flow
KW  - suction systems
KW  - suction structure
KW  - contamination
KW  - operational aspects
Y1  - 2000
ER  - 
TY  - CHAP
A1  - Mertens, Josef
T1  - Next steps envisaged to improve wing performance of commercial aircraft
T2  - Aerodynamic drag reduction technologies : proceedings of the CEAS/DragNet European Drag Reduction Conference, 19–21 June 2000, Potsdam, Germany. - (Notes on numerical fluid mechanics ; 76)
Y1  - 2001
SN  - 3-540-41911-X (Print)
SN  - 978-3-540-45359-8 (Elektronisch)
U6  - https://doi.org/10.1007/978-3-540-45359-8_26
SP  - 246
EP  - 255
PB  - Springer
CY  - Berlin [u.a.]
ER  - 
TY  - CHAP
A1  - Mertens, Josef
ED  - Nitsche, Wolfgang
T1  - Some important results of the technology programme RaWid
T2  - New Results in Numerical and Experimental Fluid Mechanics : Contributions to the 11th AG STAB/DGLR Symposium Berlin, Germany 1998. - Vol. 2. - (Notes on Numerical Fluid Mechanics ; 72)
Y1  - 1999
SN  - 978-3-663-10903-7 (Print)
SN  - 978-3-663-10901-3 (Elektronisch)
U6  - https://doi.org/10.1007/978-3-663-10901-3_41
SP  - 315
EP  - 322
PB  - Springer Fachmedien
CY  - Wiesbaden
ER  - 
TY  - CHAP
A1  - Meskouris, Konstantin
A1  - Butenweg, Christoph
T1  - Aktuelle Themen des Erdbebeningenieurwesens und der Baudynamik : D-A-CH-Tagung 2005 in Köln / K. Meskouris, Chr. Butenweg (Hrsg.). Organisiert von der Deutschen Gesellschaft für Erdbebeningenieurwesen und Baudynamik.
T2  - DGEB-Publikation ; 13
Y1  - 2005
SN  - 3-930108-09-7
PB  - DGEB
CY  - Aachen
ER  - 
TY  - CHAP
A1  - Meskouris, Konstantin
A1  - Butenweg, Christoph
A1  - Mistler, Michael
A1  - Kuhlmann, Wolfram
T1  - Seismic behaviour of historic masonry buildings
T2  - 7th National Congress on Mechanics : Chania, Crete, June 24 - 26, 2004 ; proceedings / ed. A. Kounadis ....
Y1  - 2004
SP  - 47
EP  - 49
PB  - Hellenic Society for Theoretical and Applied Mechanics
CY  - Chania
ER  - 
TY  - CHAP
A1  - Meskouris, Konstantin
A1  - Holler, Stefan
A1  - Butenweg, Christoph
A1  - Meiners, Daniel
T1  - A multiphase model with hypoplastic formulation of the solid phase and its application to earthquake engineering problems
T2  - Computational structural dynamics and earthquake engineering / ed. by Manolis Papadrakakis .... (Structures and infrastructures series ; 2)
Y1  - 2009
SN  - 978-0-415-45261-8
U6  - https://doi.org/10.1201/9780203881637.ch19
SP  - 293
EP  - 308
PB  - CRC Press
CY  - Boca Raton, Fla. [u.a.]
ER  - 
TY  - CHAP
A1  - Meskouris, Konstantin
A1  - Holtschoppen, Britta
A1  - Butenweg, Christoph
A1  - Rosin, Julia
T1  - Seismic analysis of liquid storage tanks
T2  - Earthquake Geology and Archaeology: Science, Society and Critical facilities : proceedings ; 2nd INQUA-IGCP 567 International Workshop on Active Tectonics, Earthquake Geology, Archaeology and Engineering ; 19-24 September 2011, Corinth (Greece) / Eds.: C. Grützner ; R. Pérez-Lopez ; T. Fernández Steeger ; I. Papanikolaou ; K. Reicherter ; P. G. Silva ; A. Vött. Volume 2
Y1  - 2011
SN  - 978-960-466-093-3
SP  - 136
EP  - 139
PB  - The Natural hazards Laboratory, National and Kapodistrian University of Athens
CY  - Athens
ER  - 
TY  - CHAP
A1  - Meskouris, Konstantin
A1  - Mistler, Michael
A1  - Butenweg, Christoph
T1  - Mauerwerksbauten unter Erdbebenbelastung
T2  - Numerische Methoden zur Problemlösung im konstruktiven Bauwesen : 34. Aachener Baustofftag ; 02. Februar 2006
Y1  - 2006
PB  - IBAC
CY  - Aachen
ER  - 
TY  - CHAP
A1  - Michel, P.
A1  - Zilligen, H.
A1  - Rosin, J.
A1  - Butenweg, Christoph
T1  - Seismisches Verhalten pfahlgegründeter Tankbauwerke
T2  - Erdbeben und bestehende Bauten : 14. D-A-C-H Tagung 20.08. - 21.08.2015, ETH Zürich. (Dokumentation / SIA ; D 0255)
Y1  - 2015
SN  - 978-3-03732-060-0
SP  - 181
EP  - 188
PB  - SGEB
CY  - Zürich
ER  - 
TY  - CHAP
A1  - Michel, Philipp
A1  - Alder, Philipp
A1  - Butenweg, Christoph
A1  - Klinkel, Sven
T1  - Berechnung der Fluid-Struktur-Interaktion für flexibel gelagerte Flüssigkeitstanks
T2  - 16. D-A-CH Tagung Erdbebeningenieurwesen & Baudynamik: 26. und 27. September 2019, Universität Innsbruck
Y1  - 2019
SN  - 978-3-200-06454-6
ER  - 
TY  - CHAP
A1  - Michel, Philipp
A1  - Butenweg, Christoph
A1  - Klinkel, Sven
T1  - Frequency Dependent Impedance Analysis of the Foundation-Soil-Systems of Onshore Wind Turbines
T2  - 16th European Conference on Earthquake Engineering, Thessaloniki, 18-21 June, 2018
Y1  - 2018
N1  - Paper No 11440
SP  - 1
EP  - 13
ER  - 
TY  - CHAP
A1  - Michel, Philipp
A1  - Rosin, Julia
A1  - Butenweg, Christoph
A1  - Klinkel, Sven
T1  - Soil-dependent earthquake spectra in the analysis of liquid-storage-tanks on compliant soil
T2  - Seismic design of industrial facilities 2020
N2  - A further development of the Added-Mass-Method allows the combined representation of the effects of both soil-structure-interaction and fluid-structure interaction on a liquid-filled-tank in one model. This results in a practical method for describing the dynamic fluid pressure on the tank shell during joint movement. The fluid pressure is calculated on the basis of the tank's eigenform and the earthquake acceleration and represented by additional masses on the shell. The bearing on compliant ground is represented by replacement springs, which are calculated dependent on the local soil composition. The influence of the shear modulus of the compliant soil is clearly visible in the pressure curves and the stress distribution in the shell. The acceleration spectra are also dependent on soil stiffness. According to Eurocode-8 the acceleration spectra are determined for fixed soil-classes, instead of calculating the accelerations for each site in direct dependence on the soil composition. This leads to unrealistic sudden changes in the system's response. Therefore, earthquake spectra are calculated for different soil models in direct dependence of the shear modulus. Thus, both the acceleration spectra and the replacement springs match the soil composition. This enables a reasonable and consistent calculation of the system response for the actual conditions at each site.
Y1  - 2020
SN  - 978-3-86359-729-0
N1  - 2nd International Conference on Seismic Design of Industrial Facilities (Aachen, Germany, March 4-5, 2020)
SP  - 245
EP  - 254
PB  - Apprimus Verlag
CY  - Aachen
ER  - 
TY  - CHAP
A1  - Milijaš, Aleksa
A1  - Šakić, Bogdan
A1  - Marinković, Marko
A1  - Butenweg, Christoph
ED  - Papadrakakis, Manolis
ED  - Fragiadakis, Michalis
T1  - Experimental investigation of behaviour of masonry infilled RC frames under out-of-plane loading
T2  - Proceedings of COMPDYN 2021
N2  - Masonry infills are commonly used as exterior or interior walls in reinforced concrete (RC) frame structures and they can be encountered all over the world, including earthquake prone regions. Since the middle of the 20th century the behaviour of these non-structural elements under seismic loading has been studied in numerous experimental campaigns. However, most of the studies were carried out by means of in-plane tests, while there is a lack of out-of-plane experimental investigations. In this paper, the out-of-plane tests carried out on full scale masonry infilled frames are described. The results of the out-of-plane tests are presented in terms of force-displacement curves and measured out-of-plane displacements. Finally, the reliability of existing analytical approaches developed to estimate the out-of-plane strength of masonry infills is examined on presented experimental results.
KW  - Seismic loading
KW  - Masonry infill
KW  - Out-of-plane load
KW  - Out-of-plane strength
Y1  - 2021
SN  - 978-618-85072-5-8
U6  - https://doi.org/10.7712/120121.8528.18914
SN  - 2623-3347
N1  - COMPDYN 2021, 28-30 June 2021, Streamed from Athens, Greece, 8th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering
SP  - 829
EP  - 846
PB  - National Technical University of Athens
CY  - Athen
ER  - 
TY  - CHAP
A1  - Milijaš, Aleksa
A1  - Šakić, Bogdan
A1  - Marinković, Marko
A1  - Butenweg, Christoph
A1  - Gams, Matija
A1  - Klinkel, Sven
ED  - Arion, Cristian
ED  - Scupin, Alexandra
ED  - Ţigănescu, Alexandru
T1  - Effects of prior in-plane damage on out-of-plane response of masonry infills with openings
T2  - The Third European Conference on Earthquake Engineering and Seismology
N2  - Masonry infill walls are the most traditional enclosure system that is still widely used in RC frame buildings all over the world, particularly in seismic active regions. Although infill walls are usually neglected in seismic design, during an earthquake event they are subjected to in-plane and out-of-plane forces that can act separately or simultaneously. Since observations of damage to buildings after recent earthquakes showed detrimental effects of in-plane and out-of-plane load interaction on infill walls, the number of studies that focus on influence of in-plane damage on out-of-plane response has significantly increased. However, most of the xperimental campaigns have considered only solid infills and there is a lack of combined in-plane and out-of-plane experimental tests on masonry infills with openings, although windows and doors strongly affect seismic performance. In this paper, two types of experimental tests on infills with window openings are presented. The first is a pure out-of-plane test and the second one is a sequential in-plane and out-of-plane test aimed at investigating the effects of existing in-plane damage on outof-plane response. Additionally, findings from two tests with similar load procedure that were carried out on fully infilled RC frames in the scope of the same project are used for comparison. Test results clearly show that window opening increased vulnerability of infills to combined seismic actions and that prevention of damage in infills with openings is of the utmost importance for seismic safety.
KW  - Seismic loading
KW  - In-plane load
KW  - Out-of-plane load
KW  - Interaction
KW  - Window opening
Y1  - 2022
SN  - 978-973-100-533-1
N1  - 3ECEES - Third European Conference on Earthquake Engineering and Seismology, September 4 – September 9, 2022, Bucharest
SP  - 2747
EP  - 2756
ER  - 
TY  - CHAP
A1  - Milkova, Kristina
A1  - Butenweg, Christoph
A1  - Dumova-Jovanoska, Elena
T1  - Methodology for development of seismic vulnerability curve for existing unreinforced Masonry buildings
T2  - Proceedings of the 17th World Conference on Earthquake Engineering
N2  - Seismic behavior of an existing unreinforced masonry building built pre-modern code, located in the City of Ohrid, Republic of North Macedonia has been investigated in this paper. The analyzed school building is selected as an archetype in an ongoing project named “Seismic vulnerability assessment of existing masonry structures in Republic of North Macedonia (SeismoWall)”. Two independent segments were included in this research: Seismic hazard assessment by creating a cite specific response spectra and Seismic vulnerability definition by creating a region - specific series of vulnerability curves for the chosen building topology. A reliable Seismic Hazard Assessment for a selected region is a crucial point for performing a seismic risk analysis of a characteristic building class. In that manner, a scenario – based method that incorporates together the knowledge of tectonic style of the considered region, the active fault characterization, the earth crust model and the historical seismicity named Neo Deterministic approach is used for calculation of the response spectra for the location of the building. Variations of the rupturing process are taken into account in the nucleation point of the rupture, in the rupture velocity pattern and in the istribution of the slip on the fault. The results obtained from the multiple scenarios are obtained as an envelope of the response spectra computed for the cite using the procedure Maximum Credible Seismic Input (MCSI). Capacity of the selected building has been determined by using nonlinear static analysis. MINEA software (SDA Engineering) was used for verification of the structural safety of the chosen unreinforced masonry structure. In the process of optimization of the number of samples, computational cost required in a Monte Carlo simulation is significantly reduced since the simulation is performed on a polynomial response surface function for prediction of the structural response. Performance point, found as the intersection of the capacity of the building and the spectra used, is chosen as a response parameter. Five levels of damage limit states based on the capacity curve of the building are defined in dependency on the yield displacement and the maximum displacement. Maximum likelihood estimation procedure is utilized in the process of vulnerability curves determination. As a result, region specific series of vulnerability curves for the chosen type of masonry structures are defined. The obtained probabilities of exceedance a specific damage states as a result from vulnerability curves are compared with the observed damages happened after the earthquake in July 2017 in the City of Ohrid, North Macedonia.
KW  - Masonry structures
KW  - Vulnerability Curves
KW  - Capacity Curve
KW  - Neo-Deterministic
KW  - Seismic Hazard
Y1  - 2020
N1  - 17th World Conference on Earthquake Engineering, Sendai, Japan, September 27 to October 2, 2021
N1  - (Die Konferenz war ursprünglich für den 13-18 September 2020 angesetzt)
ER  - 
TY  - CHAP
A1  - Milkova, Kristina
A1  - Butenweg, Christoph
A1  - Dumova-Jovanoska, Elena
T1  - Region-sensitive comprehensive procedure for determination of seismic fragility curves
T2  - 1st Croatian Conference on Earthquake Engineering 1CroCEE
N2  - Seismic vulnerability estimation of existing structures is unquestionably interesting topic of high priority, particularly after earthquake events. Having in mind the vast number of old masonry buildings in North Macedonia serving as public institutions, it is evident that the structural assessment of these buildings is an issue of great importance. In this paper, a comprehensive methodology for the development of seismic fragility curves of existing masonry buildings is presented. A scenario – based method that incorporates the knowledge of the tectonic style of the considered region, the active fault characterization, the earth crust model and the historical seismicity (determined via the Neo Deterministic approach) is used for calculation of the necessary response spectra. The capacity of the investigated masonry buildings has been determined by using nonlinear static analysis. MINEA software (SDA Engineering) is used for verification of the structural safety of the structures Performance point, obtained from the intersection of the capacity of the building and the spectra used, is selected as a response parameter. The thresholds of the spectral displacement are obtained by splitting the capacity curve into five parts, utilizing empirical formulas which are represented as a function of yield displacement and ultimate displacement. As a result, four levels of damage limit states are determined. A maximum likelihood estimation procedure for the process of fragility curves determination is noted as a final step in the proposed procedure. As a result, region specific series of vulnerability curves for structures are defined.
KW  - seismic risk
KW  - seismic vulnerability
KW  - fragility curves
KW  - masonry structures
Y1  - 2021
U6  - https://doi.org/10.5592/CO/1CroCEE.2021.158
N1  - 1st Croatian Conference on Earthquake Engineering 1CroCEE 2021, 22.–24. März 2021, University of Zagreb Faculty of Civil Engineering, Zagreb, Croatia
SP  - 121
EP  - 128
PB  - University of Zagreb
CY  - Zagreb
ER  - 
TY  - CHAP
A1  - Milkova, Kristina
A1  - Rosin, Julia
A1  - Butenweg, Christoph
A1  - Dumova-Jovanoska, Elena
T1  - Development of Seismic Vulnerability Curves for Region Specific Masonry Buildings
T2  - 16th European Conference on Earthquake Engineering, Thessaloniki, 18-21 June, 2018
Y1  - 2018
N1  - Paper No 10522
SP  - 1
EP  - 10
ER  - 
TY  - CHAP
A1  - Mirmohseni, Abdolreza
A1  - Rostamizadeh, Kobra
T1  - Quartz crystal nanobalance in conjunction with principal component analysis for  identification of volatile organic compounds
N2  - Quartz crystal nanobalance (QCN) sensors are considered as powerful masssensitive sensors to determine materials in the sub-nanogram level. In this study, a single piezoelectric quartz crystal nanobalance modified with polystyrene was employed to detect benzene, toluene, ethylbenzene and xylene (BTEX compounds). The frequency shift of the QCN sensor was found to be linear against the BTEX compound concentrations in the range about 1-45 mg l-1. The correlation coefficients for benzene, toluene, ethylbenzene, and xylene were 0.991, 0.9977, 0.9946 and 0.9971, respectively. The principal component analysis was also utilized to process the frequency response data of the single piezoelectric crystal at different times, considering to the different adsorption-desorption dynamics of BTEX compounds. Using principal component analysis, it was found that over 90% of the data variance could still be explained by use of two principal components (PC1 and PC2). Subsequently, the successful identification of benzene and toluene was possible through the principal component analysis of the transient responses of the polystyrene modified QCN sensor. The results showed that the polystyrene-modified QCN had favorable identification and quantification performances for the BTEX compounds.
KW  - Biosensor
KW  - Quartz crystal nanobalance (QCN)
KW  - BTEX compounds
KW  - principal component
Y1  - 2006
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:a96-opus-1434
ER  - 
TY  - CHAP
A1  - Mistler, M.
A1  - Butenweg, Christoph
A1  - Anthoine, A.
T1  - Evaluation of the failure criterion for masonry by homogenisation
T2  - Proceedings of the Seventh International Conference on Computational Structures Technology : [Lisbon, Portugal, 7 - 9 September 2004] / ed. by B. H. V. Topping and C.A. Mota Soares
Y1  - 2004
SN  - 0-948749-95-4
U6  - https://doi.org/10.4203/ccp.79.201
PB  - Civil-Comp Press
CY  - Stirling
ER  - 
TY  - CHAP
A1  - Mistler, Michael
A1  - Butenweg, Christoph
T1  - A seismic design procedure for masonry buildings
T2  - Proceedings of the Tenth International Conference on Civil, Structural and Environmental Engineering Computing : [Rome, Italy, 30. August - 2. September 2005] / ed. by B. H. V. Topping
Y1  - 2005
SN  - 1-905088-00-0
U6  - https://doi.org/10.4203/ccp.81.193
SP  - 465
EP  - 467
PB  - Civil-Comp Press
CY  - Stirling
ER  - 
TY  - CHAP
A1  - Miyamoto, Ko-ichiro
A1  - Suto, Takeyuki
A1  - Werner, Frederik
A1  - Wagner, Torsten
A1  - Schöning, Michael Josef
A1  - Yoshinobu, Tatsuo
T1  - Restraining the Diffusion of Photocarriers to Improve the Spatial Resolution of the Chemical Imaging Sensor
T2  - MDPI Proceedings
Y1  - 2017
U6  - https://doi.org/10.3390/proceedings1040477
N1  - Eurosensors 2017 Conference, Paris, France, 3–6 September 2017
VL  - 1
IS  - 4
ER  - 
TY  - CHAP
A1  - Mohan, Nijanthan
A1  - Groß, Rolf Fritz
A1  - Menzel, Karsten
A1  - Theis, Fabian
T1  - Opportunities and Challenges in the Implementation of Building Information Modeling for Prefabrication of Heating, Ventilation and Air Conditioning Systems in Small and Medium-Sized Contracting Companies in Germany – A Case Study
T2  - WIT Transactions on The Built Environment, Vol. 205
N2  - Even though BIM (Building Information Modelling) is successfully implemented in most of the world, it is still in the early stages in Germany, since the stakeholders are sceptical of its reliability and efficiency. The purpose of this paper is to analyse the opportunities and obstacles to implementing BIM for prefabrication. Among all other advantages of BIM, prefabrication is chosen for this paper because it plays a vital role in creating an impact on the time and cost factors of a construction project. The project stakeholders and participants can explicitly observe the positive impact of prefabrication, which enables the breakthrough of the scepticism factor among the small-scale construction companies. The analysis consists of the development of a process workflow for implementing prefabrication in building construction followed by a practical approach, which was executed with two case studies. It was planned in such a way that, the first case study gives a first-hand experience for the workers at the site on the BIM model so that they can make much use of the created BIM model, which is a better representation compared to the traditional 2D plan. The main aim of the first case study is to create a belief in the implementation of BIM Models, which was succeeded by the execution of offshore prefabrication in the second case study. Based on the case studies, the time analysis was made and it is inferred that the implementation of BIM for prefabrication can reduce construction time, ensures minimal wastes, better accuracy, less problem-solving at the construction site. It was observed that this process requires more planning time, better communication between different disciplines, which was the major obstacle for successful implementation. This paper was carried out from the perspective of small and medium-sized mechanical contracting companies for the private building sector in Germany.
KW  - building information modelling
KW  - HVAC
KW  - prefabrication
KW  - construction
KW  - small and medium scaled companies
Y1  - 2021
U6  - https://doi.org/10.2495/BIM210101
SN  - 1743-3509
N1  - 4th International Conference on Building Information Modelling (BIM) in Design, Construction and Operations, 1–3 September 2021. Santiago de Compostela, Spain
SP  - 117
EP  - 126
PB  - WIT Press
CY  - Southampton
ER  - 
TY  - CHAP
A1  - Molinnus, Denise
A1  - Hardt, Gabriel
A1  - Käver, Larissa
A1  - Willenberg, Holger S.
A1  - Poghossian, Arshak
A1  - Keusgen, Michael
A1  - Schöning, Michael Josef
T1  - Detection of Adrenaline Based on Bioelectrocatalytical System to Support Tumor Diagnostic Technology
T2  - MDPI Proceedings
Y1  - 2017
U6  - https://doi.org/10.3390/proceedings1040506
ER  - 
TY  - CHAP
A1  - Moll, Florian
A1  - Köhler, Klemens
A1  - Wolf, Martin R.
T1  - Konzeption von IT-Sicherheitslösungen unter ethischen Gesichtspunkten am Beispiel einer Monitoring-App für mobile Endgeräte
T2  - Angewandte Forschung in der Wirtschaftsinformatik 2019 : Tagungsband zur 32. AKWI-Jahrestagung
N2  - Die steigende Popularität von mobilen Endgeräten im privaten und geschäftlichen Umfeld geht mit einem Anstieg an Sicherheitslücken und somit potentiellen Angriffsflächen einher. Als ein Element der technischen und organisatorischen Maßnahmen zum Schutz eines Netzwerkes können Monitoring-Apps dienen, die unerwünschtes Verhalten und Angriffe erkennen. Die automatisierte Überwachung von Endgeräten ist jedoch rechtlich und ethisch komplex. Dies in Kombination mit einer hohen Sensibilität der Nutzer und Nutzerinnen dieser Geräte in Bezug auf Privatsphäre, kann zu einer geringen Akzeptanz und Compliance führen. Eine datenschutzrechtlich und ethisch einwandfreie Konzeption solcher Apps bereits im Designprozess führt zu höherer Akzeptanz und verbessert so die Effizienz. Diese Analyse beschreibt Möglichkeiten zur Umsetzung.
Y1  - 2019
SN  - 978-3-944330-62-4
SP  - 61
EP  - 72
PB  - mana-Buch
CY  - Heide
ER  - 
TY  - CHAP
A1  - Morandi, Paolo
A1  - Butenweg, Christoph
A1  - Breis, Khaled
A1  - Beyer, Katrin
A1  - Magenes, Guido
ED  - Arion, Cristian
ED  - Scupin, Alexandra
ED  - Ţigănescu, Alexandru
T1  - Behaviour factor q for the seismic design of URM buildings
T2  - The Third European Conference on Earthquake Engineering and Seismology
N2  - Recent earthquakes showed that low-rise URM buildings following codecompliant seismic design and details behaved in general very well without substantial damages. Although advances in simulation tools make nonlinear calculation methods more readily accessible to designers, linear analyses will still be the standard design method for years to come. The present paper aims to improve the linear seismic design method by providing a proper definition of the q-factor of URM buildings. Values of q-factors are derived for low-rise URM buildings with rigid diaphragms, with reference to modern structural configurations realized in low to moderate seismic areas of Italy and Germany. The behaviour factor components for deformation and energy dissipation capacity and for overstrength due to the redistribution of forces are derived by means of pushover analyses. As a result of the investigations, rationally based values of the behaviour factor q to be used in linear analyses in the range of 2.0 to 3.0 are proposed.
KW  - unreinforced masonry buildings
KW  - modern constructions
KW  - seismic design
KW  - linear elastic analysis;
KW  - behaviour factor q
Y1  - 2022
SN  - 978-973-100-533-1
N1  - 3ECEES - Third European Conference on Earthquake Engineering and Seismology, September 4 – September 9, 2022, Bucharest
SP  - 1184
EP  - 1194
ER  - 
TY  - CHAP
A1  - Moreno, Lia
A1  - Dosev, D.
A1  - Bratov, A.
A1  - Dominguez, C.
A1  - Schöning, Michael Josef
A1  - Kloock, Joachim P.
T1  - Effect of electrical properties of the surrounding medium on the response of an interdigitated electrode array with chalcogenide glass film
T2  - XX Eurosensors : 20th anniversary ; Göteborg, Sweden, 17 - 20 September 2006 ; [proceedings]. - Vol. 1
Y1  - 2006
SN  - 978-91-631-9280-7
N1  - Paper number: T1A-P22
SP  - 384
EP  - 385
CY  - Göteborg
ER  - 
TY  - CHAP
A1  - Moritz, Werner
A1  - Yoshinobu, Tatsuo
A1  - Finger, Friedhelm
A1  - Krause, Steffi
A1  - Schöning, Michael Josef
T1  - Amorphous silicon as semiconductor material for high resolution LAPS
T2  - Eurosensors XVII : the 17th European Conference on Solid-State Transducers ; University of Minho, Guimarães, Portugal, September 21 - 24, 2003
Y1  - 2003
SP  - 48
EP  - 49
ER  - 
TY  - CHAP
A1  - Moshiri-Kahak, Amir
A1  - Pfaff, Raphael
A1  - Gäbel, Markus
A1  - Reich, Alexander
T1  - Modellierung der  Adhäsionsfläche im Rad-Schiene-Kontakt unter Einsatz von  reibwertverbessernden Mitteln
T2  - 15. Internationale Schienenfahrzeugtagung Rad Schiene 2017, Dresden, März 2017
Y1  - 2017
N1  - Internationale Schienenfahrzeugtagung <15., 2017, Dresden>
ER  - 
TY  - CHAP
A1  - Mulsow, Niklas A.
A1  - Hülsen, Benjamin
A1  - Gützlaff, Joel
A1  - Spies, Leon
A1  - Bresser, Andreas
A1  - Dabrowski, Adam
A1  - Czupalla, Markus
A1  - Kirchner, Frank
T1  - Concept and design of an autonomous micro rover for long term lunar exploration
T2  - Proceedings of the 74th International Astronautical Congress
N2  - Research on robotic lunar exploration has seen a broad revival, especially since the Google Lunar X-Prize increasingly brought private endeavors into play. This development is supported by national agencies with the aim of enabling long-term lunar infrastructure for in-situ operations and the establishment of a moon village. One challenge for effective exploration missions is developing a compact and lightweight robotic rover to reduce launch costs and open the possibility for secondary payload options. Existing micro rovers for exploration missions are clearly limited by their design for one day of sunlight and their low level of autonomy. For expanding the potential mission applications and range of use, an extension of lifetime could be reached by surviving the lunar night and providing a higher level of autonomy. To address this objective, the paper presents a system design concept for a lightweight micro rover with long-term mission duration capabilities, derived from a multi-day lunar mission scenario at equatorial regions. Technical solution approaches are described, analyzed, and evaluated, with emphasis put on the harmonization of hardware selection due to a strictly limited budget in dimensions and power.
Y1  - 2023
N1  - 74. International Astronautical Congress (IAC-2023), October 2-6 2023, Baku, Azerbaijan
PB  - dfki
CY  - Saarbrücken
ER  - 
TY  - CHAP
A1  - Möhren, Felix
A1  - Bergmann, Ole
A1  - Janser, Frank
A1  - Braun, Carsten
T1  - On the determination of harmonic propeller loads
T2  - AIAA SCITECH 2023 Forum
N2  - Dynamic loads significantly impact the structural design of propeller blades due to fatigue and static strength. Since propellers are elastic structures, deformations and aerodynamic loads are coupled. In the past, propeller manufacturers established procedures to determine unsteady aerodynamic loads and the structural response with analytical steady-state calculations. According to the approach, aeroelastic coupling primarily consists of torsional deformations. They neglect bending deformations, deformation velocities, and inertia terms. This paper validates the assumptions above for a General Aviation propeller and a lift propeller for urban air mobility or large cargo drones. Fully coupled reduced-order simulations determine the dynamic loads in the time domain. A quasi-steady blade element momentum approach transfers loads to one-dimensional finite beam elements. The simulation results are in relatively good agreement with the analytical method for the General Aviation propeller but show increasing errors for the slender lift propeller. The analytical approach is modified to consider the induced velocities. Still, inertia and velocity proportional terms play a significant role for the lift propeller due to increased elasticity. The assumption that only torsional deformations significantly impact the dynamic loads of propellers is not valid. Adequate determination of dynamic loads of such designs requires coupled aeroelastic simulations or advanced analytical procedures.
Y1  - 2023
U6  - https://doi.org/10.2514/6.2023-2404
N1  - AIAA SCITECH 2023 Forum, 23-27 January 2023, National Harbor, Md & Online
PB  - AIAA
ER  - 
TY  - CHAP
A1  - Möhring, S.
A1  - Wulfhorst, H.
A1  - Roth, J.
A1  - Tippkötter, Nils
T1  - Pretreatment strategies for lignocellulosic biomass
T2  - New frontiers of biotech-processes (Himmelfahrtstagung) : 02-04 May 2016, Rhein-Mosel-Halle, Koblenz/Germany
Y1  - 2016
SP  - 131
PB  - DECHEMA
CY  - Frankfurt am Main
ER  - 
TY  - CHAP
A1  - Müller, Karsten
T1  - Strategien der Zustandserfassung von Abwasserkanälen
T2  - Entwicklungen in der Kanalisationstechnik : schriftliche Fassungen der Vorträge zur 5. Tagung "Entwicklungen in der Kanalisationstechnik" : am 22. und 23. Juni 2004 in Köln / MUNLV, Ministerium für Umwelt und Naturschutz, Landwirtschaft und Verbraucherschutz des Landes Nordrhein-Westfalen, Düsseldorf ... Tagungsleitung: Max Dohmann ... Aachener Schriften zur Stadtentwaesserung ASS. Bd. 5
Y1  - 2004
SP  - 1
EP  - 16
PB  - Institut für Siedlungswasserwirtschaft der RWTH Aachen
CY  - Aachen
ER  - 
TY  - CHAP
A1  - Müller, Karsten
T1  - Strategien zur Zustandserfassung von Kanalisationen
T2  - Integration in der Abwasserentsorgung : Tagungsband Dresden, 04.10.2007 / Dresdner Kolloquium zur Siedlungswasserwirtschaft / Hrsg.: Peter Krebs. Dresdner Berichte. 29
Y1  - 2007
SP  - 39
EP  - 50
PB  - Inst. für Siedlungs- und Industriewasserwirtschaft
CY  - Dresden
ER  - 
TY  - CHAP
A1  - Müller, Karsten
A1  - Fischer, B.
T1  - Objective condition assessment of sewer systems
T2  - Strategic asset management of water supply and wastewater infrastructures : invited papers from the 2nd IWA Leading Edge Conference on Strategic Asset Management (LESAM), Lisbon, October [17 - 19] 2007 / ed. by Helene Alegre and Maria do Céu Almeida
Y1  - 2009
SN  - 9781843391869
SP  - 521
EP  - 534
PB  - IWA Publ.
CY  - London
ER  - 
TY  - CHAP
A1  - Müller, Karsten
A1  - Fischer, Benedikt
A1  - Lehmann, Thomas
T1  - Einsatzmöglichkeiten von Bilderkennungsverfahren zur Zustandserfassung von Kanalisationen
T2  - 7. Kölner Kanal Kolloquium : 06. und 07. September 2006 im Maternushaus, Köln / hrsg. von J. Pinnekamp. Aachener Schriften zur Stadtentwässerung. Bd. 9
Y1  - 2006
SN  - 3-938996-02-1
SP  - 16/1
EP  - 16/18
PB  - Ges. zur Förderung der Siedlungswasserwirtschaft an der RWTH Aachen
CY  - Aachen
ER  - 
TY  - CHAP
A1  - Müller, Karsten
A1  - Hüben, Susanne
T1  - From rehabilitation strategy up to formation of lots : implementation of a computer-aided decision support system
T2  - 11th International Conference on Urban Drainage, Edinburgh, Scotland, UK, 31st August to 5th September 2008
Y1  - 2008
ER  - 
TY  - CHAP
A1  - Müller, Karsten
A1  - Krug, R.
T1  - Selektive Inspektion als Grundlage für Betrieb, Unterhalt und Sanierung
T2  - Schriftliche Fassungen der Vorträge zur 3. Tagung "Entwicklungen in der Kanalisationstechnik" : am 2. und 3. September 1999 in Köln
Y1  - 1999
SP  - 10/1
EP  - 10/8
CY  - Köln
ER  - 
TY  - CHAP
A1  - Müller, Karsten
A1  - Lorenz, U.
T1  - Neue Entwicklungen in der Abwasserwärmenutzung : Ergebnisse einer Potenzialstudie für das Kanalnetz der Stadt Aachen
T2  - 42. Essener Tagung für Wasser- und Abfallwirtschaft : vom 18.3. - 20.3. 2009 im Eurogress Aachen / hrsg. von Johannes Pinnekamp. Gewässerschutz - Wasser - Abwasser. Bd. 217
Y1  - 2009
SN  - 978-3-938996-23-2
SP  - 40/1
EP  - 40/14
PB  - Ges. zur Förderung der Siedlungswasserwirtschaft an der RWTH Aachen
CY  - Aachen
ER  - 
TY  - CHAP
A1  - Müller, Karsten
A1  - Rohlfing, Richard
A1  - Hueben, Susanne
T1  - Entwicklung und Umsetzung von Sanierungsstrategien am Beispiel der Stadt Rheine
T2  - 6. Kölner Kanal-Kolloquium : 07. und 08. September 2005 im Maternushaus, Köln / hrsg. von Johannes Pinnekamp ... Aachener Schriften zur Stadtentwässerung. Bd. 6
Y1  - 2005
SN  - 3-932-590-98-8
SP  - 9/1
EP  - 9/18
PB  - Ges. zur Förderung der Siedlungswasserwirtschaft an der RWTH Aachen
CY  - Aachen
ER  - 
TY  - CHAP
A1  - Müller, Tim M.
A1  - Altherr, Lena
A1  - Ahola, Marja
A1  - Schabel, Samuel
A1  - Pelz, Peter F.
ED  - Rodrigues, H. C.
T1  - Multi-Criteria optimization of pressure screen systems in paper recycling – balancing quality, yield, energy consumption and system complexity
T2  - EngOpt 2018 Proceedings of the 6th International Conference on Engineering Optimization
N2  - The paper industry is the industry with the third highest energy consumption in the European Union. Using recycled paper instead of fresh fibers for papermaking is less energy consuming and saves resources. However, adhesive contaminants in recycled paper are particularly problematic since they reduce the quality of the resulting paper-product. To remove as many contaminants and at the same time obtain as many valuable fibres as possible, fine screening systems, consisting of multiple interconnected pressure screens, are used. Choosing the best configuration is a non-trivial task: The screens can be interconnected in several ways, and suitable screen designs as well as operational parameters have to be selected. Additionally, one has to face conflicting objectives. In this paper, we present an approach for the multi-criteria optimization of pressure screen systems based on Mixed-Integer Nonlinear Programming. We specifically focus on a clear representation of the trade-off between different objectives.
Y1  - 2019
SN  - 978-3-319-97773-7
U6  - https://doi.org/10.1007/978-3-319-97773-7_105
N1  - EngOpt 2018 Proceedings of the 6th International Conference on Engineering Optimization. 17-19 September 2018. Lisboa, Portugal
PB  - Springer International Publishing
CY  - Basel
ER  -