TY  - JOUR
A1  - Enning, Manfred
A1  - Baier, M.
T1  - Energetic and operational use of FlexCargoRail freight wagons in the single wagon load traffic / Baier, M. ; Enning, M.
JF  - Towards zero emission : EVS 24, the 24th  International  Battery, Hybrid and Fuel Cell Electric Vehicle Symposium & Exhibition, Stavanger, Norway, May 13 - 16, 2009 ; symposium proceedings / organised by AVERE ... Robert Stüssi [Hrsg.]
Y1  - 2009
N1  - European Association of Electric Road Vehicles ; EVS ; (24 : ; 2009.05.13-16 : ; Stavanger)
CY  - Stavanger
ER  - 
TY  - JOUR
A1  - Enning, Manfred
A1  - Bernhard, S.
A1  - Rake, H.
T1  - Automation of a laboratory plant for direct casting of thin steel strips / Bernhard, S. ; Enning, M. ; Rake, H.
JF  - Control Engineering Practice. 2 (1994), H. 6
Y1  - 1994
SN  - 0967-0661
SP  - 961
EP  - 967
ER  - 
TY  - JOUR
A1  - Enning, Manfred
A1  - Hücker, Jan
A1  - Jenayeh, Imad
A1  - Rake, Heinrich
T1  - A Parametric Identification Scheme for a Self-tuning Industrial Compact Controller - INTERKAMA 1999 / Hucker, Jan ; Jenayeh, Imad ; Enning, Manfred ; Rake, Heinrich
Y1  - 1999
N1  - ISA TP99UN139 ; Proceedings ISA-Tech Conference, Düsseldorf 1999
ER  - 
TY  - JOUR
A1  - Enning, Manfred
A1  - Jenayeh, I.
A1  - Müller, C.
A1  - Kositza, N.
T1  - Mechatronics in automating shunting processes in marshalling yards / Jenayeh, I. ; Müller, C.; Kositza, N. ; Enning, M. ; Rake, H.
JF  - Mechatronics  '98 : proceedings of the 6th UK Mechatronics Forum International Conference, Skövde, Sweden, 9-11 September 1998
Y1  - 1998
SN  - 0-08-043339-1
N1  - UK Mechatronics Forum International Conference (6 : 1998  : Skövde)
PB  - Pergamon
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Enning, Manfred
A1  - Jenayeh, I.
A1  - Müller, C.
A1  - Kositza, N.
T1  - A New Approach for Automating Shunting Processes in Marshalling Yards / Jenayeh, I.;  Müller, C. ; Kositza, N. ; Enning, M. ; Rake, H.
JF  - Computational Engineering in Systems Applications : 2nd IMACS International Multiconference CESA'98; [abstracts; Nabeul-Hammamet, Tunisia, April 1 - 4, 1998] / ed. by Pierre Borne
Y1  - 1998
SP  - 338
EP  - 343
PB  - UCIS
CY  - Villeneuve d'Ascq
ER  - 
TY  - JOUR
A1  - Enning, Manfred
A1  - Jenayeh, I.
A1  - Müller, C.
A1  - Rake, Heinrich
T1  - Development and realization of a manipulator for automatic decoupling of freight cars in marshalling yards /  Jenayeh, I. ; Müller, C. ; Enning, Manfred ; Rake, Heinrich ; Peter, J.
Y1  - 1997
N1  - World Congress on Railway Research, Florenz, 16.-19.11.1997, 1997
ER  - 
TY  - JOUR
A1  - Enning, Manfred
A1  - Mann, S.
A1  - Bollig, A.
A1  - Kaierle, S.
T1  - Autonomous Production Cell for Laser Beam Welding / Mann S. ; Bollig, A. ; Kaierle, S. ; Abel, D. ; Poprawe, R.
Y1  - 2003
SN  - 0912035757
N1  - ICALEO 2003, Florida  ; Laser Materials Processing Conference ; (2003, Jacksonville, Fla.) ; ICALEO ; (22, 2003, Jacksonville, Fla.)
PB  - LIA
CY  - Orlando, Fla
ER  - 
TY  - JOUR
A1  - Enning, Manfred
A1  - Stützle, Thorsten
A1  - Viereck, Uwe
A1  - Stribersky, Anton
T1  - Creepage control for use in wheelslide protection systems / Stützle, Thorsten ; Viereck, Uwe ; Stribersky, Anton ; Rulka, Wolfgang ; Enning, Manfred ; Abel, Dirk
JF  - Control in transportation systems : proceedings of the 11th IFAC symposium on control in transportation systems (CTS 2006), August 29-31, 2006, Delft, the Netherlands / International Federation of Automatic Control
Y1  - 2006
SN  - 0742-5953
ER  - 
TY  - JOUR
A1  - Enning, Manfred
A1  - Zambou, N.
A1  - Abel, D.
T1  - Longitudinal Control of Following Vehicles within Platoon : A Model-Based Predictive Approach / Zambou, N. ; Enning, M. ; Abel, D.
JF  - Advances in automotive control 2004 : a proceedings volume from the IFAC symposium, Salerno, Italy, 19 - 23 April 2004 / ed. C. Pianese
Y1  - 2005
SN  - 0080442501
N1  - International Federation of Automatic Control ; Symposium on Advances in Automotive Control ; (4, 2004, Salerno)
SP  - 733
EP  - 738
PB  - Elsevier
CY  - Oxford
ER  - 
TY  - JOUR
A1  - Enning, Manfred
A1  - Zambou, Nathan
A1  - Abel, Dirk
T1  - Nonlinear spacing control of following vehicles within platoon a controlled lagrangian approach / Zambou, Nathan ; Enning, Manfred ; Abel, Dirk
JF  - NOLCOS, IFAC Symposium on Nonlinear Control Systems
Y1  - 2004
N1  - NOLCOS, 2004, IFAC Symposium on Nonlinear Control Systems, 6th, Stuttgart, DE, 2004-09-01 - 2004-09-03
SP  - 1211
EP  - 1216
ER  - 
TY  - JOUR
A1  - Fateri, Miranda
A1  - Gebhardt, Andreas
T1  - Selective Laser Melting of Soda-Lime Glass Powder
JF  - International Journal of Applied Ceramic Technology
Y1  - 2015
U6  - http://dx.doi.org/10.1111/ijac.12338
SN  - 1744-7402
VL  - 12
IS  - 1
SP  - 53
EP  - 61
PB  - Wiley-Blackwell
CY  - Oxford
ER  - 
TY  - JOUR
A1  - Fateri, Miranda
A1  - Gebhardt, Andreas
T1  - Process Parameters Development of Selective Laser Melting of Lunar Regolith for On-Site Manufacturing Applications
JF  - International Journal of Applied Ceramic Technology
Y1  - 2015
SN  - 1744-7402
U6  - http://dx.doi.org/10.1111/ijac.12326
VL  - 12
IS  - 1
SP  - 46
EP  - 52
PB  - Wiley-Blackwell
CY  - Oxford
ER  - 
TY  - JOUR
A1  - Fateri, Miranda
A1  - Gebhardt, Andreas
T1  - Additive manufactured mechanical disentanglement lock
JF  - RTejournal - Forum für Rapid Technologie
Y1  - 2015
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:0009-2-42147
SN  - 1614-0923
VL  - 12
PB  - Fachhochschule Aachen
CY  - Aachen
ER  - 
TY  - JOUR
A1  - Fateri, Miranda
A1  - Gebhardt, Andreas
A1  - Thümmler, Stefan
A1  - Thurn, Laura
T1  - Experimental investigation on selective laser melting of glass
JF  - Physics procedia : 8th International Conference on Laser Assisted Net Shape Engineering LANE 2014
Y1  - 2014
U6  - http://dx.doi.org/10.1016/j.phpro.2014.08.118
SN  - 1875-3892 (E-Journal); 1875-3884 (Print)
VL  - 56 (2014)
SP  - 357
EP  - 364
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Fateri, Miranda
A1  - Hötter, Jan-Steffen
A1  - Gebhardt, Andreas
T1  - Experimental and Theoretical Investigation of Buckling Deformation of Fabricated Objects by Selective Laser Melting
JF  - Physics Procedia
N2  - Although Selective Laser Melting (SLM) process is an innovative manufacturing method, there are challenges such as inferior mechanical properties of fabricated objects. Regarding this, buckling deformation which is caused by thermal stress is one of the undesired mechanical properties which must be alleviated. As buckling deformation is more observable in hard to process materials, silver is selected to be studied theoretically and experimentally for this paper. Different scanning strategies are utilized and a Finite Element Method (FEM) is applied to calculate the temperature gradient in order to determine its effect on the buckling deformation of the objects from experiments.
Y1  - 2012
U6  - http://dx.doi.org/10.1016/j.phpro.2012.10.062
SN  - 1875-3892
N1  - Part of special issue "Laser Assisted Net shape Engineering 7 (LANE 2012)"
VL  - 39
SP  - 464
EP  - 470
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Feldmann, Markus
A1  - Pak, Daniel
A1  - Geßler, Achim
A1  - Dilthey, Ulrich
A1  - Schleser, Markus
T1  - Bonded connections for textile reinforced concrete structures
JF  - Cailiao-gongcheng = Journal of materials engineering
Y1  - 2006
SN  - 1001-4381
IS  - Special iss.
SP  - 123
EP  - 127
ER  - 
TY  - JOUR
A1  - Franko, Josef
A1  - Du, Shengzhi
A1  - Kallweit, Stephan
A1  - Duelberg, Enno Sebastian
A1  - Engemann, Heiko
T1  - Design of a Multi-Robot System for Wind Turbine Maintenance
JF  - Energies
N2  - The maintenance of wind turbines is of growing importance considering the transition to renewable energy. This paper presents a multi-robot-approach for automated wind turbine maintenance including a novel climbing robot. Currently, wind turbine maintenance remains a manual task, which is monotonous, dangerous, and also physically demanding due to the large scale of wind turbines. Technical climbers are required to work at significant heights, even in bad weather conditions. Furthermore, a skilled labor force with sufficient knowledge in repairing fiber composite material is rare. Autonomous mobile systems enable the digitization of the maintenance process. They can be designed for weather-independent operations. This work contributes to the development and experimental validation of a maintenance system consisting of multiple robotic platforms for a variety of tasks, such as wind turbine tower and rotor blade service. In this work, multicopters with vision and LiDAR sensors for global inspection are used to guide slower climbing robots. Light-weight magnetic climbers with surface contact were used to analyze structure parts with non-destructive inspection methods and to locally repair smaller defects. Localization was enabled by adapting odometry for conical-shaped surfaces considering additional navigation sensors. Magnets were suitable for steel towers to clamp onto the surface. A friction-based climbing ring robot (SMART— Scanning, Monitoring, Analyzing, Repair and Transportation) completed the set-up for higher payload. The maintenance period could be extended by using weather-proofed maintenance robots. The multi-robot-system was running the Robot Operating System (ROS). Additionally, first steps towards machine learning would enable maintenance staff to use pattern classification for fault diagnosis in order to operate safely from the ground in the future.
Y1  - 2020
U6  - http://dx.doi.org/10.3390/en13102552
SN  - 1996-1073
VL  - 13
IS  - 10
SP  - Article 2552
PB  - MDPI
CY  - Basel
ER  - 
TY  - JOUR
A1  - Franzen, Julius
A1  - Pinders, Erik
A1  - Pfaff, Raphael
A1  - Enning, Manfred
T1  - RailCrowd’s virtual fleets: Make most of your asset data
JF  - Deine Bahn
N2  - For smaller railway operators or those with a diverse fleet, it can be difficult to collect sufficient data to improve maintenance programs. At the same time, new rules such as entity in charge of maintenance – ECM – regulations impose an additional workload by requiring a dedicated maintenance management system and specific reports. The RailCrowd platform sets out to facilitate compliance with ECM and similar regulations while at the same time pooling anonymised fleet data across operators to form virtual fleets, providing greater data insights.
Y1  - 2018
SN  - 0948-7263
IS  - 9
SP  - 11
EP  - 13
PB  - Bahn-Fachverlag
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Frohberg, Martin G.
A1  - Anik, Sabri
T1  - The calculation of component activities of binary metallic melts from their gas solubilities
JF  - Zeitschrift für Metallkunde
Y1  - 1985
SN  - 0044-3093
VL  - 76
IS  - 2
SP  - 135
EP  - 137
ER  - 
TY  - JOUR
A1  - Frohberg, Martin G.
A1  - Anik, Sabri
T1  - Thermodynamic relations between component activities and gas solubilities in binary metallic systems
JF  - Berichte der Bunsengesellschaft für physikalische Chemie
Y1  - 1985
SN  - 0940-483X
SN  - 0005-9021
VL  - 89
IS  - 2
SP  - 130
EP  - 134
ER  - 
TY  - JOUR
A1  - Frohberg, Martin G.
A1  - Anik, Sabri
T1  - The application of a quadi-chemical lattice model to binary metallic solvents containing oxygen in higher concentrations
JF  - Zeitschrift für Metallkunde
Y1  - 1983
SN  - 0044-3093
VL  - 74
IS  - 10
SP  - 665
EP  - 666
ER  - 
TY  - JOUR
A1  - Gebhardt, Andreas
T1  - Rapid Prototyping and PIV
Y1  - 2001
N1  - Workshop on Industrial Applications of Particle Image Velocimetry <2001, Köln>
ER  - 
TY  - JOUR
A1  - Gebhardt, Andreas
T1  - Laserwelding with fillerwire
JF  - LIA handbook of laser material processing / Laser Institute of America
Y1  - 2001
SN  - 3-540-41770-2
N1  - Chapter 11.2.12
CY  - Orlando, Florida
ER  - 
TY  - JOUR
A1  - Gebhardt, Andreas
T1  - Rapid Prototyping
JF  - Landolt-Börnstein - Group VIII Advanced Materials and Technologies‡Vol. 1 Laser Physics and Applications‡Subvol. C  Laser Applications / authors: Bäuerle, D.  ...
Y1  - 2004
SN  - 3-540-00105-0
SP  - 105
EP  - 123
PB  - Heidelberg
CY  - Springer
ER  - 
TY  - JOUR
A1  - Gebhardt, Andreas
A1  - Fateri, Miranda
T1  - 3D printing and its applications
JF  - RTejournal - Forum für Rapid Technologie
N2  - Eine zunehmende Anzahl von Artikeln in Publikumszeitschriften und Journalen rückt die direkte Herstellung von Bauteilen und Figuren immer mehr in das Bewusstsein einer breiten Öffentlichkeit. Leider ergibt sich nur selten ein einigermaßen vollständiges Bild davon, wie und in welchen Lebensbereichen diese Techniken unseren Alltag verändern werden. Das liegt auch daran, dass die meisten Artikel sehr technisch geprägt sind und sich nur punktuell auf Beispiele stützen. Dieser Beitrag geht von den Bedürfnissen der Menschen aus, wie sie z.B. in der Maslow’schen Bedürfnispyramide strukturiert dargestellt sind und unterstreicht dadurch, dass 3D Printing (oder Additive Manufacturing resp. Rapid Prototyping) bereits alle Lebensbereiche erfasst hat und im Begriff ist, viele davon zu revolutionieren.
N2  - An increasing amount of popular articles focus on making models and sculptures by 3D Printing thus making more and more even private users aware of this technology. Unfortunately they mostly draw an incomplete picture of how our daily life will be influenced by this new technology. Often this is caused by a very technical point of view based on not very representative examples. This article focuses on the peoples needs as they have been structured by the so-called Maslow pyramid. Doing so, it underlines that 3D Printing (called Additive Manufacturing or Rapid Prototyping as well) already touches all aspects of life and is about to revolutionize most of them.
Y1  - 2013
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:0009-2-35626
SN  - 1614-0923
VL  - 10
IS  - 1
PB  - Fachhochschule Aachen
CY  - Aachen
ER  - 
TY  - JOUR
A1  - Gebhardt, Andreas
A1  - Schmidt, Frank-Michael
T1  - Practical experiences with making and finishing of coloured models using 3D printing
Y1  - 2002
N1  - International Conference on Rapid Prototyping and Manufacturing <2, 2002, Beijing>
ER  - 
TY  - JOUR
A1  - Gebhardt, Andreas
A1  - Schmidt, Frank-Michael
A1  - Hötter, Jan-Steffen
A1  - Sokalla, Wolfgang
A1  - Sokalla, Patrick
T1  - Additive Manufacturing by selective laser melting the realizer desktop machine and its application for the dental industry
JF  - Physics Procedia
Y1  - 2010
SN  - 1875-3892
N1  - Laser Assisted Net Shape Engineering 6, Proceedings of the LANE 2010, Part 2
VL  - 5
IS  - 2
SP  - 543
EP  - 549
ER  - 
TY  - JOUR
A1  - Glowania, Michael
A1  - Gries, Thomas
A1  - Schoene, Jens
A1  - Schleser, Markus
A1  - Reisgen, Uwe
T1  - Innovative coating technology for textile reinforcements of concrete applications
JF  - 13th International Congress on Polymers in Concrete : 10 - 12 February 2010, Funchal, Madeira, Portugal.(Key engineering materials. Vol. 466)
Y1  - 2011
SN  - 978-3-03785-008-4
SN  - 1013-9826 (E-Journal) ; 0252-1059 (Print)
SP  - 167
EP  - 173
PB  - Trans Tech Publications
CY  - Bäch
ER  - 
TY  - JOUR
A1  - Grundmann, Reinhard
T1  - Design Criteria for Aeroacoustic Wind Tunnels
Y1  - 1992
N1  - Konferenzeinzelbericht : DGLR-workshop : Joint meeting of the Specialists Groups Test Facilities/Aeroacoustics - Flight Noise .  Deutsche Gesellschaft für Luft- und Raumfahrt. Test Facilities Specialist Group ; Deutsche Gesellschaft für Luft- und Raumfahr
ER  - 
TY  - JOUR
A1  - Haag, S.
A1  - Zontar, D.
A1  - Schleupen, Josef
A1  - Müller, T.
A1  - Brecher, C.
T1  - Chain of refined perception in self-optimizing assembly of micro-optical systems
JF  - Journal of sensors and sensor systems
N2  - Today, the assembly of laser systems requires a large share of manual operations due to its complexity regarding the optimal alignment of optics. Although the feasibility of automated alignment of laser optics has been shown in research labs, the development effort for the automation of assembly does not meet economic requirements – especially for low-volume laser production. This paper presents a model-based and sensor-integrated assembly execution approach for flexible assembly cells consisting of a macro-positioner covering a large workspace and a compact micromanipulator with camera attached to the positioner. In order to make full use of available models from computer-aided design (CAD) and optical simulation, sensor systems at different levels of accuracy are used for matching perceived information with model data. This approach is named "chain of refined perception", and it allows for automated planning of complex assembly tasks along all major phases of assembly such as collision-free path planning, part feeding, and active and passive alignment. The focus of the paper is put on the in-process image-based metrology and information extraction used for identifying and calibrating local coordinate systems as well as the exploitation of that information for a part feeding process for micro-optics. Results will be presented regarding the processes of automated calibration of the robot camera as well as the local coordinate systems of part feeding area and robot base.
Y1  - 2014
U6  - http://dx.doi.org/10.5194/jsss-3-87-2014
SN  - 2194-878X
VL  - 3
IS  - 1
SP  - 87
EP  - 95
PB  - Copernicus Publ.
CY  - Göttingen
ER  - 
TY  - JOUR
A1  - Hanrath, Wilhelm
T1  - Character tables of some factor groups of space groups
JF  - Perfect groups / Derek F. Holt and W. Plesken
Y1  - 1989
SN  - 0-19-853559-7
SP  - 357
EP  - 359
PB  - Clarendon Press
CY  - Oxford
ER  - 
TY  - JOUR
A1  - Hanrath, Wilhelm
A1  - Plesken, Wilhelm
T1  - Group rings and irreducible representations of space groups / by W. Hanrath and W. Plesken
JF  - Journal für die reine und angewandte Mathematik. 362 (1985)
Y1  - 1985
SN  - 0075-4102
SP  - 130
EP  - 140
ER  - 
TY  - JOUR
A1  - Hanrath, Wilhelm
A1  - Plesken, Wilhelm
T1  - The lattices of six-dimensional euclidean space
JF  - Mathematics of computation. 43 (1984), H. 168
Y1  - 1984
SN  - 0025-5718
SP  - 573
EP  - 587
ER  - 
TY  - JOUR
A1  - Haselgruber, Nikolaus
A1  - Mautner, Karin
A1  - Thiele, Jan
T1  - Usage Space Analysis for Reliability Testing
JF  - Quality and Reliability Engineering International
N2  - During the development process of a complex technical product, one widely used and important technique is accelerated testing where the applied stress on a component is chosen to exceed the reference stress, i.e. the stress encountered in field operation, in order to reduce the time to failure. For that, the reference stress has to be known. Since a complex technical product may fail regarding numerous failure modes, stress in general is highly dimensional rather than scalar. In addition, customers use their products individually, i.e. field operation should be described by a distribution rather than by one scalar stress value. In this paper, a way to span the customer usage space is shown. It allows the identification of worst case reference stress profiles in significantly reduced dimensions with minimal loss of information. The application example shows that even for a complex product like a combustion engine, stress information can be compressed significantly. With low measurement effort it turned out that only three reference stress cycles were sufficient to cover a broad range of customer stress variety.
Y1  - 2010
U6  - http://dx.doi.org/10.1002/qre.1155
SN  - 1099-1638
N1  - Special Issue: Business and Industrial Statistics: Developments and Industrial Practices in Quality and Reliability
VL  - 26
IS  - 8
SP  - 877
EP  - 885
PB  - Wiley
CY  - New York
ER  - 
TY  - JOUR
A1  - Heinrichs, Horst
A1  - Weck, H.
T1  - Efficient finite-element structural analysis by interactive graphic mesh generation
JF  - CIRP Annals. 30 (1981), H. 1
Y1  - 1981
SP  - 279
EP  - 284
ER  - 
TY  - JOUR
A1  - Hötter, Jan-Steffen
A1  - Fateri, Miranda
A1  - Gebhardt, Andreas
T1  - Selective laser melting of metals: desktop machines open up new chances even for small companies
JF  - Advanced materials research
N2  - Additive manufacturing (AM) of metal parts by using Selective Laser Melting (SLM) has become a powerful tool mostly in the area of automotive, aerospace engineering and others. Especially in the field of dentistry, jewelry and related branches that require individualized or even one-of-a-kind products, the direct digital manufacturing process opens up new ways of design and manufacturing. In these fields, mostly small and medium sized businesses (SME) are operating which do not have sufficient human and economic resources to invest in this technology. But to stay competitive, the application of AM can be regarded as a necessity. In this situation a new desktop machine (Realizer SLM 50) was introduced that cost about 1/3 of a shop floor SLM machine and promises small quality parts. To find out whether the machine really is an alternative for SMEs the University of Applied Science, Aachen, Germany, designed, build and optimized typical parts from the dentistry and the jewelry branches using CoCr and silver material, the latter being new with this application. The paper describes the SLM procedure and how to find and optimize the most important parameters. The test is accompanied by digital simulation in order to verify the build parameters and to plan future builds. The procedure is shown as well as the resulting parts made from CoCr and silver material.
Y1  - 2012
U6  - http://dx.doi.org/10.4028/www.scientific.net/AMR.622-623.461
SN  - 1662-8985 (E-Journal); 1022-6680 (Print)
VL  - 622-623
SP  - 461
EP  - 465
PB  - Trans Tech Publ.
CY  - Baech
ER  - 
TY  - JOUR
A1  - Kallweit, Stephan
A1  - Dues, M.
A1  - Siekmann, H.
T1  - Particle-Image-Velocimetry (PIV) in rotierenden Maschinen / Dues, M. ; Kallweit, S. ; Siekmann, H.
JF  - Lasermethoden in der Strömungsmesstechnik, 3. Fachtagung der Deutschen Gesellschaft für Laser-Anemometrie (GALA), Bremen, DE, 5.-7. Sep, 1994
Y1  - 1994
SN  - 3-8265-0162-4
N1  - Lasermethoden in der Strömungsmesstechnik, Fachtagung, 3
SP  - 19.1
EP  - 19-5
PB  - Shaker
CY  - Aachen
ER  - 
TY  - JOUR
A1  - Kallweit, Stephan
A1  - Dues, M. W.
A1  - Siekmann, H. E.
T1  - Spectral Analysis of Pressure Fluctuations and Velocity Fields as Investigated on Propeller Pumps / Dues, M. W. ; Kallweit, S. D. ; Siekmann, H. E.
JF  - Preprints : Fifth International Symposium on Transport Phenomena and Dynamics of Rotating Machinery (ISROMAC-5) : May 8 - 11, 1994, Maui Marriott Hotel, Kaanapali, Maui, Hawaii, U.S.A / sponsored by Pacific Center of Thermal-Fluids Engineering. [W.-J. Yang, chairman] / Vol. B.
Y1  - 1994
N1  - International Symposium on Transport Phenomena and Dynamics of Rotating Machinery 5, 1994, Kaanapali, Hawaii
SP  - 98
EP  - 112
ER  - 
TY  - JOUR
A1  - Kallweit, Stephan
A1  - Helbing, M.
A1  - Orglmeister, R.
A1  - Siekmann, H. E.
T1  - Image Processing Techniques with Neural Networks for Flow Visualization in Rotating Machinery / Helbing, M. ; Orgimeiste, R. [Orglmeister, R.] ; Kallweit, S. ; Siekmann, H. E. ; Dues, M. ; Cronemeyer, J.
JF  - FLUCOME '94 : the 4th Triennial International Symposium on Fluid Control, Measurement and Visualization; August 29 - September 1, 1994, Toulouse, France, International Congress Centre, DIGORA-Labège / CERT/ONERA. General chairman Patrick Hebrard
Y1  - 1994
SP  - 87
EP  - 94
CY  - Toulouse
ER  - 
TY  - JOUR
A1  - Kallweit, Stephan
A1  - Kaminsky, R.
A1  - Rossi, M.
A1  - Morbiducci, U.
T1  - Time resolved PIV technique for high temporal resolution measurements of prosthetic heart valves fluid dynamics / Kaminsky, R. ; Rossi, M. ; Morbiducci, U. ; Scalise, L. ; Catellini, P. ; Kallweit, S. ; Verdonck, P. ; Grigioni, M.
JF  - The International Journal of Artificial Organs. 28 (2005), H. 9
Y1  - 2005
SN  - 1724-6040
N1  - Abstracts: XXXII Annual ESAO Congress, 5-8 October 2005, Bologna - Italy
SP  - 946
ER  - 
TY  - JOUR
A1  - Kallweit, Stephan
A1  - Kaminsky, R.
A1  - Rossi, M.
A1  - Morbiducci, U.
T1  - 2D PIV Study of the flow downstream : Two prototypes of a ney monoleaflet artificial aortic heart valve prosthesis / Kaminsky, R. ; Kramm, K. ; Weber, H. J. ; Simons, A. P. ; Kallweit, S. ; Verdonck, P. R.
JF  - The International Journal of Artificial Organs. 28 (2005), H. 9
Y1  - 2005
SN  - 1724-6040
N1  - Abstracts: XXXII Annual ESAO Congress, 5-8 October 2005, Bologna - Italy
SP  - 921
ER  - 
TY  - JOUR
A1  - Kallweit, Stephan
A1  - Kaminsky, R.
A1  - Rossi, M.
A1  - Morbiducci, U.
T1  - 3D PIV measurements of prosthetic heart valve dynamics / Kaminsky, R. ; Rossi, M. ; Morbiducci, U. ; Scalise, L. ; Castellini, P. ; Kallweit, S. ; Verdonck, P. ; Grigioni, M.
JF  - The International Journal of Artificial Organs. 28 (2005), H. 9
Y1  - 2005
SN  - 1724-6040
N1  - Abstracts: XXXII Annual ESAO Congress, 5-8 October 2005, Bologna - Italy
SP  - 868
ER  - 
TY  - JOUR
A1  - Kallweit, Stephan
A1  - Kaminsky, R.
A1  - Rossi, M.
A1  - Scalise, L.
T1  - PIV Measurements with high temporal Resolution behind Artificial  Heart Valves  / Kaminsky, R. ; Rossi, M. ; Scalise, L. ; Kallweit, S. ; Verdonck, P.
JF  - Proceedings of the 6th International Symposium on Particle Image Velocimetry
Y1  - 2005
N1  - link zum abstract
PB  - Caltech
CY  - Pasadena, CA
ER  - 
TY  - JOUR
A1  - Kallweit, Stephan
A1  - Kaminsky, Radoslav
A1  - Rossi, Massimiliano
A1  - Morbiducci, Umberto
T1  - PIV Measurements of Flows in Artificial Heart Valves / Kaminsky, Radoslav ; Kallweit, Stephan ; Rossi, Massimiliano ; Morbiducci, Umberto ; Scalise, Lorenzo
JF  - Particle Image Velocimetry - New Developments and Recent Applications
Y1  - 2008
SN  - 978-3-540-73528-1
N1  - Topics in Applied Physics
SP  - 55
EP  - 72
ER  - 
TY  - JOUR
A1  - Kallweit, Stephan
A1  - Schimpf, Axel
T1  - Photogrammetric Particle Image Velocimetry / Schimpf, Axel ; Kallweit, Stephan
JF  - Particle image velocimetry : recent improvements; proceedings of the Europiv 2 Workshop held in Zaragoza, Spain, March 31 - April 1, 2003 / edited by M. Stanislas ...
Y1  - 2003
SN  - 3-540-21423-2
SP  - 295
PB  - Springer
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Kallweit, Stephan
A1  - Uchiyama, R.
A1  - Siekmann, H.
T1  - Fault Diagnostic Method for Pump Running Conditions Based on Process Modeling and Neural Network / Uchiyama, R. ; Kallweit, S. ; Siekmann, H.
JF  - International Journal of Rotating Machinery. 4 (1998), H. 1
Y1  - 1998
SN  - 1542-3034
SP  - 49
EP  - 59
ER  - 
TY  - JOUR
A1  - Kallweit, Stephan
A1  - Vanlanduit, S.
A1  - Vanherzeele, J.
A1  - Brouns, M.
T1  - Time resolved PIV reconstruction of periodic flows / Vanlanduit, S. ; Vanherzeele, J. ; Kallweit, S. ; Brouns, M. ; Guillaume, P.
JF  - PIV'07, 7th International Symposium on Particle Image Velocimetry, Roma, IT, Sep 11-14, 2007
Y1  - 2007
N1  - PIV, Internional Symposium on Particle Image Velocimetry, 7 ; Datei: Vanlanduit.pdf
SP  - 1
EP  - 14
ER  - 
TY  - JOUR
A1  - Kallweit, Stephan
A1  - Willert, Chris
A1  - Dues, Michael
A1  - Müller, Ulrich
T1  - PIV for Volume Flow Metering / Kallweit, Stephan ; Willert, Chris ; Dues, Michael ; Müller, Ulrich ; Lederer, Thomas
Y1  - 2008
N1  - 14th International Symposium on Applications of Laser Techniques to Fluid Mechanics, 2008-07-07 - 2008-07-10, Lisbon (Portugal)
SP  - 6 S.
ER  - 
TY  - JOUR
A1  - Kessler, Julia
A1  - Balc, Nicolae
A1  - Gebhardt, Andreas
A1  - Abbas, Karim
T1  - Basic Research on Lattice Structures Focused on the Tensile Strength
JF  - Applied Mechanics and Materials
Y1  - 2015
U6  - http://dx.doi.org/10.4028/www.scientific.net/AMM.808.193
SN  - 1662-7482
N1  - MTeM ; October 14-16, 2015, Cluj-Napoca, Romania
VL  - Vol. 808
SP  - 193
EP  - 198
PB  - Trans Tech Publications
CY  - Bäch
ER  - 
TY  - JOUR
A1  - Kilic, S. A.
A1  - Raatschen, Hans-Jürgen
A1  - Körfgen, B.
A1  - Apaydin, N. M.
A1  - Astaneh-Asl, A.
T1  - FE Model of the Fatih Sultan Mehmet Suspension Bridge Using Thin Shell Finite Elements
JF  - Arabian Journal for Science and Engineering
N2  - This paper presents the results of an eigenvalue analysis of the Fatih Sultan Mehmet Bridge. A high-resolution finite element model was created directly from the available design documents. All physical properties of the structural components were included in detail, so no calibration to the measured data was necessary. The deck and towers were modeled with shell elements. A nonlinear static analysis was performed before the eigenvalue calculation. The calculated natural frequencies and corresponding mode shapes showed good agreement with the available measured ambient vibration data. The calculation of the effective modal mass showed that nine modes had single contributions higher than 5 % of the total mass. They were in a frequency range up to 1.2 Hz. The comparison of the results for the torsional modes especially demonstrated the advantage of using thin shell finite elements over the beam modeling approach.
KW  - Suspension bridge
KW  - 3D nonlinear finite element model
KW  - Thin shell finite elements
KW  - Natural frequency
KW  - Effective modal mass
Y1  - 2017
U6  - http://dx.doi.org/10.1007/s13369-016-2316-y
SN  - 2191-4281
VL  - 42
IS  - 3
SP  - 1103
EP  - 1116
PB  - Springer Nature
ER  - 
TY  - JOUR
A1  - Klocke, Martina
T1  - Study Units in the CIM-Oriented Study Factory
JF  - Qualification for Computer-Integrated Manufacturing. Hrsg.: Felix Rauner
Y1  - 1995
SN  - 3-540-19971-3
SP  - 38
EP  - 51
PB  - Springer
CY  - Berlin [u.a.]
ER  - 
TY  - JOUR
A1  - Koster, Arie
A1  - Scheidweiler, Robert
A1  - Tieves, Martin
T1  - A flow based pruning scheme for enumerative equitable coloring algorithms
JF  - A  flow based pruning scheme for enumerative equitable coloring algorithms
N2  - An equitable graph coloring is a proper vertex coloring of a graph G where the sizes of the color classes differ by at most one. The equitable chromatic number is the smallest number k such that G admits such equitable k-coloring. We focus on enumerative algorithms for the computation of the equitable coloring number and propose a general scheme to derive pruning rules for them: We show how the extendability of a partial coloring into an equitable coloring can be modeled via network flows. Thus, we obtain pruning rules which can be checked via flow algorithms. Computational experiments show that the search tree of enumerative algorithms can be significantly reduced in size by these rules and, in most instances, such naive approach even yields a faster algorithm. Moreover, the stability, i.e., the number of solved instances within a given time limit, is greatly improved.
Since the execution of flow algorithms at each node of a search tree is time consuming, we derive arithmetic pruning rules (generalized Hall-conditions) from the network model. Adding these rules to an enumerative algorithm yields an even larger runtime improvement.
Y1  - 2016
U6  - http://dx.doi.org/10.48550/arXiv.1607.08754
N1  - Lehrstuhl II für Mathematik, RWTH Aachen University
SP  - 1
EP  - 30
ER  - 
TY  - JOUR
A1  - Kunkel, Maximilian Hugo
A1  - Gebhardt, Andreas
A1  - Mpofu, Khumbaulani
A1  - Kallweit, Stephan
T1  - Statistical assessment of mechanical properties of selective laser melted specimens of stainless steel
JF  - The International Journal of Advanced Manufacturing Technology
N2  - The rail business is challenged by long product life cycles and a broad spectrum of assembly groups and single parts. When spare part obsolescence occurs, quick solutions are needed. A reproduction of obsolete parts is often connected to long waiting times and minimum lot quantities that need to be purchased and stored. Spare part storage is therefore challenged by growing stocks, bound capital and issues of part ageing. A possible solution could be a virtual storage of spare parts which will be 3D printed through additive manufacturing technologies in case of sudden demand. As mechanical properties of additive manufactured parts are neither guaranteed by machine manufacturers nor by service providers, the utilization of this relatively young technology is impeded and research is required to address these issues. This paper presents an examination of mechanical properties of specimens manufactured from stainless steel through the selective laser melting (SLM) process. The specimens were produced in multiple batches. This paper interrogates the question if the test results follow a normal distribution pattern and if mechanical property predictions can be made. The results will be put opposite existing threshold values provided as the industrial standard. Furthermore, probability predictions will be made in order to examine the potential of the SLM process to maintain state-of-the-art mechanical property requirements.
Y1  - 2018
U6  - http://dx.doi.org/10.1007/s00170-018-2040-8
SN  - 0268-3768
VL  - 98
IS  - 5-8
SP  - 1409
EP  - 1431
PB  - Springer
CY  - London
ER  - 
TY  - JOUR
A1  - Kunkel, Maximilian Hugo
A1  - Gebhardt, Andreas
A1  - Mpofu, Khumbulani
A1  - Kallweit, Stephan
T1  - Quality assurance in metal powder bed fusion via deep-learning-based image classification
JF  - Rapid Prototyping Journal
Y1  - 2019
U6  - http://dx.doi.org/10.1108/RPJ-03-2019-0066
SN  - 1355-2546
VL  - 26
IS  - 2
SP  - 259
EP  - 266
ER  - 
TY  - JOUR
A1  - Kämper, Klaus-Peter
T1  - Development of low-cost injection moulded micropumps. Entwicklung von kostengünstigen, mittels Spritzguß hergestellten Mikropumpen / Döpper, J. (u.a.)
JF  - Actuator 96 : Conference Proceedings ; 5th International Conference on New Actuators ; 26- 28 June, Bremen, Germany / Ed.: Hubert Borgmann. Publ. by: AXON Technology Consult GmbH
Y1  - 1996
N1  - Konferenz-Einzelbericht: ACTUATOR, Internat. Conf. on New Actuators, 5
SP  - 37
EP  - 40
CY  - Bremen
ER  - 
TY  - JOUR
A1  - Kämper, Klaus-Peter
T1  - Education and Training in MST. Kämper, K.-P.; Picard, A.; Brill, M.; Cassel, D.; Jentsch, A.; Merten, S.; Rollwa, M.
JF  - Mst-News (2003)
Y1  - 2003
SN  - 0948-3128
SP  - 35
ER  - 
TY  - JOUR
A1  - Kämper, Klaus-Peter
A1  - Abraham, D. L.
A1  - Hopster, H.
T1  - Spin-polarized electron-energy-loss spectroscopy on epitaxial fcc Co layers on Cu(001)
JF  - Physical Review B. 45 (1992), H. 24
Y1  - 1992
SN  - 1095-3795
SP  - 14335
EP  - 14346
ER  - 
TY  - JOUR
A1  - Kämper, Klaus-Peter
A1  - Abraham, M.
A1  - Ehrfeld, W.
A1  - Hessel, V.
T1  - Microsystem technology: Between research and industrial application. Abraham, M.; Ehrfeld, W.; Hessel, V.; Kämper, K.-P.; Lacher, M.; Picard, A.
JF  - Microelectronic Engineering. 41-42 (1998)
Y1  - 1998
SN  - 0167-9317
N1  - International Conference on Micro- and Nanofarbication <Athens, Greece, 15 September - 18 September 1998>
SP  - 47
EP  - 52
ER  - 
TY  - JOUR
A1  - Kämper, Klaus-Peter
A1  - Berg, U.
A1  - Begemann, M.
A1  - Hagemann, B. (u.a.)
T1  - Series production and testing of a micro motor. Serienfertigung und Prüfung eines Mikromotors
JF  - Actuator 98 : 6th International Conference on New Actuators ; 17 - 19 June, 1998, Bremen, Germany ; conference proceedings / ed.: Hubert Borgmann ...
Y1  - 1998
SN  - 3-933339-00-6
N1  - Konferenz-Einzelbericht: ACTUATOR, Internat. Conf. on New Actuators
SP  - 552
EP  - 555
PB  - Messe Bremen
CY  - Bremen
ER  - 
TY  - JOUR
A1  - Kämper, Klaus-Peter
A1  - Döpper, J.
A1  - Clemens, M.
A1  - Ehrfeld, W.
T1  - Micro gear pumps for dosing of viscous fluids. / Döpper, J. (u.a.)
JF  - Journal of Micromechanics and Microengineering. 7 (1997), H. 3
Y1  - 1997
SN  - 0960-1317
SP  - 230
EP  - 232
ER  - 
TY  - JOUR
A1  - Kämper, Klaus-Peter
A1  - Döpper, J.
A1  - Ehrfeld, W.
A1  - Hagemann, B.
T1  - Simulation supported design of LIGA Microsystems. Kämper, K.-P.; Döpper, J.; Ehrfeld, W.; Hagemann, B.; Hill, S.D.J.; Lehr, H.
JF  - Simulation and design of microsystems and microstructures : [... contains the papers presented at the First International Conference on the Simulation and Design of Microsystems and Microstructures, MicroSIM '95, which was held in Southampton, UK, in September 1995] / [organised by: Wessex Institute of Technology, UK]. Ed.: R. A. Adey
Y1  - 1995
SN  - 1-85312-390-0
SP  - 3
EP  - 10
PB  - Computational Mechanics Publ.
CY  - Southampton [u.a.]
ER  - 
TY  - JOUR
A1  - Kämper, Klaus-Peter
A1  - Döpper, J.
A1  - Ehrfeld, W.
A1  - Hagemann, B.
T1  - An investigation of computer modelling for micro-injection moulding. Hill, S.D.J.; Kämper, K.-P.; Dasbach, U.; Döpper, J.; Ehrfeld, W.; Kaupert, M.
JF  - Simulation and design of microsystems and microstructures : [... contains the papers presented at the First International Conference on the Simulation and Design of Microsystems and Microstructures, MicroSIM '95, which was held in Southampton, UK, in September 1995] / [organised by: Wessex Institute of Technology, UK]. Ed.: R. A. Adey
Y1  - 1995
SN  - 1-85312-390-0
SP  - 275
PB  - Computational Mechanics Publ.
CY  - Southampton [u.a.]
ER  - 
TY  - JOUR
A1  - Kämper, Klaus-Peter
A1  - Döpper, J.
A1  - Ehrfeld, W.
A1  - Oberbeck, S.
T1  - A self-filling low-cost membrane micropump
JF  - Proceedings : an investigation of micro structures, sensors, actuators, machines and systems / sponsored by the IEEE Robotics and Automation Society in cooperation with the ASME Dynamic Systems and Control Division
Y1  - 1998
SN  - 078034412X
N1  - International Workshop on Micro-Electro-Mechanical Systems <11, 1998, Heidelberg>
SP  - 432
EP  - 437
PB  - IEEE Service Center
CY  - Piscataway, NJ
ER  - 
TY  - JOUR
A1  - Kämper, Klaus-Peter
A1  - Ehrfeld, W.
A1  - Döpper, J.
A1  - Hessel, V.
T1  - Microfluidic components for biological and chemical microreactors. Kämper, K.-P.; Ehrfeld, W.; Döpper, J.; Hessel, V.; Lehr, H.; Löwe, H.; Richter, T.; Wolf, A.
JF  - Proceedings : an investigation of micro structures, sensors, actuators, machines and robots ; Nagoya, Japan, January 26 - 30, 1997 / IEEE Robotics and Automation Society ...
Y1  - 1997
SN  - 0-7803-3744-1
N1  - International Workshop on Micro-Electro-Mechanical Systems <10, 1997, Nagoya>
SP  - 338
EP  - 343
PB  - IEEE Service Center
CY  - Piscataway, NJ
ER  - 
TY  - JOUR
A1  - Kämper, Klaus-Peter
A1  - Ehrfeld, W.
A1  - Hagemann, B.
A1  - Lehr, H.
T1  - Electromagnetic permanent magnet micromotor with integrated micro gear box. Kämper, K.-P.; Ehrfeld, W.; Hagemann, B.; Lehr, H.; Michel, F.; Schirling, A.; Thürigen, C.; Wittig, T.
JF  - Actuator 96 : Conference Proceedings ; 5th International Conference on New Actuators ; 26- 28 June, Bremen, Germany / Ed.: Hubert Borgmann. Publ. by: AXON Technology Consult GmbH
Y1  - 1996
N1  - International Conference on New Actuators <5, 1996, Bremen>
SP  - 429
CY  - Bremen
ER  - 
TY  - JOUR
A1  - Kämper, Klaus-Peter
A1  - Ehrfeld, W.
A1  - Hessel, V.
A1  - Lacher, M.
T1  - Market oriented development and production of microdevices. Ehrfeld, W.; Hessel, V.; Kämper, K.-P.; Lacher, M.; Picard, A.; Schmidt, M.; Schulz, C.
JF  - Proceedings : 21th International Conference on Microelectronics : MIEL '97 ; Niš, Yugoslavia, 14-17 September 1997. Vol. 1
Y1  - 1997
SN  - 0-7803-3664-X
SP  - 71
EP  - 79
PB  - IEEE Service Center
CY  - Piscataway, NJ
ER  - 
TY  - JOUR
A1  - Kämper, Klaus-Peter
A1  - Hagemann, B.
A1  - Lehr, H.
A1  - Michel, F.
T1  - LIGA Example 2: Electromagnetic Micromotor. Hagemann, B.; Kämper, K.-P.; Lehr, H.; Michel, F.; Thürigen, C.
JF  - LIGA technique / Hans-Dieter Bauer (ed.). [Developed by UETP-MEMS, University Training Partnership for Micro-Electro-Mechanical Systems ...]. - 2.ed.
Y1  - 1995
N1  - University Enterprise Training Partnership for Micro-Electro-Mechanical Systems
SP  - 100
EP  - 110
PB  - FSRM
CY  - Neuchatel
ER  - 
TY  - JOUR
A1  - Kämper, Klaus-Peter
A1  - Kurzawa, R.
A1  - Schmitt, W.
A1  - Güntherodt, G.
T1  - Spin-resolved photoemission study of in situ grown epitaxial Fe layers on W(110). Kurzawa, R.; Kämper, K.-P.; Schmitt, W.; Güntherodt, G.
JF  - Solid State Communications. 60 (1986), H. 10
Y1  - 1986
SN  - 0038-1098
SP  - 777
EP  - 780
ER  - 
TY  - JOUR
A1  - Kämper, Klaus-Peter
A1  - Lehr, H.
A1  - Abel, S.
A1  - Döpper, J.
T1  - Microactuators as driving units for microrobotic systems. Herstellung von Mikroaktoren mit dem LIGA-Verfahren für Mikroroboter  / Lehr, H.; Abel, S.; Döpper, J.; Ehrfeld, W.; Hagemann, B.; Kämper, K.-P.; Michel, F.; Schulu, c.; Thürigen, C.
JF  - Proceedings of the SPIE - The International Society for Optical Engineering
Y1  - 1996
SN  - 0277-786X
N1  - Konferenz-Einzelbericht.
SP  - 202
EP  - 210
ER  - 
TY  - JOUR
A1  - Kämper, Klaus-Peter
A1  - Lehr, H.
A1  - Abel, S.
A1  - Ehrfeld, W.
T1  - Assembly of Electromagnetic Milliactuators with LIGA Components. Lehr, H.; Abel, S.; Ehrfeld, W.; Hagemann, B.; Kämper, K.-P.; Michel, F.; Thürigen, C.
JF  - Proceedings 2nd Japan-France Congress on Mechatronics, Takamatsu (Kagawa, Japan) 1.-3. November 1994, 31 (1994)
Y1  - 1995
N1  - 2nd Japan-France Congress on mechatronics (1994 Nov : Takamatsu, Japan)
SP  - 31
EP  - 31
PB  - Fuji Technology Press
ER  - 
TY  - JOUR
A1  - Kämper, Klaus-Peter
A1  - Lehr, H.
A1  - Ehrfeld, W.
A1  - Hagemann, B.
T1  - Development of micro and millimotors. Lehr, H.; Ehrfeld, W.; Hagemann, B.; Kämper, K.-P.; Michel, F.; Schulz, C.; Thürigen C.
JF  - Minimally Invasive Therapy and Allied Technologies. 6 (1997)
Y1  - 1997
SN  - 1364-5706
ER  - 
TY  - JOUR
A1  - Kämper, Klaus-Peter
A1  - Lehr, H.
A1  - Ehrfeld, W.
A1  - Michel, F.
T1  - LIGA Components for the Construction of Milliactuators. Lehr, H.; Ehrfeld, W.; Kämper, K.-P.; Michel, F.; Schmidt, M.
JF  - 1994 IEEE Symposium on Emerging Technologies & Factory Automation : novel disciplines for the next century ; proceedings, November 6 - 10, 1994, Tokyo, Japan / ETFA '94. Hiroyuki Fujita [chairman] ... Sponsored by: Institute of Industrial Science, SEIKEN
Y1  - 1994
SN  - 0780321146
SP  - 43
EP  - 47
CY  - Piscataway, N.J.
ER  - 
TY  - JOUR
A1  - Kämper, Klaus-Peter
A1  - Pappas, D. P.
A1  - Hopster, H.
T1  - Reversible transition between perpendicular and in-plane magnetization in ultrathin films. Pappas, D. P.; Kämper, K.-P.; Hopster, H.
JF  - Physical Review Letters. 64 (1990), H. 26
Y1  - 1990
SN  - 1079-7114
SP  - 3179
EP  - 3182
ER  - 
TY  - JOUR
A1  - Kämper, Klaus-Peter
A1  - Pappas, D. P.
A1  - Miller, B. P.
A1  - Hopster, H.
T1  - Spin-dependent electron attenuation by transmission through thin ferromagnetic films . Pappas, D. P.; Kämper,K.-P.; Miller, B. P.; Hopster, H.; Fowler, D. E.; Brundle, C. R.; Luntz, A. C.; Shen, Z.-X.
JF  - Physical Review Letters. 66 (1991), H. 4
Y1  - 1991
SN  - 1079-7114
SP  - 504
EP  - 507
ER  - 
TY  - JOUR
A1  - Kämper, Klaus-Peter
A1  - Pappas, D. P.
A1  - Miller, B. P.
A1  - Hopster, H.
T1  - Magnetism of ultrathin films of Fe on Cu(100). Pappas, D. P; Kämper, K.-P.; Miller, B. P.; Hopster, H.; Fowler, D. E.; Luntz, A. C.; Brundle, C.R.; Shen, Z.-X.
JF  - Journal of Applied Physics. 69 (1991), H. 8
Y1  - 1991
SN  - 1089-7550
SP  - 5209
EP  - 521
ER  - 
TY  - JOUR
A1  - Kämper, Klaus-Peter
A1  - Picard, A.
A1  - Schütze, A.
A1  - Wallach, D.
T1  - Adopting the Foundry Concept of Semiconductor Fabrication on Educational Schemes and the Virtual Technology Lab (VTL). Picard, A.; Kämper, K.-P.; Schütze, A.; Wallach, D.; Walter, T.
JF  - Mst-News (2006)
Y1  - 2006
SN  - 0948-3128
SP  - 15, 16
EP  - u. 35
ER  - 
TY  - JOUR
A1  - Kämper, Klaus-Peter
A1  - Picard, Antoni
A1  - Brill, Manfred
A1  - Cassel, Detlef (u.a.)
T1  - The Virtual Cleanroom – a new tool in teaching MST process technologies
JF  - mst news International newsletter on micro - nano Integration (2003)
Y1  - 2003
SN  - 0948-3128
SP  - 35
EP  - 36
ER  - 
TY  - JOUR
A1  - Kämper, Klaus-Peter
A1  - Schmitt, W.
A1  - Güntherodt, G.
T1  - The influence of adsorbates on the spin-resolved photoemission of Ni(110). Schmitt, W.; Kämper, K.-P.; Güntherodt, G.
JF  - Surface Science. 189/190 (1987)
Y1  - 1987
SN  - 0039-6028
N1  - Proceedings of the Ninth European Conference on Surface Science
SP  - 741
EP  - 507
ER  - 
TY  - JOUR
A1  - Kämper, Klaus-Peter
A1  - Schmitt, W.
A1  - Güntherodt, G.
T1  - Effect of adsorbates on the spin-polarized photoemission of itinerant ferromagnets. Schmitt, W.; Kämper, K.-P.; Güntherodt, G.
JF  - Physical Review B. 36 (1987), H. 7
Y1  - 1987
SN  - 1095-3795
SP  - 3763
EP  - 3768
ER  - 
TY  - JOUR
A1  - Kämper, Klaus-Peter
A1  - Schmitt, W.
A1  - Güntherodt, G.
T1  - Thickness dependence of the electronic structure of ultrathin, epitaxial Ni(111)/W(110) layers.
JF  - Physical Review B. 38 (1988), H. 14
Y1  - 1988
SN  - 1095-3795
SP  - 9451
EP  - 9456
ER  - 
TY  - JOUR
A1  - Kämper, Klaus-Peter
A1  - Schmitt, W.
A1  - Güntherodt, G.
T1  - Temperature and wave-vector dependence of the spin-split band structure of Ni(111) along the &#915;-L line
JF  - Physical Review B. 42 (1990), H. 16
Y1  - 1990
SN  - 1095-3795
SP  - 10696
EP  - 10705
ER  - 
TY  - JOUR
A1  - Kämper, Klaus-Peter
A1  - Schmitt, W.
A1  - Güntherodt, G.
T1  - Temperature dependence of the exchange splitting of Ni along the &#61511;-L line
JF  - Journal de physique. 49 (1988), H. 12. Supplement, Colloque C8
Y1  - 1988
N1  - Proceedings of the International conference on Magnetism. Part 1. ICM 88, Paris, France, Juli 25-29, 1988
SP  - 39
EP  - 40
ER  - 
TY  - JOUR
A1  - Kämper, Klaus-Peter
A1  - Schmitt, W.
A1  - Güntherodt, G.
A1  - Gambino, R. J.
T1  - CrO2—A New Half-Metallic Ferromagnet? Kämper, K.-P.; Schmitt, W.; Güntherodt, G.; Gambino, R. J., Ruf, R.
JF  - Physical Review Letters. 59 (1987), H. 24
Y1  - 1987
SN  - 1079-7114
SP  - 2788
EP  - 2791
ER  - 
TY  - JOUR
A1  - Kämper, Klaus-Peter
A1  - Schmitt, W.
A1  - Wesner, D. A.
A1  - Güntherodt, G.
T1  - Thickness dependence of the spin- and angle-resolved photoemission of ultrathin, epitaxial Ni(111)/W(110) layers
JF  - Applied Physics A: Materials Science and Processing. 49 (1989), H. 6
Y1  - 1989
SN  - 1432-0630
SP  - 573
EP  - 578
ER  - 
TY  - JOUR
A1  - Kämper, Klaus-Peter
A1  - Schulz, C.
A1  - Ehrfeld, W.
A1  - Erbel, R.
T1  - LIGA Fabricated Microsystems for Medical and Related Applications. Schulz, C.; Ehrfeld, W.; Erbel, R.; Kämper, K.-P.; Koch, L.; Lehr, H.; Roth, T.
JF  - 3-Day Course on Microengineering in Medicine and Biology and its Applications to Minimally Invasive Techniques for Therapy and Medical Diagnosis : EURO-BME 94; October 5, 6, and 7, 1994, Swiss Federal Institute of Technology, EPFL, Lausanne, Switzerland / [the 1994 EURO-BME Microengineering in Medicine and Biology Training Course. Staff: Christian D. Depeursinge ...]
Y1  - 1994
N1  - Microengineering in Medicine and Biology Training Course 1994, Lausanne
PB  - REPRO EPFL
CY  - Lausanne
ER  - 
TY  - JOUR
A1  - Leidinger, Rafael
A1  - Noisten, Thomas
A1  - Wollert, Jörg
T1  - Realtime automation networks in moVing industrial environments
JF  - Journal of systemics, cybernetics and informatics
N2  - The radio-based wireless data communication has made the realization of new technical solutions possible in many fields of the automation technology (AT). For about ten years, a constant disproportionate growth of wireless technologies can be observed in the automation technology.
However, it shows that especially for the AT, conventional technologies of office automation are unsuitable and/or not manageable. The employment of mobile services in the industrial automation technology has the potential of significant cost and time savings. This leads to an increased productivity in various fields of the AT, for example in the factory and process automation or in production logistics. In this paper technologies and solutions for an automation-suited supply of mobile wireless services will be introduced under the criteria of real time suitability, IT-security and service orientation.
Emphasis will be put on the investigation and development of wireless convergence layers for different radio technologies, on the central provision of support services for an easy-to-use, central, backup enabled management of combined wired / wireless networks and on the study on integrability in a Profinet real-time Ethernet network.
KW  - PROFINET
KW  - Distributed Control Systems,
KW  - Industrial Automation Technology,
KW  - 802.15.4
KW  - Bluetooth
KW  - Wireless Networks
Y1  - 2012
SN  - 1690-4532
VL  - Vol. 10
IS  - Iss. 2
SP  - 52
EP  - 56
PB  - IIIC
CY  - Orlando
ER  - 
TY  - JOUR
A1  - Luft, Angela
A1  - Luft, Nils
A1  - Arntz, Kristian
T1  - A basic description logic for service-oriented architecture in factory planning and operational control in the age of industry 4.0
JF  - Applied Sciences
N2  - Manufacturing companies across multiple industries face an increasingly dynamic and unpredictable environment. This development can be seen on both the market and supply side. To respond to these challenges, manufacturing companies must implement smart manufacturing systems and become more flexible and agile. The flexibility in operational planning regarding the scheduling and sequencing of customer orders needs to be increased and new structures must be implemented in manufacturing systems’ fundamental design as they constitute much of the operational flexibility available. To this end, smart and more flexible solutions for production planning and control (PPC) are developed. However, scheduling or sequencing is often only considered isolated in a predefined stable environment. Moreover, their orientation on the fundamental logic of the existing IT solutions and their applicability in a dynamic environment is limited. This paper presents a conceptual model for a task-based description logic that can be applied to factory planning, technology planning, and operational control. By using service-oriented architectures, the goal is to generate smart manufacturing systems. The logic is designed to allow for easy and automated maintenance. It is compatible with the existing resource and process allocation logic across operational and strategic factory and production planning.
KW  - manufacturing data model
KW  - production planning and control
KW  - manufacturing flexibility
KW  - technology planning
KW  - SOA
KW  - service-oriented architectures
KW  - factory planning
Y1  - 2023
U6  - http://dx.doi.org/10.3390/app13137610
N1  - This article belongs to the Special Issue "Smart Industrial System"
VL  - 2023
IS  - 13
PB  - MDPI
CY  - Basel
ER  - 
TY  - JOUR
A1  - Mautner, Karin
A1  - Forster, Ralf
A1  - Kornhuber, Ralf
A1  - Sander, Oliver
T1  - Fast and Reliable Pricing of American Options with Local Volatility / Forster, Ralf ; Kornhuber, Ralf ; Mautner, Karin ; Sander, Oliver
JF  - Domain Decomposition Methods in Science and Engineering XVII
Y1  - 2008
SN  - 978-3-540-75198-4
N1  - Lecture Notes in Computational Sciece and Engineering ; 60
SP  - 383
EP  - 390
ER  - 
TY  - JOUR
A1  - Michaux, F.
A1  - Mattern, P.
A1  - Kallweit, Stephan
T1  - RoboPIV: how robotics enable PIV on a large industrial scale
JF  - Measurement Science and Technology
N2  - This work demonstrates how the interaction between particle image velocimetry (PIV) and robotics can massively increase measurement efficiency. The interdisciplinary approach is shown using the complex example of an automated, large scale, industrial environment: a typical automotive wind tunnel application. Both the high degree of flexibility in choosing the measurement region and the complete automation of stereo PIV measurements are presented. The setup consists of a combination of three robots, individually used as a 6D traversing unit for the laser illumination system as well as for each of the two cameras. Synchronised movements in the same reference frame are realised through a master-slave setup with a single interface to the user. By integrating the interface into the standard wind tunnel management system, a single measurement plane or a predefined sequence of several planes can be requested through a single trigger event, providing the resulting vector fields within minutes.

In this paper, a brief overview on the demands of large scale industrial PIV and the existing solutions is given. Afterwards, the concept of RoboPIV is introduced as a new approach. In a first step, the usability of a selection of commercially available robot arms is analysed. The challenges of pose uncertainty and importance of absolute accuracy are demonstrated through comparative measurements, explaining the individual pros and cons of the analysed systems. Subsequently, the advantage of integrating RoboPIV directly into the existing wind tunnel management system is shown on basis of a typical measurement sequence. In a final step, a practical measurement procedure, including post-processing, is given by using real data and results. Ultimately, the benefits of high automation are demonstrated, leading to a drastic reduction in necessary measurement time compared to non-automated systems, thus massively increasing the efficiency of PIV measurements.
Y1  - 2018
U6  - http://dx.doi.org/10.1088/1361-6501/aab5c1
SN  - 1361-6501
N1  - Special Section on the 12th International Symposium on Particle Image Velocimetry (PIV 2017)
VL  - 29
IS  - 7
SP  - 074009
PB  - IOP
CY  - Bristol
ER  - 
TY  - JOUR
A1  - Mukherjee, Krishnendu
A1  - Prahl, Ulrich
A1  - Bleck, Wolfgang
A1  - Reisgen, Uwe
A1  - Schleser, Markus
A1  - Abdurakhmanov, Aydemir
T1  - Characterization and modelling techniques for gas metal arc welding of DP 600 sheet steels
JF  - Materialwissenschaft und Werkstofftechnik
N2  - The objectives of the present work are to characterize the Gas Metal Arc Welding process of DP 600 sheet steel and to summarize the modelling techniques. The time-temperature evolution during the welding cycle was measured experimentally and modelled with the softwaretool SimWeld. To model the phase transformations during the welding cycle dilatometer tests were done to quantify the parameters for phase field modelling by MICRESS®. The important input parameters are interface mobility, nucleation density, etc. A contribution was made to include austenite to bainite transformation in MICRESS®. This is useful to predict the microstructure in the fast cooling segments. The phase transformation model is capable to predict the microstructure along the heating and cooling cycles of welding. Tensile tests have shown the evidence of failure at the heat affected zone, which has the ferrite-tempered martensite microstructure.
Y1  - 2010
U6  - http://dx.doi.org/10.1002/mawe.201000692
SN  - 1521-4052
VL  - 41
IS  - 11
SP  - 972
EP  - 983
PB  - Wiley-VCH
CY  - Weinheim
ER  - 
TY  - JOUR
A1  - Mukherjee, Krishnendu
A1  - Ramazani, Ali
A1  - Yang, Li
A1  - Prahl, Ulrich
A1  - Bleck, Wolfgang
A1  - Reisgen, Uwe
A1  - Schleser, Markus
A1  - Abdurakhmanov, Aydemir
T1  - Characterization of gas metal arc welded hot rolled DP600 steel
JF  - Steel research international
Y1  - 2011
SN  - 1869-344X (E-Book); 1611-3683 (Print)
VL  - Vol. 82
IS  - Iss. 12
SP  - 1408
EP  - 1416
PB  - Wiley
CY  - Weinheim
ER  - 
TY  - JOUR
A1  - Panc, Nicolae
A1  - Contiu, Glad
A1  - Bocanet, Vlad
A1  - Thurn, Laura
A1  - Sabau, Emilia
T1  - The influence of cutting technology on surface wear hardness
JF  - Academic Journal of Manufacturing Engineering
Y1  - 2019
SN  - 1583-7904
VL  - 17
IS  - 3
SP  - 205
EP  - 210
ER  - 
TY  - JOUR
A1  - Pfaff, Raphael
T1  - Braking distance prediction for vehicle consist in low-speed on-sight operation: a Monte Carlo approach
JF  - Railway Engineering Science
N2  - The first and last mile of a railway journey, in both freight and transit applications, constitutes a high effort and is either non-productive (e.g. in the case of depot operations) or highly inefficient (e.g. in industrial railways). These parts are typically managed on-sight, i.e. with no signalling and train protection systems ensuring the freedom of movement. This is possible due to the rather short braking distances of individual vehicles and shunting consists. The present article analyses the braking behaviour of such shunting units. For this purpose, a dedicated model is developed. It is calibrated on published results of brake tests and validated against a high-definition model for low-speed applications. Based on this model, multiple simulations are executed to obtain a Monte Carlo simulation of the resulting braking distances. Based on the distribution properties and established safety levels, the risk of exceeding certain braking distances is evaluated and maximum braking distances are derived. Together with certain parameters of the system, these can serve in the design and safety assessment of driver assistance systems and automation of these processes.
KW  - Freight rail
KW  - Shunting
KW  - Braking curves
KW  - Brake set-up
KW  - Driver assistance system
Y1  - 2023
U6  - http://dx.doi.org/10.1007/s40534-023-00303-7
SN  - 2662-4753 (eISSN)
SN  - 2662-4745 (Print)
VL  - 31
IS  - 2
SP  - 135
EP  - 144
PB  - SpringerOpen
ER  - 
TY  - JOUR
A1  - Pfaff, Raphael
A1  - Burnham, Keith J.
T1  - On abstraction and interpretability: a behavioural perspective
JF  - Systems Science
Y1  - 2009
SN  - 0137-1223
VL  - Vol. 35
IS  - Iss. 2
SP  - 19
EP  - 26
ER  - 
TY  - JOUR
A1  - Raffeis, Iris
A1  - Adjei-Kyeremeh, Frank
A1  - Vroomen, Uwe
A1  - Westhoff, Elmar
A1  - Bremen, Sebastian
A1  - Hohoi, Alexandru
A1  - Bührig-Polaczek, Andreas
T1  - Qualification of a Ni-Cu alloy for the laser powder bed fusion process (LPBF): Its microstructure and mechanical properties
JF  - Applied Sciences
N2  - As researchers continue to seek the expansion of the material base for additive manufacturing, there is a need to focus attention on the Ni–Cu group of alloys which conventionally has wide industrial applications. In this work, the G-NiCu30Nb casting alloy, a variant of the Monel family of alloys with Nb and high Si content is, for the first time, processed via the laser powder bed fusion process (LPBF). Being novel to the LPBF processes, optimum LPBF parameters were determined, and hardness and tensile tests were performed in as-built conditions and after heat treatment at 1000 °C. Microstructures of the as-cast and the as-built condition were compared. Highly dense samples (99.8% density) were achieved after varying hatch distance (80 µm and 140 µm) with scanning speed (550 mm/s–1500 mm/s). There was no significant difference in microhardness between varied hatch distance print sets. Microhardness of the as-built condition (247 HV0.2) exceeded the as-cast microhardness (179 HV0.2.). Tensile specimens built in vertical (V) and horizontal (H) orientations revealed degrees of anisotropy and were superior to conventionally reported figures. Post heat treatment increased ductility from 20% to 31% (V), as well as from 16% to 25% (H), while ultimate tensile strength (UTS) and yield strength (YS) were considerably reduced.
Y1  - 2020
U6  - http://dx.doi.org/10.3390/app10103401
SN  - 2076-3417
N1  - Special Issue Materials Development by Additive Manufacturing Techniques
VL  - 10
IS  - Art. 3401
SP  - 1
EP  - 15
PB  - MDPI
CY  - Basel
ER  - 
TY  - JOUR
A1  - Ramazani, Ali
A1  - Li, Yang
A1  - Mukherjee, Krishnendu
A1  - Prahl, Ulrich
A1  - Bleck, Wolfgang
A1  - Abdurakhmanov, Aydemir
A1  - Schleser, Markus
A1  - Reisgen, Uwe
T1  - Microstructure evolution simulation in hot rolled DP600 steel during gas metal arc welding
JF  - Computational materials science
Y1  - 2013
SN  - 1879-0801 (E-Book); 0927-0256 (Print)
VL  - Vol. 68
SP  - 107
EP  - 116
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Reisgen, Uwe
A1  - Olschok, Simon
A1  - Jakobs, Stefan
A1  - Schleser, Markus
A1  - Mokrov, Oleg
A1  - Rossiter, Eduardo
T1  - Laser beam submerged arc hybrid welding
JF  - Physics procedia
N2  - The laser beam-submerged arc hybrid welding method originates from the knowledge that, with increasing penetration depth, the laser beam process has a tendency to pore formation in the lower weld regions. The coupling with the energy-efficient submerged-arc process improves degassing and reduces the tendency to pore formation. The high deposition rate of the SA process in combination with the laser beam process offers, providing the appropriate choice of weld preparation, the possibility of welding plates with a thickness larger than 20° mm in a single pass, and also of welding thicker plates with the double-sided single pass technique.
Y1  - 2012
U6  - http://dx.doi.org/10.1016/j.phpro.2012.10.016
SN  - 1875-3892
N1  - Part of special issue "Laser assisted net shape engineering 7 (LANE 2012)"
VL  - 39
SP  - 75
EP  - 83
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Reisgen, Uwe
A1  - Schleser, Markus
A1  - Abdurakhmanov, Aydemir
A1  - Gumenyuk, Andrey
T1  - Measuring of plasma properties induced by non-vacuum electron beam welding
JF  - Physics of plasma
N2  - Electron beam plasma measurement was realised by means of DIABEAM system invented by ISF RWTH Aachen. The Langmuir probe method is used for measurement. The relative simplicity of the method and the possibility of dispersion of high power on the probe allow its application for the investigation of high-power electron beams. The key element of the method is a rotating thin tungsten wire, which intersects the beam transversely on its axis and collects part of the current by itself. The signals, which are registered in the DIABEAM as a voltage, were taken in the form of amplitude. The conversion of the probe current into the distribution along the beam radius was realised using the Abel’s method. A voltage-current characteristic was built for the beam current. The local electron density as well as the electron temperature, the floating potential and the plasma potential were measured and calculated by means of this characteristic.
Y1  - 2012
U6  - http://dx.doi.org/10.1063/1.3675874
SN  - 1089-7674 (E-Journal); 1070-664X (Print)
VL  - 19
IS  - 1
SP  - 1
EP  - 7
PB  - AIP Publishing
CY  - Melville, NY
ER  - 
TY  - JOUR
A1  - Reisgen, Uwe
A1  - Schleser, Markus
A1  - Mokrov, Oleg
A1  - Ahmed, Essam
T1  - Statistical modeling of laser welding of DP/TRIP steel sheets
JF  - Optics and laser technology
N2  - In this research work, a statistical analysis of the CO2 laser beam welding of dual phase (DP600)/transformation induced plasticity (TRIP700) steel sheets was done using response surface methodology. The analysis considered the effect of laser power (2–2.2 kW), welding speed (40–50 mm/s) and focus position (−1 to 0 mm) on the heat input, the weld bead geometry, uniaxial tensile strength, formability limited dome height and welding operation cost. The experimental design was based on Box–Behnken design using linear and quadratic polynomial equations for predicting the mathematical models. The results indicate that the proposed models predict the responses adequately within the limits of welding parameters being used and the welding speed is the most significant parameter during the welding process.
Y1  - 2012
U6  - http://dx.doi.org/10.1016/j.optlastec.2011.05.025
SN  - 1879-2545 (E-Journal); 0030-3992 (Print); 0308-4280 (Print)
VL  - 44
IS  - 1
SP  - 92
EP  - 101
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Reisgen, Uwe
A1  - Schleser, Markus
A1  - Mokrov, Oleg
A1  - Ahmed, Essam
T1  - Optimization of laser welding of DP/TRIP steel sheets using statistical approach
JF  - Optics and laser technology
N2  - Generally, the quality of a weld joint is directly influenced by the welding input parameter settings. Selection of proper process parameters is important to obtain the desired weld bead profile and quality. In this research work, numerical and graphical optimization techniques of the CO2 laser beam welding of dual phase (DP600)/transformation induced plasticity (TRIP700) steel sheets were carried out using response surface methodology (RSM) based on Box–Behnken design. The procedure was established to improve the weld quality, increase the productivity and minimize the total operation cost by considering the welding parameters range of laser power (2–2.2 kW), welding speed (40–50 mm/s) and focus position (−1 to 0 mm). It was found that, RSM can be considered as a powerful tool in experimental welding optimization, even when the experimenter does not have a model for the process. Strong, efficient and low cost weld joints could be achieved using the optimum welding conditions.
Y1  - 2012
U6  - http://dx.doi.org/10.1016/j.optlastec.2011.06.028
SN  - 1879-2545 (E-Journal); 0030-3992 (Print); 0308-4280 (Print)
VL  - 44
IS  - 1
SP  - 255
EP  - 262
PB  - Elsevier
CY  - Amsterdam
ER  -