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  - CHAP
A1  - Hartmann, Axel
A1  - Kallweit, Stephan
A1  - Feldusen, Antje
A1  - Schröder, Wolfgang
T1  - Detection of upstream propagating sound waves at buffet flow using high-speed PIV
BT  - 16th International Symposium on Applications of Laser Techniques to Fluid Mechanics ; 9th to 12th July 2012 Lisbon, Portugal
Y1  - 2012
N1  - Aerodynamisches Institut <Aachen> ; International Symposium on Applications of Laser Techniques to Fluid Mechanics <16, 2012, Lissabon>
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  - CHAP
A1  - Huber, Frédéric
A1  - Bleck, Wolfgang
A1  - Scheik, Sven
A1  - Schleser, Markus
A1  - Reisgen, Uwe
T1  - Investigation of galvanneal coating adherence in adhesive bonded joints using lap shear test
T2  - Galvatech 2011 : 8th International Conference on Zinc and Zinc Alloy Coated Steel Sheet, June 21 - 24, 2011, Genova (Italy) ; proceedings
Y1  - 2011
SN  - 978-88-85298-82-8
SP  - Paper No. 43
PB  - Associazione Italiana di Metallurgia
CY  - Mailand
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  - CHAP
A1  - Kallweit, Stephan
A1  - Gottschalk, Michael
A1  - Walenta, Robert
T1  - ROS based safety concept for collaborative robots in industrial applications
T2  - Advances in robot design and intelligent control : proceedings of the 24th International Conference on Robotics in Alpe-Adria-Danube Region (RAAD). (Advances in intelligent systems and computing ; 371)
N2  - The production and assembly of customized products increases the demand for flexible automation systems. One approach is to remove the safety fences that separate human and industrial robot to combine their skills. This collaboration possesses a certain risk for the human co-worker, leading to numerous safety concepts to protect him. The human needs to be monitored and tracked by a safety system using different sensors. The proposed system consists of a RGBD camera for surveillance of the common working area, an array of optical distance sensors to compensate shadowing effects of the RGBD camera and a laser range finder to detect the co-worker when approaching the work cell. The software for collision detection, path planning, robot control and predicting the behaviour of the co-worker is based on the Robot Operating System (ROS). A first prototype of the work cell shows that with advanced algorithms from the field of mobile robotics a very flexible safety concept can be realized: the robot not simply stops its movement when detecting a collision, but plans and executes an alternative path around the obstacle.
KW  - Collaborative robot
KW  - Human-Robot interaction
KW  - Safety concept
KW  - Workspace monitoring
KW  - Path planning
Y1  - 2016
SN  - 978-3-319-21289-0 (Print) ; 978-3-319-21290-6 (E-Book)
U6  - http://dx.doi.org/10.1007/978-3-319-21290-6_3
SP  - 27
EP  - 35
PB  - Springer
CY  - Cham
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  -