TY - CHAP
A1 - Kapoor, Hrshi
A1 - Braun, Carsten
A1 - Boller, Christian
ED - Casciati, Fabio
T1 - Modelling and optimisation of maintenance intervals to realize structural health monitoring applications on aircraft
T2 - Structural health monitoring 2010 : proceedings of the Fifth European Workshop on Structural Health Monitoring held at Sorrento, Naples, Italy, June 28 - July 4, 2010 ; [EWSHM]
Y1 - 2010
SN - 978-1-60595-024-2
SP - 55
EP - 63
PB - DEStech Publ.
CY - Lancaster, Pa.
ER -
TY - CHAP
A1 - Kapoor, Hrshi
A1 - Boller, Christian
A1 - Giljohann, Sebastian
A1 - Braun, Carsten
T1 - Strategies for structural health monitoring implementation potential assessment in aircraft operational life extension considerations
T2 - 2nd International Symposium on NDT in Aerospace : November 22-24, 2010 Hamburg, Germany
Y1 - 2010
SN - 978-3-940283-28-3
PB - Dt. Gesellschaft für Zerstörungsfreie Prüfung
CY - Berlin
ER -
TY - JOUR
A1 - Kapelyukh, Yury
A1 - Henderson, Colin James
A1 - Scheer, Nico
A1 - Rode, Anja
A1 - Wolf, Charles Roland
T1 - Defining the contribution of CYP1A1 and CYP1A2 to drug metabolism using humanized CYP1A1/1A2 and Cyp1a1/Cyp1a2 KO mice
JF - Drug Metabolism and Disposition
Y1 - 2019
U6 - https://doi.org/10.1124/dmd.119.087718
IS - Early view
ER -
TY - JOUR
A1 - Kaminsky, Randolph
A1 - Weber, Hans-Joachim
A1 - Simons, Antoine
A1 - Kallweit, Stephan
A1 - Kramm, K.
A1 - Verdonck, Pascale
T1 - Comparison of the flow downstream two prototypes of a new monoleaflet artificial aortic heart valve by means of PIV visualization
JF - Computer methods in biomechanics and biomedical engineering. 8 (2005), H. 4, Suppl. 1
Y1 - 2005
SN - 1476-8259
SP - 159
EP - 160
ER -
TY - JOUR
A1 - Kaminsky, Randolph
A1 - Simons, Antoine
A1 - Gatzweiler, Karl-Heinz
A1 - Weber, Hans-Joachim
T1 - Flow visualization by means of PIV of an artificial aortic heart valve fixed into a mock aorta
JF - Acta Mechanica Slovaka 2-A. 9 (2005)
Y1 - 2005
SP - 343
EP - 348
ER -
TY - BOOK
A1 - Kaminsky, Radoslav
A1 - Kallweit, Stephan
A1 - Weber, Hans-Joachim
A1 - Simons, Antoine
A1 - Verdonck, Pascal
T1 - Stereo high speed PIV measurements behind two different artificial heart valves
Y1 - 2006
N1 - International Symposium on Applications of Laser Techniques to Fluid Mechanics <13, 2006, Lisboa>
ER -
TY - JOUR
A1 - Kaminsky, Radoslav
A1 - Kallweit, Stephan
A1 - Weber, Hans-Joachim
A1 - Simons, Antoine
A1 - Kramm, K.
A1 - Jazwik, K.
A1 - Moll, J.
A1 - Verdonck, P.
T1 - 3D high speed piv assessment of a new aortic heart valve prototype
JF - Journal of biomechanics. 39 (2006), H. Supplement 1
Y1 - 2006
SN - 0021-9290
N1 - World Congress of Biomechanics <5, 2006, München>: Abstracts of the 5th World Congress of Biomechanics
SP - S304
EP - S305
PB - -
ER -
TY - JOUR
A1 - Kaminsky, Radoslav
A1 - Kallweit, Stephan
A1 - Weber, Hans-Joachim
A1 - Claessens, Tom
A1 - Jozwik, Krzystof
A1 - Verdonck, Pascal
T1 - Flow visualization through two types of aortic prosthetic heart valves using stereoscopic high-speed particle image velocimetry
JF - Artificial organs. 31 (2007), H. 12
Y1 - 2007
SN - 1525-1594
SP - 869
EP - 879
ER -
TY - JOUR
A1 - Kaminsky, Radoslav
A1 - Dumont, K.
A1 - Weber, Hans-Joachim
A1 - Schroll, M.
A1 - Verdonck, P.
T1 - PIV validation of blood-heart valve leaflet interaction modelling
JF - The International journal of artificial organs. 30 (2007), H. 7
Y1 - 2007
SP - 640
EP - 648
PB - -
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 - 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 - 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 - 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 - 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 - 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, 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 - 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 - 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 - https://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 - 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 - 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 - CHAP
A1 - Kalker, Ines
A1 - Toll, B.
A1 - Holler, Stefan
A1 - Butenweg, Christoph
A1 - Topping, B. H. V.
A1 - Mota Soares, C. A.
T1 - Capacity analysis of textile retrofitted unreinforced masonry
T2 - Proceedings of the Seventh International Conference on Computational Structures Technology : [Lisbon, Portugal, 7 - 9 September 2004] / ed. by B. H. V. Topping ...
Y1 - 2004
SN - 0-948749-95-4
U6 - https://doi.org/10.4203/ccp.79.194
SP - 431
EP - 432
PB - Civil-Comp Press
CY - Stirling
ER -
TY - CHAP
A1 - Kalker, Ines
A1 - Neumann, M.
A1 - Butenweg, Christoph
A1 - Holler, Stefan
T1 - Modelling of textile strengthened masonry
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.81.184
SP - 447
EP - 448
PB - Civil-Comp Press
CY - Stirling
ER -
TY - CHAP
A1 - Kalbe, Jochen
A1 - Kuropka, Rolf
A1 - Meyer-Stork, L. Sebastian
A1 - Lauter, S. L.
A1 - Höcker, Hartwig
A1 - Berndt, Heinz
ED - Körner, Andrea
T1 - Identification of fine animal hair via DNA analysis
T2 - Proceedings of the 1st International Symposium on Specialty Animal Fibers : Aachen, October 26 - 27, 1987 ; [scientific, technological and economical aspects] . - (Schriftenreihe des Deutschen Wollforschungsinstitutes an der Technischen Hochschule Aachen e.V. ; 103)
Y1 - 1988
SN - 0930-3723
SP - 221
EP - 227
PB - Dt. Wollforschungsinst.
CY - Aachen
ER -
TY - JOUR
A1 - Kalbe, Jochen
A1 - Kuropka, Rolf
A1 - Meyer-Stork, L. Sebastian
A1 - Berndt, Heinz
A1 - Sauter, Sybille L.
A1 - Loss, Peter
A1 - Hendo, Karsten
A1 - Riesner, Detlev
A1 - Höcker, Hartwig
T1 - Isolation and characterization of high-molecular mass DNA from hair shafts
JF - Biological chemistry
Y1 - 1988
SN - 0177-3593
U6 - https://doi.org/10.1515/bchm3.1988.369.1.413
VL - 369
IS - 1
SP - 413
EP - 416
ER -
TY - JOUR
A1 - Kalbe, Jochen
A1 - Höcker, Hartwig
A1 - Berndt, Heinz
T1 - Design of enzyme reactors as chromatographic columns for racemic resolution of amino acid esters
JF - Chromatographia
Y1 - 1989
SN - 0009-5893
U6 - https://doi.org/10.1007/BF02319646
VL - 28
IS - 3-4
SP - 193
EP - 196
ER -
TY - CHAP
A1 - Kahra, Marvin
A1 - Breuß, Michael
A1 - Kleefeld, Andreas
A1 - Welk, Martin
ED - Brunetti, Sara
ED - Frosini, Andrea
ED - Rinaldi, Simone
T1 - An Approach to Colour Morphological Supremum Formation Using the LogSumExp Approximation
T2 - Discrete Geometry and Mathematical Morphology
N2 - Mathematical morphology is a part of image processing that has proven to be fruitful for numerous applications. Two main operations in mathematical morphology are dilation and erosion. These are based on the construction of a supremum or infimum with respect to an order over the tonal range in a certain section of the image. The tonal ordering can easily be realised in grey-scale morphology, and some morphological methods have been proposed for colour morphology. However, all of these have certain limitations.
In this paper we present a novel approach to colour morphology extending upon previous work in the field based on the Loewner order. We propose to consider an approximation of the supremum by means of a log-sum exponentiation introduced by Maslov. We apply this to the embedding of an RGB image in a field of symmetric 2x2 matrices. In this way we obtain nearly isotropic matrices representing colours and the structural advantage of transitivity. In numerical experiments we highlight some remarkable properties of the proposed approach.
Y1 - 2024
SN - 978-3-031-57793-2
U6 - https://doi.org/10.1007/978-3-031-57793-2_25
N1 - Third International Joint Conference, DGMM 2024, Florence, Italy, April 15–18, 2024
SP - 325
EP - 337
PB - Springer
CY - Cham
ER -
TY - CHAP
A1 - Kahmann, Stephanie Lucina
A1 - Uschok, Stephan
A1 - Wegmann, Kilian
A1 - Müller, Lars-P.
A1 - Staat, Manfred
T1 - Biomechanical multibody model with refined kinematics of the elbow
T2 - 6th European Conference on Computational Mechanics (ECCM 6), 7th European Conference on Computational Fluid Dynamics (ECFD 7), 11-15 June 2018, Glasgow, UK
N2 - The overall objective of this study is to develop a new external fixator, which closely maps the native kinematics of the elbow to decrease the joint force resulting in reduced rehabilitation time and pain. An experimental setup was designed to determine the native kinematics of the elbow during flexion of cadaveric arms. As a preliminary study, data from literature was used to modify a published biomechanical model for the calculation of the joint and muscle forces. They were compared to the original model and the effect of the kinematic refinement was evaluated. Furthermore, the obtained muscle forces were determined in order to apply them in the experimental setup. The joint forces in the modified model differed slightly from the forces in the original model. The muscle force curves changed particularly for small flexion angles but their magnitude for larger angles was consistent.
Y1 - 2018
ER -
TY - JOUR
A1 - Kahmann, Stephanie L.
A1 - Rausch, Valentin
A1 - Plümer, Jonathan
A1 - Müller, Lars P.
A1 - Pieper, Martin
A1 - Wegmann, Kilian
T1 - The automized fracture edge detection and generation of three-dimensional fracture probability heat maps
JF - Medical Engineering & Physics
N2 - With proven impact of statistical fracture analysis on fracture classifications, it is desirable to minimize the manual work and to maximize repeatability of this approach. We address this with an algorithm that reduces the manual effort to segmentation, fragment identification and reduction. The fracture edge detection and heat map generation are performed automatically. With the same input, the algorithm always delivers the same output. The tool transforms one intact template consecutively onto each fractured specimen by linear least square optimization, detects the fragment edges in the template and then superimposes them to generate a fracture probability heat map.
We hypothesized that the algorithm runs faster than the manual evaluation and with low (< 5 mm) deviation. We tested the hypothesis in 10 fractured proximal humeri and found that it performs with good accuracy (2.5 mm ± 2.4 mm averaged Euclidean distance) and speed (23 times faster). When applied to a distal humerus, a tibia plateau, and a scaphoid fracture, the run times were low (1–2 min), and the detected edges correct by visual judgement. In the geometrically complex acetabulum, at a run time of 78 min some outliers were considered acceptable. An automatically generated fracture probability heat map based on 50 proximal humerus fractures matches the areas of high risk of fracture reported in medical literature.
Such automation of the fracture analysis method is advantageous and could be extended to reduce the manual effort even further.
KW - Fracture classification
KW - Shoulder
KW - Probability distribution mapping
KW - Morphing
KW - Imaging
Y1 - 2022
SN - 1350-4533
VL - 2022
IS - 110
PB - Elsevier
CY - Amsterdam
ER -
TY - CHAP
A1 - Kahmann, Stephanie
A1 - Hackl, Michael
A1 - Wegmann, Kilian
A1 - Müller, Lars-Peter
A1 - Staat, Manfred
ED - Erni, Daniel
T1 - Impact of a proximal radial shortening osteotomy on the distribution of forces and the stability of the elbow
T2 - 1st YRA MedTech Symposium 2016 : April 8th / 2016 / University of Duisburg-Essen
N2 - The human arm consists of the humerus (upper arm), the medial ulna and the lateral radius (forearm). The joint between the humerus and the ulna is called humeroulnar joint and the joint between the humerus and the radius is called humeroradial joint. Lateral and medial collateral ligaments stabilize the elbow. Statistically, 2.5 out of 10,000 people suffer from radial head fractures [1]. In these fractures the cartilage is often affected. Caused by the injured cartilage, degenerative diseases like posttraumatic arthrosis may occur. The resulting pain and reduced range of motion have an impact on the patient’s quality of life. Until now, there has not been a treatment which allows typical loads in daily life activities and offers good long-term results. A new surgical approach was developed with the motivation to reduce the progress of the posttraumatic arthrosis. Here, the radius is shortened by 3 mm in the proximal part [2]. By this means, the load of the radius is intended to be reduced due to a load shift to the ulna. Since the radius is the most important stabilizer of the elbow it has to be confirmed that the stability is not affected. In the first test (Fig. 1 left), pressure distributions within the humeroulnar and humeroradial joints a native and a shortened radius were measured using resistive pressure sensors (I5076 and I5027, Tekscan, USA). The humerus was loaded axially in a tension testing machine (Z010, Zwick Roell, Germany) in 50 N steps up to 400 N. From the humerus the load is transmitted through both the radius and the ulna into the hand which is fixed on the ground. In the second test (Fig. 1 right), the joint stability was investigated using a digital image correlation system to measure the displacement of the ulna. Here, the humerus is fixed with a desired flexion angle and the unconstrained forearm lies on the ground. A rope connects the load actuator with a hook fixed in the ulna. A guide roller is used so that the rope pulls the ulna horizontally when a tensile load is applied. This creates a moment about the elbow joint with a maximum value of 7.5 Nm. Measurements were performed with varying flexion angles (0°, 30°, 60°, 90°, 120°). For both tests and each measurement, seven specimens were used. Student ́s t-test was employed to determine whether the mean values of the measurements in native specimen and operated specimens differ significantly.
Y1 - 2016
U6 - https://doi.org/10.17185/duepublico/40821
SP - 7
EP - 8
PB - Universität Duisburg-Essen
CY - Duisburg
ER -
TY - JOUR
A1 - Jung, Alexander
A1 - Staat, Manfred
A1 - Müller, Wolfram
T1 - Corrigendum to “Flight style optimization in ski jumping on normal, large, and ski flying hills” [J. Biomech 47 (2014) 716–722]
JF - Journals of Biomechanics
Y1 - 2018
U6 - https://doi.org/10.1016/j.jbiomech.2018.02.001
SN - 0021-9290
N1 - refers to
Journal of Biomechanics Vol 47, Issue 3, Pages 716-722:
https://doi.org/10.1016/j.jbiomech.2013.11.021
SP - 313
PB - Elsevier
CY - Amsterdam
ER -
TY - JOUR
A1 - Jung, Alexander
A1 - Staat, Manfred
A1 - Müller, Wolfram
T1 - Flight style optimization in ski jumping on normal, large, and ski flying hills
JF - Journal of biomechanics
Y1 - 2013
SN - 1873-2380 (E-Journal); 0021-9290 (Print)
N1 - Corrigendum to “Flight style optimization in ski jumping on normal, large, and ski flying hills” [J. Biomech 47 (2014) 716-722] Journal of Biomechanics, 2018;71:313.
VL - Vol. 47
IS - Iss. 3
SP - 716
EP - 722
PB - Elsevier
CY - Amsterdam
ER -
TY - CHAP
A1 - Jung, Alexander
A1 - Staat, Manfred
A1 - Müller, Wolfram
ED - Onate, E.
T1 - Optimization of the flight style in ski jumping
T2 - 11th World Congress on Computational Mechanics (WCCM XI) ; 5th European Conference on Computational Mechanics (ECCM V) ; 6th European Conference on Computational Fluid Dynamics (ECFD VI) ; July 20 - 25, 2014, Barcelona
Y1 - 2014
N1 - Das Paper wurde nach der Konferenz überarbeitet.
SP - 799
EP - 810
ER -
TY - CHAP
A1 - Jung, Alexander
A1 - Staat, Manfred
A1 - Müller, Wolfram
T1 - Effect of wind on flight style optimisation in ski jumping
T2 - 15th International Symposium on Computer Simulation in Biomechanics ; July 9th-11th 2015, Edinburgh, UK
Y1 - 2016
SP - 53
EP - 54
PB - The University of Edinburgh ; Loughborough University
CY - Edinburgh
ER -
TY - JOUR
A1 - Jung, Alexander
A1 - Staat, Manfred
T1 - Erratum to "Modeling and simulation of human induced pluripotent stem cell-derived cardiac tissue" [GAMM-Mitteilungen, (2019), 42, 4, 10.1002/gamm.201900002]
JF - GAMM-Mitteilungen
Y1 - 2020
U6 - https://doi.org/10.1002/gamm.202000011
SN - 1522-2608
N1 - Refers to: Modeling and simulation of human induced pluripotent stem cell-derived cardiac tissue. Alexander Jung, Manfred Staat.
Volume 42, Issue 4. GAMM-Mitteilungen, 2019. https://doi.org/10.1002/gamm.201900002
VL - 43
IS - 4
PB - Wiley-VCH GmbH
CY - Weinheim
ER -
TY - CHAP
A1 - Jung, Alexander
A1 - Staat, Manfred
ED - Erni, Daniel
T1 - Computing olympic gold: Ski jumping as an example
T2 - 1st YRA MedTech Symposium 2016 : April 8th / 2016 / University of Duisburg-Essen
Y1 - 2016
SN - 978-3-940402-06-6
U6 - https://doi.org/10.17185/duepublico/40821
SP - 54
EP - 55
PB - Universität Duisburg-Essen
CY - Duisburg
ER -
TY - JOUR
A1 - Jung, Alexander
A1 - Staat, Manfred
T1 - Modeling and simulation of human induced pluripotent stem cell-derived cardiac tissue
JF - GAMM - Mitteilungen der Gesellschaft für Angewandte Mathematik und Mechanik
Y1 - 2019
U6 - https://doi.org/10.1002/gamm.201900002
SN - 1522-2608
VL - 42
IS - 4
PB - Wiley
CY - Weinheim
ER -
TY - JOUR
A1 - Jung, Alexander
A1 - Müller, Wolfram
A1 - Staat, Manfred
T1 - Wind and fairness in ski jumping: A computer modelling analysis
JF - Journal of Biomechanics
N2 - Wind is closely associated with the discussion of fairness in ski jumping. To counter-act its influence on the jump length, the International Ski Federation (FIS) has introduced a wind compensation approach. We applied three differently accurate computer models of the flight phase with wind (M1, M2, and M3) to study the jump length effects of various wind scenarios. The previously used model M1 is accurate for wind blowing in direction of the flight path, but inaccuracies are to be expected for wind directions deviating from the tangent to the flight path. M2 considers the change of airflow direction, but it does not consider the associated change in the angle of attack of the skis which additionally modifies drag and lift area time functions. M3 predicts the length effect for all wind directions within the plane of the flight trajectory without any mathematical simplification. Prediction errors of M3 are determined only by the quality of the input data: wind velocity, drag and lift area functions, take-off velocity, and weight. For comparing the three models, drag and lift area functions of an optimized reference jump were used. Results obtained with M2, which is much easier to handle than M3, did not deviate noticeably when compared to predictions of the reference model M3. Therefore, we suggest to use M2 in future applications. A comparison of M2 predictions with the FIS wind compensation system showed substantial discrepancies, for instance: in the first flight phase, tailwind can increase jump length, and headwind can decrease it; this is opposite of what had been anticipated before and is not considered in the current wind compensation system in ski jumping.
Y1 - 2018
U6 - https://doi.org/10.1016/j.jbiomech.2018.05.001
SN - 0021-9290
IS - 75
SP - 147
EP - 153
PB - Elsevier
CY - Amsterdam
ER -
TY - GEN
A1 - Jung, Alexander
A1 - Müller, Wolfram
A1 - Staat, Manfred
T1 - Corrigendum to “Wind and fairness in ski jumping: A computer modelling analysis” [J. Biomech. 75 (2018) 147–153]
T2 - Journal of Biomechanics
Y1 - 2021
U6 - https://doi.org/10.1016/j.jbiomech.2021.110690
SN - 0021-9290
N1 - Refers to: Alexander Jung, Wolfram Müller, Manfred Staat: Wind and fairness in ski jumping: A computer modelling analysis. Journal of Biomechanics, Volume 75. 25 June 2018. Pages 147-153. https://doi.org/10.1016/j.jbiomech.2018.05.001
VL - 128
IS - Article number: 110690
PB - Elsevier
CY - Amsterdam
ER -
TY - JOUR
A1 - Jung, Alexander
A1 - Müller, Wolfram
A1 - Staat, Manfred
T1 - Optimization of the flight technique in ski jumping: the influence of wind
Y1 - 2019
U6 - https://doi.org/10.1016/j.jbiomech.2019.03.023
IS - Early view
PB - Elsevier
CY - Amsterdam
ER -
TY - CHAP
A1 - Jung, Alexander
A1 - Frotscher, Ralf
A1 - Staat, Manfred
T1 - Electromechanical model of hiPSC-derived ventricular cardiomyocytes cocultured with fibroblasts
T2 - 6th European Conference on Computational Mechanics (ECCM 6), 7th European Conference on Computational Fluid Dynamics (ECFD 7), 11-15 June 2018, Glasgow, UK
N2 - The CellDrum provides an experimental setup to study the mechanical effects of fibroblasts co-cultured with hiPSC-derived ventricular cardiomyocytes. Multi-scale computational models based on the Finite Element Method are developed. Coupled electrical cardiomyocyte-fibroblast models (cell level) are embedded into reaction-diffusion equations (tissue level) which compute the propagation of the action potential in the cardiac tissue. Electromechanical coupling is realised by an excitation-contraction model (cell level) and the active stress arising during contraction is added to the passive stress in the force balance, which determines the tissue displacement (tissue level). Tissue parameters in the model can be identified experimentally to the specific sample.
Y1 - 2018
ER -
TY - THES
A1 - Jung, Alexander
T1 - Electromechanical modelling and simulation of hiPSC-derived cardiac cell cultures
Y1 - 2021
U6 - http://nbn-resolving.de/urn/resolver.pl?https://nbn-resolving.org/urn:nbn:de:hbz:464-20210624-134942-7
SN - 978-3-9821811-1-0
N1 - Dissertation, Universität Duisburg-Essen, 2021
PB - Universität Duisburg-Essen
ER -
TY - JOUR
A1 - Jossek, Ralf
A1 - Bongaerts, Johannes
A1 - Sprenger, Georg A.
T1 - Characterization of a new feedback-resistant 3-deoxy-D-arabinoheptulosonate 7-phosphate synthase AroF of Escherichia coli
JF - FEMS microbiology letters
Y1 - 2001
SN - 1574-6968
VL - Vol. 202
IS - Iss. 1
SP - 145
EP - 148
ER -
TY - JOUR
A1 - Jordan, Sabine D.
A1 - Krüger, Markus
A1 - Willmes, Diana M.
A1 - Redemann, Nora
A1 - Wunderlich, F. Thomas
A1 - Brönneke, Hella S.
A1 - Merkwirth, Carsten
A1 - Kashkar, Hamid
A1 - Olkkonen, Vesa M.
A1 - Böttger, Thomas
A1 - Braun, Thomas
A1 - Seibler, Jost
A1 - Brüning, Jens C.
T1 - Obesity-induced overexpression of miRNA-143 inhibits insulin-stimulated AKT activation and impairs glucose metabolism
JF - Nature Cell Biology
N2 - The contribution of altered post-transcriptional gene silencing to the development of insulin resistance and type 2 diabetes mellitus so far remains elusive. Here, we demonstrate that expression of microRNA (miR)-143 and 145 is upregulated in the liver of genetic and dietary mouse models of obesity. Induced transgenic overexpression of miR-143, but not miR-145, impairs insulin-stimulated AKT activation and glucose homeostasis. Conversely, mice deficient for the miR-143–145 cluster are protected from the development of obesity-associated insulin resistance. Quantitative-mass-spectrometry-based analysis of hepatic protein expression in miR-143-overexpressing mice revealed miR-143-dependent downregulation of oxysterol-binding-protein-related protein (ORP) 8. Reduced ORP8 expression in cultured liver cells impairs the ability of insulin to induce AKT activation, revealing an ORP8-dependent mechanism of AKT regulation. Our experiments provide direct evidence that dysregulated post-transcriptional gene silencing contributes to the development of obesity-induced insulin resistance, and characterize the miR-143–ORP8 pathway as a potential target for the treatment of obesity-associated diabetes.
Y1 - 2011
U6 - https://doi.org/10.1038/ncb2211
SN - 1465-7392
VL - 13
IS - 4
SP - 434
EP - 446
PB - Nature
CY - New York
ER -
TY - CHAP
A1 - Jockwer, R.
A1 - Kleiber, M.
A1 - Uibel, Thomas
ED - Görlacher, Rainer
T1 - Criteria for Evaluating the Simplification of Design Rules for Dowel-type Fasteners
T2 - International Network on Timber Engineering Research, INTER : proceedings, meeting 51, 10 - 13 August 2016, Tallinn, Estonia
Y1 - 2018
SP - 461
EP - 466
PB - Timber Scientific Publishing, KIT Holzbau und Baukonstruktionen
CY - Karlsruhe
ER -
TY - JOUR
A1 - Jochim, Haldor E.
T1 - Charging rail operators for delays – how not to do it
JF - Networks for mobility : International Symposium, September 18 - 20, 2002, Stuttgart, Germany ; proceedings / University of Stuttgart, Centre of Transporation Research (FOVUS). W. Möhlenbrink ... (eds.)
Y1 - 2002
SN - 3893010858
N1 - International Symposium ; (2002.09.18-20 : ; Stuttgart)
PB - FOVUS
CY - Stuttgart
ER -
TY - JOUR
A1 - Jochim, Haldor E.
T1 - A traffic resistance model of long-distance travel
JF - Networks for mobility : 2nd international symposium, September 29 - October 1, 2004, Stuttgart, Germany ; proceedings ; abstracts and CD-ROM / [2nd International Symposium on Networks for Mobility]. FOVUS, Centre of Transportation Research, University of
Y1 - 2004
SN - 3-89301-180-3
N1 - International Symposium on Networks for Mobility (2, 2004, Stuttgart)
PB - FOVUS
CY - Stuttgart
ER -
TY - JOUR
A1 - Jiminez German, Salvador
A1 - Behbahani, Mehdi
A1 - Miettinen, Susanna
A1 - Grijpma, Dirk W.
A1 - Haimi, Suvi P.
T1 - Proliferation and differentiation of adipose stem cells towards smooth muscle cells on poly(trimethylene carbonate) membranes
JF - Macromolecular symposia
Y1 - 2013
SN - 0258-0322
VL - Vol. 334
IS - Iss. 1
SP - 133
EP - 142
PB - Wiley
CY - Weinheim
ER -
TY - JOUR
A1 - Jildeh, Zaid B.
A1 - Wagner, Torsten
A1 - Schöning, Michael Josef
A1 - Pieper, Martin
T1 - Simulating the electromagnetic‐thermal treatment of thin aluminium layers for adhesion improvement
JF - Physica status solidi (a)
N2 - A composite layer material used in packaging industry is made from joining layers of different materials using an adhesive. An important processing step in the production of aluminium-containing composites is the surface treatment and consequent coating of adhesive material on the aluminium surface. To increase adhesion strength between aluminium layer and the adhesive material, the foil is heat treated. For efficient heating, induction heating was considered as state-of-the-art treatment process. Due to the complexity of the heating process and the unpredictable nature of the heating source, the control of the process is not yet optimised. In this work, a finite element analysis of the process was established and various process parameters were studied. The process was simplified and modelled in 3D. The numerical model contains an air domain, an aluminium layer and a copper coil fitted with a magnetic field concentrating material. The effect of changing the speed of the aluminium foil (or rolling speed) was studied with the change of the coil current. Statistical analysis was used for generating a general control equation of coil current with changing rolling speed.
Y1 - 2015
U6 - https://doi.org/10.1002/pssa.201431893
SN - 1862-6319
VL - Vol. 212
IS - 6
SP - 1234
EP - 1241
PB - Wiley
CY - Weinheim
ER -
TY - JOUR
A1 - Jildeh, Zaid B.
A1 - Wagner, Patrick H.
A1 - Schöning, Michael Josef
T1 - Sterilization of Objects, Products, and Packaging Surfaces and Their Characterization in Different Fields of Industry: The Status in 2020
JF - physica status solidi (a) applications and materials science
N2 - The treatment method to deactivate viable microorganisms from objects or products is termed sterilization. There are multiple forms of sterilization, each intended to be applied for a specific target, which depends on—but not limited to—the thermal, physical, and chemical stability of that target. Herein, an overview on the currently used sterilization processes in the global market is provided. Different sterilization techniques are grouped under a category that describes the method of treatment: radiation (gamma, electron beam, X-ray, and ultraviolet), thermal (dry and moist heat), and chemical (ethylene oxide, ozone, chlorine dioxide, and hydrogen peroxide). For each sterilization process, the typical process parameters as defined by regulations and the mode of antimicrobial activity are summarized. Finally, the recommended microorganisms that are used as biological indicators to validate sterilization processes in accordance with the rules that are established by various regulatory agencies are summarized.
KW - bioburdens
KW - sterility tests
KW - sterilization efficacy
KW - sterilization methods
KW - validation methods
Y1 - 2021
U6 - https://doi.org/10.1002/pssa.202000732
SN - 1862-6319
N1 - Corresponding author: Michael J. Schöning
VL - 218
IS - 13
PB - Wiley-VCH
CY - Weinheim
ER -
TY - JOUR
A1 - Jildeh, Zaid B.
A1 - Oberländer, Jan
A1 - Kirchner, Patrick
A1 - Wagner, Patrick H.
A1 - Schöning, Michael Josef
T1 - Thermocatalytic Behavior of Manganese (IV) Oxide as Nanoporous Material on the Dissociation of a Gas Mixture Containing Hydrogen Peroxide
JF - Nanomaterials
N2 - In this article, we present an overview on the thermocatalytic reaction of hydrogen peroxide (H₂O₂) gas on a manganese (IV) oxide (MnO₂) catalytic structure. The principle of operation and manufacturing techniques are introduced for a calorimetric H₂O₂ gas sensor based on porous MnO₂. Results from surface analyses by X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM) of the catalytic material provide indication of the H₂O₂ dissociation reaction schemes. The correlation between theory and the experiments is documented in numerical models of the catalytic reaction. The aim of the numerical models is to provide further information on the reaction kinetics and performance enhancement of the porous MnO₂ catalyst.
Y1 - 2018
U6 - https://doi.org/10.3390/nano8040262
SN - 2079-4991
VL - 8
IS - 4
PB - MDPI
CY - Basel
ER -
TY - JOUR
A1 - Jildeh, Zaid B.
A1 - Oberländer, Jan
A1 - Kirchner, Patrick
A1 - Keusgen, Michael
A1 - Wagner, Patrick H.
A1 - Schöning, Michael Josef
T1 - Experimental and Numerical Analyzes of a Sensor Based on Interdigitated Electrodes for Studying Microbiological Alterations
JF - physica status solidi (a): applications and materials science
N2 - In this work, a cell-based biosensor to evaluate the sterilization efficacy of hydrogen peroxide vapor sterilization processes is characterized. The transducer of the biosensor is based on interdigitated gold electrodes fabricated on an inert glass substrate. Impedance spectroscopy is applied to evaluate the sensor behavior and the alteration of test microorganisms due to the sterilization process. These alterations are related to changes in relative permittivity and electrical conductivity of the bacterial spores. Sensor measurements are conducted with and without bacterial spores (Bacillus atrophaeus), as well as after an industrial sterilization protocol. Equivalent two-dimensional numerical models based on finite element method of the periodic finger structures of the interdigitated gold electrodes are designed and validated using COMSOL® Multiphysics software by the application of known dielectric properties. The validated models are used to compute the electrical properties at different sensor states (blank, loaded with spores, and after sterilization). As a final result, we will derive and tabulate the frequency-dependent electrical parameters of the spore layer using a novel model that combines experimental data with numerical optimization techniques.
Y1 - 2018
U6 - https://doi.org/10.1002/pssa.201700920
SN - 1862-6319
VL - 215
IS - 15
PB - Wiley-VCH
CY - Weinheim
ER -
TY - JOUR
A1 - Jildeh, Zaid B.
A1 - Kirchner, Patrick
A1 - Oberländer, Jan
A1 - Vahidpour, Farnoosh
A1 - Wagner, Patrick H.
A1 - Schöning, Michael Josef
T1 - Development of a package-sterilization process for aseptic filling machines: A numerical approach and validation for surface treatment with hydrogen peroxide
JF - Sensor and Actuators A: Physical
N2 - Within the present work a sterilization process by a heated gas mixture that contains hydrogen peroxide (H₂O₂) is validated by experiments and numerical modeling techniques. The operational parameters that affect the sterilization efficacy are described alongside the two modes of sterilization: gaseous and condensed H₂O₂. Measurements with a previously developed H₂O₂ gas sensor are carried out to validate the applied H₂O₂ gas concentration during sterilization. We performed microbiological tests at different H₂O₂ gas concentrations by applying an end-point method to carrier strips, which contain different inoculation loads of Geobacillus stearothermophilus spores. The analysis of the sterilization process of a pharmaceutical glass vial is performed by numerical modeling. The numerical model combines heat- and advection-diffusion mass transfer with vapor–pressure equations to predict the location of condensate formation and the concentration of H₂O₂ at the packaging surfaces by changing the gas temperature. For a sterilization process of 0.7 s, a H₂O₂ gas concentration above 4% v/v is required to reach a log-count reduction above six. The numerical results showed the location of H₂O₂ condensate formation, which decreases with increasing sterilant-gas temperature. The model can be transferred to different gas nozzle- and packaging geometries to assure the absence of H₂O₂ residues.
Y1 - 2020
U6 - https://doi.org/10.1016/j.sna.2019.111691
SN - 0924-4247
VL - 303
IS - 111691
PB - Elsevier
CY - Amsterdam
ER -
TY - JOUR
A1 - Jildeh, Zaid B.
A1 - Kirchner, Patrick
A1 - Oberländer, Jan
A1 - Kremers, Alexander
A1 - Wagner, Torsten
A1 - Wagner, Patrick H.
A1 - Schöning, Michael Josef
T1 - FEM-based modeling of a calorimetric gas sensor for hydrogen peroxide monitoring
JF - physica status solidi a : applications and materials sciences
N2 - A physically coupled finite element method (FEM) model is developed to study the response behavior of a calorimetric gas sensor. The modeled sensor serves as a monitoring device of the concentration of gaseous hydrogen peroxide (H2 O2) in a high temperature mixture stream in aseptic sterilization processes. The principle of operation of a calorimetric H2 O2 sensor is analyzed and the results of the numerical model have been validated by using previously published sensor experiments. The deviation in the results between the FEM model and experimental data are presented and discussed.
Y1 - 2017
U6 - https://doi.org/10.1002/pssa.201600912
SN - 1862-6319
IS - Early View
PB - Wiley-VCH
CY - Weinheim
ER -
TY - JOUR
A1 - Jildeh, Zaid B.
A1 - Kirchner, Patrick
A1 - Baltes, Klaus
A1 - Wagner, Patrick H.
A1 - Schöning, Michael Josef
T1 - Development of an in-line evaporation unit for the production of gas mixtures containing hydrogen peroxide – numerical modeling and experimental results
JF - International Journal of Heat and Mass Transfer
N2 - Hydrogen peroxide (H2O2) is a typical surface sterilization agent for packaging materials used in the pharmaceutical, food and beverage industries. We use the finite-elements method to analyze the conceptual design of an in-line thermal evaporation unit to produce a heated gas mixture of air and evaporated H2O2 solution. For the numerical model, the required phase-transition variables of pure H2O2 solution and of the aerosol mixture are acquired from vapor-liquid equilibrium (VLE) diagrams derived from vapor-pressure formulations. This work combines homogeneous single-phase turbulent flow with heat-transfer physics to describe the operation of the evaporation unit. We introduce the apparent heat-capacity concept to approximate the non-isothermal phase-transition process of the H2O2-containing aerosol. Empirical and analytical functions are defined to represent the temperature- and pressure-dependent material properties of the aqueous H2O2 solution, the aerosol and the gas mixture. To validate the numerical model, the simulation results are compared to experimental data on the heating power required to produce the gas mixture. This shows good agreement with the deviations below 10%. Experimental observations on the formation of deposits due to the evaporation of stabilized H2O2 solution fits the prediction made from simulation results.
Y1 - 2019
U6 - https://doi.org/10.1016/j.ijheatmasstransfer.2019.118519
SN - 0017-9310
VL - 143
PB - Elsevier
CY - Amsterdam
ER -
TY - JOUR
A1 - Jeromin, Günter Erich
A1 - Zoor, Annegreth
T1 - A new irreversible enzyme-aided esterification method in organic solvents
JF - Biotechnology letters. 30 (2008), H. 5
Y1 - 2008
SN - 1573-6776
SP - 925
EP - 928
ER -
TY - JOUR
A1 - Jeromin, Günter Erich
A1 - Welsch, Volker
T1 - Diketene a New Esterification Reagent in the Enzyme-Aided Synthesis of Chiral Alcohols and Chiral Acetoacetic Acid Esters
JF - Tetrahedron Letters . 36 (1995), H. 37
Y1 - 1995
SN - 0040-4039
N1 - ISSN der E-Ausg.: 1359-8562
SP - 6663
EP - 6664
ER -
TY - JOUR
A1 - Jeromin, Günter Erich
A1 - Scheidt, Annette
T1 - Aliphatic optically active alcohols by enzyme-aided synthesis
JF - Tetrahedron Letters . 32 (1991), H. 48
Y1 - 1991
SN - 0040-4039
N1 - ISSN der E-Ausg.: 1359-8562
SP - 7021
EP - 7024
ER -
TY - JOUR
A1 - Jeromin, Günter Erich
A1 - Albertz, Michael
T1 - Optically active α-acetoxycarboxylic acids and α-hydroxycarboxylic acids by enzyme-aided syntheses
JF - Journal für Praktische Chemie / Chemiker-Zeitung. 334 (1992), H. 6
Y1 - 1992
SN - 1436-9966
N1 - ISSN der E-Ausg.: 1521-3897 ; In der Bibliothek (Jülich) vorhanden unter 63 ZS 024-1992
SP - 526
EP - 528
ER -
TY - JOUR
A1 - Jeromin, Günter Erich
T1 - Superabsorbed alcohol dehydrogenase—a new catalyst for asymmetric reductions
JF - Biotechnology Letters. 31 (2009), H. 11
Y1 - 2009
SN - 0141-5492
SP - 1717
EP - 1721
ER -
TY - JOUR
A1 - Jeromin, Günter Erich
T1 - Tetrabenzo[a,c,h,j]phenoxazine-18-yl a new stable neutral radical
JF - Tetrahedron Letters . 42 (2001), H. 10
Y1 - 2001
SN - 0040-4039
N1 - ISSN der E-Ausg.: 1359-8562
SP - 1863
EP - 1865
ER -
TY - JOUR
A1 - Jens, Otto
A1 - Kaldenhoff, E.
A1 - Kirschner-Hermanns, R.
A1 - Mühl, Thomas
A1 - Klinge, Uwe
T1 - Elongation of textile pelvic floor implants under load is related to complete loss of effective porosity, thereby favoring incorporation in scar plates
JF - Journal of biomedical materials research. Part A
N2 - Use of textile structures for reinforcement of pelvic floor structures has to consider mechanical forces to the implant, which are quite different to the tension free conditions of the abdominal wall. Thus, biomechanical analysis of textile devices has to include the impact of strain on stretchability and effective porosity. Prolift® and Prolift + M®, developed for tension free conditions, were tested by measuring stretchability and effective porosity applying mechanical strain. For comparison, we used Dynamesh-PR4®, which was designed for pelvic floor repair to withstand mechanical strain. Prolift® at rest showed moderate porosity with little stretchability but complete loss of effective porosity at strain of 4.9 N/cm. Prolift + M® revealed an increased porosity at rest, but at strain showed high stretchability, with subsequent loss of effective porosity at strain of 2.5 N/cm. Dynamesh PR4® preserved its high porosity even under strain, but as consequence of limited stretchability. Though in tension free conditions Prolift® and Prolift + M® can be considered as large pore class I meshes, application of mechanical strain rapidly lead to collapse of pores. The loss of porosity at mechanical stress can be prevented by constructions with high structural stability. Assessment of porosity under strain was found helpful to define requirements for pelvic floor devices. Clinical studies have to prove whether devices with high porosity as well as high structural stability can improve the patients' outcome.
Y1 - 2014
U6 - https://doi.org/10.1002/jbm.a.34767
SN - 1552-4965
VL - 102
IS - 4
SP - 1079
EP - 1084
PB - Wiley
CY - New York
ER -
TY - CHAP
A1 - Jean-Pierre P., de Vera
A1 - Baque, Mickael
A1 - Billi, Daniela
A1 - Böttger, Ute
A1 - Bulat, Sergey
A1 - Czupalla, Markus
A1 - Dachwald, Bernd
A1 - de la Torre, Rosa
A1 - Elsaesser, Andreas
A1 - Foucher, Frédéric
A1 - Korsitzky, Hartmut
A1 - Kozyrovska, Natalia
A1 - Läufer, Andreas
A1 - Moeller, Ralf
A1 - Olsson-Francis, Karen
A1 - Onofri, Silvano
A1 - Sommer, Stefan
A1 - Wagner, Dirk
A1 - Westall, Frances
T1 - The search for life on Mars and in the Solar System - strategies, logistics and infrastructures
T2 - 69th International Astronautical Congress (IAC)
N2 - The question "Are we alone in the Universe?" is perhaps the most fundamental one that affects mankind. How can we address the search for life in our Solar System? Mars, Enceladus and Europa are the focus of the search for life outside the terrestrial biosphere. While it is more likely to find remnants of life (fossils of extinct life) on Mars because of its past short time window of the surface habitability, it is probably more likely to find traces of extant life on the icy moons and ocean worlds of Jupiter and Saturn. Nevertheless, even on Mars there could still be a chance to find extant life in niches near to the surface or in just discovered subglacial lakes beneath the South Pole ice cap. Here, the different approaches for the detection of traces of life in the form of biosignatures including pre-biotic molecules will be presented. We will outline the required infrastructure for this enterprise and give examples of future mission concepts to investigate the presence of life on other planets and moons. Finally, we will provide suggestions on methods, techniques, operations and strategies for preparation and realization of future life detection missions.
KW - life detection
KW - Mars
KW - icy moons
KW - habitability
KW - space missions
Y1 - 2018
N1 - 69th International Astronautical Congress (IAC), Bremen, Germany, 1-5 October 2018.
SP - 1
EP - 8
ER -
TY - JOUR
A1 - Jayaraman, Chandrasekaran
A1 - Mummidisetty, Chaitanya Krishna
A1 - Loesch, Alexandra
A1 - Kaur, Sandi
A1 - Hoppe-Ludwig, Shenan
A1 - Staat, Manfred
A1 - Jayaraman, Arun
T1 - Postural and metabolic benefits of using a forearm support walker in older adults with impairments
JF - Archives of Physical Medicine and Rehabilitation
Y1 - 2019
U6 - https://doi.org/10.1016/j.apmr.2018.10.001
SN - 0003-9993
VL - Volume 100
IS - Issue 4
SP - 638
EP - 647
PB - Elsevier
CY - Amsterdam
ER -
TY - CHAP
A1 - Jarke, Matthias
A1 - Gebhardt, Michael
A1 - Jacobs, Stephan
A1 - Nissen, Hans W.
T1 - Conflict analysis across heterogeneous viewpoints: formalization and visualization
T2 - Proceedings of the 29th Annual Hawaii International Conference on System Sciences
Y1 - 1996
SN - 0-8186-7324-9
U6 - https://doi.org/10.1109/HICSS.1996.493191
SP - 199
EP - 208
ER -
TY - BOOK
A1 - Janz, Norbert
A1 - Peters, Bettina
T1 - Innovation and Innovation Success in the German Manufacturing Sector. Econometric Evidence at Firm Level / Janz, N. and Peters, B.
Y1 - 2002
ER -
TY - JOUR
A1 - Janz, Norbert
A1 - Lööf, Hans
A1 - Peters, Bettina
T1 - Firm Level Innovation and Productivity, Is there a Common Story Across Countries?
JF - Problems and Perspectives in Management (2004)
Y1 - 2004
SN - ISSN 1727-7051
N1 - online download: http://businessperspectives.org/files/ppm/PPM_EN_2004_02_Janz.pdf
SP - 184
EP - 204
ER -
TY - BOOK
A1 - Janz, Norbert
A1 - Lööf, Hans
A1 - Peters, Bettina
T1 - Firm Level Innovation and Productivity, Is there a Common Story Across Countries?
Y1 - 2003
SN - ISSN 1727-7051
N1 - ZEW Diskussion Paper. No 03-26 Online : ftp://ftp.zew.de/pub/zew-docs/dp/dp0326.pdf
PB - Zentrum für Europäische Wirtschaftsforschung ZEW
CY - Mannheim
ER -
TY - BOOK
A1 - Janz, Norbert
A1 - Licht, Georg
A1 - Ebling, Günther
A1 - Niggemann, Hiltrud
T1 - Innovation in the Service Sector. Selected Facts and Some Policy Conclusions / Licht, G., G. Ebling, N. Janz, H. Niggemann
Y1 - 1999
PB - European Commission
CY - Luxembourg
ER -
TY - BOOK
A1 - Janz, Norbert
A1 - Licht, Georg
T1 - Innovation Activities and European Patenting of German Firms. A Panel Data Analysis / Janz, N., G. Licht
Y1 - 2002
ER -
TY - BOOK
A1 - Janz, Norbert
A1 - Gottschalk, Sandra
A1 - Hempell, Thomas
A1 - Peters, Bettina
T1 - Innovation Activities in the German Economy. Report on Indicators from the Innovation Survey 2000 (English translation) / Janz, N., S. Gottschalk, T. Hempell, B. Peters, G. Ebling und H. Niggemann
Y1 - 2002
PB - ZEW Zentrum für Europäische Wirtschaftsforschung
CY - Mannheim
ER -
TY - BOOK
A1 - Janz, Norbert
A1 - Gottschalk, Sandra
T1 - Innovation Dynamics and Endogenours Market Structue. An Econometric Investigation with Aggregated Innovation Survey Data / Gottschalk, S. und N. Janz
Y1 - 2001
N1 - ZEW-Discussion Paper 01-39 online unter ftp://ftp.zew.de/pub/zew-docs/dp/dp0139.pdf
PB - ZEW Zentrum für Europäische Wirtschaftsförderung
CY - Mannheim
ER -
TY - JOUR
A1 - Janz, Norbert
A1 - Goedhuys, Micheline
A1 - Mohnen, Pierre
T1 - What drives productivity in Tanzanian manufacturing firms: technology or business environment? / Goedhuys, Micheline ; Janz, Norbert ; Mohnen, Pierre
JF - The European Journal of Development Research. 20 (2008), H. 2
Y1 - 2008
SN - 1743-9728
SP - 199
EP - 218
ER -
TY - BOOK
A1 - Janz, Norbert
A1 - Goedhuys, Micheline
A1 - Mohnen, Pierre
T1 - Knowledge-based productivity in "low-tech" industries : evidence from firms in developing countries / Goedhuys, Micheline ; Janz, Norbert ; Mohnen, Pierre
Y1 - 2008
N1 - Working paper series // United Nations University, UNU-MERIT ; 2008,007
PB - UNU-MERIT
CY - Maastricht
ER -
TY - BOOK
A1 - Janz, Norbert
A1 - Goedhuys, Micheline
A1 - Mohnen, Pierre
T1 - What drives productivity in Tanzanian manufacturing firms: technology or institutions? / Goedhuys, Micheline ; Janz, Norbert ; Mohnen, Pierre
Y1 - 2006
N1 - Working paper series // United Nations University, UNU-MERIT ; 2006,037
PB - UnU-MERIT
CY - Maastricht
ER -
TY - JOUR
A1 - Janz, Norbert
A1 - Goedhuys, Micheline
A1 - Mairesse, Jacques
A1 - Mohnen, Pierre
T1 - Micro-evidence on innovation and development (MEIDE): an introduction / Goedhuys, Micheline ; Janz, Norbert ; Mairesse, Jacques ; Mohnen, Pierre
JF - The European Journal of Development Research. 20 (2008), H. 2
Y1 - 2008
SN - 1743-9728
SP - 167
EP - 171
ER -
TY - BOOK
A1 - Janz, Norbert
A1 - Ebling, Günther
A1 - Niggemann, Hiltrud
A1 - Stahl, Harald
T1 - 2nd Community Innovation Survey. 1st Interim Report. Report prepared for Eurostat / Ebling, G., N. Janz, H. Niggemann und H. Stahl
Y1 - 1998
PB - ZEW Zentrum für Europäische Wirtschaftsförderung
CY - Mannheim
ER -
TY - BOOK
A1 - Janz, Norbert
A1 - Ebling, Günther
A1 - Göggerle, J.
A1 - Licht, Georg
T1 - The Longitudinal Aspect of Innovation Surveys / G. Ebling, J. Göggerle, N. Janz, G. Licht und H. Stahl
Y1 - 1998
PB - ZEW Zentrum für Europäische Wirtschaftsförderung
CY - Mannheim
ER -
TY - BOOK
A1 - Janz, Norbert
A1 - Ebling, Günther
A1 - Gottschalk, Sandra
A1 - Peters, Bettina
T1 - Innovation Activities in the German Economy: Report on indicators from the Innovation Survey 2001 (english translation) / Janz, N., G. Ebling, S. Gottschalk, B. Peters und T. Schmidt
Y1 - 2002
PB - ZEW Zentrum für Europäische Wirtschaftsforschung
CY - Mannheim
ER -
TY - JOUR
A1 - Janz, Norbert
A1 - Ebling, Günther
A1 - Gottschalk, Sandra
A1 - Niggemann, Hiltrud
T1 - The Mannheim Innovation Panels (MIP and MIP-S) of the Centre for European Economic Research (ZEW) / Janz, N., G. Ebling, S. Gottschalk und H. Niggemann
JF - Schmollers Jahrbuch : Zeitschrift für Wirtschafts- und Sozialwissenschaften ; journal of applied social science studies. 121 (2001)
Y1 - 2001
SN - 0342-1783
SP - 123
EP - 129
ER -
TY - BOOK
A1 - Janz, Norbert
A1 - Ebling, Günther
A1 - Gottschalk, Sandra
A1 - Niggemann, Hiltrud
T1 - Prospects of the German Economy: Innovation Activities in the Manufacturing Sector. Survey 1999 Report to the Federal Ministry of Education and Research (English translation) / Janz, N., G. Ebling, S. Gottschalk und H. Niggemann
Y1 - 2000
PB - ZEW Zentrum für Europäische Wirtschaftsforschung
CY - Mannheim
ER -
TY - BOOK
A1 - Janz, Norbert
A1 - Ebling, Günther
A1 - Gottschalk, Sandra
A1 - Niggemann, Hiltrud
T1 - Services in the Future: Innovation Activities in the Service Sector. Survey 1999 (English translation) / Janz, N., G. Ebling, S. Gottschalk und H. Niggemann
Y1 - 2000
PB - ZEW Zentrum für Europäische Wirtschaftsforschung
CY - Mannheim
ER -
TY - BOOK
A1 - Janz, Norbert
A1 - Ebling, Günther
A1 - Gottschalk, Sandra
A1 - Niggemann, Hiltrud
T1 - 2nd Community Innovation Survey. Final Report. Report prepared for Eurostat / Ebling, G. , S. Gottschalk, N. Janz und H. Niggemann
Y1 - 1999
PB - ZEW Zentrum für Europäische Wirtschaftsforschung
CY - Mannheim
ER -
TY - BOOK
A1 - Janz, Norbert
A1 - Ebling, Günther
A1 - Gottschalk, Sandra
A1 - Niggemann, Hiltrud
T1 - 2nd Community Innovation Survey. 2nd Interim Report. Report prepared for Eurostat / Ebling, G. , S. Gottschalk, N. Janz und H. Niggemann
Y1 - 1999
PB - ZEW Zentrum für Europäische Wirtschaftsforschung
CY - Mannheim
ER -
TY - BOOK
A1 - Janz, Norbert
A1 - Ebling, Günther
A1 - Gottschalk, Sandra
A1 - Licht, Georg
T1 - Prospects of the German Economy: Innovation Activities in the Manufacturing Sector. Survey 1998 (English translation) / Janz, N., G. Ebling, S. Gottschalk, G. Licht und H. Niggemann
Y1 - 1999
PB - ZEW Zentrum für Europäische Wirtschaftsforschung
CY - Mannheim
ER -
TY - BOOK
A1 - Janz, Norbert
A1 - Ebling, Günther
A1 - Gottschalk, Sandra
A1 - Licht, Georg
T1 - Services in the Future. Innovation Activities in the Service Sector. Survey 1998 (English translation) / Janz, N., G. Ebling, S. Gottschalk, G. Licht und H. Niggemann
Y1 - 1999
PB - ZEW Zentrum für Europäische Wirtschaftsforschung
CY - Mannheim
ER -
TY - BOOK
A1 - Janz, Norbert
A1 - Ebling, Günther
T1 - Export and Innovation Activities in the German Service Sector. Empirical Evidence at the Firm Level / Ebling, G.. und N. Janz
Y1 - 1999
N1 - ZEW-Discussion Paper 99-53 online unter ftp://ftp.zew.de/pub/zew-docs/dp/dp5399.pdf
PB - ZEW Zentrum für Europäische Wirtschaftsförderung
CY - Mannheim
ER -
TY - JOUR
A1 - Janz, Norbert
T1 - Outlier Robust Estimation of an Euler Equation Investment Model with German Firm Level Panel Data
JF - Contributions to modern econometrics : from data analysis to economic policy ; [dedicated to Gerd Hansen on the occasion of his 65th Birthday] / ed. by Ingo Klein and Stefan Mittnik
Y1 - 2002
SN - 1402073348
N1 - Dynamic modeling in econometrics in economics and finance ; 4
SP - 87
EP - 103
PB - Kluwer Academic Publ.
CY - Dordrecht [u.a.]
ER -
TY - JOUR
A1 - Janz, Norbert
T1 - Innovative Power of German Manufacturing Industry Slows Down
JF - ZEW news. English edition. 4 (2002), H. 2002
Y1 - 2002
SP - 5
EP - 5
ER -
TY - JOUR
A1 - Janz, Norbert
T1 - Innovations in Germany: Market Novelties Gain Greater Importance
JF - ZEW news. English edition (2001)
Y1 - 2001
SP - 3
EP - 3
ER -
TY - BOOK
A1 - Janz, Norbert
T1 - Interpreting Estimation Result of Euler Equation Investment Models when Factor Markets are Imperfectly Competitive
Y1 - 1997
N1 - ZEW-Discussion Paper 97-29 online unter ftp://ftp.zew.de/pub/zew-docs/dp/dp2997.pdf
PB - ZEW Zentrum für Europäische Wirtschaftsforschung
CY - Mannheim
ER -
TY - JOUR
A1 - Janus, Kevin Alexander
A1 - Achtsnicht, Stefan
A1 - Tempel, Laura
A1 - Drinic, Aleksaner
A1 - Kopp, Alexander
A1 - Keusgen, Michael
A1 - Schöning, Michael Josef
T1 - Influence of fibroin membrane composition and curing parameters on the performance of a biodegradable enzymatic biosensor manufactured from Silicon-Free Carbon
JF - Physica status solidi : pss. A, Applications and materials science
N2 - Herein, fibroin, polylactide (PLA), and carbon are investigated for their suitability as biocompatible and biodegradable materials for amperometric biosensors. For this purpose, screen-printed carbon electrodes on the biodegradable substrates fibroin and PLA are modified with a glucose oxidase membrane and then encapsulated with the biocompatible material Ecoflex. The influence of different curing parameters of the carbon electrodes on the resulting biosensor characteristics is studied. The morphology of the electrodes is investigated by scanning electron microscopy, and the biosensor performance is examined by amperometric measurements of glucose (0.5–10 mM) in phosphate buffer solution, pH 7.4, at an applied potential of 1.2 V versus a Ag/AgCl reference electrode. Instead of Ecoflex, fibroin, PLA, and wound adhesive are tested as alternative encapsulation compounds: a series of swelling tests with different fibroin compositions, PLA, and Ecoflex has been performed before characterizing the most promising candidates by chronoamperometry. Therefore, the carbon electrodes are completely covered with the particular encapsulation material. Chronoamperometric measurements with H2O2 concentrations between 0.5 and 10 mM enable studying the leakage current behavior.
KW - amperometric biosensors
KW - biocompatible
KW - biodegradabl
KW - encapsulation materials
KW - fibroin
Y1 - 2023
U6 - https://doi.org/10.1002/pssa.202300081
SN - 1862-6300 (Print)
SN - 1862-6319 (Online)
N1 - Corresponding author: Michael J. Schöning
VL - 220
IS - 22
PB - Wiley-VCH
CY - Weinheim
ER -
TY - JOUR
A1 - Janus, Kevin Alexander
A1 - Achtsnicht, Stefan
A1 - Drinic, Aleksander
A1 - Kopp, Alexander
A1 - Keusgen, Michael
A1 - Schöning, Michael Josef
T1 - Transient magnesium-based thin-film temperature sensor on a flexible, bioabsorbable substrate for future medical applications
JF - Applied Research
N2 - In this work, the bioabsorbable materials, namely fibroin, polylactide acid (PLA), magnesium and magnesium oxide are investigated for their application as transient, resistive temperature detectors (RTD). For this purpose, a thin-film magnesium-based meander-like electrode is deposited onto a flexible, bioabsorbable substrate (fibroin or PLA) and encapsulated (passivated) by additional magnesium oxide layers on top and below the magnesium-based electrode. The morphology of different layered RTDs is analyzed by scanning electron microscopy. The sensor performance and lifetime of the RTD is characterized both under ambient atmospheric conditions between 30°C and 43°C, and wet tissue-like conditions with a constant temperature regime of 37°C. The latter triggers the degradation process of the magnesium-based layers. The 3-layers RTDs on a PLA substrate could achieve a lifetime of 8.5 h. These sensors also show the best sensor performance under ambient atmospheric conditions with a mean sensitivity of 0.48 Ω/°C ± 0.01 Ω/°C.
KW - Silk fibroin
KW - Polylactide acid
KW - Bioabsorbable
KW - Resistive temperature detector
Y1 - 2023
U6 - https://doi.org/10.1002/appl.202300102
SN - 2702-4288 (Print)
N1 - Corresponding author: Michael Josef Schöning
IS - Accepted manuscript
PB - Wiley-VCH
ER -
TY - BOOK
A1 - Janser, Frank
A1 - Havermann, Marc
T1 - Inkompressible Strömungen
Y1 - 2012
SN - 978-3-86130-446-3
N1 - Strömungslehre und Aerodynamik
PB - Mainz
CY - Aachen
ER -
TY - JOUR
A1 - Jansen, Sebastian
A1 - Behbahani, Mehdi
A1 - Laumen, Marco
A1 - Kaufmann, Tim
A1 - Hormes, Marcus
A1 - Schmitz-Rode, Thomas
A1 - Behr, Marek
A1 - Steinseifer, Ulrich
T1 - 3D Stereo-PIV Validation for CFD-Simulation of Steady Flow through the Human Aorta using Rapid-Prototyping techniques
Y1 - 2010
N1 - abstract ; IV International Symposium on Modelling of Physiological Flows, Sardinia, Italy, June 02-05, 2010 ; MPF2010
ER -
TY - JOUR
A1 - Jansen, S. V.
A1 - Behbahani, Mehdi
A1 - Laumen, M.
A1 - Kaufmann, T.
A1 - Hormes, M.
A1 - Behr, Marek
A1 - Schmitz-Rode, T.
A1 - Steinseifer, U.
T1 - Investigation of Steady Flow Through a Realistic Model of the Thoracic Human Aorta Using 3D Stereo PIV and CFD-Simulation
JF - ASAIO Journal
Y1 - 2010
U6 - https://doi.org/10.1097/01.mat.0000369377.65122.a3
N1 - American Society of Artificial Organs (ASAIO), Baltimore, USA, May 27-29, 2010
VL - 56
IS - 2
SP - 98
PB - Lippincott Williams & Wilkins
CY - Philadelphia
ER -
TY - CHAP
A1 - Janotte, N.
A1 - Feckler, G.
A1 - Kötter, Jens
A1 - Decker, Stefan
A1 - Herrmann, Ulf
A1 - Schmitz, Mark
A1 - Lüpfert, E.
T1 - Dynamic performance evaluation of the HelioTrough® collector demonstration loop : towards a new benchmark in parabolic trough qualification
T2 - SolarPACES International Conference 2013, Las Vegas, Nevada, USA, 17 - 20 September 2013 : [proceedings]. - Pt. 1. - (Energy procedia ; 49)
Y1 - 2014
SN - 978-1-63266-904-9
U6 - https://doi.org/10.1016/j.egypro.2014.03.012
SN - 1876-6102
N1 - Nebent.: Power and Chemical Energy Systems concentrating solar power
SP - 109
EP - 117
PB - Curran
CY - Red Hook, NY
ER -
TY - JOUR
A1 - Jakob, Felix
A1 - Martinez, Ronny
A1 - Mandawe, John
A1 - Hellmuth, Hendrik
A1 - Siegert, Petra
A1 - Maurer, Karl-Heinz
A1 - Schwaneberg, Ulrich
T1 - Surface charge engineering of a Bacillus gibsonii subtilisin protease
JF - Applied microbiology and biotechnology
Y1 - 2013
SN - 1432-0614 (E-Journal); 0171-1741 (Print); 0175-7598 (Print); 0340-2118 (Print)
VL - Vol. 97
IS - Iss. 15
SP - 6793
EP - 6802
PB - Springer
CY - Berlin
ER -
TY - JOUR
A1 - Jahnke, Siegfried
A1 - Roussel, Johanna
A1 - Hombach, Thomas
A1 - Kochs, Johannes
A1 - Fischbach, Andreas
A1 - Huber, Gregor
A1 - Scharr, Hanno
T1 - phenoSeeder - A robot system for automated handling and phenotyping of individual seeds
JF - Plant physiology
N2 - The enormous diversity of seed traits is an intriguing feature and critical for the overwhelming success of higher plants. In particular, seed mass is generally regarded to be key for seedling development but is mostly approximated by using scanning methods delivering only two-dimensional data, often termed seed size. However, three-dimensional traits, such as the volume or mass of single seeds, are very rarely determined in routine measurements. Here, we introduce a device named phenoSeeder, which enables the handling and phenotyping of individual seeds of very different sizes. The system consists of a pick-and-place robot and a modular setup of sensors that can be versatilely extended. Basic biometric traits detected for individual seeds are two-dimensional data from projections, three-dimensional data from volumetric measures, and mass, from which seed density is also calculated. Each seed is tracked by an identifier and, after phenotyping, can be planted, sorted, or individually stored for further evaluation or processing (e.g. in routine seed-to-plant tracking pipelines). By investigating seeds of Arabidopsis (Arabidopsis thaliana), rapeseed (Brassica napus), and barley (Hordeum vulgare), we observed that, even for apparently round-shaped seeds of rapeseed, correlations between the projected area and the mass of seeds were much weaker than between volume and mass. This indicates that simple projections may not deliver good proxies for seed mass. Although throughput is limited, we expect that automated seed phenotyping on a single-seed basis can contribute valuable information for applications in a wide range of wild or crop species, including seed classification, seed sorting, and assessment of seed quality.
Y1 - 2016
U6 - https://doi.org/10.1104/pp.16.01122
SN - 0032-0889
VL - 172
IS - 3
SP - 1358
EP - 1370
PB - Oxford University Press
CY - Oxford
ER -