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Articles (93)
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1

400-Gbit/s QPSK free-space optical communicationlink based on four-fold multiplexing of Hermite–Gaussian or Laguerre–Gaussian modes by varying both modal indices

Pang, Kai, Song, Haoqian, Zhao, Zhe, Zhang, Runzhou, Song, Hao, Xie, Guodong, Li, Long, Liu, Cong, Du, Jing, Molisch, Andreas F., Tur, Moshe, Willner, Alan E.

Journal:

Année:

2018

Langue:

english

Fichier:

PDF, 1.90 MB

english, 2018

2

Modeling of jointed structures using zero thickness interface elements

Johannes Geisler, Kai Willner

Journal:

Année:

2007

Langue:

english

Fichier:

PDF, 249 KB

english, 2007

3

Experimental demonstration of beaconless beam displacement tracking for an orbital angular momentum multiplexed free-space optical link

Li, Long, Zhang, Runzhou, Xie, Guodong, Ren, Yongxiong, Zhao, Zhe, Wang, Zhe, Liu, Cong, Song, Haoqian, Pang, Kai, Bock, Robert, Tur, Moshe, Willner, Alan E.

Journal:

Année:

2018

Langue:

english

Fichier:

PDF, 1.56 MB

english, 2018

4

Investigations of the influence of geometrical irregularities and roughness on the normal contact stiffness of joints

Daniel Goerke, Kai Willner

Journal:

Année:

2008

Langue:

english

Fichier:

PDF, 136 KB

english, 2008

5

Experimental demonstration of fast simultaneous wavelength switching and time demultiplexing using a nonlinear optical loop mirror

Xiaopeng Chen, Hoanca, B., Kai-Ming Feng, Jin-Xing Cai, Willner, A.E.

Journal:

IEEE Photonics Technology Letters

Année:

1997

Langue:

english

Fichier:

PDF, 56 KB

english, 1997

6

Experimental demonstration of dynamic high-speed equalization of three WDM channels using acoustooptic modulators and a wavelength demultiplexer

Jin-Xing Cai, Kai-Ming Feng, Xiaopeng Chen, Willner, A.E., Smith, D.A., Chau-Han Lee, Yung-Jui Chen

Journal:

IEEE Photonics Technology Letters

Année:

1997

Langue:

english

Fichier:

PDF, 336 KB

english, 1997

7

Compensation for I/Q Imbalances and Bias Deviation of the Mach–Zehnder Modulators in Direct-Detected Optical OFDM Systems

Wei-Ren Peng, Bo Zhang, Xiaoxia Wu, Kai-Ming Feng, Willner, A.E., Chi, S.

Journal:

IEEE Photonics Technology Letters

Année:

2009

Langue:

english

Fichier:

PDF, 507 KB

english, 2009

8

Ultimate Sensitivity for Optically Preamplified Direct-Detected OFDM Systems Using Spectrally Matched Optical Filters

Wei-Ren Peng, Kai-Ming Feng, Willner, A.E.

Journal:

IEEE Photonics Technology Letters

Année:

2009

Langue:

english

Fichier:

PDF, 316 KB

english, 2009

9

Development of a Friction Law Respecting Plastic Surface Smoothing

Hauer, Franz, Willner, Kai

Journal:

Key Engineering Materials

Année:

2013

Langue:

english

Fichier:

PDF, 989 KB

english, 2013

10

Investigation of a jointed friction oscillator using the Multiharmonic Balance Method

Süß, Dominik, Willner, Kai

Journal:

Mechanical Systems and Signal Processing

Année:

2015

Langue:

english

Fichier:

PDF, 1.73 MB

english, 2015

11

Variationally consistent quadratic finite element contact formulations for finite deformation contact problems on rough surfaces

Sitzmann, Saskia, Willner, Kai, Wohlmuth, Barbara I.

Journal:

Finite Elements in Analysis and Design

Année:

2016

Langue:

english

Fichier:

PDF, 5.87 MB

english, 2016

12

Investigation of a Bolted Friction Resonator in the Frequency Domain

Süß, Dominik, Willner, Kai

Journal:

Année:

2014

Langue:

english

Fichier:

PDF, 2.97 MB

english, 2014

13

Arclength Continuation Methods for the Investigation of Non-linear Oscillating Systems with the Concept of Non-linear Normal Modes

Jerschl, Martin, Willner, Kai

Journal:

Année:

2014

Langue:

english

Fichier:

PDF, 199 KB

english, 2014

14

Surface Deformation due to Shear and Ploughing in a Halfspace

Beyer, Florian, Willner, Kai

Journal:

Année:

2014

Langue:

english

Fichier:

PDF, 799 KB

english, 2014

15

Non-invasive Differentiation of Kidney Stone Types using X-ray Dark-Field Radiography

Scherer, Kai, Braig, Eva, Willer, Konstantin, Willner, Marian, Fingerle, Alexander A., Chabior, Michael, Herzen, Julia, Eiber, Matthias, Haller, Bernhard, Straub, Michael, Schneider, Heike, Rummeny, E

Journal:

Scientific Reports

Année:

2015

Langue:

english

Fichier:

PDF, 4.77 MB

english, 2015

16

AIP Conference Proceedings [Author(s) ESAFORM 2016: Proceedings of the 19th International ESAFORM Conference on Material Forming - Nantes, France (27–29 April 2016)] - Simulation of sheet-bulk metal forming processes with simufact.forming using user-subroutines

Beese, Steffen, Beyer, Florian, Blum, Heribert, Isik, Kerim, Kumor, Dustin, Löhnert, Stefan, Rademacher, Andreas, Tekkaya, A. Erman, Willner, Kai, Wriggers, Peter, Zeller, Sebastian

Année:

2016

Langue:

english

Fichier:

PDF, 117 KB

english, 2016

17

Two reduction methods for stochastic FEM based homogenization using global basis functions

Pivovarov, Dmytro, Steinmann, Paul, Willner, Kai

Journal:

Computer Methods in Applied Mechanics and Engineering

Année:

2018

Langue:

english

Fichier:

PDF, 7.27 MB

english, 2018

18

[IEEE 2017 IEEE Global Communications Conference (GLOBECOM 2017) - Singapore (2017.12.4-2017.12.8)] GLOBECOM 2017 - 2017 IEEE Global Communications Conference - Performance of Using Antenna Arrays to Generate and Receive mm-Wave Orbital-Angular-Momentum Beams

Zhao, Zhe, Xie, Guodong, Li, Long, Song, Haoqian, Liu, Cong, Pang, Kai, Zhang, Runzhou, Bao, Changjing, Wang, Zhe, Sajuyigbe, Soji, Talwar, Shilpa, Nikopour, Hosein, Willner, Alan E.

Année:

2017

Langue:

english

Fichier:

PDF, 905 KB

english, 2017

19

Fuzzy Sensitivity Analysis In The Context Of Dimensional Management

Oberleiter, Thomas, Heling, Bjã¶Rn, Schleich, Benjamin, Willner, Kai, Wartzack, Sandro

Journal:

ASCE-ASME J. Risk and Uncert. in Engrg. Sys., Part B: Mech. Engrg.

Année:

2018

Langue:

english

Fichier:

PDF, 1.09 MB

english, 2018

20

SAE Technical Paper Series [SAE International 24th Annual Brake Colloquium and Exhibition - (OCT. 08, 2006)] SAE Technical Paper Series - The Role of Climatic Conditions on Disc Brake Noise

Koch, Manuela, Blaschke, Peter, Willner, Kai

Année:

2006

Langue:

english

Fichier:

PDF, 337 KB

english, 2006

21

Fuzzy-Stochastic FEM-based homogenization framework for materials with polymorphic uncertainties in the microstructure

Pivovarov, Dmytro, Oberleiter, Thomas, Willner, Kai, Steinmann, Paul

Journal:

International Journal for Numerical Methods in Engineering

Année:

2018

Langue:

english

Fichier:

PDF, 2.80 MB

english, 2018

22

Model reduction of gyroscopic systems in ALE formulation with and without non-linearities

Weidauer, Tim, Willner, Kai

Journal:

Année:

2018

Langue:

english

Fichier:

PDF, 447 KB

english, 2018

23

Model and Parameter Study of a Shape-Adaptable Beam for Vibration Control

Nowak, Alexander, Willner, Kai, Hasse, Alexander

Journal:

Année:

2018

Langue:

english

Fichier:

PDF, 806 KB

english, 2018

24

Limited-size aperture effects in an orbital-angular-momentum-multiplexed free-space optical data link between a ground station and a retro-reflecting UAV

Li, Long, Zhang, Runzhou, Liao, Peicheng, Song, Hao, Zou, Kaiheng, Xie, Guodong, Zhao, Zhe, Liu, Cong, Song, Haoqian, Pang, Kai, Willner, Ari N., Almaiman, Ahmed, Starodubov, Dmitry, Lynn, Brittany, B

Journal:

Optics Communications

Année:

2019

Langue:

english

Fichier:

PDF, 1.49 MB

english, 2019

25

Limited-size aperture effects in an orbital-angular-momentum-multiplexed free-space optical data link between a ground station and a retro-reflecting UAV

Li, Long, Zhang, Runzhou, Liao, Peicheng, Song, Hao, Zou, Kaiheng, Xie, Guodong, Zhao, Zhe, Liu, Cong, Song, Haoqian, Pang, Kai, Willner, Ari N., Almaiman, Ahmed, Starodubov, Dmitry, Lynn, Brittany, B

Journal:

Optics Communications

Année:

2019

Fichier:

PDF, 1.49 MB

2019

26

Fuzzy dynamics of multibody systems with polymorphic uncertainty in the material microstructure

Pivovarov, Dmytro, Hahn, Verena, Steinmann, Paul, Willner, Kai, Leyendecker, Sigrid

Journal:

Computational Mechanics

Année:

2019

Langue:

english

Fichier:

PDF, 5.48 MB

english, 2019

27

A Concept for Process-Oriented Interdisciplinary Tolerance Management Considering Production-Specific Deviations

Heling, Bjoern, Oberleiter, Thomas, Rohrmoser, Andreas, Kiener, Christoph, Schleich, Benjamin, Hagenah, Hinnerk, Merklein, Marion, Willner, Kai, Wartzack, Sandro

Journal:

Proceedings of the Design Society: International Conference on Engineering Design

Année:

2019

Langue:

english

Fichier:

PDF, 924 KB

english, 2019

28

A Concept for Process-Oriented Interdisciplinary Tolerance Management Considering Production-Specific Deviations

Heling, Bjoern, Oberleiter, Thomas, Rohrmoser, Andreas, Kiener, Christoph, Schleich, Benjamin, Hagenah, Hinnerk, Merklein, Marion, Willner, Kai, Wartzack, Sandro

Journal:

Proceedings of the Design Society: International Conference on Engineering Design

Année:

2019

Fichier:

PDF, 924 KB

2019

29

Implementation of Parameterized Work Piece Deviations and Measurement Uncertainties into Performant Meta-models for an Improved Tolerance Specification

Müller, Andreas Michael, Oberleiter, Thomas, Willner, Kai, Hausotte, Tino

Journal:

Proceedings of the Design Society: International Conference on Engineering Design

Année:

2019

Langue:

english

Fichier:

PDF, 1.23 MB

english, 2019

30

Application of the fast nonlinear analysis method on a clamped beam with a cubic spring

Akar, Ãzge, Willner, Kai

Journal:

Année:

2019

Langue:

english

Fichier:

PDF, 600 KB

english, 2019

31

Determination of equivalent transversely isotropic material parameters for sheet-layered lamination stacks

Baloglu, Maximilian Volkan, Ziegler, Marco, Franke, JÃ¶rg, Willner, Kai

Journal:

Mechanical Systems and Signal Processing

Année:

2020

Fichier:

PDF, 4.64 MB

2020

32

[Institution of Engineering and Technology 45th European Conference on Optical Communication (ECOC 2019) - Dublin, Ireland (22-26 Sept. 2019)] 45th European Conference on Optical Communication (ECOC 2019) - Experimental demonstration of utilizing adaptive optics to mitigate intra-modal-group power coupling of few-mode-fiber in a two-channel 20-Gbit/s QPSK mode-division-multiplexed system

Runzhou Zhang,, Hao Song,, Haogian Song,, Zhe Zhao,, Kai Pang,, Jing Du,, Kaiheng Zou,, Cong Liu,, Huibin Zhou,, Manukyan, K., Tur, M., Willner, A.E.

Année:

2019

Fichier:

PDF, 454 KB

2019

33

A fuzzy arithmetical approach to the solution of finite element problems with uncertain parameters

Michael Hanss, Kai Willner

Journal:

Mechanics Research Communications

Année:

2000

Langue:

english

Fichier:

PDF, 710 KB

english, 2000

34

Contact of fractal surfaces – Experimental and numerical results

Kai Willner, Daniel Görke

Journal:

Année:

2006

Langue:

english

Fichier:

PDF, 83 KB

english, 2006

35

Numerical and experimental investigations of dynamic contact phenomena in jointed structures

Dominik Süß, Johannes Geisler, Kai Willner

Journal:

Année:

2010

Langue:

english

Fichier:

PDF, 309 KB

english, 2010

36

Elastic-plastic halfspace simulation

Franz Hauer, Kai Willner

Journal:

Année:

2011

Langue:

english

Fichier:

PDF, 620 KB

english, 2011

37

Parameter identification for nonlinear dynamical systems using Multi Harmonic Balance techniques

Dominik Süß, Kai Willner

Journal:

Année:

2011

Langue:

english

Fichier:

PDF, 100 KB

english, 2011

38

Optimization of elastic material parameters of sheet metal with FEMU and DIC

Stefan Schmaltz, Kai Willner

Journal:

Année:

2011

Langue:

english

Fichier:

PDF, 72 KB

english, 2011

39

Theoretical and Experimental Investigations of Direct-Detected RF-Tone-Assisted Optical OFDM Systems

Wei-Ren Peng, Xiaoxia Wu, Arbab, V.R., Kai-Ming Feng, Shamee, B., Christen, L.C., Jeng-Yuan Yang, Willner, A.E., Sien Chi

Journal:

Journal of Lightwave Technology

Année:

2009

Langue:

english

Fichier:

PDF, 1.10 MB

english, 2009

40

Estimation of the Bit Error Rate for Direct-Detected OFDM Signals With Optically Preamplified Receivers

Wei-Ren Peng, Kai-Ming Feng, Willner, A.E., Sien Chi

Journal:

Journal of Lightwave Technology

Année:

2009

Langue:

english

Fichier:

PDF, 804 KB

english, 2009

41

Spectrally efficient direct-detected OFDM transmission employing an iterative estimation and cancellation technique

Peng, Wei-Ren, Wu, Xiaoxia, Feng, Kai-Ming, Arbab, Vahid R., Shamee, Bishara, Yang, Jeng-Yuan, Christen, Louis C., Willner, Alan E., Chi, Sien

Journal:

Année:

2009

Langue:

english

Fichier:

PDF, 858 KB

english, 2009

42

Plastic deformation of rough surfaces

Willner, Kai, Hauer, Franz

Journal:

Année:

2012

Langue:

english

Fichier:

PDF, 802 KB

english, 2012

43

Analysis of the lamination stack influence on the stiffness of stator active component

Luchscheider, Vera, Willner, Kai

Journal:

Année:

2012

Langue:

english

Fichier:

PDF, 99 KB

english, 2012

44

A dual Lagrange method for contact problems with regularized contact conditions

Sitzmann, Saskia, Willner, Kai, Wohlmuth, Barbara I.

Journal:

International Journal for Numerical Methods in Engineering

Année:

2014

Langue:

english

Fichier:

PDF, 3.26 MB

english, 2014

45

Material Model Identification for DC04 Based on the Numerical Modelling of the Polycrystalline Microstructure and Experimental Data

Lehmann, Eva, Schmaltz, Stefan, Germain, Sandrine, Faßmann, Dennis, Weber, Christoph, Löhnert, Stefan, Schaper, Mirko, Bach, Friedrich Wilhelm, Steinmann, Paul, Willner, Kai, Wriggers, Peter

Journal:

Key Engineering Materials

Année:

2012

Langue:

english

Fichier:

PDF, 20.98 MB

english, 2012

46

[IEEE 2008 3DTV Conference: The True Vision - Capture, Transmission and Display of 3D Video (3DTV-CON) - Istanbul, Turkey (2008.05.28-2008.05.30)] 2008 3DTV Conference: The True Vision - Capture, Transmission and Display of 3D Video - Mobile 3D Video Using MVC and N800 Internet Tablet

Willner, Kai, Ugur, Kemal, Salmimaa, Marja, Hallapuro, Antti, Lainema, Jani

Année:

2008

Langue:

english

Fichier:

PDF, 246 KB

english, 2008

47

[IEEE 2012 2nd International Electric Drives Production Conference (EDPC) - Nuremberg, Germany (2012.10.15-2012.10.18)] 2012 2nd International Electric Drives Production Conference (EDPC) - Development of a model to describe the stiffness of an electric motor lamination stack

Luchscheider, Vera, Willner, Kai, Maidorn, Mischa

Année:

2012

Langue:

english

Fichier:

PDF, 646 KB

english, 2012

48

[IEEE 2008 34th European Conference on Optical Communication - Brussels, Belgium (2008.09.21-2008.09.25)] 2008 34th European Conference on Optical Communication - Experimental demonstration of compensating the I/Q imbalance and bias deviation of the Mach-Zehnder modulator for an RF-tone assisted optical OFDM system

Peng, Wei-Ren, Bo Zhang,, Xiaoxia Wu,, Kai-Ming Feng,, Willner, Alan E., Sien Chi,

Année:

2008

Langue:

english

Fichier:

PDF, 632 KB

english, 2008

49

[IEEE 2008 34th European Conference on Optical Communication - Brussels, Belgium (2008.09.21-2008.09.25)] 2008 34th European Conference on Optical Communication - Experimental demonstration of 1600 km SSMF transmission of a generalized direct detection optical virtual SSB-OFDM system

Peng, Wei-Ren, Bo Zhang,, XiaoXia Wu,, Kai-Ming Feng,, Willner, Alan E., Sien Chi,

Année:

2008

Langue:

english

Fichier:

PDF, 646 KB

english, 2008

50

[IEEE LEOS 2008 - 21st Annual Meeting of the IEEE Lasers and Electro-Optics Society (LEOS 2008) - Newport Beach, CA, USA (2008.11.9-2008.11.13)] LEOS 2008 - 21st Annual Meeting of the IEEE Lasers and Electro-Optics Society - Direct-detected polarization division multiplexed OFDM systems with self-polarization diversity

Peng, Wei-Ren, Kai-Ming Feng,, Willner, Alan E.

Année:

2008

Langue:

english

Fichier:

PDF, 292 KB

english, 2008