TY  - PAT
A1  - Hüning, Felix
T1  - Positionssensorvorrichtung
N2  - Die Erfindung betrifft eine Positionssensorvorrichtung zur Bestimmung einer Absolutposition eines beweglichen ersten Teils relativ zu einem ortsfesten zweiten Teil mit einem mit dem beweglichen ersten Teil gekoppelter Codekörper, der dazu eingerichtet ist, eine Codespur mit einer Mehrzahl von in Spurrichtung aufeinanderfolgenden Codeelementen zu enthalten zur Bildung eines Codewortes, mit einer magnetischen Detektionseinrichtung zur Detektion der Codespur, wobei die Detektionseinrichtung zum einen an dem Codekörper befestigte und entlang der Spurrichtung in einem solchen Abstand gegenpolig zueinander angeordnete Permanentmagneten aufweist, dass der Abstand mit einer vorgegebenen Länge der jeweiligen Codeelemente übereinstimmt, und zum anderen eine Anzahl von ortsfest und quer zu dem Codekörper versetzt
angeordnete Wiegandsensoren aufweist, wobei der Abstand des Wiegandsensors zu einer Erstreckungsebene der Permanentmagneten derart gewählt ist, dass bei Überdeckung des Wiegandsensors durch den Permanentmagneten ein Wiegandpuls in dem Wiegandsensor induziert wird.
Y1  - 2024
ER  - 
TY  - JOUR
A1  - Hulsebosch, R. J.
A1  - Günther, C.
A1  - Horn, C.
A1  - Holtmanns, S.
A1  - Howker, K.
A1  - Paterson, K.
A1  - Claessens, J.
A1  - Schuba, Marko
ED  - Mitchell, Chris J.
T1  - Pioneering Advanced Mobile Privacy and Security
JF  - Security for mobility
Y1  - 2004
SN  - 9781849190886
U6  - http://dx.doi.org/10.1049/PBTE051E_ch
N1  - IEE telecommunications series ; 51
SP  - 383
EP  - 432
PB  - Institution of Electrical Engineers
CY  - London
ER  - 
TY  - JOUR
A1  - Holtrup, S.
A1  - Sadeghfam, Arash
A1  - Heuermann, Holger
A1  - Awakowicz, P.
T1  - Characterization and optimization technique for microwave-driven high-intensity discharge lamps using hot S-parameters
JF  - IEEE transactions on microwave theories and techniques
N2  - High-intensity discharge lamps can be driven by radio-frequency signals in the ISM frequency band at 2.45 GHz, using a matching network to transform the impedance of the plasma to the source impedance. To achieve an optimal operating condition, a good characterization of the lamp in terms of radio frequency equivalent circuits under operating conditions is necessary, enabling the design of an efficient matching network. This paper presents the characterization technique for such lamps and presents the design of the required matching network. For the characterization, a high-intensity discharge lamp was driven by a monofrequent large signal at 2.45 GHz, whereas a frequency sweep over 300 MHz was performed across this signal to measure so-called small-signal hot S-parameters using a vector network analyzer. These parameters are then used as an equivalent load in a circuit simulator to design an appropriate matching network. Using the measured data as a black-box model in the simulation results in a quick and efficient method to simulate and design efficient matching networks in spite of the complex plasma behavior. Furthermore, photometric analysis of high-intensity discharge lamps are carried out, comparing microwave operation to conventional operation.
Y1  - 2014
U6  - http://dx.doi.org/10.1109/TMTT.2014.2342652
SN  - 0018-9480
VL  - 62
IS  - 10
SP  - 2471
EP  - 2480
PB  - IEEE
CY  - New York
ER  - 
TY  - CHAP
A1  - Hofmann, Till
A1  - Mataré, Victor
A1  - Schiffer, Stefan
A1  - Ferrein, Alexander
A1  - Lakemeyer, Gerhard
T1  - Constraint-based online transformation of abstract plans into executable robot actions
T2  - Proceedings of the 2018 AAAI Spring Symposium on Integrating Representation, Reasoning, Learning, and Execution for Goal Directed Autonomy
Y1  - 2018
SP  - 549
EP  - 553
ER  - 
TY  - CHAP
A1  - Hofmann, Till
A1  - Mataré, Victor
A1  - Neumann, Tobias
A1  - Schönitz, Sebastian
A1  - Henke, Christoph
A1  - Limpert, Nicolas
A1  - Niemueller, Tim
A1  - Ferrein, Alexander
A1  - Jeschke, Sabina
A1  - Lakemeyer, Gerhard
T1  - Enhancing Software and Hardware Reliability for a Successful Participation in the RoboCup Logistics League 2017
Y1  - 2018
SN  - 978-3-030-00308-1
U6  - http://dx.doi.org/10.1007/978-3-030-00308-1_40
N1  - Lecture Notes in Computer Science, vol 11175
SP  - 486
EP  - 497
PB  - Springer
CY  - Cham
ER  - 
TY  - CHAP
A1  - Hofmann, Till
A1  - Limpert, Nicolas
A1  - Mataré, Viktor
A1  - Ferrein, Alexander
A1  - Lakemeyer, Gerhard
T1  - Winning the RoboCup Logistics League with Fast Navigation, Precise Manipulation, and Robust Goal Reasoning
T2  - RoboCup 2019: Robot World Cup XXIII. RoboCup
Y1  - 2019
SN  - 978-3-030-35699-6
U6  - http://dx.doi.org/10.1007/978-3-030-35699-6_41
N1  - Lecture Notes in Computer Science, vol 11531
SP  - 504
EP  - 516
PB  - Springer
CY  - Cham
ER  - 
TY  - JOUR
A1  - Hofmann, Till
A1  - Limpert, Nicolas
A1  - Mataré, Victor
A1  - Schönitz, Sebastian
A1  - Niemueller, Tim
A1  - Ferrein, Alexander
A1  - Lakemeyer, Gerhard
T1  - The Carologistics RoboCup Logistics Team 2018
N2  - The Carologistics team participates in the RoboCup Logistics League for the seventh year. The RCLL requires precise vision,
manipulation and path planning, as well as complex high-level decision
making and multi-robot coordination. We outline our approach with an
emphasis on recent modifications to those components.
The team members in 2018 are David Bosen, Christoph Gollok, Mostafa
Gomaa, Daniel Habering, Till Hofmann, Nicolas Limpert, Sebastian Schönitz,
Morian Sonnet, Carsten Stoffels, and Tarik Viehmann.
This paper is based on the last year’s team description.
Y1  - 2018
ER  - 
TY  - JOUR
A1  - Hoffmann, Ulrich
A1  - Schermutzki, Margret
A1  - Winckelmann-Schlieper, Katja
T1  - Kompetenzbasierte Verzahnung von berufspraktischem und wissenschaftlichem Lernen : Der Studiengang Prozesstechnik der FH Aachen
JF  - Berufsbildung in Wissenschaft und Praxis (BWP). 39 (2010), H. 2
Y1  - 2010
SN  - 0341-4515
SP  - 32
EP  - 36
ER  - 
TY  - JOUR
A1  - Hoffmann, Ulrich
T1  - Neue Wege in die Hochschule – Beispiel des berufsbegleitenden Studienganges Prozesstechnik der FH Aachen und der Rhein-Erft Akademie
JF  - HIS: Forum Hochschule. 2008 (2008), H. F14
Y1  - 2008
SN  - 1863-5563
SP  - 130
EP  - 138
ER  - 
TY  - JOUR
A1  - Hoffmann, Andreas
A1  - Rohrbach, Felix
A1  - Uhl, Matthias
A1  - Ceblin, Maximilian
A1  - Bauer, Thomas
A1  - Mallah, Marcel
A1  - Jacob, Timo
A1  - Heuermann, Holger
A1  - Kuehne, Alexander J. C.
T1  - Atmospheric pressure plasma-jet treatment of polyacrylonitrile-nonwovens—Stabilization and roll-to-roll processing
JF  - Journal of Applied Polymer Science
N2  - Carbon nanofiber nonwovens represent a powerful class of materials with prospective application in filtration technology or as electrodes with high surface area in batteries, fuel cells, and supercapacitors. While new precursor-to-carbon conversion processes have been explored to overcome productivity restrictions for carbon fiber tows, alternatives for the two-step thermal conversion of polyacrylonitrile precursors into carbon fiber nonwovens are absent. In this work, we develop a continuous roll-to-roll stabilization process using an atmospheric pressure microwave plasma jet. We explore the influence of various plasma-jet parameters on the morphology of the nonwoven and compare the stabilized nonwoven to thermally stabilized samples using scanning electron microscopy, differential scanning calorimetry, and infrared spectroscopy. We show that stabilization with a non-equilibrium plasma-jet can be twice as productive as the conventional thermal stabilization in a convection furnace, while producing electrodes of comparable electrochemical performance.
KW  - batteries and fuel cells
KW  - electrospinning
KW  - fibers
KW  - irradiation
KW  - porous materials
Y1  - 2022
U6  - http://dx.doi.org/10.1002/app.52887
SN  - 0021-8995 (Print)
SN  - 1097-4628 (Online)
N1  - Weitere Informationen: Bundesministerium für Bildung und Forschung, Fördernummer: 13XP5036E. Deutsche Forschungsgemeinschaft, Fördernummern: 390874152, 441209207, 327886311
VL  - 139
IS  - 37
SP  - 1
EP  - 9
PB  - Wiley
ER  -