TY  - JOUR
A1  - Hoffmann, Andreas
A1  - Uhl, Matthias
A1  - Ceblin, Maximilian
A1  - Rohrbach, Felix
A1  - Bansmann, Joachim
A1  - Mallah, Marcel
A1  - Heuermann, Holger
A1  - Jacob, Timo
A1  - Kuehne, Alexander J.C.
T1  - Atmospheric pressure plasma-jet treatment of PAN-nonwovens—carbonization of nanofiber electrodes
JF  - C - Journal of Carbon Research
N2  - Carbon nanofibers are produced from dielectric polymer precursors such as polyacrylonitrile (PAN). Carbonized nanofiber nonwovens show high surface area and good electrical conductivity, rendering these fiber materials interesting for application as electrodes in batteries, fuel cells, and supercapacitors. However, thermal processing is slow and costly, which is why new processing techniques have been explored for carbon fiber tows. Alternatives for the conversion of PAN-precursors into carbon fiber nonwovens are scarce. Here, we utilize an atmospheric pressure plasma jet to conduct carbonization of stabilized PAN nanofiber nonwovens. We explore the influence of various processing parameters on the conductivity and degree of carbonization of the converted nanofiber material. The precursor fibers are converted by plasma-jet treatment to carbon fiber nonwovens within seconds, by which they develop a rough surface making subsequent surface activation processes obsolete. The resulting carbon nanofiber nonwovens are applied as supercapacitor electrodes and examined by cyclic voltammetry and impedance spectroscopy. Nonwovens that are carbonized within 60 s show capacitances of up to 5 F g⁻¹.
Y1  - 2022
U6  - https://doi.org/10.3390/c8030033
SN  - 2311-5629
N1  - This article belongs to the Collection "Nanoporous Carbon Materials for Advanced Technological Applications"
VL  - 8
IS  - 3
PB  - MDPI
CY  - Basel
ER  - 
TY  - RPRT
A1  - Pisarczyk, Rafael
A1  - Ritz, Thomas
A1  - Wallenborn, Ramona
T1  - Unterschiedliche Entwicklungsansätze von Multiplattform-Anwendungen : Marktübersicht
N2  - Die Marktübersicht „Unterschiedliche Entwicklungsansätze von Multiplattform-Anwendungen“ richtet sich an IT-Dienstleister, Entwickler und IT-Abteilungen von Unternehmen, die Multiplattform Anwendungen entwickeln. In dieser Marktübersicht werden verschiedene Entwicklungsansätze beschrieben und ihre jeweiligen Vor- und Nachteile aufgezeigt.
Y1  - 2014
N1  - Mittelstand Digital
PB  - eBusiness-Lotse
CY  - Aachen
ER  - 
TY  - JOUR
A1  - Berndt, Heinz
A1  - Klostermeyer, Henning
A1  - Zahn, Helmut
T1  - Zur Synthese monomerer cyclischer Cystinpeptidderivate, I : Synthese der Sequenz A 6–9 des Schafinsulins als Cyclocystinylderivat
JF  - Justus Liebigs Annalen der Chemie
N2  - Es wird die Synthese der Sequenz A 6–9 des Schafinsulins in der geschützten Form Boc-Cys-Cys-Ala-Gly-OBuᵗ (5) sowie das Verhalten dieses monomeren cyclischen Cystinpeptidderivates gegenüber den in der Peptidchemie gebräuchlichen Reagenzien Bortrifluorid/Eisessig, Triäthylamin und Hydrazinhydrat beschrieben.
Y1  - 1972
U6  - https://doi.org/10.1002/jlac.19727590109
SN  - 1099-0690
VL  - 759
IS  - 1
SP  - 114
EP  - 120
PB  - Wiley-VCH
CY  - Weinheim
ER  - 
TY  - JOUR
A1  - Anik, Sabri
A1  - Frohberg, Martin G.
T1  - Thermodynamics and solubility of oxygen in liquid copper-lead alloys at 1200°C from E.M.F. measurements
JF  - Berichte der Bunsengesellschaft für physikalische Chemie
Y1  - 1984
SN  - 0940-483X
SN  - 0005-9021
VL  - 88
IS  - 8
SP  - 707
EP  - 710
ER  - 
TY  - CHAP
A1  - Kuperjans, Isabel
A1  - Augenstein, Eckardt
T1  - „EUSEBIA – Software zur Analyse und Verbesserung der betrieblichen Energiewirtschaft
T2  - Optimierung in der Energieversorgung : Tagung Veitshöchheim, 9. und 10. Oktober 2001. - (VDI-Berichte ; 1627)
Y1  - 2001
SN  - 3-18-091627-3
SP  - 267
EP  - 268
PB  - VDI-Verl.
CY  - Düsseldorf
ER  - 
TY  - BOOK
A1  - Berndt, Heinz
T1  - Neue Kondensations-Methoden zur Synthese definierter Peptid-Derivate
Y1  - 2014
N1  - Aachen, Techn. Hochsch., Habil.-Schr., 1982
CY  - Aachen
ER  - 
TY  - CHAP
A1  - Kramer, Pia
A1  - Bragard, Michael
A1  - Ritz, Thomas
A1  - Ferfer, Ute
A1  - Schiffers, Tim
T1  - Visualizing, Enhancing and Predicting Students’ Success through ECTS Monitoring
T2  - 2024 IEEE Global Engineering Education Conference (EDUCON)
N2  - This paper serves as an introduction to the ECTS monitoring system and its potential applications in higher education. It also emphasizes the potential for ECTS monitoring to become a proactive system, supporting students by predicting academic success and identifying groups of potential dropouts for tailored support services. The use of the nearest neighbor analysis is suggested for improving data analysis and prediction accuracy.
KW  - Monitoring
KW  - Engineering education
KW  - Data visualization
KW  - Accuracy
KW  - Data analysis
Y1  - 2024
U6  - https://doi.org/10.1109/EDUCON60312.2024.10578652
SN  - 2165-9559
SN  - 2165-9567 (eISSN)
N1  - 2024 IEEE Global Engineering Education Conference (EDUCON), 08-11 May 2024, Kos Island, Greece
PB  - IEEE
CY  - New York, NY
ER  - 
TY  - GEN
A1  - Ross-Jones, J.
A1  - Teumer, T.
A1  - Capitain, C.
A1  - Tippkötter, Nils
A1  - Krause, M. J.
A1  - Methner, F.-J.
A1  - Rädle, M.
T1  - Analytical methods for in-line characterization of beer haze
T2  - Trends in Brewing
N2  - In most beers, producers strive to minimize haze to maximize visual appeal. To detect the formation of particulates, a measurement system for sub-micron particles is required. Beer haze is naturally occurring, composed of protein or polyphenol particles; in their early stage of growth their size is smaller than 2 µm. Microscopy analysis is time and resource intensive; alternatively, backscattering is an inexpensive option for detecting particle sizes of interest.
Y1  - 2018
N1  - Trends in Brewing, April 8 –12, 2018, Ghent, Belgium
ER  - 
TY  - GEN
A1  - Frauenrath, Tobias
A1  - Dieringer, Matthias
A1  - Patel, Nishant
A1  - Zerdem, Celal
A1  - Hentschel, Jan
A1  - Renz, Wolfgang
A1  - Niendorf, Thoralf
T1  - From Artifact to Merit: Cardiac Gated MRI at 7T & 3T using Magneto-Hydrodynamic Effects for Synchronization
T2  - 2011 ISMRM Annual Meeting Proceedings
N2  - ECG is corrupted by magneto-hydrodynamic effects at higher magnetic field strength. Artifacts in the ECG trace and severe T-wave elevation might be mis-interpreted as R-waves. MHD being inherently sensitive to blood flow and blood velocity provides an alternative approach for cardiac gating, even in peripheral target areas far away from the commonly used upper torso positions of ECG electrodes. This feature would be very beneficial to address traveling time induced motion artifacts and trigger latency related issues raised by ECG-gated peripheral MR angiography. For all those reasons, this work proposes the use of MHD-trigger for cardiac gated MR.
Y1  - 2011
SN  - 1545-4428
N1  - ISMRM 19th Annual Meeting & Exhibition, 7-13 May 2011, Montreal, Quebec, Canada
ER  - 
TY  - JOUR
A1  - Esch, Thomas
T1  - Trends in commercial vehicle powertrains
JF  - ATZautotechnology
N2  - Low emission zones and truck bans, the rising price of diesel and increases in road tolls: all of these factors are putting serious pressure on the transport industry. Commercial vehicle manufacturers and their suppliers are in the process of identifying new solutions to these challenges as part of their efforts to meet the EEV (enhanced environmentally friendly vehicle) limits, which are currently the most robust European exhaust and emissions standards for trucks and buses.
KW  - European Transient Cycle
KW  - Common Rail Injection System
KW  - Commercial Vehicle
KW  - Selective Catalytic Reduction
KW  - Diesel Engine
Y1  - 2010
U6  - https://doi.org/10.1007/BF03247185
SN  - 2192-886X
VL  - 2010
IS  - 10
SP  - 26
EP  - 31
PB  - Vieweg & Sohn
CY  - Wiesbaden
ER  -