TY  - JOUR
A1  - Gasparyan, Ferdinand V.
A1  - Poghossian, Arshak
A1  - Vitusevich, Svetlana A.
A1  - Petrychuk, Mykhaylo V.
A1  - Sydoruk, Viktor A.
A1  - Siqueira, José R. Jr.
A1  - Oliveira, Osvaldo N. Jr.
A1  - Offenhäusser, Andreas
A1  - Schöning, Michael Josef
T1  - Low-Frequency Noise in Field-Effect Devices Functionalized With Dendrimer/Carbon-Nanotube Multilayers
JF  - IEEE Sensors Journal. 11 (2011), H. 1
Y1  - 2011
SN  - 1530-437X
SP  - 142
EP  - 149
PB  - IEEE
CY  - New York
ER  - 
TY  - JOUR
A1  - Gun, Jenny
A1  - Gutkin, Vitaly
A1  - Lev, Ovadia
A1  - Boyen, Hans-Gerd
A1  - Saitner, Marc
A1  - Wagner, Patrick
A1  - Olieslaeger, Marc D´
A1  - Abouzar, Maryam H.
A1  - Poghossian, Arshak
A1  - Schöning, Michael Josef
T1  - Tracing gold nanoparticle charge by electrolyte-insulator-semiconductor devices
JF  - Journal of Physical Chemistry C. 115 (2011), H. 11
Y1  - 2011
SN  - 1932-7455
SP  - 4439
EP  - 4445
PB  - American Cemical Society
CY  - Washington, DC
ER  - 
TY  - JOUR
A1  - Bialonski, Stephan
A1  - Wendler, Martin
A1  - Lehnertz, Klaus
T1  - Unraveling spurious properties of interaction networks with tailored random networks
JF  - Plos one
N2  - We investigate interaction networks that we derive from multivariate time series with methods frequently employed in diverse scientific fields such as biology, quantitative finance, physics, earth and climate sciences, and the neurosciences. Mimicking experimental situations, we generate time series with finite length and varying frequency content but from independent stochastic processes. Using the correlation coefficient and the maximum cross-correlation, we estimate interdependencies between these time series. With clustering coefficient and average shortest path length, we observe unweighted interaction networks, derived via thresholding the values of interdependence, to possess non-trivial topologies as compared to Erdös-Rényi networks, which would indicate small-world characteristics. These topologies reflect the mostly unavoidable finiteness of the data, which limits the reliability of typically used estimators of signal interdependence. We propose random networks that are tailored to the way interaction networks are derived from empirical data. Through an exemplary investigation of multichannel electroencephalographic recordings of epileptic seizures – known for their complex spatial and temporal dynamics – we show that such random networks help to distinguish network properties of interdependence structures related to seizure dynamics from those spuriously induced by the applied methods of analysis.
Y1  - 2011
U6  - https://doi.org/10.1371/journal.pone.0022826
VL  - 6
IS  - 8
PB  - Plos
CY  - San Francisco
ER  - 
TY  - JOUR
A1  - Poth, Sebastian
A1  - Monzon, Magaly
A1  - Tippkötter, Nils
A1  - Ulber, Roland
T1  - Lignocellulosic biorefinery: Process integration of hydrolysis and fermentation (SSF process)
JF  - Holzforschung
N2  - The aim of the present work is the process integration and the optimization of the enzymatic hydrolysis of wood and the following fermentation of the products to ethanol. The substrate is a fiber fraction obtained by organosolv pre-treatment of beech wood. For the ethanol production, a co-fermentation by two different yeasts (Saccharomyces cerevisiae and Pachysolen tannophilus) was carried out to convert glucose as well as xylose. Two approaches has been followed: 1. A two step process, in which the hydrolysis of the fiber fraction and the fermentation to product are separated from each other. 2. A process, in which the hydrolysis and the fermentation are carried out in one single process step as simultaneous saccharification and fermentation (SSF). Following the first approach, a yield of about 0.15 g ethanol per gram substrate can be reached. Based on the SSF, one process step can be saved, and additionally, the gained yield can be raised up to 0.3 g ethanol per gram substrate.
Y1  - 2011
N1  - 11th EWLP, Hamburg, Germany, August 16–19, 2010
VL  - 65
IS  - 5
SP  - 633
EP  - 637
PB  - De Gruyter
CY  - Berlin
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  - CHAP
A1  - Fabo, Sabine
ED  - Schmidt, Sabine Maria
T1  - REMOTEWORDS – anticipating the big observer
T2  - Hacking the city : Interventionen in urbanen und kommunikativen Räumen ; Museum Folkwang, [16. Juli - 26. September 2010]
KW  - Streetart
KW  - Öffentlicher Raum
KW  - Stadtgestaltung
KW  - Aktionskunst
KW  - Kommunikationsguerrilla
Y1  - 2011
SN  - 978-3-86930-187-7
N1  - http://www.hackingthecity.org
SP  - 134
EP  - 137
PB  - Steidl ; Edition Folkwang
CY  - Göttingen [u.a.]
ER  -