TY  - JOUR
A1  - Laack, Walter van
T1  - Ist der Tod das Ende? In: Sterben - wie fühlt sich das an / Ines Elsenhans
JF  - Via medici : Fachmagazin für junge Mediziner
Y1  - 2013
SN  - 0949-2488
VL  - Vol. 18
IS  - Ausg. 5
SP  - 38
PB  - Thieme
CY  - Stuttgart
ER  - 
TY  - JOUR
A1  - Laack, Walter van
A1  - Albrecht, T.
T1  - Ultraschalltherapie in der Praxis
JF  - ZFA - Zeitschrift für Allgemeinmedizin
Y1  - 1987
SN  - 0341-9835
VL  - 63
IS  - 19
SP  - 605
EP  - 608
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  - Bialonski, Stephan
A1  - Ansmann, Gerrit
A1  - Kantz, Holger
T1  - Data-driven prediction and prevention of extreme events in a spatially extended excitable system
JF  - Physical Review E
Y1  - 2015
U6  - https://doi.org/10.1103/PhysRevE.92.042910
SN  - 2470-0053
VL  - 92
IS  - 4
SP  - 042910
ER  - 
TY  - JOUR
A1  - Staat, Manfred
T1  - Versagenswahrscheinlichkeit der Primärkreisdruckumschließung eines HTR-Moduls zur Prozeßwärmegewinnung unter Störfallbedingungen bei verschiedenen Versagensmoden
Y1  - 1991
N1  - 17. MPA-Seminar : Sicherheit und Verfügbarkeit in der Anlagentechnik mit dem Schwerpunkt Kerntechnik, Stuttgart (1991), 22.1-22.20
ER  - 
TY  - JOUR
A1  - Allefeld, Carsten
A1  - Bialonski, Stephan
T1  - Detecting synchronization clusters in multivariate time series via coarse-graining of Markov chains
JF  - Physical Review E
Y1  - 2007
U6  - https://doi.org/10.1103/PhysRevE.76.066207
SN  - 2470-0053
VL  - 76
IS  - 6
SP  - 066207
ER  - 
TY  - JOUR
A1  - Laack, Walter van
T1  - Entstehen und Funktion von Bewusstsein: Immaterielle Einflussnahme
JF  - Deutsches Ärzteblatt. 97 (2000), H. 9
Y1  - 2000
SN  - 0012-1207
SP  - A-540
ER  - 
TY  - JOUR
A1  - Laack, Walter van
T1  - Juvenile Osteochondronekrosen - Wesen und mögliche Entstehungsursachen
JF  - Zeitschrift für Allgemeinmedizin ; ZFA. 60 (1984)
Y1  - 1984
SN  - 0341-9835
SP  - 1432
ER  - 
TY  - JOUR
A1  - Pham, Phu Tinh
A1  - Staat, Manfred
T1  - An Upper Bound Algorithm for Limit and Shakedown Analysis of Bounded Linearly Kinematic Hardening Structures
JF  - Limit State of Materials and Structures : Direct Methods 2. Saxcé, Géry de (Hrsg.)
Y1  - 2013
SN  - 978-94-007-5424-9
SP  - 71
EP  - 87
PB  - Springer
CY  - Dordrecht
ER  - 
TY  - JOUR
A1  - Staat, Manfred
A1  - Vu, Duc Khoi
T1  - Limit analysis of flaws in pressurized pipes and cylindrical vessels Part II: Circumferential defects
JF  - Engineering Fracture Mechanics ; 97(2013), H. 1
N2  - Upper and lower bound theorems of limit analyses have been presented in part I of the paper. Part II starts with the finite element discretization of these theorems and demonstrates how both can be combined in a primal–dual optimization problem. This recently proposed numerical method is used to guide the development of a new class of closed-form limit loads for circumferential defects, which show that only large defects contribute to plastic collapse with a rapid loss of strength with increasing crack sizes. The formulae are compared with primal–dual FEM limit analyses and with burst tests. Even closer predictions are obtained with iterative limit load solutions for the von Mises yield function and for the Tresca yield function. Pressure loading of the faces of interior cracks in thick pipes reduces the collapse load of circumferential defects more than for axial flaws. Axial defects have been treated in part I of the paper.
Y1  - 2012
U6  - https://doi.org/10.1016/j.engfracmech.2012.05.017
SN  - 0013-7944
VL  - 97
SP  - 314
EP  - 333
PB  - Elsevier
CY  - Amsterdam
ER  -