Refine
Year of publication
Document Type
- Article (285)
- Postprint (11)
- Preprint (9)
- Monograph/Edited Volume (8)
- Other (1)
Keywords
- Complex networks (5)
- Event synchronization (4)
- precipitation (3)
- synchronization (3)
- Amazon rainforest (2)
- Extreme rainfall (2)
- Synchronization (2)
- channel (2)
- classification (2)
- climate networks (2)
- complex networks (2)
- diffusion (2)
- droughts (2)
- events (2)
- identifying influential nodes (2)
- models (2)
- prediction (2)
- rainfall (2)
- space-dependent diffusivity (2)
- streamflow (2)
- 3D medical image analysis (1)
- African climate (1)
- Algebraic geometry (1)
- Anisotropy (1)
- Baiu (1)
- Bifurcation parameters (1)
- Biomass (1)
- Calvin cycle (1)
- Chaotic System (1)
- Cold air surges (1)
- Complex network (1)
- Convective storms (1)
- Dominant link directions (1)
- EEG (1)
- Escherichia-coli (1)
- Extreme events (1)
- Extreme precipitation (1)
- Holocene (1)
- Hypothesis Test (1)
- India (1)
- Indian monsoon (1)
- Indian summer monsoon (1)
- Isochrones (1)
- K-means technique (1)
- Mesoscale systems (1)
- Multistationarity (1)
- North-Atlantic climate (1)
- Partial wavelet coherence (1)
- Phase Synchronization (1)
- Planetary Rings (1)
- Plio-Pleistocene (1)
- Precipitation (1)
- Precipitation events (1)
- Rainfall (1)
- Rainfall network (1)
- Rainfall patterns (1)
- Regionalization (1)
- Self-organizing map (1)
- South American monsoon system (1)
- Statistical and Nonlinear Physics (1)
- Subtropical cyclones (1)
- Surrogate Data (1)
- Teleconnection patterns (1)
- Time-varying Delay (1)
- Tropical storms (1)
- Ungauged catchments (1)
- Wavelet power spectrum (1)
- Wavelets (1)
- Z-P approach (1)
- algorithms (1)
- anatomical connectivity (1)
- bifurcation analysis (1)
- bifurcations (1)
- climate-driven evolution (1)
- cluster-analysis (1)
- coherence (1)
- complex systems (1)
- cortical network (1)
- desynchronization (1)
- dynamical cluster (1)
- dynamical transitions (1)
- functional connectivity (1)
- high-frequency force (1)
- inference (1)
- interdependences (1)
- intermittency (1)
- low-frequency force (1)
- mean residence time (1)
- monsoon (1)
- mutual information (1)
- networks (1)
- noise (1)
- nonlinear dynamics (1)
- nonlinear time series analysis (1)
- pQCT (1)
- patient immobilization (1)
- period doubling (1)
- periods (1)
- phase (1)
- proteasome (1)
- protein translocation (1)
- ratchets (1)
- recognition (1)
- records (1)
- recurrence plot (1)
- series (1)
- statistical physics (1)
- stochastic process (1)
- stochastic resonance (1)
- teleconnections (1)
- time (1)
- topological community (1)
- trabecular bone (1)
- unferring cellular networks (1)
- variability (1)
- variables (1)
- vibrational resonance (1)
- Æ Recurrence Plots (1)
Institute
- Institut für Physik und Astronomie (234)
- Interdisziplinäres Zentrum für Dynamik komplexer Systeme (48)
- Institut für Geowissenschaften (21)
- Department Psychologie (17)
- Institut für Biochemie und Biologie (4)
- Department Linguistik (3)
- Extern (3)
- Institut für Informatik und Computational Science (2)
- Mathematisch-Naturwissenschaftliche Fakultät (2)
- Department Sport- und Gesundheitswissenschaften (1)
The Voyager 2 Photopolarimeter experiment has yielded the highest resolved data of Saturn's rings, exhibiting a wide variety of features. The B-ring region between 105000 km and 110000 km distance from Saturn has been investigated. It has a high matter density and contains no significance features visible by eye. Analysis with statistical methods has let us to the detection of two significant events. These features are correlated with the inner 3:2 resonances of the F-ring shepherd satellites Pandora and Prometheus, and may be evidence of large ring paricles caught in the corotation resonances.
In the modern industrialized countries every year several hundred thousands of people die due to the sudden cardiac death. The individual risk for this sudden cardiac death cannot be defined precisely by common available, non-invasive diagnostic tools like Holter-monitoring, highly amplified ECG and traditional linear analysis of heart rate variability (HRV). Therefore, we apply some rather unconventional methods of nonlinear dynamics to analyse the HRV. Especially, some complexity measures that are basing on symbolic dynamics as well as a new measure, the renormalized entropy, detect some abnormalities in the HRV of several patients who have been classified in the low risk group by traditional methods. A combination of these complexity measures with the parameters in the frequency domain seems to be a promising way to get a more precise definition of the individual risk. These findings have to be validated by a representative number of patients.
We have used techniques of nonlinear dynamics to compare a special model for the reversals of the Earth's magnetic field with the observational data. Although this model is rather simple, there is no essential difference to the data by means of well-known characteristics, such as correlation function and probability distribution. Applying methods of symbolic dynamics we have found that the considered model is not able to describe the dynamical properties of the observed process. These significant differences are expressed by algorithmic complexity and Renyi information.
Two deterministic processes leading to roughening interfaces are considered. It is shown that the dynamics of linear perturbations of turbulent regimes in coupled map lattices is governed by a discrete version of the Kardar-Parisi-Zhang equation. The asymptotic scaling behavior of the perturbation field is investigated in the case of large lattices. Secondly, the dynamics of an order-disorder interface is modelled with a simple two-dimensional coupled map lattice, possesing a turbulent and a laminar state. It is demonstrated, that in some range of parameters the spreading of the turbulent state is accompanied by kinetic roughening of the interface.