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  • 1
    Online Resource
    Online Resource
    Berlin, Heidelberg :Springer Berlin / Heidelberg,
    Keywords: Probabilities. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (472 pages)
    Edition: 1st ed.
    ISBN: 9783642832529
    Series Statement: Lecture Notes in Engineering Series ; v.32
    Language: English
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  • 2
    Keywords: Structural dynamics. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (361 pages)
    Edition: 1st ed.
    ISBN: 9783642845314
    DDC: 531
    Language: English
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  • 3
    Keywords: Structural dynamics. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (359 pages)
    Edition: 1st ed.
    ISBN: 9783642845345
    DDC: 624.171
    Language: English
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  • 4
    Keywords: Dynamics -- Congresses. ; Stochastic processes -- Congresses. ; Nonlinear theories -- Congresses. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (331 pages)
    Edition: 1st ed.
    ISBN: 9789400707320
    Series Statement: IUTAM Bookseries Series ; v.29
    DDC: 519.23
    Language: English
    Note: Intro -- Title -- Preface -- Contents -- Part 1 Response and Reliability of Nonlinear Stochastic Systems -- Nonlinear Stochastic Ecosystem of Two Competing Species -- Introduction -- Characteristics of Deterministic Nonlinear System -- Stochastic Nonlinear Model -- Gaussian White-Noise Model -- Randomized Sinusoidal Process Model -- Conclusions -- References -- Energy Transition Rate at Peptide-Bond Using Stochastic Averaging Method -- Introduction -- PB Breaking in ESC and Its Stochastic Dynamical Model -- Energy Transition Rate in the Case of Fermi Resonance -- PB Breaking Rate Affected by Oxygen Ion -- Conclusions -- References -- A New Method for the Probabilistic Solutions of Large-Scale Nonlinear Stochastic Dynamic Systems -- Introduction -- Problem Formulation -- Subspace Method -- Numerical Analysis -- Conclusions -- References -- Nonstationary Probability Densities of Nonlinear Multi-Degree-of-Freedom Systems under Gaussian White Noise Excitations -- Introduction -- Approximate Nonstationary Probability Density -- An Illustrative Example -- Conclusions -- References -- Feature Extraction within the Fei-Tsui Arch Dam under Environmental Variations -- Introduction -- Measurement Systems of the Fei-Tsui Arch Dam -- System Identification from Seismic Response Data -- Deformation Monitoring from Long-Term Data -- Conclusions -- References -- About Some Schemes of Study for Systems with Different Forms of Time Aftereffect -- Introduction -- Neutral Systems with Multiple Constant Delays -- Scheme of Study -- Equations for Moments -- Examples -- Conclusions -- References -- Reliability of Linear and Nonlinear Dynamic Systems under Multiplicative and Additive Noise -- Introduction -- Path Integration Approach to Reliability -- Numerical Examples -- A Linear Oscillator with Multiplicative and Additive Noise. , A Duffing Oscillator with Multiplicative and Additive Noise -- Conclusions -- References -- Numerical Solution of Fokker-Planck Equation for Nonlinear Stochastic Dynamical Systems -- Introduction -- Path Integration Method -- Finite Difference Method -- Conclusions -- References -- An Approximate Approach for Nonlinear System Evolutionary Response Spectrum Determination via Wavelets -- Introduction -- Harmonic Wavelet-Based Stochastic Process Representation and EPS Estimation -- Harmonic Wavelet Transform -- Locally Stationary Wavelet Process Representation -- EPS Estimation -- Harmonic Wavelet-Based Statistical Linearization -- Nonlinear Response EPS Determination -- Duffing Oscillator Application -- Conclusions -- References -- On Information/Entropy Flow in Stochastic Dynamical Systems -- Introduction -- Entropy and Relative Entropy for SDS -- Entropy in Liouvillian Systems -- Entropy Rate of Systems with External Random Excitation -- Relative Entropy for True and Idealized Models -- Non-stationary Dynamics -- Vibratory System with Time-Varying Parameters -- Conclusions -- References -- Finite Dimensional Markov Process Approximation for Time-Delayed Stochastic Dynamical Systems -- Introduction -- The FDMP Method -- Applications -- FPK Equation -- Moment Equations -- Reliability -- First-Passage Time Probability -- Pontryagin-Vitt Equations -- Conclusion -- References -- Response Analysis of Nonlinear Multi-degree of Freedom Systems to Non-Gaussian Random Excitations -- Introduction -- Nonlinear Systems under Gaussian Excitations -- Nonlinear Systems under Non-Gaussian Excitations -- Recursive Expressions for Systems under Non-Gaussian Random Excitations -- Non-Gaussian Random Excitation Models -- Time Co-ordinate Transformation -- Adaptive Time Scheme -- System with Asymmetric Nonlinear Stiffness -- Two Dof System with Asymmetric Stiffness. , Computed Results and Discussion -- Concluding Remarks -- References -- Stationary and Nontationary Response Probability Density Function of a Beam under Poisson White Noise -- Introduction -- Linear Oscillations of a Beam under Transversal Poisson Pulses -- Nonlinear Oscillations of a Beam under Transversal Poisson Pulses -- Solution of Higher Order τ -- Conclusions -- References -- Steady State Analysis of Stochastic Systems with Multiple Time Delays -- Introduction -- Delay Fokker-Planck Equations -- Approximate Stationary Solution -- Case Study and Numerical Simulations -- References -- Stochastic Averaging of Strongly Nonlinear Oscillators under Poisson White Noise Excitation -- Introduction -- Stochastic Averaging Method -- Example -- Conclusions -- References -- Part 2 Stability, Bifurcation and Chaos of Nonlinear Stochastic Systems -- Marginal Instability and Intermittency in Stochastic Systems -- Introduction -- Systems with Slow Variations of Parameters -- Systems with Rapid Variations of Parameters -- Conclusions -- References -- A Practical Strategy to Study Stochastic Chaos -- Introduction -- Implement of Orthogonal Polynomial Approximation -- Typical Phenomena of Stochastic Chaos -- Example 1 - Stochastic Chaos in Duffing Oscillator -- Example 2 - Control of Chaos by Random Noise or Chaotic Driving -- Example 3- Synchronization Induced by Common Noise -- Conclusions -- References -- Fractal Basin Boundaries and Chaotic Dynamics in the Randomly-Driven Henon-Heiles Oscillator -- Introduction -- Noisy Exit Basins in the H-H Oscillator -- Noisy Chaotic Dynamics -- Conclusions -- References -- Moment Lyapunov Exponent for a Three Dimensional Stochastic System -- Introduction -- Equations -- Asymptotic Analysis -- The \_ε^0 Order Equation -- The \_ε^1 Order Equation -- Solution of the Eigenvalue Problem. , Numerical Results and Conclusions -- References -- Bifurcation Analysis of Stochastic Non-smooth Systems -- Introduction -- Damping Induced Bifurcation -- Excitation Induced Bifurcation and Sensitivity to Initial Conditions -- Sensitivity to Initial Condition -- Conclusions -- References -- Part 3 Resonance and Synchronization of Nonlinear Stochastic Systems -- Synchronization Behavior of a Clustered Neuronal Network in a Noisy Environment -- Introduction -- Mathematical Model -- Main Results -- Summary -- References -- Stochastic Parameter Resonance of Road-Vehicle Systems and Related Bifurcation Problems -- Introduction to the Problem -- Spectral Analysis of Road-Vehicle Systems -- Covariance Analysis of Road-Vehicle Systems -- Extensions to Nonlinear Car Vibrations -- Asymptotic Stability of Stationary Car Vibrations -- Conclusions -- References -- A Review of Parameter-Induced Stochastic Resonance and Current Applications in Two-Dimensional Image Processing -- Review of Parameter-Induced Stochastic Resonance -- 2D-PSR System and the Corresponding Fokker-Planck Equation -- Theory of 2D-PSR for Degraded Image Processing -- Example of 2D-PSR Image Restoration -- Example of 2D-PSR Pattern Recognition of Remote Sensing Image -- Conclusions -- References -- Part 4 Control of Nonlinear Stochastic Systems -- Design of Damper Viscous Properties for Semi-active Control of Asymmetric Structures -- Introduction -- Device Sizing for Seismic Excited Frame Structures -- Reference Linear Active Control Feedback -- Semi-active Control Design -- Semi-active Control Strategies -- Implementation on a Prototype Structure -- Conclusion -- References -- Iterative Procedures in Application of the LQGP Approach to the Duffing Oscillator -- Introduction -- Problem Formulation -- Quasi-Optimal Nonlinear Control Problem -- Procedure Convergence for the Duffing Oscillator. , Example -- Conclusions -- References -- Stochastic Optimal Time-Delay Control and Stabilization of Quasi-Integrable Hamiltonian Systems -- Introduction -- Formulation of Stochastic Optimal Time-Delay Control -- Conversion to Stochastic Optimal Control Problems without Time-Delay -- Time-Delay Feedback Stabilization -- Example -- Conclusions -- References -- Part 5 Modeling of Stochastic Dynamical Systems and Stochastic Excitations -- Modeling of Stochastic Dynamic Excitations and the Probability Density Evolution Theory for Nonlinear Stochastic Dynamics -- Introduction -- Physical Stochastic Modeling of Dynamic Excitations -- Basic Thoughts of Physical Stochastic Systems -- Physical Stochastic Models: Exemplified by Fluctuating Wind -- Stochastic Responses of Nonlinear Structures via Probability Density Evolution Equation -- Fundamentals of the Probability Density Evolution Method -- Numerical Implementation Procedure -- Numerical Examples -- Conclusions -- References -- On the Consideration of Model Uncertainties in Model Updating of Dynamic Systems -- Introduction -- Bayesian Model Updating -- The Prediction Error in Bayesian Updating -- Numerical Example -- Updated Structural Parameters -- Posterior Modal Properties -- Posterior Prediction Error -- Conclusions -- References -- Stochastic Reduced Order Models for Uncertain Infinite-Dimensional Geometrically Nonlinear Dynamical Systems- Stochastic Excitation Cases -- Introduction -- Reduced Order Modeling of Geometrically Nonlinear Structures -- Basis Functions Selection -- Form of the Reduced Order Model Equations -- Identification of the Stiffness Coefficients -- Nonparametric Uncertainty Modeling -- Effects of Uncertainty on a Cantilevered Structure -- Summary -- References -- Part 6 Structural Health Monitoring. , Decentralized Random Decrement Technique for Data Aggregation and System Identification in Wireless Smart Sensor Networks.
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  • 5
    Keywords: Dynamics -- Congresses. ; Stochastic processes -- Congresses. ; Nonlinear theories -- Congresses. ; Electronic books.
    Description / Table of Contents: Proceedings of the IUTAM Symposium held in Monticello, IL, USA, 26-30 August 2002.
    Type of Medium: Online Resource
    Pages: 1 online resource (469 pages)
    Edition: 1st ed.
    ISBN: 9789401001793
    Series Statement: Solid Mechanics and Its Applications Series ; v.110
    DDC: 531/.11
    Language: English
    Note: Intro -- Contents -- Preface -- Index.
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  • 6
    Electronic Resource
    Electronic Resource
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 89 (2001), S. 7484-7486 
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: High oxygen pressure annealed PrBa2Cu3O7−y (y∼0) cuprates were prepared in order to study the effect of oxygen stoichiometric parameter y on the unusual Pr/Cu magnetic properties and/or recently reported superconductivity. The oxygen-rich orthorhombic 123-chain phase is highly unstable under high-oxygen pressure synthesis and decomposes completely in 10 bar pressure. For a smaller 2 bar prepared sample a relatively clean phase was preserved with an oxygen parameter y=0.05, as compared with y=0.11 from a conventional 1 bar flowing oxygen method. No superconductivity can be detected for all high-oxygen pressure prepared samples. Instead, Mott-insulator behavior with anomalous high Pr ordering TN(Pr)=19 K was observed for PrBa2Cu3O6.95. Comparison with other Pr/Ba intersubstituted Pr1−xBa2−xCu3O7−y cuprates is discussed. © 2001 American Institute of Physics.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Phytochemistry 25 (1986), S. 1988-1989 
    ISSN: 0031-9422
    Keywords: Hedyotis diffusa ; Rubiaceae ; anthraquinone.
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 8
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    PANGAEA
    In:  Supplement to: Riedinger, Natascha; Brunner, B; Lin, Y S; Vossmeyer, Antje; Ferdelman, Timothy G; Jørgensen, Bo Barker (2010): Methane at the sediment–water transition in Black Sea sediments. Chemical Geology, 274(1-2), 29-37, https://doi.org/10.1016/j.chemgeo.2010.03.010
    Publication Date: 2024-01-20
    Description: We present high resolution profiles for the methane concentration and the carbon isotope composition of methane from surface sediments and from the sediment-water transition in the Black Sea. At shallow water sites methane migrates from the sediment into the water column, and the magnitude of this upward migrating flux depends on the depth of the sulfate-methane transition (SMT) in the sediment. The isotope data reveal that the sediments at shallow water sites are a source for methane depleted in 13C relative to the isotope composition of methane in the water column. At deep water sites the methane concentration first decreases with depth in the sediment to reach lowest values at the Unit I to Unit II transition. Below this transition the concentration increases again. Numerical modeling of methane concentration and isotope data shows that high methane oxidation rates occur in the surface sediment layer, indicating that the removal of methane in the surface sediments is not related to the anaerobic oxidation of methane coupled to sulfate reduction that occurs a few meters deep in the sediment, at the SMT. Instead, near-surface methane consumption in the euxinic Black Sea sediments appears to be related to lithological stratification. Furthermore, a map of the diffusive methane fluxes in the Black Sea surface sediments indicates that approximately half of the Black Sea seafloor acts as a sink for methane and thus limits the flux of methane to the atmosphere.
    Keywords: Center for Marine Environmental Sciences; MARUM
    Type: Dataset
    Format: application/zip, 15 datasets
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  • 9
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    PANGAEA
    In:  Supplement to: Gao, Guang; Liu, Yameng; Li, Xinshu; Feng, Zhihua; Xu, Juntian; Lin, Y S (2016): An ocean acidification acclimatised green tide alga is robust to changes of seawater carbon chemistry but vulnerable to light stress. PLoS ONE, 11(12), e0169040, https://doi.org/10.1371/journal.pone.0169040
    Publication Date: 2024-03-15
    Description: Ulva is the dominant genus in the green tide events and is considered to have efficient CO2 concentrating mechanisms (CCMs). However, little is understood regarding the impacts of ocean acidification on the CCMs of Ulva and the consequences of thalli's acclimation to ocean acidification in terms of responding to environmental factors. Here, we grew a cosmopolitan green alga, Ulva linza at ambient (LC) and elevated (HC) CO2 levels and investigated the alteration of CCMs in U. linza grown at HC and its responses to the changed seawater carbon chemistry and light intensity. The inhibitors experiment for photosynthetic inorganic carbon utilization demonstrated that acidic compartments, extracellular carbonic anhydrase (CA) and intracellular CA worked together in the thalli grown at LC and the acquisition of exogenous carbon source in the thalli could be attributed to the collaboration of acidic compartments and extracellular CA. Contrastingly, when U. linza was grown at HC, extracellular CA was completely inhibited, acidic compartments and intracellular CA were also down-regulated to different extents and thus the acquisition of exogenous carbon source solely relied on acidic compartments. The down-regulated CCMs in U. linza did not affect its responses to changes of seawater carbon chemistry but led to a decrease of net photosynthetic rate when thalli were exposed to increased light intensity. This decrease could be attributed to photodamage caused by the combination of the saved energy due to the down-regulated CCMs and high light intensity. Our findings suggest future ocean acidification might impose depressing effects on green tide events when combined with increased light exposure.
    Keywords: Alkalinity, total; Alkalinity, total, standard deviation; Aragonite saturation state; Benthos; Bicarbonate ion; Bicarbonate ion, standard deviation; Bottles or small containers/Aquaria (〈20 L); Calcite saturation state; Calculated using CO2SYS; Calculated using seacarb after Nisumaa et al. (2010); Carbon, inorganic, dissolved; Carbon, inorganic, dissolved, standard deviation; Carbonate ion; Carbonate ion, standard deviation; Carbonate system computation flag; Carbon dioxide; Carbon dioxide, standard deviation; Chlorophyll a; Chlorophyll a, standard deviation; Chlorophyll b; Chlorophyll b, standard deviation; Chlorophyta; Coast and continental shelf; Electron transport rate, relative; Electron transport rate, relative, standard deviation; EXP; Experiment; Figure; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Growth/Morphology; Growth rate; Growth rate, standard deviation; Laboratory experiment; Lianyungang_OA; Light; Macroalgae; Net photosynthesis rate; Net photosynthesis rate, standard deviation; Non photochemical quenching; Non photochemical quenching, standard deviation; North Pacific; OA-ICC; Ocean Acidification International Coordination Centre; Partial pressure of carbon dioxide, standard deviation; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); pH; pH, standard deviation; Plantae; Potentiometric; Potentiometric titration; Primary production/Photosynthesis; Registration number of species; Salinity; Single species; Species; Temperate; Temperature, water; Treatment; Type; Ulva linza; Uniform resource locator/link to reference
    Type: Dataset
    Format: text/tab-separated-values, 1264 data points
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  • 10
    Publication Date: 2017-04-03
    Description: Ocean margin sediments have been considered as important sources of dissolved organic carbon (DOC) to the deep ocean, yet the contribution from advective settings has just started to be acknowledged. Here we present evidence showing that near-surface heating of sediment in the Guaymas Basin, a young extensional depression, causes mass production and discharge of reactive dissolved organic matter (DOM). In the sediment heated up to ~100 °C, we found unexpectedly low DOC concentrations in the pore waters, reflecting the combined effect of thermal desorption and advective fluid flow. Heating experiments suggested DOC production to be a rapid, abiotic process with the DOC concentration increasing exponentially with temperature. The high proportions of total hydrolyzable amino acids and presence of chemical species affiliated with activated hydrocarbons, carbohydrates and peptides indicate high reactivity of the DOM. Model simulation suggests that at the local scale, near-surface heating of sediment creates short and massive DOC discharge events that elevate the bottom-water DOC concentration. Because of the heterogeneous distribution of high heat flow areas, the expulsion of reactive DOM is spotty at any given time. We conclude that hydrothermal heating of young rift sediments alter deep-ocean budgets of bioavailable DOM, creating organic-rich habitats for benthic life.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
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