Showing 521 - 540 results of 708 for search '"complex system"', query time: 0.06s Refine Results
  1. 521
  2. 522

    Fault Detection Method of Low-Orbit Satellite Internet Based on Deep Uncertainty Estimation Network by Wenyu SUN, Weijia ZHANG, Limin WANG

    Published 2022-06-01
    “…Low-orbit satellite internet technology is a highly innovative direction of development with few existing cases.Low-orbit satellite internet systems are characterised by a large number of constituent satellites, frequent topology changes, and complex payload types.The fault categories of such complex systems are diffi cult to be completely mastered with methods such as expert systems or practical engineering experience.Moreover, traditional fault detection and diagnosis methods tailored for a single satellite and a single functionality are diffi cult to predict uncertain faults under sophisticated and transient environment conditions.For the above problems, a fault prediction model based on the deep uncertainty estimation network for low-orbit satellite internet was proposed, and was verifi ed used self-collected data from simulated joint satellite-ground tests.Experimental results showed that the proposed method could improved the detection accuracy of known types of faults and demonstrated particular eff ectiveness in predicting faults of unknown types.…”
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  3. 523

    Heterogeneity and Environmental Preferences Shape the Evolution of Cooperation in Supply Networks by Dong Mu, Xiongping Yue

    Published 2021-01-01
    “…Supply networks as complex systems are significant challenges for decision-makers in predicting the evolution of cooperation among firms. …”
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  4. 524

    Digital Transformation Program of Production and Logistics Systems: Methodological Aspects of Creating by O. V. Miasnikova

    Published 2023-02-01
    “…In contrast to existing studies, the article presents solutions to methodological aspects of creating a transformation program based on optimal design of complex systems. The order of program development and the logical sequence of decisions are determined. …”
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    The Dialogical, The Ecological and Beyond by Jon Goodbun, Ben Sweeting

    Published 2021-06-01
    “…They look at the role of dialogue, the dialogical (signifying signs), and the limitations of the dialogical as one considers contemporary processes of cybernetisation and how “asignifying signs” are produced and exchanged within complex systems of all kinds. Prompted by the opening question referring to cybernetics as a general study of information processes, focusing on the production, exchange, and consumption of meaning, not limited to a focus on digital logic, Goodbun and Sweeting revisit a plethora of positions on dialogue including those of Gordon Pask, Gregory Bateson, Ranulph Glanville, David Bohm among others. …”
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  7. 527
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    Dynamics of systems with varying number of particles: from Liouville equations to general master equations for open systems by Mauricio J. del Razo, Luigi Delle Site

    Published 2025-01-01
    “…This equation embeds all the previous models and can potentially model a much larger range of complex systems, ranging from molecular to social agent-based dynamics.…”
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  11. 531

    Bounded Analysis and Practical Tracking Control of Complex Stochastic Nonlinear Systems with Unknown Control Coefficients by Long-Chuan Guo, Xiang-Kun Fang

    Published 2020-01-01
    “…In the existing research results, most of the complex systems are controlled in a certain direction, which leads to the disconnection between theoretical results and practical applications. …”
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  12. 532

    Aggregation modes of anionic oxacarbocyanines with polycations in solution and in ESAMs by Andrea Lodi, Glauco Ponterini

    Published 2006-01-01
    “…Based on these observations, we suggest that energetic factors associated with cofacial dye/dye van der Waals interactions, ultimately related with the degree of planarity of the conjugated chromophores, may still play a major role in controlling aggregation equilibria in these complex systems.…”
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  13. 533

    Detection of dynamic communities in temporal networks with sparse data by Nataša Djurdjevac Conrad, Elisa Tonello, Johannes Zonker, Heike Siebert

    Published 2025-01-01
    “…Abstract Temporal networks are a powerful tool for studying the dynamic nature of a wide range of real-world complex systems, including social, biological and physical systems. …”
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  14. 534

    Reaction Network Modeling of Complex Ecological Interactions: Endosymbiosis and Multilevel Regulation by Tomas Veloz, Daniela Flores

    Published 2021-01-01
    “…Therefore, modeling endosymbiosis requires a complex-systems and multilevel approach. We propose a model of endosymbiosis based on reaction networks, where species of the reaction network represent either ecological species, resources, or conditions for the ecological interactions to happen, and the endosymbiotic interaction mechanisms are represented by different sequences of reactions (processes) in the reaction network. …”
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  15. 535

    Fractional Order Stochastic Differential Equation with Application in European Option Pricing by Qing Li, Yanli Zhou, Xinquan Zhao, Xiangyu Ge

    Published 2014-01-01
    “…In recent years, fractional order ordinary differential equation is used as an effective instrument for describing the memory effect in complex systems. In this paper, we establish a fractional order stochastic differential equation (FSDE) model to describe the effect of trend memory in financial pricing. …”
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  16. 536

    Massive vulval edema with severe preeclampsia. Case report by Nelson Pérez Rumbaut, José Luis Durán Páez, José Luis Gómez Miranda.

    Published 2009-11-01
    “…A very peculiar manifestation of edema on preeclampsia is massive vulval edema, which appears as a highly rare complication, in whose basis there is a complex, systemic pathological process involved. We present a case of a pregnant woman who was admitted with high blood pressure values and excessive weight gain, plus very noticeable general edemas, and during her stay developed massive vulval edema. …”
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  17. 537

    Key tips to shift student perspectives through transformative learning in medical education by Efraim J. Hart, Merel H. de Heer-Koster, Maria van der Harst, Joyce L. Browne, Fedde Scheele

    Published 2025-02-01
    “…These challenges demand that medical education adapts, to equip health professionals with the competencies required to navigate and transform complex systems. This is where transformative learning theory can play a crucial role. …”
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  18. 538

    Optimization of Extended Warranty Cost for Multi-Component Products with Failure Interaction by Rongcai Wang, Enzhi Dong, Zhonghua Cheng, Liqing Rong, Qian Wang

    Published 2021-01-01
    “…In practice, the assumption of failure independence between components is seldom valid, especially for those complex systems with complicated failure mechanism. Users can decide whether to purchase extended warranty (EW) at the end of basic warranty, and there are many factors that influence this decision, such as product reliability and EW price. …”
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  19. 539

    Conciliating accuracy and efficiency to empower engineering based on performance: a short journey by Chinesta, Francisco, Cueto, Elias

    Published 2023-06-01
    “…The art of modeling for describing the behavior of complex systems from the solution of partial differential equations that are expected to govern their responses. …”
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  20. 540

    On the Synchronizability of Quadratic Integrate and Fire Neurons by Koray Çiftçi

    Published 2024-03-01
    “…Synchronization is a property of complex systems that manifests itself as the emergence of collective behavior from local interactions. …”
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