Showing 3,421 - 3,440 results of 3,993 for search '"uncertainty"', query time: 0.09s Refine Results
  1. 3421

    Dynamic Surface Control with High-Order LESO Compensation for Near-Space Vehicle by Ouxun Li, Li Deng, Shutong Huang, Jianqi Wang, Ju Jiang

    Published 2022-01-01
    “…Aimed at the flight control problem of a near-space vehicle (NSV) with uncertainties such as parameter perturbation and external disturbance, a novel dynamic surface control (DSC) method with high-order linear extended state observer (HLESO) compensation is proposed in this paper. …”
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  2. 3422

    Contact angle for theoretical parameterization of immersion freezing rate inferred from the freezing temperature by Jun-Jie Chang, Jen-Ping Chen, Pei-Hsin Liu

    Published 2024-12-01
    “…The derived contact angles compared well with values independently obtained in earlier studies based on a pure-CNT approach using laboratory nucleation rate data. The uncertainties in contact angle calculation associated with the definition of onset nucleation rate, the activation energy, and the ice-nuclei size are estimated to be about ± 1–2°, ± 1–5°, and ± 1–2°, respectively, among different ice-nucleating particles.…”
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  3. 3423

    Prescribed Performance Tracking Control for the Hypersonic Vehicle with Actuator Faults by Zhenghui Yang, Wentao He, Yushan He, Yaen Xie, Jun Li, Shuo Song

    Published 2021-01-01
    “…This paper provides a solution for the trajectory tracking control of a hypersonic flight vehicle (HFV), which is encountered performance constraints, actuator faults, external disturbances, and system uncertainties. For the altitude and velocity control subsystems, the backstepping-based dynamic surface control (DSC) strategy is constructed to guarantee the predefined constraint of tracking errors. …”
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    Article
  4. 3424

    Risk Perception and Key Beliefs on Business Adaptation Behavior of Family Farmers: Empirical Evidence from Sichuan Province, China by Yu Mou, Xiaofeng Li

    Published 2025-01-01
    “…Family farmers face various business risks, including natural disasters, policies, technology adoption, and market uncertainties. This paper develops a conceptual framework for the formation mechanism of family farmers’ business adaptation behaviors by linking “risk perception, key beliefs, and adaptation behavior”. …”
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  5. 3425

    Optimal Fuzzy Proportional-Integral-Derivative Control for a Class of Fourth-Order Nonlinear Systems using Imperialist Competitive Algorithms by S. Hadipour Lakmesari, Z. Safipour, M. J. Mahmoodabadi, Yousef Ibrahim, Saleh Mobayen

    Published 2022-01-01
    “…However, the PID controller lacks robustness to uncertainties and stability under disturbances. To address this problem, this paper proposes an optimal fuzzy-PID technique for a two-degree-of-freedom cart-pole system. …”
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  6. 3426

    Output Tracking via Adaptive Backstepping Higher Order Integral Sliding Mode for Uncertain Nonlinear Systems by M. Pervaiz, Q. Khan, A. I. Bhatti, S. A. Malik

    Published 2014-01-01
    “…The component of control law designed via backstepping is continuous which shows robustness against parametric uncertainties where as the discontinuous control component provides robustness against unmodeled dynamics and external disturbances. …”
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    Article
  7. 3427

    The relative importance of uncertain parameters and structural formulation for electricity systems planning in Kenya and Benin by Nandi Moksnes, William Usher

    Published 2025-02-01
    “…This paper explores the relative importance of path-dependent modeling decisions, such as spatial and temporal resolution, and parametric uncertainties, such as final energy demand, discount rate, and capital costs. …”
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  8. 3428

    Probabilistic fatigue S-N curves derivation for notched components by P. Raposo, J.A.F.O. Correia, A.M.P. De Jesus, R.A.B. Calçada

    Published 2017-09-01
    “…In this paper, a unified approach is presented to generate probabilistic S-N curves to be applied to structural components, accounting for uncertainties in material properties. The approach is particularly demonstrated for a plate with a circular hole, made of puddle iron from the Portuguese Eiffel Bridge. …”
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  9. 3429

    Parameter Tuning Method of Active Disturbance Rejection Controller for AUVs Based on VRFT by Xiaodong HOU, Rui YANG, Ming LI

    Published 2024-12-01
    “…Active disturbance rejection control(ADRC) is model-independent and exhibits strong robustness against disturbances, effectively addressing the uncertainties of autonomous undersea vehicle(AUV) models and complex external environments. …”
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  10. 3430

    Strain accumulation in the Mentawai Forearc Sliver, Indonesia, inferred from continuous GNSS-derived strain rate by Leni Sophia Heliani, Cecep Pratama, Adi Wibowo, David Prambudi Sahara, Susilo Susilo, Sidik Tri Wibowo, Ayu Nur Safii, Oktadi Prayoga, Ajat Sudrajat, Mizan Bustanul Fuady Bisri, Evi Dwi Kurniasari, Sheilla Evelinda, Nicholas Genta Setiawan Gunawan

    Published 2025-01-01
    “…The principal strain rate, dilatation rate, and maximum shear strain rate are about 0.13 microstrain/yr, 0.2 microstrain/yr, and 0.1 microstrain/yr, respectively, with the range of its uncertainties between 0.01 and 0.04 microstrain/yr. The dilatation and maximum shear strain rates reveal the spatial coverage of strike-slip duplex and backthrust tectonics along the Mentawai Forearc Sliver.…”
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  11. 3431

    Industry 4.0: digital twins characteristics, applications, and challenges in-built environments by Heni Zribi, Taycir Ben Abid, Abdelkarim Elloumi, Yasmina Hani, Besma Bechir Graba, Aderrahman Elmhamedi

    Published 2025-12-01
    “…While DT technology offers considerable potential, it remains in its infancy and faces challenges such as integration with other Industry 4.0 technologies and uncertainties about their actual uses and applications still exist. …”
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  12. 3432

    Multi-UUV Cooperative Dynamic Maneuver Decision-Making Algorithm Using Intuitionistic Fuzzy Game Theory by Lu Liu, Lichuan Zhang, Shuo Zhang, Sheng Cao

    Published 2020-01-01
    “…Underwater environments with weak connectivity, underwater noise, and dynamic uncertainties are fully considered through intuitionistic fuzzy sets, which solves one of the main problems in making decisions underwater. …”
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  13. 3433

    Baroreflex Activation Therapy for the Treatment of Drug-Resistant Hypertension: New Developments by Teba Alnima, Peter W. de Leeuw, Abraham A. Kroon

    Published 2012-01-01
    “…Also significant improvements in several cardiac parameters have been shown by BAT in hypertensive patients, which set the basis for further research to evaluate BAT as a therapy for systolic heart failure. Yet important uncertainties need to be clarified to guarantee beneficial effects; hence not all participants seem to respond to BAT.…”
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  14. 3434

    Research on Aircraft Attack Angle Control Considering Servo-Loop Dynamics by Xiaodong Liu, Yan Wang, Wanwei Huang, Zongxia Jiao

    Published 2015-01-01
    “…This paper presents a novel robust attack angle control approach, which can effectively suppress the impacts from system uncertainties and servo-loop dynamics. A second-order linear model of electromechanical servo loop is considered in the modeling and design processes. …”
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  15. 3435

    Inverse neutrosophic mixed graphs by Thempaavai Jayaprakash, Antony Cripsin Sweety Charles Selvaraj

    Published 2024-07-01
    “…By employing INMG in this context, the article demonstrates how the model can effectively capture and represent the complex relationships within social networks, taking into account the inherent uncertainties and indeterminacies present in such systems.…”
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  16. 3436

    An Open-Source Multi-Robot Framework System for Collaborative Environments Based on ROS2 by Francisco Yumbla, Marcelo Fajardo-Pruna, Anthonny Piguave, Diego Ronquillo, Ricardo Ortiz, Jongseong Brad Choi, Gabriel Diaz, Xabiel G. Paneda, Hyungpil Moon

    Published 2025-01-01
    “…A centralized architecture was obtained with an autonomous navigation module for the planning and robot routes monitoring, a computer vision module for the location and management of uncertainties, and a task controller module to assign mobilization mission objects. …”
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  17. 3437

    Disturbance Observer-Based Dynamic Surface Control for Servomechanisms with Prescribed Tracking Performance by Xingfa Zhao, Wenhe Liao, Tingting Liu, Dongyang Zhang, Yumin Tao

    Published 2025-01-01
    “…The critical design challenge for a class of servomechanisms is to reject unknown dynamics (including internal uncertainties and external disturbances) and achieve the prescribed performance of the tracking error. …”
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  18. 3438

    Status of Biomass Derived Carbon Materials for Supercapacitor Application by Talam Kibona Enock, Cecil K. King’ondu, Alexander Pogrebnoi, Yusufu Abeid Chande Jande

    Published 2017-01-01
    “…Environmental concerns and energy security uncertainties associated with fossil fuels have driven the world to shift to renewable energy sources. …”
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  19. 3439

    A Mixed Prediction Model of Ground Subsidence for Civil Infrastructures on Soft Ground by Kiyoshi Kobayashi, Kiyoyuki Kaito

    Published 2012-01-01
    “…In the planning and design stage, there exist many uncertainties in geotechnical conditions, and it is impossible to estimate the ground subsidence process by deterministic methods. …”
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  20. 3440

    Enhancing Canada's sustainable development goals: Leveraging neutrosophic programming for agenda 2030 by Anas Melethil, Nabil Ahmed Khan, Golam Kabir, Ahmad Yusuf Adhami, Irfan Ali

    Published 2025-02-01
    “…Neutrosophic programming proved effective in managing uncertainties and imprecise data, particularly in addressing complex, sometimes conflicting objectives like those within the SDGs. …”
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