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561
A proximal policy optimization based deep reinforcement learning framework for tracking control of a flexible robotic manipulator
Published 2025-03-01“…Identifying the optimal hyper-parameters of DRL using the grid search method, we exploit the capability of CNN in actor-critic architecture to extract the spatial dependencies in the state sequences of the dynamical system and boost the DRL performance. To improve the convergence of the proposed DRL algorithm, this study adopts the Lyapunov based reward shaping technique. …”
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562
Macroeconomic model of safe functioning of the national economy of Azerbaijan in the long-term period
Published 2019-06-01“…The basis of the macroeconomic model of safe functional organization of the national economy of the country has been laid the equation of the cyclic functioning of the national economy, as a dynamic system, developed by the author, the equation of the cyclic functioning of the national economy of the country on the long-term period. …”
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563
Study of the Windowing and Overlap-Add Operation for a Super-Gaussian Random Vibration Test
Published 2021-01-01“…To figure out the impacts of the proposed operation on the response kurtoses of a shaker table, we express the system transfer function in the time domain, and the WOA method is analysed considering the transfer function of a dynamic system. Based on the analysis, a further study is made to explain the mechanism of the kurtosis decrease due to the WOA method. …”
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564
Design of a Process Control Laboratory Curriculum Incorporating Simulation Modules and Hands-On Training for Enhanced Learning Experience
Published 2025-02-01“…Students were exposed to methodologies such as Euler's, Runge-Kutta, and Gear methods for lumped parameter systems, and finite difference methods for distributed systems, to understand the calculation basis underlying the dynamic system. Within this curriculum, students participated in simulation creation, experimentation, results documentation, and comparison with conventional laboratory results. …”
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565
Fast Simulation and Chaos Investigation of a DC-DC Boost Inverter
Published 2021-01-01“…To check the existence of bifurcations and chaos in a dynamic system, a fine-tuning procedure of a bifurcation parameter is to be carried out. …”
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566
Analysis on Influence Factors of Roadway Instability in High-Stress, Steeply Inclined Extra-Thick Coal Seam
Published 2021-01-01“…Based on bolt support theory and instability mechanism of the coal rock dynamic system, this paper puts forward the evaluation of support effect and the optimization parameters of bolt support, and the scheme of mine pressure monitoring and the corresponding support optimization system are established. …”
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567
A novel high-resolution eco-functional vegetation mapping of coastal dunes
Published 2025-02-01“…Coastal dune landscapes are dynamic systems shaped by complex biotic-abiotic interactions and impacted by human disturbances. …”
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568
Explore Knowledge-Sharing Strategy and Evolutionary Mechanism for Integrated Project Team Based on Evolutionary Game Model
Published 2019-01-01“…Then, a replicator dynamic system is established based on payoff matrix, to determine the evolutionary tendency of knowledge-sharing behavior. …”
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569
Systems science and systems thinking for public health: a systematic review of the field
Published 2015-12-01“…Our analysis of each of these categories of research highlighted areas of potential for systems science to strengthen public health efforts, while also revealing a number of limitations in the dynamic systems modelling being carried out in public health.Conclusions There is a great deal of interest in how the application of systems concepts and approach might aid public health. …”
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570
The Role of Subtropical High Pressure in the Spatial Daily Precipitation Distribution in Iran
Published 2012-02-01“…Comparing the frequency of positive phase occurrence days with that of negative phase event days in the level under study showed that during recent 50 years the aggravation days of subtropical high pressure were definitely more than weakening days of this dynamic system. Applying contingency table method and calculating χ 2 statistic during statistical period(1330-1383) showed that occurrence of precipitation in about 3.1% of studied stations(33 out of 1066) is independent of the influence of subtropical high pressure. …”
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571
Spontaneous Overgrowth of Jointing in the Working Chambers of Power Gas-Liquid Thermal Installations – Diffusion Dynamic Processes
Published 2024-08-01“…In the overview aspect, the universal modes of operation of a nonlinear dynamic system, well-known in mathematics and physics and suitable for analyzing the stability and sustainability of thermal power plants, are considered. …”
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572
SPARQ: Efficient Entanglement Distribution and Routing in Space–Air–Ground Quantum Networks
Published 2024-01-01“…Existing quantum routing algorithms focus on stationary ground nodes and utilize link distance as an optimality metric, which is unrealistic for dynamic systems, like SPARQ. Moreover, in contrast to the prior art that assumes homogeneous nodes, SPARQ encompasses heterogeneous nodes with different functionalities further complicates the entanglement distribution. …”
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573
Comparison of accuracy in freehand versus computer-assisted (dynamic and static) dental implant placement: A systematic review and meta-analysis
Published 2025-01-01“…Results: The meta-analysis included nine studies comparing dental implant accuracy across dynamic, static, and freehand placement techniques. Dynamic systems showed superior accuracy, with platform deviations of 0.64–1.73 mm, angular deviations of 2.49°–5.75°, and apical deviations of 0.89–1.86 mm. …”
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574
A statistical approach to the use of control entropy identifies differences in constraints of gait in highly trained versus untrained runners
Published 2011-11-01“…Control entropy (CE) is a complexity analysis suitable fordynamic, non-stationary conditions which allows the inference of the control effort of a dynamical system generating the signal [4]. These characteristics make CE a highly relevant time varying quantity relevant to the dynamic physiological responses associated with running. …”
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575
Advanced analysis of soil pollution in southwestern Ghana using Variational Autoencoders (VAE) and positive matrix factorization (PMF)
Published 2025-06-01“…Integrating chemometric and machine learning techniques provides a dynamic system that can monitor pollution shifts early, to aid remediation efforts in highly affected areas.…”
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576
Design and Test of a Cone Dielectric Elastomer Actuator Driving Hopping Robot
Published 2024-12-01“…However, they are often limited by their low output power, which can make their integration into dynamic systems like hopping robots particularly challenging. …”
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577
Elevational ranges of pioneer marsh species are site specific and likely shaped by different abiotic and biotic factors
Published 2025-01-01“…Abstract Salt marshes are dynamic systems whose landscape structure and resilience to disturbance depend on bio‐geomorphological interactions. …”
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578
Principal component analysis and its generalizations for any type of sequence (PCA-Seq)
Published 2020-01-01“…By the beginning of the 1980s, Takens had shown that for a dynamical system such a method makes it possible to obtain an attractor from observing only one of these variables, thereby bringing the method to a powerful theoretical basis. …”
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579
Study of Fire Plume Behavior and Maximum Ceiling Temperature Rise in a Curved Tunnel Driven by the Coupling of Blockage Effect and Longitudinal Ventilation
Published 2024-12-01“…This work highlights the multi-dimensional and non-stable plume behavior pattern in a complex tunnel fire scenario, thus providing a deeper understanding to improve the classical tunnel fire dynamic system.…”
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580
Profile in various organic soil depth shrimp pond, Tambak Inti Rakyat, Karawang
Published 2015-04-01“… ABSTRACT Organic material in the bottom of the pond is part of the land is a complex and dynamic system, which is sourced from the rest of the feed, plants, and or animals found in the soil that continuously change shape, because it is influenced by biology, physics, and chemistry. …”
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