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461
A Machine Learning Method for the Fast Simulation of the Scattering Characteristics of a Target Under a Planar Layered Medium
Published 2025-04-01“…Using the detection of rebar buried in concrete under sand as the GPR application scenario, with scene parameters such as concrete moisture content, rebar radius, and burial depth, scattering echo signals are obtained via Finite Difference Time Domain (FDTD) simulation. …”
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462
DESIGN AND STRESS ANALYSIS OF RX-122 ROCKET MOTOR TUBE USING NUMERICAL METHOD
Published 2024-12-01“…The findings indicate that only the 12th design, featuring a wall thickness, cap thickness, and fillet radius of 5, 20, and 20 mm, satisfies the specified criteria. …”
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463
A Mathematical Model to Study Defensive Metrics in Football: Individual, Collective and Game Pressures
Published 2024-12-01“…Then, we apply these concepts to football matches, considering various factors such as players and the radius of the area of influence and examining pressure efficiency through mean unitary pressure. …”
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464
Wear Prediction and Mechanism Study of Tunnel Boring Machine Disc Cutter Breaking in Hard–Soft Rock Considering Thermal Effect
Published 2025-04-01“…The wear prediction model is useful for determining the replacement interval of the cutter and improving the rock-breaking efficiency.…”
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465
Multimodal Lotus Effect Algorithm for Engineering Optimization Problems
Published 2025-04-01“…M‐LEA addresses this limitation by incorporating a roaming technique with independently evolving subpopulations, enabling it to navigate multimodal spaces without requiring parameters such as radius or prior information about the number or distribution of optima. …”
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466
A decoupling method for wheel-rail contact forces of heavy-duty trains based on big data and neural networks
Published 2025-03-01“…The subsequent analysis of strain sensitivity at the wheel periphery determined the optimal strain collection radius and the layout of collection points on the train wheels. …”
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467
The role of multivalent cations in determining the cross-linking affinity of alginate hydrogels: A combined experimental and modeling study
Published 2024-11-01“…The deviation of Cu²⁺ (transition metal ion) from the expected trend in ion interactions suggests that coordination chemistry, along with ionic radius, valence, and cation coordination abilities, plays a significant role in determining interaction strength with alginate. …”
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468
First results of acoustic tags using for studies of migrations of siberian taimen Huho taimen (Salmonidae) in the Tugur River basin (northwestern Okhotsk Sea)
Published 2020-09-01“…In 2017–2019, 25 out of 29 tagged fish were registered by acoustic equipment that indicates high efficiency of the method (86.2 %). Distance from the release point to the point of tag registration varied from 0.2 to 39.8 km. …”
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469
Development of a mathematical model for the formation of a semi-convex helicoid shape of the knife of the executive body of the geokhod
Published 2025-04-01“…It is noted that it is necessary to take into account geometric parameters such as the radius of the circle, the angle of inclination of the section and the thickness of the knife. …”
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470
Nonlinear Path Optimization Algorithm for Mining Trucks Based on Two-Layer Trust Region Strategy
Published 2024-12-01“…Dynamic adjustments to the trust region radius ensure effective response to nonlinear characteristics in the path optimization model. …”
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471
Study of Self-lensing/Eclipsing Signals in Edge-on Double White-dwarf Systems
Published 2025-01-01“…In common DWDs, the Einstein radii have similar orders of magnitude to the radii of the white dwarfs (WDs), and the projected source and lens radii normalized to the Einstein radius ( ρ _⋆ and ρ _l ) are ∼1. Both of them are reduced with the orbital period and the lens mass. …”
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472
Severity of inversion effects of atmospheric precipitation in the kazakh part of altai and methods of their assessment
Published 2025-01-01“…Another important indicator was the degree of afforestation of the territory around the weather stations within a radius of 30 km. Standard programs of the least squares method and matrix inversion were used for the calculation. …”
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473
A Crossover Adjustment Method Considering the Beam Incident Angle for a Multibeam Bathymetric Survey Based on USV Swarms
Published 2025-07-01“…By optimizing the neighborhood radius and minimum sample threshold through analyzing sliding-window curvature, the method achieved the automatic identification of outliers, reducing crossover discrepancies from ±150 m to ±50 m in the deep sea at a depth of approximately 5000 m. …”
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474
Oxidative Desulfurization of Diesel Fuel Using Three Kinds of Carboxylic Acids Supported by Iron(III) Chloride
Published 2021-06-01“…Further, increasing the desulfurization efficiency was also energetically affected in the presence of ferric halide. …”
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475
Learning-Based Multi-Stage Formation Scheduling with a Hybrid Controller
Published 2024-10-01“…Due to the increasing requirements for accuracy and efficiency, as well as for a bridge to link the sensing and control stages, the importance of transmission scheduling is gradually emerging, with the scheduling of limited resources under various constraints to better complete tasks becoming a focus of attention. …”
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476
Research on design, modeling, and maneuverability analysis of hybrid-driven robotic fish
Published 2025-08-01“…Hybrid-driven robotic fish combines the maneuverability of propeller propulsion with the efficiency of biomimetic fin propulsion, offering potential advantages in underwater exploration and robotic applications. …”
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477
Control Research on Active Pitch Control System for Horizontal-Axis Tidal-Current Turbine Generator
Published 2025-02-01“…The technology of blade active pitch control is the key technology to cope with tidal velocity change and improve the stability and efficiency of horizontal-axis tidal generator sets. …”
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478
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479
Low 4.5 μm Dayside Emission Disfavors a Dark Bare-rock Scenario for the Hot Super-Earth TOI-431 b
Published 2025-01-01“…Here, we present Spitzer observations of the 4.5 μ m secondary eclipses of the rocky super-Earth TOI-431 b, whose mass and radius indicate an Earth-like bulk composition (3.07 ± 0.35 M _⊕ , 1.28 ± 0.04 R _⊕ ). …”
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480
A Heterogeneous Silicon on Lithium Niobate Modulator for Ultra-Compact and High-Performance Photonic Integrated Circuits
Published 2021-01-01“…When thickness of LN is 700 nm, the modulation efficiency reaches 1.76 V⋅cm and the bandwidth exceeds 350 GHz. …”
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