Tracking the normal modes of an overpass highway bridge using Distributed Acoustic SensingDistributed Acoustic Sensing (DAS) of ambient vibrations is a promising technique in the context of structural health monitoring of civil engineering structures. The methodology uses Rayleigh…E. Diego Mercerat, Martijn P. A. van den Ende, Anthony Sladen et al.·Oct 28, 2025SaveLearn
An extensive search for stable periodic orbits of the equal-mass zero angular momentum three-body problemA special 2D initial conditions' domain of the equal-mass zero angular momentum planar three-body problem, which has been formerly studied, is analyzed to deepen the knowledge of the stability…Ivan Hristov, Radoslava Hristova, Kiyotaka Tanikawa·Oct 26, 2025SaveLearn
Coulomb force between two Dirac monopolesThe model of magnetic monopoles that was proposed by Paul Dirac in 1931 has long been a subject of theoretical interest in physics because of its potential to explain the quantization of electric…Alberto G. Rojo·Oct 25, 2025SaveLearn
The swinging counterweight trebuchet. On internal frictionMechanical energy is lost to friction during a shot with a trebuchet. The losses are mainly due to sliding friction at the bearings for the throwing arm and at the hinge for the swinging…E Horsdal·Oct 23, 2025SaveLearn
Lattice-induced sound trapping in biperiodic metasurfaces of acoustic resonatorsA referential example of a physical system that supports bound states in the continuum (BICs) with an infinite quality factor (Q factor) is a metasurface of discrete scatterers (resonators), whose…Nikita Ustimenko, Andrey B. Evlyukhin, Vicky Kyrimi et al.·Oct 20, 2025SaveLearn
Hyperelastic constitutive model for rubber-like materials based on the first Seth strain measures invariantThe mechanical behaviour of isotropic and incompressible vulcanized natural rubbers (NR's) and that of quasi-incompressible carbon black filled vulcanized natural rubbers (NR 70) are considered both…H. Bechir, Luc Chevalier, Mohend Chaouche et al.·Oct 20, 2025SaveLearn
Note on Jackson's formalism of gauge transformationAn outline is given of how Jackson may have obtained the inhomogeneous wave equations for the auxiliary functions and V in his influential 2002 AJP paper on the transformation from the…V. Hnizdo·Oct 19, 2025SaveLearn
The nonlinearity of helical springs: An energy-based approachA general expression for the elastic potential energy of a helical spring is derived using the basic concepts of elasticity theory and geometry. Both the translational and the rotational displacement…Saša Ilijić, Ana Babić, Dora Ivrlač et al.·Oct 19, 2025SaveLearn
Enhancement of mechanical properties of high modulus polypropylene grade for multilayer sewage pipes applicationsAdvances in technology have provided fresh generations of stiff polypropylene block copolymers for gravity sewerage applications. The aim of this study is to further enhance the stiffness of these…Helena Khoury Moussa, Georges Challita, Houssem Badreddine et al.·Oct 17, 2025SaveLearn
A Unified Representation and Transformation of Electromagnetic Configurations Based on Generalized Hertz PotentialsWe present a unified framework that fully represents electromagnetic potentials, fields, and sources in vacuum, based on a reinterpretation of the classical Hertz-potential formalism. In this…Ting Yi·Oct 13, 2025SaveLearn
Advanced creep modelling for polymers: A variable-order fractional calculus approachPolymer-based plastics exhibit time-dependent deformation under constant stress, known as creep, which can lead to rupture or static fatigue. A common misconception is that materials under tolerable…José Geraldo Telles Ribeiro, Americo Cunha·Oct 13, 2025SaveLearn
The vector potential of a steady azimuthal current density. Once againWe give an integral expression for the vector potential of a time-independent, steady azimuthal current density. Our derivation is substantially simpler and somewhat more general than others given in…Antonio O. Bouzas·Oct 13, 2025SaveLearn
Modelling Intra-driver Behavioral Adaptation through Risk Sensitivity and Regime Transitions: A Task-difficulty Car-following ModelOver the past decade, there has been a growing trend toward integrating human factors (HF) into traffic flow models to better understand the complexities of human behavior and its impact on traffic…Mohammad Tamim Kashifi·Oct 10, 2025SaveLearn
The Effective Radius of an Electric Point Charge in Nonlinear ElectrodynamicsMotivated by the century-old problem of modeling the electron as a pointlike particle with finite self energy, we develop a new class of nonlinear perturbations of Maxwell's electrodynamics inspired…Tengyang Liu, Yisong Yang·Oct 10, 2025SaveLearn
Comprehensive Numerical Hydrodynamic Analysis of Submarine in a Straight Course Simulation Using Wall-Resolved RANS ModelsThis research explores several critical factors affecting CFD-based prediction accuracy of submarine hydrodynamics and builds upon previous work on preliminary mesh and solver benchmarking. A scaled…Noh Zainal Abidin, Frederic Grondin, Pol Muller et al.·Oct 6, 2025SaveLearn
Assessment of hydrodynamic characteristics and computational resources for submarine resistance analysis: A comparative study between CFD Codes with application of the BB2 SubmarineSubmarines are vital for maritime defense, requiring optimized hydrodynamic performance to minimize resistance. Advancements in Computational Fluid Dynamics (CFD) enable accurate predictions of…Noh Zainal Abidin, Frédéric Grondin, Pol Muller et al.·Oct 6, 2025SaveLearn
Time-Symmetric Action-at-a-Distance Electrodynamics and the Principle of Action and Reaction for Particles at Relative RestWe investigate a theory of time-symmetric action-at-a-distance electrodynamic or gravitational interactions where the four-forces depend only on the electric charges, the rest masses, the position…Calin Galeriu·Oct 5, 2025SaveLearn
Multi-scale friction coefficient: From roughness to system computation using deep learningThe presence of surface defects (roughness, surface imperfections, profiles, etc.) in a contact inevitably leads to the modification of its local properties, such as the coefficient of friction. In…Victor Lalleman, Pierre Gosselet, Cédric Hubert et al.·Oct 2, 2025SaveLearn
Harnessing Oscillatory Dynamics for Reprogrammable Mechanical FunctionalityA long-standing goal in the field of "mechanical computing" is the creation of truly reprogrammable mechanical structures, where the function of each unit can be dynamically defined, modified, and…Sophie Monnery, Giada Risso, Loucas Plado Costante et al.·Sep 30, 2025SaveLearn
Resultant Delta-V Estimation from EDR Data Recorded in Automobiles that have Undergone Impact-Induced Yaw RateThere are several references in the public literature that discuss the effect impact-induced yaw motion has on the measurement of acceleration, vis-\`a-vis accelerometers, in automobile collisions…Micky Marine·Sep 30, 2025SaveLearn
Comment on the "Electric Power Generation from Earth's Rotation through its Own Magnetic Field"The suggestion made by C. F. Chyba and K. P. Hand about electric power generation from Earth's rotation through its own magnetic field is intriguing [1, 2]. Due to the importance of the subject, we…Iver H. Brevik, Moshe M. Chaichian, Mikhail I. Katsnelson·Sep 29, 2025SaveLearn
Exact shape of an ideal heavy spring suspended at both endsIn the present article we determine the exact shape of an ideal spring suspended at both ends. Historically, this goes under the name of Elastica problem. The total energy of the suspended spring is…Cyril Belardinelli·Sep 26, 2025SaveLearn
Extra force in charged resonant capacitors: a new macroscopic effect of vacuum fluctuations ?We report on measurements of the mechanical vibrations of the fundamental mode of resonant capacitive transducers, consisting of parallel plates at different gaps (10 - 26 μm). Resonant frequency…Yury Minenkov, Massimo Bassan·Sep 25, 2025SaveLearn
On the origin of irreversibilityThe contradiction of micro-reversibility and macro-irreversibility is an old problem in statistical mechanics. This article argues that irreversibility is present even at the micro level because of…Tamás Matolcsi·Sep 24, 2025SaveLearn
Causal Finite-Tick Dynamics as a Resolution of the Classical Radiation Reaction ProblemThe radiation-reaction problem in classical electrodynamics has long resisted a consistent solution: the Abraham-Lorentz-Dirac equation admits runaways and pre-acceleration, while the Landau-Lifshitz…Hadi Z. Olyaei·Sep 23, 2025SaveLearn