Results 31 to 40 of about 533,916 (119)
The Structural Design of Tall and Special Buildings, Volume 35, Issue 2, February 2026.ABSTRACT The present paper deals with the analytical and numerical solution of the motion equation of a single degree of freedom (SDoF) oscillator with damping and negative stiffness (NS) due to seismic excitation at its base. The resulting solution shows that the structure's response displacement increases exponentially; thus, practically, there is no
Nikoleta Chatzikonstantinou +1 more
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Reciprocal Convex Costs for Ratio Matching: Axiomatic Characterization
AxiomsWe study ratio-induced mismatch cost functions of the form c(s,o)=JιS(s)/ιO(o) built from positive scale maps ιS:S→R>0 and ιO:O→R>0 and a penalty J:(0,∞)→[0,∞).
Jonathan Washburn, Amir Rahnamai Barghi
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Vortex Line Density in a Superfluid Turbulent Wake in the Zero Temperature Limit
Annalen der Physik, Volume 538, Issue 1, January 2026.The quasiclassical conjecture for quantum turbulence in a pure superfluid straightforwardly leads to the definition of the superfluid Reynolds number, Res=ud/κ$Re_s=ud/\kappa$, and suggests that the effective quantum viscosity should be of the order of the circulation quantum κ$\kappa$.
Hiromitsu Takeuchi
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Fractal and FractionalThis paper mainly consists of two parts: (i) We study the uniqueness, existence, and stability of a new fractional nonlinear partial integro-differential equation in Rn with three-point conditions and variable coefficients in a Banach space using inverse
Chenkuan Li, Wenyuan Liao
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Advances in Civil Engineering, Volume 2026, Issue 1, 2026.The integration of data‐driven methodologies in bridge health monitoring is gaining increasing attention due to their ability to overcome conventional approaches’ limitations. This study proposes a bridge damage identification method for simply supported bridges, leveraging output‐only vehicle‐induced vibration responses, eliminating the need for ...
Md. Niamul Haque +2 more
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Matrix Representation of Planar Lorentz Transformations in Extended (2 + 2)‐Dimensional Spacetime
Advances in Mathematical Physics, Volume 2026, Issue 1, 2026.A matrix formulation of Lorentz transformations restricted to planar motion is developed within an extended (2 + 2)‐dimensional spacetime framework. Focusing on inertial frames in relative motion confined to the XY‐plane, the analysis begins with radial Lorentz boosts, where the relative velocity is collinear with the spatial position vector.
Chandra Bahadur Khadka +1 more
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The D’Alembert Inevitability Theorem
MathematicsWe study functions satisfying the composition law F(xy)+F(x/y)=P(F(x),F(y)) with a symmetric polynomial combiner P. We prove that symmetry together with a quadratic degree bound on P forces a composition law of d’Alembert type.
Jonathan Washburn +2 more
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Journal of Sensors, Volume 2026, Issue 1, 2026.In response to the demand for rapid and portable measurement of oil density, this article establishes a full‐period vibration model including the transient excitation stage and the free attenuation stage based on the fluid inertia effect and viscous dissipation effect.
Kun Zhang +4 more
wiley +1 more source
, 2013 Elite de poésies fugitives : Quatrain mis sous le buste du Maréchal de Saxe D'Alembert est connu comme savant et encyclopédiste, plus précisément pour ses travaux comme mathématicien (l'équation des ondes, le théorème fondamental de l'algèbre…) comme ...
Irène Passeron
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Uniqueness of the Canonical Reciprocal Cost
MathematicsWe study a rigidity problem for functions F:R>0→R≥0 that penalize deviation of a positive ratio from equilibrium x=1. Assuming (i) a d’Alembert-type composition law on R>0, and (ii) a single quadratic calibration at the identity (in logarithmic ...
Jonathan Washburn, Milan Zlatanović
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