Results 21 to 30 of about 87 (85)

Topographical Features of the Lunar Surface Unveiled Through Spherical Geodesic Triangulation Analysis Method of DEM Roughness at Equal Spatial Scales

Earth and Space Science, Volume 13, Issue 4, April 2026.
Abstract This study introduces an innovative method using equal spherical geodesic triangulation to uniformly sample the digital elevation model (DEM) of the lunar surface, ensuring an even distribution of elevation data. Utilizing spherical spline fitting, we have proposed new methods for calculating slope angles and aspects. An equilateral triangular
Zhengfeng Zhang, Lei Chen, Huai Zhang, Yaolin Shi   +3 more
wiley   +1 more source

The Social Truth of Schopenhauer's ‘Metaphysics of Pity’: Compassion and Critical Theory

European Journal of Philosophy, Volume 34, Issue 1, Page 79-95, March 2026.
Abstract Taking Horkheimer and Adorno's account of pity in the Dialectic of Enlightenment as my starting point, I show that Schopenhauer's compassion‐based moral theory exemplifies key elements of this account. In particular, this moral theory will be shown to possess a social truth for Horkheimer and Adorno because it is an expression of a wrong ...
David James
wiley   +1 more source

Modified Central Difference Method for Negative Stiffness SDoF System Under Ground Seismic Excitation

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, Triantafyllos Makarios   +1 more
wiley   +1 more source

Reciprocal Convex Costs for Ratio Matching: Axiomatic Characterization

Axioms
We 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
doaj   +1 more source

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
wiley   +1 more source

Applications of Inverse Operators to a Fractional Partial Integro-Differential Equation and Several Well-Known Differential Equations

Fractal and Fractional
This 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
doaj   +1 more source

Data Driven Based Bridge Damage Identification Using a Statistical Approach Utilizing Vehicle‐Induced Acceleration Responses

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, Shohel Rana, Muhammad Tariq Chaudhary   +2 more
wiley   +1 more source

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, Mohammad W. Alomari   +1 more
wiley   +1 more source

The D’Alembert Inevitability Theorem

Mathematics
We 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, Milan Zlatanović, Elshad Allahyarov   +2 more
doaj   +1 more source

Research on a Rapid and Portable Measurement Method of Oil Density Based on Asynchronous Free Resonance

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, Xu Bian, Han Yang, Wolou Zhong, Deepali   +4 more
wiley   +1 more source