Results 81 to 90 of about 1,693,281 (169)

An effective Bombieri–Vinogradov error term for sifting problems

open access: yesMathematika, Volume 72, Issue 4, October 2026.
Abstract In number theory, many major results related to the additive properties of primes are proven using the methods of sieve theory. However, in nearly every case, the existing proofs of these results are ineffective, in that explicit values for which they hold cannot be computed.
Daniel R. Johnston
wiley   +1 more source

ML‐Accelerated Framework for Fatigue Life‐Timescale Homogenization and Cyclic Damage Evolution Under Physics Constraints

open access: yesInternational Journal for Numerical Methods in Engineering, Volume 127, Issue 17, 15 September 2026.
ABSTRACT Predicting structural lifetime under complex loading remains a major challenge in computational mechanics, especially for high cycle fatigue in large scale systems such as aircraft, bridges, and wind turbines. This difficulty arises from the need to capture fatigue damage accumulation, crack initiation, crack growth across scales, and life ...
Elsayed S. Elsayed   +2 more
wiley   +1 more source

Algebraic discrete causal models [PDF]

open access: yes, 2010
The main feature of the paper is to show that Algebraic Statistics is a natural framework to address issues of causality and to help discern a total cause.
Thwaites, Peter   +2 more
core  

Quantum Master Equation for Electronic Structure in Open Graphene: Non‐Hermitian Hamiltonians and Types of Dissipative Dynamics

open access: yesAnnalen der Physik, Volume 538, Issue 9, September 2026.
Electron transport is studied between carbon atoms in the open graphene, while assuming bands to be collective states of electrons in the presence of lattice atoms. To describe dissipative effects, non‐Hermitian extension of the band Hamiltonian is proposed, which models spontaneous emission or injection.
Konstantin G. Zloshchastiev
wiley   +1 more source

Predicting the Toxicity of Chemical Compounds via Hyperdimensional Computing

open access: yesMolecular Informatics, Volume 45, Issue 9, September 2026.
Hyperdimensional computing converts text representations of chemical structures (SMILES) into high‐dimensional vectors. New compounds are classified by comparison with learned toxic and nontoxic reference patterns; across 12 Tox21 targets, overlapping four‐character SMILES patterns performed best among tested representations, supporting fast ...
Fabio Cumbo   +6 more
wiley   +1 more source

A Semi‐Discrete Lagrangian‐Eulerian Numerical Scheme for Diffusive‐Dispersive Conservation Laws With Discontinuous Coefficient

open access: yesNumerical Methods for Partial Differential Equations, Volume 42, Issue 5, September 2026.
ABSTRACT In this work, we present an extension of the semi‐discrete Lagrangian‐Eulerian numerical scheme for diffusive‐dispersive conservation law problems, including a jump discontinuous flux function. As in the one‐dimensional scalar hyperbolic case, the no‐flow curves also organize the geometry of the method.
Eduardo Abreu   +2 more
wiley   +1 more source

Algebraic causality : Bayes nets and beyond [PDF]

open access: yes, 2007
The relationship between algebraic geometry and the inferential framework of the Bayesian Networks with hidden variables has now been fruitfully explored and exploited by a number of authors.
Riccomagno, Eva, Smith, J. Q.
core  

Learning Differential Equations From Numerically Integrated Artificial Neural Networks

open access: yesProceedings in Applied Mathematics and Mechanics, Volume 26, Issue 3, September 2026.
ABSTRACT For numerical investigation of dynamical systems, the formulation of the corresponding ordinary differential equations (ODE) based on physical principles is usually the first and most crucial step. However, if the underlying physics is not fully understood or the required expert knowledge for modeling is missing, setting up these differential ...
Timo Bielitz, Dieter Bestle
wiley   +1 more source

A Generalization of the Ternary Binding Model to Membrane‐Confined Systems With Finite Copy Number

open access: yesCPT: Pharmacometrics &Systems Pharmacology, Volume 15, Issue 9, September 2026.
ABSTRACT The standard Douglass ternary binding model (TBM) for three‐body equilibria assumes a well‐mixed, three‐dimensional solution. When applied to bispecific T‐cell engagers (BiTEs), however, the productive trimeric complex forms not in bulk solution but within a nanoscale membrane synapse with finite receptor copy numbers.
Hamid Bellout   +3 more
wiley   +1 more source

Dynamic Characteristics Analysis of a Large Wind Turbine Gearbox Supported by Journal Bearings Under Different Lubrication States

open access: yesWind Energy, Volume 29, Issue 9, September 2026.
ABSTRACT Due to their superior load density, planetary gear journal bearings (PGJB) are progressively replacing rolling element bearings in wind turbine gearboxes; therefore, accurately revealing the dynamic characteristics of drivetrains supported by these bearings under variable operating conditions is crucial for ensuring operational reliability ...
Pengcheng Jin   +3 more
wiley   +1 more source

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