Buscador de Tesis y publicaciones académicas

Artículo 2027 Acceso abierto Revisado por pares

Weak Galerkin finite element methods for elliptic interface problems on nonconvex polygonal partitions

Chunmei Wang · Shangyou Zhang

This paper proposes a weak Galerkin (WG) finite element method for elliptic interface problems defined on nonconvex polygonal partitions. The method features a built-in stabilizer and retains a simple, symmetric, and positive definite formulation. An optimal-order error estimate is rigorously derived in the discrete $H...

Numerical Analysis FOS: Mathematics Numerical Analysis (math.NA) mathematics

• Elsevier BV
• English
• DOI: 10.1016/j.cam.2026.118136

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Artículo 2027 Acceso abierto Revisado por pares

Complex structured meat analogues via hybrid extrusion printing by incorporation of oil-containing ionically gelling alginate binders

Laurids Pernice · Luca Dennig · Birgit Hetzer · Eric Gottwald · y 2 más

Over recent decades, consumer demand has driven meat analogue development. While alternatives to minced meat products (e.g. patties and sausages) are widely available, replication of whole-cut meat products remains challenging due to their complex structure and composition including muscle fiber bundles as well as fat-...

agricultural biotechnology agricultural and veterinary sciences

• Elsevier BV
• English
• DOI: 10.1016/j.foodhyd.2026.113280

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Artículo 2027 Acceso abierto Revisado por pares

Physics-Informed neural network approach for surface wave propagation in functionally graded magnetoelastic layered media

null Diksha · null Katyayani · Hriticka Dhiman · Soniya Chaudhary · y 2 más

This paper investigates propagation of SH-waves in a layered composite structure consisting of a pre-stressed functionally graded magnetoelastic orthotropic layer overlying a pre-stressed functionally graded orthotropic half-space under the influence of gravity. The study introduces a physics-informed neural network (P...

Computational Physics FOS: Physical sciences Computational Physics (physics.comp-ph)

• Elsevier BV
• English
• DOI: 10.1016/j.cam.2026.118161

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Artículo 2027 Acceso abierto Revisado por pares

Class-specific branch attention for mitigating gradient interference under class imbalance

Arush Singhal · Umang Soni

Deep neural networks trained under severe class imbalance often exhibit degraded performance, typically attributed to statistical bias. In this work, we identify a complementary optimization-level pathology: inter-class gradient interference within shared representations, where gradients from majority classes suppress...

FOS: Computer and information sciences Artificial Intelligence (cs.AI) Artificial Intelligence engineering and technology

• Elsevier BV
• English
• DOI: 10.1016/j.patcog.2026.114964

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Artículo 2027 Acceso abierto Revisado por pares

Compositional metrology of atom probe applied to non-metallic materials

Enrico Di Russo · François Vurpillot · Lorenzo Rigutti

Laser-assisted Atom Probe Tomography (LA-APT) has demonstrated a unique potential for the study of the 3D distribution of atomic species in semiconductor materials and devices, and in a growing list of inorganic non-metallic solids. A crucial and often underestimated issue with APT is its accuracy in compositional meas...

Materials Science Materials Science (cond-mat.mtrl-sci) FOS: Physical sciences Instrumentation and Detectors (physics.ins-det)

• Elsevier BV
• English
• DOI: 10.1016/j.pmatsci.2026.101779

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Artículo 2027 Acceso abierto Revisado por pares

Subsample averaging for non-periodic microstructures: Bias reduction, dispersion increase, and practical trade-offs in computational micromechanics

Tim Sentler · Peter Bella · Matti Schneider

The computation of effective properties of random microstructured materials via representative volume elements (RVE) is affected by both bias and dispersion. For non-periodic microstructures (snapshots), which naturally arise in experiments and imaging-based studies, the bias decays slowly, rendering standard homogeniz...

Variance reduction Computational micromechanics Stochastic homogenization Representative volume element

• Elsevier BV
• English
• DOI: 10.1016/j.euromechsol.2026.106363

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Artículo 2027 Acceso abierto Revisado por pares

Line-intensity mapping

Tzu-Ching Chang · Adam Lidz

Line-Intensity Mapping (LIM) has emerged as a powerful technique for studying large-scale structure and the high-redshift universe, enabling three-dimensional maps of line emission across vast cosmological volumes. In this review, we summarize the LIM framework, its key scientific goals, and its future prospects. We de...

Cosmology and Nongalactic Astrophysics (astro-ph.CO) physical sciences FOS: Physical sciences Cosmology and Nongalactic Astrophysics

• Elsevier BV
• English
• DOI: 10.1016/j.physrep.2026.09.003

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Artículo 2027 Acceso abierto Revisado por pares

Greenhouse gas emission under a dual-disposability approach: Assessing environmental technical efficiency in the airline industry

Ben Cheikh Larbi, Montacer · Belkhiria, Sina

This study provides a robust analysis of environment-adjusted airline efficiency under a dual-disposability assumption for undesirable output. It employs also a two-stage methodology to investigate the complex and heterogeneous relationships between airline operational profiles and their environmental efficiency.Techni...

GHG Emissions Environmental Efficiency Airline Directional Distance Function

• Elsevier BV
• English
• DOI: 10.1016/j.jairtraman.2026.103128

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Artículo 2027 Acceso abierto Revisado por pares

On the average number of representations of an integer as a sum of polynomials computed at prime values

Migliaccio, Alessandra · Zaccagnini, Alessandro

We study the average number of representations of an integer $n$ as $n = ϕ(n_{1}) + \dots + ϕ(n_{j})$, for polynomials $ϕ\in \mathbb{Z}[n]$ with $\partialϕ= k\ge 1$, $\operatorname{lead}(ϕ) = 1$, $j \ge k$, where $n_{i}$ is a prime power for each $i \in \{1, \dots, j\}$. We extend the results of Languasco and Zaccagnin...

Number Theory FOS: Mathematics Number Theory (math.NT) Primary 11P32. Secondary 11P55, 11P05

• Elsevier BV
• English
• DOI: 10.1016/j.jnt.2026.06.012

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Artículo 2027 Acceso abierto Revisado por pares

Health Utility and Validity of the EQ-5D-5L in Thai Patients With Pemphigus and Bullous Pemphigoid

Arisara, Luangsukrerk · Pinnaree, Kattipathanapong · Phantipa, Sakthong

To estimate health utility using the EuroQol 5-Dimension 5-Level instrument (EQ-5D-5L) and to evaluate its validity, including convergent and known-group validity, in patients with pemphigus and bullous pemphigoid.A cross-sectional study was conducted among adults with pemphigus or bullous pemphigoid receiving outpatie...

• Elsevier BV
• English
• DOI: 10.1016/j.vhri.2026.101667

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