Buscador de Tesis y publicaciones académicas

Artículo 2027 Acceso abierto Revisado por pares

Towards grid-aware multi-period flexibility aggregation — A constrained zonotope approach

Maurice Raetsch · Maísa Beraldo Bandeira · Christian Rehtanz · Alexander Engelmann · y 1 más

Aggregation schemes provide a means to reduce the computational complexity of power system operation by reducing the number of devices that are considered individually. This can be achieved with tools of computational geometry, where the feasible set is projected onto the decision variables of the point of interconnect...

Optimization and Control (math.OC) Optimization and Control FOS: Mathematics engineering and technology

• Elsevier BV
• English
• DOI: 10.1016/j.epsr.2026.113753

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Artículo 2027 Acceso abierto Revisado por pares

Ultrasound-activated piezoelectric muscle constructs for tissue-engineered regenerative peripheral nerve interfaces

Lorenzo Vannozzi · Juliana Redondo · Diego Trucco · Carlotta Pucci · y 10 más

Regenerative peripheral nerve interfaces (RPNIs) are emerging platforms capable to translate neural activity into controllable myoelectric signals. However, current clinical RPNIs rely on muscle autografts, limiting their scalability and extensive adoption. Here, we report a bioactive, ultrasound-responsive piezoelectr...

• Elsevier BV
• English
• DOI: 10.1016/j.bioactmat.2026.08.053

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Artículo 2027 Acceso abierto Revisado por pares

On definably compact semigroups in o-minimal structures

Eduardo Magalhães

In this paper, we study definably compact semigroups in o-minimal structures, aiming to extend the theory of definable groups to a broader algebraic setting. We show that any definably compact semigroup contains idempotents and admits a unique minimal ideal as well as minimal left and right ideals, all of which are def...

Logic 03C64, 20M99, 22A15 FOS: Mathematics mathematics

• Elsevier BV
• English
• DOI: 10.1016/j.apal.2026.103838

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Artículo 2027 Acceso abierto Revisado por pares

Quantifying the impact of grain size distribution models on ultrasonic attenuation in polycrystals

Sheng, Ningyue · Khazaie, Shahram

The volumetric grain size distribution (GSD) plays an important role in the mechanical response of polycrystalline materials and is often assumed to be lognormal in ultrasonic studies, although gamma-and Gaussian-type distributions have also been reported. However, the influence of GSD type on elastic-wave scattering i...

Polycrystal Ultrasonic attenuation Distribution type Two-point correlation function

• Elsevier BV
• English
• DOI: 10.1016/j.ultras.2026.108315

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Artículo 2027 Acceso abierto Revisado por pares

DeferredSeg: A multi-expert deferral framework for medical image segmentation

Qiuyu Tian · Haoliang Sun · Yunshan Wang · Yinghuan Shi · y 1 más

Segmentation models based on deep neural networks demonstrate strong generalization for medical image segmentation. However, they often exhibit overconfidence or underconfidence, leading to unreliable confidence scores for segmentation masks, especially in ambiguous regions. This undermines the trustworthiness required...

FOS: Computer and information sciences Computer Vision and Pattern Recognition (cs.CV) engineering and technology Computer Vision and Pattern Recognition

• Elsevier BV
• English
• DOI: 10.1016/j.patcog.2026.114811

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Artículo 2027 Acceso abierto Revisado por pares

Spectral extremal graphs for F6-free graphs with even size

Yu, Loujun · Peng, Yuejian

Let $F_l$ be the fan graph obtained by joining a vertex with a path on $l-1$ vertices. Yu, Li and Peng [Discrete Math. 346 (2023)] conjectured that if the number of edges of $G$ is $m$ and the spectral radius $λ(G)>\frac{k-1+\sqrt{4m-k^2+1}}{2}$, then $G$ contains a $F_{2k+1}$ and $F_{2k+2}$, unless $G=K_{k}\vee (\frac...

Combinatorics FOS: Mathematics computer and information sciences Combinatorics (math.CO)

• Elsevier BV
• English
• DOI: 10.1016/j.disc.2026.115446

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Artículo 2027 Acceso abierto Revisado por pares

Conditional diffusion model for probabilistic disaggregation of PV systems and heat pumps

Marc Jené-Vinuesa · Hussain Kazmi · Mònica Aragüés-Peñalba · Andreas Sumper

Behind-the-meter (BTM) distributed energy resources and flexible electrified loads, such as photovoltaic (PV) systems and heat pumps (HPs), are expanding rapidly, thereby increasing the complexity and uncertainty of the distribution grid. This paper proposes a probabilistic methodology to disaggregate BTM energy compon...

Heat pumps Photovoltaics Disaggregation Conditional diffusion model

• Elsevier BV
• Spain
• English
• DOI: 10.1016/j.epsr.2026.113796

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Artículo 2027 Acceso abierto Revisado por pares

Dagger categories of orthosets and the complex Hilbert spaces

Jan Paseka · Thomas Vetterlein

An orthoset is a non-empty set $X$ together with a symmetric binary relation $\perp$ and a constant $0$ such that $x \not\perp x$ for any $x \neq 0$, and $0 \perp x$ for any $x$. Maps $f \colon X \to Y$ and $g \colon Y \to X$ between orthosets are said to form an adjoint pair if, for any $x \in X$ and $y \in Y$, $f(x)...

Rings and Algebras Rings and Algebras (math.RA) FOS: Mathematics mathematics

• Elsevier BV
• English
• DOI: 10.1016/j.jmaa.2026.131050

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Artículo 2027 Acceso abierto Revisado por pares

A triple-immunohistochemistry protocol for axonal characterization and quantification in human nervous tissue

Elisabeth M. Mandler · Zehra Düzgün · Lena Hirtler · Giorgi Didava · y 3 más

Precise characterization of axonal subtypes within human nervous tissue is essential for studies of nerve composition, injury, regeneration, and clinical applications. However, the composition and spatial distribution of axonal populations within human nerves remain incompletely characterized. Most immunohistochemical...

• Elsevier BV
• English
• DOI: 10.1016/j.tice.2026.103936

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Artículo 2027 Acceso abierto Revisado por pares

Large language models and evolutionary computation: A critical review of bidirectional interaction, automated algorithm design, and co-adaptive systems

Chauhan, Dikshit · Dutta, Bapi · Bala, Indu · van Stein, Niki · y 2 más

Large Language Models (LLMs) and Evolutionary Computation (EC) are increasingly being combined to support automated optimization, algorithm design, and adaptive decision-making. This survey reviews the bidirectional interaction between these two paradigms and examines how their complementary strengths can be leveraged...

FOS: Computer and information sciences Neural and Evolutionary Computing engineering and technology Neural and Evolutionary Computing (cs.NE)

• Elsevier BV
• English
• DOI: 10.1016/j.cosrev.2026.101050

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