Tootfinder

Material combination optimization for brazed ceramic-metal composites using Artificial Intelligence
Sunita Khod, Vinay Kamma, Ravi Kumar Verma, Mayank Goswami
https://arxiv.org/abs/2510.10128

Material combination optimization for brazed ceramic-metal composites using Artificial Intelligence
This study proposes an Artificial Intelligence (AI) driven methodology for predicting a combination of brazed ceramic-metal composite materials. Multiple machine learning (ML) algorithms are compared with the deep learning (DL) model. The developed models are tested using k-fold validation. Nine different input-output feature configurations are evaluated to assess the model performance. The input-output feature comprises material properties, namely, the coefficient of thermal expansion (CTE) an…

Multihyperuniform Particle Composites Inspired by Avian Photoreceptor Patterns for Optical Applications
David Keeney, Wenlong Shi, Rohit Thomas, Yang Jiao
https://arxiv.org/abs/2510.06402

Multihyperuniform Particle Composites Inspired by Avian Photoreceptor Patterns for Optical Applications
Hyperuniform materials, characterized by anomalously suppressed long-wavelength density fluctuations, exhibit unique optical and photonic properties distinct from both crystalline and random media. While most prior studies have focused on single-species systems, we investigate the broader class of \textit{multihyperuniform} systems inspired by biological photoreceptor mosaics. Using particle-based models with varying species number, size ratios, and interaction competition, we demonstrate that …

There have been numerous disgustingly fake 'nightscape' composites flooding the web where someone had merely pasted a deep astronomical image of comet C/2026 A6 #Lemmon into some landscape, making it look like it was a giant rivalling Ikeya-Seki oder West - oh, how I hated that. And what a relief that NOIRLab has now posted - https://noirlab.edu/public/images/iotw2549a/ - this beautiful and apparently unmanipulated picture of Lemmon over Mauna Kea on 12 November. Yes, it reached 3 point something mag. and had nice tails in the end but it was not a great comet by any means: just look how small and faint it appears next to the southern Milky Way!

Topological Structure of Infrared QCD
J. Gamboa
https://arxiv.org/abs/2511.07455 https://arxiv.org/pdf/2511.07455 https://arxiv.org/html/2511.07455
arXiv:2511.07455v1 Announce Type: new
Abstract: We investigate the infrared structure of QCD within the adiabatic approximation, where soft gluon configurations evolve slowly compared to the fermionic modes. In this formulation, the functional space of gauge connections replaces spacetime as the natural arena for the theory, and the long-distance behavior is encoded in quantized Berry phases associated with the infrared clouds. Our results suggest that the infrared sector of QCD exhibits features reminiscent of a \emph{topological phase}, similar to those encountered in condensed-matter systems, where topological protection replaces dynamical confinement at low energies. In this geometric framework, color-neutral composites such as quark--gluon and gluon--gluon clouds arise as topological bound states described by functional holonomies. Illustrative applications to hadronic excitations are discussed within this approach, including mesonic and baryonic examples. This perspective provides a unified picture of infrared dressing and topological quantization, establishing a natural bridge between non-Abelian gauge theory, adiabatic Berry phases, and the topology of the space of gauge configurations.
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C2AL: Cohort-Contrastive Auxiliary Learning for Large-scale Recommendation Systems
Mertcan Cokbas, Ziteng Liu, Zeyi Tao, Chengkai Zhang, Elder Veliz, Qin Huang, Ellie Wen, Huayu Li, Qiang Jin, Murat Duman, Benjamin Au, Guy Lebanon, Sagar Chordia
https://arxiv.org/abs/2510.02215

C2AL: Cohort-Contrastive Auxiliary Learning for Large-scale Recommendation Systems
Training large-scale recommendation models under a single global objective implicitly assumes homogeneity across user populations. However, real-world data are composites of heterogeneous cohorts with distinct conditional distributions. As models increase in scale and complexity and as more data is used for training, they become dominated by central distribution patterns, neglecting head and tail regions. This imbalance limits the model's learning ability and can result in inactive attention we…

Characterizing failure morphologies in fiber-reinforced composites via k-means clustering based multiscale framework
Harpreet Singh
https://arxiv.org/abs/2509.20011 https://

Characterizing failure morphologies in fiber-reinforced composites via k-means clustering based multiscale framework
A novel homogenization methodology is proposed for analyzing the failure of fiber-reinforced composite materials, utilizing elastic and eigen influence tensors within a damage informed transformation field analysis (D-TFA) framework. This approach includes a technique for calculating macroscopic damage under uniform stress and strain conditions, offering more realistic simulations. Computational efficiency is enhanced through a reduced-order modeling strategy, while elastic and eigen strain dis…

Room-temperature superconductivity in ultra-thin carbon nanotube zeolite composites: a conventional or unconventional superconductor?
Chi Ho Wong, Rolf Lortz
https://arxiv.org/abs/2509.21120

Room-temperature superconductivity in ultra-thin carbon nanotube zeolite composites: a conventional or unconventional superconductor?
The recent report of signs of room-temperature superconductivity in ultrathin single-walled carbon nanotubes (CNT) of types (2,1) and (3,0) holds significant promise for energy applications due to their ability to conduct current without dissipation. However, the McMillan Tc formula fails to calculate their superconducting transition temperatures (Tc) accurately, which raises an important question: what is the pairing mechanism driving their room-temperature superconductivity? To explore this f…

Electro-mechanical wrinkling of soft dielectric films bonded to hyperelastic substrates
Bin Wu, Linghao Kong, Weiqiu Chen, Davide Riccobelli, Michel Destrade
https://arxiv.org/abs/2509.21488

Electro-mechanical wrinkling of soft dielectric films bonded to hyperelastic substrates
Active control of wrinkling in soft film-substrate composites using electric fields is a critical challenge in tunable material systems. Here, we investigate the electro-mechanical instability of a soft dielectric film bonded to a hyperelastic substrate, revealing the fundamental mechanisms that enable on-demand surface patterning. For the linearized stability analysis, we use the Stroh formalism and the surface impedance method to obtain exact and sixth-order approximate bifurcation equation…

E$^2$-TFA based multiscale analysis of failure in elasto-plastic composites
Harpreet Singh
https://arxiv.org/abs/2509.16211 https://arxiv.org/pdf/2509.1621…

E$^2$-TFA based multiscale analysis of failure in elasto-plastic composites
This paper describes a novel homogenization methodology for analyzing the failure of elastoplastic composite materials based on elastic and eigen influence tensors-driven transformation field analysis ($\mathtt{E}^2$-TFA). The proposed technique considers the microscopic eigenstrain field accounting for intra-phase damage and inelastic strains. This results in realistic computations by alleviating the post-damage stiffness response, which is a drawback of TFA-based methods. We attain computatio…

Off Critical Zeros Contradict Contraction in the Dynamical Reformulation of the Riemann Hypothesis
Hendrik Wladimir Albrecht Edwin Kuipers
https://arxiv.org/abs/2509.16240 https…

Off Critical Zeros Contradict Contraction in the Dynamical Reformulation of the Riemann Hypothesis
We continue the dynamical reformulation of the Riemann Hypothesis initiated in [1]. The framework is built from an integer map in which composites advance by pi(m) and primes retreat by their prime gap, producing trajectories whose contraction properties encode the distribution of primes. In this setting, RH is equivalent to the persistence of contraction inequalities for trajectory-based error functionals E(X), E~(X) across multiplicative scales. In the present paper we prove that if zeta(s)…