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Physics Preprint PDF DOI

Quantifying Thermal, Photovoltage, and Defect Contributions to Transient Absorption of Ta$_{3}$N$_{5}$ Photoanodes

Johannes Dittloff, Lukas M. Wolz, Matthias U. Quintern, Laura I. Wagner, Matthias Kuhl, Johanna Eichhorn, Ian D. Sharp · 2026

Ta$_{3}$N$_{5}$ is among the most intensively studied photoanode materials for solar-driven water oxidation, yet its performance often remains limited by short carrier lifetimes and defect mediated re…

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Physics Preprint PDF DOI

TBA equations for $SU(r+1)$ quantum Seiberg-Witten curve: higher-order Mathieu equation

Feiyu Peng, Hongfei Shu · 2026

We develop the ODE/IM correspondence for the higher-order Mathieu equation arising from the quantum Seiberg-Witten curve of the pure $SU(r+1)$ ${\cal N}=2$ supersymmetric Yang-Mills theory. From the s…

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AI & Data Science Preprint PDF DOI

The TEA Nets framework combines AI and cognitive network science to model targets, events and actors in text

Sebastiano Franchini, Alexis Carrillo, Edoardo Sebastiano De Duro, Riccardo Improta, Ali Aghazadeh Ardebili, Massimo Stella · 2026

We introduce Target-Event-Agent Networks (TEA Nets) as a computational framework to extract subjects (``Agents"), verbs (``Events"), and objects (``Targets") from texts. Grounded in cognitive network …

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AI & Data Science Preprint PDF DOI

PI-TTA: Physics-Informed Source-Free Test-Time Adaptation for Robust Human Activity Recognition on Mobile Devices

Changyu Li, Lu Wang, Ming Lei, Jiashen Liu, Yichen Zhang, Kaishun Wu, Fei Luo · 2026

Source-free test-time adaptation (TTA) is appealing for mobile and wearable sensing because it enables on-device personalization from unlabeled test streams without centralizing private data. However,…

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Medicine & Health Preprint PDF DOI

Fingertip Micro-Motion as a Source of Respiratory Information During Sleep Using Triaxial Accelerometers

Jeanne Lin, Lily Liu, Hau-Tieng Wu · 2026

Objective: Triaxial accelerometers (TAAs) are widely used in homecare medicine. This study investigates whether TAA signals recorded at the fingertip encode respiratory information, particularly insta…

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Physics Preprint PDF DOI

Uncovering long-lived relaxation channel and exciton-phonon coupling in \textrm{Ta\textsubscript{2}NiSe\textsubscript{5}} via non-degenerate pump-probe spectroscopy

Poulami Ghosh, Anupama Chauhan, Sidhanta Sahu, Sk Kalimuddin, Mintu Mondal, N. Kamaraju · 2026

An excitonic insulator represents a quantum phase in which spontaneous condensation of excitons leads to novel many-body phenomena. Ta$_2$NSi$_5$ (TNSe), a layered narrow-gap semiconductor, has emerge…

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Physics Preprint PDF DOI

Lagrangian Proper Orthogonal Decomposition

Ron Shnapp, Stefano Brizzolara · 2026

We introduce a modal representation for Lagrangian trajectories in turbulence, termed Lagrangian Proper Orthogonal Decomposition (LPOD). An ensemble of particle trajectories is used to construct veloc…

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Physics Preprint PDF DOI

Gyrokinetic simulations on zonal flow-turbulence spreading coupling

Min Ki Jung, Sumin Yi, Taik Soo Hahm, Yong-Su Na · 2026

Zonal flows and turbulence spreading play important roles in magnetic fusion plasma confinement, yet their coupling mechanisms remain elusive. Using global nonlinear gyrokinetic simulations, we show t…

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Physics Preprint PDF DOI

Quantum $f$-divergences via Nussbaum-Szko{\l}a Distributions in Semifinite von Neumann Algebras

Theodoros Anastasiadis, George Androulakis · 2026

In this article, we prove that the quantum $f$-divergence between two normal states on a semifinite von~Neumann algebra is equal to the classical $f$-divergence between two corresponding classical sta…

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Engineering Preprint PDF DOI

AeroBridge-TTA: Test-Time Adaptive Language-Conditioned Control for UAVs

Lingxue Lyu · 2026

Language-guided unmanned aerial vehicles (UAVs) often fail not from bad reasoning or perception, but from execution mismatch: the gap between a planned trajectory and the controller's ability to tra…

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Physics Preprint PDF DOI

Kernel-Preserving Dynamics and Symmetry Classification for Synchronization Subspaces

Nicholas R. Allgood · 2026

We study the preservation and stability of synchronization subspaces in tensor products of finite-dimensional Hilbert spaces. Given self-adjoint operators $T_A$ and $T_B$ on local subsystems, the sync…

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AI & Data Science Preprint PDF DOI

SLO-Guard: Crash-Aware, Budget-Consistent Autotuning for SLO-Constrained LLM Serving

Christian Lysenst{o}en · 2026

Serving large language models under latency service-level objectives (SLOs) is a configuration-heavy systems problem with an unusually failure-prone search space: many plausible configurations crash o…

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Computer Science Preprint PDF DOI

Data Engineering Patterns for Cross-System Reconciliation in Regulated Enterprises: Architecture, Anomaly Detection, and Governance

Zhijun Qiu · 2026

Regulated enterprises in the United States -- banks, telecommunications providers, large technology companies -- operate across heterogeneous systems that were rarely designed to interoperate. ERP pla…

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Computer Science Preprint PDF DOI

COBALT-TLA: A Neuro-Symbolic Verification Loop for Cross-Chain Bridge Vulnerability Discovery

Dominik Blain · 2026

We present COBALT-TLA, a neuro-symbolic verification loop that pairs an LLM with TLC, the TLA+ model checker, in an automated REPL. The LLM generates bounded TLA+ specifications; TLC acts as a semanti…

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AI & Data Science Preprint PDF DOI

YUV20K: A Complexity-Driven Benchmark and Trajectory-Aware Alignment Model for Video Camouflaged Object Detection

Yiyu Liu, Shuo Ye, Chao Hao, Zitong Yu · 2026

Video Camouflaged Object Detection (VCOD) is currently constrained by the scarcity of challenging benchmarks and the limited robustness of models against erratic motion dynamics. Existing methods ofte…

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Physics Preprint PDF DOI

Phase Equilibria of the Al-Ti-Nb-Zr-Ta System

Jiri Kozlik, Frantisek Lukac, Mariano Casas-Luna, Jozef Vesely, Eliska Jaca, Katerina Fickova, Stanislav Sasek, Kristina Bartha, Adam Strnad, Tomas Chraska, Josef Strasky · 2026

Phase equilibria in the Al-Ti-Nb-Zr-Ta refractory complex concentrated alloy system were investigated using a high throughput experimental approach. A pseudo-ternary section of the quinary composition…

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Mathematics Preprint PDF DOI

Weighted and unweighted regularity of bilinear pseudo-differential operators with symbols in general H\"{o}rmander classes

Guangqing Wang · 2026

This paper investigates the boundedness of bilinear pseudo-differential operators with symbols in the H\"{o}rmander class $BS_{\varrho,\delta}^m(\mathbb{R}^n)$ in the previously unexplored regime $0 \…

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Physics Preprint PDF DOI

Grain Growth Kinetics in (Cr,Mo,Ta,V,W)C1-{\delta} High-Entropy Carbide Ceramics

Ali Sarikhani, Gregory E. Hilmas, David W. Lipke, Douglas E. Wolfe, Stefano Curtarolo, Shen J. Dillon, Ahmad Mirzaei, William G. Fahrenholtz · 2026

Understanding grain-boundary mobility during spark plasma sintering can enable microstructure control in high-entropy carbides, yet quantitative grain-growth kinetics remain scarce. In this work, grai…

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AI & Data Science Preprint PDF DOI

TeaLeafVision: An Explainable and Robust Deep Learning Framework for Tea Leaf Disease Classification

Rafi Ahamed, Sidratul Moon Nafsin, Md Abir Rahman, Tasnia Tarannum Roza, Munaia Jannat Easha, Abu Raihan · 2026

As the worlds second most consumed beverage after water, tea is not just a cultural staple but a global economic force of profound scale and influence. More than a mere drink, it represents a quiet ne…

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AI & Data Science Preprint PDF DOI

I Can't Believe TTA Is Not Better: When Test-Time Augmentation Hurts Medical Image Classification

Daniel Nobrega Medeiros · 2026

Test-time augmentation (TTA)--aggregating predictions over multiple augmented copies of a test input--is widely assumed to improve classification accuracy, particularly in medical imaging where it is …

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