Université du Québec à Chicoutimi

Evaluating SAM2 Automatic Mask Generation for Petrographic Thin Sections: Effects of Parameter Tuning

Optical thin-section segmentation remains difficult because petrographic images combine fine textures, strong local variability, and often ambiguous phase boundaries. This study evaluates the effect of automatic mask-generator parameter tuning for a fixed pretrained SAM2 model in...

Right on time: evaluating accuracy and timing of burn-severity assessments to support post-fire management

Abstract Effective wildfire impact assessment and post-fire management rely on burn-severity maps that accurately characterize fire effects on vegetation and soils. These maps inform time-sensitive activities such as post-fire flood and debris-flow modeling, risk mitigation for h...

Xylem anatomical and hydraulic responses to light conditions guide regeneration management in tropical tree species

Light limits juvenile tree performance in tropical forests, yet we still lack anatomical criteria to predict hydraulic function across contrasting light environments. Understanding how xylem structure adjusts is essential for identifying hydraulic traits that indicate species wit...

Relational technology management knowledge: an organizational capability for Industry 4.0 adoption and distributor sustainability development

Purpose Against the backdrop of knowledge-based theory, this study investigates the interplay between critical knowledge components, technology management knowledge and relational knowledge, the adoption of Industry 4.0 technologies and their impact on distributor sustainability...

A Coupled Experimental–Numerical Framework to Characterize Ice Fracture Mechanics for Vibration-Based De-Icing

Resonant-vibration de-icing offers a low-power alternative to electrothermal systems, but its effectiveness depends on ice fracture and ice–substrate interfacial failure under dynamic loading. This study develops a coupled experimental–numerical methodology to characterize ice fr...

The impact of entrepreneurship education on sustainable entrepreneurial intentions: A quasi-experimental study

In this paper, we examine how a semester-long sustainability-oriented entrepreneurship course shapes sustainable entrepreneurial intention (SEI) through individual sustainability orientation (ISO). Grounded in an adaptation of the Theory of Planned Behaviour, ISO is conceptualize...

A Critical Review of Thermo-Mechanical Behaviour of Reinforced 4D-Printed Shape-Memory Polymers

Abstract Additive manufacturing (AM) combined with smart materials has enabled 4D printing of structures capable of programmable, stimulus-driven shape transformation. Among these, particle-reinforced shape-memory polymers (SMPs) have emerged as a key platform for achieving enhan...

Ambient Temperature-Dependent Parameterization of the IEC 60076-7 Top-Oil Thermal Model

Transformer top-oil temperature prediction is essential for reliable thermal assessment and lifetime management. Although the IEC 60076-7 loading guide model is widely adopted for this purpose, its thermal parameters are generally assumed to remain constant regardless of environm...

Carbamate-Bearing Carbohydrates: Natural Occurrence, Pharmacological Relevance, and Chemical Synthesis

Abstract Carbamoylation is a relatively rare but relevant modification in natural carbohydrates, promoting structural diversity. Numerous families of natural glycosides, including aminocoumarins, glycopeptides, or macrolides, contain these carbamoylated carbohydrates. These natur...

A Statistical Thermodynamic Lattice Model for Cu–In Coupled Substitution in Sphalerite

Version 2.0. This version corrects the equilibration argument of Section 4.7. Replica-exchange sampling reaches a state 3.1 eV over the box below anything the version 1 annealing protocol attained, showing that the two-trajectory test reported there was not a sufficient test of e...

Enhancing Channel Robustness in LoRa Radio Frequency Fingerprinting through a Physics-Informed Residual Spectrogram †

Radio Frequency Fingerprinting Identification (RFFI) is a lightweight authentication method at the physical layer for LoRa IoT devices that avoids cryptographic overhead. However, current deep learning pipelines for RFFI face a robustness gap in that their identification accuracy...

Linking Magmatism and Gold Mineralization at the Fenelon Gold Deposit, Northern Abitibi, Canada: Insights from Pyrite Chemistry, U-Pb and Re-Os Geochronology

Abstract The Fenelon gold deposit, located in the underexplored northern region of the Abitibi greenstone belt, hosts an estimated 4.09 Moz at 3.20 g/t Au and is spatially associated with the 2697 ± 0.96 Ma Jeremie diorite (isotope dilution-thermal ionization mass spectrometry [I...

A Statistical Thermodynamic Lattice Model for Cu–In Coupled Substitution in Sphalerite

This record contains the complete reference implementation, the numerical results underlying every figure and table, and the manuscript for a statistical thermodynamic lattice model of copper-indium coupled substitution in sphalerite. Indium in sphalerite is almost invariably acc...