Colorado School of Mines

Propagating meteorological uncertainty in physically based mountain snow modeling

Abstract. Snow estimation in mountainous regions is uncertain because meteorology varies with topography, in situ observations are sparse and biased, and snow models have structural and scale limitations. Probabilistic methods are increasingly recognized as essential for quantify...

Time-of-Flight Secondary Ion Mass Spectrometry for Characterization of Ir-Based Catalysts for PEM Water Electrolyzers

Abstract Iridium-based catalysts remain essential for enabling durable oxygen evolution in proton-exchange membrane water electrolyzers (PEMWEs), yet their surface and subsurface chemistries remain insufficiently resolved by conventional characterization methods. Here, we establi...

A Complex‐Frequency Framework for Kerker Unidirectionality in Photonic Resonators

ABSTRACT Electromagnetic scattering exhibits various anomalous behaviors, such as forward or backward scattering effects known as the Kerker conditions. These anomalies appear in non‐Hermitian photonic resonators and are mathematically described by operators with complex eigenfre...

Role of crystal chemistry in twinning-based superelasticity in rare-earth orthophosphate ceramics

Materials that dampen vibrations while maintaining mechanical integrity are essential for enhancing the performance and lifetime of engineering components. Recently, some monazite rare earth orthophosphates (REPO4s) have been shown to dissipate mechanical energy superelastically...

Infrastructure as Inherited Knowledge: Artificial Intelligence and the Governance of Long‐Life Infrastructure

ABSTRACT Epistemic orphaning, responsibility drift, loss of institutional memory, and non‐stationarity are not new problems in infrastructure governance—they have accompanied long‐life infrastructure throughout its history. What artificial intelligence changes is not the existenc...

Numerical Modelling Analysis of Borehole Electromagnetic Methods for Imaging Serpentinized Zones During Stimulated Geological Hydrogen Production

ABSTRACT The exploration and stimulation of geological hydrogen within ultramafic rocks represent an emerging frontier in energy resources. Stimulating hydrogen production involves injecting water and catalysts to accelerate serpentinization, a mineral alteration process that sig...

Design methodology for phase change material heat exchangers in heat pump water heaters to improve thermal capacity

Water heating represents a significant component of household energy consumption in the U.S., but high-efficiency heat pump water heaters (HPWHs) provide energy-saving opportunities. However, adoption of this technology is hindered in space-constrained housing (e.g., multifamily...

Cryostress in Frozen Soil. I: Concept, Definition, and Validation

Abstract The concept of cryostress in soil is conceptualized, defined, and validated. Force and water potential equilibrium principles at the scale of a soil–water representative elementary volume (REV) are employed to distinguish three types of forces: (1) skeleton forces transm...

Cryostress in Frozen Soil. II: Closed-Form Equation for Effective Stress in Saturated Frozen Soil

Abstract Recently, cryostress has been conceptualized as part of effective stress to describe the shear strength of soil under frozen conditions. Cryostress is defined as the interparticle stress due to the formation of ice grain and is a characteristic function of temperature. T...

Toward the Development of Online Spiritual Care Communities: A Large-Scale Survey of Spiritual Care Stakeholders to Establish Initial Design Directions, Acceptability, and Feasibility

Spiritual care in the U.S. remains critically underprovided, despite increasing demand and a need for more whole person-centered care in healthcare. Telechaplaincy has emerged as one response, and recent CSCW work has begun to explore spiritual support online, yet there is limite...

The value of lunar-derived oxygen and water for an early habitation customer

Establishing a sustained human presence on the lunar surface will require reliable and cost-effective access to life support consumables, particularly oxygen and water. While in-situ resource utilization (ISRU) has historically been evaluated for large-scale propellant production...

Unraveling the PFAS Helix: A Statistical Approach

Abstract The extreme persistence of per- and polyfluoroalkyl substances (PFAS) in the environment is rooted in their three-dimensional molecular conformation. The helical twist adopted by perfluoroalkyl chains due to hyperconjugation involving their recalcitrant C–F bonds governs...

Tuning of Aromatic Amine Polymer Side chains for Application as Hole Transport Materials in Wide-Bandgap Perovskite Solar Cells

Abstract Perovskite solar cells (PSCs) hold strong potential for efficient and cost-effective photovoltaic technology, yet their device performance and stability remain hindered by interfacial limitations. In particular, the hole transport material (HTM) that contacts both the pe...

National-Scale Flood Susceptibility Mapping of Nigeria Using Statistical and Machine Learning Models with Satellite-Driven Validation for Data-Sparse Environments

Flooding is the most recurrent and economically devastating natural hazard in Nigeria, yet no standard or consistent nationwide assessment method exists. Spatially explicit flood susceptibility information also remains scarce, particularly given limited hydrometric monitoring. Th...

Ten rules to increase the usability of earth observation mission datasets

Abstract Publicly-funded Earth Observation (EO) missions present unprecedented challenges and opportunities for observing our changing planet and applying the knowledge gained to benefit society. As EO mission data continue to grow in volume and complexity, a paradigm shift in ho...

A quantitative framework for ultrafast ptychography through digital twin control of extreme-ultraviolet beams

Ptychography is a powerful imaging method that has transformed microscopy at large-scale and laboratory facilities. Its combination with extreme-ultraviolet light has enabled tabletop microscopes that visualize nanoscale dynamics and characterize ultrafast pulses. However, the pe...

Co-Designing Modular Training to Upskill Auto Technicians for Emerging EV Repair and Maintenance Challenges

Electric vehicles (EVs) are increasingly entering dealership service departments and independent repair shops, but training pathways for current automotive technicians have not expanded at the same pace. EV repair and maintenance require additional skills and knowledge related to...

Disorder‐Broadened Topological Hall Phase and Anomalous Hall Scaling in FeGe

ABSTRACT Magnetic skyrmions are promising candidates for next‐generation spintronic memory and logic due to their nanoscale size and topological stability. However, skyrmion‐based devices remain limited by narrow operating temperature windows that typically exclude cryogenic regi...

Evaluating Generative AI as a Human Factors Requirements-Based Review System of Spaceflight Ground Displays

Control displays provide monitoring, control, and commanding capabilities during prelaunch and launch countdown operations. These displays are evaluated against a set of design standards during development. Generative artificial intelligence systems offer an alternative to human-...

Task Offloading with Temporal Awareness in Heterogeneous Cloud–Edge–Ground Systems

In post-disaster or infrastructure-limited remote-area environments where local terrestrial networking infrastructure is unavailable or severely degraded, heterogeneous cloud–edge–ground (CEG) systems provide a viable platform for computation offloading. Ground devices such as Io...