Sandia National Laboratories California

Rare Event Simulation of Quantum Error-Correcting Circuits

We describe a practical approach for accessing the logical failure rates of quantum error-correcting (QEC) circuits under low physical (component) failure rate regimes. Standard Monte Carlo is often the de facto approach for studying the failure rates of quantum circuits. However...

Evaluation of liquid equation of state for deuterium oxide (D2O) and perfluorooctane (C8F18) via tamped Richtmyer–Meshkov instability experiments

Window materials in shock compression experiments maintain shock stresses in samples and enable optical velocimetry measurements of the sample–window interface. Transparent liquids present unique opportunities as negligible-strength window materials that conform to nonuniform sur...

Voxel-Based Simulation and Optimization Framework for Thermal Protection System Materials

When a spacecraft enters a planet’s atmosphere at hypersonic speed, its leading surfaces experience intense aerothermal heating. Porous ablative materials, typically composed of a fiber matrix and resin binder, are commonly used as thermal protection systems (TPS) to shield the v...

The impact of multi-injection events on a compression-ignition engine using ducted fuel injection: A numerical and experimental study

Ducted fuel injection (DFI) is a technology to curtail soot formation from diesel combustion while mitigating its typical trade-off with nitrogen oxides (NOx). Previous studies have demonstrated its potential in both vessel and compression-ignition (CI) engine applications relyin...

Can sustainable aviation fuel use provide substantial health co-benefits to populations around United States airports?

Aviation emissions contribute to air quality deterioration, adversely impacting the health of the population near airports. However, there is a knowledge gap regarding how sustainable aviation fuels (SAF) may mitigate these health impacts. This study introduces a framework to eva...

AI-Assisted Scoring Improves Interobserver Agreement in Breast Cancer Biomarker Evaluation

Background: Immunohistochemical assessment of estrogen receptor (ER), progesterone receptor (PR), proliferation marker Ki67, and human epidermal growth factor receptor 2 (HER2) represents a central component of the diagnostic workflow in invasive breast carcinoma, directly influe...

Full-Field Measurement Uncertainty Quantification for Luminescence Phosphor Thermography on Surfaces in 3D Space

Abstract Background The luminescent intensity ratio (LIR) method of measuring temperature with thermographic phosphors has long been reported to exhibit sensitivities to experimental geometry as a test article moves in 3D space. Objective This work aims to evaluate the sensitivit...

The AWAKEN wind farm benchmark – Part 2: Modeling results

Abstract. Accurately modeling wind farm performance in complex atmospheric flows remains a challenge. This paper presents the modeling results of the American WAKE experimeNt (AWAKEN) wind farm benchmark, a collaborative effort involving 16 research groups from academia and indus...

Ensemble agroecosystem modeling enhances predictions of crop yields and soil carbon across the United States

Abstract. Accurately estimating crop yields and soil organic carbon (SOC) dynamics is essential for agricultural planning, carbon accounting, and sustainable land management. However, process-based agroecosystem models often produce divergent estimates due to variations in model...