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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Mixing-Controlled Compression Ignition Combustion with Low-Lifecycle-CO 2 Fuels
Reducing lifecycle carbon-dioxide (CO 2 ) and toxic emissions via electrification or switching to carbon-free fuels is not currently feasible for many off-road, rail, and marine applications. This is due to factors including excessive cost, weight, or size of a battery of sufficient capacity to meet the application requirements, lack of infrastructure, insufficient time for recharging, demanding duty cycles, and severe ambient conditions. The guiding vision for the activities described herein is to enable rapid, cost-effective reductions of the environmental impacts of such applications by using improved, high efficiency engine combustion strategies with currently available and emerging low lifecycle-CO 2 fuels (LLCFs). This report summarizes progress toward achieving this vision in two project areas. The first is a Technology Commercialization Fund (TCF) project focused on facilitating the commercialization of ducted fuel injection (DFI) with LLCFs. The second is a more fundamental, Advanced Combustion Engines (ACE) research project focused on elucidating a new strategy called lean mixing-controlled combustion (LMCC) for use with emerging LLCFs.
Update on multi-megabar shockless compression at Sandia’s Z machine (2024)
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Vaporization of ejecta in dynamic compression experiments
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Structure Optimization and Compression Methods for Finite Element Operators
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Thermal Transport and Mechanical Stress Mapping of a Compression Bonded GaN/Diamond Interface for Vertical Power Devices
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Modeling Heat Flow Across a Compression Bonded GaN-Diamond Interface for Vertical Power Devices
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Large Backup Generation Utilizing Sparse Differential Compression
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Approximate Domain Decomposition Preconditioners with Compression
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Dynamic cyclic loading-unloading response of am pmdi compression pads
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Characterization of point-source transient events with a rolling-shutter compressed-sensing system (presentation)
Slides of presentation I'll be giving at SPIE'24: Optics and Photonics.
Anomaly Detection in Video Using Compression
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Learning a Reliable Compression of In-situ, High-speed Camera Data for Additive Manufacturing
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Randomized Linear and Compressed Gate Set Tomography
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Laser-irradiated X-ray sources for X-ray diffraction of dynamically compressed matter on Sandia's Z-Machine
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Lattice variations of direct ink write compression pads show consistent mechanical property correlations
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Shock-ramp compression of MgO up to 390 GPa on Sandia's Z Machine
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STZ: A High Quality and High Speed Streaming Lossy Compression Framework for Scientific Data
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