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Earlier sources: Energy
Energy research and engineering concern how power is produced, stored, delivered, and consumed. Follow solar and nuclear power, fusion, geothermal systems, batteries, electricity grids, and changing power demand.
SYMTRI organizes observations from public sources into a living map. Connections reflect shared subject matter; they do not establish causation or endorse a source.
Open in the map ↗666 classified signals in the fourteen-day window. Recent momentum: steady. These counts include signals awaiting readable evidence.
Earlier sources
Up to ten sources with readable evidence, ordered by their feed timestamp. These archive sources can be older than the live fourteen-day window. This list is a sample, not a measure of total activity. Dates distinguish paper publication, repository creation, model/dataset activity, Hacker News posts, and KEV catalog additions. “First archived” records when SYMTRI first stored the signal.
- OpenAlex · Published · First archived
Structure–Property Relationships and Energy Absorption of FFF-Manufactured PETG Honeycomb-Type Structures for Automotive Applications ↗
This study explores the quasi-static and dynamic responses of irregular, honeycomb-like topologies made from glycol polyethylene terephthalate (PETG) with various sparse infill densities, using fused filament fabrication (FFF) manufacturing technology. Both tensile and flexural tests revealed a linear increase in Young’s modulus and sample strength as infill density increased, under constant printing and testing conditions. Below 50% infill, this trend remained unchanged, despite cells being irregular and fracture mechanics differing. Low-velocity impact tests were conducted at a velocity of 1…
- OpenAlex · Published · First archived
Interpretable physics-guided neural networks for state of health estimation of lithium-ion battery ↗
Accurate prediction of lithium-ion battery state of health (SOH) is essential for safe and reliable operation. Although model-based and data-driven methods have achieved significant progress, their lack of decision transparency leads to limited reliability and poor interpretability in industrial applications. To address this key challenge, we propose a novel SOH estimation method based on a Physics-Guided Kolmogorov-Arnold Network (PGKAN). This dual-module coevolutionary architecture integrates an SOH Estimator (SOHE) and a Degradation Mechanism Surrogate (DMS) to co-evolve SOH estimation and…
- OpenAlex · Published · First archived
Elevated synaptic vesicle fusion with impaired activity-dependent neurotransmission in a genomic ferlinopathy model ↗
Ferlins are a family of Ca 2+ /phospholipid-binding C2 domain transmembrane proteins (e.g. Myoferlin, Dysferlin, Otoferlin) mutated in multiple heritable human disease conditions. The unifying function of all Ferlins is Ca 2+ -dependent vesicle fusion, with roles in muscle formation, membrane repair, and neurotransmission. Drosophila has one well-conserved Ferlin, misfire ( mfr ), which provides the opportunity to test global Ferlin function via single gene manipulation. We find misfire null mutants form and maintain normal muscles with elevated muscle function. Consistently, we find misfire e…
- OpenAlex · Published · First archived
A Fast Random-Feature Surrogate for Geothermal Heat-Transport Prediction and Breakthrough Risk Screening ↗
Repeated geothermal evaluation motivates inexpensive flow and heat-transport approximations. We combine proper orthogonal decomposition (POD) with extreme learning machine (ELM) regression to reconstruct temperature fields and predict production curves and horizon-capped breakthrough times from simulation data. A manufactured elliptic benchmark examines spectral residuals; a conditional one-dimensional bound distinguishes approximation, interpolation, and regularization under assumed discrete stability. In the synthetic early-time case, the mean relative field-trajectory reconstruction error i…
- OpenAlex · Published · First archived
Lithology-dependent energy partitioning and multi-hole fragmentation control in blasting of hard and soft rocks ↗
Lithology-dependent blasting fragmentation remains a critical challenge in rock engineering, with representative hard- and soft-rock cases exhibiting contrasting damage and fragmentation responses. This study conceptualizes these responses as a lithology-controlled energy partitioning problem linking single-hole energy transmission and damage evolution to multi-hole fracture coalescence and fragmentation control. A fluid-structure interaction model was established in ANSYS/LS-DYNA and validated against blasting tests and dynamic-response characteristics. The effects of charge radius, borehole…
- OpenAlex · Published · First archived
FAMIUM Green: An Automated Hardware-in-the-Loop Framework for Energy Characterization of Video Streaming Devices ↗
The rapid growth of video streaming, which now accounts for over 70% of global internet traffic, has intensified scrutiny of the energy footprint of end-user streaming devices. This paper presents FAMIUM Green, a fully automated hardware-in-the-loop measurement framework designed for reproducible energy characterization of heterogeneous streaming devices, including smart TVs, streaming boxes, and mobile devices. The framework synchronizes hardware-level power acquisition with streaming session metadata via MPEG-SAND protocol events, allowing power changes to be linked to specific content and s…
- OpenAlex · Published · First archived
Hydraulic Coupling-Induced Flow-Regime Transition and Energy Dissipation Characteristics in Cascade Flood Discharge Systems of Large Tailings Storage Facilities ↗
Hydraulic analysis of complex flood-drainage systems is critical for the safety design of large tailings storage facilities. Conventional approaches are limited in their ability to precisely characterize three-dimensional flow fields and flow-regime transition processes under multi-structure coupling conditions. A three-dimensional FLOW-3D model was developed for the Diyan tailings storage facility using the RNG k-ε turbulence model and Tru-VOF method. The system comprises three internal drainage shafts, three external overflow shafts, and more than 4 km of connecting tunnels. Simulated discha…
- OpenAlex · Published · First archived
Dynamic soil-structure interaction and energy dissipation mechanisms in the touchdown impact of collapsing high-rise buildings ↗
During high-rise building demolition, collapsed structural components release substantial kinetic energy upon touchdown impact. This touchdown impact induces intense vibrations that severely threaten surrounding infrastructure, constituting the most prominent hazardous effect in demolition engineering. To reveal the mechanism of soil-structure interaction (SSI) during the touchdown impact of a collapsed substructure, we carried out touchdown-impact tests on a 1:3 verification frame model under different drop heights. These tests evaluated the dynamic response characteristics of both the substr…
- OpenAlex · Published · First archived
Comparative Evaluation of Hydrogen Energy Policy Frameworks in Spain and Türkiye: A Public Policy Perspective Using MCDM Methods ↗
Hydrogen is increasingly recognized as a key component of the low-carbon energy transition and has become an important element of national energy strategies worldwide. Despite the growing interest in hydrogen development, comparative evaluations of national hydrogen policy frameworks remain limited in the literature. This study provides a comparative assessment of hydrogen policies in Türkiye and Spain, two Mediterranean countries with significant renewable energy potential but different institutional contexts, as Spain is an EU member state while Türkiye is an EU candidate country. The compar…
- OpenAlex · Published · First archived
Dynamic Estimation of Representative Backsheet Temperature for Rooftop Photovoltaic Modules Under Extreme Heat: Thermal Inertia, Temporal Resolution, and Machine Learning ↗
Accurate module-temperature estimation supports assessment of rooftop photovoltaic (PV) systems, but minute-scale meteorological fluctuations and thermal memory challenge steady-state models. This study used 44,638 synchronized one-minute records from a rooftop PV platform in Chongqing, China, during August 2025. The representative backsheet temperature was the arithmetic mean of five simultaneously valid sensors. Physical, static XGBoost, and thermal-history-aware XGBoost models were compared. Lagged values, strictly prior rolling means, and increments were constructed uniformly for four mete…
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How to assess evidence about Energy
Check each original source for its methods, release status, limitations, and supporting data. A repository announcement, a preprint, and a published study provide different kinds of evidence. SYMTRI’s subject classification helps discovery; it does not independently validate the source’s claims.
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