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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 ↗693 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
Hierarchical multimodal semantic fusion for few-shot reader action recognition in reading environments ↗
Abstract Understanding reader behavior in real-world reading environments is important for data-driven content services and intelligent publishing analytics. However, most action recognition methods target motion-dominant scenarios and struggle under few-shot conditions to capture the subtle visual cues and hierarchical semantics of reading-related behaviors. To address this problem, we construct the Reader Action Recognition Dataset (RARS), containing 12 action classes and 1,728 video clips, and propose a Hierarchical Semantic Fusion Network (HSFN) for few-shot reader action recognition. HSFN…
- OpenAlex · Published · First archived
Mitigation of non-uniform thermal loading in concentrated photovoltaic/thermal systems using spectral filtering and phase change material-based energy storage ↗
Concentrated photovoltaic/thermal (CPV/T) receivers are vulnerable to non-uniform concentrated illumination, which promotes localized hot spots, thermal gradients, electrical mismatch risk, and accelerated photovoltaic (PV) degradation under harsh climates. This study develops a hybrid CPV/T-SBS/PCM receiver that combines spectral beam splitting, Therminol VP-1-based bypass cooling, and phase change material (PCM) buffering to improve PV protection and dual electrical-thermal recovery. The work advances CPV/T modelling by integrating non-uniform optical concentration, spectral filtering, activ…
- OpenAlex · Published · First archived
Renewable power-to-heat solution integrated with glycerol-based thermal energy storage system for industrial process heat ↗
The industrial sector is a major contributor to global greenhouse gas emissions, highlighting the need for efficient power-to-heat solutions. This study proposes a novel power-to-heat system integrated with a glycerol-based thermal energy storage and presents the first system-level assessment of pure glycerol as a sensible heat storage material for industrial process heat in the 100–200 °C range. A simplified transient thermal-hydraulic model for hybrid configuration which combines passive storage and cascade operation for supplying heat at a relatively constant temperature is developed. Simul…
- OpenAlex · Published · First archived
Solar Energy Autopilot (SOLEA): A holistic system architecture for autonomous concentrated solar thermal plants ↗
Concentrated solar thermal (CST) plants can provide dispatchable renewable energy through high-temperature heat and integrated thermal storage, but their commercial deployment is hampered by high operational complexity and associated costs. Increasing the degree of system autonomy is a promising strategy to manage this complexity, reduce operating costs, and improve plant efficiency. However, most existing work still focuses on isolated automation tasks such as heliostat calibration, flux measurement, or plant maintenance rather than plant-wide automation concepts. In addition, there is little…
- OpenAlex · Published · First archived
Insects select flight speeds that coincide with low metabolic energy expenditure ↗
Abstract Aerodynamic theory predicts a U-shaped relationship between mechanical power and airspeed. Empirical data from birds and bats support a similar U-shaped metabolic power–speed curve, reflecting the underlying muscle mechanics. However, data on insects’ flight energetics remain limited and sometimes conflicting, with some studies reporting airspeed-independent metabolic rates and others suggesting U-shaped relationships. To evaluate whether a consistent metabolic power–speed relationship exists across insect orders, we quantified the energetic cost of tethered flight across a range of a…
- OpenAlex · Published · First archived
VDLF-Net: Variational Feature Fusion for Adaptive and Few-Shot Visual Learning ↗
Modeling high-dimensional visual data presents two intertwined challenges: learning feature representations that adapt to complex structures, and enabling robust inference with limited labeled examples. Although deep learning models, such as Convolutional Neural Networks, excel at representation learning and variational methods, e.g., Variational Autoencoders, offer a principled framework for uncertainty quantification, combining them for both challenges remains an active modeling problem. Driven by this limitation, this paper proposes a novel variational deep learning fusion framework. Its co…
- OpenAlex · Published · First archived
Low-energy dynamics in generic potential fields: Hyperbolic periodic orbits and non-ergodicity ↗
We prove that, on each low energy level, the natural Hamiltonian system defined by a generic smooth potential on $\mathbf{T}^2$ exhibits an arbitrarily high number of hyperbolic periodic orbits and a positive-measure set of invariant tori. Hence, quasi-periodic motion and hyperbolic behavior typically coexist in the low-energy dynamics of natural Hamiltonian systems with two degrees of freedom.
- GitHub · Repository created · First archived
CIS-C0/RFSentinel ↗
A free, open-source Android app that listens to Bluetooth LE advertisements and WiFi beacons around you and flags police and surveillance equipment: body cameras, Flock and other plate-reader cameras, patrol-vehicle gear, trackers following you, Remote ID drones and camera glasses. It also watches the cell network for fake-tower (IMSI catcher) sign
- Hacker News · Posted on Hacker News · First archived
NRC issues first U.S. construction permit for a BWRX-300 small modular reactor ↗
https://www.nytimes.com/2026/09/29/climate/nuclear-reactor-t... ( https://archive.ph/VmDVO )
- Hacker News · Posted on Hacker News · First archived
Electrification efficiency: The world will need less energy after the transition ↗
Hacker News discussion.
Live window recorded . This is the ingestion observation time, not the publication or discovery date of each source.
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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