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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 ↗694 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.
- Hacker News · Posted on Hacker News · First archived
How Delhi Achieved Its Epic Power-Grid Fix ↗
Hacker News discussion.
- arXiv · Published · First archived
CacheRepair: Learning to Repair Cross-Chunk Context in RAG for KV Cache Fusion ↗
Multi-document retrieval-augmented generation (RAG) requires a language model to process multiple retrieved text chunks before answering a question. Precomputing each chunk's KV cache independently and concatenating the caches when the chunks are retrieved can accelerate this step. However, the assembled cache lacks cross-chunk attention information, reducing answer quality. Selective recomputation methods recover the missing cross-chunk context by rerunning the target LLM on selected tokens, incurring substantial online computation. We introduce CacheRepair, a lightweight network that learns…
- arXiv · Published · First archived
Certified Compilation in the TELEPERM XS Nuclear Safety I&C Platform ↗
The large safety instrumentation & control (I&C) systems in civil nuclear power plants (NPPs) are mainly safe-shutdown systems (reactor protection) or limitation and control systems. Framatome's established TELEPERM XS (TXS Core) product family is a digital I&C system platform to cover all these applications. We illustrate the role of verification in the different stages of the software production toolchain, focus on the formal compilation process, and discuss the contribution of the CompCert certified compiler to the safety case of the product. Scrutinizing the object code produced by this co…
- Hacker News · Posted on Hacker News · First archived
Drilling starts on a seafloor geothermal well off Oregon ↗
Hacker News discussion.
- GitHub · Repository created · First archived
Alpha-Park/genpark-simulated-annealing-metropolis-skill ↗
Simulated Annealing global search with Metropolis probabilistic acceptance criterion and geometric cooling.
- Hacker News · Posted on Hacker News · First archived
Australia's Waratah Super Battery Now Operating at Full Capacity ↗
Hacker News discussion.
- GitHub · Repository created · First archived
Alpha-Park/genpark-cosine-bm25-reciprocal-rank-fusion-skill ↗
Zero-dependency hybrid retrieval engine fusing sparse lexical BM25 Okapi and dense Cosine vector similarities via Reciprocal Rank Fusion.
- GitHub · Repository created · First archived
alphaparkinc/genpark-cosine-bm25-reciprocal-rank-fusion-skill ↗
Zero-dependency hybrid retrieval engine fusing sparse lexical BM25 Okapi and dense Cosine vector similarities via Reciprocal Rank Fusion.
- arXiv · Published · First archived
Observer-Based Model Predictive Control for Isoflux Regulation in the EXL-50U Spherical Tokamak ↗
Isoflux control in spherical tokamaks requires coordinated plasma-current and boundary regulation under coil-voltage and computational constraints. This study develops observer-based constrained model predictive control (MPC) for EXL-50U. Vacuum-vessel spatial coarsening reduces a 538-state linearized model to 40 states while retaining control-relevant responses. A Kalman observer provides full-state estimates, and MPC jointly optimizes current and boundary-flux tracking with explicit voltage bounds. Matrix precomputation, specialized solver code generation, and structured linear-system soluti…
- OpenAlex · Published · First archived
Topology optimization of the NaK78 inlet distributor for a liquid-cooled space nuclear reactor heat exchanger ↗
Liquid-metal-cooled space nuclear reactors coupled with closed Brayton cycles are promising candidates for high-power deep-space missions. In these systems, the NaK78-to-He dual-fluid heat exchanger is critical. Yet, the concentrated liquid-metal inlet causes severe flow maldistribution, which can consume the limited pressure head (only 10–20% of that available from mechanical pumps) from electromagnetic pumps driving the NaK78 loop. Existing remedial measures rely on trial-and-error modifications to predefined geometric forms, offering no guarantee of optimality. In this work, we apply densit…
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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