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Earlier sources: Nuclear
This energy thread follows nuclear through original research, public projects, and source reports. Read the evidence below to see which developments are represented in SYMTRI’s archive.
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 ↗59 classified signals in the fourteen-day window. 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
Comparative Analysis of the Characteristics and Operational Efficiency of a Combined Heat and Power Plant with AP300 and BWRX-300 SMR Reactors ↗
The purpose of this study is to compare the energy performance characteristics of two small modular reactor (SMR) technologies, the AP300 and the BWRX-300, under conditions of simultaneous electricity and heat production. Mathematical models of both systems were developed, covering the steam–water cycle, the turbine and the heat recovery system. The analysis was carried out for a heat output range of 50–500 MWt, under identical heat utilisation conditions. The gross and net electrical power, in-house plant consumption, electrical, thermal and total efficiency, unit steam consumption and the co…
- OpenAlex · Published · First archived
Continuous screw-reactor co-pyrolysis of waste cooking oil sludge and polyolefin plastic waste: thermal behavior, oil quality, and potential for fuel applications ↗
This study investigated the pyrolysis of waste cooking oil sludge (WCOS) and its co-pyrolysis with polypropylene (PP) and high-density polyethylene (HDPE) at 500 °C in a continuous double-screw reactor to evaluate product yields, oil quality, energy recovery, and preliminary economic performance. The novelty of this work lies in evaluating WCOS with individual polyolefin co-feedstocks under the same continuous operating conditions, together with an integrated assessment of product distribution, liquid-fuel characteristics, energy performance, and preliminary process economics. At a 50:50 blend…
- OpenAlex · Published · First archived
A new method for calculating the weak source startup of reactor based on Monte Carlo method ↗
Weak source startup represents a reactor startup regime in which neutron population evolution is dominated by stochastic effects and cannot be adequately described using conventional deterministic or point-kinetics approaches. The weak source startup approach, which operates without an external neutron source, eliminates the need for costly neutron source procurement and improves the economic performance of nuclear power plants. In this study, a Monte Carlo based method is developed for simulating weak source startup processes. The proposed approach enables direct time-dependent simulation of…
- OpenAlex · Published · First archived
Development and implementation of a surrogate model for bare critical Mass estimation in nuclear fuel cycle simulator ↗
In this study, estimation functions of bare critical mass (BCM) and heat content (HC) of nuclear materials were developed and introduced into a nuclear fuel cycle simulator, the Nuclear Material Balance (NMB), in order to use them for non-proliferation studies of future advanced nuclear fuel cycles. HC is defined as the total decay heat of one BCM of material. To reduce the calculation cost of Monte Carlo calculation for BCM, a surrogate model was developed. Several regression models were compared using BCM data calculated by MCNP-6.2 and JENDL-5 for randomly generated actinide compositions, a…
- Hacker News · Posted on Hacker News · First archived
AI Assistants Transform Nuclear Power Plant Work ↗
Hacker News discussion.
- OpenAlex · Published · First archived
Criticality Preservation Without Using a Classical Control System in a Small-Scale Demonstrator for a Molten Salt Fast Reactor ↗
The Molten Salt Fast Reactor (MSFR) concept, integrated into the iMAGINE framework, offers a transformative approach to nuclear waste management and fuel cycle closure. However, industrial deployment requires a small-scale demonstrator, DEMO, to validate reactor physics and safety under realistic conditions. This study investigates the central challenge of sustaining criticality in a 50 MWth demonstrator over a 20-year lifespan, with the innovative challenge of operating without employing a traditional mechanical control system. Using the HELIOS code package, simulations reveal that a referenc…
- OpenAlex · Published · First archived
Structural improvement of tilting-pad thrust bearings in nuclear reactor coolant pumps based on thermal elastohydrodynamic lubrication analysis ↗
As a core supporting component of a nuclear main pump, the tilting-pad thrust bearing carries a large axial load, and its lubrication performance directly affects the operational reliability of the pump. This study develops a fluid–structure coupled thermal elastohydrodynamic lubrication model for an oil-lubricated point-supported tilting-pad thrust bearing by considering the contact effect at the pad-back pivot. Within each physical time step, partitioned iterative coupling is implemented between the oil-film lubrication field and the thermoelastic deformation field of the pad. Based on this…
- OpenAlex · Published · First archived
A nuclear receptor PcHR96h regulates ABC transporters involved in spirodiclofen resistance in Panonychus citri ↗
Transcription factors are known to regulate detoxification gene expression and contribute to resistance to insecticides and acaricides in arthropods. Our previous study revealed that the nuclear hormone receptor PcHR96h is associated with spirodiclofen resistance in Panonychus citri, but its regulatory mechanism remains unclear. Here, we used DAP-seq to identify genome-wide targets of PcHR96h and found that ABC transporter genes were significantly enriched. Dual-luciferase, yeast one-hybrid, and EMSA assays verified that PcHR96h directly binds to the promoters of PcABCA2 and PcABCB2. Functiona…
- OpenAlex · Published · First archived
Pulsed Research Reactors and the Development of a Large-Scale Uranium–Graphite Pulsed Reactor Concept Based on Experience Gained with IGR ↗
For the safety assessment of existing reactor systems and the development of advanced nuclear technologies, it is essential to have experimental data on how nuclear fuel and structural materials respond under rapid transient conditions . Pulsed research reactors provide unique capabilities for reproducing short-duration power excursions with high neutron fluxes and rapid energy deposition. Many existing pulsed facilities were commissioned several decades ago and are approaching the limits of their experimental capabilities, highlighting the need for next-generation pulsed reactors. This paper…
- OpenAlex · Published · First archived
Morocco's nuclear option readiness (2026–2050): A governance-first approach aligned with the IAEA milestones framework ↗
This study examines the public evidence available for assessing Morocco's nuclear power decision readiness across the 19 infrastructure issues of the International Atomic Energy Agency (IAEA) Milestones Approach. A documentary assessment separates established institutional foundations, evidence of preparatory activity, and matters that remain unverified. An author-developed Level 0–3 scale describes the maturity of the documented arrangements within their stated scope; it is neither an IAEA scoring system nor a test of Milestone 1 attainment. The assessment recognizes Morocco's previous infras…
Live window recorded . This is the ingestion observation time, not the publication or discovery date of each source.
How to assess evidence about Nuclear
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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