Results 31 to 40 of about 248 (138)

Polycyclic Metamorphism, Exhumation, and Recycling of Subduction Complex Rocks, Cedros Island, Baja California

Tectonics, Volume 45, Issue 4, April 2026.
Abstract High‐pressure rocks from subduction complexes are key records of the physical and chemical processes that operate on the subduction interface, but interpretation of these records requires accurate structural understanding of where they formed in the subduction zone and the mechanisms by which they were exhumed. We present new geologic mapping,
Jordan W. Wang, Paul Kapp, Robert Holder, John He, David Hernández‐Uribe, James Worthington   +5 more
wiley   +1 more source

CFD Investigations of Subcooled Flow Boiling in a Random Pebble Bed

Chemical Engineering Transactions, 2017
A new concept of nuclear reactors, Pebble Bed Water Reactor (PBWR), has attracted wide attention due to the advantages in the inherent safety performance, high conversion efficiency and low power density design.
S. Bu, J. Wu, J. Wang, W. Sun, Z. Ma, L. Pan   +5 more
doaj   +1 more source

Revised History of Pleistocene Vertical Motions in NE Sicily and Southern Calabria, Italy, From 40Ar/39Ar Dating and Fault Zone Morphology

Tectonics, Volume 45, Issue 2, February 2026.
Abstract Long‐term rates of crustal uplift in southern Calabria and NE Sicily are incompletely understood due to limited information about the age of marine terraces at 1.0–1.3 km above sea level (asl). This study provides a new constraint on high‐elevation terrace ages through integrated analysis of geochronology, stratigraphy, shoreline modeling, and
Rebecca J. Dorsey, Gianfranco Di Vincenzo, Marco Meschis, Sergio G. Longhitano, William Cavazza, Domenico Chiarella   +5 more
wiley   +1 more source

Porosity Effect in the Core Thermal Hydraulics for Ultra High Temperature Gas-cooled Reactor [PDF]

Journal of Systemics, Cybernetics and Informatics, 2008
This study presents an experimental method of porosity evaluation and a predictive thermal-hydraulic analysis with packed spheres in a nuclear reactor core.
Motoo Fumizawa, Yoshihiko Kaneko, Masanori Izumi   +2 more
doaj  

Determining the Effect of Grain Size on the Microstructure and Oxidation of Nuclear Graphite

Carbon Energy, Volume 8, Issue 1, January 2026.
Superfine‐grained graphite is developed, showing oxidation resistance comparable to that of medium‐grained graphite. The study reveals that two intrinsic parameters govern its performance: reactive site concentration dictates chemical kinetics, whereas pore tortuosity controls oxidant diffusion.
Xu Qiao, Xinlei Cao, Yuying Zhang, Wei Chen, Chunzhen Yang, Zhengcao Li, Xing Zhou, Ke Shen, Zhou Zhou   +8 more
wiley   +1 more source

STUDI MODEL ALIRAN FLUIDA DAN PERPINDAHAN PANAS PADA PBMR.

Jurnal Penelitian Fisika dan Aplikasinya, 2013
Reaktor tipe Pebble bed merupakan opsi yang menjanjikan untuk teknologi reaktor generasi mendatang dan memiliki potensi untuk memberikan pembangkitan listrik dengan efisiensi tinggi dan murah.Perpindahan panas reaktor ini menghadapi kendala akibat ...
Achmad Fatich Al-Qodri
doaj  

Numerical Simulation of Particle Flow Motion in a Two-Dimensional Modular Pebble-Bed Reactor with Discrete Element Method

Science and Technology of Nuclear Installations, 2013
Modular pebble-bed nuclear reactor (MPBNR) technology is promising due to its attractive features such as high fuel performance and inherent safety. Particle motion of fuel and graphite pebbles is highly associated with the performance of pebbled-bed ...
Guodong Liu, Yining Zhang, Huilin Lu, Ersheng You, Xiang Li   +4 more
doaj   +1 more source

Transmuting the Arid: Fission‐Powered Visions—Unlocking Ghana’s Aquatic Destiny Through Nuclear Desalination

Science and Technology of Nuclear Installations, Volume 2026, Issue 1, 2026.
Water scarcity poses a mounting constraint on Ghana’s socioeconomic development, intensified by climate‐driven hydrological variability, rapid urbanization, and industrial expansion. This study presents a Ghana‐specific techno‐economic and policy‐integrated assessment of nuclear‐powered seawater desalination, moving beyond generic applications of ...
Felix Ameyaw, Etornam Akaho, Seth Debrah, Doddy Kastanya   +3 more
wiley   +1 more source

Reactivity Effects in a Very-High-Temperature Pebble-Bed Reactor

Atom Indonesia, 2021
The very-high-temperature reactor (VHTR) is one of the most promising and innovative designs selected by the Generation IV International Forum. Although previous papers have focused on the study and optimization of several parameter of a VHTR conceptual ...
D. M. Pérez, L. H. Pardo, D. M. Pérez, L. P. R. Garcia, D. E. M. Lorenzo, C. A. B. de Oliveira Lira   +5 more
doaj   +1 more source

Implications of Innovative Nuclear Technologies on Ghana’s Nuclear Future

Science and Technology of Nuclear Installations, Volume 2026, Issue 1, 2026.
Innovations in nuclear technology have the potential to play a transformative role in Ghana’s pursuit of a secure, reliable and low‐carbon energy future. This review examines recent global advances in nuclear reactor technologies, fuel cycle systems, waste management approaches, regulatory practices and digital applications and assesses their relevance
R. G. Abrefah, B. K. A. Baiden, F. Ameyaw, S. A. Zakaria, Doddy Kastanya   +4 more
wiley   +1 more source