Results 81 to 90 of about 419,560 (212)

Calculation of Temperature Fields in a Lithium Ceramic Pebble Bed during Reactor Irradiation in a Vacuum. [PDF]

Materials (Basel), 2023
Chikhray Y, Kulsartov T, Zaurbekova Z, Kenzhina I, Samarkhanov K.   +4 more
europepmc   +1 more source

Not all rhodoliths need a bed–depositional mechanisms in shallow water Sporolithon nodosum rhodoliths from the Whangaparaoa peninsula (North Island, New Zealand)

Sedimentology, EarlyView.
ABSTRACT Rhodoliths, formed by crustose coralline algae (CCA), are prominent components in carbonate platform deposits, contributing to the characteristic rhodalgal facies. Their formation is influenced by both biological and physical factors, and under specific conditions, they can accumulate, forming extensive rhodolith beds.
Sebastian Teichert, Thomas Mölg, Ines Pyko, Elena Kropač, Peter Marriott, Roberta D'Archino, Nicolas Cullen, Daniela Basso, Nora Persch, Sven Bach, Ella Lis, Beau Masters, Wendy Nelson   +12 more
wiley   +1 more source

Pebble flow in the HTR-PM reactor core by GPU-DEM simulation: Effect of friction

Nuclear Engineering and Technology
The high-temperature gas-cooled reactor (HTGR) with spherical fuel elements contains complex pebble flow. The flow behavior of pebbles is influenced by various factors, such as pebble density, friction coefficient, wall structure, and discharge port size.
Zuoyi Zhang, Quan Zou, Nan Gui, Bing Xia, Zhiyong Liu, Xingtuan Yang   +5 more
doaj   +1 more source

Contourite erosional and depositional features of the Maastrichtian chalk on Jasmund peninsula (Rügen island, NE Germany)

Sedimentology, EarlyView.
ABSTRACT Seismic‐scale features such as deeply incised submarine valleys and mounded drifts together with ichnological features indicative of discontinuous sedimentation and erosional episodes have recently been documented from the Upper Cretaceous chalk in the southern Baltic Sea area.
Marcel Schlembach, Heiko Hüneke, Mike Reich, Svante Peters, Nele Ahlhaus, Sylvia Weinert, Arwed Gibb   +6 more
wiley   +1 more source

Effect of pebble size and bed dimension on the distribution of voidages in pebble bed reactor

, 2018
The HTR-10 built at Tsinghua University is an advanced pebble bed reactor because of its inherent safety and economic efficiency. It is fundamental to explore the voidage of the pebble bed.
Yin Xiong (342546), Yang Xingtuan (20061480), Jiyuan Tu (18029428), Ge Liang (578601), Shengyao Jiang (707791), Gui Nan (20061477)   +5 more
core  

The Optimization of Radiation Protection in the Design of the High Temperature Reactor-Pebble-Bed Module

Science and Technology of Nuclear Installations, 2017
The optimization of radiation protection is an important task in both the design and operation of a nuclear power plant. Although this topic has been considerably investigated for pressurized water reactors, there are very few public reports on it for ...
Sida Sun, Hong Li, Sheng Fang
doaj   +1 more source

Drowned carbonate‐rimmed margin controlling shelf‐edge delta progradation and sedimentation dynamics: Upper Cretaceous Woodbine Formation, Texas, USA

Sedimentology, EarlyView.
ABSTRACT Shelf‐edge deltas are commonly interpreted to record basinward facies migration across uninterrupted, gently dipping shelf margins; however, examples from mixed siliciclastic‐carbonate margins reveal more complex depositional dynamics. Periods and areas of carbonate sedimentation within mixed siliciclastic‐carbonate margins can modify shelf ...
Abdulkarim Al‐Hussaini, Cornel Olariu, Charles Kerans, Ronald Steel   +3 more
wiley   +1 more source

Effect of bed configuration on pebble flow uniformity and stagnation in the pebble bed reactor

, 2014
Pebble flow uniformity and stagnation characteristics are very important for the design of pebble bed high temperature gas-cooled reactor. Pebble flows inside some specifically designed contraction configurations of pebble bed are studied by discrete ...
Nan Gui (707790), Xingtuan Yang (707789), Jiyuan Tu (18029428), Shengyao Jiang (707791)   +3 more
core  

Effects of restitution coefficient on pebble motion in a thin pebble bed – Lagrangian analysis

, 2020
The core of pebble bed type reactor (HTGR) is a packed bed composed of spherical pebbles (fuel element and graphite moderator). The restitution coefficient is an important parameter which is directly related to the flow of the core pebbles and affects ...
Nan Gui (707790), Xingtuan Yang (707789), Houbo Qi (20058246), Jiyuan Tu (18029428), Shengyao Jiang (707791)   +4 more
core  

Research on the Computed Tomography Pebble Flow Detecting System for HTR-PM

Science and Technology of Nuclear Installations, 2017
Pebble dynamics is important for the safe operation of pebble-bed high temperature gas-cooled reactors and is a complicated problem of great concern. To investigate it more authentically, a computed tomography pebble flow detecting (CT-PFD) system has ...
Xin Wan, Ximing Liu, Jichen Miao, Peng Cong, Yuai Zhang, Zhifang Wu   +5 more
doaj   +1 more source