Results 61 to 70 of about 167,077 (303)

Exploring the Potential of Zero‐Dimensional Carbon Nanomaterials in Photoluminescent, Electrochemiluminescent and Electrochemical Sensors

Advanced Materials Interfaces, EarlyView.
Zero‐dimensional carbon nanomaterials are presented as multifunctional platforms linking structure, property, and sensing performance. Surface engineering and heteroatom doping modulate electron‐transfer and luminescent behavior, enabling electrochemical, photoluminescent, and electrochemiluminescent detection. Fundamental design principles, analytical
Gustavo Martins, Jeferson Luiz Gogola, Ava Gevaerd, Cristiane Kalinke, Paulo Roberto de Oliveira, Fabio Roberto Caetano, Bruno Campos Janegitz, Márcio Fernando Bergamini, Luiz Humberto Marcolino‐Junior   +8 more
wiley   +1 more source

Fundamentals of 3-D Neutron Kinetics and Current Status [PDF]

, 2008
This lecture includes the following topics: 1) A summary of the cell and lattice calculations used to generate the neutron reaction data for neutron kinetics, including the spectral and burn up calculations of LWR cells and fuel assembly lattices, and ...
Aragonés Beltrán, José María
core   +1 more source

Electronic Structure Modulation Induced by Asymmetric Cu─Ni Centers in a π‐Conjugated Triazine MOF

Advanced Materials Interfaces, EarlyView.
A π‐conjugated H3TATB‐based asymmetric bimetallic CuNi‐MOF was developed as an efficient electrocatalyst for alkaline hydrogen evolution. Benefiting from synergistic Cu–Ni interactions, enhanced charge transfer, and stabilized active sites, CuNi‐MOF delivers superior HER performance with low overpotential, improved kinetics, and 24 h durability.
Alamgir, Raza Ullah, Nouraiz Mushtaq, Agasthiyaraj Lakshmanan, Abrar Ahmad, Xusheng Wang, Junbo Liang, Sailing He   +7 more
wiley   +1 more source

Key results from examinations of seven high burnup pressurized water reactor spent nuclear fuel rods

Frontiers in Nuclear Engineering
At present, spent nuclear fuel (SNF) assemblies discharged from US commercial power plants are placed into dry storage following a short cooling time (<10 years) in the plant’s spent fuel pool.
Rose Montgomery, Bruce Bevard, Paul Cantonwine, Yadukrishnan Sasikumar   +3 more
doaj   +1 more source

Flow and Heat Transfer Analysis in Lead-bismuth Reactor Core under Rod Bending Condition

Yuanzineng kexue jishu, 2023
Liquid metal-cooled fast reactors (LMFRs) are being investigated in many countries as the next-generation nuclear reactors. Fuel rods in LMFRs are commonly arranged in a triangular pitch and assembled in a hexagonal fuel wrapper.
QIU Hanrui;LI Jun;WANG Mingjun;ZHANG Jing;TIAN Wenxi;SU Guanghui
doaj  

Nuclear reactor control rod assembly with improved driving mechanism Patent [PDF]

, 1965
Nuclear reactor control rod assembly with improved driving ...
Macomber, J. W.
core   +1 more source

From the Discovery of the Giant Magnetocaloric Effect to the Development of High‐Power‐Density Systems

Advanced Materials Technologies, EarlyView.
The article overviews past and current efforts on caloric materials and systems, highlighting the contributions of Ames National Laboratory to the field. Solid‐state caloric heat pumping is an innovative method that can be implemented in a wide range of cooling and heating applications.
Agata Czernuszewicz, Yaroslav Mudryk, Jun Cui, Lucas Griffith, Duane D. Johnson, Julie Slaughter   +5 more
wiley   +1 more source

Criticality safety of fuel assemblies with missing fuel rods

Annals of Nuclear Energy
International audience ; The present work is concerned with the problem of determining the reactivity of an assembly from which an unknown number of fuel pins are removed at random locations. Because it is usually designed to be under-moderated, the reactivity of an incomplete assembly will pass by an optimum when the number and position of the missing
Benjamin Dechenaux, Thomas Delcambre, Fausto Malvagi   +2 more
openaire   +2 more sources

On–Off Switchable Micromotors for Use in Steerable Microvehicles

Advanced Robotics Research, EarlyView.
Electrically controllable micromotors and microvehicles are developed by tuning the diffusion of the fuel. Self‐propelled micromotors using bubble propulsion show great promise for miniaturized devices with multiuse purposes such as cargo delivery and sensing. However, there is currently no method to electrically switch the micromotors on or off. Here,
Hugo Severinsson, Eswaran Murugasen, Jose G. Martinez, Edwin W. H. Jager   +3 more
wiley   +1 more source

Impact of revised RG 1.183 on source terms and radiological consequences of rod ejection accident for the HRP1000 reactor

International Journal of Advanced Nuclear Reactor Design and Technology
This paper compares and analyzes the impact of the revised RG 1.183 on the source term and radioactive consequences of the rod ejection accident. The revision of RG 1.183 has resulted in changes to key assumptions in the source term analysis of the rod ...
Yichen Chen, Changdong Lu, Zewu Zhao, Pingting Jiang, Chao Yu   +4 more
doaj   +1 more source