Results 71 to 80 of about 1,546,971 (249)

Metal Compound‐Based Non‐Enzymatic Electrochemical Cholesterol Sensors: Emerging Materials and Mechanistic Insights

open access: yesAdvanced Materials Interfaces, EarlyView.
This review discusses recent progress in metal complex‐based, non‐enzymatic electrochemical sensors for cholesterol detection. We examine metal oxides, metal sulfides, and hybrid nanomaterials, highlighting their catalytic mechanisms and material design strategies.
Longfei (Jack) Yin   +6 more
wiley   +1 more source

Measurements of turbulent velocity and temperature in a wall channel of a heated rod bundle

open access: yes, 1995
Turbulente Stroemung durch einen Wandkanal eines beheizten 37-Stabbuendels (P/D=1.12, W/D=1.06) wurde untersucht. Die Messungen wurden mit einer Hitzdrahtsonde mit x-Draehten und einem Temperaturdraht durchgefuehrt.
Krauss, T.   +2 more
core  

Turbulence Modeling of Axial Flow in a Bare Rod Bundle

open access: yes, 1979
Temperature distribution within the rod bundle of a nuclear reactor is of major importance in nuclear reactor design. However temperature information presupposes knowledge of the hydrodynamic behavior of the coolant which is the most difficult part of ...
N. E. Todreas, J. G. Bartzis
core   +1 more source

Assessment of CTF Boiling Transition and Critical Heat Flux Modeling Capabilities Using the OECD/NRC BFBT and PSBT Benchmark Databases

open access: yesScience and Technology of Nuclear Installations, 2013
Over the last few years, the Pennsylvania State University (PSU) under the sponsorship of the US Nuclear Regulatory Commission (NRC) has prepared, organized, conducted, and summarized two international benchmarks based on the NUPEC data—the OECD/NRC Full-
Maria Avramova, Diana Cuervo
doaj   +1 more source

Interface Dynamics in Biomolecular Condensates by High‐Speed AFM

open access: yesAdvanced Materials Interfaces, EarlyView.
High‐speed atomic force microscopy provides nanoscale structural dynamics at the liquid interface of biomolecular condensates, key elements in several cellular pathways. By addressing the challenges of low surface tension and condensate‐induced instabilities, we achieve nanometer spatial and sub‐second temporal resolution, revealing structural ...
Andreas Santamaria   +6 more
wiley   +1 more source

Experimental study and sub-channel analysis on the transverse mixing of the helical cruciform fuel assembly

open access: yesNuclear Engineering and Technology
The helical cruciform fuel (HCF) is characterized as self-mixing and self-supporting, which has promising applications in advanced nuclear power devices.
Qi Zhang   +10 more
doaj   +1 more source

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

open access: yesAdvanced 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   +5 more
wiley   +1 more source

Transient Three-Dimensional Stability Analysis of Supercritical Water Reactor Rod Bundle Subchannels by a Computational Fluid Dynamics Code

open access: yes, 2009
The paper describes the application of CFD in simulating density wave oscillations in triangular and square pitch rod bundles. The FLUENT code is used for this purpose, addressing typical conditions proposed for SCWR
CHEN RU ZHAO   +4 more
core   +1 more source

Programmable Variable‐Stiffness Multilayer Elastomer Composites With High‐Aspect‐Ratio Low‐Melting‐Point Alloy Inclusions

open access: yesAdvanced Materials Technologies, EarlyView.
High‐aspect‐ratio low‐melting‐point alloy inclusions are embedded within multilayer silicone laminates to create thermally programmable stiffness. Sequential activation of alloy‐rich layers produces four distinct mechanical states and reconfigures tendon‐driven actuator trajectories under the same load.
Palpolage Don Shehan Hiroshan Gunawardane   +4 more
wiley   +1 more source

Analysis of Transverse Flow Characteristics in LBE-cooled Wire-wrapped Fuel Assembly

open access: yesYuanzineng kexue jishu, 2022
LBE-cooled fast reactor (LBFR) has a promising application prospect in energy generation and transmutation of highlevel radioactive waste. Wirewrapped fuel rods are usually used in LBFR to reach high heat transfer efficiency and selfsupport.
CONG Tenglong;WANG Junjie;XIAO Yao;LIU Maolong;GU Hanyang
doaj  

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