Results 101 to 110 of about 943,309 (288)

Nuclear Analytical Facilities at the Heinz Maier-Leibnitz Centre (MLZ), Garching, Germany [PDF]

open access: yesEPJ Web of Conferences
The nuclear analytical instruments at MLZ are based on the radiative neutron capture, i.e. they are activation analytical methods. Prompt gamma activation analysis and in-beam neutron activation analysis, installed at a high-flux cold neutron beam, have ...
Révay Zsolt, Stieghorst Christian
doaj   +1 more source

Neutron flux imaging with nuclear track detectors

open access: yes, 2009
The results of an investigation on the spatial variations of neutron flux using neutron-charged particle converter materials and solid state nuclear track detectors in a thermal neutron irradiation site are reported.
A. SEGHOUR   +3 more
core   +1 more source

A neutron laue diffraction study of endothiapepsin: Implications for the aspartic proteinase mechanism [PDF]

open access: yes, 2001
Current proposals for the catalytic mechanism of aspartic proteinases are largely based on X-ray structures of bound oligopeptide inhibitors possessing nonhydrolyzable analogues of the scissile peptide bond.
Myles, D. A. A.   +13 more
core   +1 more source

Revealing the Nanoscale Morphology Changes of Polymer Electrolyte Membrane Fuel Cell Catalyst Layers due to Conditioning

open access: yesAdvanced Science, EarlyView.
We apply ex situ and in situ scanning transmission X‐ray microscopy to reveal the structural degradation of polymer electrolyte membrane fuel cell catalyst layers due to conditioning and thermal heating of the catalyst coated membrane. We observe a redistribution of the ionomer and carbon‐black in the catalyst layer, as well as nanoscale membrane ...
Spencer Lytle   +4 more
wiley   +1 more source

The use of thermoluminescent dosimeters for In-vivo dosimetry in a fast neutron therapy beam [PDF]

open access: yes, 2000
Bibliography: leaves 72-77.Thermoluminescent detectors (TLD-700) have been investigated for absorbed dose measurements in a p(66)/Be neutron therapy beam at the National Accelerator Centre.
Bhengu, Khumbulani John
core   +1 more source

Simulation of the performance of a fundamental neutron physics beamline at the high flux isotope reactor

open access: yes, 2005
We study the expected performance of the proposed fundamental neutron physics beamline at the upgraded High Flux Isotope Reactor at Oak Ridge National Laboratory. A curved neutron guide transmits the neutrons from the new cold source into a guide hall. A
Mahurin, R.; Greene, G.; Kohler, P.; Cianciolo, V.
core   +1 more source

Sticker Valence Governs Chain Collapse and Liquid‐Liquid Phase Separation in Peptide‐Inspired Associative Polymers

open access: yesAdvanced Science, EarlyView.
Peptide‐inspired associative polymers with arginine‐like guanidinium stickers and lysine‐like ammonium spacers undergo chain collapse and liquid‐liquid phase separation induced by reversible sticker associations. Sticker valence and tunable association strength jointly control the phase behavior, chain conformation, and interfacial cohesion of these ...
Seung‐Hwan Oh   +7 more
wiley   +1 more source

Advances in High-Temperature Irradiation-Resistant Neutron Detectors

open access: yesSensors
To achieve a substantial enhancement in thermodynamic efficiency, Generation IV nuclear reactors are designed to operate at significantly elevated temperatures compared to conventional reactors.
Chunyuan Wang   +3 more
doaj   +1 more source

Time-resolved fast-neutron imaging with a pulse-counting image intensifier [PDF]

open access: yes, 2006
A new imaging method that combines high-efficiency fast-neutron detection with sub-ns time resolution is presented. This is achieved by exploiting the high neutron detection efficiency of a thick scintillator and the fast timing capability and ...
Barnstedt, Juergen   +15 more
core  

Operando Visualization of Cathode Water Management in Proton Exchange Membrane Water Electrolyzers Using Synchrotron X‐Ray Radiography

open access: yesAdvanced Science, EarlyView.
The cathode of proton exchange membrane water electrolyzers remains a poorly understood region despite its importance for hydrogen purity and operational safety. Operando synchrotron X‐ray radiography directly visualizes liquid water behavior and uncovers a transition from continuous to pulsating transport, providing new insight into multiphase ...
Wataru Yoshimune   +2 more
wiley   +1 more source

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