Results 31 to 40 of about 27,819,360 (288)
Brazilian Journal of Radiation Sciences, 2021 In southwest Amazonia, in the region of the Upper Madeira River, Rondônia, archaeological research has shown that communities with diverse cultures co-existed in the pre-colonial past (ca. 1,000 BP). Archaeological sites from this period located on river
Angislaine Freitas Costa +3 more
doaj +1 more source
Activation analysis of targets and lead in a lead slowing down spectrometer system
Nuclear Engineering and Technology, 2018 A neutron generation system was developed to induce fissile fission in a lead slowing down spectrometer (LSDS) system. The source neutron is one of the key factors for LSDS system work.
Yongdeok Lee +3 more
doaj +1 more source
Brazilian Journal of Radiation Sciences, 2021 Iodine is one of the essential trace elements of much interest in nutritional research being responsible for the production of the thyroid hormones, which has great importance for human metabolism. Edible algae species accumulate iodine from seawater and
Caroline Rodrigues Albuquerque +2 more
doaj +1 more source
Instrumental neutron activation analysis of an enriched 28Si single-crystal
, 2014 The determination of the Avogadro constant plays a key role in the redefinition of the kilogram in terms of a fundamental constant. The present experiment makes use of a silicon single-crystal highly enriched in 28Si that must have a total impurity mass ...
MANA, GIOVANNI +4 more
core +1 more source
AtmosphereInstrumental neutron activation analysis in combination with the method of moss biomonitoring for the assessment of atmospheric deposition of heavy metals and other elements was applied for the first time in the Ryazan Region in Russia. Concentrations of
Eleonora Blinova +3 more
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FEBS Open Bio, EarlyView.This minireview explores fluorination as a key strategy to optimize therapeutic molecules and nanocarriers. By incorporating different fluorinated motifs—from single atoms to linear and branched chains—drug delivery, cellular uptake, and colloidal stability can be improved and fine‐tuned.
Martina Beccalli +2 more
wiley +1 more source
Correlated Polymer-Proton Hopping Enables Water-Independent Fast Proton Transport in Poly(Ionic Liquid) Membranes. [PDF]
Adv Sci (Weinh)A polymer chain in motion: backbone, ring, and counterion dynamics interlock across timescales to relay protons through poly(ionic liquid) membranes. ABSTRACT Polymer electrolyte membranes composed of ionic liquids (IL), capable of conducting protons efficiently at elevated temperatures, without external humidification, could transform fuel cell ...
Smith K +11 more
europepmc +2 more sources
Advanced Engineering Materials, EarlyView.Mass density governs the protective behavior of oxide layers on nuclear fuel cladding. Ptychographic X‐ray computed tomography measures zirconium oxide grown on Zircaloy‐4 under reactor and autoclave conditions, revealing nearly identical bulk densities of 5.1 ± 0.80 g cm−3.
Okan Yetik +9 more
wiley +1 more source
Proceedings, 2018 In this article the methodology for the determination of the theoretical gamma spectrum originated by applying DGNAA (delayed gamma neutron analysis activation) techniques for the elemental analysis of ash from thermal power plants is exposed.
German Marcos-Robredo +3 more
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Physics Open, 2021 The present and future developments of time-resolved prompt-gamma activation analysis (T-PGAA) at pulsed neutron sources is discussed in the framework of the successful history of neutron-activation techniques. A brief description of the state of the art
Giovanni Romanelli +6 more
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