Results 31 to 40 of about 23,405,867 (246)

Iodine determination in edible algae species using epithermal neutron activation analysis methodology

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, Vera Akiko Maihara, Paulo Sergio Cardoso Sila   +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, Oddone M., BERGAMASCHI, LUIGI, Giordani L, D'AGOSTINO, GIANCARLO   +4 more
core   +1 more source

Moss Technique Used to Monitor the Atmospheric Deposition of Trace Elements on the Territory of the Ryazan Region, Russia

Atmosphere
Instrumental 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, Marina Frontasyeva, Omari Chaligava, Boris Kochurov   +3 more
doaj   +1 more source

Neutron activation analysis of the 30Si content of highly enriched 28Si: proof of concept and estimation of the achievable uncertainty

, 2014
We investigated the use of neutron activation to estimate the 30Si mole fraction of the ultra-pure silicon material highly enriched in 28Si for the measurement of the Avogadro constant.
G. Mana, MANA, GIOVANNI, Prata M, G. D’Agostino, L. Bergamaschi, PRATA, MICHELE, Oddone M, BERGAMASCHI, LUIGI, Giordani L., ODDONE, MASSIMO, GIORDANI, LAURA FRANCA, D'AGOSTINO, GIANCARLO   +11 more
core   +1 more source

A study of the use of palm fiber and palm shell as a thermal neutron radiation shielding material

Case Studies in Thermal Engineering, 2019
Preliminary studies have been conducted to determine the benefits of using palm fiber and shells as thermal neutron radiation shielding materials. The method in this research using Neutron Activation Analysis (NAA).
Evi Christiani Sitepu, Timbangen Sembiring, Kerista Sebayang, Iwan Sumirat, Martha Rianna, Eddy Marlianto, Sulistioso Giat Sukaryo   +6 more
doaj   +1 more source

Giant Magnetic Coercivity Driven by Spin‐Bag Ferromagnetism in Epitaxial Sr3YCo4O10+δ Films with Engineered 2D Oxygen Vacancy Ordering

Advanced Functional Materials, EarlyView.
A giant magnetic coercivity and a vertical shift of hysteresis loops are demonstrated in Sr3YCo4O10+δ epitaxial films. The hard magnetic behavior originates from ferromagnetic spin bags stabilized within a long‐range ordered oxygen‐vacancy structure.
Yanbin Chen, Roger Guzman, Xiaomin Jia, Jialu Wu, Xing Xu, Li Sun, Jinbo Pan, Shixuan Du, Myung‐Hwan Whangbo, Wu Zhou, Jing Ma, Ce‐wen Nan, Chonglin Chen   +12 more
wiley   +1 more source

Eskisehir NAA archaeological and sediments dataset

, 2023
Neutron Activation Analysis (NAA) of 511 ceramics from 12 sites across the central Anatolia collected by the Eskişehir archaeological survey project as well as an excavated assemblage from Şar Höyük.
Grave, Peter
core   +1 more source

A Thermodynamic Model of Antiferroelectics and Its Application to Electric Field Induced Antiferroelectric‐Ferroelectric Transition in PbZrO3

Advanced Functional Materials, EarlyView.
A thermodynamic model that incorporates ferroelectric, antiferroelectric, and antiferrodistortive orders of PbZrO3${\rm PbZrO}_3$ is established and parameterized based on experimental measurements and first‐principles calculations. We derive a Clapeyron‐like equation for describing the temperature‐dependence of critical electric fields for the ...
Zhiyang Wang, Guodong Zhao, Aiden Ross, Long‐Qing Chen   +3 more
wiley   +1 more source

Neutron frequency windows and the protein dynamical transition [PDF]

, 2004
Proteins undergo an apparent dynamical transition on temperature variation that has been correlated with the onset of function. The transition in the mean-square displacement, ∆r2 , that is observed using a spectrometer or computer simulation, depends on
Becker, Torsten, Smith, Jeremy C., Finney, John L., Hayward, Jennifer A., Daniel, Roy M.   +4 more
core   +1 more source

Vector‐Field Control and Emergent Basal‐Plane Anisotropy of Magnetic Textures in Noncentrosymmetric (Fe0.63Ni0.3Pd0.07)3P

Advanced Functional Materials, EarlyView.
A field‐driven transition from chiral stripes to an achiral fan state is observed in a tetragonal magnet and linked to a temperature‐dependent rotation of the effective Dzyaloshinskii–Moriya interaction axis. This interplay generates pronounced in‐plane anisotropy and provides a new route for controlling chiral spin textures in noncentrosymmetric ...
Victor Ukleev, Oleg I. Utesov, Lorenzo Ubilla, Chen Luo, Radu‐Marius Abrudan, Peter Wild, Holger Kropf, Moritz Winter, Sebastian Schneider, Alexander Tahn, Bernd Rellinghaus, Tim A. Butcher, Simone Finizio, Sebastian Wintz, Markus Weigand, Max T. Birch, Yoshinori Tokura, Yasujiro Taguchi, Kosuke Karube, Florin Radu   +19 more
wiley   +1 more source