Results 11 to 20 of about 2,855,411 (314)

Prompt-gamma activation analysis [PDF]

open access: yesJournal of Research of the National Institute of Standards and Technology, 1993
A permanent, full-time instrument for prompt-gamma activation analysis is nearing completion as part of the Cold Neutron Research Facility (CNRF). The design of the analytical system has been optimized for high gamma detection efficiency and low background, particularly for hydrogen. Because of the purity of the neutron beam, shielding requirements are
Lindstrom, R.M.
openaire   +3 more sources

Latent Profile Analysis for Patient Activation in Patients with Essential Hypertension [PDF]

open access: yesPatient Preference and Adherence
Qingqing Wang,1 Xiao Xin,2 Xianhua Li1,3 1School of Nursing, Shanghai Jiao Tong University, School of Nursing, Shanghai, People’s Republic of China; 2Department of Oncology, Ruijin Hospital, Shanghai Jiao Tong University, School of Nursing, Shanghai ...
Wang Q, Xin X, Li X
doaj   +2 more sources

Characterization of PM10 Sampled on the Top of a Former Mining Tower by the High-Volume Wind Direction-Dependent Sampler Using INNA

open access: yesAtmosphere, 2020
The PM10 concentrations in the studied region (Ostravsko-karvinská agglomeration, Czech Republic) exceed air pollution limit values in the long-term and pose a significant problem for human health, quality of life and the environment.
Irena Pavlíková   +5 more
doaj   +1 more source

The Influence of Manganese on Growth Processes of Hordeum L. (Poaceae) Seedlings

open access: yesPlants, 2021
Manganese, as one of the xenobionts, belongs to the group of heavy metals, which, in high concentrations, can negatively affect the development of plants. In small concentrations, it is necessary for plants for normal growth and development.
Kirill Tkachenko   +2 more
doaj   +1 more source

Factors conditioning the content of chemical elements in soil and mosses in Armenia

open access: yesJournal of Trace Elements and Minerals, 2022
In this research, chemical element contents were determined using the Epithermal neutron activation analysis (Cr, V, Ti, Sr, Rb, As, Zn, Co, Fe, Mn and Ba) and atomic-absorption spectrometry (Cu and Pb) for mosses and X-ray fluorescence spectroscopy (Cr,
Gevorg Tepanosyan   +3 more
doaj   +1 more source

Elemental composition of moss and lichen species in eastern Serbia [PDF]

open access: yesNuclear Technology and Radiation Protection, 2018
Instrumental neutron activation analysis is used to determine a content of 47 elements (Na, Mg, Al, Cl, K, Ca, Sc, Ti, V, Cr, Mn, Fe, Ni, Co, Cu, Zn, As, Se, Br, Rb, Sr, Zr, Mo, Ag, Cd, Sb, I, Ba, Cs, La, Ce, Nd, Sm, Eu, Gd, Tb, Dy, Tm, Yb, Lu ...
Ajtić Jelena V.   +5 more
doaj   +1 more source

Instrumental neutron activation analysis of an enriched 28Si single-crystal [PDF]

open access: yes, 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

Use of Instrumental Neutron Activation Analysis to investigate the distribution of trace elements among subsamples of solid materials [PDF]

open access: yes, 2014
The results of analytical measurements performed with solid-sampling techniques are affected by the distribution of the analytes within the matrix. The effect becomes significant in the case of determination of trace elements in small subsamples.
S. Richter   +11 more
core   +1 more source

Seaweeds as source of the essential elements

open access: yesBrazilian Journal of Radiation Sciences, 2019
Overtime seaweeds have been used as a food mainly due to their high nutritional value. This type of food is considered as functional food and contributes to the nutritional human requirements, being beneficial to human health.
Caroline Rodrigues Albuquerque   +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 [PDF]

open access: yes, 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   +11 more
core   +1 more source

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