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Isotope spectroscopy [PDF]

open access: yesAstronomische Nachrichten, 2014
AbstractThe measurement of isotopic ratios provides a privileged insight both into nucleosynthesis and into the mechanisms operating in stellar envelopes, such as gravitational settling. In this article, we give a few examples of how isotopic ratios can be determined from high‐resolution, high‐quality stellar spectra.
Caffau, E.   +6 more
openaire   +3 more sources

Potential Use of Gamma-Irradiated Ethnic Ready-to-Eat Foods to Improve the Nutritional Status of Landslide Victims

open access: yesFoods, 2016
The safety and high quality of ethnic ready-to-eat foods as a source of nourishment and food supplies chain to the remote areas become particularly important.
Zubaidah Irawati Koenari   +6 more
doaj   +1 more source

Recyclable Robust Plastic Scintillation Resin Achieving the Exceptional Separation and Detection of Technetium‐99

open access: yesAdvanced Science
Rapid detection and absorption of 99TcO4⁻ contamination in the environment are critical due to its high radioactivity, long half‐life, and significant environmental mobility.
Tonghuan Liu   +10 more
doaj   +1 more source

Emissions of ammonia following glyphosate application on Urochloa decumbens

open access: yesPlant, Soil and Environment, 2016
This work was carried out with the objective of evaluating the ammonium (NH4+) levels and emissions of ammonia (NH3) after glyphosate application on signal grass (Urochloa decumbens).
V. Damin   +3 more
doaj   +1 more source

Simulation and Comparative Study of Interaction Between Ray and Medium in Borehole Based on FLUKA Software

open access: yesCejing jishu
In nuclear logging, Monte Carlo simulation method is widely employed across various stages from instrument development and design to data interpretation.
LIU Juntao   +6 more
doaj   +1 more source

A Formation Inversion Algorithm Based on Collaborative Fuzzy Gradient Neural Dynamics for Natural Gamma Logging While Drilling

open access: yesCAAI Transactions on Intelligence Technology
A formation inversion algorithm with real‐time performance and accuracy is crucial for natural gamma logging while drilling (LWD). However, traditional inversion algorithms are often limited by high computational resource consumption and insufficient ...
Juntao Liu   +4 more
doaj   +1 more source

TiO2 BEADS FOR PHOTOCATALYTIC DEGRADATION OF HUMIC ACID IN PEAT WATER

open access: yesIndonesian Journal of Chemistry, 2011
Degradation of humic acid in aqueous solution containing TiO2 coated on ceramics beads under irradiation of 254 nm UV light has been conducted in batch reactor.
Winarti Andayani, Agustin N M Bagyo
doaj   +1 more source

Isotope venography

open access: yesJournal of British Surgery, 1973
Abstract An isotope method of venography using 99mTc as pertechnetate (or MAA technetium) and a gamma camera is described. Initial results are encouraging. Good visualization of the major venous channels in the lower limbs and pelvis can easily be obtained.
J H, Highman, E, O'Sullivan, E, Thomas
openaire   +2 more sources

On-site dissolved-gas analysis and electric-resistivity tomography as new tools to trace CO2 mineral sequestration in aquifers

open access: yesScientific Reports
Mineral sequestration of CO2 in basalt aquifers is a promising pathway for permanent carbon storage. Within the DemoUpStorage R&D project, CO2 was dissolved in saline groundwater and co-injected with He as an inert tracer into a deep basalt aquifer at a ...
Matthias S. Brennwald   +6 more
doaj   +1 more source

Radiosynovectomy of Painful Synovitis of Knee Joints Due to Rheumatoid Arthritis by Intra-Articular Administration of 177 Lu-Labeled Hydroxyapatite Particulates: First Human Study and Initial Indian Experience

open access: yesWorld Journal of Nuclear Medicine, 2015
The aim of this study is to assess the effectiveness of Radiosynovectomy (RSV) using 177 Lu-labeled hydroxyapatite ( 177 Lu-HA) in the treatment of painful synovitis and recurrent joint effusion of knee joints in rheumatoid arthritis (RA).
Ajit Shinto   +9 more
doaj   +1 more source

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