Results 61 to 70 of about 124,044 (295)

natural radioactivity

open access: yes, 2014
Citation: 'natural radioactivity' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.N04092 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
openaire   +1 more source

Radiation‐Resistant Kr‐Selective MOF With Record Kr/Xe Selectivity at Elevated Pressure

open access: yesAdvanced Science, EarlyView.
ABSTRACT The separation of Kr/Xe from spent nuclear fuel off‐gas is critical, yet most current adsorbents exhibit Xe‐Kr co‐adsorption under elevated pressures, posing challenges for industrial pressure swing adsorption processes. Herein, we present and evaluate a metal‐organic framework, CALF‐20M‐w, engineered for molecular sieving separation of Kr/Xe ...
Qihang Tian   +6 more
wiley   +1 more source

Estimation of natural radioactivity levels in soil samples from the Navalgund region of Dharwad district, Karnataka, India

open access: yesRadiation Protection and Environment
This study aims to estimate the natural radioactivity levels in soil samples from the Navalgund region of Dharwad District, Karnataka. The concentrations of naturally occurring radionuclides 238U, 232Th, and ⁴⁰K were measured using gamma spectroscopy ...
Jayashri B. Mutagar   +2 more
doaj   +1 more source

Students' Beliefs About the Role of Atoms in Radioactive Decay and Half-life [PDF]

open access: yes, 2007
Provides pedagogical insight concerning learners' pre-conceptions and misconceptions about radioactive decay The resource being annotated is: http://www.dlese.org/dds/catalog_ESA-000-000-000-035 ...
Lamont-Doherty Earth Observatory, Columbia University
core  

Highly Efficient Extraction of 212 Pb/212Bi from the Decay Chain of 232Th‐Based on Anion Exchange in Bromide Medium

open access: yesAdvanced Science, EarlyView.
This work provides an effective strategy for selectively extracting 212Pb and 212Bi from the decay chain of 232Th as well as its mechanism illustration. Using the novel strategy, 2.07 MBq of 212Pb is successfully separated from 232Th and its daughters, which enables the supply of 212Pb/212Bi directly from the abundant natural thorium resource to be ...
Lifeng Chen   +11 more
wiley   +1 more source

Enzyme‐Activated MRI for In Vivo Glucose Imaging via a Biodegradable Chromium Nanoprobe

open access: yesAdvanced Science, EarlyView.
Enzyme‐activated MRI (eaMRI) using a biodegradable CrGOx@Lip nanoprobe enables glucose‐specific imaging in vivo. GOx catalyzes glucose oxidation, triggering in situ formation of paramagnetic chromium gluconate and amplifying T1. This radiation‐free strategy maps tumor glucose uptake via the Warburg‐effect, quantifies hepatic glucose accumulation in ...
Yan Xu   +6 more
wiley   +1 more source

Natural radioactivity of Pamir mineral waters (Tajikistan) [PDF]

open access: yesE3S Web of Conferences
In the present article, radon and uranium concentrations of nineteen occurrences of mineral waters of Pamir are considered in conjunction with geological conditions and physical and chemical characteristics.
Chelnokov George   +3 more
doaj   +1 more source

222Rn daughters influence on scaler mode of the ARGO-YBJ detector

open access: yes, 2011
The ARGO-YBJ experiment is a full coverage air shower array; its lowest energy threshold is reached using the "scaler mode technique". Working in this mode, the signals generated by any particle hitting each cluster are put in coincidence every 150 ns ...
Bolognino, Irene   +6 more
core   +1 more source

A FAP‐Targeted SMDC Platform Enables Synergistic Radionuclide–Chemotherapy with PET‐Guided Evaluation

open access: yesAdvanced Science, EarlyView.
A fibroblast activation protein (FAP)‐targeted small molecule–drug conjugate (SMDC) platform is developed to integrate PET imaging with synergistic radionuclide–chemotherapy. Linker chemistry governs stability, exposure, and tolerability, with the VC linker providing superior in vivo performance.
Ruitao Yang   +6 more
wiley   +1 more source

Natural Radioactivity in Food Stuff

open access: yesIbn Al-Haitham Journal for Pure and Applied Sciences, 2019
The purpose of this research is to study the natural radioisotopes in different Iraqi food as well as various fission products emitted during nuclear accidents worldwide.
A.M. AL-Jumaily, K. Abdul Jabar
doaj  

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