Results 31 to 40 of about 16,232 (191)

Reflection asymmetric relativistic mean field approach and its application to the octupole deformed nucleus $^{226}$Ra

open access: yes, 2007
A Reflection ASymmetric Relativistic Mean Field (RAS-RMF) approach is developed by expanding the equations of motion for both the nucleons and the mesons on the eigenfunctions of the two-center harmonic-oscillator potential.
Geng Li-Sheng   +4 more
core   +1 more source

An excess Ra-226 chronology for deep-sea sediments from Saanich Inlet, British Columbia [PDF]

open access: yes, 2007
To further explore the efficacy of 226Ra(excess) dating for deep-sea sediments, previously dated varve sediments from Saanich Inlet were investigated.
Anderson   +71 more
core   +1 more source

228Ra e 226Ra numa área anômala de Pocinhos-Paraíba

open access: yesBrazilian Journal of Radiation Sciences, 2018
No final dos anos 70, a antiga NUCLEBRAS realizou estudos geológicos no município paraibano de Pocinhos, em um local onde foram encontradas anomalias radioativas.
Cleomacio Miguel da Silva
doaj   +1 more source

The activity concentrations of 40K, 226Ra, 232Th, 238U and 7Be in moss from spas in eastern Serbia in the period 2000-2012 [PDF]

open access: yesArchives of Biological Sciences, 2014
In this work we present the activity concentrations of natural radionuclides 40K, 226Ra, 232Th, 238U and 7Be in mosses. One hundred and sixty-seven moss samples were collected between 2001 and 2012 from the territory of the Sokobanja, Banja ...
Čučulović Ana   +2 more
doaj   +1 more source

Geochemical distributions of natural radionuclides in surface soils and sediments impacted by lead-zinc mining activity

open access: yesEcotoxicology and Environmental Safety, 2023
This study investigated the distribution features of uranium-238 (238U), radium-226 (226Ra), thorium-232 (232Th), and potassium-40 (40K) and evaluated the associated environmental radiological hazards of the topsoil and river sediments in the Jinding ...
Qiugui Wang   +8 more
doaj   +1 more source

Comparison of carbon and opal export rates between summer and spring bloom periods in the region of the Antarctic Polar Front, SE Atlantic. [PDF]

open access: yes, 2002
Although primary production in the Antarctic Circumpolar Current is not above the world average and carbon burial rates are low, 70% of the world's opal burial occurs in this zone and it has been suggested that blooms of large diatoms are responsible for
Andrews, I.   +4 more
core   +1 more source

228Ra e 226Ra em alimentos industrializados consumidos por vacas leiteiras no estado de Pernambuco

open access: yesBrazilian Journal of Radiation Sciences, 2018
A alimentação de vacas leiteiras, além de ser uma questão de produtividade, pode se constituir um problema de segurança alimentar. Os produtores de leite de vaca do estado de Pernambuco estão cada vez mais empenhados na busca de novas fontes de alimentos
Cleomacio Miguel da Silva
doaj   +1 more source

Closing the Global Marine 226Ra Budget Reveals the Biological Pump as a Dominant Removal Flux in the Upper Ocean

open access: yesGeophysical Research Letters, 2022
Radium isotopes are powerful proxies in oceanography and hydrology. Radium mass balance models, including assessments of submarine groundwater discharge (SGD), often overlook particle scavenging (PS) as a pathway for dissolved radium removal from the ...
Bochao Xu   +8 more
doaj   +1 more source

Mass distributions for nuclear disintegration from fission to evaporation

open access: yes, 2007
By a proper choice of the excitation energy per nucleon we analyze the mass distributions of the nuclear fragmentation at various excitation energies.
Botvina A S   +6 more
core   +1 more source

Sedimentary processes in the Thau Lagoon (France): From seasonal to century time scales [PDF]

open access: yes, 2007
As a part of the MICROBENT programme, an investigation of the sedimentation framework was carried out at the water-sediment interface in the Thau Lagoon (French Mediterranean coast). Two main sites, C4 in the middle of the lagoon and C5 near oyster farms,
Gilbert, Franck   +6 more
core   +4 more sources

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