Results 21 to 30 of about 1,331 (240)
Toxics, 2022 In order to realize sustainable development, it is beneficial to explore an appropriate process to recover the radionuclides contained in tantalum-niobium slag.
Min Huang +6 more
doaj +1 more source
Determination of Optimum Process Conditions for Sulfuric Acid Dissolution of Zarigan Thorium-Uranium Ore Using Taguchi Method [PDF]
مجله علوم و فنون هستهای, 2012 This paper deals with the study of digestion and leaching process effectiveness in thorium minerals processing, and determining the optimum process conditions for acidic leaching of thorium- uranium ores in Zarigan region to dissolve thorium. To do this,
S A. Milani, B Rezai, A Emami
doaj
Resistivity recovery of neutron-irradiated and cold-worked thorium [PDF]
, 1977 Results from a study of the resistivity recovery of neutron-irradiated and cold-worked thorium on isochronal annealing, activation energies, and isothermal annealing and kinetics are discussed. The nature and extent of radiation effects on the resistivity of thorium at 80/sup 0/K, interpretation of stage II recovery above 80/sup 0/K, and activation ...
openaire +4 more sources
Sensors, 2003 Preparation, characterization, and application of a novel coated graphite rod thorium selective electrode based on thorium 8-hydroxyquinolate [thorium oxinate, Th(C9H6NO)4.2H2O] complex ionophore as a sensing material, dioctylphthalate (DOP) as a solvent
Abeer M. El-Saied +2 more
doaj +1 more source
Investigation of Thorium Preconcentration Process on 5th Anomaly of the Saghand Ore and its Optimization Using Statistical Method [PDF]
مجله علوم و فنون هستهای, 2014 The Humphrey spiral is one of the mineral concentration techniques based on gravity separation. In various mineral processes, the characteristics of concentration performance are indicated by the grade and recovery factors.
Alireza Khanchi +4 more
doaj
Sorption of Uranium(VI) and Thorium(IV) by Jordanian Bentonite
Journal of Chemistry, 2013 Purification of raw bentonite was done to remove quartz. This includes mixing the raw bentonite with water and then centrifuge it at 750 rpm; this process is repeated until white purified bentonite is obtained.
Fawwaz I. Khalili +2 more
doaj +1 more source
Simultaneously Recovery of Thorium and Tungsten by Hybrid Electrolysis–Nanofiltration Processes
, 2023 The recovery and recycling of metals that generate toxic ions in the environment is of particular importance, especially when these are tungsten and, in particular, thorium. The radioactive element thorium has unexpectedly accessible domestic applications (filaments of light bulbs and electronic tubes, welding electrodes, working alloys containing ...
Geani Teodor Man +7 more
openaire +1 more source
Claustrum Involvement in New Onset Refractory Status Epilepticus: A Systematic Review
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT The claustrum sign is a distinctive neuroimaging finding characterized by bilateral T2/FLAIR hyperintensity of the claustrum, one of the most interconnected regions of the human brain. It was first described in new‐onset refractory status epilepticus (NORSE) and febrile infection–related epilepsy syndrome (FIRES).
Margherita Burani +5 more
wiley +1 more source
Yankuang ceshi, 2019 BACKGROUND Simultaneous determination of thorium and potassium in geological samples can provide an important basis for exploration of radioactive mineral resources and evaluation of the natural radioactive ecological environment.
QIN Xiao-li +3 more
doaj +1 more source
Arthritis Care &Research, EarlyView.Objective We aimed to estimate the prevalence and cumulative incidence of hydroxychloroquine retinopathy (HCQ‐R) and its risk factors among patients receiving long‐term HCQ with rheumatic diseases through a systematic review and meta‐analysis of observational studies that used spectral‐domain optical coherence tomography (SD‐OCT) for screening ...
Narsis Daftarian +4 more
wiley +1 more source