Results 31 to 40 of about 16,298 (289)

Properties of the ground $^3$F$_2$ state and the excited $^3$P$_0$ state of atomic thorium in cold collisions with $^3$He

, 2013
We measure inelastic collisional cross sections for the ground $^3$F$_2$ state and the excited $^3$P$_0$ state of atomic thorium in cold collisions with $^3$He.
Au, Yat Shan, Connolly, Colin B., Doyle, John M., Ketterle, Wolfgang   +3 more
core   +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, Hasan Sedighi, Sheida Ansar, Javad Fasihi Ramandi, Iraj Akbari   +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, Najla'a H. Salameh, Mona M. Shaybe   +2 more
doaj   +1 more source

Helium Shortage 4.0: How to Face the Problem Through Its Energy-efficient Recovery from Natural Gas

Chemical Engineering Transactions, 2023
Helium is an extraordinary commodity. Its many remarkable properties, i.e., lightness, inertness, small atomic size, low liquefaction temperature, make this element play a crucial role in advanced technological sectors.
Elvira Spatolisano, Laura Annamaria Pellegrini   +1 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, Paul Constantin Albu, Aurelia Cristina Nechifor, Alexandra Raluca Grosu, Diana Ionela Popescu (Stegarus), Vlad-Alexandru Grosu, Virgil Emanuel Marinescu, Gheorghe Nechifor   +7 more
openaire   +1 more source

Determination of Thorium and Potassium Oxide in Geological Samples by Inductively Coupled Plasma-Optical Emission Spectrometry

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, TIAN Gui, LI Chao-chang, JIANG Zhi-lin   +3 more
doaj   +1 more source

New limits on $2\varepsilon$, $\varepsilon\beta^+$ and $2\beta^+$ decay of $^{136}$Ce and $^{138}$Ce with deeply purified cerium sample

, 2017
A search for double electron capture ($2\varepsilon$), electron capture with positron emission ($\varepsilon\beta^+$), and double positron emission $2\beta^+$) in $^{136}$Ce and $^{138}$Ce was realized with a 465 cm$^3$ ultra-low background HP Ge $\gamma$
Belli, P., Bernabei, R., Boiko, R. S., Cappella, F., Cerulli, R., Danevich, F. A., Incicchitti, A., Kropivyansky, B. N., Laubenstein, M., Mokina, V. M., Polischuk, O. G., Tretyak, V. I.   +11 more
core   +1 more source

Risk of Retinopathy Associated with Long‐Term Use of Hydroxychloroquine in Patients with Rheumatic Diseases: A Systematic Review and Meta‐Analysis

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, Chloe Yue, Steve D Levasseur, Hui Xie, J. Antonio Avina‐Zubieta   +4 more
wiley   +1 more source

A Novel Phosphonated Polyethyleneimine Composite for the Removal of Thorium(iv) and Uranium(vi) Ions from Aqueous Solutions: Kinetic, Isotherm, and Thermodynamic Studies [PDF]

Iranian Journal of Chemistry & Chemical Engineering
Hyperbranched polymers are one of the most promising, cost-effective, and important materials sorbents for wastewater treatment. In this study, a newly synthesized hyperbranched Polyethylene-Methylene Phosphine Oxide (PEMPO) was characterized and applied
Wissam Amina Miloudi, Khalil Oukebdane, Omar Abderrahim, Mohammed Amine Didi   +3 more
doaj   +1 more source

Rafting of Ni‐Based Superalloys Under Multiaxial Load as Understood by Phase‐Field Simulations and Critical Experiments

Advanced Engineering Materials, EarlyView.
Phase‐field simulations coupled with dislocation‐density‐based crystal plasticity modeling reproduce γ′ rafting behavior in single‐crystal Ni‐based superalloys under varied loading conditions. The model captures both macroscopic creep and microscopic morphology evolution, with results matching high‐temperature creep experiments.
Micheal Younan, David Bürger, Gunther Eggeler, Oleg Shchyglo, Ingo Steinbach, Muhammad Adil Ali   +5 more
wiley   +1 more source