Results 91 to 100 of about 1,449,742 (274)

Obtaining 228ra (MsTh 1) from thorium nitrate.

open access: yes, 1981
135 kilograms of thorium nitrate purified and recrystallised in 1958 have been treated to extract 228Ra in radioactive equilibrium. Most of the thorium was eliminated by solvent extraction (T.B.P.) and final purification was by chromatography (Dowex 50 W
Arnoux, M, Jerment, J, Gizon, A
core  

Enhancing Amphibious Flipper‐Based Locomotion Through Terrain‐Dependent Bayesian Optimization of Central Pattern Generator Control

open access: yesAdvanced Robotics Research, EarlyView.
A sea turtle‐inspired amphibious robot uses simulation‐guided optimization to adapt its flipper coordination to different environments. Sensitivity analysis and multiobjective Bayesian optimization identify terrain‐dependent controllers that are validated on hardware.
Nnamdi C. Chikere, Yasemin Ozkan‐Aydin
wiley   +1 more source

Thorium-apans complex: a spectrophotometric study.

open access: yes, 1958
The analytically useful complex formed by thorium and APANS [1-(o-arsonophenylazo)-2-naphthol-3:6 disulphonic acid] has been studied by a spectrophotometric method.
Palmer, AR
core  

Recovery From Alcohol and Other Drug Problems in the U.S. Population: Prevalence, Pathways, and Predictors [PDF]

open access: yes, 2018
The concept of "recovery" has become the organizing paradigm in many middle and high income countries globally with a goal of orienting services in cost effective ways to help sufferers achieve and maintain long term remission. Despite this focus, little
Hoeppner, Bettina   +5 more
core   +1 more source

Robotics in Ionizing Radiation Environments: Vulnerabilities, Hardening, and Future Directions

open access: yesAdvanced Robotics Research, EarlyView.
Radiation exposure causes cumulative degradation in robotic sensors, actuators, and electronic logic, often leading to undetected failures. This study maps component vulnerabilities, evaluates hardening and shielding strategies, and identifies testing gaps that must be addressed to enable next‐generation radiation‐tolerant robotic systems.
Francis A. K. Djirackor   +4 more
wiley   +1 more source

Iron, aluminum, and thorium impurity removal from a rare earth element pregnant leach solution using magnesium carbonate

open access: yesScientific Reports
This study investigates the selective precipitation of aluminum, iron, and thorium from a rare earth element (REE)-containing pregnant leach solution (PLS) using magnesium carbonate (MgCO3) as a precipitant.
Sicheng Li   +3 more
doaj   +1 more source

Recovery of uranium, thorium and zirconium from allanite by extraction chromatography using impregnated chromosorb

open access: yesWater Resources and Industry, 2013
AbstractChromosorb 102 impregnated with Cyanex 923 was used as a stationary phase in the extraction chromatographic separation of lanthanides, U(VI), Th(IV) and Zr(IV). Batch studies were carried out to investigate the uptake behaviour of these metal ions, along with few other metal ions.
Gupta, Bina   +2 more
openaire   +1 more source

Eating Disorder Recovery: Fostering an Inclusive Culture [PDF]

open access: yes, 2018
Eating disorder (ED) recovery is often difficult to define, which may leave those offering recovery support feeling lost and discouraged when determining ED services in their Collegiate Recovery Program (CRP).
Monsour, Diana L, Henley, Emmy L
core   +1 more source

Solid Harmonic Wavelet Bispectrum for Image Analysis

open access: yesAdvanced Science, EarlyView.
The Solid Harmonic Wavelet Bispectrum (SHWB), a rotation‐ and translation‐invariant descriptor that captures higher‐order (phase) correlations in signals, is introduced. Combining wavelet scattering, bispectral analysis, and group theory, SHWB achieves interpretable, data‐efficient representations and demonstrates competitive performance across texture,
Alex Brown   +3 more
wiley   +1 more source

Microscale Mapping of Fiber Strain and Damage in Composite Wrinkled Laminates Using Computed Tomography Assisted Wide‐Angle X‐Ray Scattering

open access: yesAdvanced Science, EarlyView.
This study combines full‐field tomography with diffraction mapping to quantify radial (ε002$\varepsilon _{002}$) and axial (ε100$\varepsilon _{100}$) lattice strain in wrinkled carbon‐fiber specimens for the first time. Radial microstrain gradients (−14.5 µεMPa$\varepsilon \mathrm{MPa}$−1) are found to signal damage‐prone zones ahead of failure, which ...
Hoang Minh Luong   +7 more
wiley   +1 more source

Home - About - Disclaimer - Privacy