Goethite is a commonly found iron (hydr)oxides that is known to significantly influence on the transport and fate of arsenic in soil and sediment. Although the presence of defects in goethite has been proved, the underlying impact of these defects in goethite on arsenic immobilization remains...

Purpose Supernumerary robotic limbs (SRLs) are a new type of wearable robot, which improve the user’s operating and perceive the user’s environment by extra robotic limbs. There are some literature reviews about the SRLs’ key technology and development trend, but the design of SRLs has not...