High-precision ground simulator for laser tracking of gravity satellite.

Inter-satellite laser ranging is a key technology to improve the measurement precision of gravity satellites in future missions. However, it requires a stable laser link between satellites, which would be affected by external disturbances in space and internal couplings of satellite components. This paper presents a dynamic model to describe the tracking error and proposes a high-precision satellite simulator for the validation of inter-satellite laser tracking.

Research progress of iron metabolism in retinal diseases.

Background: Retinal diseases can lead to severe visual impairment and even blindness, but current treatments are limited. For precise targeted therapy, the pathophysiological mechanisms of the diseases still need to be further explored. Iron serves an essential role in many biological activities and helps maintain the function and morphology of the retina.

Bias Stability Investigation of a Triaxial Navigation-Compatible Accelerometer with an Electrostatic Spring.

The bias stability performance of accelerometers is essential for an inertial navigation system. The traditional pendulous accelerometer usually has a flexible connection structure, which could limit the long-term bias stability. Here, based on the main technologies employed in previous space missions of our group, we developed a terrestrial triaxial navigation-compatible accelerometer.

In Situ Synthesis of α-FeO/FeO Heterojunction Photoanode via Fast Flame Annealing for Enhanced Charge Separation and Water Oxidation.

Hematite (α-FeO) is a promising photoanode material in photoelectrochemical (PEC) water splitting. To further improve the catalytic activity, a reasonable construction of heterojunction and surface engineering can effectively improve the photoanode PEC water-splitting performance via improving bulk carrier transport and interfacial charge-transfer efficiency. As FeO has an excellent conductivity and a suitable energy band position, α-FeO/FeO heterojunction can be an ideal structure to improve the activity of α-FeO.

Structural characterization of low molecular weight polysaccharide from Astragalus membranaceus and its immunologic enhancement in recombinant protein vaccine against systemic candidiasis.

Structure and immunologic enhancement of low molecular weight polysaccharide (LMW-ASP) isolated from the root of Astragalus membranaceus (Fisch) Bge. Were detected in recombinant protein vaccine. Structure analysis of LMW-ASP revealed that LMW-ASP (Mw=5.