Secondary components of W UMa-type contact binaries have two special properties, excess in radius and luminosity. Based on these two properties, PhD student ZHANG Xudong, Prof. QIAN Shengbang, and Dr. LIAO Wenping from Yunnan Observatories of the Chinese Academy of Sciences revealed the different evolutionary pathways for A- and W-subtype contact binaries. Overluminosity in A-subtype is because the secondary components are evolved from initial more massive stars, while in W-subtype it is due to energy transfer.
Thermoelectric material is one kind of functional materials which can directly convert heat into electricity. Understanding the factors that affect the thermal conductivity is a topic of great scientific interest, which will guide to reduce the lattice thermal conductivity or search materials with low lattice thermal conductivity. Recently, researchers from Institute of Solid State Physics, Hefei Institutes of Physical Science, constructed two concise parameters in characterization of thermal conductivity of half-Heusler compounds.
Currently, the doping of transition metal ions in phosphate glasses has attracted wide attention since the transition metal ions can significantly modify electrical conductivity and optical properties of glasses. The addition of alkali halide might further promote the mobility of ions. Most recently, a research team led by Shanghai Institute of Optics and Fine Mechanics has investigated the structures of MoO3-doped phosphate ionic conducting glasses in detail using multiple solid-state NMR technologies.
Recently, a team of Chinese scientists and their collaborators at the Institute of Solid State Physics of the Hefei Institutes of Physical Science examined polyamorphism in the molecular substance SO2. While exploring phase transition in dense SO2, they found pressure-induced amorphization in dense sulfur SO2 and a reversible pressure-induced structural transformation between the molecular amorphous and polymeric amorphous forms of SO2.
Dr. BI Yi and his collaborators from Yunnan observatories of the Chinese Academy of Sciences revealed that Alfvénic wave energy communicated by the descending knots in the solar prominence may well contribute in a nonnegligible way to the local heating of the surrounding corona.
Chinese scientists led by WU Zhengyan from Hefei Institutes of Physical Science reported their discovery that a novel chemical karrikins could significantly enhance both drought and salt resistance of Sapium sebiferum which is one kind of important oil plant..
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