GUANGJUAN REN

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This work focused on the synthesis of high-activity TiO2/WO3 photocatalysts through an environmentally friendly and novel process. A high energy-efficient microwave assisted hydrothermal method was employed to prepare TiO2/WO3 from TiCl4 and Na2WO4 without using any organic species. The properties of the synthesized catalysts were characterized by XRD, TEM(More)
Previous studies have focused mainly on the accumulation of photosynthates and less on their distribution in sweet potato (Ipomoea batatas L.). In addition, the effect of photosynthate accumulation in root tubers on photosynthate distribution was not considered. Thus, a field experiment was carried out from May to October (2011 and 2012) to clarify the(More)
There is a growing interest in microstructured optical fibers (MOFs) for advanced sensors by infiltrating the air-holes with gas, liquid and polymers. The evanescent field overlap with infiltrations is enhanced compared with conventional fibers. The pure silica material is chemically and biologically inert, which well prevents the evaporation of water.(More)
We present a very efficient scheme to calculate the eigenvalue problem of the time-independent Schrödinger equation. The eigenvalue problem can be solved via an initial-value procedure of the time-dependent Schrödinger equation. First, the time evolution of the wave function is calculated by the finite-difference time-domain method. Then the eigenenergies(More)
Long interaction region coupler and racetrack resonator constructed by nanosize waveguide and nanosize optical fiber are investigated. Several components are investigated separately by using theoretical methods or simulation methods. For planar waveguide and coupler, analytical solution of parallel waveguides pair is investigated, by solving Maxwell(More)
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