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In this paper, corn grits, glutinous rice and grits and glutinous rice mixture were fermented with Angel Rhizopus Sp. Results showed that the fermentation performance of glutinous rice was better than that of the grits, but it was similar to that of grits and glutinous rice mixture (6:4). Fermentation time had an effect on the flavor quality of the fermented product. At 28°C, the ratio of producing acidity began to slow down at 24 h while reducing sugar content continuously increased till 60 h. At 40~48 h, the flavor of the fermented product tasted best. By using HP-SPME-GC/MS, 24 kinds of volatile compounds from the products fermented for 48h were identified, among them there were 12 kinds of alkane, 2 kinds of alkene, 4 kinds of alcohols, 1 kind of acids, 4 kinds of esters and 1 kind of ketone respectively, 3-methyl-1-butanol, ethanol and tetradecane, as the main volatile compounds in 3 kinds of fermented products,, accounted for over 80% the total peak area. Alcohols, acids, esters and ketone are the main compounds to form the special flavor of rice wine.

Zirconia fiber separator is one of the important materials of nickel-hydrogen battery .In this paper,we studied the factors affecting the properties of zirconia fiber separator used as nickel-hydrogen battery separator, which prepared by precursor process, including the precursor fibers,fibrous cloths,concentration of the precursor solution and the heating rate before 500oC.The results show that, because the gully structure copied the precursor fibers, as well as smaller diameter of the fiber has larger specific surface area, so the zirconia cloth has the higher absorption capacity and retention ability of alkal. In the same way as woven, the low fabric areal density is beneficial to the absorption ability. When the concentration of the precursor solution is 1.36g/ml, the properties of the zirconia fiber separator is the best. If the heating rate is too fast, will cause a decrease in performance of zirconia fiber separator. The diameter of the fibers in the zirconia fiber sepatator is about 4-5μm, the main phase of the separator is tetragonal zirconia.

Cholesteric liquid crystals elastomers have been extensively studied during the last two decades. They showed Bragg-reflection in visible, Infrared and even UV wavelength Range and a particular circular polarization. Their special helical structure and the adjustment of pitch made them suitable for using as optical thin films. In this study, two kinds of mesogenic monomers undecylenate cholesteryl ester (M1) and p-phenylene di-4-(allyloxyl) benzoate (M2) were synthesized. Then the two monomers were fixed onto poly- (methylsiloxane) backbone by grafting polymerization using Dicyclopentadienylplatinum (II) Chloride as catalyst. A series of side-chain polymers with different monomer densities produced by the reaction of hydropolysiloxane and M1/M2with different molar ratios were obtained. The synthesized polymers were characterized by IR, H1NMR and GPC. The mesophases were characterized by using differential scanning calorimetry (DSC), polarizing optical microscopy (POM).

In this study, a triphenylene-based discotic liquid crystal 3,6-dicarbethoxy-2,7,10,11-tetra-pentyloxytriphenylene was synthesized. The chemical structure was characterized by FTIR, 1HNMR.The mesophases of the material synthesized here was characterized by using polarizing optical microscopy (POM), differential scanning calorimetry (DSC). It was found that the compound displayed columnar phase during cooling at 164.7 °C and the columnar phase can be preserved even at room temperature. The charge transportation properties of the compound were measured by using time-of-flight method.

A novel triphenylene-based discotic liquid crystal compound 2-(8-bromooctanoic acid ester)-3,6,7,10,11-penta-pentyloxytriphenylene was synthesized in this study.The chemical structure of the compound was characterized by1HNMR spectra, FT-IR spectra and we confirmed its structure. The mesophases were investigated by using different scanning calorimetry DSC and polarizing optical microscopy POM, the results showed that the target product had Liquid crystal properties and the temperature range of 90-101 °C, and showed a clear columnar phase. The carrier transport mobility was measured using time-of-flight TOF method, μ=1.09*10-2cm2V-1s-1.

A triphenylene-based discotic compound 2,3,6,7,10,11-hexaheptylcar-boxyltriphenylene was synthesized. The structure of the compound was determined by1HNMR and FT-IR spectrum and its mesomorphism was clarified by DSC and POM methods. The carrier mobility was measured using time-of-flight method and has a value of 1.2 × 10-1cm2V-1s-1.

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