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A isoporous brominated poly (phenylene oxide) (BPPO) microfiltration membrane system, fabricated by figure breath method, was demonstrated for the effective removal of impurity from contaminated water. The water permeation flux of BPPO membrane is higher. Such ordered isoporous membranes can also be applied in other size-based separation systems, enabling new opportunities in bioseparation and biosensors.

The neutral silicone glass sealant was prepared and the mechanical performance of this silicone glass sealant was researched in this paper. The recipe of neutral silicone glass sealant was studied. Besides, the influence of different cross-linking agents was researched; meanwhile, the effect of plasticizer and reinforcing agent on the mechanical properties of the material was studied. To obtain the best properties of neutral silicone glass sealant, the recipe should be taken further efforts to optimize.

Beet necrotic yellow vein virus coat protein (BNYVV CP) gene cloned from BNYVV in Inner Mongolia of China was transferred to sugar beet explants using agrobacterium tumefaciens-mediated method. Transgenic regeneration shoots were induced from petioles and cotyledons tissues of sugar beet. Three sugar beet lines that were fit for genetic transformation experiment were screened, which were Sumfull8-1, Sumfull8-3 and 9718. The experiment results showed that plant regeneration frequency was influenced by many factors, which include hormone compositions and concentration in shoots regeneration medium, culture conditions, sugar beet genotype, original explant types and culture methods. Influence factors of transgenic shoot regeneration frequency for sugar beet explants were discussed in this paper. Efficient genetic transformation system and transgenic shoots regeneration system of sugar beet were established.

New compounds of sodium samarium titanate Na0.5Sm4.5Ti4O15and sodium europium titanate Na0.5Eu4.5Ti4O15were synthesized successfully by solid state reaction at 1300 oC and 1200 oC, respectively. The lattice parameters of Na0.5Sm4.5Ti4O15and Na0.5Eu4.5Ti4O15were determined at ordinary temperature by using X-ray powder diffraction method. Their Lattice types were determined, and their patterns were indexed. Polycrystalline X-ray diffraction data of sodium samarium titanate were listed. Differences of their crystal structures were analyzed and discussed.

Thermogravimetric analyzer has been employed in this paper to test the combustion properties of four kinds of mixed biomass fuel with sludge, domestic waste, swill, coal and grass as major components. Combustion characteristic parameters were obtained through series of experiments, and burning activation energy was got by kinetic analysis. Research results show that ignition temperature of mixed biomass fuel was relatively low and the mixed biomass fuel could be burned easily. The calculated burnout characteristics index and combustion characteristic index showed that combustibility of sample A is the worst while sample D is the best among four materials. Combustion kinetics calculations about the four samples showed that average activation energies for A, B, C and D under the low and the high combustion temperature are 47.02 kJ/mol and 50.51 kJ/mol, 28.10 kJ/mol and 26.98 kJ/mol, 27.93 kJ/mol and 26.72 kJ/mol, and 23.26 kJ/mol and10.73 kJ/mol, respectively, which present the order of activity: D>C>B>A. Results indicated that sample D has the best component proportion which could easily break down and burn out. Furthermore, combustion characteristic index of mixed biomass depends on the proportion of components, where the lower proportion of domestic waste in mixture, the better combustion characteristic index of mixed biomass fuel.

Purifying efficiency and culture performance in a recirculating aquaculture system (RAS) combined with subsurface flow wetland (SFW) were investigated in this paper. The results showed that the wetland effectively removed total suspended solids (78.6%), chemical oxygen demand (49.2%), 5-day biochemical oxygen demand (70.4%), total ammonia (53.7%) and nitrite (64.7%) from the aquaculture effluents at a hydraulic loading rate of 344 mm/d. The channel catfish (Ictalurus punctatus) with initial length of 18.97±2.92 cm were reared for 223 days in three recycling ponds at different stocking densities (0.055, 0.109, and 0.164 kg/m3) and a control pond at stocking density 0.055 kg/m3. Fish were fed to satiation twice daily with a commercial diet and the amount fed was measured to determine feed efficiency (FE). In the recycling ponds, fish growth appeared to be negatively correlated with stocking density, in which total weight gain of fish ranged from 374.9% to 886.7%. Fish in the control pond had low survival rate (61.1%) and total weight gain (465.2%), comparing with the recycling pond which had same stocking density (0.055 kg/m3). Feed efficiency (0.34) of the control pond was also significantly lower than that of the 0.055 kg/m3 treatment (0.96). A logistic model of was employed to simulate the growth of channel catfish. The estimated parameters and predicted results showed that the growth rate of channel catfish reared in recycling pond is significantly higher than that in static pond.