Using stems as materials,propagation in vitro of Dioscorea fordii Prain et Burkill was studied under the temperature of(25±1)℃,illumination intensity of 24～30 μmol·m-2·s-1 and illumination time of 10 h/d,in the MS basic culture medium.
以淮山(Dioscorea fordii Prain et Burkill)茎段为材料,以MS为基本培养基,在(25±1)℃、光照强度24~30μmol/m2.s-1、光照时间10 h/d条件下对淮山的组织培养与快速繁殖技术进行了研究.
This paper discover that catalyzer dosage, illumination time, amount of H2O2, velocity of air fluid and pH have some influence on the process of photocatalytic degrading for molasses-alcoholic wastewater.
And the experiment show that the result of tetracycline treatment by photocatalysis is optimal under the condition of TiO_2 supply 1.5g、pH 3、irradiation time 120mrn、 tetracycline concentration 400mg/L、 light strength 60W and the COD_(cr) reduction can reach 66% in above condition;
The optimum reaction condition of chitosan degradation with hydrogen peroxide under irradiation with ultraviolet light was obtained as follows: irradiation time 1h, the mass fraction of hydrogen peroxide, chitosan, acetic acid is 2.5%,l%,1.5%,respectively.
The conditions of the AAc-grafted and GMA-grafted polymerizations were discussed. Concentration of BP and AAc were 4%-6%, 15% respectively, and irradiation time about 25min-30min were appropriate for AAc-grafted polymerizations.
The round cocoon larvae increase apparently when the light length exceed 14H, furthermore,longer the light time, more the diapause larvae, it elucidates that the sensitive light time to larvae diapause is 12H-14H.
The results show that UG-1 ultraviolet curing powder coating's membrane has excellent chemical and physical properties, optimum quantify (mass ratio) range of initiator an resin flow modifier are2.0%-3.0% and 0.6%-0.9% respectively, the melting flow-temperture of UG-1 is 110℃, the illuminating time with ultravillet rays is only 3 seconds.