Based on the methods of acquaintance cache and group-based intelligent forwarding of service recommendations,a novel group-based active service(GAS) protocol for migrating workflows was proposed.This protocol did not ...Based on the methods of acquaintance cache and group-based intelligent forwarding of service recommendations,a novel group-based active service(GAS) protocol for migrating workflows was proposed.This protocol did not require service requesters to discover services or resources.The semantic acquaintance knowledge representation was exploited to describe service groups and this semantic information was used to recommend service to respective clients.The experimental results show that the new protocol proposed offers better performance than other protocols in terms of first-response-time,success-scope and ratio of success-packet-number to total-packet-number.When the number of service request packet is 20,the first-response-time of GAS protocol is only 5.1 s,which is significantly lower than that of other protocols.The success-scope of GAS protocol is 49.1%,showing that GAS protocol can effectively improve the reliability of mobile transactions.And the ratio of success-packet-number to total-packet-number of GAS protocol is up to 0.080,which is obviously higher than that of other protocols.展开更多
The high Fe^(2+)content of tourmaline(TM)has potential of activating a persulfate reaction.However,information pertaining to using TM as an activator in persulfate oxidation process is currently unavailable.In this st...The high Fe^(2+)content of tourmaline(TM)has potential of activating a persulfate reaction.However,information pertaining to using TM as an activator in persulfate oxidation process is currently unavailable.In this study,powdered TM was used to activate persulfate(PS)oxidation for decolorization synthetic direct azo dye,Sirius Türkis GL 01(STGL).Findings revealed that decolorization was significantly enhanced by TM/PS combined with ultrasound.A suitable oxidation condition for removal true color was TM 1.5 g/L,PS 5 *10^(-4)M,US 106 W/cm^2(20 min sonication at 20 kHz),and initial pH 6.0,which could completely remove the color and COD of 40 mg/L STGL after 20 min treatment.Oxidation condition under higher TM dosage with higher sonication power is beneficial for generation of sulfate radicals,consequently,promoting the oxidation performance of TM/PS process.Results clearly indicated that Fe-tourmaline,can be potentially used to activate PS oxidation for effective decolorization of wastewater containing direct azo dyes.展开更多
基金Project(60573169) supported by the National Natural Science Foundation of China
文摘Based on the methods of acquaintance cache and group-based intelligent forwarding of service recommendations,a novel group-based active service(GAS) protocol for migrating workflows was proposed.This protocol did not require service requesters to discover services or resources.The semantic acquaintance knowledge representation was exploited to describe service groups and this semantic information was used to recommend service to respective clients.The experimental results show that the new protocol proposed offers better performance than other protocols in terms of first-response-time,success-scope and ratio of success-packet-number to total-packet-number.When the number of service request packet is 20,the first-response-time of GAS protocol is only 5.1 s,which is significantly lower than that of other protocols.The success-scope of GAS protocol is 49.1%,showing that GAS protocol can effectively improve the reliability of mobile transactions.And the ratio of success-packet-number to total-packet-number of GAS protocol is up to 0.080,which is obviously higher than that of other protocols.
基金supported by the Ministry of Sci.and Tech.,Taiwan via Grant MOST 105-2221-E-214-002-MY3
文摘The high Fe^(2+)content of tourmaline(TM)has potential of activating a persulfate reaction.However,information pertaining to using TM as an activator in persulfate oxidation process is currently unavailable.In this study,powdered TM was used to activate persulfate(PS)oxidation for decolorization synthetic direct azo dye,Sirius Türkis GL 01(STGL).Findings revealed that decolorization was significantly enhanced by TM/PS combined with ultrasound.A suitable oxidation condition for removal true color was TM 1.5 g/L,PS 5 *10^(-4)M,US 106 W/cm^2(20 min sonication at 20 kHz),and initial pH 6.0,which could completely remove the color and COD of 40 mg/L STGL after 20 min treatment.Oxidation condition under higher TM dosage with higher sonication power is beneficial for generation of sulfate radicals,consequently,promoting the oxidation performance of TM/PS process.Results clearly indicated that Fe-tourmaline,can be potentially used to activate PS oxidation for effective decolorization of wastewater containing direct azo dyes.
