An atmospheric pressure dielectric barrier discharge （DBD） plasma jet generator using air flow as the feedstock gas was applied to decontaminate the chemical agent surrogates on the surface of aluminum, stainless st...An atmospheric pressure dielectric barrier discharge （DBD） plasma jet generator using air flow as the feedstock gas was applied to decontaminate the chemical agent surrogates on the surface of aluminum, stainless steel or iron plate painted with alkyd or PVC. The experi- mental results of material decontamination show that the residual chemical agent on the material is lower than the permissible value of the National Military Standard of China. In order to test the corrosion effect of the plasma jet on different material surfaces in the decontamination pro-cess, corrosion tests for the materials of polymethyl methacrylate, neoprene, polyvinyl chloride （PVC）, polyethylene （PE）, phenolic resin, iron plate painted with alkyd, stainless steel, aluminum, etc. were carried out, and relevant parameters were examined, including etiolation index, chroma- tism, loss of gloss, corrosion form, etc. The results show that the plasma jet is slightly corrosive for part of the materials, but their performances are not affected. A portable calculator, computer display, mainboard, circuit board of radiogram, and a hygrometer could work normally after being treated by the plasma jet.展开更多
A framework for building EDM collaborative manufacturing system usingmulti-agent technology to support organizations characterized by physically distributed,enterprise-wide, heterogeneous intelligent manufacturing sys...A framework for building EDM collaborative manufacturing system usingmulti-agent technology to support organizations characterized by physically distributed,enterprise-wide, heterogeneous intelligent manufacturing system over Internet is proposed. Expertsystem theory is introduced. Design, manufacturing and technological knowledge are shared usingartificial intelligence and web techniques by EDM-CADagent, EDM-CAMagent and EDM-CAPPagent. Systemstructure, design process, network conditions, realization methods and other key techniques arediscussed. Instances are also introduced to testify feasibility.展开更多
为进一步提高循环水浓缩倍率,解决部分循环水在高倍率下时SiO_(2)先达到结垢极限,浓缩倍率提高受限问题。本文在实验室向平行烧杯水样中,分别手动添加1 g MgO,2 g MgO,1 g MgO+PAC,2 g MgO+PAC+PAM四种单镁剂进行除硅试验,以及分别添加1...为进一步提高循环水浓缩倍率,解决部分循环水在高倍率下时SiO_(2)先达到结垢极限,浓缩倍率提高受限问题。本文在实验室向平行烧杯水样中,分别手动添加1 g MgO,2 g MgO,1 g MgO+PAC,2 g MgO+PAC+PAM四种单镁剂进行除硅试验,以及分别添加1%PAC 0.5 mL,1%PAC 1.0 mL,1%PAC 0.5 mL+5‰PAM 0.5 mL,1%PAC 1.0 mL+5‰PAM 1.0 mL药剂的组合絮凝沉降试验,确定最佳处理药剂组合为MgO+氢氧化钙(pH=12)+1%PAC 0.5 mL+5‰PAM 0.5 mL。在电厂已建具有絮凝、沉淀、过滤的工业废水系统中进行了实际应用,对最佳处理药剂组合进行检验。结果表明,实验室中“氧化镁+氢氧化钙”的除硅组合药剂是最佳组合,最高除硅率可达92.1%。在2×600 MW燃煤机组现场试验中,最佳药剂组合的应用,可实现实际废水处理量为100 t/h左右,除硅率稳定在85%左右,产水硬度降低,回用循环水系统后浓缩倍率从原9倍提升至11~12倍,效果明显。循环水投加“氧化镁+氢氧化钙”组合药剂,然后絮凝沉淀处理后回用,成功达到循环水除硅、将浓缩倍率上限提升2~3倍、减少排水量以实现全厂水量再平衡的目的,具有经济性和示范性。展开更多
文摘An atmospheric pressure dielectric barrier discharge （DBD） plasma jet generator using air flow as the feedstock gas was applied to decontaminate the chemical agent surrogates on the surface of aluminum, stainless steel or iron plate painted with alkyd or PVC. The experi- mental results of material decontamination show that the residual chemical agent on the material is lower than the permissible value of the National Military Standard of China. In order to test the corrosion effect of the plasma jet on different material surfaces in the decontamination pro-cess, corrosion tests for the materials of polymethyl methacrylate, neoprene, polyvinyl chloride （PVC）, polyethylene （PE）, phenolic resin, iron plate painted with alkyd, stainless steel, aluminum, etc. were carried out, and relevant parameters were examined, including etiolation index, chroma- tism, loss of gloss, corrosion form, etc. The results show that the plasma jet is slightly corrosive for part of the materials, but their performances are not affected. A portable calculator, computer display, mainboard, circuit board of radiogram, and a hygrometer could work normally after being treated by the plasma jet.
基金Natonal Natural Science Foundation of China (No.59935110)
文摘A framework for building EDM collaborative manufacturing system usingmulti-agent technology to support organizations characterized by physically distributed,enterprise-wide, heterogeneous intelligent manufacturing system over Internet is proposed. Expertsystem theory is introduced. Design, manufacturing and technological knowledge are shared usingartificial intelligence and web techniques by EDM-CADagent, EDM-CAMagent and EDM-CAPPagent. Systemstructure, design process, network conditions, realization methods and other key techniques arediscussed. Instances are also introduced to testify feasibility.
