Sufficient and Necessary Condition for the Measurability of Fallable Fuzzy Sets

Let(X,)be a measurable space,and,=σ-field generated by {x|x∈X},where x={A∈ |x∈A}.(Y,)another measurable space,let ρ(X, Y,)={∈ |§ be measurable}.∈ρ(X,Y,),we define ()(y)=~(-1)(y),y∈y. Defination 1.T is an index set,f:{0,1}~T→{0,1},then,O~T:( (Y)~x)~T→ (Y)~x is called the operation derived from f if for any { }_(t∈T)∈((Y)~x)~Tand any(x,y)∈X×Y,it holds     

超微5A分子筛对废水中苯酚的吸附研究

在传统水热合成法基础上,采用导向剂法进行改性,合成出超微5A分子筛,通过XRD、SEM、FT-IR等多种方法进行表征。同时探讨了时间、pH值和温度等因素对超微5A沸石分子筛吸附废水中苯酚性能的影响,并提出了优化吸附条件。本研究对提高废水中苯酚的处理效果具有很好的参考价值。