نتایج جستجو برای: central composite design
تعداد نتایج: 1500802 فیلتر نتایج به سال:
Abstract In this work, removal of phenanthrene and acenaphthene, as a representative of polycyclic aromatic hydrocarbons, was investigated from soil samples by the soil washing remediation method combined with Central Composite Design. Response surface methodology was utilized to investigate the individual and interactive effects of three variables of removal process including surfactant solut...
An aqueous solution of boric acid, as an efficient and green catalytic system, was efficiently utilized four-component cascade reaction of aryl aldehydes, dimedone, β-ketoesters and ammonium acetate to give hexahydroquinolines. By the reaction of boric acid with water, H+ was generated and efficiently catalyzed the reaction under mild and green condition. Also, optimization of the reaction cond...
Second-order designs are constructed by adding a second two-level design to an initial 2 or 2 experiment. I label such designs as noncentral composite designs, since they are composed of two designs with different centers. The location of the second block can be determined following analysis of the initial experiment. Noncentral composite designs provide an attractive alternative to the popular...
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