It is well known that Data Envelopment Analysis (DEA) is a relative efficiency measurement tool, which uses optimization techniques to automatically calculate the weights assigned to the crisp deterministic multiple inputs and outputs of a set of the Decision Making Units (DMUs) being assessed. However, crisp deterministic data requirement delimits an application to the real world problems wher...

The physical and mechanical properties of foamed geopolymers were determined. made with two different metakaolins (from Metacaulim do Brasil - MB, Pantano Grande/RS MPG) as precursors, NaOH Na2SiO3 activators, the addition foam, which was produced foaming agent diethanolamide coconut fatty acid a minimum 80% concentration. Also, times (2.5 4 h) used for calcination MPG at 750 °C. results showed...

In this paper, the fractal dimension of coal surfaces was calculated using theory, and influence different surfactants on surface studied. Six kinds sustainable traditional used in gas desorption processes were compared analyzed. We mineral fertilizer from Huainan Liuzhuang, China, as research object studied sodium dodecyl benzene sulfonate (SDBS), cohol diethanolamide (CDEA), nonylphenol polyo...

The use of synthetic antibacterial liquid hand soap such as triclosan has begun to be avoided. Therefore it is necessary find an alternative that safe for the skin and friendly environment. One environmentally alternatives smoke resulting from pyrolysis process coconut shells. purpose this study was obtain right concentration made palm MES surfactants glycerol. stages research were raw material...

THE chemotherapy of bacterial diseases is a medical innovation of the last four years only. In the case of the protozoal infections, on the other hand, this form of treatment is comparatively ancient. The discovery of the effect of quinine in malaria dates from the seventeenth century, and mercury was used in syphilis in very early times. In I9IO Ehrlich and Hata published the discovery of the ...