Formulation process is a very complex activity which sometimes implicates taking decisions about parameters or variables to obtain the best results in a high variability or uncertainty context. Therefore, robust optimization tools can be very useful for obtaining high quality formulations. This paper proposes the optimization of different responses through the robust Taguchi method. Each respon...

The effect of grape pomace (Vitis vinifera) and in oak leaf (Quercus libani) tannins by three runs of in vitro gas production on the organic matter digestibility (OMD) and in situ dry matter (DM) and crude protein (CP) disappearance were studied in four sheeps. Polyethylene glycol (PEG) was used to deactivate the tannins. In vitro gas production was recorded at 2, 4, 6, 8, 12, 48, 72, 96 and 12...

As a key part of vertical cavity surface emitting laser (VCSEL), active region will seriously affect the threshold and efficiency device. To obtain appropriate wavelength material gain, design In<sub>0.18</sub>Ga<sub>0.82</sub>As strain compensated quantum well is optimized. The relationship between lasing multiple wells (MQWs) thickness calculated. Considering influence...

Aggregation behaviour of cefprozil monohydrate (C18H19N3O5S.H2O), an antibiotic, has been studied in presence of sodium dodecyl sulphate (SDS) and Cetyltrimethylammonium bromide (CTAB). Critical micelle concentration (CMC) of drug is determined to be 0.34 mM and is observed to decrease significantly at SDS < 2 mM. Above this concentration increase is less prominent and remains almost constant. ...

Quercetin is a flavonoid from group of polyphenolic compounds. can be used as an alternative to acne treatment, predominantly triggered by Propionibacterium acnes. This study aimed determine the effect and proportion carbopol 940, propylene glycol, glycerin on physical quality quercetin gel, ability optimum formula in antibacterial test, its diffusion using Franz diffusion. uses factorial desig...