Objectives: Traditional method of optimization is lengthy and time consuming while response surface methodology evaluates the effects multiple factors their interactions on one or more variables with fewer experiments. The aim present study green synthesized black tea nanoparticles using central composite design. Materials Methods: 5, 15, 25% concentrations were reacted 10, 15 mM Silver nitrate...

background: different postdesigns and materials are available; however, no consensus exists regarding superiority for stress distribution. the aim of this study was to evaluate the effect of design and material of post with or without ferrule on stress distribution using finite element analysis. materials and methods: a total of 12 three‑dimensional (3d) axisymmetric models of postretained cent...

An up-flow anaerobic sludge fixed film (UASFF) bioreactor was used to treat the pretreated palm oil mill effluent (POME). In physical pretreatment, POME was pre-settled for 2 h and the supernatant was fed into the reactor. In chemical pretreatment, optimum dosages of cationic and anionic polymers were used. Experiments of pretreated POME digestion were conducted based on a central composite fac...

234 Application of Statistical Design to Optimize Culture Medium for Xylanase Production by Bacillus pumilus AB-1 Snehal Ingale, Sonam Kalyani 1 and Urvish Chhaya Ashok and Rita Patel Institute of Integrated Study and Research in Biotechnology & Allied Sciences, New Vallabh Vidyanagar-388120, Gujarat, India Natubhai V. Patel College of Pure and Applied Sciences, Vallabh Vidyanagar-388120, Gujar...

The objective of the research is to study and compare response surface designs: Central composite designs (CCD), BoxBehnken designs (BBD), Small composite designs (SCD), Hybrid designs, and Uniform shell designs (USD) over sets of reduced models when the design is in a spherical region for 3 and 4 design variables. The two optimality criteria ( D and G ) are considered which larger values imply...

Functionally graded aluminium/zirconia metal matrix composite was fabricated using stir casting technique followed by horizontal centrifugal casting process and a hollow cylindrical functionally graded composite (150 x 150 x 16 mm) was obtained with centrifuging speed of 1200 rpm. The microstructural evaluation and hardness test was carried out on the outer and inner surface of the functionally...

Article history: Received on: 05/10/2015 Revised on: 23/10/2015 Accepted on: 08/11/2015 Available online: 27/12/2015 This work, for the first time reports the optimization of recombinant human antithrombin (rhAT) production in Saccharomyces cerevisiae BY4741 using statistical experimental designs. Most applications of design of experiments (DoE) have concerned optimization of the composition of...

The effect of the operating conditions (temperature, time, pH, enzyme level and pulp consistency) used in the enzymatic step of a XP (Cartazyme-hydrogen peroxide) sequence for bleaching Kraft pulp from bagasse on various properties of the resulting pulp and paper sheet products was studied. The quality of bagasse used, was examined by its yield, brightness,viscosity and the Kappa number. Finall...

Isoniazid (INH) was studied with regard to its electrochemical treatment on a strongly alkaline solution of a poly (3,4-ethylenedioxythiophene)-modified gold electrode, using both cyclic voltammetry and controlled potential techniques. This composite electrode exhibited 4-fold higher oxidation of INH, in accordance with peak densities, than the bare gold electrode. It was used the central compo...

In this work, we successfully developed electromembrane extraction via preparation of an electrospun flat membrane based on device. The polyurethane-membrane was prepared by electrospinning method and used in EME. Affecting parameters on membrane preparation were optimized by Taguchi design. The developed method was used for extraction of phthalates as typical molecules and the proposed method ...