in a robust parameter design (rpd) problem, the experimenter is interested to determine the values of con-trol factors such that responses will be robust or insensitive to variability of the noise factors. response sur-face methodology (rsm) is one of the effective methods that can be employed for this purpose. since quality of products or processes is usually evaluated through several quality ...

xanthan gum is an extracellular polysaccharide produced by various xanthomonas species such as x. campestris . the objective of present study was to investigate the influence of different carbon and nitrogen sources on xanthan gum production by x. campestris . using an experimental response surface methodology (rsm) complemented with a central composite design (ccd), the impact of peptone, lact...

probiotics are defined as living microorganisms with beneficial effects on the host. probiotics, according to the least negative effect on the body, are considered as a good alternative to chemical drugs. lactobacillus acidophilus is used as a probiotic that is able to reduce cholesterol level in the blood. the effect of various concentrations of carbon, nitrogen and phosphorus for enhancing th...

Article history: Received 13 October 2016 Received in revised form 13 March 2017 Accepted 18 April 2017 Available online 5 May 2017

This study investigates experimentally the relationship between induced vibration and surface roughness in turning of 41Cr4 Alloy steel using Response Surface Methodology RSM. The levels of process cutting parameters in the study are limited to the following data; Depth of cut (1.0, 2.0, 3.0 mm), cutting speed (260, 320, 400 rpm), feed rate (0.15, 0.20, 0.30 mm/rev), tool nose radius (0, 1, 2 m...

The aim of this study was to optimize the preparation process of baicalin-β-cyclodextrin inclusion compound (baicalin-β-CD) by adopting Response Surface Methodology (RSM). On the basis of the single-factor experiment, the conditions of the inclusion process were optimized by adopting RSM with the factors to be investigated (i.e. the proportion of β-CD and baicalin, inclusion time and inclusion ...

In response surface models the expected response is usually taken to be a low degree polynomial in the design variables that are coded from the factor settings. We argue that an overparameterized polynomial representation of the expected response ooers great economy and transparency. As an illustration, we exhibit a constructive path of design improvement relative to the Kiefer design ordering,...

A. Sivalingam, N. M. Hariharan, T. Kannadasan, M. Thirumarimurugan, and S. Gopalakrishnan Department of Chemical Engineering, Coimbatore Institute of Technology, Coimbatore – 641 014, Department of Chemical Engineering, Coimbatore Institute of Technology, Coimbatore – 641 014 Chemical Engineering, Coimbatore Institute of Technology, Coimbatore – 641 014 and Anna University of Technology, Coimba...

In this paper, simplified ozone models for potential use in integrated assessment are developed from the EMEP ozone model, which is a single-layer Lagrangian trajectory model. The simplification method uses fuzzy rule generation methodology to represent numerous results of the EMEP model as a response surface describing the source-receptor relationships between ozone precursor emissions and dai...

Almost all of the 26 sporadic finite simple groups possess systems of subgroups which, in several ways, resemble the parabolic systems of the finite simple groups of Lie type. Many of these systems are catalogued in [RSt, RSm]. Those in [RSt] mirror more closely the minimal parabolic systems of a finite simple group of Lie type. In this paper the term minimal parabolic system will be used in a ...