نتایج جستجو برای: orthogonal array oa

تعداد نتایج: 193655  

Ehsan Bahiraee Sadigh Raissi

Control charts are extensively used in manufacturing contexts to monitor production processes. This article illustrates economical design of a variable sample size and control limit Hotelling’s T2 control chart based on a novel cost model when occurrence times of the assignable causes are exponentially distributed. The proposed nonlinear cost model is an extension of Duncan’s (J Am Stat ...

Journal: :the modares journal of electrical engineering 2006
mostafa yargholi mojtaba lotfizad

different methods exists for jamming mitigation and we should choose a method based an the jammer type and other parameters. one of the jammers is narrow band fm jammer and we use subspace projection techniques for the suppression of this type of jammer. in subspace projection technique, we estimate the if of signals and construct the subspace vector that is orthogonal to jammer vector by incre...

CoHErrelation between weldability and improvement in properties is a key issue in materials science research. The objective of this work is to optimize the process parameters viz., aging temperature, aging time, solutionizing time, to enhance the hardness of Al6061 alloy. Hence, the present paper deals with hardness study of Tungsten Inert Gas welded 6061 aluminium alloy after age hardening und...

Journal: :Rel. Eng. & Sys. Safety 2015
Manuel R. Piña-Monarrez Jesús F. Ortiz-Yañez

The paper provides to reliability practitioners with a method (1) to estimate the robust Weibull family when the Taguchi method (TM) is applied, (2) to estimate the normal operational Weibull family in an accelerated life testing (ALT) analysis to give confidence to the extrapolation and (3) to perform the ANOVA analysis to both the robust and the normal operational Weibull family. On the other...

2016
Praveen Kumar Mehta Shashi Kant Bhatia Ravi Kant Bhatia Tek Chand Bhalla

The specific effect of chemical and physical factors on amidase production from Geobacillus subterraneus RL-2a was investigated using design of experiments (DOE) methodology. The one-factor-at-a-time (OFAT) method was used to study the effects of carbon and nitrogen sources on amidase production. Subsequently, optimal levels of physical parameters and key media components, namely temperature, p...

2015
Gaurav Upadhyay Kamal Hassan

Stainlesssteel 403 is high-alloysteelwith good corrosion resistance and it’svery hard material. Abrasive water jet is an effective method for machining, cutting and drilling of stainlesssteel 403. In thispaperweoptimize the metalremoval rate of stainlesssteel 403 in abrasive water jet machining. The MRRisoptimize by usingthreeparameters water pressure, abrasive flow rate and stand-off distance ...

Journal: :Journal of Statistical Theory and Practice 2018

Journal: :International Journal of Antennas and Propagation 2012

Journal: :International Journal of Mechanical and Materials Engineering 2022

Abstract Taguchi’s method was applied to investigate the effect of main high energy ball milling (HEBM) parameters: time (MT), powder weight ratio (BPWR), and speed (MS) on CaCO 3 crystallite size. The settings HEBM parameters were determined by using L9 (3 ) orthogonal experiments array (OA). as-received milled powders characterized X-ray diffraction (XRD) scanning electron microscopy (SEM), F...

Journal: :Journal of Statistical Planning and Inference 2021

For integers n>2 and k>0, an (n×n)?k semi-Latin square is n×n array of k-subsets (called blocks) nk-set (of treatments), such that each treatment occurs once in row column the array. A uniform if every pair blocks, not same or column, intersect positive number treatments. It known a Schur optimal class all squares, here we show when exists, squares are precisely ones. We then compare using crit...

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