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Improved simple linear profiling method with application to chemical gas sensors
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John Wiley and Sons Ltd
, 2021 , Article)
In industrial applications, a functional relationship between the quality characteristics of interest is well represented by profile functions. These are often characterized by linear or nonlinear relationships that depend ...
The use of fast initial response features on the homogeneously weighted moving average chart with estimated parameters under the effect of measurement errors
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John Wiley and Sons Ltd
, 2021 , Article)
Fast initial response (FIR) features are generally used to improve the sensitivity of memory-type control charts by shrinking time-varying control limits in the earlier stage of the monitoring regime. This paper incorporates ...
A non-parametric double homogeneously weighted moving average control chart under sign statistic
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John Wiley and Sons Ltd
, 2021 , Article)
In practical situations, the underlying process distribution sometimes deviates from normality and their distribution is partially or completely unknown. In that instance, rather than staying with/depending on the conventional ...
Enhanced adaptive multivariate EWMA and CUSUM charts for process mean
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Taylor and Francis Ltd.
, 2021 , Article)
The multivariate charts are mostly used to simultaneously monitor several quality characteristics in manufacturing processes. In this study, we enhance the sensitivities of the recently proposed adaptive multivariate EWMA ...
Efficient monitoring of coefficient of variation with an application to chemical reactor process
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John Wiley and Sons Ltd
, 2021 , Article)
Control chart is a useful tool to monitor the performance of the industrial or production processes. Control charts are mostly adopted to detect unfavorable variations in process location (mean) and dispersion (standard ...
One-Sided and Two One-Sided Multivariate Homogeneously Weighted Moving Charts for Monitoring Process Mean
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Institute of Electrical and Electronics Engineers Inc.
, 2021 , Article)
Multivariate memory-type control charts that use information from both the current and previous process observations have been proposed. They are designed to detect shifts in both upper and downward directions with equal ...
Run Rules-Based EWMA Charts for Efficient Monitoring of Profile Parameters
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Institute of Electrical and Electronics Engineers Inc.
, 2021 , Article)
In usual quality control methods, the quality of a process or product is evaluated by monitoring one or more quality characteristics using their corresponding distributions. However, when the quality characteristic is ...
On existence and uniqueness of best proximity points for proximal β-quasi contractive mappings on metric spaces
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Forum-Editrice Universitaria Udinese SRL
, 2021 , Article)
This paper focus on the study of the generalization of the best proximity
point theorems for non-self contractions. In fact we propose two new theorems on the
existence and the uniqueness of best proximity points for ...
Some fixed and periodic point results for generalized contractions on partial ordered metric space with applications in metric space
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Boletim da Sociedade Paranaense de Matematica
, 2021 , Article)
In this paper, we introduce new type of Θ-contraction in termof a self-mapping on a metric space to obtain common fixed point results. Some examples arealso provided to support the validity of our results and concepts ...
Extremal number of theta graphs of order 7
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Boletim da Sociedade Paranaense de Matematica
, 2021 , Article)
For a set of graphsF, letH(n;F) denote the class of non-bipartiteHamiltonian graphs onnvertices that does not contain any graph ofFas a subgraphandh(n;F) = max{E(G) :G∈H(n;F)}whereE(G) is the number of edges inG.In this ...