In high quality industrial processes, the control chart is design based on cumulative count of conforming (CCC) items is very useful. In this paper, the performance of CCC-r chart with variable sampling intervals (CCC-rVSI chart) in the presence ofinspectionerrors isinvestigated. The efficiency of CCC-rVSI chart is compared with CCC-r chart with fixed sampling interval (CC...

BACKGROUND As the most populous nation in the world, China has now becoming an emerging ageing society. Shanghai is the first city facing the challenge of ageing demographics. Against this background, a study that employs self-rated health (SRH) assessment system was designed to explore the health status of Shanghai elders, and learn their attitudes toward health issues; as well as to investiga...

Background: Interleukin 17 (IL-17) is a pro-inflammatory cytokine mainly secreted by activated TH-17 cells and involved in inflammatory immune responses. Interleukin 23 (IL-23) sustains the development of inflammation and is considered a check point. Aim: the aim of the present study was to investigate the association between serum IL-17A, IL-17F and serum IL23receptor variants in Saudi women w...

control chart is the most well-known chart to monitor the number of nonconformities per inspection unit where each sample consists of constant size. generally, the design of a control chart requires determination of sample size, sampling interval, and control limits width. optimally selecting these parameters depends on several process parameters, which have been considered from statistical and...

Supersaturated design (SSD) has received much interest because of its potential in factor screening experiments. Recently, Chen and Liu [Chen, J., Liu, M.Q., 2008a. Optimal mixedlevel k-circulant supersaturated designs. J. Statist. Plann. Inference 138, 4151–4157] explored the construction of E(fNOD )-optimalmixed-level SSDs using k-cyclic generators. As an extension, this paper further studies...

A 2-hued coloring of a graph G (also known as conditional (k, 2)-coloring and dynamic coloring) is a coloring such that for every vertex v ∈ V (G) of degree at least 2, the neighbors of v receive at least 2 colors. The smallest integer k such that G has a 2-hued coloring with k colors, is called the 2-hued chromatic number of G and denoted by χ2(G). In this paper, we will show that if G is a re...

quality control plays an important role in increasing the product quality. fuzzy control charts are more sensitive than shewhart control chart. hence, the correct use of fuzzy control chart leads to producing better-quality products. this area is complex because it involves a large scope of industries, and information is not well organized. in this research, we provide a literature review of th...

Background: Despite the available evidence on benefits of COVID-19 vaccine, its low uptake and hesitancy remain a challenge. This study assessed individual, administrative, social, demographic factors associated with vaccine uptake. Methods: Analytical cross-sectional design was used. The data collected using structured questionnaires administered to 384 respondents key informant interview guid...