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...

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...


 A few years ago, validating proteins to see if they were good or bad was a process that took years. With the creation of Ramachandran Graph evaluates protein structures through angles φ (phi) and ψ (psi), this task became less onerous. evolution computing bioinformatics, platforms have been created generate graphs in an online manner, however, high degree usability complexity. The system...

to facilitate a comprehensive whole population visual acuity screening, a 1-meter vision screener “e” chart was prepared to be used in the person-by-person household visual acuity examination by non-expert health workers. the chart is designed to be used in measuring visual acuity from a distance of one meter. the scaling is in terms of-log mar (logarithm of minimum angle of resolution) with a ...

growth chart is the best measure for weight monitoring of children. most factors that affect child heath show their effect on child weight. this cross sectional and descriptive analytical study was achieved to estimate malnutrition prevalence and effective factors in children under 5 years old in rural area of khoramabad province. 555 girls and 570 boys were chosen from health houses by cluster...