Results 11 to 20 of about 6,512 (216)
MONITORING TRACTOR PERFORMANCE USING SHEWHART AND EXPONENTIALLY WEIGHTED MOVING AVERAGE CHARTS [PDF]
Engenharia Agrícola, 2021 Statistical process control has been widely used in agricultural operations for monitoring and improving process quality. This study aims to evaluate the Shewhart and exponentially weighted moving average (EWMA) control charts to monitor the performance ...
Murilo A. Voltarelli +4 more
doaj +1 more source
Биопрепараты: Профилактика, диагностика, лечение, 2021 The Russian Federation puts special emphasis on vaccination-related issues, in accordance with the WHO recommendations. The fact that vaccination, in particular with the diphtheria, tetanus, and pertussis vaccine (DTP vaccine), covers large population ...
I. A. Alekseeva +2 more
doaj +1 more source
Control charts for monitoring drip irrigation with different hydraulic heads
Revista Ambiente & Água, 2020 This study monitored a drip irrigation system with different hydraulic heads, using control charts. The study included 25 tests, and was conducted at the Experimental Nucleus of Agricultural Engineering of the State University of Western Paraná, located ...
Allan Remor Lopes +4 more
doaj +1 more source
CONTROL CHARTS MONITORING FOR QUALITY CONCRETE PAVEMENTS [PDF]
Scientific Journal of Silesian University of Technology. Series Transport, 2020 In this article, Control charts are employed to analyse the strength quality control of ready-mixed concrete for rigid pavement. The results of the study support that CUSUM statistical analysis is more sensitive than the Shewhart control chart. The CUSUM
Izabela SKZYPCZAK +3 more
doaj +1 more source
Assessing the use of the moving window approaches when monitoring social networks using a degree corrected stochastic block model [PDF]
Review of Economics and Political Science, 2021 Purpose – This study aims to assess the effect of updating the Phase I data – to enhance the parameters' estimates – on the control charts' detection power designed to monitor social networks. Design/methodology/approach – A dynamic version of the degree
Abeer A. Zaki +2 more
doaj +1 more source
Diagram Kendali MAD pada Harga Cabai Rawit di Jawa Tengah
Jurnal Matematika, 2021 Food price policies affect the stabilization of food prices in Indonesia. The control chart is one of the tools used to measure the stabilization of food prices. The control chart was first introduced by W.A. Shewhart.
Yolanda Norasia
doaj +1 more source
Shewhart's control charts and process capability ratio applied to a sewage treatment station [PDF]
Engenharia Agrícola, 2014 The current study used statistical methods of quality control to evaluate the performance of a sewage treatment station. The concerned station is located in Cascavel city, Paraná State.
Fábio Orssatto +3 more
doaj +1 more source
Fuzzy Xbar and S Control Charts Based on Confidence Intervals
Journal of Advanced Research in Natural and Applied Sciences, 2021 There have been changes since the companies have realized the important role of quality improvement in their success. If they are able to produce high quality products and satisfy demands, then they can survive in competitive global markets.
Nilufer Pekin Alakoc
doaj +1 more source
The development of egg hatching and storage machines equipped with cooling and heating systems and iot [PDF]
, 2021 The development of egg hatching and storage machines equipped with cooling and heating systems and IoT was for helping chicken breeders to address the issue of chicken production shortages. To produce large numbers of poultry production, eggs hatching is
Abdulrahman, Khairul Anuar +6 more
core +1 more source
Gestão & Produção, 2002 Cartas de controle estatístico vêm sendo utilizadas com sucesso no monitoramento do desempenho de processos industriais. Nos últimos anos, diversas modificações nas cartas de Shewhart foram propostas na literatura.
Renato Michel, Flávio S. Fogliatto
doaj +1 more source