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34 results for “statistical quality control”
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Research ArticleOpen accessIn the abstractA Simple Robust Control Chart Based on MADMoustafa Omar Ahmed Abu-ShawieshControl charts are one of the most powerful tools used to detect aberrant behavior in industrial processes. The Shewhart S-control chart is one of the most widely used statistical process control techniques developed to control the process variability based on the fundamental assumption that the underlying distribution of the quality characteristic is normal. When the underlying normality assumption is not … …Journal of Mathematics and Statistics, Vol. 4, Issue 2 · 30 Jun 2008 · 14,254 accessesView PDFCite
Research ArticleOpen accessIn the abstractConstruction of Control Charts Using Fuzzy Multinomial QualityV. Amirzadeh, M. Mashinchi, M.A. YaghoobiControl charts are the simplest type of on-line statistical process control techniques. One of the basic control charts is P-chart. In classical P-charts, each item classifies as either "nonconforming" or "conforming" to the specification with respect to the quality characteristic. In practice, one may classify each item in more than two categories such as "bad", "medium", "good", and "excellent". Based … …Journal of Mathematics and Statistics, Vol. 4, Issue 1 · 31 Mar 2008 · 7,530 accessesView PDFCite
Research ArticleOpen accessIn the abstractThe Role of Quality Control and Everyone’s Participation in Japan to Prevent Pollution During Last Five DecadesMohammed Matouq, Nasir Kloub, Kazue InoueEconomic Growth in Japan after World War II was very remarkable and products from its manufacturing industry were widely accepted in the world market after productivity and quality of them were tremendously improved. On the other hand, Japan soon found itself in severe environmental deterioration, due to not being paid any attention to environment. However, that pollution from industry was … …American Journal of Applied Sciences, Vol. 4, Issue 1 · 30 Apr 2007 · 7,998 accessesView PDFCite
Research ArticleOpen accessIn the abstractData Quality and IndicatorsJorge Matute, A.P. GuptaThis study highlights the importance of collecting good quality data from multidisciplinary studies. Bias in data may be the result of instrument inaccuracies, imprecise data recording techniques, inaccurate data entry to computers or inappropriate statistical analysis and presentation. Recommendations for good data quality control are given. Different types of data are discussed: raw data, simple indicators and complex indicators. It … …American Journal of Agricultural and Biological Sciences, Vol. 2, Issue 1 · 31 Mar 2007 · 7,857 accessesView PDFCite
Research ArticleOpen accessIn the abstractFresh Water Savings Through the Use of Municipal Effluents in Concrete PavementBenard Chola, Stephanie Luster-Teasley, Manoj K. Jha, Miguel PicornellWastewater reuse presents a promising solution to the growing pressure on the world’s water resources. The use of municipal wastewater effluents for concrete production in the construction industry would result in energy and water savings leading to conservation and sustainability of our water resources. In this research, to promote and increase the reuse of wastewater in construction industry, both chemical … …American Journal of Environmental Sciences, Vol. 11, Issue 4 · 3 Nov 2015 · 6,808 accessesView PDFCite
Research ArticleOpen accessIn the abstractThe Effect of Computer Use in Science and Technology Lesson on Success and Attitude TowardsCem O. Guzeller, Mustafa DogruProblem statement: Computer being indispensable in our daily lives came into use in all fields of education. Use of computer for education activities became mandatory. This research is an experimental research performed by use of computer in science and technology and is important in terms of serving science education. General purpose of this research is to reveal the effect of … …Journal of Social Sciences, Vol. 7, Issue 4 · 10 Aug 2011 · 10,034 accessesView PDFCite
Research ArticleOpen accessIn the abstractTo Seek the Hidden MonsterK. K. Rahul, S. AmbujamProblem statement: The asymptomatic stage of HIV infection is dealt with in detail in all Dermatology books. Patients in this stage present with skin lesions that occur even in the immunocompetent. However when these lesions recur, are atypical, aggressive or unresponsive to treatment, it is worthwhile to go back into the history to ascertain if there is a history of … …Current Research in Medicine, Vol. 1, Issue 2 · 31 Oct 2010 · 6,927 accessesView PDFCite
Research ArticleOpen accessIn the abstractUse of Jiben Seeds Extract to Manufacture Soft White CheeseMohamed A. Talib, M. M. Abubakar, I. A. Jideani, Ahmed HassanRennet substitute was applied for preparation of white cheese with Jiben (Solanum dubium seeds extract). Time effect 0, 15, 30, 45, 60, 75, 90, 120 and 150 days was studied at 30°C on the prepared cheese, kept at room temperature as well as in the refrigerator at 5±1°C. Cheese analysis includes pH and the percentage content of moisture, salt, fat … …American Journal of Applied Sciences, Vol. 6, Issue 4 · 30 Apr 2009 · 7,327 accessesView PDFCite
Research ArticleOpen accessIn the abstractAnalysis of Certain Tetracyclines and Oxytetracyclines through Charge Transfer ComplexationKhairi M.S. FahelelbomProblem statement: Several studies were carried out to develop and validate a simple, rapid and accurate spectrophotometric method for the analysis of tetracycline (TC) and oxytetracycline (OTC) in the pure form and in pharmaceutical dosage forms, despite the varieties of these analytical techniques, the literature revealed that no spectrophotometric method for determination of tetracycline and oxytetracycline using charge transfer complexation … …American Journal of Pharmacology and Toxicology, Vol. 3, Issue 3 · 30 Sep 2008 · 8,528 accessesView PDFCite
Research ArticleOpen accessIn the abstractImproving Coordination and Communication in Distributed Software Development through Context-Based Software Artifacts Awareness: A Controlled ExperimentRafael Leonardo Vivian, Elisa Hatsue Moriya Huzita, Renato Balancieri et al.Distributed Software Development (DSD) has brought many competitive advantages, such as increased productivity, improved product quality and cost reduction. However, the geographic and temporal distances and sociocultural differences between distributed teams, expanded some challenges and, above all, added new requirements with regard to communication and coordination. This scenario has influenced on the software artifacts that are produced and/or modified, because … …Journal of Computer Science, Vol. 14, Issue 11 · 15 Nov 2018 · 7,158 accessesView PDFCite