نتایج جستجو برای: ccc r control chart

تعداد نتایج: 1753798  

Journal: :The Kurume medical journal 2000
R Sakata A Shibata K Fukuda

In epidemiologic studies, many serum samples obtained from a large population have to be processed for measurement of fat-soluble vitamins. Quantification results by a high performance liquid chromatography (HPLC) should be stable in both intra- and inter-run, and a quality control may be performed by a X-R control chart. The present study shows that serum retinol, alpha-tocopherol, alpha-carot...

Journal: :Sleep 2023

Abstract Introduction Sleep-wake state discrepancy is a common phenomenon identified among people with insomnia where greater sleep difficulties are self-reported in comparison estimates obtained from objective assessment. This study provides the investigation into sleep-wake and correlation between diary (subjective) actigraphy-derived (objective) measures. Methods Participants included 136 ca...

Journal: :Int. J. Systems Science 2012
Ling Yang Yuh-Rau Wang Suzanne Pai

This work presents an exponentially weighted moving average (EWMA)-based synthesised control scheme for a process with outliers. Based on experience, some processes occasionally have outliers. The use of traditional mean ( X ) and range (R) control charts (denoted as X=R) for monitoring process mean and variance leads to high-level false alarms. In this study, the fast-detection technique (EWMA...

1999
Ellen Bialystok

In the analysis and control framework, Bialystok identifies analysis (representation) and control (selective attention) as components of language processing and has shown that one of these, control, develops earlier in bilingual children than in comparable monolinguals. In the theory of cognitive complexity and control (CCC), Zelazo and Frye argue that preschool children lack the conscious repr...

Journal: :international journal of supply and operations management 2014
mohammad hossein zavvar sabegh ablofazl mirzazadeh saber salehian gerhard wilhelm weber

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...

Journal: :Journal of refractive surgery 2011
Zoltán Zsolt Nagy Kinga Kránitz Agnes I Takacs Kata Miháltz Illés Kovács Michael C Knorz

PURPOSE To evaluate a laser technique and manual technique to perform capsulorrhexis in cataract eyes. METHODS Anterior capsulotomy was performed with an intraocular femtosecond laser (LenSx Lasers Inc) in 54 eyes (FS group) and manual continuous curvilinear capsulorrhexis was performed in 57 eyes (CCC group). Circularity and area of capsulotomy and IOL decentration were measured using Photos...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید باهنر کرمان - دانشکده ریاضی و کامپیوتر 1391

در این پژوهش، نخست برآوردگری برای نقطه تغییر پارامتر فرایند دو جمله ای3 که تغییر به صورت روند خطی می باشد، بر پایه تابع درستنمایی و برآورد جدیدی برای پارامتر شیب، ارائه شده است. پس از آن برآوردگر نقطه تغییر پله ای در پارامتر فرایند دو جمله ای بر پایه بهینه سازی تابع درستنمایی به کمک الگوریتم وراثتی ارائه شده است. عملکرد برآوردگرهای پیشنهادی با انجام مطالعات گسترده شبیه سازی مورد ارزیابی قرار گر...

Journal: :journal of optimization in industrial engineering 2010
ahmad ostadsharifmemar seyed taghi akhavan niaki

in this paper, first the available single charting methods, which have been proposed to detect simultaneous shifts in a single process mean and variance, are reviewed. then, by designing proper simulation studies these methods are evaluated in terms of in-control and out-ofcontrol average run length criteria (arl). the results of these simulation experiments show that the ewma and ewms methods ...

Journal: :American journal of medical genetics. Part B, Neuropsychiatric genetics : the official publication of the International Society of Psychiatric Genetics 2006
Dorothy V M Bishop Murray Maybery Dana Wong Alana Maley Joachim Hallmayer

Non-autistic relatives of people with autistic disorder have an increased risk of social and communicative difficulties: this is known as the "broad phenotype." Better methods for characterizing the broad phenotype are needed to facilitate identification of risk genes for autism. 29 siblings of 20 children with autistic disorder, 13 siblings of 9 children with PDDNOS, and 46 typically developin...

A. Gholampour B. Kaviani D. Hashemabadi Sh. Sedaghathoor

Chlormequat (cycocel or CCC), the plant growth retardant, was evaluated for its ability to control plant height in Brassica oleracea cultivar ‘Kamome White’ and ‘Nagoya Red’. Different concentrations of CCC (0, 500, 1000 and 1500 mg/L) were sprayed and drenched on plants 40 days after transplanting. Data were recorded the 60 and 90 days after transplanting. The 1500 mg/L of CCC resulted in abou...

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