نتایج جستجو برای: statistical process monitoring

تعداد نتایج: 1887807  

Babkhani, Massoud , Dokouhaki, Pershang , Fatahi, Amir Afshin , Noorossana, Rassoul ,

  There are miscellaneous quality characteristics in healthcare which are interested to be monitored. However, monitoring each characteristic needs a special statistical method. There are some characteristics with very small incidence rates that it’s usually considered not to be necessary to monitoring them, since their incidence rates are so small that p and np charts are not able to monitor t...

Journal: :مهندسی صنایع 0
فاطمه حاجی احمدی کارشناس ارشد دانشکدة مهندسی صنایع، دانشگاه آزاد اسلامی واحد تهران جنوب رسول نورالسناء استاد دانشکدة مهندسی صنایع، دانشگاه علم و صنعت ایران

in many statistical process control applications, the quality of a process is characterized by a profile. a profile is a function in terms of one or more explanatory variables. in profile monitoring, one is interested to monitor the performance of a process or product using this functional relationship. control charts for monitoring nonparametric profiles are useful when the relationship is too...

The usual procedure when employing a T2 control chart for multivariate process monitoring is to take samples of fixed size n0 every h0 hours from the process. Recent studies have shown that using variable parameters (VP) schemes results in charts with more statistical power when detecting small to moderate shifts in the process mean vector. In this paper, the VPT2 control chart for monitoring t...

Journal: :journal of mining and environment 0
h. khoshdast mining engineering department, higher education complex of zarand, shahid bahonar university of kerman, kerman, iran m. mahmoodabadi mining engineering department, higher education complex of zarand, shahid bahonar university of kerman, kerman, iran

a new method is developed for a fast identification of the stability situation of industrial processes. the proposed method includes two factor ratios of the control constants for the upper and lower control limits to process these constants. an indication ratio is then defined as the ratio of the maximum data range value to the difference between the maximum and average values for individual d...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی - دانشکده روانشناسی و علوم تربیتی 1388

the aim of this study is investigating the effect of teaching “metacognitive strategies” on the way which scientific information retrieval workes by the using of google scholar searching machine on the students of ms in the psycology & education faculty of allameh tabatabayi university in 2007-2008 academic year. the statistical community was the students of ms in psychology & education facult...

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