Results 251 to 260 of about 254,019 (304)

On the sampling distribution of clement's capability index

Communications in Statistics Part B: Simulation and Computation, 2000
Most of the research effort concerning the development and statistical study of capability indices has been devoted to normal processes. In this paper a statistical study of a capability index for non-normal processes proposed by Clements (1989) is developed.
Linda Lee Ho
exaly   +2 more sources

Entrepreneurial Capability Index

2020
People of a county might be extremely capable to start a business but probably, because of some adverse environmental conditions, they will not be able to launch an appropriate business. Hence, it seems that considering both individual and environmental factors together will be helpful to present a guideline for people to run an efficient business.
Nezameddin Faghih, Ebrahim Bonyadi, Lida Sarreshtehdari   +2 more
openaire   +1 more source

Measuring process capability index C pmk with fuzzy data and compare it with other fuzzy process capability indices [PDF]

Expert Systems With Applications, 2011
The index Cpmk is a well-known loss-based process capability index. It can reveal more information about the location of the process mean compared with other classic process capability indices.
Mohammad Abdolshah, Tang Sai Hong
exaly   +2 more sources

Properties of Estimators of the Process Capability Index

Communications in Statistics - Simulation and Computation, 2012
The capability index is designed for an in-control process with asymmetric tolerances. In this article, the density function of the natural estimator is derived. The expression is in terms of finite sum and only involves standard normal distribution. Four ensemble estimators for are proposed. A simulation study is conducted due to the complexity of the
Sy-Mien Chen, Ta-Jung Tsai
openaire   +1 more source

Another Look at the Process Capability Index

Quality and Reliability Engineering International, 2006
Process capability indices (PCIs) have been widely used in manufacturing industries. In this paper, we take a very specific view that a proper value of the process capacity index (PCI) represents the true yield of the process. Following this logic, a universal PCI, Cy, is proposed and derived.
Min-Te Chao, Dennis K. J. Lin
openaire   +1 more source

Imaging capabilities of a long gradient-index rod

Applied Optics, 1981
Bundles of small diameter homogeneous optical fibers have been used extensively to transmit spatial information. Because these fibers are non-imaging, the resolution of the bundle is limited by the size of the individual fibers, and the total number of points that can be transmitted is limited by the number of fibers in the bundle.
L G, Atkinson, D T, Moore, N J, Sullo
openaire   +2 more sources

A robust process capability index

Communications in Statistics - Simulation and Computation, 1998
The existing process capability indices (PCI's) assume that the distribution of the process being investigated is normal. For non-normal distributions, PCI's become unreliable in that PCI's may indicate the process is capable when in fact it is not. In this paper, we propose a new index which can be applied to any distribution.
Arthur B. Yeh, Sumankumar Bhattcharya
openaire   +1 more source

On Generalized Quality Capability Index

Calcutta Statistical Association Bulletin, 2013
Abtsrcat A Generalized Process Capability Index, defined as the ratio of proportion of specification conformance (or, process yield) to proportion of desired (or, natural) conformance, has been developed by Maiti et al.(2010). Almost all the process capabilities defined in the literature are directly or indirectly associated with this
Sudhansu S. Maiti, Mahendra Saha
openaire   +1 more source

The Taguchi Capability Index

Journal of Quality Technology, 1991
The process capability indices Cp and Cpk are widely used to provide unitless measures of process potential and performance. These indices do no adequately address the issue of process centering. An alternative definition of Cp advocated by Taguchi addr..
openaire   +1 more source

A practical implementation of the process capability index

Journal of Statistics and Management Systems, 2007
Summary: The generalization \(C_{pm}^{\prime\prime}\), a modification of the process capability index \(C_{pm}\), not only takes the proximity of the target value into consideration but also takes into account the asymmetry of the specification limits.
Lin, P. C., Chung, Y. T.
openaire   +2 more sources