Library
Newsletter Archive - full copies of past Division newsletters
Statistics Body of Knowledge - our library content below focuses on the topics in this listing.
Probability of Detection Analysis for Fluorescent Penetrant Inspection Systems
Fluorescent penetrant inspection (FPI) is a Nondestructive Testing (NDT) method commonly used for flight quality assurance of commercial, military, and rocket engine hardware...
- Filetype: pdf
- Publish date: 2014-10
- Keywords:binomial regression, logistic regression, logit, probit, hit/miss analysis, probability of detection, POD, fluorescent penetrant inspection, FPI
Probability of Detection Analysis for Eddy Current Inspection Systems
Fall 2011 Mini-Paper
Eddy Current (EC) inspection is a Nondestructive Testing (NDT) method commonly used for flight quality assurance of commercial, military, and rocket engine hardware. One application of EC inspection is to detect surface or near-surface anomalies before they grow to a critical length which could impact the structural integrity of the hardware. EC inspection uses the principal of electromagnetism or the production of a magnetic field by current flowing in a conductor. Anything placed in the magnetic field that has electric and/or magnetic properties will change the field and produce an EC signal. Understanding the relationship between crack size and system response is the basis for determining the detection capability of an EC system. For a given EC system, the relationship between the EC response and crack size can be evaluated by scanning a set of standard specimens with a known number and distribution of crack sizes. The results are analyzed using the "a-hat versus a" analysis method to
- Filetype: pdf
- Publish date: 2011-10
- Keywords:Nondestructive Testing (NDT), Nondestructive Evaluation (NDE), Probability of Detection (POD), Regression, Maximum likelihood estimation, Censoring, Eddy Current Inspection, Residuals
Model Selection (Part II: Model Selection Procedures)
Overview of model selection procedures, including stepwise regression, model ranking, and model averaging...
- Filetype: pdf
- Publish date: 2011-05
- Keywords:model selection, Regression
The Future of Quality Technology: From a Manufacturing to a Knowledge Economy & from Defects to Innovations
2005 Youden Address
The Address provides some observations about the future of quality technology and where we need to focus our efforts, our professional and educational activities, and our journals. Taken from Winter 2006 Newsletter...
- Filetype: pdf
- Publish date: 2006-05
- Keywords:Innovation, Design for Six Sigma (DFSS), Statistical process control, Reliability, Response surface, Principal components, Discriminant analysis, Regression, Factor analysis
Measurement Systems Analysis - Revisited
Basic Tools Taken from the Summer 1993 Newsletter
This paper summarizes a collection of methods to study the stability and variability of measurement systems...
- Filetype: pdf
- Publish date: 1993-06
- Keywords:Measurement system analysis, Metrology, Gage repeatability and reproducibility (Gage R&R, Gauge R&R), PDSA (plan-do-study-act) cycle, Individuals and moving range (X, mR) chart, Linear regression, sources of variation
Some Aspects of Regression Methods Applied to Experimental Design Data
Mini Paper Taken from the Winter 1993 Newsletter
This paper demonstrates how we may use a regression-type approach to determine properties of experimental designs...
- Filetype: pdf
- Publish date: 1993-01
- Keywords:Regression, Interactions, Main effect