Whole oysters were processed under a series of pressures from 30,000 to 45,000 psi at different holding times (0, 1, and 2 min) and then stored at <4°C, for 27 d. During the shelf-life study, the quality of oysters was determined by measuring pH, moisture content, and microbial counts including...
Quality Function Deployment (QFD) is a product development process that
assures the needs and desires of the customer are heard and heeded during the
design, development and production of a product. Though it has been used
successfully in other industries, only a few companies in the U. S. Engineering
and...
The purpose of this study was to investigate an application of
statistical concepts to quality control of highway construction. The
application was presented qualitatively and demonstrated quantitatively
by an investigation of asphalt content in asphalt concrete.
For the example, an Oregon State Highway Project was
sampled and tested. The average...
Published 1914. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
This publication focuses on how design of experiments can help companies solve problems in manufacturing. Part of the Performance Excellence in the Wood Products Industry series.
Flowcharts graphically represent the steps in creating a product
or service. The process of creating a chart is often beneficial
because personnel may be unaware of all the “nitty-gritty” details
involved in producing the product. Also, people often are surprised
to learn of the differences between the ideal process flow...
Part 1 in this series introduced the reader to Statistical Process Control, and Part 2 provided an overview of how and why SPC works.
Part 3 begins the step-by-step process of building the practical skills
necessary for hands-on implementation of SPC. This report discusses Pareto analysis, a tool we can...
The goal for Part 2 is to build management understanding and
confidence in SPC as a profit-making tool. It is unreasonable to expect
managers to commit to and support SPC training and implementation
if they do not understand what SPC is and how and why it works. This
publication discusses...
The objective of this series is to help improve the competitiveness of
Oregon’s wood products manufacturers. This can be achieved by fostering a companywide focus on and dedication to continuous quality improvement.
W. Edwards Deming (1982) described the “chain reaction of quality.”
1. Quality is improved.
2. Costs decrease due...
In Part 5, we now turn our attention to cause-and-effect diagrams (CE diagrams). CE diagrams are designed to help quality improvement teams identify the root causes of problems.