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P.S. Quote for the month: An homage to aerospace pioneer and moon-walker John Young, who passed away on January 5. (Page down to the end of this e-zine to enjoy the actual quote.) 1: Software Alert: Version 11 of Design-Expert software released and updated! We are very happy to announce the release of Design-Expert version 11 (DX11), which offers an amazing array of interface enhancements, for example, multigraph views—plus a number of refinements to its powerful statistical tools. It arrives with rave reviews from the expert evaluators for the:
Click here and scroll down to the “Features” tab for what puts the heaven in DX11. Then, assuming you like what you see, scroll back up to the link for the free 30-day trial or buy it directly, taking advantage of upgrade pricing if eligible. You will do well by gaining the leading edge on DOE capability! 2: FAQ: How many center points do you recommend for a 16-run two-level factorial? Original question from a Senior Product Development Engineer:“How many center points do you recommend for a 16-run characterization design?” Answer: I recommend 4 center points (CPs) for the 16-run or any other two-level design—provided its meant to characterize, rather than screen factors (in this latter case, do not add CPs). Fewer CPs provide too few degrees of freedom for estimating curvature, more waste time. The consensus of DOE experts comes in at a range of 3 to 5 CPs. That provides a bit of ‘wiggle-room’. It seems sensible to me that for much larger designs, sized so for power requirements, the number of CPs should be increased, for example, to 5 for a 64-run experiment. Perhaps some of our readers may weigh in with their opinions, or, better yet, quantitative research that provides a more analytical answer.
Via three world-wide webinars in February (see times below), Stat-Ease Consultant Shari Kraber will lay out her favorite features in newly-released version 11 of Design-Expert software. Enjoy an enlightening demonstration of DX11's overhauled interface and the fabulous new capabilities that come with it.
Register now for the date and time that works best for you via this GotoWebinar link. After registering, you will receive a confirmation email containing information about joining the webinar.
Researchers at Codexis, a leading protein engineering company based in the San Francisco Bay high-tech corridor, put Design-Expert to good use for a DOE aimed at improving conversion of a key intermediate in a pharmaceutical reaction. See the details in this publication by Express Pharma.
(Second Notice) Call for Speakers for the 7th European DOE User Meeting & Workshops in Paris, France. Are you interested in speaking at the 7th European DOE User Meeting & Workshops hosted by Stat-Ease, Inc. and our partner Ritme in Paris, France on June 6-8, 2018? You are invited to submit an abstract (up to 250 words) on your application of Design-Expert® software. The talks will be 25 minutes, including questions. The deadline is February 25, 2018. Learn more and submit your abstract here.
You can do no better for quickly advancing your DOE skills than attending a Stat-Ease workshop. In these computer-intensive classes, our expert instructors provide you with a lively and extremely informative series of lectures interspersed by valuable hands-on exercises with one-on-one coaching. Enroll at least 6 weeks prior to the date so your place can be assured—plus get a 10% “early-bird” discount.
See this web page for complete schedule and site information on all Stat-Ease workshops open to the public. To enroll, scroll down to the workshop of your choice and click on it, or call our Client Specialist Rachel Pollack, at 612-746-2030. If spots remain available, bring along several colleagues and take advantage of quantity discounts in tuition. Or, consider bringing in an expert from Stat-Ease to teach a private class at your site.*
Please do not send me requests to subscribe or unsubscribe—follow the instructions at the end of this message. Sincerely, Mark Mark J. Anderson, PE, CQE P.S. Quote for the month: in homage to aerospace pioneer and moon-walker John Young, who passed away on January 5:
—Legendary Bell X1 test pilot Alvin “Tex” Johnston. In later years as a tester for Boeing, Johnston did a barrel roll over Seattle’s Lake Washington with a 367-80 (aka Dash 80)—a prototype for the 707. When the company president asked him what he thought he was doing, Johnston famously responded: “I was selling airplanes”. Trademarks: Stat-Ease, Design-Ease, Design-Expert and Statistics Made Easy are registered trademarks of Stat-Ease, Inc. Acknowledgements to contributors: For breaking news from Stat-Ease go to our Twitter feed. DOE FAQ Alert ©2018 Stat-Ease, Inc. |
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