Zwillinger Research Paper

Dr. Daniel Zwillinger is a Senior Principal Systems Engineer for the Raytheon Company. He was a systems requirements “book boss” for the Cobra Judy Replacement (CJR) ship and was a requirements and test lead for tracking on the Ungraded Early Warning Radars (UEWR). He has improved the Zumwalt destroyer’s software accreditation process and he was test lead on an Active Electronically Scanned Array (AESA) radar. Dan is a subject matter expert (SME) in Design for Six Sigma (DFSS) and is a DFSS SME in Test Optimization, Critical Chain Program Management, and Voice of the Customer. He is currently leading a project creating Trust in Autonomous Systems. At Raytheon, he twice won the President’s award for best Six Sigma project of the year: on converting planning packages to work packages for the Patriot missile, and for revising Raytheon’s timecard system. He has managed the Six Sigma white belt training program. Prior to Raytheon, Dan worked at Sandia Labs, JPL, Exxon, MITRE, IDA, BBN, and The Mathworks (where he developed an early version of their Statistics Toolbox).

For ten years, Zwillinger was owner and president of Aztec Corporation. As a small business, Aztec won several Small Business Innovation Research (SBIR) contracts. The company also created several software packages for publishing companies. Prior to Aztec, Zwillinger was a college professor at Rensselaer Polytechnic Institute in the department of mathematics.

Dan has written several books on mathematics on the topics of differential equations, integration, statistics, and general mathematics. He is editor-in-chief of the Chemical Rubber Company’s (CRC’s) “Standard Mathematical Tables and Formulae”, and is on the editorial board for CRC’s “Handbook of Chemistry and Physics”. Zwillinger holds a bachelor's degree in mathematics from the Massachusetts Institute of Technology (MIT). He earned his doctorate in applied mathematics from the California Institute of Technology (Caltech). Zwillinger is a certified Raytheon Six Sigma Expert and an ASQ certified Six Sigma Black Belt. He also holds a pilot’s license.

Affiliations and Expertise

Rensselaer Polytechnic Institute, Troy, NY, USA

Steven Zwillinger – an active philatelic researcher, author, and exhibitor – is the new president of the American Philatelic Research Library Board of Trustees.

Zwillinger, elected as a trustee through 2022 in last year’s APS elections, was chosen unanimously August 4 by a voice vote of the APRL board during an organizational meeting held during StampShow in Richmond, Virginia. He replaces Roger Brody, who ended eight years as president this month. Zwillinger will serve a four-year term as head of the eight-member board.

Prior to last year’s elections, Zwillinger had served on boards of both the APRL and the American Philatelic Society.

Zwillinger, of Silver Spring, Maryland, has won gold medals for his exhibits of India and Burma, and has had articles published in the Philatelic Literature Review, the Philatelic Exhibitor, as well as a regular column about exhibiting in The American Stamp Dealer & Collector. The ASD&C column culminated in last year’s publication of a how-to book for exhibitors, The Path to Gold: 175 Proven Stamp Exhibiting Tips.

Zwillinger notes in his first column in the forthcoming issue of the Philatelic Literature Review that a lot was accomplished under Brody’s leadership – from the completion of the new state-of-the-art library space at the American Philatelic Center to the acquisition of resource materials of all sorts. Zwillinger’s early goals, according to the column, include reviewing the library’s acquisition and collection policies, promoting  library holdings, and furthering technology initiatives.

As the incoming president, Zwillinger put forward four specific objectives to board members for the coming year:

– That the board draft a policy for special collections.

– That all APRL board members submit a short article for inclusion in a future issue of the Philatelic Literature Review.

–That each APRL board member be a financial contributor to the library.

–That board members share their passion for philatelic literature.

Also at the organizational meeting, Patricia Stillwell Walker, who has been serving as vice president, was re-elected as vice president.

Zwillinger appointed Ken Nilsestuen to chair a committee to create a policy for special collections.

Brody, Walker, and Don Heller were appointed as interim trustees who will serve on the APRL board until the 2019 election of new trustees, and were sworn in by APS/APRL attorney Kathleen Yurchak.



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