Engineered Systems Magazine

ES June 2020 Cover

2020 June

Engineered Systems magazine’s June 2020 issue examines how designers overcame numerous challenges to complete Minnesota University's Pioneer Hall and renovation project, Advanced DOAS technologies and features, and much more!

Feature Articles

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Footnote 4

Motor Control Techniques: VFDs, ECMs, and More, Part 1

An in-depth look at induction motors with voltage/frequency controlled variable frequency drives, induction motors with vector-controlled VFDs, and electronically commutated motors.
Kevin ricart
Kevin Ricart, P.E. Patrice Mulhern, P.E. Robert Pfaff, P.E.
May 28, 2020
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The topic of motors and motor control techniques is wide and varied. Part one of this two-part article will cover the principles of alternating-current (AC) motor operation and control.  


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Engineering Renovations

Engineering Renovations: Revitalizing the University of Minnesota's 90-Year-Old Pioneer Hall

Designers overcame numerous challenges to complete the $104.5 million Pioneer Hall expansion and renovation project in time for the start of the fall 2019 semester.
Deb Barnes, P.E.
May 28, 2020
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Pioneer Hall, one of four residence halls located within the University of Minnesota’s Superblock residential district, is prominently situated on the east bank of the Mississippi River on the university’s Twin Cities campus in Minneapolis. 


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Columns

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Tomorrow's Environment

Lessons Learned from the Pandemic

Those who fail to prepare are preparing to fail
Howardmckew 200
Howard McKew, P.E., C.P.E.
May 25, 2020
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The COVID-19 pandemic has been upon us for several months now, and 20/20 hindsight is asking, “Why weren’t we ready for the pandemic?” So, as I sit and listen to the daily news while “sheltering-n-place,” it got me thinking of another potential pandemic: building security and safety. 


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