1. science
2. engineering

Winter
2014
Winter 2014
The Nebraska Engineer
The
Nebraska
Engineer
Nebraska Society of Professional Engineers – A state society of the National Society of Professional Engineers
Controlling Mother
Nature
by Stephen J. Reiners, PE
Do you remember that classic
television commercial for a particular
brand of margarine where Mother
Nature was tricked into thinking she
was tasting butter instead of
margarine? Upon learning that she’d
been hood-winked, a visibly perturbed
Mother Nature boldly pronounced that
“It’s not nice to fool Mother Nature!”
and with the flick of her hands, a loud
clap of thunder was heard as the
skies darkened with rain-filled clouds.
Had Mother Nature invoked her
storms in Gothenburg, Nebraska, the
folks at the Monsanto Water
Utilization Learning Center located
there would have fooled her again.
Engineers with Monsanto engaged the
services of two (2) Nebraska
companies that employ members of
the Nebraska Society of Professional
Engineers (NeSPE) to design what
they refer to as a Rainout Shelter.
Behlen Building Systems, a division of
Behlen Mfg. Co. collaborated with
REDI Engineering, Inc., both
headquartered in Columbus,
Nebraska, to manufacture the
equivalent of a 12,800 square foot
umbrella.
For years, Monsanto had been
seeking to better understand the
Nebraska environment and the
relation between corn yields’
responses to varying applications of
water. Previous studies had been
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conducted in open fields but, for the
most part, these studies were at the
mercy of Mother Nature; little or no
control had been exercised over
naturally occurring precipitation as an
environmental factor. The Rainout
Shelter in Gothenburg has changed all
of that by removing precipitation as a
variable. By carefully managing the
timing and magnitude of water inputs,
Monsanto is able to study the soilwater-plant relationship that leads to
yield response but in a more
controlled environment.
Due to the great variability of annual
precipitation in Nebraska, Gothenburg
is a perfectly suited location since it’s
considered to be in the transition zone
between dryland farming to irrigated
farming. With its average
precipitation of 23 inches per year,
Gothenburg splits the difference
between the 34 inches per year
average precipitation for eastern
Nebraska and western Nebraska’s
annual average of 14 inches.
According to Monsanto literature,
farmers in dryland areas face
increased weather and drought
variability while those in irrigated
areas face restrictions on pumping
water for their crops. Results from
the research at the Monsanto Rainout
Shelter helps farmers make better
decisions and build better systems for
managing risk in water-stressed
areas.
Volume 40 No. 2
(REDI Engineering) and their
associates teamed up to design an
80’ x 160’ building system on rails.
Behlen Building Systems designed the
primary and secondary framing and
cladding systems of the building’s
shell while REDI Engineering designed
the foundations and rail systems to
enable the building to traverse the
360’ length of its track. Vertical and
horizontal forces from dead and live
loads and environmental loads such
as snow, seismic, and wind along with
inertially induced loads from the
building’s movement along it track
were considered in the Behlen
Building Systems design and in REDI
Engineering’s design of the foundation
and rail system.
Behlen Building Systems senior
design engineer, Tom Moore, PE (also
an NeSPE Northeast Chapter
member) had to give due
consideration to the fact that this
building system was not going to
have the stable, fixed foundation
supports that conventional buildings
have and how that was going to
influence and affect the building
system’s strength and serviceability
performance. Since the maximum
horizontal thrust at the bases of the
building system’s columns was about
18,000 pounds, conventional rails like
the types used in modern railroad
applications couldn’t be used due to
their low torsional stiffness
NeSPE Northeast Chapter members
Steve Reiners, PE (Behlen Building
Systems) and John Thomazin, PE
Continued on page 4
The Nebraska Engineer
Winter 2014
The Nebraska Engineer
2014-2015 NeSPE BOARD OF DIRECTORS
ArticlePage
Controlling Mother Nature................. 1, 4
Message from our President..................3
President
James Goedert, P.E., FNSPE
Omaha, NE
Vice President
Karen Sterling, P.E., LEED
Lincoln, NE
Legislative Luncheon........................ 5, 6
P (402) 880-3138
P (402) 472-5253
jgoedert@mail.unomaha.edu
kstelling2@unl.edu
President Elect
Kyle Vohl, P.E.
Omaha, NE
Secretary/Treasurer
Jan L. Bostelman, P.E.
Brainard, NE
P (402) 895-4700
P (402) 545-3871
kvohl@eacg.com
jbostelman@wildblue.net
First Vice-President
Matt Kruse, P.E.
Omaha, NE
Past President
Doug Holle, P.E.
Lincoln, NE
P (402) 496-2498
F (402) 496-2730
P (402) 488-2500
Matt.Kruse@LRA-Inc.com
dholle@schemmer.com
2014-2015 Board of Directors...............2
Newly Licensed Professionals............... 7
Computers to see in 3 D................... 8, 9
Put the Brakes On.............................. 9
Legislative Update...............................9
Chapter Updates......................... 10, 11
Sponsors.......................................... 12
Second Vice-President
Chuck McCumber, P.E.
Columbus, NE
House of Delegate
Karl Fredrickson, P.E.
Lincoln, NE
P (402) 564-3171 x245
P (402) 323-6572
mccumber@loup.com
fredrickson@pbworld.com
NeSPE STATE OFFICE
PO Box 6356
Lincoln, NE 68506
(402) 875-2800-P
Executive Director
Katy Boggs
katy.boggs@nspenebraska.org
Lobbyist
Gordon Kissel
gkissel@kisseles.com
Lobbyist
Joe Kohout
jkohout@kisseles.com
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The Nebraska Engineer
HAS YOUR CONTACT
INFORMATION CHANGED?
All changes MUST be made
through NSPE Member Services.
How? Send an email to
memserv@nspe.org
Questions?
Call 1.888.285.6773
Winter 2014
The Nebraska Engineer
From the President’s Pen
By James Goedert, P.E.,
NeSPE President
I want to wish you all a belated Happy
New Year and hope your year is going
well. NeSPE is off to a quick start this
year with our legislative luncheon
already behind us. You can read more
about it on page 5.
As we reflect about our year’s
accomplishments and the challenges
of the New Year I am reminded and
inspired by engineering
accomplishments from the last 100
years. One hundred years ago World
War I was in full swing and
submarines were being widely used
for the first time. In 1915 the first
neon tube sign was invented. That
same year, Alexander Graham Bell
made the first phone call from New
York to Thomas Watson in San
Francisco. Thomas Edison could have
recording that conversation with his
newly invented transcribe machine.
Ford Motor Company manufactured its
1 millionth Model T and NACA, the
predecessor to NASA, was created.
These amazing engineering
accomplishment were dwarfed by the
expansion of engineering’s role
serving civilization during the
subsequent century.
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There can be no question that the
rate of technological change in our
engineered world is increasing. Some
say that rate of change is
“logarithmic” meaning that we
experienced the same amount of
change in the last ten years as we did
in the previous one hundred years.
This is not so unimaginable if we look
back to 2005 when YouTube was first
launched in the United States. That
same year Steve Fossett became the
first person to fly solo around the
world with no stops or refueling.
Additionally, the Airbus A380 made its
original flight from Toulouse, France.
NASA 10 years ago grounded the
space shuttle to investigate a flawed
design in the external tank foam.
It is impossible to fathom what the
next 100 years will bring but we
glimpse the future through the
changes occurring before our eyes. In
2014, we saw the invention of the
hover board, improvements in
3-dimensional printing capabilities,
tablets replacing laptops, watches
replacing cell phones, and cars that
drive themselves.
As engineers, we must consider the
full effect of the built environment on
the natural environment concerning
climate change and global pollution.
Wikipedia defines sustainable
engineering as “the process of
designing or operating systems such
that they use energy and resources
sustainably, i.e., at a rate that does
not compromise the natural
environment, or the ability of future
generations to meet their own needs.”
As engineers, we accept the challenge
to balance the risk to our natural
environment with the rewards of our
built environment like the case for
pipelines through our Sandhills.
Some of the sustainable engineering
developments that we can expect to
see and incorporate into our designs
The Nebraska Engineer
over the next ten years will include
zero net energy buildings with
wireless electricity. Genetically
modified crops will include vitamin,
minerals and/or proteins needed to
feed the world. Travel will become
more energy efficient and probably
less significant. An earpiece will allow
us to understand someone speaking
to us in a foreign language. Lockheed
Martin expects to have nuclear fusion
reactors small enough to fit on the
back of a truck. Each of these
developments is significant enough by
themselves for us to rethink how we
design the entire built environment of
the future and this is just to name a
few. Engineers are challenged like
never before to consider designs that
will be responsive to the rapid
changes in our technological
development many of which we have
yet to imagine. I expect that each of
us will rise to that challenge and for
this I am proud to call myself an
engineer.
Winter 2014
The Nebraska Engineer
Controlling Mother
Nature
Monsanto Gothenburg
Learning Center
(continued from page 1)
.John Thomazin, PE, elected to
employ a chain-and-sprocket drive
system to provide for the mobilization
mechanism for the Rainout Shelter.
Other key engineering challenges for
this project included synchronizing
movement of the drive system,
engineering and manufacturing the
rails, providing for remote control of
the building’s drive mechanism and
movement, and stopping and
anchoring the building after
movement had been arrested.
In a recent broadcast on Lincoln,
Nebraska’s KLKN-TV Channel 8, Mark
Reiman, an agronomist at the
Gothenburg Water Utilization Learning
Center, reported that the Rainout
Shelter allows for irrigation research
to be conducted whenever they want,
regardless of how much it rains.
According to Reiman, “When it rains,
the building actually senses the
raindrops and pulls closed to cover
the 36 corn plots that are underneath
it.”
For those wanting to get a closer look
at the Rainout Shelter, the Learning
Center is located approximately two
(2) miles south of Gothenburg,
Nebraska on the east side of Highway
47. The following Internet link can
provide more information on the
research being conducted there:
www.monsanto.com/
improvingagriculture/pages/
gothenburg-water-utilization.aspx
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The Nebraska Engineer
Winter 2014
The Nebraska Engineer
Professional Engineers Coalition Legislative Luncheon
Presented by NeSPE
The Nebraska Society of Professional Engineers
partnered with the Professional Engineers Coalition
to host our annual legislative luncheon held at The
Nebraska Club in downtown Lincoln on January 20.
The luncheon featured several guest senators and
keynote remarks provided by Governor Ricketts.
Members were briefed on current legislative issues
related to the engineering industry prior to the
luncheon.
The Nebraska Society of Professional Engineers
partnered with the Professional Engineers Coalition
to host our annual legislative luncheon held at The
Nebraska Club in downtown Lincoln on January 20.
The luncheon featured several guest senators and
keynote remarks provided by Governor Ricketts.
Members were briefed on current legislative issues
related to the engineering industry prior to the
luncheon.
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The Nebraska Engineer
Winter 2014
The Nebraska Engineer
Professional Engineers Coalition Legislative Luncheon
Presented by NeSPE
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The Nebraska Engineer
Winter 2014
The Nebraska Engineer
The Nebraska Board
of Engineers and
Architects Honors
Newly Licensed
Professional
SAVE THE DATE
The Nebraska Board of Engineers and
Architects hosted a recognition
ceremony on November 7th, 2014 to
honor the newly licensed professional
engineers and architects in the state.
Licensure is a significant achievement
for design professionals. Those
honored at this year’s ceremony were
professionals who have successfully
met rigorous licensing requirements.
These requirements vary by
discipline, but at a minimum include
obtaining a degree from an accredited
university, successfully completing an
internship to gain the required
experience, and passing a
comprehensive national exam.
NeSPE Annual Meeting
This year’s annual meeting
will be hosted by the
Southeast chapter and held
in Lincoln.
The Annual Meeting will be
held at the Nebraska
Innovation Campus on May
28th and 29th.
Many speakers have already
been lined up to talk in
depth about Innovation
Campus among other
great topics.
The ceremony took place in the
Warner Legislative Chamber of the
Nebraska State Capitol Building. The
Nebraska Society of Professional
Engineers had an informational table
as new licensees entered for the
ceremony where board members
were able to greet to potential new
members. A reception followed the
ceremony in the lower level of the
Capitol.
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Be sure to mark your
calendars!
More information
to follow.
The Nebraska Engineer
Winter 2014
The Nebraska Engineer
Top-Performing
Algorithm Allows
Computers to See in 3D
by Eric T. Psota and Jędrzej Kowalczuk
Research goals in computer vision
often appear to be straightforward.
In one well-known story from 1966, a
compute science professor at MIT
asked his undergraduate student to
“spend the summer linking a camera
to a computer and getting the
computer to describe what it saw”,
which happens to be more than a
little ambitious. Almost 40 years
later, researchers are still struggling
to make computers understand
images the way humans do.
Oftentimes, they do this by
attempting to mimic some of the
processes ongoing in the human
visual system.
As it turns out, one of the most
challenging visual processes to mimic
is human depth perception. While the
exact mechanisms governing depth
perception remain unknown,
researchers agree that a variety of
depth cues are fused in the brain to
create the sensation of depth. Depth
cues can be classified as monocular,
i.e., those observed using a single
eye, and binocular, which integrate
information from both eyes. Whereas
monocular cues can be used to sense
relative depths, binocular cues are
capable of recovering absolute
depths. Specifically, the positional
offsets between projections in each
eye can be used to triangulate the
3-dimensional coordinates of objects
in the scene. For example, when
looking straight ahead with both eyes,
the moon would experience
approximately zero positional offset.
However, if you put your hand in front
of your face, it will appear more to
the right in the left eye and more to
the left in the right eye.
The process of depth perception relies
on the ability to identify
correspondences, and hence the
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positional offsets, between objects in
the scene. In the human visual
system, this is known as stereopsis or
stereo vision. Similarly, a pair of
offset cameras can be used to mimic
the human eyes, delivering digital
images that can be processed on a
computer to estimate
correspondences. In computer vision,
the process of estimating
correspondences between a pair of
images is known as stereo matching.
Stereo matching enables a myriad of
applications. Perhaps the most
promising is robotic navigation, where
depth information is necessary for
obstacle avoidance in driverless cars,
autonomous drones, etc., or for visual
servoing in industrial automation.
Stereo matching is also capable of
reconstructing detailed geometric
models of the environment or
individual objects, where these
models can be used in mapping
software, computer games, or
applications of virtual reality. Last but
not least, the ability to extract depth
information from images has the
potential to enhance video
surveillance and object recognition –
tasks that have been traditionally
performed using only single images.
The problem of stereo matching has
been studied by the Perceptual
Systems Research Group (PSRG)
since 2010. As a unit within the
Department of Electrical Engineering
at the University of Nebraska-Lincoln,
the PSRG specializes in developing
methods that allow machines to
acquire human-like perception. The
original motivation for developing a
stereo matching system stemmed
from a cooperative effort with the
Dept. of Mechanical Engineering to
build miniature surgical robots. To
enable computer-assisted surgery, it
is imperative for these robots to fully
comprehend their environment, which
can be achieved using stereo
matching. The long-term goal of this
project is to create autonomous
surgical robots that can perform a
variety of surgical procedures with
little-to-no human interaction
necessary.
While there existed real-time stereo
matching algorithms at the time when
we began developing a vision system
for surgical robots, their real-time
performance was achieved at the
expense of accuracy. None of the
existing solutions was suitable for our
application.
A sample pair of views
(left and right) and a
corresponding depth
map, where dark shades
correspond to large depths
and light shades correspond
to small depths.
Continued on page 9
The Nebraska Engineer
Winter 2014
The Nebraska Engineer
Top-Performing
Algorithm Allows
Computers to See in 3D
(continued from page 8)
To address the need for real-time and
accurate stereo matching, we have
created a novel method that uses
probabilistic inference applied
iteratively in order to improve the
accuracy of matching. When
implemented on consumer-level
graphics cards normally used by
computer gaming enthusiasts, the
method enables matching with frame
rates sufficient for tasks such as
robotic navigation.
In the past four years, a number of
improvements have been made to the
original method. These
improvements were necessary to
overcome some of the challenges
encountered in real-world
applications. In October of 2014,
using the evaluation methodology
provided by the widely accepted
Middlebury College stereo benchmark,
our method was proven to be the
world’s most accurate real-time stereo
matching method. Currently, we are
working on ways to further improve
the method while exploring
alternative applications.
Dr. Eric T. Psota is a Research
Assistant Professor and Jędrzej
Kowalczuk is a doctoral candidate in
the Dept. of Electrical Engineering at
UNL. The problem of stereo matching
is central to the dissertation of Jędrzej
Kowalczuk, who is scheduled to
graduate in the spring of 2015. As
researchers within the Perceptual
Systems Research Group led by Dr.
Lance C. Pérez, their work focuses on
computer vision, image processing,
machine learning, and highperformance computing.
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Put the Brakes on
Fatalities Day
NeSPE’s President Jim Goedert, Ph.D,
P.E., F.NSPE, along with NeSPE Vice
President Kyle Vohl, P.E.,
celebrated Put the Brakes on
Fatalities Day with Governor
Heineman at a recent Proclamation
Signing Ceremony at the state
capitol. Held annually since 2001,
Put the Brakes on Fatalities day
serves as a great reminder in all
aspects of road safety.
President Goedert shared with the
audience some recent statistics which
demonstrate a decline;
however there is always work left to
do to increase public safety. We ask
all Nebraskans to join with the
Nebraska Society of Professional
Engineers and with the Governor in
making traffic safety a
priority on this and every day.
Legislative Update
by Matt Kruse , NeSPE PEC
Representative
The 104th Legislature was convened
on January 7, 2015, at 10:00 a.m.
There are plenty of new faces in the
Unicameral this year with 18 new
Senators joining the Legislature for
this session. With these new
changes, the NeSPE/PEC legislative
luncheon proved to be even more
important this year. The luncheon
saw a couple of other changes this
year to include hosting our luncheon a
month earlier and a new venue to The
Nebraska Club.
The Nebraska Engineer
The largest change was our
partnership with our fellow PEC
organizations to include -Nebraska
Society of Professional Engineers,
American Society of Civil Engineers
– Nebraska Section, Professional
Surveyors Association of Nebraska,
Structural Engineers Association of
Nebraska, Associate Member –
American Society of Mechanical
Engineers. The goal was to increase
the participation by both attendees of
the professional organizations and the
Senators, which we were pleased to
have quite a few of. In addition, we
were honored to have Governor
Ricketts join us and to deliver
remarks. We also thank our many
luncheon sponsors for which the
luncheon would not take place if not
for their continued and generous
support.
New Legislative Bills will have been
introduced through the first 10 days
of the session. NeSPE works with the
Professional Engineers Coalition (PEC)
and our lobbyists, Mr. Gordon Kissel
and Mr. Joe Kohout of Kissel/E&S
Associates, to review bills. PEC will
identify bills that are of interest or
could impact the engineering
profession. We will take positions and
work with the elected officials to
influence legislation or interest to
Professional Engineers. There is the
possibility that during this session
there could be separate bills
introduced for both the Engineers and
Architects Act and the Landscape
Architects Act, which PEC and NeSPE
has been watching and will continue
to closely monitor. PEC meets
regularly throughout the entire
session both in person and via
conference call to stay on top of all
issues.
Winter 2014
The Nebraska Engineer
Northeast Chapter –
NeSPE
By Stephen J Reiners P.E.,
NE Chapter of NeSPE President
The Northeast Chapter of the
Nebraska Society of Professional
Engineers has been quite busy during
these early months of the 2014-2015
term. The chapter’s Board of
Directors has met four (4) times while
three (3) General Membership
meetings have been held. General
Membership meetings are held on the
first Monday of every month at the
new Ramada Columbus/Rivers Edge
Convention Center.
John Thomazin, PE, NE Chapter
President-Elect and Programs
Chairman, has facilitated outstanding
presentations at each of the General
Membership luncheon meetings. At
the opening meeting of this term, the
membership was presented an update
on all of the current and planned
engineering projects for the City of
Columbus by Columbus City Engineer
Richard Bogus, PE. At our November
meeting, John arranged to have Steve
Masters, PE, Executive Director of the
Nebraska Board of Engineers and
Architects give an entertaining and
informative presentation titled
“Legislation, Ethics, Renewals, and
Other Stuff…”. Also at this meeting,
we were honored to welcome some of
our NeSPE State officers including
NeSPE State President, Jim Goedert,
PE, and NeSPE Executive Director,
Katy Boggs, and hosted the
subsequent meeting of the NeSPE
State Board of Directors. The most
recent meeting of the NE Chapter
highlighted the new Columbus High
School design which was presented by
Chad Wiles, Vice-President of
Hausmann Construction; one of the
focal points of this presentation was
the new STEM (Science, Technology,
Engineering, and Mathematics)
building.
Also at our last meeting, Bob Tupper
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PE, and Mark Massman, PE, gave a
short presentation on the NeSPE
Education Foundation (NeSPEEF).
Bob and Mark challenged all members
to join them in contributing to the
Engineering Foundation. To further
that effort, NE Chapter President,
Steve Reiners, PE, challenges all other
Chapter Presidents, officers, and
members to a competition to see
which chapter can make the most
significant contribution to the NeSPE
Education Foundation.
Staying with this “Education” theme,
the NE chapter was represented by
Chapter President, Steve Reiners, PE,
at a luncheon “Meeting of the Minds”
of academic and industry leaders and
representatives at the Columbus
campus of Central Community
College. The purpose and focus of
this meeting was to provide the
Science and Math faculty members of
the college with constructive feedback
on how they could better incorporate
and support the various aspects of
STEM (Science, Technology,
Engineering, and Mathematics)
needed by the business community in
the educational environment. In a
complementary effort, several NE
Chapter members have supported
fellow member John Thomazin,
Chapter President-Elect and an
adjunct instructor at Central
Community College, by speaking to
his engineering students on the
practical and real-world aspects of
being an engineer and how they can
better prepare themselves for careers
in engineering.
Brian Stepanek and Krystal Trojan,
two (2) of the NE Chapter’s younger
members have been rallying the
chapter’s troops for this year’s
Mathcounts competition. Many
chapter members have already
volunteered to help with the event
which is scheduled to be held on
February 14, 2015 at the Columbus
Campus of Central Community
College.
The Nebraska Engineer
To supplement the funding of this
year’s competition, Brian and Krystal
facilitated a Pitch Tournament on
Saturday, December 13 at Maximus, a
local Sports Bar.
The NE Chapter’s popular “Nuts” sales
fund-raiser is proving to be a great
success again! Josh Rich, NE Chapter
Secretary and Fundraising Chairman
reports that many of the varieties are
already sold out. Congratulations to
Josh for his efforts and “Thank you”
to all members who support our
chapter by participating in this annual
fundraiser.
The remaining General Membership
meetings for the NE Chapter are
scheduled for January 5, February 2,
March 2, and April 6. The venue for
the General Membership meetings is
the Ramada Columbus/Rivers Edge
Convention Center. The NE Chapter’s
Annual Awards banquet is currently
scheduled for Friday, May 1 – a venue
for the banquet has not been
determined, yet.
The NE Chapter is blessed and
privileged to have great attendance,
participation, and support by its
membership. The Chapter also
receives tremendous support by the
local businesses and employers of our
members. We’re grateful for that
support and continue to seek to
return that support by being good
representatives and stewards of our
employers, our communities, and our
profession. On behalf of the NE
Chapter, we’re hopeful that all
members and their families had a safe
and blessed holiday season! Merry
Christmas and Happy New Year!!
Winter 2014
The Nebraska Engineer
Eastern Chapter –
NeSPE
UNL Engineering Day Photos
MATHCOUNTS will be held at the
Ramada Inn on 72nd Street on
Saturday January 31, 2015. Our next
meeting will be at the Scott
Conference Center on January 27,
2015. We held a joint breakfast
meeting with IEEE in December where
the topic was the Statewide Radio
System. In November of this year we
had a presentation on the planned
168th Street project which is planned
for both north and south of the 168th
Street and West Center Road
intersection. The meeting held in
October was a joint meeting with
LOCATE and the topic was the UNO
Arena currently under construction.
Southeast Chapter –
NeSPE
SE Chapter MATHCOUNTS will be
February 21st at the East Campus
Union.
Our January meeting featured Pam
Dingman, County Engineer speaking
to tour Chapter about the county and
engineering as well as her run to be
elected County Engineer.
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The Nebraska Engineer
Winter 2014
The Nebraska Engineer
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The Nebraska Engineer
Winter 2014
The Nebraska Engineer
LEAVING A LEGACY
of
ENDURING IMPROVEMENTS
OUR COMMUNITIES
Omaha | Fort Collins
Lakewood | Kansas City
Nebraska Society of
Professional Engineers
A state society of the National Society of Professional Engineers
THANK YOU FOR YOUR SUPPORT!
WW W. LR A - IN C. C OM
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The Nebraska Engineer
Winter 2014
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Omaha, NE • 402.333.5792
Lincoln, NE • 402.479.2200
www.benesch.com
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A state society of the National Society of Professional Engineers
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The Nebraska Engineer