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| Dean Sicking, in red coat, director of
UNL's
Midwest Roadside Safety Facility, explains the
technology behind
the SAFER wall roadside barrier system to
NASCAR and IRL officials
during testing April 24 of the wall
at the Lincoln Municipal
Airport. At right is NASCAR
President Mike Helton. |
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Midwest Roadside Safety Facility crew members
have conducted two sets of crash tests at Lincoln Municipal Airport
recently. During the first test, a concrete wall with no support
was used. The SAFER wall, built by UNL researchers, was tested
in the second round.
Above: A car crashes into a
concrete wall without SAFER technology
during the first
crash. |
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| Above left: Researchers look at the first
car
after it was crashed in the top photo. Concrete walls
without
SAFER barriers were used in that crash. |
Above right: Researchers study the second car,
which was driven into a wall featuring the SAFER technology. |
Energy-absorbing
wall to be used at
Indianapolis 500 race on May
26
UNL scientists work to make races
SAFER
By Kelly Bartling, University Communications
After more than three years of research and painstaking documentation
of 20 crashes, researchers at the Midwest Roadside Safety Facility
at the University of Nebraska-Lincoln were at Indianapolis Motor
Speedway May 1 to see the first installation of an energy-absorbing
wall. Their international breakthrough was announced at a news
conference and featured in news reports around the globe.
The barrier technology, now constructed on the speedway turns
for the May 26 Indianapolis 500, is a huge feat for the engineers
at Nebraska.
The technology is a wall safety enhancement
that could make
this dangerous sport safer, the UNL researchers
said.
"We're trying to make impacts less strenuous on
the drivers
in the racecars and reduce the potential for serious
injuries,"
said Ron Faller, research assistant professor at
the Midwest
Roadside Safety Facility. Faller, facility director
Dean Sicking
and John Rohde, associate professor of civil
engineering, were
in Indianapolis to unveil the barrier in the
much-anticipated
announcement just weeks before the Indianapolis
500 race.
The barrier system, named SAFER (Steel and Foam
Energy Reduction)
by the Indy Racing League, works as an energy
absorber, dissipating
the impact energy and distributing it over a
longer distance
of the wall without propelling the vehicle back
into the high-speed
traffic. The system has an outer steel skin
formed with structural
steel tubes welded on top of one another to
form an impact plate.
Underneath is as much as 14 inches of
energy-absorbing plastic
foam in polystyrene blocks spaced behind
the steel skin to absorb
the impact.
"The
overall wall system is designed to attenuate some
of the kinetic
energy coming in from the impacting vehicle and
mitigate the
severity of the crash had it contacted a concrete
wall,"
Faller said. "The impact should be less severe
when it
contacts our energy-absorbing wall."
The project began
in January 1999 when IRL officials asked
the roadside safety group
to assess the high-density polyethylene
barrier then in use at
Indianapolis. From there, UNL engineers
created an alternative
design using the steel-on-foam technology
and IRL asked them to
continue with the prototype and test the
design. While the
engineers were in the design and testing phase,
NASCAR driver Dale
Earnhardt was killed in a wall-impact crash,
increasing public
interest in the technology. NASCAR officials
had earlier joined in
the development and research.
Faller said 20 vehicles have
been crash-tested at the facility's
test site at the Lincoln
Municipal Airport. The tests included
12 race cars - including
Winston Cup cars and open-wheeled Indy-style
race cars - at speeds
of as much as 150 miles per hour at varying
impact velocities and
impact angles against the new energy-absorbing
barrier and regular
concrete barriers, which were used as control
measures. The data
from the tests were analyzed and provided
to IRL and NASCAR
officials.
Jim Holloway, a research associate engineer of
civil engineering
and the crash site director, oversaw all 20
crashes and the data
collection and management on each.
"We're studying the forces out there, the dummy data
and
then all the photography during the wall impact," Holloway
said. "Whenever you're developing a product to make it safer,
you have to have data. And of course in real races they don't
equip
these vehicles with high-speed cameras nor the number of
accelerometers used in our crash-testing program.
"That's exactly what these tests are for, to prove the
benefits of our system."
Holloway and the safety
facility's team of more than 30 engineers
and staff used as many as
18 high-speed cameras operating as
fast as 500 frames per second to
capture every split second of
the crash impacts.
"These impact conditions are critical because in order
to
do a comparison you must have similar impact conditions, with
the
angle, the speed and the weight of the vehicle, to compare,"
Holloway said.
Actual cars costing as much as $200,000 were
used in the final
phases of the research.
"This
is from the Penske team, it's the No. 2 car with
driver Rusty
Wallace," Holloway explained at a test in April.
"It's a
real car and was racing this year. We need to know
structurally the
strength of the car, is it one that they're
using now, has it had
safety improvements that all becomes a
factor in this
testing."
The energy-absorbing barrier design can be
modified between
races to accommodate different race car styles,
open-wheeled
and stock, which is important because some racetracks
run different
styles of cars on the track on different weekends.
The design
allows track operators to add or subtract layers of foam
depending
on the car style. The track operators did the
installation, which
was checked May 1 by the UNL roadside safety
team. The SAFER
system may be under consideration for use at other
racetracks
throughout the United States.
The research
is important not only because of the high-visibility
nature of
racing sports, but because the knowledge gained benefits
roadside
safety research.
"Right now, we only have the design
developed for racetrack
applications, but we are considering what
avenues exist for taking
this technology into the roadside
community and applying it along
our highways," Faller said.
"We haven't done any development
work for highway applications
at this time. It could be fairly
expensive and it might have
limited applications."
"That's what our mission
is here. To save lives on the
roadside."
Andreasen
to give commencement address
Dr. Nancy C. Andreasen, Andrew H.
Woods chair of psychiatry
at the University of Iowa College of
Medicine in Iowa City, will
give the address at UNL commencement
exercises May 11.
UNL Chancellor Harvey Perlman will
preside over the ceremony,
which begins at 9:30 a.m. in the Bob
Devaney Sports Center. Approximately
1,950 students will receive
diplomas, including 105 at separate
commencement exercises for the
College of Law, which begin at
3 p.m. May 11 at the Lied Center for
Performing Arts, 301 N.
12th St.
Dean Steven Willborn
will preside at the Law College ceremony.
Judge William Jay Riley
of Omaha, circuit judge for the 8th U.S.
Court of Appeals and a
1972 graduate of the college, will be
the speaker.
A
hooding ceremony for those receiving doctoral degrees will
be
conducted at 3:30 p.m. May 10 at Kimball Recital Hall, 11th
and R
streets. Doctoral degree recipients will receive their
diplomas at
the May 11 commencement exercises.
All ceremonies are free
and open to the public.
A drop-off area for graduates and
mobility-restricted guests
will be available on the south side of
the Devaney Center on
May 11. Sign-language interpreters for
hearing-impaired individuals
will be provided through the
HuskerVision screens. Reserved seats
for guests who are ambulatory
restricted will be available next
to the stage on the arena floor,
as well as in Section B-11.
Guests in wheelchairs will be seated on
the northeast corner
of the arena floor. Golf carts will be at the
ramps on the exterior
north and south sides of the Devaney Center
to assist disabled
guests entering and leaving the building.
Tickets are not required.
Andreasen is actively involved in
neuroimaging research and
has written two widely praised books for
the general public,
"The Broken Brain: The Biological
Revolution in Psychiatry,"
and more recently, "Brave New
Brain: Conquering Mental Illness
in the Era of the Genome."
She is editor in chief of the
American Journal of Psychiatry. She
earned a bachelor's degree
(1958) and a Ph.D. (1963) at the
University of Nebraska and a
master's degree (1959) at Radcliffe
College in Cambridge, Mass.,
before turning to medicine and earning
her M.D. degree at the
University of Iowa (1970). She is a
recipient of the National
Medal of Science.
She will
also be awarded an honorary doctor of humane letters
degree.
Other awards to be presented include an honorary doctor of
science degree to Mary Hanson Pritchard of Lincoln, professor
emeritus of museum and biological sciences at UNL; the Builders
Award from the University of Nebraska board of regents to Neal
and
Leone Harlan of Valley for their service to the state and
the
university; and Nebraska Alumni Association Distinguished
Service
Awards to Herbert E. Howe Jr. of Lincoln and William
Keeney of
Indialantic, Fla.
Pritchard will receive the honorary
doctorate 53 years after
not being allowed to pursue a Ph.D. in
zoology at NU. A Lincoln
native, she graduated from Teachers
College High School and earned
a bachelor's degree with distinction
in business administration
(1946) at NU. While taking an
introductory biology course to
meet the requirements for her
business degree, she discovered
parasitology and stayed at the
university to earn a master's
degree in zoology (1949) under
Professor Harold Manter. Although
she won the Wolcott Award, the
top award given to a graduate
student in zoology, the zoology
department at that time did not
accept women for doctoral programs,
and she was denied entry.
Pritchard applied for an International
Exchange Scholarship to
study with Jean Baer, a leading
international parasitologist
at the University of Neuchatel in
Switzerland, only to be turned
down again because NU did not
participate in the IES program.
In 1948, however, she had
taken a job as technical assistant
in charge of records at the
University of Nebraska State Museum,
beginning what proved to be a
long and productive career at the
university as a scientist and
teacher. She became an instructor
of parasitology in 1950,
assistant professor in 1968, associate
professor in 1974 and
professor in 1980. She also served as curator
of parasitology at
the NU State Museum from 1980 until her retirement
in 1993.
The Harlans two years ago made a surprise announcement of
a gift
to the University of Nebraska Foundation that created
the first
named vice chancellorship in the NU system, the Neal
and Leone
Harlan vice chancellorship of the Institute of Agriculture
and
Natural Resources, and honored Irv Omtvedt on his retirement
as
vice chancellor of IANR. The gift includes an annual salary
stipend
for the IANR vice chancellor and flexible funds for presenting
Omtvedt Innovation Awards to faculty, staff and students. Over
the
years, the Harlans' gifts have benefited the Lied Center,
the
Nebraska Leadership Education Action Program and the Agricultural
Research and Development Center. They also funded two professorships,
the Neal E. Harlan professorship of agribusiness and the Judge
Harry A. Spencer professorship of law, honoring Leone Harlan's
father, a former Nebraska Supreme Court judge and an NU graduate.
Religious
studies professor's work sheds
light on Middle East conflict
By Kelly Bartling,
University Communications
Nebraskans trying to understand
the conflicts in the Middle
East often turn to recent newspaper
headlines.
But examining sources from history like the
Torah, Koran and
even architectural relics in Jerusalem may shed
more light on
the complicated details of the 2,500-year struggle
between Jews,
Muslims and Christians in Israel.
UNL
classics and religious studies professor Sidnie White
Crawford is
in a unique position to point out details of the
long-standing
conflict because of her specialization in Hebrew
Bible, her many
visits to the Middle East and her research on
the Dead Sea Scrolls.
A recently established lecture on religious
history, the Larry
Doerr Lecture through the United Ministries
in Higher Education,
gave her a chance to explain highlights
of the historic
conflict.
The often violent struggle over control of this
important
holy land in the Middle East, especially Jerusalem, dates
back
to generations before Christ when the first temples were
constructed,
grew more complicated when the prophet Muhammed
revealed the
teachings of Islam and declared Jerusalem as a holy
site, and
is marked with sometimes violent overthrows such as the
Christian
Crusades. The struggle includes religious beliefs and
power,
and rights over and ownership of places that people of
different
faiths believe to be holy.
"Within
this struggle, people have abused religious symbols
and used them
as part of their game," Crawford told the
Doerr Lecture
audience. "Tensions around the rights of the
groups around
these holy places are ready to rise forth, and
these holy places
become potent symbols in a national struggle."
Crawford maintains an interesting perspective on the Middle
East
because of her research of the ancient Dead Sea Scrolls,
which were
discovered in 1947 by a shepherd in the cliffs of
Qumran. They
include the oldest known copies of Old Testament
scriptures,
including the Torah, and date from 250 B.C. to 70
A.D. Her work has
taken her many times to Qumran and Jerusalem,
where she has seen
the violent struggle firsthand while continuing
her research on the
scrolls. She is president of the W.F. Albright
Institute for
Archaeological Research in Jerusalem.
Crawford showed that
one must first understand history before
trying to make sense of
today's Israeli-Palestinian conflict.
While Jews and Christians
argued for control of Jerusalem holy
sites in the first centuries
A.D., in 610, the prophet Muhammed
received his first revelation
and the religion known as Islam
began. Muhammed sought the
destruction of paganism, not of Judaism
or Christianity, and Islam
held three holy places, Mecca, Medina
and Jerusalem, which became
the first direction of prayer, or
"Qiblah." Jerusalem was
also identified as the "remote
house of worship," or
"Al Aqsa" in Muslim tradition.
"This
identification finds an analog in the Hebrew bible,"
Crawford
said. "The book of Deuteronomy calls for the worship
of Yahweh
to take place in the place where Yahweh has declared
his name will
dwell. There is no name given to that place but
obviously under
Jewish tradition, that is understood to be Jerusalem.
And although
there is no name given to this remote house of worship
in the
Koran, Islam understands it to be Jerusalem."
In the
19th century, the primarily religious struggles gave
way as secular
government finally came to Jerusalem under the
Egyptian Muhammed
Ali, and at this time Jews and Christians would
rank in equality
with Muslims.
"This doesn't sound too interesting
except when you realize
that until this time, Jerusalem was ruled
by religious law,"
Crawford said. "One religion had
always controlled it, and
suddenly it was to be controlled by
secular law, and all its
residents were now to have certain rights
as residents of the
city and to be equal."
"Often the Muslims and Christians had been pitted against
each
other, but now the rise of the modern Arab ethnic identity
makes
them allies, so that now the modern Palestinians include
both
Christians and Muslims. This is something to take note of,"
she said. "And the clash of two movements set up the modern
conflict with their religious claims already in place. Nothing
has
changed really since the post-crusader period when it comes
to the
religious claims of the area. Tensions around the rights
of the
groups around these holy places are ready to rise forth,
and these
holy places become potent symbols in a national struggle."
Crawford said she is most alarmed now by the recent suicide
bombings.
"This is an awful thing that has begun in
the last 18
months, and it shows troubled people who are so
desperate and
misguided that they believe the way to make a
statement is to
kill a lot of people while blowing themselves up at
the same
time. This is a very crazy phenomenon," she said.
"I
don't think that fanaticism can be halted entirely, except
by
the majority of the people within the group saying 'this is not
appropriate behavior. We have a better future than this.' I think
that's part of what our role needs to be in the U.S. - ensuring
that better future."
While questions at the lecture
centered on the current political
climate, negotiations and the
U.S. role in the peace process,
Crawford reminded the audience that
peace will take time, given
the history.
"This
is a struggle between two peoples for their national
survival. I
hope that they can reach peace so they can live together
that way.
That's what I hoped for. I think the last 18 months
have made that
much more difficult. I think the level of distrust
that has to be
overcome on both sides is immense. I feel deep
sympathy for both
sides and have friends on both sides and I
think that as Americans
we should want our government to assist
in this process as much as
we can. For ethical and moral reasons,
and not just because of
politics.
"I'm not sure (peace) will happen now in my
lifetime,
but I had hoped it would. You have to live in hope,
because what's
the alternative?"
White Crawford
agreed that many in the United States tend
to side with the
Israelis because of the closer relationship
between Jews and
Christians, but said as the U.S. Muslim population
grows, so does a
greater understanding of the Muslim faith and
Arab concerns.
"One of the things I tell my students is that one way
to
educate yourselves is to read alternative media outlets. Don't
count on just one. Then you have to judge for yourself, and that's
hard. We should always be self-reflective."
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