Wednesday, April 25, 2018

OU Radar Team Developing New Technologies for U.S. Navy Next-Generation Radar Systems


Nathan Goodman
A University of Oklahoma Advanced Radar Research Center team is developing new antenna and related technologies for U.S. Navy next-generation radar systems with a two-year, $3.5 million grant from the U.S. Department of Defense, Office of Naval Research. The ARRC research and development program under way is designed to improve the agility and multi-functionality of radio frequency sensors and communication systems, while enabling future implementation on a variety of surfaces and platforms.

“The ARRC team is developing agile sensors that can effectively maneuver in frequency and space while retaining the ability to avoid and cancel interference,” said Nathan Goodman, director of research at the ARRC and professor in the School of Electrical and Computer Engineering, Gallogly College of Engineering. “Multi-function capability will also reduce the number of individual systems needed during deployment, improving mobility and operational agility. Our tunable, integrated antenna designs will allow agile RF sensor implementation on smaller platforms.”

The ARRC program will focus on four major areas of research: research on integrated filter-antennas that provide frequency tunability with reduced size and weight; a state-of-the-art, all-digital phased array antenna and electronics that will be synchronized with another all-digital phased array system already under development at the ARRC; implementation of dual-band, dual-polarized antennas; and algorithms for using and exploiting the agility enabled by these hardware technologies.

The ARRC team endeavors to demonstrate important technologies, such as tunable antenna arrays capable of handling high power; synchronized all-digital systems that can be used for a variety of experiments on waveforms, interference cancellation, coexistence of multiple systems and other important technologies; and state-of-the-art algorithms for controlling agile sensors.

ARRC team members involved with this project include: Goodman, Jessica Ruyle, Hjalti Sigmarrson, Mark Yeary, Jorge Salazar Cerreno, Caleb Fulton and Robert Palmer. For more information about this program or other ARRC research and capabilities, please contact goodman@ou.edu.

Monday, April 23, 2018

EATIN - A Place Where Engineering Meets Service

 

By Lea Morisato
Industrial and Systems Engineering Senior

When I was a freshman, there were several technical engineering organizations that I could join, but I had to go to other areas in the university to find a community service group. As engineering students, many of us are constantly strapped for time; thus, the organizations we participate in are typically those where we can refine our skills. It was not until my sophomore year that one of my professors, Dr. Randa Shehab, put out a call for a group of students to resurrect an organization that had previously worked with the Regional Food Bank of Oklahoma. I joined as an officer and after one volunteering session, I thought that as engineers, there is more we can do to help our community. The next semester, I became president of the organization with the goal of promoting healthy growth and blending community service with technical aspects in order to make one club that could satisfy several needs, both for the student volunteer and the nonprofit we were serving. I believe Engineers Assisting Those In Need provides a place where students of all backgrounds, classifications, and majors can come together to learn about continuous improvement while applying the valuable skills they are learning in the classrooms to help nonprofits serve more people.

To make this vision a reality, I focus on cultivating targeted volunteering sessions, where students look for specific sources of inefficiencies and identify/report areas needing improvement from a volunteer's perspective. It is vital for nonprofits to get this feedback, because while a supervisor may know what steps need to happen, they may not understand what the volunteers think or see as they go through a shift. The goal is that every time we volunteer somewhere, we are able to provide feedback to the organization to allow their future volunteers to be even more efficient. This tactic worked well for people that were free over the weekends, however, we found so much more we could do to help our community that we launched project teams. These teams work on a continuous improvement project over several months to apply their skills in a team environment. Each project was procured personally and is under close supervision to ensure the team is working effectively and that any roadblocks become a learning experience. We are available to volunteer with all non-profit organizations in our community, and are always looking for new ways to serve.

We have gained several new project partners over the past year, allowing us to have six project teams finish their work by this summer (2018). These partners include Meals on Wheels, the OU Food Pantry and Hope Retreat Ranch. For Meals on Wheels, we researched the feasibility of implementing a grocery route in addition to the regular meals they are providing, an evaluation of their volunteer management software and the development of a program with the ability to optimize driving routes to ensure volunteers have a good experience and return for future driving sessions.

For the OU Food Pantry, we coordinated an inventory day to record all of the items in the store, as well as a layout redesign to optimize the items after the pantry received a new shelf.

Lastly, for Hope Retreat Ranch, we designed playground equipment for kids of all ages, sizes, and disabilities that was built on-site in one day during our first volunteer retreat. Each project is designed and procured to add value to the organization and in the way that they need it. I am a certified Lean Six Sigma Green Belt and am pursuing my Black Belt this spring, which means I am specially equipped to identify, target and eliminate waste. I intend on sharing a lot of this knowledge with the group’s members to ensure we are continuously improving as a group.

Overall, the organization has proven to be more successful this year than I could have ever imagined. We have had more than 100 people join our orgsync portal; we are now on Facebook, Twitter and Instagram; we have conducted volunteering sessions with the Regional Food Bank of Oklahoma, Moore Food and Resource Center and OU Food Pantry; we also added three new project partners; and we had six project teams. We opened our organization to all majors, because we want to include anyone who wants to serve the community in creative ways! All of this progress happened in one year, and we still have so much we want to do!

We hope to expand to other organizations by continuing both our community service sessions as well as our project teams. We also hope to grow in size and coordinate with other groups to become the service hub for OU Engineering. Our mission is to get more engineers involved in community outreach, and the more people we can reach the better!

I have one more year of service as president of this organization, and I can’t wait to see how far we go. It is truly a place where engineering meets service, and I am so grateful for all of the opportunities we have had to serve others and for all the engineers that are getting involved in order to help make their community a better place. I believe community outreach is vital, and it is incredibly important to give back the places where we live and work. I am truly blessed to be able to encourage more engineers to take a break from the textbooks and apply their valuable skills in such a special way, and I believe that everyone can and should be involved with EATIN in one way or another.

Monday, April 9, 2018

OU Engineering Senior Wins Grand Prize at 2018 Research Day at the Capitol

A University of Oklahoma Mechanical Engineering Senior in the Accelerated Bachelor and Master of Science program, Devin W. Laurence, is the Grand Prize winner at the 2018 Research Day at the Capitol, sponsored by the Oklahoma State Regents for Higher Education, Oklahoma Established Program to Stimulate Competitive Research and National Science Foundation. Laurence was one of 23 undergraduate student researchers who presented poster presentations based on a technical abstract and five-minute presentation for review and evaluation by a panel of EPSCoR-appointed judges.

“Congratulations to Devin on his outstanding achievement. What a great success from our student representing cardiovascular biomechanics research at OU,” said Chung-Hao Lee, master’s thesis advisor and assistant professor in the School of Aerospace and Mechanical Engineering, Gallogly College of Engineering. “Laurence presented, ‘An Integrated Experimental-Computational Approach for Multiscale Investigations of Atrioventricular Heart Valves with Applications to Individual-Optimized Surgery Planning.’”

As the Grand Prize winner, Laurence is the recipient of a $500 award, plus a $4,000 summer research internship. A $2,500 award is given to the sponsoring Oklahoma college or university laboratory to offset expenses of hosting the internship. In this case, OU’s Biomechanics and Biomaterials Design Laboratory (http://www.ou.edu/coe/ame/bbdl.html) will receive the award for conducting cutting-edge research in cardiovascular heart valve biomechanics.

Research Day at the Capitol was established more than 20 years ago to showcase the outstanding undergraduate research being conducted at Oklahoma’s colleges and universities in the areas of science, technology, engineering and mathematics. Students are nominated by their institution’s leadership to participate in the prestigious event. Students present their research to state legislators and the public in the Capitol Rotunda during the legislative session.

Winners were announced at the conclusion of Research Day during an awards ceremony held on March 27 in the Capitol’s Blue Room. For more information, contact Gina Miller, Outreach Coordinator, at gmiller@okepscor.org.










Wednesday, March 28, 2018

Gallogly College Graduate Students Advance in OU Three Minute Thesis (3MT®) Competition


From left: Lin Guo, First Place, ISE Ph.D. Student; Patrick McKernan, Runner-Up, SBME Ph.D. Student; and Bhagyashree Waghule, Runner-Up, AME Ph.D. Student 
Four graduate engineering students participated in the annual Three Minute Thesis (3MT®), a research communication competition developed by The University of Australia and held at more than 200 universities worldwide. Competitors are tasked with presenting their master’s or doctoral research in three minutes, conveying the major research points in an interesting and concise manner.  

The 3MT® at OU began with preliminary competitions Jan. 29 through Feb. 1, at which time ten students were selected to advance to the final competition Feb. 23. Among the ten finalists were – Lin Guo (advisors Drs. Farrokh Mistree and Janet Allen) and Saptarshi Mandal (advisor Dr. Ziho Kang) from the School of Industrial and Systems Engineering; Byagyashree Waghule (advisor Dr. David Miller) from the School of Aerospace and Mechanical Engineering; and Patrick McKernan (advisor Dr. Roger Harrison) from the Stephenson School of Biomedical Engineering. 

Patrick McKernan and Bhagyashree Waghule tied for runner-up; both were awarded a $1,500 cash prize. Lin Guo was awarded first place and will advance to compete at the Midwestern Association of Graduate Schools 3MT® Competition in Grand Rapids, Michigan April 4-6 . In addition to the OU Graduate College sponsoring Guo’s participation in Grand Rapids, she also was awarded a $2,000 cash prize.


Wednesday, February 14, 2018

OU Researcher Uses Geometry for Affairs of the Heart


NORMAN – Geometry is often referenced for matters of the heart. Marriage has been described as “two parallel lines,” and others have compared love to an “irrational equation” or as unending as “pi.” But when it comes to the medical matters of the heart, geometry can be a lonely and dangerous affair.
“The shape and size of a heart is not the same for every person, and a diseased heart, such as ischemia heart failure, is different than a healthy heart,” explains Dr. Chung-Hao Lee, an assistant professor in the Biomechanics and Biomaterials Design Laboratory in the University of Oklahoma’s School of Aerospace and Mechanical Engineering. “So, when it is necessary to do surgery on the heart, it important to map out the individual’s particular geometry to know how it will respond to different surgical treatment options.”
Lee’s recent research is focused on a predictive surgery for a serious heart condition called Functional Tricuspid Regurgitation, which affects approximately 1.6 million Americans. FTR is typically caused when the left side of the heart fails, causing the right side to expand and a geometric distortion of the heart. The distortion can lead to reverse blood flow, poor functioning of the heart valves, or worse, heart failure on the right side.
Long-term surgical outcomes to repair FTR have a 20 percent moderate to severe recurrence rate by 10 years after initial surgery. Also, up to 40 percent of patients who have cardiac surgery require additional surgery within five years due to the individual’s heart characteristics. This results in more open-heart repeat surgeries and significant increases in risk and mortality.
Lee and his team are developing a predictive modeling tool for individual-optimized heart valve surgical repair. The customized analysis will be a surgical planning tool for the treatment of that patient. Lee’s team uses to a combination of clinical image data, such as functional magnetic resonance imaging and clinical computed tomography, to reconstruct a 3D computational model of the heart. Lee’s model would guide surgeons on the best approach to repair FTR in a particular patient, reducing the risk of reoccurrence.
“Often, surgeons may have several options on how to repair a heart,” Lee said. “They may try to manipulate the geometry of the heart or valves or change the size of each individual apparatus. We can simulate those surgical scenarios, one by one, to know the individual-optimized therapeutic option.” The right approach can improve the durability of the repair.
We are now entering a level of knowledge and technical capability where computational modeling can deliver precision medicine,” Lee said. “If we can predict how a distinct heart will function under different surgical scenarios, we can help surgeon select the best approach to the surgery.”




 [JC1]Not a complete sentence.

Thursday, January 11, 2018

Graduate Student Recognized as Southern Plain’s Transportation Center Student of the Year by Council of University Transportation Centers

Nur Hossain, center, receives SPTC Outstanding Student of the Year award in Washington D.C. From left are Hossain’s father, Md. Rezaul Hossain; SPTC director and Professor Musharraf Zaman; SPTC Program Coordinator Cerry Leffler; wife, Tania Munmun; and mother Begum Nurun Nahar


Nur Hossain, a graduate research assistant from the University of Oklahoma, was named the 2018 Southern Plain’s Transportation Center Outstanding Student of the Year – one of the most prestigious awards given by the SPTC under the National University Transportation Center program. He was recognized at the Council of University Transportation Center’s Awards Banquet, held January 6, 2018 in Washington, D.C., in conjunction with the annual meeting of the Transportation Research Board.

Hossain is pursuing a doctoral degree in civil engineering with an emphasis in design and performance of pavement under the guidance of his advisor, Musharraf Zaman, professor and director of the SPTC. His research is titled “Mechanistic Input Parameters and Model Calibration for Design and Performance Evaluation of Flexible Pavements in Oklahoma”.