Wrap your mind around this! photo origami CU Boulder
Aug 27th
CU-Boulder ‘photo origami’ proposal
wins $2 million NSF grant
wins $2 million NSF grant
The art of origami has inspired children and artists all over the world because of the amazing objects that can be created by folding a simple piece of paper.
Now an engineering research team at the University of Colorado Boulder has won a $2 million grant from the National Science Foundation to develop a light-controlled approach for “self-assembly” mechanisms in advanced devices based on the same principles.
Known as “photo origami,” the idea is supported by NSF’s Emerging Frontiers in Research and Innovation program, which supports interdisciplinary teams working on rapidly advancing frontiers of fundamental engineering research.
CU-Boulder associate professor of mechanical engineering Jerry Qi will lead the team developing the photo origami technique. Collaborators will include CU faculty Robert McLeod of electrical engineering, Kurt Maute of aerospace engineering sciences and Elisabeth “Beth” Stade of mathematics, along with Patrick Mather of Syracuse University.
The ability to transform a flat polymer sheet into a sophisticated, mechanically robust 3-D structure will enable new approaches to manufacturing and design of devices from the microscopic to centimeter scales, according to the team. Examples include using extremely low-weight, high-strength materials to create micro-electromechanical systems with complicated 3-D architectures that can be used for microscopic sensors such as antennas or microphones, and miniature robotic devices for environmental monitoring.
Present barriers to the development of folding and unfolding mechanisms stem from the lack of understanding of scaling laws that allow researchers to generalize results obtained at various size scales, the inability to easily cause matter to “reorient” itself to achieve the desired folding patterns, and challenges in automated, sequential folding.
To overcome these challenges, the CU team will make use of recent fundamental advances in the control of polymer architecture through light-triggered chemical reactions.
“One has to accurately control how much deformation a material should have in order to obtain a precise folding angle and to determine where to fold or stop folding in order to avoid interference in the folding path and form the desired structure,” said McLeod, who will use the interaction of light with material deformation to develop optical waveguide transistors.
In this new form of logic circuit, light triggers the deformation of a soft polymer, which in turn switches the light on or off. In this way, the optical waveguide transistor will enable a structure to be pre-programmed with a folding pattern through a sequential set of switching events controlled by the shape of an origami sheet.
In recent years, CU researchers and their collaborators have made significant progress in using light to control and alter the structure of a polymer. They are able to both bend and stiffen polymer structures and to develop new, soft, shape-memory composite materials through photo-initiation techniques. Shape-memory composites are “smart” materials that have the ability to return from a temporary, deformed shape to their original shape when induced by a trigger.
In addition, the team will work with the local school district to provide research and educational opportunities for K-12 students and teachers.
Key times and locations to watch the race today
Aug 25th
12:06 — Broadway and Arapahoe
12;08 — Arapahoe to Folsom
12:12 –9th and Canyon
12:15 –begin climb
12:51 — enter Nederland
1:19 — enter Ward (loop)
1:46 — from CO 72 to CO7
2:26 — CO7 to US 36
2:41 to 3:10 — Lefthand Canyon, James Canyon, Lee Hill Road/ Old Stage Road/Broadway
3:18 to 3:21 — Down town/Uni Hill route
3:23– 13th and Baseline and race to Flagstaff
3:32 finish
***These time are estimates. Arrive early or you’ll miss the race***
Spectators urged to plan ahead for Boulder Stage of the USA Pro Cycling Challenge
Aug 24th
The USA Pro Cycling Challenge comes to Boulder Aug. 25, and will be one of the largest events in city history. More than 100,000 spectators are expected to be in town to cheer on cyclists for Colorado’s biggest bike race.
To help residents and visitors prepare for race day activities and transportation needs, city staff and the Local Organizing Committee (LOC) have developed a Boulder Stage Interactive Map (www.usaproboulder.com/map) featuring periodic road closure times along the race route and public parking locations throughout the city. RTD also will increase bus service to Boulder to provide more transit options for race spectators, and the HOP will provide free service within Boulder on Aug. 25 to make it easier for spectators to get around town to watch the race and celebrate at the race festival on Pearl Street. Service will be doubled for the BV route and on the BOLT to Longmont.
“This will be an extraordinary event for the city, and we’re excited to showcase Boulder to an international audience of cycling fans,” said City Manager Jane Brautigam. “There are going to be several optimum places to watch the race as cyclists come through the city twice, and we want to encourage everyone – residents and visitors – to plan ahead for parking, to take advantage of public transportation, and to use Boulder’s world-class bike paths during the event.”
Some event day tips include:
- Map your route in advance and know when and where roads are closed
- Arrive early and plan to spend the day in Boulder
- Identify your preferred viewing location, and be flexible
- Dress for changing weather
- Bring water and wear comfortable shoes
- Enjoy local businesses and the festival before and during the race
- Bring cash for parking, bike corrals, and the festival – No credit cards will be accepted for parking or bike corrals
- Plan to shop or eat at a local restaurant to avoid traffic delays after the event
Event parking is available throughout the city and can be found on the Boulder Stage Interactive Map (www.usaproboulder.com/map).
Paid on-street parking is available. Paid Event Parking will be available on the University of Colorado at Boulder Campus, city garages and parking lots, and at several local organizations. City parking facilities will charge $30 for event parking during Saturday’s race to help distribute parking throughout the city. The $30 parking fee will be cash only on Aug. 25. Vehicles parked illegally will be towed. Normal parking operations will resume on Sunday, Aug. 26.
Spectators who wish to park and ride bicycles or walk to the downtown events, may park for free at Stazio Field, Flatiron Park North, Pearl East Circle near the Goose Creek path and at GE Analytical Instruments in Gunbarrel. The LOC has arranged for bike corrals at Boulder High School and Casey Middle School. Bikes may be checked in for a $2 donation between 10 a.m. and 7 p.m.
CU-Boulder will have shuttles operating on race day from the CU east campus parking lots and CU main campus parking lots to the intersection of 20thStreet and Pearl Street. Parking at the main campus will be $30; parking at east campus will be $20. The shuttles are included in the parking fees (no bikes allowed on shuttles).
To view the most up-to-date parking and transportation options based on your specific needs, visit the Boulder Stage Interactive Map. The state also is announcing information about road closures throughout the region. Regional information is available at www.cotrip.org.
Please visit RTD’s main website www.rtd-denver.com to see route information for Aug. 25.
