Posts tagged change
CU-Boulder team develops swarm of pingpong ball-sized robots
Dec 14th
Correll and his computer science research team, including research associate Dustin Reishus and professional research assistant Nick Farrow, have developed a basic robotic building block, which he hopes to reproduce in large quantities to develop increasingly complex systems.
Recently the team created a swarm of 20 robots, each the size of a pingpong ball, which they call “droplets.” When the droplets swarm together, Correll said, they form a “liquid that thinks.”
To accelerate the pace of innovation, he has created a lab where students can explore and develop new applications of robotics with basic, inexpensive tools.
Similar to the fictional “nanomorphs” depicted in the “Terminator” films, large swarms of intelligent robotic devices could be used for a range of tasks. Swarms of robots could be unleashed to contain an oil spill or to self-assemble into a piece of hardware after being launched separately into space, Correll said.
Correll plans to use the droplets to demonstrate self-assembly and swarm-intelligent behaviors such as pattern recognition, sensor-based motion and adaptive shape change. These behaviors could then be transferred to large swarms for water- or air-based tasks.
Correll hopes to create a design methodology for aggregating the droplets into more complex behaviors such as assembling parts of a large space telescope or an aircraft.
In the fall, Correll received the National Science Foundation’s Faculty Early Career Development award known as “CAREER.” In addition, he has received support from NSF’s Early Concept Grants for Exploratory Research program, as well as NASA and the U.S. Air Force.
He also is continuing work on robotic garden technology he developed at the Massachusetts Institute of Technology in 2009. Correll has been working with Joseph Tanner in CU-Boulder’s aerospace engineering sciences department to further develop the technology, involving autonomous sensors and robots that can tend gardens, in conjunction with a model of a long-term space habitat being built by students.
Correll says there is virtually no limit to what might be created through distributed intelligence systems.
“Every living organism is made from a swarm of collaborating cells,” he said. “Perhaps some day, our swarms will colonize space where they will assemble habitats and lush gardens for future space explorers.”
For a short video of Correll’s team developing swarm droplets visit http://www.colorado.edu/news/multimedia/researchers-creating-team-tiny-robots. For more information about CU-Boulder’s computer science department visit http://www.colorado.edu/engineering/academics/degree/computer-science.
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Boulder County budget released
Dec 13th
The county’s mill levy and general operating budget to remain flat for 2013
Boulder County, Colo. – The Boulder County Commissioners have adopted a budget of $319.6 million for 2013, down from $321.7 million in 2012.
The 2013 budget represents a nearly flat comparison to the one adopted in 2012, based largely on the fact that the county is in its second year of a biannual property reappraisal cycle. With property values assessed only every other year, the second year in the cycle rarely reflects much of a change in the property tax portion of the county’s projected revenue stream.
The real difference in the budget this year is reflected through a reduction in carryover funds from the year prior and the annual adjustment of revenues in funds other than the General Fund (such as the Road & Bridge Fund and Capital Expenditure Fund) which fluctuate year-to-year based on their designated purpose and funding sources.
In keeping with a flat budget, the County Commissioners have worked hard to bring expenses in line with revenues for 2013, all the while continuing to support programs popular with county residents.
As in past years, the careful and deliberate process of evaluating program requests by elected offices and departments in a public forum has led to sound fiscal decisions that allow the county to function at a high level and continue to provide excellent service to county residents with essentially no increase to the General Fund.
“The 2013 budget is a culmination of more than six months of productive discussion and input from our non-profit leaders, elected officials and department heads who work closely every day with members of the public to figure out how best to meet the needs our community,” said Cindy Domenico, Chair of the Board of County Commissioners. “We are pleased to adopt this fully balanced budget which serves as a guiding document for carrying out the values of our residents.”
Commissioner Deb Gardner said she was pleased to adopt a budget that “balances the long and short term needs of the county and works within a sustainable context to make sure that the county will stay on track for years to come in responding to the priorities set forth by the residents of Boulder County.”
Commissioner Will Toor remarked on the complexity of the county budget and praised the efforts of county leaders and staff for continuing to implement and expand on highly-desired programs for residents, even within a fiscally-constrained framework.
“Whether we look at the strong support for our non-profit community and our human services safety net programs, or the extension of the popular EnergySmart program,” which faces an end to its federal grant in mid-2013, “or the continued improvement of our county’s transportation network, including all modes of transportation, we’re very pleased with the ability to support incremental expansions of these programs despite the fiscal constraints we’re under,” said Toor.
The County Commissioners thanked staff and everyone from the public who participated in the budget process, acknowledging that the collaborative effort in creating next year’s budget made for a much better document through their efforts.
Commissioners certify mill levy
The Commissioners also today certified a mill levy of 24.645 mills, the same as the last two years, which is projected to generate property tax revenues of $134,612,456 in 2013 (up only slightly from $134,408,021 in 2012). The county’s mill levy amount represents roughly 29 percent of a property owner’s total average property tax bill within Boulder County. Other taxing entities that receive property tax revenues include (from 2012 data): school districts (53%), cities and towns (11%), and “other” fire, water and special districts (7%).
For a copy of the funding package for 2013, visit: www.bouldercounty.org/gov/budget.
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CU team receives $9.2 million DOE grant to engineer E. coli into biofuels
Dec 4th
“This is a fantastic opportunity to take what we have worked on for the past decade to the next level,” said team leader Ryan Gill, a fellow of CU-Boulder’s Renewable and Sustainable Energy Institute, or RASEI. “In this project, we will develop technologies that are orders of magnitude beyond where we are currently.”
The team is working with a non-pathogenic strain of E. coli. Among the microbe’s more than 4,000 genes, the team is searching for a small set and how it can be manipulated in a combination of on and off states to change the bacteria’s behavior.
“E. coli is not going to want to make your biofuel at all,” said Gill, who’s also a CU-Boulder associate professor of chemical and biological engineering. “It doesn’t do that naturally. It’s programmed with thousands of genes controlling how it replicates. We’re figuring out what control structure we need to rewire in the bug to make it do what we want, not what it wants.”
Included in the team are Rob Knight, CU-Boulder associate professor of chemistry and biochemistry; Pin-Ching Maness, principal scientist at DOE’s National Renewable Energy Laboratory, or NREL; and Adam Arkin, physical biosciences director at DOE’s Lawrence Berkeley National Laboratory.
The researchers hope to engineer the production of ethylene and isobutanol in the modified E. coli. The two compounds are widely used commodities that can be converted into gasoline among other chemicals.
The greatest challenge is harnessing an efficient and inexpensive process that competes with abundant and low-cost fossil fuels like oil, according to Gill.
“Microorganisms and their genomes are incredibly complex machines,” said Gill. “The first step alone — of pinpointing the part of the E. coli genome that can help us make biofuels or other chemicals on a cost-competitive basis — is a daunting challenge. Then we have to determine if the results we want will take one year or decades, $5 million or $500 million.”
The team will be able to simultaneously identify numerous E. coli genes and the results of turning these genes on or off using advanced technologies. Many of the technologies have been developed by the researchers’ own labs.
The grant is the first of its kind from the DOE’s Office of Biological and Environmental Research and was awarded to only seven other research groups including teams led by MIT, Purdue University and the J. Craig Venter Institute.
In 2011, CU’s Technology Transfer Office named Gill an inventor of the year. In 2005, Gill won a National Science Foundation CAREER Award as well as a National Institutes of Health K25 Career Development Award for genomics research and teaching.