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|Articles - October 2012|
|Monday, September 24, 2012|
BY LINDA BAKER
Art museums rely on protective coatings to shield outdoor sculptures from weather and air pollution. But figuring out how effective those anticorrosion coatings are and when they need to be replaced remains a challenge. Most evaluation techniques rely on visual cues, but at that point the damage has already occurred. The diagnostic process can also harm the sculpture, as it often requires exposing the underlying metal to the elements. Tami Lasseter Clare, a chemistry professor at Portland State University, has received a grant from the National Science Foundation to test a new “electrochemical” diagnostic tool that would allow museums to quickly and safely evaluate such coatings. The innovation involves mounting surface electrodes to the sculpture; those electrodes measure “permeability to electrolytes,” an indicator of how protective the coating is, Clare says. The new technique doesn’t leave any residue. The director of the Regional Laboratory for the Science of Cultural Heritage Conservation, Clare is working on a related project testing an environmentally friendly waterborne coating, a project that may have applications for building and the bridge industry. “Most of the time, coatings for artwork are directly translatable to other materials,” says Clare. “But the reverse is not always true.”
Thursday, April 03, 2014
BY OB STAFF
Learn how to green your workplace and lower your environmental footprint at the office. Oregon Business presents a two-hour "Greening Your Workplace" seminar on May 28th, 2014 at the Nines Hotel in Portland.
Thursday, March 06, 2014
BY HANNAH WALLACE | OB BLOGGER
The founder of Pacific Foods talks about why his company has flown under the radar in Oregon, how saving a family-run chicken hatchery has helped his bottom line and why he thinks organic food is anything but elitist.
Tuesday, February 25, 2014
BY PAIGE PARKER
A money management firm broadens its reach.
Tuesday, February 25, 2014
BY LINDA BAKER
A blueberry bush is a blueberry bush — except when it’s a blueberry tree.
Tuesday, March 25, 2014
BY VIVIAN MCINERNY | OB BLOGGER
Oregon is home not only to many fine writers but also several accomplished small publishers.
Thursday, April 17, 2014
BY JASON NORRIS | OB BLOGGER
The “polar vortex” of 2014 seems to have finally thawed and we believe this change in weather will bring more sunshine to the U.S. economy as well.
Tuesday, April 01, 2014
BY APRIL STREETER | OB CONTRIBUTOR
Three years ago, PPS set out to begin to convert the 1930s-era boilers from diesel/bunker fuel to cleaner-burning natural gas. Oregon’s largest school district has realized impressive carbon dioxide emissions reductions, setting an example for public and private institutions.
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