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Articles by Lynne Roeder
Green diesel for the road ahead
The 13 top-performing blendstocks with the potential to reduce criteria and GHG emissions comprise 6 hydrocarbons, 3 esters, and 4 ethers. Credit: Dan Gaspar, Pacific Northwest National Laboratory Diesel engines far outpace gasoline engines when it comes to miles-per-gallon for freight-hauling heavy-duty trucks. And thanks to advances in technology, today's diesel engines emit far lower levels of pollutants, including soot and nitrogen oxides (NOx), than they used to.
Hydrogen Energy Storage at Your Service
For most people considering any large purchase, cost is a major consideration. But cost is balanced by value. What do they get out of the investment over the long haul? Is it worth it? The same holds true for major investments in our energy system. And energy storage technologies are emerging as a key component of this system. Energy storage technologies are designed to store surplus energy and release it when needed to help meet demand.
Laser-focused on supercooled water
Loni Kringle, a physical chemist, adjusts the water dosing lines for the vacuum chamber used to study supercooled water. Credit: Andrea Starr | Pacific Northwest National Laboratory Drink in this factoid: water is the weirdest liquid of all. Most fluids have predictable and similar behaviors. But unlike other fluids, water is most dense as a liquid, not a solid. Aquatic life survives the winter because ice floats instead of sinking and expanding into one huge solid glacier.
Energy on demand: Learning from nature's catalysts
Quantum chemistry, quantum computing, and Pacific Northwest National Laboratory's Energy Sciences Center could help researchers answer the next big question in catalysis. (Image by Timothy Holland | Pacific Northwest National Laboratory) About 15 years ago, Simone Raugei started simulating chemistry experiments at the molecular level.
New technology exploits fluorescence and machine learning to speedily scan thousands of images
Becky Hess, a biomedical scientist, leads the OmniScreen project for PNNL. In OmniScreen, human cells glow if exposed to a pathogen. Credit: Andrea Starr | Pacific Northwest National Laboratory Any biological sample—dirt, water, or food, for example—contains billions of bacteria. Only a few are harmful to humans, or pathogenic. But those few pathogens can mean the difference between a reliable supply of meat or lettuce, for example, and an outbreak of food poisoning—or worse, a pandemic.
Glowing Progress in Pathogen Discovery
By Lynne Roeder Newswise — Any biological sample—dirt, water, or food, for example—contains billions of bacteria. Only a few are harmful to humans, or pathogenic. But those few pathogens can mean the difference between a reliable supply of meat or lettuce, for example, and an outbreak of food poisoning—or worse, a pandemic. Discovering deadly pathogens before they strike is one goal of the Defense Advanced Research Projects Agency (DARPA).
Researchers speed power grid simulations using AI
Smart-PGSim can be used to generate a high-quality starting point for online simulation tools to achieve quick convergence. Credit: Cortland Johnson | Pacific Northwest National Laboratory Most modern phones and cars are programmed to "learn" from their environment—sounds, facial features, and even common driving routes. Patterns of recognition allow these systems to accurately predict and suggest preferred options in the blink of an eye.
A watershed study for wetland restoration
Amy Borde, an Earth scientist at PNNL’s Marine and Coastal Research Laboratory, identifies grass species at the edge of a brackish marsh near the mouth of the Columbia River. Credit: Shon Zimmerman | PNNL Where rivers meet oceans, each cycle of the tide moves water in and out of estuaries. The mixing and mingling of fresh and briny water, combined with seasonal weather, creates a unique environment for ecosystems in coastal estuaries and upstream tidal rivers.
Influx of Electric Vehicles Accelerates Need for Grid Planning
For grid reliability, PNNL study shows advance planning and smart EV charging strategies could help cities and utilities smooth out the duck curve and avoid costly new infrastructure Originally published on the Pacific Northwest National Laboratory (PNNL) By, Lynne Roeder, RICHLAND, Wash.—Electric vehicles are coming—en masse. How can local utilities, grid planners and cities prepare?
Researchers find how enzyme environment alters the rate and direction of a reaction
Researchers found that subtle changes in the protein scaffold surrounding an enzyme’s catalytic center exquisitely control the rate and direction of chemical reactions. Within [FeFe]-hydrogenases, secondary interactions directly influenced the relative stabilization/destabilization of different oxidation states of the active site metal cluster.
New tech could improve fuel economy for passenger vehicles, light duty trucks
A technology developed by researchers at the U.S. Department of Energy’s Pacific Northwest National Laboratory could pave the way for increased fuel economy and lower greenhouse gas emissions as part of an octane-on-demand fuel-delivery system. Designed to work with a car’s existing fuel, the onboard separation technology is the first to use chemistry—not a physical membrane—to separate ethanol-blended gasoline into high- and low-octane fuel components.
Onboard separation technology set to improve fuel economy
PNNL's onboard separation technology enables octane on demand to improve performance and overall fuel economy for passenger vehicles and light trucks. Credit: PNNL A technology developed by researchers at the U.S. Department of Energy's Pacific Northwest National Laboratory could pave the way for increased fuel economy and lower greenhouse gas emissions as part of an octane-on-demand fuel-delivery system.
A more collective understanding of coastal systems dynamics and evolution
PNNL researchers are taking a closer look at the connections between water, human development, and what to expect. Credit: Andrea Starr, PNNL With water covering more than 70 percent of the Earth's surface, it's no wonder our planet is nicknamed the Blue Marble. Seen from outer space, our marble is interwoven with swirls of clouds and splotches of land defined by coastlines—372,000 miles worth. Zoom in on the marble and you'll see the coastlines intersecting countless rivers and streams.
Commentary: Time to shatter the gender glass ceiling
Singapore women face a glass ceiling at work. Top-level attention and concrete actions can help turn this situation around, says Hays Singapore’s Lynne Roeder. SINGAPORE: Are Singapore women being held back by an institutional glass ceiling, halting their progress as they strive to reach the upper echelons of industry? This was the question posed and answered empathically in the affirmative, in an opinion piece by a local media outlet. Yet there are still those who deny the ceiling exists.
10 mobile apps to help you work smarter - Viewpoint - careers advice blog
Smartphones, tablets and wearable devices are having the same game-changing effect on the world of work that personal computers had thirty years ago. Just think of all the different pieces of kit you would have needed to carry around which can now be found on a single device; a telephone, a pager, a camera, a notepad, a calculator, a calendar, a computer, a cassette player, a map – the list goes on.
Commentary: Scepticism towards contract work hold workers back from finding their perfect job
The contracting market is set for impressive growth, but old mindsets may be the biggest impediment to realising its potential, says Hays Singapore’s Lynne Roeder. SINGAPORE: What makes a job desirable and what companies are looking for are rapidly changing. A commentary on Channel NewsAsia highlighted that while in the past, people desired stable 9-to-5 jobs, young entrants to the workforce today place a premium on learning and information sharing.
The ultimate guide on how to get headhunted for your next job
The higher up you go, the less likely you’ll be trawling job sites looking for your next move. But how exactly does one get headhunted? Hays’ Lynne Roeder is here to help. As a more senior-level professional, your quest for a new role will look distinctly different to what it might have looked like 10 years ago. After all, you are an important part of the organisation, and your departure will have further reaching implications for employees, competitors and shareholders.
15,000 first-time taxpayers to benefit from no-filing service
According to a release, more taxpayers, including 15,000 first-time taxpayers, will benefit from the No-Filing Service (NFS) for this year’s tax filing season, starting 1 March 2014. For these 1.23 million taxpayers, or 60% of all taxpayers, tax filing will be a non-event. First launched in 2007, the NFS has grown significantly over the years to benefit 27 times as many taxpayers this year.
Keppel axes over 6,000 O&M workers as contracts dry up
It needs to rightsize to stay afloat. Keppel Corporation’s shrinking staff numbers paint a disheartening picture of its battered offshore and marine segment. In its latest earnings presentation, Keppel reported that it has let go of about 6,000 direct staff in its local and overseas yards since January 2015, in a bid to slash costs and optimise its current operations.
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