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Dissipating earthquakes to provide earthquake protection
Earthquakes and explosions damage thousands of structures worldwide each year, destroying countless lives in their wake, but a team of researchers at Penn State is examining a completely new way of safeguarding key infrastructure.“The structural design for earthquakes now requires the whole building to shake, which you can design for, but it’s quite an expensive proposition. Our idea is that if you can dissipate the earthquake before it gets to the structure, then you don’t have to design it to resist that ground motion,” says one researcher.
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Feeling the impact of fracking
Fracking involves drilling holes deep into layers of subterranean shale and then pumping in millions of gallons of water, sand, and chemicals to release oil and natural gas trapped in the rock. In some shale formations, a large volume of toxic water comes up along with the hydrocarbons. The injection of the wastewater from the process back into the earth can trigger seismic activity, scientists say. According to the U.S. Energy Information Administration, there were approximately 26,000 hydraulically fractured wells for natural gas in the United States in 2000. By 2015, the number had grown to 300,000. Researchers are studying the link between fracking and earthquakes
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Grenfell fire aftermath: how 20th-century buildings can be made safer, not more dangerous
Despite the horror of the fire at Grenfell Tower, UK regulations for tall buildings are ahead of the curve in comparison with other countries. There have been huge improvements in construction materials and technological solutions throughout the modern era. And testing and certification methods have became even more rigorous, to ensure the quality of new products. Of course, many people are now asking what more could have been done to prevent the tragic loss of life in the Grenfell blaze. The truth is, while architects and engineers can work to mitigate the risk of fire, it cannot be completely eliminated. The addition of some materials to buildings, such as cladding, will obviously now come under scrutiny. But there are several improvements that can be made to old 20th-century tower blocks like Grenfell, to make them safer places to live.
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Inflatable plug for subway tunnels demonstrated
A giant, inflatable structure designed to prevent flooding in subways was rolled out, literally, for media observers inside a full-scale, mock subway tunnel. In a demonstration, the plug, in under five minutes, nearly filled with pressurized air, created a flexible but extremely strong barrier. Full inflation is complete in less than twelve minutes.
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Grenfell Tower disaster: how did the fire spread so quickly?
In the middle of the night, while most residents were sleeping, a devastating fire started at Grenfell Tower in London. From an engineering perspective, there are a number of factors in the design of the 24-storey tower block that may have contributed to the speed and scale of the blaze. Most of the current guidelines across the world contain detailed design requirements for fire safety such as evacuation routes, compartmentation and structural fire design. But Grenfell Tower was built in 1974. At that time, the rules and regulations were not as clear and well-developed as they are now.
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New materials to make buildings better, safer
A new type of construction material, called cross-laminated timber, is currently approved for buildings with up to six stories. Designers would like to use it in taller buildings because it is environmentally sustainable and can speed the construction process. To use it for those taller buildings, the industry needs to understand how the timber would perform during a fire. NIST experiments are measuring the material’s structural performance and the amount of energy the timber contributes to the fire.
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Protecting the world’s longest floating bridge from strong wind
The Bjørnafjord crossing in Norway will become the longest floating bridge in the world, that is, a bridge where the vertical load is supported by floating pontoons. In order to build the bridge, the engineers need to know exactly how the wind behaves on the bridge site. Scientists are working on a new method for wind measurements.
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Stuxnet, the sequel: Dangerous malware aims to disrupt industrial control systems
A cybersecurity firm has identified a new, dangerous malware, dubbed Industroyer, capable of performing an attack on power supply infrastructure. The malware was likely involved in the December 2016 cyberattack on Ukraine’s power grid that deprived part of its capital, Kiev, of power for over an hour. is capable of directly controlling electricity substation switches and circuit breakers. It uses industrial communication protocols used worldwide in power supply infrastructure, transportation control systems, and other critical infrastructure. The potential impact may range from simply turning off power distribution, triggering a cascade of failures, to more serious damage to equipment.
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Miniaturizing America's tallest dam to prevent future disasters
Engineers at Utah State University’s Utah Water Research Laboratory have constructed a 1:50 scale model of the Oroville Dam spillway. The model will provide useful information about hydraulic conditions in and around the damaged spillway.
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Protective value of mangroves for coastlines
The threat to coastal regions posed by climate change, overdevelopment and other human caused stressors is well-established. Among the most prized and valuable land throughout the world, shorelines everywhere are imperiled by sea level rise, beach erosion and flooding. But a recently published NASA-funded research study has discovered a new, natural phenomenon that could offer an economic and ecological solution to coastal wetland protection—the spread of mangrove trees.
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Training cybersecurity professionals to protect critical infrastructure
Idaho National Laboratory and the Department of Homeland Security (DHS) announce the successful completion of the 100th iteration of the Industrial Control Systems Cybersecurity (301) training course; a course tailored to defending systems used across the critical infrastructure sectors. Since April 2007, over 4,000 cybersecurity professionals have participated in the advanced course.
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Seacoast roads under new threat from rising sea level
Research has found that some roads, as far as two miles from the shore, are facing a new hazard that currently cannot be seen by drivers - rising groundwater caused by increasing ocean water levels. Without drastic improvements to these routes, at or below the pavement surface, motorists can expect segments of these roadways to deteriorate more quickly, require more maintenance and be closed for longer periods of time.
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Frequency of coastal flooding will double globally in next decades
The frequency and severity of coastal flooding throughout the world will increase rapidly and eventually double in frequency over the coming decades even with only moderate amounts of sea level rise, according to a new study. The new report shows that with just 10 to 20 cm (4 to 8 inches) of sea level rise expected no later than 2050, coastal flooding will more than double. This dramatic increase in coastal flooding results from rising sea levels combined with storm-driven flooding, including the effects of waves and storm surge.
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No funds for California's earthquake early-warning system in Trump's proposed budget
The Trump administration’s proposed budget would eliminate federal funding for an earthquake early warning system being developed for the U.S. West Coast. Critics say that if the relevant clauses in the budget proposal become law, the long-planned seismic warning effort will be killed. Scientists say the withdrawal of federal funds would likely end the early-warning project, which aims to send smartphone tremor alert messages to West Coast residents.
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Strong carbon price needed to drive large-scale climate action: Economists
Meeting the world’s agreed climate goals in the most cost-effective way while fostering growth requires countries to set a strong carbon price, with the goal of reaching $40-$80 per ton of CO2 by 2020 and $50-100 per ton by 2030. This is the key conclusion of the High-Level Commission on Carbon Prices, led by Nobel Laureate Joseph Stiglitz and Lord Nicholas Stern. The study concludes that a well-designed carbon price is an indispensable part of a strategy for efficiently reducing greenhouse gas emissions while also fostering growth.
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