Articles tagged with Steel
Researchers at the University of Wisconsin-Madison have developed a novel fiber-reinforced polymer (FRP) grid system for bridges, boasting advantages over traditional steel rebars. The FRP grid system boasts durability that can last at least 75 years and eliminates weeks of labor-intensive work.
The probable collapse sequences for the World Trade Center (WTC) towers reveal a complex interplay of factors leading to their collapse, including fires fueled by building contents and jet fuel. The sequences update and finalize hypotheses released by NIST, supported by extensive computer modeling and evidence.
The new Local-Electrode Atom-Probe (LEAP) tomograph allows researchers to study the nanostructure and chemical composition of materials at an unprecedented level. By analyzing the structure and chemical identity of steel, scientists can design stronger materials with improved properties.
A pilot study by Lamont-Doherty Earth Observatory researchers gathers baseline information on subway workers’ exposure to airborne metals. The study aims to determine if the elevated metal levels pose a health concern for transit workers.
The von Liebig Center has awarded $1.8 million to 39 projects led by Jacobs School faculty, with a focus on removing inflammatory mediators from plasma and developing handheld gas analyzers for lung disease diagnosis. Researchers will also explore new materials and techniques for creating high-efficiency LEDs.
Researchers at Northwestern University have developed a new metal alloy, BlastAlloy-160, with enhanced strength and resistance to blast damage. This breakthrough design could lead to improved safety in various industries, including construction and transportation.
A recent audit found that using diathermy in tonsillectomies increases the risk of postoperative haemorrhage, particularly in adults and procedures performed by junior surgeons. The study suggests that hot techniques should be used with caution and emphasizes the importance of training junior surgeons to control bleeding.
A study published in Archives of Internal Medicine found that 21% of elderly patients fill prescriptions for potentially inappropriate medications, with Amitriptyline and doxepin being common culprits. The researchers used a large national pharmaceutical benefit company's outpatient claims database to identify these inappropriate medic...
Researchers use X-ray detectors and rocket-triggered lightning to study lightning's complexities. They found that lightning flickers in X-rays at 10,000 times the speed of visible light, with X-ray energies extending up to twice those of a chest X-ray.
Researchers at Columbia University discovered that steel dust from NYC subways contains elevated levels of iron, manganese, and chromium, exceeding 100 times those found in indoor or outdoor settings. The study suggests that subway platforms are a primary source of exposure to these metals.
The National Institute of Standards and Technology has developed a new instrument to study the metal of World Trade Center (WTC) steel. The apparatus rapidly compresses and heats samples at extremely high temperatures, helping to improve understanding of how steel responds under stress.
Researchers created diamond layers on steel by using a chromium nitride intermediate layer to prevent carbon penetration and graphite formation. The technique resulted in good-quality diamond layers on certain types of tool steel.
A new MR-guided breast biopsy method has been developed and tested on 35 patients, achieving high technical success rates. The method uses a stainless steel core biopsy needle with an MR-compatible coaxial device, allowing for accurate targeting of lesions and improved patient outcomes.
The study used x-ray microscopy to visualize the formation of steel crystals, finding smaller crystals at lower temperatures, leading to stronger steel. The research team discovered that rapid cooling results in many small crystals and strengthens steel.
Preliminary study finds that modified structural steel connections may fail under small bomb blasts, compromising building stability. Researchers aim to address issues and consider progressive collapse of multi-story buildings.
Research by Dr Jackie Sheehan and colleagues found that anxiety over labour unrest is holding back SOEs from completing layoffs, with workers instead being moved into new sub-companies or retrained. Despite reduced government interference, significant state controls remain in place.
The Navy is exploring the use of HSLA-65 steel in its next-generation aircraft carriers to reduce weight and increase service life. Preliminary calculations suggest that this new steel can provide equal or greater service life than traditional high-strength steel, but be thinner and weigh less.
Researchers at Purdue University have developed a process to produce metal nanocrystals in large quantities at low cost, containing valuable nanocrystals in common machining processes. The discovery could lead to widespread uses of nanocrystals in various industries, including automotive and electronics.
Researchers have developed a new technique to improve earthquake resistance in highway structures using epoxy and flexible materials like glass or carbon fibres. This method can strengthen concrete structures up to five times and extends their lifespan, providing crucial seconds for evacuation during earthquakes.
A portable wastewater treatment unit has been developed to treat wastewater in remote locations, using stainless steel screens and pressure filters with clay beads. The unit can treat 30,000 gallons per day of wastewater, producing partially dried sludge that can be disposed of with regular solid waste.
Stainless steel corrosion is a highly localized and devastating phenomenon that can cause catastrophic industrial accidents. Researchers at Imperial College London have solved the mystery by discovering that tiny sulphur-rich impurity particles 'suck' chromium out of the steel, creating a vulnerable layer that triggers the main attack.
The WTC's design had several vulnerabilities that made it susceptible to collapse, including flimsy floor trusses and weak connections in the tube frame system. The impact of the jetliners shattered support columns, causing partial collapse and triggering a fire that exacerbated the damage
Researchers at INEEL have developed a revolutionary Super Hard Steel coating with unparalleled hardness properties, surpassing existing commercial coatings in wear and corrosion resistance. The coating can withstand extreme conditions, including high velocity blasting, and is nearly impossible to remove.
A new technology, developed by Ohio University engineers, uses membranes to capture fine air pollutants and toxic heavy metals from industrial exhaust. The membrane electrostatic precipitator can help coal, steel, paper, and other industries meet EPA emissions regulations and make high-sulfur coal a more viable energy source.
A study by Richard Weyers predicts that the US bridge transportation system alone will require a trillion dollar investment. The expert warns that epoxy-coated reinforcing steel is prone to corrosion, especially when used in saltwater environments.
Researchers at the University of Illinois have developed visual inspection procedures to assess corrosion damage in deck beams, evaluate the remaining service life of bridges, and identify potential safety risks. The new standards aim to improve public safety by reducing the need for premature bridge replacements.
Researchers have discovered a metal wire with 'memory' that can help compress broken bones, leading to quicker healing times and better fusion of the bone. The alloy, Nitinol, resists loosening even after being absorbed by the bone, applying consistent pressure to promote proper healing.
Researchers at the University of Illinois developed a mathematical model that predicts when steel-making nozzle clogs will occur, enabling manufacturers to take action before production is halted. The model uses principles of fluid dynamics and heat transfer to simulate the steel-making process and provides accurate predictions compare...
The Virginia Tech/Clemson project aims to develop low-cost carbon fiber for automotive use, reducing costs from $8 per pound to less than $5 per pound. The project involves developing a new polymer precursor to reduce production costs and increase the percentage of carbon in the final fiber.
Researchers determine tensile strength of individual carbon nanotubes, finding they can withstand forces up to 63 GPa before breaking. This discovery suggests potential applications for ultra-lightweight, high-strength cables and composites.
Researchers found iron oxides in concrete up to an inch away from steel bars cause stress and cracking. Colored rust areas indicate metal loss from the bar, compromising its reinforcing action.
Penn State engineers have developed a new manufacturing process that produces stronger and stiffer carbon fiber grids, which can be tailored to specific applications using computer simulations. The grids offer advantages over traditional steel reinforcing rods, including corrosion resistance and reduced weight.
The new high-strength, ultra-thin steels are being tested for endurance on life-size testing rigs to simulate 40,000km of rocky road driving. The materials range in thickness from 0.7 to 2 mm and have improved fatigue properties.
A new X-ray device developed by YSI (UK) allows manufacturers to ensure proper protective coatings and layers of paint on car body parts, reducing corrosion. The device takes five seconds to work and is safer than alternative methods, making it suitable for the steel and aluminum industries.
The Leonid meteor storm may pose a significant threat to satellites due to the high likelihood of invisible meteors. Astronomers predict that most meteors will burn up at low temperatures, making them undetectable.
Scientists at NIST have successfully used an advanced measurement technique to study the evolution of complex defect structures in deformed metals. This breakthrough could lead to more accurate computer models that help manufacturers save hundreds of millions of dollars annually by reducing trial and error.
Researchers at the University of Illinois have developed a fast, low-cost inspection system that uses ultrasonic sound waves to detect damaged tires. The system can evaluate and characterize damage within the tire, determining its remaining useful life and whether it's worth retreading.