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Sep 8, 2024

Molecular simulations, supercomputing lead to energy-saving biomaterials breakthrough

Posted by in categories: 3D printing, economics, energy, supercomputing, sustainability, transportation

A team led by scientists at the Department of Energy’s Oak Ridge National Laboratory identified and successfully demonstrated a new method to process a plant-based material called nanocellulose that reduced energy needs by a whopping 21%. The approach was discovered using molecular simulations run on the lab’s supercomputers, followed by pilot testing and analysis.

The method, leveraging a solvent of sodium hydroxide and urea in water, can significantly lower the production cost of nanocellulosic fiber — a strong, lightweight biomaterial ideal as a composite for 3D-printing structures such as sustainable housing and vehicle assemblies. The findings support the development of a circular bioeconomy in which renewable, biodegradable materials replace petroleum-based resources, decarbonizing the economy and reducing waste.

Colleagues at ORNL, the University of Tennessee, Knoxville, and the University of Maine’s Process Development Center collaborated on the project that targets a more efficient method of producing a highly desirable material. Nanocellulose is a form of the natural polymer cellulose found in plant cell walls that is up to eight times stronger than steel.

Sep 8, 2024

Astronomers witnessed a sudden activation of a supermassive black hole in real time

Posted by in category: cosmology

Astronomers capture rare black hole awakening, witnessing a galaxy’s core flare up in real-time.

Sep 8, 2024

6y Younger Horvath Epigenetic Age: My Best Data Yet (16-Test Analysis)

Posted by in category: genetics

Join us on Patreon! https://www.patreon.com/MichaelLustgartenPhDDiscount Links/Affiliates (Ways To Test Yourself, While Also Helping To Support The Channe):…

Sep 8, 2024

MIT’s rocket horizon project reimagines spaceX starship HLS as sustainable lunar habitats

Posted by in categories: habitats, space travel, sustainability

Rocket horizon, led by a team from MIT, represents a pioneering interdisciplinary effort to create sustainable lunar habitats.

Sep 8, 2024

Canopy wins Air Force contracts to develop thermal protection systems

Posted by in categories: 3D printing, robotics/AI, space travel

One contract focuses on Canopy’s transpiration-cooled TBS. Under a second contract, Canopy will embed high-temperature sensors in the TPS material.

Denver-based Canopy was founded in 2021 to develop manufacturing processes that rely on software, automation and 3D-printing to supply heat shields for spacecraft and hypersonic vehicles.

Sep 8, 2024

Senegal among new members of China’s ILRS moon base project

Posted by in category: space

HELSINKI — Senegal’s space agency signed an agreement on cooperation on the International Lunar Research Station Thursday, swelling the ranks of the China-led project.

Maram Kaire, head of the Senegalese Space Study Agency (ASES) and Li Guoping, chief engineer of the China National Space Administration (CNSA) signed the agreement on cooperation in the International Lunar Research Station (ILRS) at the second international conference on deep space exploration (Tiandu) in Tunxi, Anhui province, Sept. 5.

The agreement came as Chinese President Xi Jinping held talks with Senegalese President Bassirou Diomaye Faye. The latter is visiting for the Beijing Summit of the Forum on China-Africa Cooperation (FOCAC) and a state visit.

Sep 8, 2024

Finger wrap uses sweat to provide health monitoring at your fingertips

Posted by in categories: biotech/medical, chemistry, engineering, health, wearables

A sweat-powered wearable has the potential to make continuous, personalized health monitoring as effortless as wearing a Band-Aid. Engineers at the University of California San Diego have developed an electronic finger wrap that monitors vital chemical levels—such as glucose, vitamins, and even drugs—present in the same fingertip sweat from which it derives its energy.

The advance was published Sept. 3 in Nature Electronics by the research group of Joseph Wang, a professor in the Aiiso Yufeng Li Family Department of Chemical and Nano Engineering at UC San Diego.

The device, which wraps snugly around the finger, draws power from an unlikely source—the fingertip’s . Fingertips, despite their , are among the body’s most prolific sweat producers, each packed with over a thousand . These glands can produce 100 to 1,000 times more sweat than most other areas of the body, even during rest.

Sep 8, 2024

Catalyst design boosts performance of anion-exchange-membrane fuel cells

Posted by in categories: chemistry, energy, sustainability, transportation

Fuel cells are energy-conversion solutions that generate electricity via electrochemical reactions without combustion, thus not contributing to the pollution of air on Earth. These cells could power various technologies, ranging from electric vehicles to portable chargers and industrial machines.

Despite their advantages, many fuel cell designs introduced to date rely on expensive materials and precious metal catalysts, which limits their widespread adoption. Anion-exchange-membrane fuel cells (AEMFCs) could help to tackle these challenges, as they are based on Earth-abundant, low-cost catalysts and could thus be more affordable.

In recent years, many research groups worldwide have been designing and testing new AEMFCs. While some existing devices achieved promising results, most of the non-precious metals serving as catalysts were found to be prone to self-oxidation, which causes the irreversible failure of the cells.

Sep 8, 2024

SpaceX satellites with Tesat terminals achieve first laser data exchange for U.S. military

Posted by in categories: military, satellites

ARLINGTON, Va. — Two SpaceX-built satellites successfully exchanged data using optical communications terminals in a milestone for the U.S. Space Development Agency (SDA), the agency’s director Derek Tournear said Sept. 4.

The satellites, part of SDA’s Tranche 0 experimental spacecraft in low Earth orbit, used laser terminals manufactured by Tesat-Spacecom to communicate. This marks the first time the agency has demonstrated laser communications in space using optical terminals compliant with military standards required for SDA satellites.

“We had not previously demonstrated laser communications,” Tournear said at a DefenseNews conference. He reported that the data exchange occurred on September 3, with the satellites establishing a connection in under 100 seconds and maintaining it for several hours.

Sep 8, 2024

Scientists convert waste from solar panels into advanced battery technology — and it could solve major issues with clean energy

Posted by in categories: solar power, sustainability

“We have demonstrated that high-performance and environmentally sustainable lithium-ion batteries are not only possible, but also within reach.” Scientists convert waste from solar panels into advanced battery technology — and it could solve major issues with clean energy first appeared on The Cool Down.

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