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Apr 29, 2024

RIZON class 4 and 5 electric MD trucks arrive in Canada

Posted by in categories: energy, transportation

Daimler’s new, all-electric truck brand made its Canadian debut this week with the official market launch of its battery electric class 4 and 5 medium duty work trucks.

After making its North American debut at the 2023 ACT Expo in Anaheim, California, Daimler Truck’s RIZON brand has continued on a steady march towards production with initial preorders set to open this June. But it won’t just be Americans who can order a new RIZON electric box truck – Canadians will be able to add them to their fleets at the same time.

“Canada is very advanced regarding green energy and infrastructure and is a natural next step for RIZON’s second market,” explains Andreas Deuschle, the Global Head of RIZON. “We are very happy to bring our zero-emission solution to Canadian customers. They are proven OEM trucks with the latest technology from Daimler Truck.”

Apr 29, 2024

How much energy can offshore wind farms in the U.S. produce? New study sheds light

Posted by in categories: business, energy, finance, sustainability

As summer approaches, electricity demand surges in the U.S., as homes and businesses crank up the air conditioning. To meet the rising need, many East Coast cities are banking on offshore wind projects the country is building in the Atlantic Ocean.

For electric grid operators, knowing how much wind power these offshore turbines can harvest is critical, but making accurate predictions can be difficult. A team of CU Boulder scientists and their collaborators are working to tackle the challenge.

In a paper published March 14 in Wind Energy Science, a team led by Dave Rosencrans, a doctoral student, and Julie K. Lundquist, a professor in the Department of Atmospheric and Ocean Sciences, estimates that in the Atlantic Ocean region, where the U.S. plans to build large wind farms, could take away wind from other turbines nearby, potentially reducing the farms’ power output by more than 30%.

Apr 29, 2024

The World’s Most Genetically Modified Person

Posted by in categories: biotech/medical, genetics

Science is where curiosity, ambition, and innovation meet.

Liz Parrish, founder and CEO of BioViva Science, is spearheading a campaign against the greatest killer on the planet. She stands, unvexed by criticism and convention, in the vanguard of bringing tomorrow’s treatments to those who need them today.

Her journey began when her son was diagnosed with type-1 diabetes.

Apr 29, 2024

Nanoscale anisotropy for biomedical applications

Posted by in categories: biotech/medical, nanotechnology

Using nanoparticles featuring anisotropic characteristics is a promising approach to developing multifunctional platforms for drug delivery and theranostics. This Review discusses methods to generate anisotropy in nanosystems and strategies to control particle transport, targeting and interaction with cells to overcome biological barriers.

Apr 29, 2024

Renewables cover 56 pct of Germany electricity use in March quarter

Posted by in category: futurism

Renewables account for 56 per cent of Germany electricity use in first quarter of 2024.

Apr 29, 2024

Global study shows a third more insects come out after dark

Posted by in category: futurism

A groundbreaking study, led by Dr. Mark Wong of The University of Western Australia, has provided the first global picture of insect activity patterns across the fundamental day–night cycle.

“Through our extensive research, we’ve finally been able to provide a definitive answer to the age-old question of whether there are more out at night than during the day,” said Dr. Wong. “Our global analysis not only shows that insect activity rises by a third (31.4%) during the night on average, but crucially reveals key ecological factors driving patterns in insect activity across the Earth.”

The activity patterns of insects across the day–night cycle are a surprisingly understudied area in ecology, as such patterns cannot be detected by common methods used for sampling insects. For example, sweep netting captures inactive insects, while light traps do not work as well during the day as they do during the night.

Apr 29, 2024

Large Hadron Collider experiment zeroes in on magnetic monopoles

Posted by in category: particle physics

The late physicist Joseph Polchinski once said the existence of magnetic monopoles is “one of the safest bets that one can make about physics not yet seen.” In its quest for these particles, which have a magnetic charge and are predicted by several theories that extend the Standard Model, the MoEDAL collaboration at the Large Hadron Collider (LHC) has not yet proven Polchinski right, but its latest findings mark a significant stride forward.

The results, reported in two papers posted on the arXiv preprint server, considerably narrow the search window for these hypothetical particles.

At the LHC, pairs of could be produced in interactions between protons or . In collisions between protons, they could be formed from a single virtual photon (the Drell–Yan mechanism) or the fusion of two virtual photons (the photon-fusion mechanism). Pairs of magnetic monopoles could also be produced from the vacuum in the enormous magnetic fields created in near-miss heavy-ion collisions, through a process called the Schwinger mechanism.

Apr 29, 2024

Optical barcodes expand range of high-resolution sensor

Posted by in categories: biotech/medical, chemistry

The same geometric quirk that lets visitors murmur messages around the circular dome of the whispering gallery at St. Paul’s Cathedral in London or across St. Louis Union Station’s whispering arch also enables the construction of high-resolution optical sensors. Whispering-gallery-mode (WGM) resonators have been used for decades to detect chemical signatures, DNA strands and even single molecules.

In the same way that the architecture of a whispering gallery bends and focuses sound waves, WGM microresonators confine and concentrate light in a tiny circular path. This enables WGM resonators to detect and quantify physical and biochemical characteristics, making them ideal for high-resolution sensing applications in fields such as biomedical diagnostics and environmental monitoring.

However, the broad use of WGM resonators has been limited by their narrow dynamic range as well as their limited resolution and accuracy.

Apr 29, 2024

Scientists simulate magnetization reversal of Nd-Fe-B magnets using large-scale finite element models

Posted by in categories: sustainability, transportation

NIMS has succeeded in simulating the magnetization reversal of Nd-Fe-B magnets using large-scale finite element models constructed based on tomographic data obtained by electron microscopy.

Such simulations have shed light on microstructural features that hinder the coercivity, which quantifies a magnet’s resistance to demagnetization in opposing magnetic fields. New tomography-based models are expected to guide toward the development of sustainable permanent magnets with ultimate performance.

Green power generation, electric transportation, and other high-tech industries rely heavily on high-performance permanent magnets, among which the Nd-Fe-B magnets are the strongest and most in demand. The coercivity of industrial Nd-Fe-B magnets is far below its physical limit up to now. To resolve this issue, micromagnetic simulations on realistic models of the magnets can be employed.

Apr 29, 2024

Energy Scientists Have Unraveled the Mystery of Gold’s Glow

Posted by in categories: chemistry, mapping, nanotechnology, quantum physics, solar power, sustainability

Researchers at EPFL have created the first detailed model explaining the quantum-mechanical effects that cause photoluminescence in thin gold films, a breakthrough that could advance the development of solar fuels and batteries.

Luminescence, the process where substances emit photons when exposed to light, has long been observed in semiconductor materials like silicon. This phenomenon involves electrons at the nanoscale absorbing light and subsequently re-emitting it. Such behavior provides researchers with valuable insights into the properties of semiconductors, making them useful tools for probing electronic processes, such as those in solar cells.

In 1969, scientists discovered that all metals luminesce to some degree, but the intervening years failed to yield a clear understanding of how this occurs. Renewed interest in this light emission, driven by nanoscale temperature mapping and photochemistry applications, has reignited the debate surrounding its origins. But the answer was still unclear – until now.

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