Absolute vs. relative efficiency: How efficient are blue LEDs, actually?
The absolute internal quantum efficiency (IQE) of indium gallium nitride (InGaN) based blue light-emitting diodes (LEDs) at low temperatures is often assumed to be 100%. However, a new study from University of Illinois Urbana-Champaign Electrical and.....»»
Protecting national interests: Balancing cybersecurity and operational realities
With cyber threats becoming increasingly sophisticated and targeting critical infrastructure, in this Help Net Security interview, David Ferbrache, managing director of Beyond Blue, discusses the current state of cybersecurity readiness and resilienc.....»»
Study: Giant ultrafast dichroism and birefringence with active nonlocal metasurfaces
The fine and efficient control of the properties of light at ultrafast speed down to the picosecond timescale is a challenging task, crucial for many scientific applications and technologies. For instance, in free-space optical links, manipulating on.....»»
Researchers explore key interaction sites and pathways in ammonia capture
The design and development of high-performance materials are crucial for efficient ammonia capture. Generally, these materials are characterized by abundant ammonia adsorption sites and rapid ammonia transport channels, enabling the effective capture.....»»
Facebook says its new app icon was just a glitch after all
Over the last several days, Facebook users have revolted after the app’s iPhone icon seemingly adopted a new black and blue design. As it turns out, however, this is just a bug, and Facebook is already rolling out a fix. more….....»»
High-refractive-index-modulation nanocomposites for augmented reality displays
Holographic optical elements (HOEs) are essential in augmented reality (AR) displays, providing benefits such as design flexibility and improved optical efficiency. However, current materials' limited refractive index modulation hampers performance,.....»»
Breaking boundaries: PAM-less genome editing in soybean
CRISPR-Cas9 has transformed crop genetic improvement, yet its reliance on specific protospacer adjacent motif (PAM), sequences limits editing scope and efficiency. In soybean, a critical source of protein and oil, these limitations hinder the develop.....»»
Expanding click chemistry: An eco-friendly conversion process for the synthesis of sulfonyl fluorides
For the first time, thiols and disulfides have been converted into sulfonyl fluorides using SHC5 and KF, expanding click chemistry with high efficiency and low environmental impact......»»
Scientists develop multifunctional photocatalyst for wastewater treatment
Water contamination by pharmaceuticals and heavy metals poses severe environmental and health risks. Traditional methods like biodegradation and filtration often lack efficiency and sustainability. Photocatalysis, using solar energy to degrade pollut.....»»
The New Glenn rocket’s second stage set to roll to the launch pad on Monday
The large rocket will attempt to land on its debut flight. Enlarge / Image of the New Glenn second stage on its mobile test stand. (credit: Blue Origin) Blue Origin plans to enter the final phase of its launch preparati.....»»
Audi replaces its bestseller—here’s the next Q5 SUV
Yet again, the US misses out on some options, like the mild hybrid. Enlarge / The third-generation Audi SQ5 (blue) and Q5 (black) go on sale early next year. (credit: Audi) Audi provided flights from Washington to Munich.....»»
Rocket Report: Blue Origin flies six to space; when will Starship launch again?
It seems like we'll have to wait a bit for ABL to put another rocket on the launch pad. Welcome to Edition 7.09 of the Rocket Report! When will SpaceX launch the next test flight of Starship? It certainly doesn't look to be imminent,.....»»
Daily 5 for Aug. 29: GM hopes to bolster its fleet business by branding BrightDrop vans as Chevrolets
Welcome to today's edition of the Daily 5. Back in July, we ran a report about GM's BrightDrop electric delivery van business folding into the GM Envolve fleet and commercial unit. The idea was greater efficiency. Our story also said that after pa.....»»
Study: Plasmonic copper nanowires boost nitrate reduction efficiency
The electrocatalytic nitrate reduction reaction (NO3RR) has attracted the attention of researchers for its significant value in ammonia synthesis and effluent treatment. Plasmon-assisted electrocatalysis provides a powerful strategy for efficient con.....»»
Blue Origin completes latest space tourism flight successfully
Blue Origin flew its latest group of six thrill-seekers to the edge of space and back again Thursday, including the youngest-ever woman to complete the feat......»»
Vinegar vapor method could make UV sensors 128,000 times more responsive
Researchers at Macquarie University have developed a new way to produce ultraviolet (UV) light sensors, which could lead to more efficient and flexible wearable devices......»»
Bitwarden introduces enhanced inline autofill feature for credit cards and identities
Bitwarden announced an enhancement to the inline autofill capabilities within the Bitwarden browser extension. This update introduces seamless autofill for credit cards and personal identities, enabling more secure and efficient interactions with web.....»»
Generalized splitting-ring number theoretic transform
Number theoretic transform (NTT) is widely recognized as the most efficient method for computing polynomial multiplication with high dimension and integral coefficients, due to its quasilinear complexity......»»
A way to recover silver from dead solar panels with 98% efficiency
A multi-institutional team of chemists, metallurgists and engineers has developed a highly efficient way to retrieve silver from dead solar panels. Their paper is published in Environmental Technology & Innovation......»»
From rhino horn snuff to pangolin livestock feed: A half-century of patents reveals the wildlife trade"s evolution
The bright blue blood of the horseshoe crab is used around the world to detect bacterial contamination in vaccines. Synonymous with luxury, sturgeon caviar has been patented as an antidote to impotency in China. Rhino horn is used in traditional Asia.....»»
Researchers study carbon capture in Upper Newport Bay salt marshes
Despite covering just 2% of the ocean, coastal wetlands—such as tidal salt marshes, mangrove forests and seagrass beds—are responsible for storing nearly half of all carbon found in ocean sediment. These "blue carbon" ecosystems naturally absorb.....»»