Archive for the ‘electronics’ category: Page 8

Nov 15, 2023

Elusive egg-laying mammal caught on camera for the first time

Posted by in category: electronics

Rediscovered after 60 years, the funky critter is named for Sir Richard Attenborough and is one of only five species of monotreme remaining on Earth.

Oct 30, 2023

Biosynthesis of magnetic sensor in magnetic bacteria revealed through expression of foreign proteins

Posted by in categories: electronics, particle physics

A German-French research team led by Bayreuth microbiologist Dirk Schüler presents new findings on the functionality of proteins in magnetic bacteria in the journal mBio. The research is based on previous results published recently in the same journal.

In this study, the Bayreuth scientists used of the species Magnetospirillum gryphiswaldense to decipher the function of genes that are presumably involved in the biosynthesis of magnetosomes in other magnetic bacteria that are difficult to access.

Magnetic bacteria contain consisting of nanocrystals of an iron mineral inside their cells. These organelle-like particles are known in research as magnetosomes. Like links in a chain, well over 20 of these particles are regularly lined up one after the other. The magnetic moments of the individual crystals add up so that the chain—similar to a compass needle—has the function of a magnetic sensor: It aligns the bacterial cell in the relatively weak magnetic field of the Earth.

Oct 19, 2023

Researchers test seafloor fiber optic cable as an earthquake early warning system

Posted by in category: electronics

One of the biggest challenges for earthquake early warning systems (EEW) is the lack of seismic stations located offshore of heavily populated coastlines, where some of the world’s most seismically active regions are located.

In a new study published in The Seismic Record, researchers show how unused telecommunications fiber can be transformed for offshore EEW.

Jiuxun Yin, a Caltech researcher now at SLB, and colleagues used 50 kilometers of a submarine telecom cable running between the United States and Chile, sampling at 8,960 channels along the cable for four days. The technique, called Distributed Acoustic Sensing or DAS, uses the tiny internal flaws in a long optical fiber as thousands of seismic sensors.

Oct 13, 2023

Matching a Measurement to a Quantum State

Posted by in categories: electronics, quantum physics

A new method identifies the most sensitive measurement that can be performed using a given quantum state, knowledge key for designing improved quantum sensors.

A quantum sensor is a device that can leverage quantum behaviors, such as quantum entanglement, coherence, and superposition, to enhance the measurement capabilities of a classical detector [1–5]. For example, the LIGO gravitational-wave detector employs entangled states of light to improve the distance-measurement capabilities of its interferometer arms, allowing the detection of distance changes 10,000 times smaller than the width of a proton. Typically, quantum sensors use systems prepared in special quantum states known as probe states. Finding the ideal probe state for a given measurement is a focus of many research endeavors. Now Jarrod Reilly of the University of Colorado Boulder and his colleagues have developed a new framework for optimizing this search [6].

Oct 6, 2023

Bill Gates and Samsung develop toilet that combusts waste “into ashes”

Posted by in category: electronics

Year 2022 This toilet looks promising essentially turning waste into ashes.

Billionaire Bill Gates has partnered with electronics company Samsung to create a prototype waterless toilet for household use that turns solid waste into ashes.

The toilet was developed as part of the Bill & Melinda Gates Foundation’s Reinvent the Toilet Challenge – an initiative that started in 2011 that sought proposals for toilets that safely and effectively manage human waste.

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Sep 29, 2023

Threat Data Feeds and Threat Intelligence Are Not the Same Thing

Posted by in categories: cybercrime/malcode, electronics

In cybersecurity, “threat data feeds” and “threat intelligence” are often used interchangeably. They are, however, quite different. To make matters worse, the term “threat intelligence” has been co-opted and watered down by vendors, making it even more difficult to define the difference between threat data feeds and threat intelligence.

An easy, and accessible, way to tell the difference is to think about weather forecasts. National TV news shows present a forecast for the entire country. You might get some useful information from this, but usually you just get an idea of what the weather is like nationwide. Local weather, however, drills down into the expected conditions for your specific area — not only temperature and weather, but also wind speed, barometric pressure, times for weather changes, and so on. You can use this information to plan out your actions for the next few days.

Using the weather forecast analogy, threat data feeds provide a high-level view of the security landscape. For example, it is useful to know that there is a vulnerability in a specific type of software, but it can be relatively trivial if that software is not in use at your organization. Likewise, knowing which threat groups are active is useful information, but how do you know if they are targeting your sector or organization and what processes and tools they are using?

Sep 23, 2023

Plant Fungus Infected a Human in First Reported Case of Its Kind

Posted by in categories: biotech/medical, electronics

I wondered when this would happen. Reminds me of the video game “The Last of Us” and there’s a TV series as well. I’m sure they’ll stop it though.

Silver leaf disease is a curse for a variety of botanicals, from pears to roses to rhododendron. Infecting their leaves and branches, the fungus Chondrostereum purpureum can be fatal for the plant if not quickly treated.

Aside from the risk of losing the occasional rose bush, the fungal disease has never been considered a problem for humans. Until this year.

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Sep 20, 2023

Laser Beam Sends Electricity Nearly 100 Feet Through the Air

Posted by in categories: electronics, mobile phones

😗😁😘 Year 2022

Electricity can be streamed wirelessly across a room through thin air, researchers have found.

Scientists from Seoul, South Korea, have figured out how to transmit 400 milliwatts (mW) of electricity over nearly 100 feet using infrared laser light, according to research published in the journal Optics Express.

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Sep 19, 2023

Study explores mechanical properties of molybdenum disulfide nanoribbons with armchair edges

Posted by in categories: electronics, terrorism

The properties of nanoribbon edges are important for their applications in electronic devices, sensors, and catalysts. A group of scientists from Japan and China studied the mechanical response of single-layer molybdenum disulfide nanoribbons with armchair edges using in situ transmission electron microscopy.

They showed that the Young’s modulus varied inversely with its width below the width of 3nm, indicating a higher bond stiffness for the armchair edges. Their work, published in the journal Advanced Science, was co-authored by Associate Professor Kenta Hongo and Professor Ryo Maezono from JAIST and Lecturer Chunmeng Liu and Lecturer Jiaqi Zhang from Zhengzhou University, China.

Sensors have become ubiquitous in the , with applications ranging from detecting explosives, measuring physiological spikes of glucose or cortisol non-invasively to estimating greenhouse gas levels in the atmosphere.

Sep 19, 2023

Scientists demonstrate new, improved way to make infrared light—with quantum dots

Posted by in categories: electronics, quantum physics

New method from UChicago chemists could lead to cost-effective sensors.

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