Page 12

May 18, 2024

Scientists Bent Light to Curve 6G Beams, and It Might Make the Internet Unstoppable

Posted by in category: internet

The quest for perfect connectivity has taken a giant leap forward.

May 17, 2024

Milky Way’s halo is filled with ‘magnetic donuts’ as wide as 100,000 light-years

Posted by in categories: evolution, space

The discovery could help better understand the origin and evolution of magnetic fields in the cosmos, a mystery that has baffled astronomers for decades.

Related: Scientists reveal never-before-seen map of the Milky Way’s central engine (image)

The new study was led by National Astronomical Observatories of the Chinese Academy of Sciences (NAOC) scientists Xu Jun and Han Jinlin.

May 17, 2024

TMSC Announces Low-Power N4e Node, Says It’s Boosting Specialty Nodes by 50%

Posted by in categories: business, energy

It’s unclear what customers or applications might be earmarked for this node, but it’s possible it could be dedicated to IoT and other consumer devices that need to sip power. Typically, these applications use legacy nodes as it would be too expensive to use advanced processes for inexpensive devices, but TSMC is planning for the future since this effort won’t be realized until 2029 or so.

TSMC’s Dr. Kevin Zhang, senior vice president of business development and overseas Operations, says the company has already started building Greenfield, but he didn’t indicate where it’s located. He says the rapid deployment of the Greenfield fab is the first time the company has essentially skipped what we assume is a lengthy review process and put shovels in dirt already.

According to Zhang, TSMC’s move is part of its larger effort to build some resiliency into its global supply chain. That resiliency will be achieved both by building fabs outside of Taiwan and increasing capacity for nodes it thinks will be in demand in the future. Anandtech notes the company’s most advanced low-power node is currently N6e, which is a 6nm/7nm node that uses between 0.4V and 0.9V. For N4e, the company is reportedly looking to drop that all the way down to 0.4V, but it didn’t offer any additional details about its performance or attributes at the symposium.

May 17, 2024

Ml_Without_Tears/Kan_Mlp_From_Scratch at Master · Lollodealma/Ml_Without_Tears

Posted by in category: futurism

A from-scratch implementation of Kolmogorov-Arnold Networks (KAN)…and MLP

By: Lorenzo Maggi…works-kan/

With KAN DYI implementation.

Continue reading “Ml_Without_Tears/Kan_Mlp_From_Scratch at Master · Lollodealma/Ml_Without_Tears” »

May 17, 2024

Ed Boyden: Let’s Bring Engineers into Studying the Brain

Posted by in categories: genetics, neuroscience

Subscribe: RSS

I met Prof. Ed Boyden at last year’s Global Future 2045 conference in New York. There I was highly impressed with Boyden’s impressive work in neuroscience in general and optogenetics in particular, as well as the profound implications it would have on our ability to understand and manipulate the brain. And so I knew instantly I must bring him for an interview.

May 17, 2024

The observation of a Spin Berry curvature-enhanced orbital Zeeman effect in a kagome metal

Posted by in category: materials

In solid materials, magnetism generally originates from the alignment of electron spins. For instance, in the ferromagnet iron, the overall net magnetization is prompted by the alignment of spins in the same direction.

May 17, 2024

Deep-sea sponge’s ‘zero-energy’ flow control could inspire new energy efficient designs

Posted by in categories: chemistry, computing, engineering, space

Now, new research reveals yet another engineering feat of this ancient animal’s structure: its ability to filter feed using only the faint ambient currents of the ocean depths, no pumping required.

This discovery of natural ‘“zero energy” control by an international research team co-led by University of Rome Tor Vergata and NYU Tandon School of Engineering could help engineers design more efficient chemical reactors, air purification systems, heat exchangers, hydraulic systems, and aerodynamic surfaces.

In a study published in Physical Review Letters, the team found through extremely high-resolution how the skeletal structure of the Venus flower basket sponge (Euplectella aspergillum) diverts very slow deep sea currents to flow upwards into its central body cavity, so it can feed on plankton and other marine detritus it filters out of the water.

May 17, 2024

Tracing the history of perturbative expansion in quantum field theory

Posted by in categories: mathematics, particle physics, quantum physics

Perturbative expansion is a valuable mathematical technique which is widely used to break down descriptions of complex quantum systems into simpler, more manageable parts. Perhaps most importantly, it has enabled the development of quantum field theory (QFT): a theoretical framework that combines principles from classical, quantum, and relativistic physics, and serves as the foundation of the Standard Model of particle physics.

May 17, 2024

Study examines low-permittivity dielectric ceramics for microwave/millimeter-wave communication

Posted by in categories: materials, satellites

Microwave dielectric ceramics are the cornerstone of wireless communication devices, widely utilized in mobile communications, satellite radar, GPS, Bluetooth, and WLAN applications. Components made from these ceramic materials, such as filters, resonators, and dielectric antennas, are extensively used in wireless communication networks.

May 17, 2024

Researchers suppress non-Hermitian effects via ‘fake’ magnetic fields

Posted by in category: futurism

Due to the presence of non-Hermitian components, wave intensities tend to localize at the system boundary, namely the non-Hermitian skin effect. The skin behavior is protected by topology, making it insensitive to minor changes. Nevertheless, it has recently been shown that the non-Hermitian skin effect can be suppressed by real magnetic fields.

Zhang, Xue, and Zhang’s graduate student Hau Tian Teo wondered, “Can a ‘fake’ —pseudomagnetic field—also suppress the non-Hermitian skin effect?” The team then performed on a two-dimensional lattice array to study the topology and movement of the skin behavior.

By switching on the pseudomagnetic field, the team discovered that the skin states can be pushed into the bulk. “This movement from skin to bulk can be precisely traced by a theoretically predicted trajectory,” Teo suggests. In addition to the movement, the suppression is reflected in the reduction of topological number.

Page 12 of 11,187First910111213141516Last