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Experiments with liquid metals could not only lead to exciting insights into geophysical and astrophysical flow phenomena, such as atmospheric disturbances at the rim of the sun or the flow in the Earth’s outer core, but also foster industrial applications, for example, the casting of liquid steel.

However, as are non-transparent, suitable measurement techniques to visualize the flow in the entire volume are still lacking. A team of the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) has now, for the first time, obtained a detailed three-dimensional image of a turbulent temperature-driven liquid metal flow using a self-developed method. In the Journal of Fluid Mechanics, they report on the challenges they had to overcome on the way.

Ever since researchers have been investigating the properties of turbulent flows in fluids, they have used an experiment that initially seems quite simple: the fluid is filled into a container/vessel whose base plate is heated and whose lid is cooled at the same time. A team of the Institute of Fluid Dynamics at HZDR is investigating the very details of this process.

Summary: Researchers provided new insights into brain development, revealing that different brain regions share a similar organizational structure in early stages rather than being pre-specialized. This finding, supported by advanced optical imaging, suggests a universal blueprint for brain development, which has significant implications for understanding neurodevelopmental disorders like autism and schizophrenia.

By observing synchronized activity in nerve cell networks across various brain regions, the study highlights a potential common foundation for brain disorders, offering a new perspective on their widespread impact. Future research will further explore how this shared developmental pattern evolves over time and across different brain areas.

Electromagnetic waves in the terahertz frequency range offer many advantages for communications and advanced applications in scanning and imaging, but realizing their potential poses challenges. Researchers at Tohoku University have addressed one of the key challenges by developing a new type of tunable filter for signals in the terahertz wave band. They published their work in the journal Optics Letters.

Pixart-σ weak-to-strong training of diffusion transformer for 4K text-to-image generation.

PixArt-Σ

Weak-to-strong training of diffusion transformer for 4K text-to-image generation.

In this paper, we introduce PixArt-Sigma, a Diffusion Transformer model~(DiT) capable of directly generating images at 4K resolution.


Join the discussion on this paper page.

Meta’s latest brainchild, Llama 3, is rewriting the rules of digital communication. This powerhouse AI model doesn’t just compete—it surpasses OpenAI’s GPT-4 and Google’s Gemini. Brace yourself for enhanced responsiveness, multimodal magic, and a dash of ethical finesse.

Under Zuckerberg’s visionary helm, Llama 3 dances with context, reads between the lines and delivers nuanced interactions across platforms. It’s not just about AI; it’s about redefining how we connect. 🚀🤖

https://www.reuters.com/technology/me
https://www.theverge.com/2024/2/28/24

#artificialintelligence #ai #meta #llama #artificialgeneralintelligence