Tootfinder

Brecciation at the grain scale within the lithologies of the #Winchcombe Mighei-like carbonaceous #chondrite: #meteorite was recovered, largely from a driveway, just hours after it fell to Earth, preserving evidence that its early relatives could have filled Earth’s oceans.

Spectro-Photometry and Radial Distribution of Multiple Stellar Populations in Globular Clusters from Gaia XP Spectra
V. J. Mehta, A. P. Milone, L. Casagrande, A. F. Marino, M. V. Legnardi, G. Cordoni, E. Dondoglio, S. Jang, T. Ziliotto, M. Barbieri, M. Bernizzoni, E. Bortolan, A. Bouras Moreno Sanchez, E. P. Lagioia, S. Lionetto, A. Mohandasan, F. Muratore

Spectro-Photometry and Radial Distribution of Multiple Stellar Populations in Globular Clusters from Gaia XP Spectra
Understanding the formation of multiple populations in globular clusters (GCs) represents a challenge for stellar population studies. Nevertheless, the outermost GC regions, which may retain information of the initial configuration of the multiple populations, are poorly studied. We use synthetic spectra that account for the chemical compositions of first- and second-population (1P, 2P) stars of 47 Tucanae to identify the spectral regions that are sensitive to its multiple populations. Hence, w…

Monte-Carlo Integration Based Multiple-Scattering Channel Modeling for Ultraviolet Communications in Turbulent Atmosphere
Renzhi Yuan, Xinyi Chu, Tao Shan, Mugen Peng
https://arxiv.org/abs/2406.03743

Monte-Carlo Integration Based Multiple-Scattering Channel Modeling for Ultraviolet Communications in Turbulent Atmosphere
Modeling of multiple-scattering channels in atmospheric turbulence is essential for the performance analysis of long-distance non-line-of-sight (NLOS) ultraviolet (UV) communications. Existing works on the turbulent channel modeling for NLOS UV communications either ignored the turbulence-induced scattering effect or erroneously estimated the turbulent fluctuation effect, resulting in a contradiction with reported experiments. In this paper, we establish a comprehensive multiple-scattering turb…

An analysis finds 90K images of popular anime characters on generative AI image sharing sites; ~2.5K images had multiple similarities to the original artwork (Nikkei Asia)
https://t.co/V8sk4qDtT5

AI anime flood - An infringement investigation of 90,000 images：Nikkei
Generative AI is rapidly evolving, using innovative methods to produce text and images. Although new copyright rules are on the way, the illicit use of AI is undermining Japanese anime. A Nikkei investigation reveals how AI anime is flooding the internet.

Energy-Efficient Hybrid Beamforming for Integrated Sensing and Communication Enabled mmWave MIMO Systems
Jitendra Singh, Suraj Srivastava, Aditya K. Jagannatham
https://arxiv.org/abs/2406.03737

Energy-Efficient Hybrid Beamforming for Integrated Sensing and Communication Enabled mmWave MIMO Systems
This paper conceives a hybrid beamforming design (HBF) that maximizes the energy efficiency (EE) of an integrated sensing and communication (ISAC)-enabled millimeter wave (mmWave) multiple-input multiple-output (MIMO) system. In the system under consideration, an ISAC base station (BS) with the hybrid MIMO architecture communicates with multiple users and simultaneously detects multiple targets. The proposed scheme seeks to maximize the EE of the system, considering the signal-to-interference a…

This https://arxiv.org/abs/2405.20311 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Martingale central limit theorem for random multiplicative functions
Let $α$ be a Steinhaus or a Rademacher random multiplicative function. For a wide class of multiplicative functions $f$ we prove that the sum $\sum_{n \le x}α(n) f(n)$, normalised to have mean square $1$, has a limiting distribution. The limiting distribution we find is a Gaussian times the square-root of the total mass of a random measure associated with $f$. Our result applies to $d_z$, the $z$-th divisor function, as long as $z$ is strictly between $0$ and $\tfrac{1}{\sqrt{2}}$. Other ex…

🔊 Auf radioeins läuft...
Elbow:
🎵 Lovers' Leap
#NowPlaying #Elbow
https://open.spotify.com/track/79MLUDVaih5Rck23zNOUJg
https://audiovertigoexplicit.bandcamp.com/track/lovers-leap

topology: Internet AS graph (2004)
An integrated snapshot of the structure of the Internet at the level of Autonomous Systems (ASs), reconstructed from multiple sources, including the RouteViews and RIPE BGP trace collectors, route servers, looking glasses, and the Internet Routing Registry databases. This snapshot was created around October 2004.
This network has 34761 nodes and 171403 edges.
Tags: Technological, Communication, Unweighted, Multigraph, Timestamps

This https://arxiv.org/abs/2405.15075 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Hilbert-Kunz multiplicity of fiber products and idealization rings
The main purpose of this paper is to provide formulas for the Hilbert-Kunz multiplicity of fiber products and idealization rings. We calculate the Hilbert-Kunz multiplicity of a fiber product $R \times_T S$, with $R$, $S$ and $T$ being Noetherian local rings with common characteristic and residue field. Inspired by a work of Strazzanti and Armengou we calculate the Hilbert-Kunz multiplicity of an idealization ring $R \ltimes M$, where $M$ is a finite $R$-module. We explore certain examples and …

bag_of_words: Bag of words (2008)
Five text collections in the form of bags-of-words, i.e. a bipartite document–word network. Left nodes are documents and right nodes are words. Edge weights are multiplicities. .
This network has 67963 nodes and 3710420 edges.
Tags: Informational, Text, Bipartite, Weighted, Metadata
https…