Results 51 to 60 of about 10,064 (262)

Advances and Trends in Terrain Classification Methods for Off‐Road Perception

open access: yesJournal of Field Robotics, EarlyView.
ABSTRACT Off‐road autonomous vehicles (OAVs) are becoming increasingly popular for navigating challenging environments in agriculture, military, and exploration applications. These vehicles face unique challenges, such as unpredictable terrain, dynamic obstacles, and varying environmental conditions.
Tanzila Arafin   +5 more
wiley   +1 more source

The Local Galactic Transient Survey Applied to an Optical Search for Directed Intelligence

open access: yesThe Astrophysical Journal
We discuss our transient search for directed energy systems in local galaxies, with calculations indicating the ability of modest searches to detect optical Search for Extraterrestrial Intelligence sources in the closest galaxies. Our analysis follows P.
Alex Thomas   +28 more
doaj   +1 more source

Managing and mitigating future public health risks: Planetary boundaries, global catastrophic risk, and inclusive wealth

open access: yesRisk Analysis, EarlyView.
Abstract There are two separate conceptualizations for assessing existential risks: Planetary Boundaries (PBs) and global catastrophic risks (GCRs). While these concepts are similar in principle, their underpinning literatures tend not to engage with each other.
Eoin McLaughlin, Matthias Beck
wiley   +1 more source

Using Anomaly Detection to Search for Technosignatures in Breakthrough Listen Observations

open access: yesThe Astronomical Journal
We implement a machine learning algorithm to search for extraterrestrial technosignatures in radio observations of several hundred nearby stars, obtained with the Parkes and Green Bank Telescopes by the Breakthrough Listen collaboration.
Snir Pardo   +4 more
doaj   +1 more source

A Search for Technosignatures Around 11,680 Stars with the Green Bank Telescope at 1.15–1.73 GHz

open access: yesThe Astronomical Journal, 2023
We conducted a search for narrowband radio signals over four observing sessions in 2020–2023 with the L -band receiver (1.15–1.73 GHz) of the 100 m diameter Green Bank Telescope.
Jean-Luc Margot   +79 more
doaj   +1 more source

#FoundThem - 21st century pre-search and post-detection SETI protocols for social and digital media [PDF]

open access: yes, 2016
The transmission of news stories in global culture has changed fundamentally in the last three decades. The general public are alerted to breaking stories on increasingly rapid timescales, and the discussion/distortion of facts by writers, bloggers ...
Forgan, Duncan, Scholz, Alexander
core   +2 more sources

Wide-bandwidth high-resolution search for extraterrestrial intelligence [PDF]

open access: yes
Research accomplished in the following areas is discussed: the antenna configuration; HEMT low-noise amplifiers; the downconverter; the Fast Fourier Transform Array; the backend array; and the backend and ...
Horowitz, Paul
core   +7 more sources

Detecting Biosignatures in Complex Molecular Mixtures From Pyrolysis‐Gas Chromatography‐Mass Spectrometry Data Using Machine Learning

open access: yesJournal of Geophysical Research: Machine Learning and Computation, Volume 2, Issue 3, September 2025.
Abstract Understanding how measured molecular signals can distinguish the chemistry of life from the chemistry of the nonliving world is a central focus of astrobiology and paleobiology. We train and compare several machine learning (ML) classification models on data from pyrolysis‐gas chromatography‐mass spectrometry (py‐GC‐MS)—a widely available ...
Grethe Hystad   +6 more
wiley   +1 more source

Technosignatures Longevity and Lindy's Law

open access: yesThe Astronomical Journal
The probability of detecting technosignatures (i.e., evidence of technological activity beyond Earth) increases with their longevity, or the time interval over which they manifest.
Amedeo Balbi, Claudio Grimaldi
doaj   +1 more source

Examining the Quantification Capability of Automated Mineralogy System: A Machine Learning Approach

open access: yesJournal of Geophysical Research: Machine Learning and Computation, Volume 2, Issue 3, September 2025.
Abstract Automated mineralogy (AM) systems are a novel platform for material characterization. By analyzing the X‐rays generated from sample–electron interactions, these systems can rapidly and automatically provide mineralogical and textural descriptions of a sample.
Ao Su   +4 more
wiley   +1 more source

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