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Scientists just played prehistoric shell trumpets used as ancient walkie talkies for the first time in 6,000 years

In a series of small, clustered archaeological sites along the Llobregat River basin in Catalonia, a pattern has quietly ...

Farewell to Quartz Dependence-Lithium Niobate Drives Dual Innovations in Materials and Structure for Trace Gas Detection

In this paper, a novel self-designed inverted-triangular lithium niobate tuning fork (LiNTF) was used to construct gas ...
IEEE

Spatio-Temporal Frequency Distribution Analysis in Systems With Grid-Forming and Grid-Following Inverters: A New Perspective From Frequency Domain

Abstract: The high penetration of inverter-based resources (IBRs) in power systems has brought challenges to system frequency stability due to reduced inertia. The conventional method for frequency ...
IEEE

Constructing Frequency Modulation-Broadcasting Map Based on Semi-Supervised Clustering

Abstract: The continuous evolution of current and future wireless networks across land, sea, air, and space places increasing demands on broadcasting coverage capabilities. Existing models are ...
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What Is DOD’s Cybersecurity Risk Management Construct?

Adam Stone writes on technology trends from Annapolis, Md., with a focus on government IT, military and first-responder technologies. The Pentagon plans to change the way it addresses cybersecurity ...