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Pratt & Whitney Double Wasp R-2800 CB16, 2-Row, Radial 18 Engine

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. Type: Reciprocating, 18 cylinders, ...
insider.si.edu

Plate 1 from a Set of 6, "Decoration d'une porte double à placard"

This media is in the public domain (free of copyright restrictions). You can copy, modify, and distribute this work without contacting the Smithsonian. For more information, visit the Smithsonian's ...
IEEE

A Millimeter-Wave Phased-Array Channel Sounder for Double-Directional Communication and Localization Channel Descriptions

Abstract: Knowledge of the properties of millimeter-wave (mmWave) propagation channels is important for the development and deployment of 5G and 6G wireless systems. This article presents a channel ...
IEEE

Soft Bionic Skin With Touch-Slip and Thermal Perception Using Double-Layer Distributed FBG Sensing Array

Abstract: A flexible bionic skin using fiber Bragg grating (FBG) is proposed in this paper, and a double-layer distributed sensing array unit is designed which can realize the detection of pressure, ...