Results 121 to 130 of about 2,215,352 (275)

Highly efficient antenna systems for space communications and radio astronomy [PDF]

, 2000
B. A. Poperechenko
openalex   +1 more source

Quantum Electrometry of Non‐Volatile Space Charges in Diamond

Advanced Optical Materials, EarlyView.
Charges are generated when nitrogen vacancy qubits in diamond are illuminated by light. Transport and trapping in an electric field leads to the formation of large, stable space charge patterns that dynamically screen applied electric fields, impacting electric field sensing and photoelectric detection.
Russell M Goldblatt, Nikolai Dontschuk, Daniel J McCloskey, Andy M Martin, Alexander A. Wood   +4 more
wiley   +1 more source

Towards a more secure ATC voice communications system

, 2015
Tim H. Stelkens-Kobsch, Andreas Hasselberg, Thorsten Mühlhausen, Nils Carstengerdes, Michael Finke, Constantijn Neeteson   +5 more
openalex   +2 more sources

Observation of the Differential Goos‐Hänchen Shifts in Wavelength Domain Using a Helical Fiber Grating

Advanced Optical Materials, EarlyView.
Goos‐Hänchen shift (GHS) is a phenomenon in which an optical beam experiences a longitudinal displacement upon total internal reflection. In this work, we experimentally demonstrate an enhanced GHS in the wavelength domain using a helical fiber grating (HFG).
Zhang Meng, Yuto Kotani, Naoto Murata, Pawel Pogorzelski, Reza Abdi‐Ghaleh, Peng Wang, Hua Zhao, Hongpu Li   +7 more
wiley   +1 more source

High-dimensional multiplexing through vortex electromagnetic wave manipulation by space-time-coding metasurfaces. [PDF]

Light Sci Appl
Yang C, Wang SR, Du JC, Wang MT, Wang ZX, Chan KF, Zheng DZ, Wu GB.   +7 more
europepmc   +1 more source

Developing standards for interoperability of tactical communications systems

, 2004
Christopher J. Echols
openalex   +2 more sources

Multi‐Material Additive Manufacturing of Soft Robotic Systems: A Comprehensive Review

Advanced Robotics Research, EarlyView.
This review explores the transformative role of multi‐material additive manufacturing (MMAM) in the development of soft robotic systems. It presents current techniques, materials, and design strategies that enable functionally graded and adaptive structures.
Ritik Raj, Quan‐Chen Song, Jia‐Yang Juang   +2 more
wiley   +1 more source

Spatial and Directional Modulation Systems for Near-Field Secure Transmission. [PDF]

Sensors (Basel)
Liu J, Zhong Y, Wang Y, Gong D, Xiao Y.
europepmc   +1 more source

INSTITUTIONAL DIMENSION OF THE STRATEGIC COMMUNICATIONS SYSTEM OF UKRAINE

Valentyna Kubko
openalex   +1 more source

Advanced receiver and MIMO schemes for LTE communications system

, 2009
Simone Morosi, E. Del Re, Luca Vettori
openalex   +2 more sources