Results 281 to 290 of about 819,721 (331)

Cooperative Specific Emitter Identification via Multiple Distorted Receivers

IEEE Transactions on Information Forensics and Security, 2020
Specific emitter identification (SEI) is a technique that identifies the unique emitter from its received signal by using the specific characteristics of an emitter. In this paper, we consider an SEI problem with unknown receiver distortion.
Boxiang He, Fanggang Wang
semanticscholar   +1 more source

Selective Thermophotovoltaic Emitter with Aperiodic Multilayer Structures Designed by Machine Learning

, 2021
Controlling the thermal emission characteristics of a thermophotovoltaic (TPV) emitter can effectively reduce the thermal losses in a photovoltaic cell.
Wenbin Zhang, Boxiang Wang, Changying Zhao   +2 more
semanticscholar   +1 more source

Narrowband and Pure Violet Organic Emitter with a Full Width at Half Maximum of 14 nm and y Color Coordinate of Below 0.02.

Small, 2020
Violet organic light-emitting diodes (OLEDs) with a very narrow emission spectrum with a full width at half maximum of 14 nm and y color coordinate of 0.02 are developed using a indolo[3,2,1-jk]carbazole-derived pure violet emitter. The violet emitter, 2,
Ha Lim Lee, W. J. Chung, Jun Yeob Lee
semanticscholar   +1 more source

Slice emittance and projected emittance

Chinese Physics B, 2008
This paper presents an analytical description for the growth of the projected emittance (here just referred to the transverse emittance) based on the concept of the slice emittance in an RF photoinjector. In the RF photoinjector, the slice emittance undergoes small changes, but the projected emittance changes significantly even in the drift space after
openaire   +1 more source

High‐Efficiency Red Organic Light‐Emitting Diodes with External Quantum Efficiency Close to 30% Based on a Novel Thermally Activated Delayed Fluorescence Emitter

Advances in Materials, 2019
Researchers have spared no effort to design new thermally activated delayed fluorescence (TADF) emitters for high‐efficiency organic light‐emitting diodes (OLEDs). However, efficient long‐wavelength TADF emitters are rarely reported.
Yuan-Lan Zhang, Quan Ran, Qiang Wang, Yuan Liu, Christian Hänisch, S. Reineke, Jian Fan, L. Liao   +7 more
semanticscholar   +1 more source

Specific Emitter Identification Based on Variational Mode Decomposition and Spectral Features in Single Hop and Relaying Scenarios

IEEE Transactions on Information Forensics and Security, 2019
Specific emitter identification is the process of identifying or discriminating different emitters based on the radio frequency fingerprints extracted from the received signal.
Udit Satija, Nikita Trivedi, Gagarin Biswal, Barathram Ramkumar   +3 more
semanticscholar   +1 more source

A Multilayer Film Based Selective Thermal Emitter for Infrared Stealth Technology

Advanced Optical Materials, 2018
Engineering the radiation characteristics for the design of selective thermal emitters has been a hot topic for decades and is of great value in the fields of thermophotovoltaic systems, radiative cooling, and infrared stealth.
Liang Peng, Dongqing Liu, Haifeng Cheng, Shen Zhou, M. Zu   +4 more
semanticscholar   +1 more source

Tunnel emitter

Proceedings of the 26th Annual International Conference on Mobile Computing and Networking, 2020
Backscatter enables transmissions at orders of magnitude lower energy consumption when compared to conventional radio transmitters. Backscatter tags achieve this by the reflection or absorption of carrier signal generated from emitter devices. However, backscatter systems are limited by these emitter devices, as they are significantly energy-expensive ...
Ambuj Varshney, Lorenzo Corneo
openaire   +1 more source

Specific Emitter Identification via Convolutional Neural Networks

IEEE Communications Letters, 2018
Specific emitter identification (SEI) is a technique that distinguishes between unique emitters using the external feature measurements from their transmit signals, primarily radio frequency fingerprints.
Li Ding, Shilian Wang, Fanggang Wang, Wei Zhang   +3 more
semanticscholar   +1 more source

Wide‐Range Tuning and Enhancement of Organic Long‐Persistent Luminescence Using Emitter Dopants

Advances in Materials, 2018
Most long‐persistent luminescent (LPL) materials, which slowly release energy absorbed from ambient light, are based on inorganic compounds. Organic long‐persistent luminescent (OLPL) systems have advantages over inorganic LPL materials in terms of ...
Kazuya Jinnai, R. Kabe, C. Adachi
semanticscholar   +1 more source