Results 41 to 50 of about 14,288 (143)

Gallium Nitride‐Based Electrode Materials for Supercapacitors: From Wide Band Semiconductor to Energy Storage Platform

open access: yesSmall, EarlyView.
This review focuses on capability of Gallium Nitride (GaN)‐based supercapacitors, bordering the advancement from porous architecture to novel hybrid nanostructures. It systematically investigates synthesis approaches and charge storage mechanisms that generate remarkable energy densities and competent cyclic stability.
Farasat Haider   +7 more
wiley   +1 more source

Self-Interference Cancellation and Channel Estimation in Multicarrier-Division Duplex Systems With Hybrid Beamforming

open access: yesIEEE Access, 2020
Design of full-duplex (FD) wireless systems faces many challenges, including self-interference cancellation (SIC), capability to provide high capacity, high flexibility for operation, best usage of resources, etc.
Bohan Li   +3 more
doaj   +1 more source

A Two-Stage Wideband RF Cancellation of Coupled Transmit Signal for Bi-Static Simultaneous Transmit and Receive System

open access: yesIEEE Journal of Microwaves, 2022
Wireless technology is growing at a fast rate to accommodate the expanding user demands. Currently, the radio frequency (RF) spectrum is overcrowded. Hence, it is more susceptible to signal fratricide and interference. To enhance spectrum access, in-band
Md Nurul Anwar Tarek   +4 more
doaj   +1 more source

Interference Management with Partial Uplink/Downlink Spectrum Overlap

open access: yes, 2015
Simultaneous reuse of spectral resources by uplink and downlink, denoted as in-band full duplex (FD) communication, is promoted to double the spectral efficiency when compared to its half-duplex (HD) counterpart. Interference management, however, remains
Alouini, Mohamed-Slim   +3 more
core   +1 more source

A ‘Wholly Unjustifiable Treatment of British Subject’? The Detention of W. T. Goode in the Baltic, 1919

open access: yesHistory, EarlyView.
Abstract In the summer of 1919, W. T. Goode, the Manchester Guardian’s special correspondent in Russia and the Baltic, was arrested in the Estonian capital Tallinn and briefly detained aboard a British warship. Goode's detention caused a furore, leading to accusations of kidnap, heated commentary in the press and questions in parliament.
Colin Storer
wiley   +1 more source

A Full Duplex Transceiver with Reduced Hardware Complexity

open access: yes, 2017
For future wireless communication systems, full duplex is seen as a possible solution to the ever present spectrum shortage. The key aspect to enable In-Band Full Duplex (IBFD) is sufficient cancellation of the unavoidable Self-Interference (SI). In this
Dassonville, David   +3 more
core   +1 more source

Sanctions, National Security, and Free Speech

open access: yesGlobal Policy, EarlyView.
ABSTRACT A fundamental, but largely overlooked, aspect of the New Washington Consensus is the use of national security arguments to restrict speech and punish disfavored speakers. Although the United States has a longer history of using sanctions to restrict speech in the terrorism context, it has recently applied sanctions to restrict political speech,
Joshua Andresen
wiley   +1 more source

Impacts of Imperfect Channel State Information, Transceiver Hardware, and Self-Interference Cancellation on the Performance of Full-Duplex MIMO Relay System

open access: yesSensors, 2020
Imperfect channel state information (I-CSI) and imperfect transceiver hardware often happen in wireless communication systems due to the time-varying and random characteristics of both wireless channels and hardware components.
Ba Cao Nguyen   +3 more
doaj   +1 more source

Photonic-Enabled Image Rejection Mixer with Simultaneous Wideband Self-Interference Cancellation for In-Band Full-Duplex System

open access: yesPhotonics, 2023
In this paper, a photonic-enabled image rejection mixer (IRM) that features an ultrawideband self-interference cancellation (SIC) function and a compact configuration is proposed. The parameter tuning of SIC is realized in an optical domain, which avoids
He Li   +8 more
doaj   +1 more source

National identity after conquest

open access: yesAmerican Journal of Political Science, EarlyView.
Abstract Conquering powers routinely adopt state‐directed nationalization projects that seek to make the boundaries of the nation coterminous with the (newly expanded) boundaries of the state. To this end, they implement policies that elevate the economic status of individuals who embrace the occupier's national identity and discriminate against those ...
Christopher Carter, Daniel W. Gingerich
wiley   +1 more source

Home - About - Disclaimer - Privacy