Results 81 to 90 of about 320,440 (285)

Security-reliability tradeoff analysis of artificial noise aided two-way opportunistic relay selection

open access: yes
In this paper, we investigate the physical-layer security of cooperative communications relying on multiple twoway relays using the decode-and-forward (DF) protocol in the presence of an eavesdropper, where the eavesdropper appears to tap the ...
Chen, Xiaoshu   +4 more
core   +1 more source

A Latent Process Model for Dementia and Psychometric Tests

open access: yes, 2007
We jointly model longitudinal values of a psychometric test and diagnosis of dementia. The model is based on a continuous-time latent process representing cognitive ability.
Commenges, Daniel   +2 more
core   +4 more sources

The effect of high- and low-frequency previews and sentential fit on word skipping during reading [PDF]

open access: yes, 2014
In a previous gaze-contingent boundary experiment, Angele and Rayner (2013) found that readers are likely to skip a word that appears to be the definite article the even when syntactic constraints do not allow for articles to occur in that position.
Angele, Bernhard   +3 more
core   +1 more source

Temporal and Cell‐Specific Regulation of Synaptic Homeostasis by the Chromatin Remodeler Chd1

open access: yesAdvanced Science, EarlyView.
Chd1, the Drosophila homologue of mammalian CHD2 ‐ a gene linked to autism, epilepsy, and intellectual disability, is required for synaptic homeostatic plasticity. Chd1 in glia is necessary for the rapid induction of synaptic homeostasis, whereas Chd1 in motoneurons, muscle, and glia is critical for long‐term maintenance.
Danielle T. Morency   +19 more
wiley   +1 more source

A Synchronization Approach Based on Bidirectional Correlation Search for Aperiodic Chaotic Direct Sequence Spread Spectrum Signals

open access: yesIEEE Access, 2020
The chaotic direct sequence spread spectrum (CD3S) is one of the distinguished techniques providing physical layer secrecy and low probability of intercept (LPI) in wireless communication.
Guogang Yuan   +4 more
doaj   +1 more source

Photon statistics in the macroscopic realm measured without photon-counters [PDF]

open access: yes, 2009
In a macroscopic realm, in which photons are too many for being counted by any photon counting detector, photon statistics can be measured by using detectors simply endowed with linear response.
Andreoni, Alessandra, Bondani, Maria
core   +2 more sources

Rapid and Direct Detection of Methamphetamine in Biofluids using a MXene‐Enabled Electrochemical Sensor

open access: yesAdvanced Science, EarlyView.
A MXene‐enhanced electrochemical sensor enables the rapid and direct detection of methamphetamine. Molecular simulations reveal that specific MXene surface functional groups act as key signal amplifiers by facilitating interfacial interactions. The sensor demonstrates high sensitivity and robust performance in complex biological matrices.
Ri Wang   +7 more
wiley   +1 more source

Recognition of intrapulse modulation mode in radar signal with BRN-EST

open access: yesJournal of Electronic Science and Technology
Neural network-based methods for intrapulse modulation recognition in radar signals have demonstrated significant improvements in classification accuracy. However, these approaches often rely on complex network structures, resulting in high computational
Yan Cheng, Ke Mei, Hao Zeng
doaj   +1 more source

Intercept-resend attacks in the Bennett-Brassard 1984 quantum key distribution protocol with weak coherent pulses

open access: yes, 2004
Unconditional security proofs of the Bennett-Brassard protocol of quantum key distribution have been obtained recently. These proofs cover also practical implementations that utilize weak coherent pulses in the four signal polarizations.
A. S. Holevo   +10 more
core   +1 more source

CoMaLit - II. The scaling relation between mass and Sunyaev-Zel'dovich signal for Planck selected galaxy clusters [PDF]

open access: yes, 2015
We discuss the scaling relation between mass and integrated Compton parameter of a sample of galaxy clusters from the all-sky {\it Planck} Sunyaev-Zel'dovich catalogue.
Ettori, Stefano   +2 more
core   +3 more sources

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