Results 1 to 10 of about 71,961 (195)
Recontextualization practices: A scale of directness
Frontiers in Communication, 2023 I analyze Israel president Rivlin's 2020 speech delivered against the background of ongoing COVID-19 health threats and a severe political crisis, and its follow-ups in online news articles and in ordinary readers' comments on news sites and on Facebook.
Elda Weizman
doaj +1 more source
Digital modems of minimum frequency shift keying signals and their characteristics
Физика волновых процессов и радиотехнические системы, 2023 Background. The need to describe the features of the formation of minimum frequency shift keying signals, reveal the advantages of this type of modulation, provide circuits for digital demodulators of minimum frequency shift keying signals that provide ...
Anatoly I. Tyazhev
doaj +1 more source
Computers, 2022 This study proposed a two-stage method, which combines a convolutional neural network (CNN) with the continuous wavelet transform (CWT) for multiclass modulation classification. The modulation signals’ time-frequency information was first extracted using
Ahmed Mohammed Abdulkarem +8 more
doaj +1 more source
Immune, metabolism and therapeutic targets in RA (Rheumatoid Arthritis) [PDF]
BIO Web of Conferences, 2022 Rheumatoid arthritis is a classic autoimmune disease, the pathogenesis of which is closely linked to the auto-reactivity of immune cells and joint inflammation. Three cell types, namely T cells, macrophages and fibroblast-like synoviocytes (FLS), play an
Liu Keying
doaj +1 more source
Key management for substations: Symmetric keys, public keys or no keys? [PDF]
2011 IEEE/PES Power Systems Conference and Exposition, 2011 In this paper, we discuss symmetric-key and public-key protocols for key management in electricity transmission and distribution substations — both for communication within substations, and between substations and the network control center. Key management in the electricity network is widely regarded as a challenging problem, not only because of the ...
Shailendra Fuloria +3 more
openaire +1 more source
Improved Frequency Sweep Keying CDMA Using Faster R-CNN for Extended Ultrasonic Crosstalk Reduction
Sensors, 2023 Ultrasonic sensors are inexpensive and provide highly accurate measurements, even with simple hardware configurations, facilitating their use in various fields.
Ga-Rin Park +2 more
doaj +1 more source
Two-photon-absorption-based OSNR monitor for NRZ-PSK transmission systems [PDF]
, 2010 A two-photon absorption microcavity-based technique for monitoring in-band optical signal-to-noise ratio (OSNR) in nonreturn-to-zero phase-shift-keying systems is presented.
Anandarajah, Prince M. +10 more
core +1 more source
Theoretical performance comparison between reference-based coherent BPSK and BCH coded differential BPSK [PDF]
, 1992 Both channel sounding and channel coding are well-known techniques for improving bit error rate (BER) performance of data transmission over a narrowband mobile radio channel.
Bateman, A, Li, M, McGeehan, JP
core +2 more sources
Coherent optical binary polarisation shift keying heterodyne system in the free-space optical turbulence channel [PDF]
, 2011 In this paper, analytical and simulation results for the bit error rate (BER) performance and fading penalty of a coherent optical binary polarization shift keying (2PolSK) heterodyne system adopted for a free space optical (FSO) communication link ...
C.G. Lee +5 more
core +1 more source
PG-Keys: Keys for Property Graphs [PDF]
Proceedings of the 2021 International Conference on Management of Data, 2021 We report on a community effort between industry and academia to shape the future of property graph constraints. The standardization for a property graph query language is currently underway through the ISO Graph Query Language (GQL) project. Our position is that this project should pay close attention to schemas and constraints, and should focus next ...
Angles, Renzo +16 more
openaire +3 more sources