Results 141 to 150 of about 5,337,605 (357)

Performance of the coherent optical binary polarization-shift-keying heterodyne system in free space optical communications using a lognormal atmospheric turbulence model MIC-CPE 2010

, 2010
In this paper, 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 free space optical (FSO) communication links with a log-normal ...
Ghassemlooy, Zabih, Popoola, Wasiu Oyewole, Tang, Xuan, Rajbhandari, Sujan, Lee, Chung Ghiu   +4 more
core  

Homodyne Solid-State Biased Coherent Detection of Ultra-Broadband Terahertz Pulses with Static Electric Fields. [PDF]

Nanomaterials (Basel), 2021
Tomasino A, Piccoli R, Jestin Y, Le Drogoff B, Chaker M, Yurtsever A, Busacca A, Razzari L, Morandotti R.   +8 more
europepmc   +1 more source

A Return to Normality: A Descriptive Qualitative Interview Study Exploring the Patient Experience of Gout Flare Resolution

Arthritis Care &Research, EarlyView.
Objective Although the definition of a gout flare is well established, the state of gout flare resolution has not yet been defined. This study aimed to explore patients’ experiences and perceptions of gout flare resolution. Methods Semistructured interviews were conducted with 24 people with gout, guided by open‐ended questions exploring their ...
Sarah Stewart, Anne Horne, Angelo Gaffo, Lisa K. Stamp, N. Lawrence Edwards, Nicola Dalbeth   +5 more
wiley   +1 more source

Successive-relaying-aided decode-and-forward coherent versus noncoherent cooperative multicarrier space–time shift keying

, 2013
—Successive-relaying-aided (SR) cooperative multi-carrier (MC) space–time shift keying (STSK) is proposed for frequency-selective channels. We invoke SR to mitigate the typical 50% throughput loss of conventional half-duplex relaying schemes and MC code ...
Li, Li, Chen, Sheng, Kadir, Mohammad Ismat, Hanzo, Lajos   +3 more
core  

Mapping Erosion Hotspots: Coherent Change Detection in the Quilpie Region, Queensland, Australia [PDF]

Erosion is a powerful force that has moulded the Earth ever since water has been present on its rocky surface. In its seemingly harmless pursuit, erosion threatens ecosystems, reduces agricultural production, and impacts water quality.
Kyran Cook, Agha Karimi, Armin, Kevin McDougall, Cook, Kyran, McDougall, Kevin, Grinham, Alistair, Armin Agha Karimi, Alistair Grinham   +7 more
core   +1 more source

What Do Large Language Models Know About Materials?

Advanced Engineering Materials, EarlyView.
If large language models (LLMs) are to be used inside the material discovery and engineering process, they must be benchmarked for the accurateness of intrinsic material knowledge. The current work introduces 1) a reasoning process through the processing–structure–property–performance chain and 2) a tool for benchmarking knowledge of LLMs concerning ...
Adrian Ehrenhofer, Thomas Wallmersperger, Gianaurelio Cuniberti   +2 more
wiley   +1 more source

Low-complexity high-performance GFSK receiver with carrier frequency offset correction

, 2004
This paper presents an implementation of a GFSK receiver based on matched filtering of a sequence of K successive bits. This enables improved detection and superior BER performance but requires 2K matched filters of considerable complexity.
Weiss, Stephan, C. Tibenderana, S. Weiss, Tibenderana, C., Weiss, S., Tibenderana, Charles   +5 more
core   +1 more source

Detection of a coherent signal of known phase

Information and Control, 1975
A novel algebraic technique is employed to find asymptotic solutions for Helstrom's integral equation for a single-cavity-mode detector of a coherent signal of known phase. At high and low temperatures, the detection probability is related to the fixed false-alarm probability.
openaire   +1 more source

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

Advanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar, Dhanadeep Dutta, G. Bharat Reddy   +2 more
wiley   +1 more source

Burst-by-Burst Adaptive Multiuser Detection CDMA: A Framework for Existing and Future Wireless Standards

, 2003
This paper provides a broad overview of the multiuser detection literature of the past few years in a nonmathematical, easily accessible approach. The treatment is then extended to the comparative study of channel-quality controlled burst-by-burst (BbB ...
Kuan, E.L., Hanzo, L.
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