Search results for " FS"
showing 10 items of 42 documents
Rateless Codes Performance Analysis in Correlated Channel Model for GEO Free Space Optics Downlinks
2012
Fading mitigation coding techniques for space to ground free space optical communications
2014
Il corpo comunicativo. Fotografia come narrazione in Dorothea Lange
2022
In this article I explore Lange's life and work through the lens of her illness
Fundamental investigation on the mechanical behavior of weld seams
The solid state welding processes allow joints free from defects with reduced residual stresses and low distortion. However, such processes are generally characterized by a complex mechanical junction because of the particular material flow. Therefore, the design and optimization of the processes in which the solid bonding phenomenon occurs are difficult and requires a large number of tests. The purpose of this research is the description on the mechanical behavior of welded seams obtained through the friction stir welding (FSW) and linear friction welding (LFW) processes by analyzing the same phenomenon that occurs in both metallurgical processes, named the solid bonding phenomenon. The ai…
Fading mitigation coding techniques for space to ground free space optical communications (Euro Med Telco 2014)
2014
In this manuscript, a Geostationary satellite-toground Free Space Optics (FSO) downlink channel model has been implemented, which is able to predict temporal irradiance fluctuations caused by scintillation at a wide range of turbulence conditions and for different values of the zenith angle. In order to mitigate fading events that occur in FSO communications, we have also tested the performance of three different families of Rateless Codes (Luby Transform, Raptor and RaptorQ) into our model and found that RaptorQ is the best candidate to mitigate errors in FSO links.
Du nouveau sur les fusarioses du concombre : Fusarium oxysporum f.sp. radicis-cucumerinum (FORC) isolé pour la première fois en France
2000
National audience
Predictores emocionales y de personalidad que infl uyen en la aparición de las quejas somáticas en niños y en adultos
2019
Personality and emotional factors may be contributing to the emergence of somatic complaints. The purpose of this study was to analyse the combined contribution of emotional awareness, moods and personality to somatic complaints in children and adults. Method: Participants were 1,476 children (M= 9.90 years, SD= 1.27, 52.10% girls) and 940 adults (M= 32.30 years, SD= 11.62, 64% women) who were administered self-reports. Analysis was performed using fuzzy qualitative comparative analysis (fsQCA), an analytical technique that enables in-depth analysis of how a series of causal conditions contribute to a given outcome. Results: Emotional awareness, moods and personality account for 59% of high…
FLUMO: FLexible Underwater MOdem
2019
The last years have seen a growing interest in underwater acoustic communications because of its applications in marine research, oceanography, marine commercial operations, the offshore oil industry and defense. High-speed communication in the underwater acoustic channel has been challenging because of limited bandwidth, extended multipath, refractive properties of the medium, severe fading, rapid time variation and large Doppler shifts. In this paper, we show an implementation of a flexible Software-Defined Acoustic (SDA) underwater modem, where modulation parameters are completely tunable to optimize performance. In particular, we develop the system architecture following two key ideas. …