Results 51 to 60 of about 11,238 (217)

Dezintegracja struktur wywiadowczych Związku Sowieckiego po 1991 roku - ujęcie historyczne i ocena skutków tego zjawiska

open access: yesStudia Podlaskie
Koniec „zimnej wojny” to czas zmian systemowych i restrukturyzacji rosyjskich instytucji wywiadowczych oraz struktur tego typu w innych krajach Wspólnoty Niepodległych Państw.
Józef Kozłowski
doaj   +1 more source

Analysis of possibilities for measurement effect of visibility in experimental FSO system

open access: yesOpen Computer Science, 2018
Nowadays, wireless optical systems are very popular because they offer a a lot of advantages including high speed transmission, high security levels, and low maintenance costs. One of these wireless optical systems is Free Space Optics (FSO).
Márton Michal   +3 more
doaj   +1 more source

Methods of Atmospheric Coherence Length Measurement

open access: yesApplied Sciences, 2022
Free-space optical (FSO) communication possesses the advantages of high security, large information capacity, high-speed transmission, small terminal size, low power consumption, easy and flexible deployment, etc.
Ming Li, Pengxin Zhang, Jiawei Han
doaj   +1 more source

Physicochemical Characterization and Technological‐Functional Properties of Brazil Nut Flour and Protein Concentrate

open access: yesJournal of the American Oil Chemists' Society, EarlyView.
Representation of the graphical abstract of the investigation of physicochemical, functional, and technological properties and amino acid profile of partially defatted flour and protein concentrate from Brazil nuts. ABSTRACT It was investigated the physicochemical, functional and technological properties and amino acid profile of partially defatted ...
Ana Vânia Carvalho   +5 more
wiley   +1 more source

Experimental Characterisation and Modelling of Atmospheric Fog and Turbulence in FSO [PDF]

open access: yes, 2013
Free space optical (FSO) communication uses visible or infrared (IR) wavelengths to broadcast high-speed data wirelessly through the atmospheric channel.
Ijaz, Muhammad
core  

Hybrid RF/FSO backhaul networks with statistical-QoS-Aware buffer-aided relaying

open access: yes, 2020
We investigate adaptive transmission schemes over a hybrid radio frequency (RF)/free space optical (FSO) backhaul network for connecting macro-cell base station with small-cell base station through multiple parallel buffer-aided relay nodes. The proposed
Cheng, J   +3 more
core   +1 more source

Optical, Wired and Wireless Multimedia Service Access Solutions for Trend Setting Real Estates

open access: yesCommunications, 2008
It is a well known fact that the value of real estates is raised tremendously by its connection to information technology services like Voice over IP (VoIP), IPTV, Video on Demand (VoD), basic Internet services and house-, security- and surveillance ...
Peter Mandl, P. Schrotter, E. Leitgeb
doaj   +1 more source

How curriculum modifications shape educational pathways: Evidence from linked administrative data in Switzerland

open access: yesBritish Educational Research Journal, EarlyView.
Abstract The increasing heterogeneity of learning needs and preconditions in inclusive mainstream classrooms entails that not all learners are equally able to meet the regular learning objectives. In response, various integrative measures have been implemented to tailor instruction to students' individual needs.
Robin Benz   +2 more
wiley   +1 more source

On the study of the FSO link performance under controlled turbulence and fog atmospheric conditions [PDF]

open access: yes, 2011
In this paper, the effect of turbulence and fog on the free space optical (FSO) communication systems for on off keying (OOK), pulse amplitude modulation (PAM) and subcarrier intensity modulation (SIM) based on binary phase shift keying (BPSK) is ...
Ghassemlooy, Zabih   +6 more
core  

Ensemble Consensus-based Representation Deep Reinforcement Learning for Hybrid FSO/RF Communication Systems [PDF]

open access: yes, 2022
Hybrid FSO/RF system requires an efficient FSO and RF link switching mechanism to improve the system capacity by realizing the complementary benefits of both the links.
Henna, Shagufta
core  

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