Results 61 to 70 of about 31,839 (188)

Weather Effects on FSO Network Connectivity

Journal of Optical Communications and Networking, 2012
The use of relays is one of the most promising methods for mitigating impairments of the performance of free-space optical (FSO) systems and extending their limited transmission range. However, several factors contribute to significant link performance degradation.
Vavoulas, A., Sandalidis, H.G., Varoutas, D.   +2 more
openaire   +2 more sources

How deep a divide do we tolerate? Measuring the willingness to engage with differently minded others (WEDO)

Political Psychology, EarlyView.
Abstract Fostering contact across political camps is crucial to combat affective polarization and to sustain healthy democratic discourse. Researchers therefore have become increasingly interested in better understanding the factors that promote or hamper political exchange.
Melissa Jauch, Olivia Fischer, Mariela E. Jaffé, Rainer Greifeneder   +3 more
wiley   +1 more source

Machine Learning Techniques In Wdm-Fso Systems: Comparative Study

Syrian Journal for Science and Innovation
Free space optical (FSO) communication has recently received much attention from researchers due to its great advantages. FSO offers large bandwidth, ease of installation and deployment, security compared to other wireless communications, and FSO systems
Ranim Younes, Mohammad Nassr
doaj   +1 more source

There Is Always a Bigger Fish. Determinants of Power Perceptions in Swiss Biodiversity Policy

Policy Studies Journal, EarlyView.
ABSTRACT The Advocacy Coalition Framework (ACF) views power as crucial in policy processes, but the nature of coalition power, its determinants, and how to empirically measure it remain understudied. In this article, we use a mixed method approach and social network analysis to explore power relationships in the biodiversity policy subsystem in ...
Alix d'Agostino, Jascha Egli, Daniel Kübler   +2 more
wiley   +1 more source

Practical Switching-Based Hybrid FSO/RF Transmission and Its Performance Analysis

IEEE Photonics Journal, 2014
Hybrid free-space optical (FSO)/radio-frequency (RF) systems have emerged as a promising solution for high-data-rate wireless backhaul. We present and analyze a switching-based transmission scheme for the hybrid FSO/RF system.
Muneer Usman, Hong-Chuan Yang, Mohamed-Slim Alouini   +2 more
doaj   +1 more source

Bureaucratic Politics and Aid Allocation: Evidence From the US Agency for International Development

Regulation &Governance, EarlyView.
ABSTRACT We examine the impact of bureaucratic politics within the US Agency for International Development on the allocation of its development assistance. Existing studies of aid allocation have focused on donor interests, recipient needs, and recipient merit without accounting for the bureaucratic decision‐making process that helps determine these ...
Gus Greenstein, Mirko Heinzel
wiley   +1 more source

Effect of Pointing Errors on the Performance of Hybrid FSO/RF Networks

IEEE Access, 2019
The performance of a free space optics (FSO) transmission suffers from the atmospheric turbulence and the attenuation in foggy environment. By employing relay nodes, the error rate and the coverage area of the FSO communication system can be ...
Shubha Sharma, A. S. Madhukumar, R. Swaminathan   +2 more
doaj   +1 more source

Phytochemical Analysis, α-Glucosidase and α-Amylase Inhibitory Activities and Acute Toxicity Studies of Extracts from Pomegranate (Punica granatum) Bark, a Valuable Agro-Industrial By-Product

Foods, 2022
Punica granatum is a tree of the Punicaceae family which is widespread all over the world with several types of varieties. Its fruit juice is highly prized, whereas the bark, rich in in phytochemicals such as flavonoids, hydrolysable tannins, phenolic ...
Nassima Laaraj, Mohamed Bouhrim, Loubna Kharchoufa, Salima Tiji, Hasnae Bendaha, Mohamed Addi, Samantha Drouet, Christophe Hano, Jose Manuel Lorenzo, Mohamed Bnouham, Mostafa Mimouni   +10 more
doaj   +1 more source

Representativeness and Mode Effects in the Swiss Election Study (Selects): Are Paper Surveys Still Relevant?

Swiss Political Science Review, EarlyView.
Abstract Web‐based surveys have gained popularity due to their cost‐effectiveness and changing participation habits, a trend accelerated by the COVID‐19 pandemic. This raises questions about the continued value of paper‐based surveys in mixed‐mode studies like the Swiss Election Study (Selects), which uses a push‐to‐web design, offering a paper ...
Jan‐Erik Refle, Lukas Lauener, Annika Lindholm   +2 more
wiley   +1 more source

Bootstrapped low complex iterative LDPC decoding algorithms for free-space optical communication links

EURASIP Journal on Wireless Communications and Networking, 2023
In recent years, much research has been devoted to free-space optical communication (FSO). The unregulated spectrum, low implementation costs, and robust security of FSO systems all are of great importance which lead to a wide range of applications for ...
Albashir A. Youssef
doaj   +1 more source