Results 31 to 40 of about 36,044 (265)
2 × 20 Gbps - 40 GHz OFDM Ro-FSO transmission with mode division multiplexing [PDF]
Journal of the European Optical Society-Rapid Publications, 2014 Radio-over-Free-Space-Optics (Ro-FSO) is a promising technology for future wireless networks. In this work, we have designed a hybrid orthogonal frequency division multiplexing (OFDM) Ro-FSO system for transmission of two independent channels by mode ...
Amphawan A., Chaudhary S., Chan V.W.S.
doaj +1 more source
Determining Parental Factors for Clinical Trial Attrition in Pediatric Acute Lymphoblastic Leukemia
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background/Objectives Despite high enrollment rates on Children's Oncology Group (COG) protocols, attrition after initial consent is challenging, introducing bias and prolonging trial completion. While adult oncology literature has identified predictors of withdrawal, little is known about caregiver decision‐making for child participation in ...
Kimberly L. Stathas +3 more
wiley +1 more source
Relay-assisted free-space optical communication [PDF]
IEEE Transactions on Wireless Communications, 2007 In this paper, we present relay-assisted transmission as a powerful fading mitigation tool for free-space optical systems operating in atmospheric turbulence channels. We study both serial (i.e., multi-hop transmission) and parallel (i.e., cooperative diversity) relaying encoupled with amplify-and-forward and decode-and-forward modes.
Majid Safari, Murat Uysal
openaire +1 more source
Feasibility Analysis Of Free Space Earth To Satellite Optical Link In Tropical Region
International Islamic University Malaysia Engineering Journal, 2012 Free Space Optics (FSO) becomes a great attention because of the chances in transmitting data up to 2.5Gbps. There are a lot of advantages offered by FSO such as easily deployment with saving time and cost and no electromagnetic interference. In spite of
Norhanis Aida M. Nor +2 more
doaj +1 more source
Structural insights into an engineered feruloyl esterase with improved MHET degrading properties
FEBS Letters, EarlyView.A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa +5 more
wiley +1 more source
Analysis of Rain Effects on Terrestrial Free Space Optics based on Data Measured in Tropical Climate
International Islamic University Malaysia Engineering Journal, 2012 Free Space Optics (FSO) shows a great alternative as the solution for last mile problem where fiber optics is unavailable due to deployment time and cost constraint. However, the feasibility of using FSO system as communication link very much depends on
Suriza Ahmad Zabidi +3 more
doaj +1 more source
FEBS Letters, EarlyView.Plasma membranes contain dynamic nanoscale domains that organize lipids and receptors. Because viruses operate at similar scales, this architecture shapes early infection steps, including attachment, receptor engagement, and entry. Using influenza A virus and HIV‐1 as examples, we highlight how receptor nanoclusters, multivalent glycan interactions ...
Jan Schlegel, Christian Sieben
wiley +1 more source
On the Capacity of Free-Space Optical Intensity Channels [PDF]
IEEE Transactions on Information Theory, 2008 New upper and lower bounds are presented on the capacity of the free-space optical intensity channel. This channel is characterized by inputs that are nonnegative (representing the transmitted optical intensity) and by outputs that are corrupted by additive white Gaussian noise (because in free space the disturbances arise from many independent sources)
Amos Lapidoth +2 more
openaire +4 more sources
Journal of Telecommunications and Information Technology, 2017 Among various conventional wireless communication systems, Free Space Optics (FSO) may be distinguished as well, which provides a good level security, high data rates, an enormous bandwidth and negligible susceptibility to electromagnetic interference ...
Navneet Dayal +2 more
doaj +1 more source
Limits and security of free-space quantum communications
Physical Review Research, 2021 The study of free-space quantum communications requires tools from quantum information theory, optics, and turbulence theory. Here we combine these tools to bound the ultimate rates for key and entanglement distribution through a free-space link, where ...
Stefano Pirandola
doaj +1 more source