Results 91 to 100 of about 7,039,787 (310)

Hybrid WDM/OCDMA for next generation access network

open access: yes, 2007
Hybrid wavelength division multiplexing/optical code division multiple access (WDM/OCDMA) passive optical network (PON), where asynchronous OCDMA traffic transmits over WDM network, can be one potential candidate for gigabit-symmetric fiber-to-the-home ...
CINCOTTI, GABRIELLA   +13 more
core   +1 more source

Photonic Microwave Signal Mixing Using Sagnac-Loop-Based Modulator and Polarization-Dependent Modulation

open access: yesIEEE Photonics Journal, 2016
A photonic-assisted microwave mixer using a Sagnac-loop-based modulator and polarization-dependent modulation is proposed and experimentally demonstrated.
Beilei Wu   +4 more
doaj   +1 more source

Malformin A1–mediated cytotoxicity in ovarian cancer cells occurs through pyroptosis and autophagy

open access: yesFEBS Open Bio, EarlyView.
This study investigated the effects of the natural compound Malformin A1 (MA1) on the cytoskeleton that regulates cell proliferation and migration. Disruption of the cytoskeleton can impair these processes and promote cancer cell death. MA1 disrupted cytoskeletal organization, induced DNA damage, inflammation, activated autophagy, and pyroptosis ...
Nada Abdullah Hassan   +11 more
wiley   +1 more source

Protected Ethernet Rings for Optical Access Networks [PDF]

open access: yes, 2006
In this paper we propose a centralized link layer architecture for providing low latency fault recovery for optical access rings. This architecture exploits the naturally uneven breakdown of network management responsibilities between the components of ...
Habel, Kai   +2 more
core  

KDAC6 alters cell morphology and motility through positive and negative modulation of F‐actin distribution

open access: yesFEBS Open Bio, EarlyView.
KDAC6 has been associated with cell motility and actin structures, but specific domain contributions are not established. The two catalytic domains have differential effects on motility and F‐actin regulation, affecting cortical F‐actin density, motility, stress fibers, and cell spreading.
Taylor V. Joseph   +7 more
wiley   +1 more source

Performance optimization of free-space optical communication protocols based on results from FSO demonstrations [PDF]

open access: yes, 2007
The mobile free-space optical channel mainly suffers from relatively long link outages, produced by short-term blockings of the line-of-sight (obstacles, clouds), pointing- and tracking-errors or deep signal-fades caused by index of refraction turbulence
Bernhard Epple, Epple, Bernhard
core   +1 more source

Avidin is evolutionarily conserved in fish but dispensable for development and resistance against Streptococcus agalactiae in zebrafish

open access: yesFEBS Open Bio, EarlyView.
The presence of biotin‐binding avidin proteins in fish and their biological significance are poorly characterized. We cataloged fish avidins and demonstrate that they are widely present and evolutionarily conserved. We created avd knockout zebrafish and show that zebavidin is dispensable for development and that resistance of avd knockout embryos in ...
Anni K. Saralahti   +5 more
wiley   +1 more source

Underwater optical wireless sensor network [PDF]

open access: yes
The thesis details the development of a short range, multi-hop underwater optical wireless sensor network. Multi-hop underwater optical wireless communication using a line of sight (LOS) link can provide a greater range compared to a single hop ...
Ahmad, Zahir Uddin
core  

Frequency-Shift Monitoring of Optical Filter Based on Optical Labels over FTN-WDM Transmission Systems

open access: yes, 2023
Optical network monitoring and soft failure identification such as optical filter shifting and filter tightening are increasingly significant for the complex and dynamic optical networks of the future.
Liqian Wang   +5 more
core   +1 more source

Frequency-Multiplexed Barker-Coded Φ-OTDR for High-Speed Distributed Acoustic Sensing

open access: yesIEEE Photonics Journal
Pulse pre-coding Φ-OTDR has been widely employed to enhance the signal-to-noise ratio (SNR) of recovery perturbation while with the compromising of interrogation frequency. In this paper, a novel frequency-multiplexed Barker-coded Φ-OTDR is
Wanxin Li   +6 more
doaj   +1 more source

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