Results 41 to 50 of about 177,065 (284)

Advancement of Monitoring Scheme in FTTH-PON Using Access Control System (ACS) [PDF]

open access: yes, 2009
This paper proposes a new developed system named Access Control System (ACS) which is designed to enhance the monitoring, scalability and survivability of Passive Optical Network (PON) toward the implementation of full & Complete edition of Fiber-to-the ...
Syuhaimi, Mohammad
core  

UDWDM-PON using low-cost coherent transceivers with limited tunability and heuristic DWA [PDF]

open access: yes, 2016
A new Passive Optical Network (PON) for access, making use of Ultra Dense Wavelength Division Multiplexing (UDWDM) by densely spacing channels at few GHz, and introducing the “wavelength-to-the-user” concept, is proposed.
Polo Querol, Víctor   +4 more
core   +2 more sources

Choroid Plexus Enlargement and USPIO‐Based Inflammatory Feature in Cerebral Small Vessel Disease

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective The choroid plexus (CP) is a key component of the blood–cerebrospinal fluid barrier (BCSFB), but its mechanism of action in cerebral small vessel disease (CSVD) remains unclear. This study investigated CP volume (CPV) alterations and their association with conventional imaging markers in CSVD and explored the underlying role of ...
Yongqiang Qu   +11 more
wiley   +1 more source

Dual-drive LiNbO_3 interferometric Mach-Zehnder architecture with extended linear regime for high peak-to-average OFDM-based communication systems [PDF]

open access: yes, 2011
A dual-drive LiNbO3 architecture modulator with chirp management is proposed and developed offering SFDR > 25 dB in a 1.4 V bias excursion compared to only 0.5 V bias excursion in a conventional Mach-Zehnder electro-optical modulator (MZ-EOM).
Alexandre Mottet   +9 more
core   +1 more source

Comparing the Effect of Semi‐Immersive Virtual Reality, Computerized Cognitive Training, and Traditional Rehabilitation on Cognitive Function in Multiple Sclerosis: A Randomized Clinical Trial

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Cognitive impairment is a common non‐motor symptom in Multiple Sclerosis (MS), negatively affecting autonomy and Quality of Life (QoL). Innovative rehabilitation strategies, such as semi‐immersive virtual reality (VR) and computerized cognitive training (CCT), may offer advantages over traditional cognitive rehabilitation (TCR ...
Maria Grazia Maggio   +8 more
wiley   +1 more source

Triple Play Services in XG-PON Network. [PDF]

open access: yes, 2015
This paper focuses on Triple Play services in XG-PON networks and their implementation and analysis in NS-3. Nowadays, Triple Play services dominate copper/optical networks.
Horváth, T.
core  

Modelling of quasi-optical arrays [PDF]

open access: yes, 1999
A model for analyzing quasi-optical grid amplifiers based on a finite-element electromagnetic simulator is presented. This model is deduced from the simulation of the whole unit cell and takes into account mutual coupling effects.
De Lisio, Michael P.   +5 more
core   +1 more source

Experimental Evaluation of 100Cr6 Steel Microindented Surfaces Under Lubricated Nonconformal Point Contacts

open access: yesAdvanced Engineering Materials, EarlyView.
The tribological behavior of 100Cr6 steel spheres textured via Vickers microindentation is evaluated under lubricated sliding by varying both dimple size and density. Fine and dense textures significantly reduce friction across all lubrication regimes, while large dimples increase it.
Farideh Davoodi   +3 more
wiley   +1 more source

The Applications for the Calculation and Optimization of Passive Optical Networks Attenuation Characteristics

open access: yesAdvances in Electrical and Electronic Engineering, 2010
The passive optical networks represent modern and promising solution to meet the increasing demands on the transmission speed in access networks. These optical networks consist only of passive optical components, essential role play mainly the passive ...
Pavel Lafata, Jiri Vodrazka
doaj  

Low Cost Method for Testing and Troubleshooting of FTTH-PON Using Single Optical Power Meter & OTDR : A Case Study [PDF]

open access: yes, 2009
There are several methods for testing and troubleshooting a fiber-to-the-home passive optical network (FTTH-PON). The simplest method would be using a power meter which is able to detect the total loss on the network. However, to identify faulty sections
Syuhaimi, Mohammad
core  

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