Results 21 to 30 of about 6,516,388 (287)

Quantifying performance of sheltered link-way facility in Singapore using human-centric indicators

open access: yesInternational Journal of Urban Sustainable Development, 2021
Pedestrian link-ways are important street facility for first-/last-mile mobility. This study compared pedestrians’ walking experiences on sheltered/unsheltered link-ways by collecting their perceived walking time/distance.
S. Sun   +5 more
doaj   +1 more source

A Scheme for Long-distance High-resolution Detection of Fiber Link

open access: yesGuangtongxin yanjiu, 2021
Aiming at the problem of low spatial resolution of Optical Time Domain Reflectometer (OTDR) in long distance optical fiber link detection, this paper proposes a new scheme of Linear Frequency Modulation (LFM) -Golay OTDR.
Chen LIU   +4 more
doaj   +1 more source

Distance two links

open access: yesGeometriae Dedicata, 2015
In this paper, we characterize all links in the 3-sphere with bridge number at least three that have a bridge sphere of distance two. We show that a link L has a bridge sphere of distance at most two then it falls into at least one of three categories: (1) The exterior of L contains an essential meridional sphere.
Blair, Ryan   +4 more
openaire   +3 more sources

Evaluating the Effect of the Communication Link of the Relays on the Operation Time of the Protection System

open access: yesEnergies, 2023
In case of an error in the power system, it is the duty of the protection relays to isolate the faulty part from the rest of the system as soon as possible.
Aliakbar Azari   +4 more
doaj   +1 more source

Oracles for Distances Avoiding a Failed Node or Link [PDF]

open access: yesSIAM Journal on Computing, 2008
We consider the problem of preprocessing an edge-weighted directed graph $G$ to answer queries that ask for the length and first hop of a shortest path from any given vertex $x$ to any given vertex $y$ avoiding any given vertex or edge. As a natural application, this problem models routing in networks subject to node or link failures.
DEMETRESCU, Camil   +3 more
openaire   +1 more source

A study of coastal and harbor channel effects on Underwater Wireless Optical Communication systems with BCH and LDPC error correction codes [PDF]

open access: yesInternational Journal of Electronics and Telecommunications
Owing to the benefits that they offer over traditional acoustic and RF communication, including higher data rates, reduced latency, and enhanced safety, underwater wireless optical communication (UWOC) systems have gained a solid focus.
Lenin Joseph, Sangeetha Anandan
doaj   +1 more source

Focused Crawler for Rainstorm Disaster Strategy Based on Web Space Evolutionary Algorithm [PDF]

open access: yesJisuanji gongcheng, 2019
Aiming at the shortcomings of single target optimization algorithm to solve the problem that the crawler problem is difficult to obtain the optimal weighting factor and easy to fall into the local optimum,the multi-objective optimization algorithm is ...
LIU Jingfa,LI Xin,JIANG Shengyi
doaj   +1 more source

On computing distances and latencies in link streams [PDF]

open access: yesProceedings of the 2019 IEEE/ACM International Conference on Advances in Social Networks Analysis and Mining, 2019
A short version of this text is set to be presented at the International Conference on Advances in Social Networks Analysis and Mining (ASONAM '19), in Vancouver ...
openaire   +2 more sources

Bi-Directional Data Communication using Visible Light Technology for Underwater Environment

open access: yesJurnal Elkomika, 2021
ABSTRAK Pengembangan VLC (Visible Light Communication) dapat diimplementasikan ke dalam air. Pada penelitian ini dirancang sistem komunikasi menggunakan cahaya tampak untuk komunikasi dua arah di lingkungan bawah air.
LITA LIDYAWATI   +3 more
doaj   +1 more source

Comparative Analysis and Route Optimization of State of the Art Routing Protocols

open access: yesEAI Endorsed Transactions on Mobile Communications and Applications, 2018
Performance of any network is based on the routing protocols. RIP, Session, OSPF and BGP are the few commonly used dynamic routing protocols used in today’s networks.
Inam Ullah Khan   +6 more
doaj   +1 more source

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