Results 1 to 10 of about 71,257 (294)
Design, implementation and experiment of a YeSQL Web Crawler [PDF]
arXiv, 2012 We describe a novel, "focusable", scalable, distributed web crawler based on GNU/Linux and PostgreSQL that we designed to be easily extendible and which we have released under a GNU public licence. We also report a first use case related to an analysis of Twitter's streams about the french 2012 presidential elections and the URL's it contains.
Pierre Jourlin +4 more
arxiv +5 more sources
Optimal Locomotion for Limbless Crawlers [PDF]
Physical Review E, 2022 Limbless crawling is ubiquitous in biology, from cells to organisms. We develop and analyze a model for the dynamics of one-dimensional elastic crawlers, subject to active stress and deformation-dependent friction with the substrate. We find that the optimal active stress distribution that maximizes the crawler's center of mass displacement given a ...
Sreejith Santhosh, Mattia Serra
arxiv +4 more sources
Science Advances, 2022 Biomimetic soft robotic crawlers have attracted extensive attention in various engineering fields, owing to their adaptivity to different terrains. Earthworm-like crawlers realize locomotion through in-plane contraction, while inchworm-like crawlers exhibit out-of-plane bending-based motions. Although in-plane contraction crawlers demonstrate effective
Qiji Ze +9 more
openaire +3 more sources
Development and Evaluation of the Traction Characteristics of a Crawler EOD Robot
Applied Sciences, 2021 Today, terrestrial robots are used in a multitude of fields and for performing multiple missions. This paper introduces the novel development of a family of crawling terrestrial robots capable of changing very quickly depending on the missions they have ...
Lucian Ștefăniță Grigore +3 more
doaj +2 more sources
A Magneto-Active Elastomer Crawler with Peristaltic and Caterpillar Locomotion Patterns
Actuators, 2021 In this work we present a soft crawler fabricated using a magneto-active elastomer. The crawler is controlled by an external magnetic field to produce two locomotion patterns: peristaltic and caterpillar crawling.
Tsam Lung You +2 more
doaj +2 more sources
Ground Pressure Changes Caused by MHT 8002HV Crawler Harvester Chassis
Croatian Journal of Forest Engineering, 2021 Ground contact pressures exerted by elements of the machine chassis on the ground in the forest are associated with the machine impact on the soil during its operation.
Mariusz Kormanek, Jiří Dvořák
doaj +2 more sources
Untethered bistable origami crawler for confined applications [PDF]
Communications EngineeringMagnetically actuated miniature origami crawlers are capable of robust locomotion in confined environments but are limited to passive functionalities.
Catherine Jiayi Cai +2 more
doaj +2 more sources
A Pure Electric Driverless Crawler Construction Machinery Walking Method Based on the Fusion SLAM and Improved Pure Pursuit Algorithms [PDF]
Sensors, 2023 Driverless technology refers to the technology that vehicles use to drive independently with the help of driverless system under the condition of unmanned intervention.
Jiangdong Wu +5 more
doaj +2 more sources
International Journal on Web Service Computing, 2015 Nowadays web pages are implemented in various kinds of languages on the Web and web crawlers are important for search engine. Language specific crawlers are crawlers that traverse and collect the relative web pages using the successive URls of web page. There are very few research areas in crawling for Myanmar Language web sites.
Su Mon Khine, Yadana Thein
openalex +4 more sources
Comparative analysis of some search engines
South African Journal of Science, 2010 We compared the information retrieval performances of some popular search engines (namely, Google, Yahoo, AlltheWeb, Gigablast, Zworks and AltaVista and Bing/MSN) in response to a list of ten queries, varying in complexity.
Joseph Edosomwan, Taiwo Edosomwan
doaj +13 more sources