Results 81 to 90 of about 1,734,941 (332)

Improving the performance of focused web crawlers

open access: yesData & Knowledge Engineering, 2009
This work addresses issues related to the design and implementation of focused crawlers. Several variants of state-of-the-art crawlers relying on web page content and link information for estimating the relevance of web pages to a given topic are proposed.
Πετρακης Ευριπιδης(http://users.isc.tuc.gr/~epetrakis)   +3 more
openaire   +3 more sources

Long‐term nutrient addition and grazing exclusion determine flower abundance, diversity and community composition in high‐latitude grasslands

open access: yesOikos, EarlyView.
The abundance and composition of flowers within plant communities shape the resources available to flower‐visiting insects. However, it remains unclear how nutrient enrichment and changes in grazing impact plant communities and their floral resources, and whether these effects contribute to ongoing pollinator decline. We investigated how the abundance,
Nicolina Johanson   +4 more
wiley   +1 more source

Toward a Framework for Understanding Localization in Its Institutional Context: A Systems Perspective for Incorporating Local Values

open access: yesPublic Administration and Development, EarlyView.
ABSTRACT This paper explores how we might integrate local traditional values into a systems approach for analyzing and maximizing localization in the context of foreign aid. The paper situates localization and its operationalization in the older and broader literature on the political economy of foreign aid.
Jennifer M. Brinkerhoff
wiley   +1 more source

Using AI and Big Data to Reduce Global Illegal Trade in Plants

open access: yes
Biological Diversity, EarlyView.
Hai Ren, Yifu Wang, Stephen Blackmore
wiley   +1 more source

Mechanical performance of bio‐based fiber reinforced polymer composites: A review

open access: yesPolymer Composites, EarlyView.
Applications of bio‐based fiber reinforced polymer composites in various sectors. Abstract Natural fiber‐reinforced polymeric composites (NFRCs) offer a sustainable solution at the intersection of environmental consciousness and materials engineering. These composites address plastic pollution and industrial material demands by utilizing natural fibers
Daksh Shelly   +5 more
wiley   +1 more source

Optimizing Epoxy Vitrimer Composites With Sustainable Cellulose Nanofibril Reinforcements: Enhancing Thermal Dimensional Stability While Preserving Dynamic Covalent Behavior

open access: yesPolymer Composites, EarlyView.
A vitrimer nanocomposite based on nanofibrillated cellulose was fabricated using controlled resin infiltration, without the need for any functionalization. It exhibited excellent thermal dimensional stability and recyclability, positioning it as a promising material for next‐generation, eco‐responsible composites and protective coating aligned with ...
Isis Castro‐Cabrera   +3 more
wiley   +1 more source

Robust β‐myrcene block copolymer elastomeric vitrimers

open access: yesPolymer International, EarlyView.
Myrcene‐based vitrimeric elastomers were compared: statistical (poly(styrene‐stat‐myrcene‐stat‐AAEMA)] versus ‘hard–soft’ diblock (poly(styrene)‐block‐poly(myrcene‐co‐AAEMA)). The diblock's ability to anchor the glassy poly(styrene) blocks in a self‐assembled microstructure was effective – leading to four times higher tensile stress and ten times ...
Chong Yang Du   +2 more
wiley   +1 more source

Design of Web Crawler for the Client - Server Technology [PDF]

open access: gold, 2015
Md. Abu Kausar   +2 more
openalex   +1 more source

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