Results 21 to 30 of about 4,819,979 (323)

Strategy to Improve Edge-Based Smoothed Finite Element Solutions Using Enriched 2D Solid Finite Elements

open access: yesApplied Sciences, 2021
In this paper, we present an automatic procedure that enhances the solution accuracy of edge-based smoothed 2D solid finite elements (three-node triangular and four-node quadrilateral elements).
Min-Han Oh, San Kim
doaj   +1 more source

Information hiding with adaptive steganography based on novel fuzzy edge identification

open access: yesDefence Technology, 2019
The evolution in communication techniques has created wide threats for crucial information transfer through a communication channel. Covert communication with steganography is a skill of concealing secret information within cover object and hence shields
Sanjeev Kumar   +2 more
doaj   +1 more source

Evolution of Canada's Boreal Forest Spatial Patterns as Seen from Space. [PDF]

open access: yesPLoS ONE, 2016
Understanding the development of landscape patterns over broad spatial and temporal scales is a major contribution to ecological sciences and is a critical area of research for forested land management.
Paul D Pickell   +4 more
doaj   +1 more source

On Approximating Restricted Cycle Covers [PDF]

open access: yes, 2006
A cycle cover of a graph is a set of cycles such that every vertex is part of exactly one cycle. An L-cycle cover is a cycle cover in which the length of every cycle is in the set L. The weight of a cycle cover of an edge-weighted graph is the sum of the
G. Ausiello   +9 more
core   +9 more sources

Prey removal in cotton crops next to woodland reveals periodic diurnal and nocturnal invertebrate predation gradients from the crop edge by birds and bats

open access: yesScientific Reports, 2021
Factors influencing the efficacy of insectivorous vertebrates in providing natural pest control services inside crops at increasing distances from the crop edge are poorly understood.
Heidi L. Kolkert   +3 more
doaj   +1 more source

Parameterized Complexity of Edge Interdiction Problems [PDF]

open access: yes, 2014
We study the parameterized complexity of interdiction problems in graphs. For an optimization problem on graphs, one can formulate an interdiction problem as a game consisting of two players, namely, an interdictor and an evader, who compete on an ...
Guo, Jiong, Shrestha, Yash Raj
core   +1 more source

Effect of location and dimensions of welded cover plate on stress intensity factors of cracked plates

open access: yesAin Shams Engineering Journal, 2013
Three dimensional finite element model was utilized to determine mode I stress intensity factor through the front of a single edge crack in main plate with welded cover plate.
Amr A. Abd-Elhady
doaj   +1 more source

Evaluating establishment of conservation practices in the Conservation Reserve Program across the central and western United States

open access: yesEnvironmental Research Letters, 2021
The U.S. Department of Agriculture’s Conservation Reserve Program (CRP) is one of the largest private lands conservation programs in the United States, establishing perennial vegetation on environmentally sensitive lands formerly in agricultural ...
Mark W Vandever   +7 more
doaj   +1 more source

Topographic Variation in Forest Expansion Processes across a Mosaic Landscape in Western Canada

open access: yesLand, 2021
Changes to historic fire and grazing regimes have been associated with the expansion of tree cover at forest–grassland boundaries. We evaluated forest expansion across a mosaic landscape in western Canada using aerial photos, airborne laser scanning, and
Larissa Robinov   +2 more
doaj   +1 more source

Edge Dominating Sets and Vertex Covers

open access: yesDiscussiones Mathematicae Graph Theory, 2013
Bipartite graphs with equal edge domination number and maximum matching cardinality are characterized. These two parameters are used to develop bounds on the vertex cover and total vertex cover numbers of graphs and a resulting chain of vertex covering ...
Dutton Ronald, Klostermeyer William F.
doaj   +1 more source

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