Results 11 to 20 of about 51,940 (240)

Effectiveness of corridors varies among phytosociological plant groups and dispersal syndromes. [PDF]

open access: yesPLoS ONE, 2018
In agricultural landscapes, semi-natural habitats are scarce and remaining habitat patches are largely isolated. However, linear landscape elements might facilitate dispersal of plant species through the agricultural landscape matrix. We investigated the
Jan Thiele   +2 more
doaj   +1 more source

DEA Cross-Efficiency Aggregation with Deviation Degree Based on Standardized Euclidean Distance [PDF]

open access: yesMathematical Problems in Engineering, 2021
Data envelopment analysis (DEA) has been extended to cross-efficiency to provide better discrimination and ranking of decision-making units (DMUs). Current researches about cross-efficiency mainly focus on the non-uniqueness of optimal solution of linear programming and information aggregation.
Yan Zou   +3 more
openaire   +1 more source

Euclidean Distance Degree of Projective Varieties [PDF]

open access: yesInternational Mathematics Research Notices, 2019
Abstract We give a positive answer to a conjecture of Aluffi–Harris on the computation of the Euclidean distance degree of a possibly singular projective variety in terms of the local Euler obstruction function.
Maxim, Laurentiu G.   +2 more
openaire   +2 more sources

Safety risk assessment model for patrol inspection of buried oil and gas pipelines in tunnels

open access: yesYou-qi chuyun, 2022
The patrol inspection of oil and gas pipelines has the characteristics of randomness and fuzziness. In order to effectively assess the risk level of patrol inspection of buried long-distance oil and gas pipelines in tunnels, a safety risk assessment ...
Mingli SI, Fabin ZENG, Dengfeng ZHENG
doaj   +1 more source

ERDOF: outlier detection algorithm based on entropy weight distance and relative density outlier factor

open access: yesTongxin xuebao, 2021
An outlier detection algorithm based on entropy weight distance and relative density outlier factor was proposed to solve the problem of low accuracy in complex data distribution and high dimensional data sets.Firstly, entropy weight distance was ...
Zhongping ZHANG   +4 more
doaj   +2 more sources

Comparing effects of Euclidean buffers and network buffers on associations between built environment and transport walking: the Multi-Ethnic Study of Atherosclerosis

open access: yesInternational Journal of Health Geographics, 2022
Background Transport walking has drawn growing interest due to its potential to increase levels of physical activities and reduce reliance on vehicles. While existing studies have compared built environment-health associations between Euclidean buffers ...
Jingjing Li   +8 more
doaj   +1 more source

The Euclidean distance degree of smooth complex projective varieties [PDF]

open access: yesAlgebra & Number Theory, 2018
We obtain several formulas for the Euclidean distance degree (ED degree) of an arbitrary nonsingular variety in projective space: in terms of Chern and Segre classes, Milnor classes, Chern-Schwartz-MacPherson classes, and an extremely simple formula equating the Euclidean distance degree of X with the Euler characteristic of an open subset of X.
Aluffi, Paolo, Harris, Corey
openaire   +5 more sources

Damage Evaluation in Tempered Vacuum Glazing via Multivariate Statistical Methods

open access: yesApplied Sciences, 2021
The performance of tempered vacuum glazing (TVG) strongly depends on the structural parameters and degree of damage of the products. In this paper, attention was paid to six performance indicators which had a major influence on the damage of TVG, and new
Xiaobo Xi   +5 more
doaj   +1 more source

The Estimation of the Degree of Genetic Divergence Using Cluster Analysis of the Varieties of Wheat [PDF]

open access: yesAl-Qadisiyah Journal For Agriculture Sciences, 2017
A field experiment has been carried out at eight different environmental sites in the province of Diwaniya for seasonal years in 2014 and 2015 to test nine varieties of different origin wheat (Triticum aestivum L) and assembled in homogeneous groups and ...
Riyadh Jabbar Mansour al-Maliki
doaj   +1 more source

Degree four plane spanners: Simpler and better

open access: yesJournal of Computational Geometry, 2017
Let $\mathcal{P}$ be a set of $n$ points embedded in the plane, and let $\mathcal{C}$ be the complete Euclidean graph whose point-set is $\mathcal{P}$. Each edge in $\mathcal{C}$ between two points $p$, $q$ is realized as the line segment $[pq]$ and is ...
Iyad Kanj   +2 more
doaj   +1 more source

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