Results 141 to 150 of about 115,388 (320)

Computational Fluid Dynamics Simulation and Quantification of Solar Greenhouse Temperature Based on Real Canopy Structure

Agronomy
The temperature distribution of the cucumber canopy in an energy-saving solar greenhouse was simulated in this study. The canopy temperature data of autumn and winter cucumber were collected using temperature sensors, and the spatial heterogeneity of ...
Maolin Hou, Demin Xu, Zhi Wang, Lei Meng, Liang Wang, Yuntao Ma, Jinyu Zhu, Chunli Lv   +7 more
doaj   +1 more source

Convex hull peeling

, 2022
Cette thèse porte sur la construction du convex hull peeling (qu’on pourrait traduire littéralement par enveloppe convexe pelée). Le convex hull peeling d’un ensemble localement fini X consiste à prendre l’enveloppe convexe de X , puis à enlever les points sur le bord de l’enveloppe et ensuite à répéter l’opération jusqu’à ce qu’il ne reste plus de ...
openaire   +1 more source

A novel construction approach for the pore structure model principally focuses on the controllable roundness of rock particles

Deep Underground Science and Engineering, EarlyView.
Particle rounding effects comparison of different methods: (a), (b), and (c) are the rounding results using the B‐spline curve method with different R; (d), (e), and (f) are the results of vertex rounding substitution method with different rounding radii.
Jiabin Dong, Ning Yang, Yi Jin, Ying Wu, Dandan Liu, Junling Zheng, Jingyan Zhao   +6 more
wiley   +1 more source

Freshwater fish functional diversity shows diverse responses to human activities, but consistently declines in the tropics

Ecography, EarlyView.
Freshwater environments are intertwined with human activities and the consequence has been environmental degradation and biodiversity loss. Fish provide key ecological and economic benefits, and fish abundance and diversity can be affected by human activities resulting in functional diversity (FD) changes that might scale up to ecosystem impacts ...
Romullo Guimarães de Sá Ferreira Lima, Bruno Eleres Soares, Marc Cadotte, Míriam Pilz Albrecht   +3 more
wiley   +1 more source

Planar Convex Hulls

, 2005
An attempt is made to understand some of the planar convex hull algorithms leading up to and including Chan's 1995 planar convex hull algorithm. The algorithms include: i) Graham's 1972 algorithm, ii) Jarvis' 1973 algorithm, and iii) Chan's 1995 algorithm.
openaire   +2 more sources

Convex Hulls of Curves: Volumes and Signatures [PDF]

, 2023
Carlos Améndola, Darrick Lee, Chiara Meroni   +2 more
openalex   +1 more source

Flexible methods for species distribution modeling with small samples

Ecography, EarlyView.
Species distribution models (SDMs) predict where species live or could potentially live and are a key resource for ecological research and conservation decision‐making. However, current SDM methods often perform poorly for rare or inadequately sampled species, which include most species on earth, as well as most of those of the greatest conservation ...
Brian S. Maitner, Robert L. Richards, Ben S. Carlson, John M. Drake, Cory Merow   +4 more
wiley   +1 more source

Alpha, beta and gamma diversity in relatively natural, mixed and transformed landscape scenarios

Ecography, EarlyView.
Biodiversity losses and biotic homogenisation associated with human‐induced land‐cover changes are key issues for ecology. However, the effects of human‐caused land‐use changes on biodiversity change at the landscape scale are not well understood. Combining the PREDICTS global biodiversity database with MODIS satellite‐based land cover from 2001 to ...
Shuyu Deng, Colin M. Beale, Chris D. Thomas   +2 more
wiley   +1 more source

Mesoscale Circulation and Coral Community Disturbance at Isolated Reefs

Global Change Biology Communications, EarlyView.
The Loop Current is a seasonally and interannually dynamic mesoscale oceanographic feature in the Gulf of Mexico that strongly influences connectivity and environmental conditions across the region. We investigated the influence of Loop Current variability on coral reef disturbances at isolated reefs in the northwest Gulf, including coral disease ...
Gaby E. Carpenter, Benjamin H. Farmer, Hannah E. Craft, Amy Apprill, Marilyn E. Brandt, Adrienne M. S. Correa, Laura D. Mydlarz, Daniel M. Holstein   +7 more
wiley   +1 more source

Bounding the gap between the McCormick relaxation and the convex hull for bilinear functions [PDF]

, 2016
Natashia Boland, Santanu S. Dey, Thomas Kalinowski, Marco Molinaro, Fabian Rigterink   +4 more
openalex   +1 more source