Results 71 to 80 of about 4,163 (288)
Fully Isotropic Fast Marching Methods on Cartesian Grids [PDF]
, 2010 The existing Fast Marching methods which are used to solve the Eikonal equation use a locally continuous model to estimate the accumulated cost, but a discontinuous (discretized) model for the traveling cost around each grid point. Because the accumulated cost and the traveling (local) cost are treated differently, the estimate of the accumulated cost ...
Vikram V. Appia, Anthony J. Yezzi
openaire +2 more sources
Consensus Formation and Change are Enhanced by Neutrality
Advanced Science, EarlyView.Neutral agents are shown to enhance both the formation and overturning of consensus in collective decision‐making. A general mathematical model and experiments with locusts and humans reveal that neutrality enables robust consensus via simple interactions and accelerates consensus change by reducing effective population size.
Andrei Sontag +3 more
wiley +1 more source
Advanced Science, EarlyView.Nanocellulose, derived from microcrystalline cellulose (MCC) through sulfuric acid hydrolysis or mechanical grinding to produce CNC or CNF, was tested in a rat ICP model. Particularly, CNF improved gut microbiota composition, reduced secondary bile acid metabolism, and restored bile acid homeostasis through modulation of the gut–liver axis.
Muhua Yu +18 more
wiley +1 more source
Dizhen xuebao快速准确地计算走时和射线路径是实现地震成像和反演的关键。在各向异性介质中，地震波的传播速度会随传播方向的变化而变化，这使得求解各向异性条件程函方程时，相速度的精确估计和计算变得非常复杂和困难，进而影响各向异性介质中走时和射线路径的计算精度和效率。为此，提出了一种基于相速度预测的射线追踪方法，该方法根据波的传播规律以及斯奈尔方程，推导出一种相速度预测公式，解决了各向异性条件程函方程中相速度求解困难的问题，实现了快速稳定的射线追踪。数值算例表明，本文所提出的改进算法明显提高了走时计算精度 ...
Zhiyu Zhang, Xue Dong, Yiqun Zhao
doaj +1 more source
Microbial Odorant Detection Guides Drosophila Parasitoids Seeking Hosts in Fermenting Fruits
Advanced Science, EarlyView.Yeast microbes in fermenting fruits attract both host flies and their parasitoid wasps. Female Leptopilina boulardi detect yeast‐emitted ethyl esters via two olfactory receptors, LbouOR167 and LbouOR136. A conserved residue, Leu159, is critical for binding these compounds, enabling female wasps to locate host‐rich habitats.
Yueqi Lu +11 more
wiley +1 more source
Fast Marching farthest point sampling
, 2003 We introduce the Fast Marching farthest point sampling (FastFPS) approach for the progressive sampling of planar domains and curved manifolds in triangulated, point cloud or implicit form.
Neil A. Dodgson, Carsten Moenning
core +2 more sources
A numerical well testing method for fractured-vuggy reservoirs based on fast marching method
Youqi dizhi yu caishouluIn fractured-vuggy reservoirs， triple media consisting of fractures， vugs， or pores significantly affects oil and gas flow. However， traditional well testing interpretation methods have been proven to be ineffective in accurately describing the flow ...
DU Yawen +3 more
doaj +1 more source
The Spatiotemporal Genetic Architecture of Seed Vigor in Upland Cotton
Advanced Science, EarlyView.Leveraging the semi‐automated SeedRanger platform, we profiled the germination kinetics of 356 cotton accessions at a 30‐min interval. This high‐throughput phenomic approach delineated a temporal genetic network comprising 541 stage‐specific loci. Crucially, functional validation identified FLA2 as a pivotal, auxin‐modulated regulator that orchestrates
Luyao Wang +32 more
wiley +1 more source
A new numerical well testing approach: Application to characterization of complex fault structures
Petroleum, 2019 Fluid flow in hydrocarbon reservoirs and consequently optimum scenario for hydrocarbon production, is heavily influenced by reservoir heterogeneities. Faults are one of the most common types of heterogeneity found in reservoirs.
Behzad Pouladi +3 more
doaj +1 more source