Results 121 to 130 of about 79,971 (321)

High-precision Joint 2D Traveltime Calculation for Seismic Processing

open access: yesEarth Sciences Research Journal, 2018
Fast Marching Method (FMM) boasts high calculation efficiency and strong adaptability and stability while being applied to seismic traveltime. However, when it is applied to the largescale model, the calculation precision of FMM is insufficient.
Hui Sun   +4 more
doaj   +1 more source

Optimization of Arrival and Departure Routes in Terminal Maneuvering Area [PDF]

open access: yes, 2014
International audienceAirport is both the starting and ending point of air traffic. The sharp increase in air traffic flow causes directly traffic congestion in Terminal Maneuvering Area (TMA) which affects the normal operation of the flights. Optimizing
Cafieri, Sonia   +3 more
core   +1 more source

Optimal Path Planning and the Fast Marching Method [PDF]

open access: yes, 2002
The problem of determining an optimal path for an object moving through some obstacle space presents several nontrivial subproblems. The foremost being the computational complexity that is involved and how to best deal with the associated large data volume. For example, a non-symmetric object moving in three dimensions possesses six degrees of freedom.
openaire   +2 more sources

Integrating Surface Normal Vectors Using Fast Marching Method [PDF]

open access: yes, 2006
Integration of surface normal vectors is a vital component in many shape reconstruction algorithms that require integrating surface normals to produce their final outputs, the depth values. In this paper, we introduce a fast and efficient method for computing the depth values from surface normal vectors.
Jeffrey Ho   +3 more
openaire   +1 more source

Return and Volatility Spillovers Among Major Cotton Markets

open access: yesAgribusiness, EarlyView.
ABSTRACT This study explores return and volatility transmission among major cotton markets. Several events have disrupted cotton supply and demand in recent years, leading to heightened price volatility and significant shifts in market interconnections.
Susmitha Kalli   +3 more
wiley   +1 more source

Fast marching method-based bent-ray tracing for three-dimensional velocity imaging in mines

open access: yesRock Mechanics Bulletin
Three-dimensional (3D) seismic velocity imaging is crucial for understanding rock mass stress and structures in mining. Conventional straight-ray tomography suffers from ray-path mismatches with true wavefield propagation in complex media, leading to ...
Jie Yang   +4 more
doaj   +1 more source

Pseudo transient continuation and time marching methods for Monge-Ampere type equations [PDF]

open access: yes, 2014
We present two numerical methods for the fully nonlinear elliptic Monge-Ampere equation. The first is a pseudo transient continuation method and the second is a pure pseudo time marching method.
Awanou, Gerard
core  

Comparison of the Parallel Fast Marching Method, the Fast Iterative Method, and the Parallel Semi-ordered Fast Iterative Method

open access: yesProcedia Computer Science, 2016
AbstractSolving the eikonal equation allows to compute a monotone front propagation of anisotropic nature and is thus a widely applied technique in different areas of science and engineering. Various methods are available out of which only a subset is suitable for shared-memory parallelization, which is the key focus of this analysis. We evaluate three
Weinbub, Josef, Hössinger, Andreas
openaire   +1 more source

Animal‐Based Brands Taking the Plant‐Based Opportunity: A Tasting Experiment Exploring Consumer Acceptance of Plant‐Based Brand Extensions

open access: yesAgribusiness, EarlyView.
ABSTRACT This study investigates how consumer taste and brand equity perceptions shape the acceptance of plant‐based milk products. Using a blind/informed tasting experiment, we evaluated consumers' willingness to buy (WTB) and taste perception of a plant‐based milk alternative produced by a traditional dairy brand, compared with competing plant‐based ...
Federico Parmiggiani   +6 more
wiley   +1 more source

Local Competition-Based Superpixel Segmentation Algorithm in Remote Sensing

open access: yesSensors, 2017
Remote sensing technologies have been widely applied in urban environments’ monitoring, synthesis and modeling. Incorporating spatial information in perceptually coherent regions, superpixel-based approaches can effectively eliminate the “salt and pepper”
Jiayin Liu   +3 more
doaj   +1 more source

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