Results 101 to 110 of about 3,580 (288)

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

Rock 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, Xueyi Shang, Linghao Liu, Yi Wang, Xibing Li   +4 more
doaj   +1 more source

Comparison of semi-automatic and deep learning-based automatic methods for liver segmentation in living liver transplant donors

Diagnostic and Interventional Radiology, 2020
PURPOSE:To compare the accuracy and repeatability of emerging machine learning based (i.e. deep) automatic segmentation algorithms with those of well-established semi-automatic (interactive) methods for determining liver volume in living liver transplant
A. Emre Kavur, Naciye Sinem Gezer, Mustafa Barış, Yusuf Şahin, Savaş Özkan, Bora Baydar, Ulaş Yüksel, Çağlar Kılıkçıer, Şahin Olut, Gözde Bozdağı Akar, Gözde Ünal, Oğuz Dicle, M. Alper Selver   +12 more
doaj   +1 more source

Improved fast marching methods with application in traveltime tomography

, 2022
Seismic wave speed and anisotropy provide essential constraints on the Earth’s internal velocity structure and deformation history. The propagation of the seismic wave can be modeled by a Hamilton system in the forward modeling.
Qi, Yingyu
core   +1 more source

Assessing the Impact of Promotions on Consumer Purchasing Behavior During Crises

Agribusiness, EarlyView.
ABSTRACT Understanding how households modify their food expenditure decisions during times of crisis is essential because consumer purchasing behavior frequently changes during these times. This study looks at these behavioral shifts during the COVID‐19 pandemic, concentrating on how price sensitivity and response to sales promotions changed over the ...
Wafa Mehaba, José María Gil
wiley   +1 more source

Control Theory and Fast Marching Methods for Brain Connectivity Mapping [PDF]

, 2006
We propose a novel, fast and robust technique for the computation of anatomical connectivity in the brain. Our approach exploits the information provided by Diffusion Tensor Magnetic Resonance Imaging (or DTI) and models the white matter by using ...
Prados, Emmanuel, Faugeras, Olivier, Lenglet, Christophe, Deriche, Rachid, Soatto, Stefano, Pons, Jean-Philippe, Wotawa, Nicolas   +6 more
core   +1 more source

An Augmented Fast Marching Method for Computing Skeletons and Centerlines.

, 2002
We present a simple and robust method for computing skeletons for arbitrary planar objects and centerlines for 3D objects. We augment the Fast Marching Method (FMM) widely used in level set applications by computing the paramterized boundary location every pixel came from during the boundary evolution.
Telea, Alexandru, Wijk, Jarke J. van
openaire   +3 more sources

Fast Marching Methods in path and motion planning: improvements and high-level applications [PDF]

, 2015
Mención Internacional en el título de doctorPath planning is defined as the process to establish the sequence of states a system must go through in order to reach a desired state. Additionally, motion planning (or trajectory planning) aims to compute the
Gómez González, Javier Victorio
core  

The Geography of Success: A Spatial Analysis of Export Intensity in the Italian Wine Industry

Agribusiness, EarlyView.
ABSTRACT This paper investigates the paradox of how Italy's fragmented, SME‐dominated wine industry achieves global export success. Moving beyond purely firm‐centric explanations, we test whether export intensity is spatially dependent, clustering geographically in regional ecosystems.
Nicolas Depetris Chauvin, Jonas Di Vita
wiley   +1 more source

Food Prices and Inflation Expectations in New Zealand

Agribusiness, EarlyView.
ABSTRACT Food prices are conspicuous, and spending on food constitutes a considerable share of household expenditure. In this study, we use partially identified Bayesian structural vector autoregression models to analyze the effects of food price shocks on core inflation and 1‐ and 5‐year inflation expectations in New Zealand.
Puneet Vatsa, Gabriel Pino, Alex Acheampong   +2 more
wiley   +1 more source

Mechanochemistry Meets Catalysis: Metal Complexes for Greener Organic Transformations

Angewandte Chemie, EarlyView.
Mechanochemistry is redefining metal catalysis by controlling catalyst formulation, speciation, and deployment. This Review shows how milling, LAG, RAM, and TSE enable rapid metal‐complex assembly, distinctive catalytic manifolds, and scalable synthesis beyond solution chemistry.
Sourav Behera, Francesco Basoccu, Andrea Porcheddu   +2 more
wiley   +2 more sources