Results 101 to 110 of about 79,971 (321)

Accurate Anisotropic Fast Marching for Diffusion-Based Geodesic Tractography

International Journal of Biomedical Imaging, 2008
Using geodesics for inferring white matter fibre tracts from diffusion-weighted MR data is an attractive method for at least two reasons: (i) the method optimises a global criterion, and hence is less sensitive to local perturbations such as noise or ...
S. Jbabdi, P. Bellec, R. Toro, J. Daunizeau, M. Pélégrini-Issac, H. Benali   +5 more
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, Lan Pang, Wenqi Shi, Ting Feng, Zhi Dong, Yifeng Sheng, Sicong Zhou, Longtao Yu, Hao Guo, Ying Wang, Jiani Chen, Jianhua Huang   +11 more
wiley   +1 more source

Region Information-Based ROI Extraction by Multi-Initial Fast Marching Algorithm

EURASIP Journal on Advances in Signal Processing, 2004
Region of interest (ROI) plays an important role in medical image analysis. In this paper, a new approach to ROI extraction based on the curve evolution is proposed.
Youmin Guo, Min Ye, Hongmei Zhang, Zhengzhong Bian, Yalin Miao   +4 more
doaj   +1 more source

General Path Planning Methodology for Leader-Follower Robot Formations

International Journal of Advanced Robotic Systems, 2013
This paper describes a robust algorithm for mobile robot formations based on the Voronoi Fast Marching path planning method. This is based on the propagation of a wave throughout the model of the environment, the wave expanding faster as the wave's ...
Santiago Garrido, Luis Moreno, Javier V. Gómez, Pedro U. Lima   +3 more
doaj   +1 more source

Free boundary problems describing two-dimensional pulse recycling and motion in semiconductors

, 2003
An asymptotic analysis of the Gunn effect in two-dimensional samples of bulk n-GaAs with circular contacts is presented. A moving pulse far from contacts is approximated by a moving free boundary separating regions where the electric potential solves a ...
A.F. Volkov, B. Willing, D.Adalsteinsson, D.L. Chopp, F. J. Higuera, F.J. Higuera, H. Kroemer, J.A. Sethian, J.A. Sethian, J.B. Gunn, L. L. Bonilla, L.L. Bonilla, L.L. Bonilla, L.L. Bonilla, R. Escobedo   +14 more
core   +1 more source

Assessing Mesoscale Heterogeneities in Hard Carbon Electrodes Through Deep Learning‐Assisted FIB‐SEM Characterization, Manufacturing and Electrochemical Modeling

Advanced Energy Materials, EarlyView.
A combination of discrete and finite element method models for the current collector deformation and electrochemical performance analysis, respectively. The models are calibrated and validated with electrochemical and imaging data of hard carbon electrodes. These electrodes were manufactured with different parameters (slurry solid contents of 35 and 40
Soorya Saravanan, Imelda Cardenas‐Sierra, Pei Sun, Hari Raj, Daniele Duranti, Mahnoor Nafees, Edoardo Rossi, Marco Sebastiani, Paul Vigneaux, Martin Petit, Maxime Moreaud, Francisco Fernandez, Alejandro A. Franco   +12 more
wiley   +1 more source

Microseismic P-Wave Travel Time Computation and 3D Localization Based on a 3D High-Order Fast Marching Method. [PDF]

Sensors (Basel), 2021
Li Y, Wang J, Wang Z, Sui Q, Xiong Z.
europepmc   +1 more source

Determining candidate polyp morphology from CT colonography using a level-set method [PDF]

, 2005
In this paper we propose a level-set segmentation for polyp candidates in Computer Tomography Colongraphy (CTC). Correct classification of the candidate polyps into polyp and non-polyp is, in most cases, evaluated using shape features.
Chowdhury, Tarik A., Ghita, Ovidiu, Lynch, Michael, Whelan, Paul F.   +3 more
core  

Competition Policy and Agribusiness in the Biden Administration

Applied Economic Perspectives and Policy, EarlyView.
ABSTRACT The Biden Administration pursued a set of ambitious competition policy initiatives in agriculture and agribusiness, primarily aimed at livestock and poultry supply chains, farm inputs, and food retailing. The initiatives included expanded antitrust enforcement; new US Department of Agriculture (USDA) contract regulations requiring poultry ...
James M. MacDonald
wiley   +1 more source

A Fast Level Set Method for Synthetic Aperture Radar Ocean Image Segmentation

Sensors, 2009
Segmentation of high noise imagery like Synthetic Aperture Radar (SAR) images is still one of the most challenging tasks in image processing. While level set, a novel approach based on the analysis of the motion of an interface, can be used to address ...
Hongga Li, Bo Huang, Xiaoxia Huang
doaj   +1 more source