Results 1 to 10 of about 617 (99)

Evaluation of parameters extracted from tissue residue functions in dynamic susceptibility contrast MRI: Healthy volunteers examined during normal breathing and spontaneous hyperventilation [PDF]

open access: yesHeliyon
Dynamic susceptibility contrast magnetic resonance imaging (DSC-MRI) is the most common MRI method in clinical environments for assessment of perfusion-related parameters.
Ronnie Wirestam   +2 more
doaj   +2 more sources

A Novel Vectorized Curved Road Representation Based Aerial Guided Unmanned Vehicle Trajectory Planning [PDF]

open access: yesSensors, 2023
Unmanned vehicles frequently encounter the challenge of navigating through complex mountainous terrains, which are characterized by numerous unknown continuous curves.
Sujie Zhang   +4 more
doaj   +2 more sources

YOLOv5-POS: research on cabbage pose prediction method based on multi-task perception technology [PDF]

open access: yesFrontiers in Plant Science
IntroductionAccurate and rapid identification of cabbage posture is crucial for minimizing damage to cabbage heads during mechanical harvesting. However, due to the structural complexity of cabbages, current methods encounter challenges in detecting and ...
Xiaojun Shen   +9 more
doaj   +2 more sources

T-Splines for Isogeometric Analysis of the Large Deformation of Elastoplastic Kirchhoff–Love Shells

open access: yesApplied Sciences, 2023
In this paper, we develop a T-spline-based isogeometric method for the large deformation of Kirchhoff–Love shells considering highly nonlinear elastoplastic materials.
Mayi Guo   +5 more
doaj   +1 more source

Hydro-Mechanical Coupling of Cement-Based Slurry Grouting in Saturated Geomaterials

open access: yesMathematics, 2023
A mathematical model is proposed to simulate the fully hydro-mechanical coupling of two-phase cement-based slurry migration in saturated deformable geomaterials from microscopic to macroscopic scale.
Haitao Wang, Lei Kou, Hongkang Zhu
doaj   +1 more source

Craniofacial reconstruction using rational cubic ball curves. [PDF]

open access: yesPLoS ONE, 2015
This paper proposes the reconstruction of craniofacial fracture using rational cubic Ball curve. The idea of choosing Ball curve is based on its robustness of computing efficiency over Bezier curve.
Abdul Majeed   +3 more
doaj   +1 more source

An Isogeometric Bézier Finite Element Method for Vibration Optimization of Functionally Graded Plate with Local Refinement

open access: yesCrystals, 2022
An effective free vibration optimization procedure in combination with the isogeometric approach (IGA), particle swarm optimization (PSO) and an integrated global and local parameterization is presented.
Xing Wei, Dongdong Liu, Shuohui Yin
doaj   +1 more source

Research on emitter individual identification technology based on Automatic Dependent Surveillance–Broadcast signal

open access: yesInternational Journal of Distributed Sensor Networks, 2021
Aiming at the shortcomings of the research on individual identification technology of emitters, which is primarily based on theoretical simulation and lack of verification equipment to conduct external field measurements, an emitter individual ...
Shiwen Chen   +3 more
doaj   +1 more source

Bézier base extended isogeometric numerical method for thermo elastic-plastic analysis of crack propagation in cracked plate under welding residual stress and thermal load

open access: yesMathematical Modelling and Analysis, 2022
A new procedure in the field of Bézier base extended isogeometric method (XIGA) has been introduced to analyze the effect of welding residual stress and thermal load on crack propagation rate and fatigue life.
Mohammad M. Shoheib   +3 more
doaj   +1 more source

Developing an Approach to Redesign Freeform Surfaces Using B-Spline Technique [PDF]

open access: yesEngineering and Technology Journal, 2018
In product design process trends currently tend to use sculpture surface (freeform surface) that modeling by using (NURBS, B-spline, Bezier) technique to suit aesthetic, functional and manufacturability requirements.
Amjad Adulghafour, Ahmed Hassan
doaj   +1 more source

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