Results 81 to 90 of about 537,671 (190)

Aerodynamic optimization of multi-stage axial turbine based on pre-screening strategy and directly manipulated free-form deformation

Case Studies in Thermal Engineering
To address the challenges of multiple design variables, long evaluation times, and poor global search capability of traditional surrogate-assisted algorithms that rely on the complete substitution of accurate function evaluations in the turbine ...
Yixuan Guo, Jiang Chen, Yi Liu, Hang Xiang, Mingsheng Chen   +4 more
doaj   +1 more source

Volumetric cine magnetic resonance imaging (VC-MRI) using motion modeling, free-form deformation and multi-slice undersampled 2D cine MRI reconstructed with spatio-temporal low-rank decomposition. [PDF]

Quant Imaging Med Surg, 2020
Harris W, Yin FF, Cai J, Ren L.
europepmc   +1 more source

Optimising Multimodal Image Registration Techniques: A Comprehensive Study of Non-Rigid and Affine Methods for PET/CT Integration

Diagnostics
Background/Objective: Multimodal image registration plays a critical role in modern medical imaging, enabling the integration of complementary modalities such as positron emission tomography (PET) and computed tomography (CT).
Babar Ali, Mansour M. Alqahtani, Essam M. Alkhybari, Ali H. D. Alshehri, Mohammad Sayed, Tamoor Ali   +5 more
doaj   +1 more source

Effect of hydrogen on deformation structure and properties of CMSX-2 nickel-base single-crystal superalloy [PDF]

Material used in this study was a heat of the alloy CMSX-2. This nickel-based superalloy was provided in the form of oriented single crystals, solutionized for 3 hrs at 1315 C.
Bernstein, I. M., Dollar, M., Domnanovich, A., Prinz, F., Walston, S.   +4 more
core   +1 more source

Experiment on Magnetic Compaction to Reduce Bugholes in Free-Form Concrete Panels

Buildings
Free-form concrete panel (FCP) molds require precise manufacturing because each mold demands a unique shape. Therefore, automation technology for producing these molds is being developed.
Jongyoung Youn, Kyeongtae Jeong, Kyeongrok Ryu, Gwanghee Kim, Donghoon Lee   +4 more
doaj   +1 more source

The Free Form Deformation of Phytoplankton Models [PDF]

, 2002
We construct the 3D models of phytoplankton. In presented article we solve the problem about deformation of the created models: How to deform the model so that its shape should conform to the shape of the natural microorganism? We use the Free Form Deformation (FFD) for the solving of this problem.
openaire   +1 more source

The In-Plane Deformation and Free Vibration Analysis of a Rotating Ring Resonator of a Gyroscope with Evenly Distributed Mass Imperfections

Sensors
A rotating imperfect ring resonator of the gyroscope is modeled by a rotating thin ring with evenly distributed point masses. The free response of the rotating ring structure at constant speed is investigated, including the steady elastic deformation and
Dongsheng Zhang, Shuming Li
doaj   +1 more source

Estimating 4D-CBCT from prior information and extremely limited angle projections using structural PCA and weighted free-form deformation for lung radiotherapy. [PDF]

Med Phys, 2017
Harris W, Zhang Y, Yin FF, Ren L.
europepmc   +1 more source

Free-form solid modeling using deformations

, 1989
Ankara : The Department of Computer Engineering and Information Sciences and the Institute of Engineering and Science of Bilkent Univ. , 1989. Thesis (Master's) -- Bilkent University, 1989. Includes bibliographical references leaves 46-48. One of the most important problems of available solid modeling systems is that the range of shapes generated is ...
openaire   +1 more source

Automated shape and thickness optimization for non-matching isogeometric shells using free-form deformation. [PDF]

Eng Comput
Zhao H, Kamensky D, Hwang JT, Chen JS.
europepmc   +1 more source