Results 31 to 40 of about 460,480 (261)

A Low-Cost, Repeatable Method for 3D Particle Analysis with SfM Photogrammetry

open access: yesGeosciences, 2023
The characterisation of particle shape is an important analysis in the field of sedimentary geology. At finer scales, it is key for understanding sediment transport while at coarser scales, such as boulders, it is vital for coastal protection.
Mohit Tunwal, Aaron Lim
doaj   +1 more source

fMRI Evidence for Multi-level Adaptation of Stereoscopic Curvature Aftereffect

open access: yesTaiyuan Ligong Daxue xuebao
Purposes In this study, a functional resonance imaging adaptation (fMRIa) experiment was conducted to examine the multi-level adaptation mechanism in 16 ROIs of the human brain cortex.
YAN Pengfei   +3 more
doaj   +1 more source

Single-Shot 3D Multi-Person Shape Reconstruction from a Single RGB Image

open access: yesEntropy, 2020
Although the performance of the 3D human shape reconstruction method has improved considerably in recent years, most methods focus on a single person, reconstruct a root-relative 3D shape, and rely on ground-truth information about the absolute depth to ...
Seong Hyun Kim, Ju Yong Chang
doaj   +1 more source

The extraction of depth structure from shading and texture in the macaque brain. [PDF]

open access: yesPLoS ONE, 2009
We used contrast-agent enhanced functional magnetic resonance imaging (fMRI) in the alert monkey to map the cortical regions involved in the extraction of 3D shape from the monocular static cues, texture and shading.
Koen Nelissen   +5 more
doaj   +1 more source

Shape dithering for 3D printing

open access: yesACM Transactions on Graphics, 2022
We present an efficient, purely geometric, algorithmic, and parameter free approach to improve surface quality and accuracy in voxel-controlled 3D printing by counteracting quantization artifacts. Such artifacts arise due to the discrete voxel sampling of the continuous shape used to control the 3D printer, and are characterized by low-frequency ...
Mostafa Morsy Abdelkader Morsy   +2 more
openaire   +1 more source

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

open access: yesFEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi   +5 more
wiley   +1 more source

Residual deformation analysis of laser powder bed fusion-fabricated lattice structures

open access: yesVirtual and Physical Prototyping
Lattice structures are crucial for weight reduction, and laser powder bed fusion (LPBF) is an efficient fabrication method. However, there's a notable research gap in understanding the residual deformation of LPBF-fabricated lattice structures.
Yilong Wang   +5 more
doaj   +1 more source

Structural Descriptors for 3D Shapes

open access: yes, 2006
Assessing the similarity among 3D shapes is a very complex and challenging research topic. While human perception have been widely studied and produced theories that received a large consensus, the computational aspects of 3D shape retrieval and matching have been only recently addressed.
Spagnuolo M   +3 more
openaire   +6 more sources

Organoids in pediatric cancer research

open access: yesFEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

open access: yesFEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe   +3 more
wiley   +1 more source

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