Results 51 to 60 of about 44,716 (282)

Efficient LiDAR Point Cloud Geometry Compression Through Neighborhood Point Attention

, 2022
Although convolutional representation of multiscale sparse tensor demonstrated its superior efficiency to accurately model the occupancy probability for the compression of geometry component of dense object point clouds, its capacity for representing sparse LiDAR point cloud geometry (PCG) was largely limited.
Xue, Ruixiang, Wang, Jianqiang, Ma, Zhan
openaire   +2 more sources

Laser cooling with a single laser beam and a planar diffractor

, 2010
A planar triplet of diffraction gratings is used to transform a single laser beam into a four-beam tetrahedral magneto-optical trap. This `flat' pyramid diffractor geometry is ideal for future microfabrication.
Arnold, Aidan S., Griffin, Paul F., Riis, Erling, Vangeleyn, Matthieu   +3 more
core   +3 more sources

Distortion of Magnetic Fields in a Starless Core II: 3D Magnetic Field Structure of FeSt 1-457 [PDF]

, 2017
Three dimensional (3D) magnetic field information on molecular clouds and cores is important for revealing their kinematical stability (magnetic support) against gravity which is fundamental for studying the initial conditions of star formation.
Kandori, Ryo, Kusakabe, Nobuhiko, Kwon, Jungmi, Nagata, Tetsuya, Nagayama, Takahiro, Nakajima, Yasushi, Tamura, Motohide, Tatematsu, Ken'ichi, Tomisaka, Kohji   +8 more
core   +2 more sources

Engineering Strategies for Stable and Long‐Life Alkaline Zinc‐Based Flow Batteries

Advanced Functional Materials, EarlyView.
Alkaline zinc‐based flow batteries face persistent challenges from unstable zinc deposition, including dendrite growth, passivation, corrosion, and hydrogen evolution, which severely limit cycling stability. Current research addresses these issues through coordinated electrode structuring, electrolyte regulation, and membrane design to control zinc ...
Yuran Bai, Xiaoyu Huo, Xin Long, Enkang Fu, Xusong Gong, Lei Wei, Liang An   +6 more
wiley   +1 more source

PCQD‐AR: Subjective quality assessment of compressed point clouds with head‐mounted augmented reality

Electronics Letters
This letter fully studies the coloured point cloud quality assessment in augmented reality (AR) environment through subjective test. Firstly, a point cloud dataset, named point cloud quality dataset‐AR, including ten reference point clouds and their 90 ...
Chunling Fan, Yun Zhang, Linwei Zhu, Xinju Wu   +3 more
doaj   +1 more source

On compressive radial tidal forces

, 2007
Radial tidal forces can be compressive instead of disruptive, a possibility that is frequently overlooked in high level physics courses. For example, radial tidal compression can emerge in extended stellar systems containing a smaller stellar cluster ...
Binney J., Bondi H., Caimmi R., Combes F., Dermott S. F., Marco Masi, Misner C. W.   +6 more
core   +1 more source

Elucidating the Role of Surface Ligands on the Oxidative Etching of Au Bipyramids During Photothermia Using Liquid Cell Transmission Electron Microscopy

Advanced Functional Materials, EarlyView.
Gold bipyramids can act as efficient plasmonic nanoheaters, but they often reshape during laser heating. This study shows that oxygen nanobubbles drive oxidative etching and that surface ligands control stability. CTAB‐ and citrate‐coated particles blunt and lose optical performance, whereas polystyrene sulfonate preserves shape and heating by ...
Irene López‐Sicilia, Valentina Girelli Consolaro, Sophie Marbach, Nancy Rahbany, Grégoire Petit, Ovidiu Ersen, Juan J. Giner‐Casares, Ali Abou‐Hassan   +7 more
wiley   +1 more source

Magnetic fields in multiple bright-rimmed clouds in different directions of H$~$II region IC1396 - II

, 2018
Bright-rimmed clouds form on the edges of H II regions affected by the high energy radiation from a central ionizing source. The UV radiation from the ionizing source results in compression and ionization causing either cloud disruption or further star ...
Kim, Kee-Tae, Lee, Chang Won, Maheswar, G., Neha, S., Soam, Archana   +4 more
core   +1 more source

Multi‐Scale Interface Engineering of MXenes for Multifunctional Sensory Systems

Advanced Functional Materials, EarlyView.
MXenes, as two‐dimensional transition metal carbides and nitrides, demonstrate remarkable capabilities for multifunctional sensing applications. This review systematically examines multi‐scale interface engineering approaches that enhance sensing performance, enable diverse detection functionalities, and improve system‐level compatibility in MXene ...
Jiaying Liao, Sin‐Yi Pang, Jianhua Hao
wiley   +1 more source

Texture-Guided Graph Transform Optimization for Point Cloud Attribute Compression

Applied Sciences
There is a pressing need across various applications for efficiently compressing point clouds. While the Moving Picture Experts Group introduced the geometry-based point cloud compression (G-PCC) standard, its attribute compression scheme falls short of ...
Yiting Shao, Fei Song, Wei Gao, Shan Liu, Ge Li   +4 more
doaj   +1 more source