Weiwu Pang

Weiwu Pang
University of Southern California | USC · Department of Computer Science

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12
Publications
1,076
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135
Citations

Publications

Publications (12)
Conference Paper
Full-text available
Recent work has considered two qualitatively different approaches to overcoming line-of-sight limitations of 3D sensors used for perception: cooperative perception, and infrastructure-augmented perception. In this paper, motivated by increasing deployments of infrastructure LiDARs, we explore a third approach – cooperative infrastructure perception...
Preprint
Full-text available
Autonomous driving will become pervasive in the coming decades. iDriving improves the safety of autonomous driving at intersections and increases efficiency by improving traffic throughput at intersections. In iDriving, roadside infrastructure remotely drives an autonomous vehicle at an intersection by offloading perception and planning from the ve...
Article
Full-text available
Advancements in x-ray free electron lasers on producing ultrashort, ultrabright, and coherent x-ray pulses enable single-shot imaging of fragile nanostructures, such as superfluid helium droplets. This imaging technique gives unique access to the sizes and shapes of individual droplets. In the past, such droplet characteristics have only been indir...
Article
Full-text available
Quantum fluid droplets made of helium-3 (3He) or helium-4 (4He) isotopes have long been considered as ideal cryogenic nanolabs, enabling unique ultracold chemistry and spectroscopy applications. The droplets were believed to provide a homogeneous environment in which dopant atoms and molecules could move and react almost as in free space but at tem...
Article
Previous single-pulse extreme ultraviolet and x-ray coherent diffraction studies revealed that superfluid He4 droplets obtained in a free jet expansion acquire sizable angular momentum, resulting in significant centrifugal distortion. Similar experiments with normal fluid He3 droplets may help elucidate the origin of the large degree of rotational...
Article
The angular momentum of rotating superfluid droplets originates from quantized vortices and capillary waves, the interplay between which remains to be uncovered. Here, the rotation of isolated submicrometer superfluid He4 droplets is studied by ultrafast x-ray diffraction using a free electron laser. The diffraction patterns provide simultaneous ac...
Preprint
Previous single-pulse extreme ultraviolet and X-ray coherent diffraction studies revealed that superfluid 4He droplets obtained in free jet expansion acquire sizable angular momentum, resulting in significant centrifugal distortion. Similar experiments with normal fluid 3He droplets may help elucidating the origin of the of the large degree of rota...
Preprint
The angular momentum of rotating superfluid droplets originates from quantized vortices and capillary waves, the interplay between which remains to be uncovered. Here, the rotation of isolated sub-micrometer superfluid 4He droplets is studied by ultrafast x-ray diffraction using a free electron laser. The diffraction patterns provide simultaneous a...

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