Results 1 to 10 of about 19,971 (265)
Dynamic caustics by ultrasonically modulated liquid surface [PDF]
This paper presents a method for generating dynamic caustic patterns by utilising dual-optimised holographic fields with Phased Array Transducer (PAT).
Koki Nagakura +3 more
doaj +2 more sources
Corrosive Esophageal Injury due to a Commercial Vinegar Beverage in an Adolescent [PDF]
Although gastroesophageal damage is commonly induced by accidental drinking of a strong acid or alkali, damage due to the consumption of a vinegar beverage is not well known. We report a case of corrosive esophageal ulcer found in an adolescent consuming
Jiyeon Chang +3 more
doaj +1 more source
Caustic spot light for rendering caustics [PDF]
It is difficult to render caustic patterns at interactive frame rates. This paper introduces new rendering techniques that relax current constraints, allowing scenes with moving, non-rigid scene objects, rigid caustic objects, and rotating directional light sources to be rendered in real-time with GPU hardware acceleration.
Liu, X., Dong, Z., Bao, H., Peng, Q.
openaire +2 more sources
Self-accelerating beams have the unusual ability to remain diffraction-free while undergo the transverse shift during the free-space propagation. We theoretically identify that the transverse optical field distribution of 2D self-accelerating beam is ...
Lei Zhu +5 more
doaj +1 more source
Seafloor geoacoustic properties are important in determining sound propagation in the marine environment, which broadly affects sub-sea activities. However, geoacoustic investigation of the deep seafloor, which is required by the recent expansion of deep-
Ernst Uzhansky +6 more
doaj +1 more source
Introduction:Accidental ingestion of cleaning substances poses a risk to children all over the world and in our country. In this study, we aimed to investigate the causes of this condition and the clinical problems caused by such serious consequences ...
Gamze Gökalp +3 more
doaj +1 more source
Centre Symmetry Sets of Families of Plane Curves
We study centre symmetry sets and equidistants for a I-parameter family of plane curves where, for a special member of the family, there exist two inflexions with parallel tangents.
Giblin Peter, Reeve Graham
doaj +1 more source
Differential optics for illumination design in the presence of caustics [PDF]
Alternatively to using time-consuming Monte-Carlo simulations the irradiation at a target plane can also be calculated by differential optics methods. In the case of caustics, these methods yield to infinite irradiance and its results are not directly ...
Ott P., Yu L.
doaj +1 more source
Abstract: The late infall of cold dark matter onto an isolated galaxy such as our own produces flows with definite velocity vectors at any physical point in the galactic halo. It also produces caustics which are places where the dark matter density is very large. The outer caustics are topological spheres whereas the inner caustics are rings. The self‐
Sikivie, P., Kinney, W.
openaire +3 more sources
Caustics of wave fronts reflected by a surface
One can often see caustic by reflection in nature but it is rather hard to understand the way of how caustic arise and which geometric properties of a mirror surface define geometry of the caustic.
Oleksandr Fursenko, Alexander Yampolsky
doaj +1 more source

