Results 21 to 30 of about 3,852 (253)

Corrosive Esophagitis and Gastritis Induced by Glutaraldehyde Ingestion [PDF]

open access: yesThe Korean Journal of Helicobacter and Upper Gastrointestinal Research, 2020
Corrosive esophagitis and gastritis are characterized by caustic damage due to ingestion of chemical agents. Caustic agents cause tissue destruction through liquefaction or coagulation reactions.
Donghwan Jun   +6 more
doaj   +1 more source

Caustics in a Simple SU(2) Lattice Gauge Theory Model

open access: yes, 1987
This paper describes the beginning of an attempt to study the weak coupling limit of lattice gauge theories, using the Hamiltonian formulation and the semiclassical approximation. The topics are caustics and the behavior of the ground state wave function
Bartels, Jochen, Wu, Tai Tsun
core   +2 more sources

On caustics associated with Rossby waves [PDF]

open access: yes, 1982
summary:Rossby wave equations characterize a class of wave phenomena occurring in geophysical fluid dynamics. One technique useful in the analysis of these waves is the geometrical optics, or multi-dimensional WKB technique.
Gorman, Arthur D.   +2 more
core   +1 more source

EUPHORBIUM AS A CAUSTIC. [PDF]

open access: yesThe Lancet, 1896
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openaire   +1 more source

Caustics of developable surfaces [PDF]

open access: yesFrontiers of Information Technology & Electronic Engineering, 2022
Abstract While considering a mirror and light rays coming either from a point source or from infinity, the reflected light rays may have an envelope, called a caustic curve. In this paper, we study developable surfaces as mirrors. These caustic surfaces, described in a closed form, are also developable surfaces of the same type as the
Miklós Hoffmann   +2 more
openaire   +2 more sources

Anomalous caustics and Veselago focusing in 8-Pmmn borophene p–n junctions with arbitrary junction directions

open access: yesNew Journal of Physics, 2019
Negative refraction usually demands complex structure engineering while it is very natural for massless Dirac fermions (MDFs) across the p–n junction (PNJ), this leads to Dirac electron optics.
Shu-Hui Zhang, Wen Yang
doaj   +1 more source

Dynamic crack propagation characteristics of media with bedding under an impact load

open access: yes工程科学学报, 2023
With the gradual development of mines, tunnels, and other underground constructions, theoretical research on the influence of internal defects in rock structure on rock dynamic fracture behavior and related engineering practices are of great importance ...
Yan-bing WANG   +4 more
doaj   +1 more source

Complex caustics of the elliptic billiard

open access: yes, 2020
International audienceThe article studies a generalization of the elliptic billiard to the complex domain. We show that the billiard orbits also have caustics, and that the number of such caustics is bigger than for the real case.
Fierobe, Corentin
core   +1 more source

Caustic ingestion in children: A 6-year retrospective study

open access: yesEmergency Care Journal, 2020
Some aspects of the management of caustic ingestion in children are still debated. We aimed to determine the predictive value of epidemiological and clinical features of caustic ingestion, and to define guidelines adherence. This is a retrospective study
Cristina Lovera   +4 more
doaj   +1 more source

Caustics Formation by a Spherical Reflector – Geometric and Wave Field Analysis with Applications in Room Acoustics and Radio Astronomy

open access: yesEngineering Transactions
Based on the principles of geometrical optics, an analytical description of caustics generated in a spherical mirror is presented. The formation of caustics in a wave field is studied using acoustic and electromagnetic waves as an example.
Andrzej Kulowski
doaj   +1 more source

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