Results 31 to 40 of about 96,132 (296)
Application of the Fenton Process in the Petroleum Refinery Spent Caustic Wastewater Treatment
Reaktor, 2020 Spent caustic wastewater is produced from the scrubbing process using a caustic solution to absorb contaminants in the oil stream (hydrocarbon). Indonesia’s Petroleum Oil Refinery produces spent caustic wastewater from LPG and kerosene processing unit ...
Riang Anggraini Rahmanisa +1 more
doaj +1 more source
Caustic spot light for rendering caustics [PDF]
The Visual Computer, 2008 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
Optical catastrophes of the swallowtail and butterfly beams
New Journal of Physics, 2017 We experimentally realize higher-order catastrophic structures in light fields presenting solutions of the paraxial diffraction catastrophe integral. They are determined by potential functions whose singular mapping manifests as caustic hypersurfaces in ...
Alessandro Zannotti +3 more
doaj +1 more source
Minimal model for tidal bore revisited
New Journal of Physics, 2019 This develops a recent analysis of gentle undular tidal bores (2018 New J. Phys. 20 053066) and corrects an error. The simplest linear-wave superposition, of monochromatic waves propagating according to the shallow-water dispersion relation, leads to a ...
M V Berry
doaj +1 more source
Testing universal dark-matter caustic rings with galactic rotation curves
Physics Letters B, 2023 Infall of cold dark matter on a galaxy may result in caustic rings where the particle density is enhanced. They may be searched for as features in the galactic rotation curves.
Daniil Davydov, Sergey Troitsky
doaj +1 more source
Universality in the distribution of caustics in the expanding Universe
, 2003 We numerically investigate the long--time evolution of density perturbations after the first appearance of caustics in an expanding cosmological model with one--dimensional `single--wave' initial conditions.
Arnol’d V. I. +10 more
core +1 more source
A Complete Set of Solutions For Caustic-Crossing Binary Microlensing Events [PDF]
, 1999 We present a method to analyze binary-lens microlensing light curves with one well-sampled fold caustic crossing. In general, the surface of chi^2 shows extremely complicated behavior over the 9-parameter space that characterizes binary lenses.
A. Gould +31 more
core +3 more sources
Pediatric Blood &Cancer, EarlyView.ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen +23 more
wiley +1 more source
Caustic ingestion in children: A 6-year retrospective study
Emergency 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
Equilibria of point charges on convex curves
, 2015 We study the equilibrium positions of three points on a convex curve under influence of the Coulomb potential. We identify these positions as orthotripods, three points on the curve having concurrent normals. This relates the equilibrium positions to the
Khimshiashvili, Giorgi +2 more
core +1 more source