Results 31 to 40 of about 122,064 (340)

Identification of galaxy cluster substructures with the Caustic method [PDF]

open access: yes, 2015
We investigate the power of the caustic technique for identifying substructures of galaxy clusters from optical redshift data alone. The caustic technique is designed to estimate the mass profile of galaxy clusters to radii well beyond the virial radius,
Baldi, Marco   +3 more
core   +2 more sources

Dark matter caustics [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2009
Caustics are a generic feature of the nonlinear growth of structure in the dark matter distribution. If the dark matter were absolutely cold, its mass density would diverge at caustics, and the integrated annihilation probability would also diverge for individual particles participating in them.
White, S., Vogelsberger, M.
openaire   +3 more sources

The caustic ring singularity [PDF]

open access: yes, 1999
I investigate the caustics produced by the fall of collisionless dark matter in and out of a galaxy in the limit of negligible velocity dispersion. The outer caustics are spherical shells enveloping the galaxy. The inner caustics are rings.
A. A. Klypin   +18 more
core   +2 more sources

On cusps of caustics by reflection in two dimensional projective Finsler metrics [PDF]

open access: yesTheoretical and Applied Mechanics
Given a projective Finsler metric in a convex domain in the projective plane, that is, a metric in which geodesics are straight lines, consider the respective Finsler billiard system.
Tabachnikov Serge
doaj   +1 more source

Study of kerosene caustic wash process for jet fuel production

open access: yesJournal of Engineering and Applied Science, 2021
Caustic wash is one of many industrial processes that are used to produce jet fuel. In this study, an analysis of the key parameters of the kerosene caustic wash process was conducted to improve the total performance of the treatment process.
Ahmed Mohamed Selim Abdelhamid   +1 more
doaj   +1 more source

Intrinsic scatter of caustic masses and hydrostatic bias: An observational study [PDF]

open access: yes, 2017
All estimates of cluster mass have some intrinsic scatter and perhaps some bias with true mass even in the absence of measurement errors for example caused by cluster triaxiality and large scale structure.
Andreon, S.   +3 more
core   +2 more sources

Management of esophageal caustic injury

open access: yesWorld journal of gastrointestinal pharmacology and therapeutics, 2017
Ingestion of caustic substances and its long-term effect on the gastrointestinal system maintain its place as an important public health issue in spite of the multiple efforts to educate the public and contain its growing number. This is due to the ready
M. D. De Lusong, A. Timbol, D. Tuazon
semanticscholar   +1 more source

Caustic free completion of pressureless perfect fluid and k-essence [PDF]

open access: yes, 2017
A bstractBoth k-essence and the pressureless perfect fluid develop caustic singularities at finite time. We further explore the connection between the two and show that they belong to the same class of models, which admits the caustic free completion by ...
E. Babichev, S. Ramazanov
semanticscholar   +1 more source

THE ANALYSIS OF BIFURCATION SOLUTIONS OF THE CAMASSA–HOLM EQUATION BY ANGULAR SINGULARITIES

open access: yesПроблемы анализа, 2020
This paper studies bifurcation solutions of the Camassa – Holm equation by using the local Lyapunov – Schmidt method. The Camassa–Holm equation is studied by reduction to an ODE.
H. K. Kadhim, M. A. Abdul Hussain
doaj   +1 more source

Assessment of the Potential of Using Nanofiltration Polymeric and Ceramic Membranes to Treat Refinery Spent Caustic Effluents

open access: yesMembranes, 2022
Spent caustic effluents are very challenging due to their very hazardous nature in terms of toxicity as well as their extreme pH (approximately 12–14). Spent caustic has presented a challenge for wastewater treatment in refineries, due to its composition
Ana Isabel Rita   +6 more
doaj   +1 more source

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