Results 1 to 10 of about 2,611,982 (376)

123–321 models of classical novae [PDF]

open access: yesAstronomy & Astrophysics, 2020
Context.High-resolution spectroscopy has revealed large concentrations of CNO and sometimes other intermediate-mass elements (e.g., Ne, Na, Mg, or Al, for ONe novae) in the shells ejected during nova outbursts, suggesting that the solar composition material transferred from the secondary mixes with the outermost layers of the underlying white dwarf ...
Jordi José   +2 more
openaire   +8 more sources

Fixed points of 321-avoiding permutations [PDF]

open access: yesProceedings of the American Mathematical Society, 2018
We describe the distribution of the number and location of the fixed points of permu- tations that avoid the pattern 321 via a bijection with rooted plane trees on n + 1 vertices. Using the local limit theorem for Galton-Watson trees, we are able to give an explicit description of the limit of this distribution.
Hoffman, Christopher   +2 more
openaire   +4 more sources

Study on the Hot Deformation Behavior of Stainless Steel AISI 321

open access: yesMaterials, 2022
In this study, the hot deformation behavior of austenitic Ti-modified AISI 321 steel with a relatively high content of carbon (0.07 wt.%) and titanium (0.50 wt.%) was studied in the temperature range of 1000–1280 °C and strain rates in the range of 0.01 ...
L. Radionova   +5 more
semanticscholar   +1 more source

Rowmotion on 321-Avoiding Permutations

open access: yesThe Electronic Journal of Combinatorics, 2023
We give a natural definition of rowmotion for $321$-avoiding permutations, by translating, through bijections involving Dyck paths and the Lalanne--Kreweras involution, the analogous notion for antichains of the positive root poset of type $A$. We prove that some permutation statistics, such as the number of fixed points, are homomesic under rowmotion,
Adenbaum, Ben, Elizalde, Sergi
openaire   +2 more sources

Corrosion Inhibition Effect of 5-Azidomethyl-8- Hydroxyquinoline on AISI 321 Stainless Steel in Phosphoric Acid Solution

open access: yesInternational Journal of Electrochemical Science, 2021
In the present paper, 5-Azidomethyl-8-hydroxyquinoline (AMHQ), a synthesized molecule, has been evaluated as a corrosion inhibitor for AISI 321 stainless steel in 5.5 M phosphoric acid solution, using chemical and electrochemical methods such as ...
Aimad Mazkour
semanticscholar   +1 more source

Investigating the effect of post weld heat treatment on corrosion properties of explosive bonded interface of AA5083/AA1050/SS 321 tubes

open access: yesMaterials Research Express, 2020
The corrosion behavior and microstructural changes in explosively welded AA5083/AA1050/SS 321 multilayer tubes after heat treatment were studied. Heat treatment were performed in 350 and 450 °C for 6 and 8 h.
Safarali Feleh Shargh   +4 more
semanticscholar   +1 more source

Rationality for subclasses of 321-avoiding permutations [PDF]

open access: yesEuropean Journal of Combinatorics, 2019
We prove that every proper subclass of the 321-avoiding permutations that is defined either by only finitely many additional restrictions or is well quasi-ordered has a rational generating function. To do so we show that any such class is in bijective correspondence with a regular language.
Albert, Michael   +3 more
openaire   +5 more sources

Corrosion behavior of metastable AISI 321 austenitic stainless steel: Investigating the effect of grain size and prior plastic deformation on its degradation pattern in saline media

open access: yesScientific Reports, 2019
The role of grain size and strain rate on the corrosion behavior of plastically-deformed Ti-stabilized austenitic stainless steel (AISI 321) in saline media was investigated.
A. Tiamiyu   +3 more
semanticscholar   +1 more source

Etiological Spectrum and Pattern of Change in Pituitary Stalk Thickening: Experience in 321 Patients.

open access: yesJournal of Clinical Endocrinology and Metabolism, 2019
OBJECTIVE To summarize the etiologies of pituitary stalk thickening (PST) and the natural course of indistinguishable PST. METHODS Clinical information, including the symptoms at onset and laboratory, imaging, operative, pathological, and follow-up ...
Xiaoping Zhou   +10 more
semanticscholar   +1 more source

Pacific Equatorial Age Transect [PDF]

open access: yes, 2010
Integrated Ocean Drilling Program Expedition 320/321, "Pacific Equatorial Age Transect" (Sites U1331–U1338), was designed to recover a continuous Cenozoic record of the equatorial Pacific by coring above the paleoposition of the Equator at successive crustal ages on the Pacific plate.
Akira Tsujimoto   +31 more
openaire   +4 more sources

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