Results 11 to 20 of about 172,900 (260)

Metanilpotent fitting classes [PDF]

open access: yesJournal of the Australian Mathematical Society, 1974
Hawkes showed in [10] that classes of metanilpotent groups which are both formations and Fitting classes are saturated and subgroup closed; more, he characterized all such classes as those local formations with a local definition consisting of saturated formations (of nilpotent groups).
Bryce, R. A., Cossey, John
openaire   +1 more source

Copy‐paste with self‐adaptation: A self‐adaptive adjustment method based on copy‐paste augmentation

open access: yesIET Computer Vision, 2023
Data augmentation diversifies the information in the dataset. For class imbalance, the copy‐paste augmentation generates new class information to alleviate the impact of this problem. However, these methods rely excessively on human intuition.
Xiaoyu Yu   +4 more
doaj   +1 more source

Design of the Class-E Power Amplifier with Finite DC Feed Inductance under Maximum-Rating Constraints

open access: yesApplied Sciences, 2021
This paper proposes an analytical expression set to determine the maximum values of currents and voltages in the Class-E Power Amplifier (PA) with Finite DC-Feed Inductance (FDI) under the following assumptions—ideal components (e.g., inductors and ...
Ingrid Casallas   +4 more
doaj   +1 more source

Normal -Fitting classes [PDF]

open access: yesProceedings of the Edinburgh Mathematical Society, 1992
The authors together with M. J. Karbe [Ill. J. Math.33 (1989) 333–359] have considered Fitting classesof-groups and, under some rather strong restrictions, obtained an existence and conjugacy theorem for-injectors. Results of Menegazzo and Newell show that these restrictions are, in fact, necessary.The Fitting classisnormalif, for eachis the unique ...
J. C. Beidleman, M. J. Tomkinson
openaire   +1 more source

Partition comparison and fitting function of class conditional probability density of hourly rainfall

open access: yes暴雨灾害, 2021
Six latitude-longitude rectangular regions were selected (Four is on the 30°N line: around Ya'an, in the southwest of Hubei, in the souther of Jianghan Plain, west Hangzhou Bay.Others are Hainan Island and around Zhengzhou, one is in its south and ...
Tieyuan SHEN   +5 more
doaj   +1 more source

Weakly totally permutable products and Fitting classes [PDF]

open access: yesInternational Journal of Group Theory, 2021
It is known that if $ G=AB $ is a product of its totally permutable subgroups $ A $ and $ B $‎, ‎then $ G\in \mathfrak{F} $ if and only if $ A\in \mathfrak{F} $ and $ B\in \mathfrak{F} $ when $ \mathfrak{F} $ is a Fischer class containing the class ...
Sesuai Madanha
doaj   +1 more source

Identifying 46 New Open Cluster Candidates in Gaia EDR3 Using a Hybrid pyUPMASK and Random Forest Method

open access: yesThe Astrophysical Journal Supplement Series, 2023
Open clusters (OCs) are regarded as tracers to understand stellar evolution theory and validate stellar models. In this study, we presented a robust approach to identifying OCs.
Huanbin Chi   +3 more
doaj   +1 more source

Polarization performance simulation for the GeoXO atmospheric composition instrument: NO2 retrieval impacts [PDF]

open access: yesAtmospheric Measurement Techniques, 2022
NOAA's Geostationary Extended Observations (GeoXO) constellation will continue and expand on the capabilities of the current generation of geostationary satellite systems to support US weather, ocean, atmosphere, and climate operations.
A. Pearlman   +11 more
doaj   +1 more source

Synthesis and Application of Amin-modified Fe3O4@MCM-41 Core-shell Magnetic Mesoporous for Effective Removal of pb2+ ions from Aqueous Solutions and Optimization with Response Surface Methodology [PDF]

open access: yesJournal of Water and Environmental Nanotechnology, 2018
In this study, a selective, fast and novel magnetic mesoporous silica sorbent Fe3O4@MCM-41-NH2, was synthesized, functionalized and has been used for the removal of Pb+2 ions from aqueous solution.
Kamal Alizadeh   +2 more
doaj   +1 more source

Fitting classes and lattice formations II [PDF]

open access: yesJournal of the Australian Mathematical Society, 2004
AbstractGiven a lattice formation F of full characteristic, an F - Fitting class is a Fitting class with stronger closure properties involving F -subnormal subgroups. The main aim of this paper is to prove that the associated injectors possess a good behaviour with respect to F -subnormal subgroups.
Arroyo-Jordá, M., Pérez-Ramos, M. D.
openaire   +2 more sources

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