Results 1 to 10 of about 5,284 (68)

On Star Selection Principles Theory

open access: yesAxioms, 2023
The aim of this paper is to review up-to-date recent results in the field of star selection principles, a rapidly growing area of topology, and to present a few new results.
Ljubisa Kočinac, Kočinac Ljubiša D R
exaly   +3 more sources

Some observations on a clopen version of the Rothberger property

open access: yesCubo, 2023
In this paper, we prove that a clopen version $S_1(\mathcal{C}_\mathcal{O}, \mathcal{C}_\mathcal{O})$ of the Rothberger property and Borel strong measure zeroness are independent.
Manoj Bhardwaj, Alexander V. Osipov
doaj   +1 more source

Selection principles and bitopological hyperspaces

open access: yesApplied General Topology, 2023
In this paper we continue to research relationships between closure-type properties of hyperspaces over a space X and covering properties of X. For a Hausdorff space X we denote by 2X the family of all closed subsets of X.
Alexander V. Osipov
doaj   +1 more source

Selection principles: s-Menger and s-Rothberger-bounded groups

open access: yesApplied General Topology, 2022
In this paper, selection principles are defined and studied in the realm of irresolute topological groups. Especially, s-Menger-bounded and s-Rothberger-bounded type covering properties are introduced and studied.
Muhammad Asad Iqbal, Moiz ud Din Khan
doaj   +1 more source

Principles of selection and optimization of cooling systems in public buildings [PDF]

open access: yesE3S Web of Conferences, 2021
Aspects of selecting the most effective refrigerating machine for air conditioning systems, taking into account the comparative analysis of the energy efficiency of the refrigerating machine are considered.
Busakhin Alexey
doaj   +1 more source

Selection principles and covering properties in bitopological spaces

open access: yesApplied General Topology, 2020
Our main focus in this paper is to introduce and study various selection principles in bitopological spaces. In particular, Menger type, and Hurewicz type covering properties like: Almost p-Menger, star p-Menger, strongly star p-Menger, weakly p-Hurewicz,
Moiz ud Din Khan, Amani Sabah
doaj   +1 more source

Selection of soil for transition layers in earth dams on the example of the Świnna Poręba Dam [PDF]

open access: yesActa Scientiarum Polonorum. Architectura, 2020
The article presents considerations on the principles of soil selection for transition layers in earth dams, both of which also act as reverse filters. It focuses on the identification of phenomena related to filtration, in particular internal erosion ...
Zdzisław Skutnik, Michał Cmiel
doaj   +1 more source

Principles and correction of 5’-splice site selection

open access: yesRNA Biology, 2022
In Eukarya, immature mRNA transcripts (pre-mRNA) often contain coding sequences, or exons, interleaved by non-coding sequences, or introns. Introns are removed upon splicing, and further regulation of the retained exons leads to alternatively spliced ...
Florian Malard   +2 more
doaj   +1 more source

SELECTION OF AN APPROPRIATE PERSONAL PROTECTIVE EQUIPMENT USING THE ANALYTIC HIERARCHY PROCESS

open access: yesEskişehir Osmangazi Üniversitesi Mühendislik ve Mimarlık Fakültesi Dergisi, 2022
The main principles of safety risk reduction are elimination, substitution, and engineering controls. Hazardous conditions, safe work practices, and other forms of managerial controls should be provided for a safe work environment.
Seyhan Önder   +2 more
doaj   +1 more source

Structure, growth and increment of the stands in the course of stand transformation in the Klokočná Forest Range

open access: yesJournal of Forest Science, 2006
This paper deals with transformation of pure even-aged forest stands to uneven-aged irregular stands on an example of the Klokočná Forest Range. The fully operational management system according to principles of shelterwood or selection systems has been ...
J. Remeš, J. Kozel
doaj   +1 more source

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