Results 21 to 30 of about 133,855 (339)

On the quasi-Fredholm and Saphar spectrum of strongly continuous Cosine operator function

open access: yesMoroccan Journal of Pure and Applied Analysis, 2021
Let (C(t))t∈𝕉 be a strongly continuous cosine family and A be its infinitesimal generator. In this work, we prove that, if C(t) – coshλt is Saphar (resp. quasi-Fredholm) operator and λt /∉iπ𝕑, then A – λ2 is also Saphar (resp.
Boua Hamid
doaj   +1 more source

Strong constraints from COSINE-100 on the DAMA dark matter results using the same sodium iodide target [PDF]

open access: yesScience Advances, 2021
Dark matter interpretations of the DAMA signals are excluded by COSINE-100 with the same NaI(Tl) target for various models.
Govinda Adhikari   +52 more
semanticscholar   +1 more source

Analysis of ultradian rest-activity rhythms using locomotor activity in mice [PDF]

open access: yesKosin Medical Journal, 2022
Background Locomotor activity in mice may have an ultradian rest-activity rhythm. However, to date, no study has shown how locomotor activity can be explained statistically using fitted cosine curves.
Jung Hyun Lee   +4 more
doaj   +1 more source

Hydraulic and ecological changes under drainage gate operations with coupled model SCHISM-CoSiNE in Saemangeum basin, Korea

open access: yesJournal of Environmental Engineering and Landscape Management, 2021
The drainage gates have been controlled for desalination under normal conditions and flood defense in  Saemangeum basin, Korea. Recently, it became an issue that the gates have been opened not to deteriorate water quality in the lake.
Hyung Ju Yoo   +3 more
doaj   +1 more source

Digital shaping methods for nuclear pulse signal based on cosine function

open access: yesHe jishu, 2023
BackgroundCosine function shaping (or cos shaping) is used to digitally shape nuclear pulse signals, as the shaping method is simple and has high operability and flexibility.PurposeThis study aims to explore different cosine shaping methods of nuclear ...
WEI Yong   +3 more
doaj   +1 more source

ON COSINE FAMILIES CLOSE TO SCALAR COSINE FAMILIES [PDF]

open access: yesJournal of the Australian Mathematical Society, 2015
We prove that if two normed-algebra-valued cosine families indexed by a single Abelian group, of which one is bounded and comprised solely of scalar elements of the underlying algebra, differ in norm by less than$1$uniformly in the parametrising index, then these families coincide.
openaire   +5 more sources

Spectral Theory For Strongly Continuous Cosine

open access: yesConcrete Operators, 2021
Let (C(t))t∈ℝ be a strongly continuous cosine family and A be its infinitesimal generator. In this work, we prove that, if C(t) – cosh λt is semi-Fredholm (resp.
Boua Hamid
doaj   +1 more source

An Intriguing Interpretation of 1D and 2D Non-Diffracting Modes in Cosine Profile

open access: yesPhotonics, 2023
We provide a simple analysis based on ray optics and Dirac notation for 1D (one-dimensional) and 2D (two-dimensional) non-diffracting modes in the cosine profile, which are often called Cosine beams. We explore various kinds of structured modes formed by
Allam Srinivasa Rao
doaj   +1 more source

Is Cosine-Similarity of Embeddings Really About Similarity? [PDF]

open access: yesThe Web Conference
Cosine-similarity is the cosine of the angle between two vectors, or equivalently the dot product between their normalizations. A popular application is to quantify semantic similarity between high-dimensional objects by applying cosine-similarity to a ...
Harald Steck   +2 more
semanticscholar   +1 more source

A comprehensive survey of sine cosine algorithm: variants and applications

open access: yesArtificial Intelligence Review, 2021
Sine Cosine Algorithm (SCA) is a recent meta-heuristic algorithm inspired by the proprieties of trigonometric sine and cosine functions. Since its introduction by Mirjalili in 2016, SCA has attracted great attention from researchers and has been widely ...
Asma Benmessaoud Gabis   +3 more
semanticscholar   +1 more source

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