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Quantitative Evaluation of Pectoral Muscle Visualisation as an Indicator of Positioning Quality in Screening Mammography [PDF]

open access: yesDiagnostics
Background/Objectives: Image quality of mammograms in breast cancer screening is strongly operator-dependent, particularly in the mediolateral oblique (MLO) projection where adequate visualisation of the pectoralis major muscle serves as a surrogate ...
Maja Karić   +2 more
doaj   +2 more sources

Ultrasound-guided Finger Compression with Breast Stabilization for Postbiopsy Breast Pseudoaneurysm [PDF]

open access: yesJournal of Medical Ultrasound
Breast pseudoaneurysm is an uncommon vascular complication after vacuum-assisted breast biopsy. Ultrasound-guided probe compression is typically recommended as first-line conservative management; however, technical failure may occur when probe slippage ...
Yu-Hsin Weng   +2 more
doaj   +2 more sources

Spectral resolutions in effect algebras [PDF]

open access: yesQuantum, 2022
Effect algebras were introduced as an abstract algebraic model for Hilbert space effects representing quantum mechanical measurements. We study additional structures on an effect algebra $E$ that enable us to define spectrality and spectral resolutions ...
Anna Jenčová, Sylvia Pulmannová
doaj   +1 more source

Dilatations of Linear Operators

open access: yesСовременная математика: Фундаментальные направления, 2020
The article is devoted to building various dilatations of linear operators. The explicit construction of a unitary dilation of a compression operator is considered.
Yu. L. Kudryashov
doaj   +1 more source

TONE COMPRESSION ALGORITHM FOR HIGH DYNAMIC RANGE MEDICAL IMAGES [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2019
We propose here an HDR compression method for medical images based on a windowing operator, an adaptive tone mapping operator, and the probabilistic normal-gamma model.
I. A. Gracheva, A. V. Kopylov
doaj   +1 more source

Lateral Abdominal Muscles Shear Modulus and Thickness Measurements under Controlled Ultrasound Probe Compression by External Force Sensor: A Comparison and Reliability Study

open access: yesSensors, 2021
The aim of this study was to perform a reliability and agreement analysis and to compare lateral abdominal muscles (LAMs) thickness and elasticity results obtained by an experienced operator, by a non-experienced operator, and in an ultrasound imaging ...
Grzegorz Mikołajowski   +3 more
doaj   +1 more source

Multifunctional Complex of Thermomechanical Calibration by Screw Compression [PDF]

open access: yesMATEC Web of Conferences, 2021
In the present paper, a soft-hardware system is considered intended for controlling the complex for high-temperature thermomechanical calibration by screw compression. The functional capabilities and block diagram of the complex are presented.
Balobanov Nikita   +4 more
doaj   +1 more source

Fuzzy Counterparts of Fischer Diagonal Condition in ⊤-Convergence Spaces

open access: yesMathematics, 2019
Fischer diagonal condition plays an important role in convergence space since it precisely ensures a convergence space to be a topological space. Generally, Fischer diagonal condition can be represented equivalently both by Kowalsky compression operator ...
Qiu Jin, Lingqiang Li, Jing Jiang
doaj   +1 more source

CONSIDERATIONS ON THE SOURCES OF ERRORS IN EXPERIMENTAL COMPRESSION DETERMINATIONS [PDF]

open access: yesFiabilitate şi Durabilitate, 2023
The compression request of some materials sintered at ambient temperature generally presents a macrostructural quasi-homogeneity and quasi-isotropy and inhomogeneities appear due to the presence of pores in the structure.
Cristina IONICI   +2 more
doaj  

Alternative iterative technique

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2019
The standard methods of applying iterative techniques do not apply when the nonlinear term is neither monotonic (corresponding to an increasing or decreasing operator) nor Lipshitz (corresponding to a condensing operator).
Richard Avery   +2 more
doaj   +1 more source

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