Results 1 to 10 of about 676,086 (280)

Boundary Value Problem of the Operator ⊕k Related to the Biharmonic Operator and the Diamond Operator [PDF]

open access: yesMathematics, 2018
This paper presents an alternative methodology for finding the solution of the boundary value problem (BVP) for the linear partial differential operator.
Chalermpon Bunpog
exaly   +6 more sources

On the Convolution Equation Related to the Diamond Klein-Gordon Operator [PDF]

open access: yesAbstract and Applied Analysis, 2011
We study the distribution eαx(♢+m2)kδ for m≥0, where (♢+m2)k is the diamond Klein-Gordon operator iterated k times, δ is the Dirac delta distribution, x=(x1,x2,…,xn) is a variable in ℝn, and α=(α1,α2,…,αn) is a constant.
Amphon Liangprom, Kamsing Nonlaopon
doaj   +2 more sources

Relative-Entropy Variational Principle for Semiclassical Gravity with Finite-Resolution Boundaries [PDF]

open access: yesEntropy
This work formulates semiclassical gravity within a causal-diamond framework where a finite-resolution boundary provides the edge structure for a local Wheeler–DeWitt description.
Olivier Nusbaumer
doaj   +2 more sources

Protocols and challenges in managing multi-source biological evidence at the crime scene: a scoping review [PDF]

open access: yesForensic Science International: Synergy
To maximise DNA yield from evidence and ensure the integrity of the chain of custody, all biological evidence must be properly managed and preserved during initial crime scene processing.
Mayur Sudhir Balbudhe   +4 more
doaj   +2 more sources

Satisfiability Problem in Interval FP-logic

open access: yesИзвестия Иркутского государственного университета: Серия "Математика", 2023
The article investigates the interval modal logic, in which an action of the modal operator $\Diamond$ is limited by the boundaries of an interval. In addition, the language of modal logic is extended by the operator $D (\alpha, \beta)$, the truth of ...
N.A. Protsenko   +2 more
doaj   +1 more source

X-ray Spectrum Reconstruction by Diamond Detectors with Linear Response to Dose Rate

open access: yesCrystals, 2021
The absorbers method is here applied by interposing filters of variable thickness between the X-ray source and a detector so to attenuate the radiation intensity by using the attenuation coefficient as a selective photon energy operator.
Daniele Maria Trucchi, Paolo Ascarelli
doaj   +1 more source

Crop Images Segmentation using Adaptive Morphologic Descriptors

open access: yesNova Scientia, 2020
This research is focused on the segmentation improvement of crop images by using adaptive morphologic descriptors instead of classic algorithms like K-means and the top-hat operator using predefined shapes like disk or diamond.
Miguel Ángel Gil Ríos   +5 more
doaj   +1 more source

A New Approach for the Fractional Integral Operator in Time Scales with Variable Exponent Lebesgue Spaces

open access: yesFractal and Fractional, 2021
Integral equations and inequalities have an important place in time scales and harmonic analysis. The norm of integral operators is one of the important study topics in harmonic analysis.
Lütfi Akın
doaj   +1 more source

A Diamond Shaped Multilevel Inverter With Dual Mode of Operation [PDF]

open access: yesIEEE Access, 2021
This study presents a novel multilevel inverter structure that can operate in both switched capacitor and asymmetric DC source modes. In the first mode, it can produce seven-level output voltage employing two switched capacitors and one single DC supply. The five-level output voltage is produced while operating the second mode.
Sheikh Tanzim Meraj   +7 more
openaire   +4 more sources

Comparison of Enamel Surface Integrity after De-Bracketing as Affected by Seven Different Orthodontic Residual Cement Removal Systems

open access: yesDiagnostics, 2023
This study used seven different adhesive removal systems to evaluate and compare enamel surface integrity, heat generation, and time consumed during residual cement removal after de-bracketing. The sample size was 140 human premolars. Teeth were cleaned,
Abdullazez Almudhi   +7 more
doaj   +1 more source

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