Results 11 to 20 of about 524,352 (318)

Unveiling the Role of the Beam Shape in Photothermal Beam Deflection Measurements: A 1D and 2D Complex Geometrical Optics Model Approach

open access: yesPhotonics, 2022
The preponderance of laser beam shapes cannot be ruled out during the implementation of an optical experiment nor during the formulation of its theoretical background. The present work elucidates the role of Gaussian and top-hat beam shapes in generating
Mohanachandran Nair Sindhu Swapna   +2 more
doaj   +1 more source

Optimal Model Mapping for Intravoxel Incoherent Motion MRI

open access: yesFrontiers in Human Neuroscience, 2021
In general, only one diffusion model would be applied to whole field-of-view voxels in the intravoxel incoherent motion-magnetic resonance imaging (IVIM-MRI) study.
Yen-Peng Liao   +8 more
doaj   +1 more source

Thermometry of Gaussian quantum systems using Gaussian measurements [PDF]

open access: yesQuantum, 2022
We study the problem of estimating the temperature of Gaussian systems with feasible measurements, namely Gaussian and photo-detection-like measurements.
Marina F.B. Cenni   +3 more
doaj   +1 more source

Gaussian Integers [PDF]

open access: yesFormalized Mathematics, 2013
Summary Gaussian integer is one of basic algebraic integers. In this article we formalize some definitions about Gaussian integers [27]. We also formalize ring (called Gaussian integer ring), Z-module and Z-algebra generated by Gaussian integer mentioned above.
Futa, Yuichi   +3 more
openaire   +3 more sources

Kajian Teoritik Persamaan Diferensial Stokastik bagi Kurs Mata Uang (Forex), Kajian Khusus : Kurs IDR/USD

open access: yesIndonesian Journal of Applied Physics, 2023
Telah dilakukan kajian persamaan diferensial stokastik bagi pergerakan kurs mata uang. Kajian terhadap rapat peluang return perlu dilakukan karena rapat peluang return menggambarkan fluktuasi kurs mata uang serta mencerminkan interaksi yang terjadi di ...
Isa Isnawanti, Dwi Satya Palupi
doaj   +1 more source

Hypergeometric-Gaussian modes [PDF]

open access: yesOptics Letters, 2007
We studied a novel family of paraxial laser beams forming an overcomplete yet nonorthogonal set of modes. These modes have a singular phase profile and are eigenfunctions of the photon orbital angular momentum. The intensity profile is characterized by a single brilliant ring with the singularity at its center, where the field amplitude vanishes.
KARIMI, ebrahim   +4 more
openaire   +6 more sources

FUZZY VECTOR AUTOREGRESSION FOR FORECASTING FARMER EXCHANGE RATE IN CENTRAL JAVA PROVINCE

open access: yesMedia Statistika, 2022
Computer technology has developed to a very advanced measure. Calculations using complex formulas are no longer an obstacle for industry and researchers.
Nurhayadi Nurhayadi
doaj   +1 more source

Gaussian equilibration

open access: yesPhysical Review E, 2013
A finite quantum system evolving unitarily equilibrates in a probabilistic fashion. In the general many-body setting the time-fluctuations of an observable \mathcal{A} are typically exponentially small in the system size. We consider here quasi-free Fermi systems where the Hamiltonian and observables are quadratic in the Fermi operators. We first prove
Venuti, Lorenzo Campos, Zanardi, Paolo
openaire   +4 more sources

MÉTODOS COMPUTACIONALES PARA LA DELAMINACIÓN DE GRAFITO UTILIZANDO SURFACTANTES ANIONICOS PARA PRODUCIR GRAFENO

open access: yesRevista de Investigaciones Universidad del Quindío, 2019
Today, using thermal and chemical reduction and solubility, graphene oxide is produced in large scale. Since there are various methods for producing graphene, each of which allocates properties to the produced graphene, the purpose of this research is to
Hashem Ahmadin   +3 more
doaj   +1 more source

Are the program packages for molecular structure calculations really black boxes? [PDF]

open access: yesJournal of the Serbian Chemical Society, 2007
In this communication it is shown that the widely held opinion that compact program packages for quantum-mechanical calculations of molecular structure can safely be used as black boxes is completely wrong.
Mraković Ana   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy