Results 1 to 10 of about 13,334,884 (205)

On the Replica of US Pulmonary Artifacts by Means of Physical Models [PDF]

open access: yesDiagnostics, 2021
Currently, the diagnostic value of the artefactual information provided by lung ultrasound images is widely recognized by physicians. In particular, the existence of a correlation between the visual characteristics of the vertical artifacts, which arise ...
Marcello Demi
doaj   +2 more sources

Estimating of Surface Tension and Viscosity of Liquid Ag-Cu Alloys

open access: yesSüleyman Demirel Üniversitesi Fen-Edebiyat Fakültesi Fen Dergisi, 2021
The present paper compares the results obtained from the experiments for the binary liquid Cu-Ag system at a temperature of 1373K. All viscosity models available in the existing literature on the viscosity dependence of the viscosity of binary liquid ...
Hüseyin Arslan, Musab Yavuz
doaj   +1 more source

Krasovskii Passivity and μ-Synthesis Controller Design for Quasi-Linear Affine Systems

open access: yesEnergies, 2021
This paper presents an end-to-end method to design passivity-based controllers (PBC) for a class of input-affine nonlinear systems, named quasi-linear affine.
Vlad Mihaly   +2 more
doaj   +1 more source

Modeling of the cold electron plasma density for radiation belt physics

open access: yesFrontiers in Astronomy and Space Sciences, 2023
This review focusses strictly on existing plasma density models, including ionospheric source models, empirical density models, physics-based and machine-learning density models.
J.-F. Ripoll   +12 more
doaj   +1 more source

Modeling the kinetics of essential oil hydrodistillation from plant materials [PDF]

open access: yesHemijska Industrija, 2013
The present work deals with modeling the kinetics of essential oils extraction from plant materials by water and steam distillation. The experimental data were obtained by studying the hydrodistillation kinetics of essential oil from juniper ...
Milojević Svetomir Ž.   +4 more
doaj   +1 more source

Use of liquid analog model in engineering hydrology training (precipitation-runoff model) [PDF]

open access: yesFanāvarī-i āmūzish, 2008
Proper training of hydrologists in the field of precipitation-runoff modeling can play a significant role in overcoming many flood problems. In this paper, after introducing the liquid analog model, it is established as a new analog model in the field of
V. Noorani, P. Monajemi, M.J. Rafizadeh
doaj   +1 more source

The Influence of Confining Topography Orientation on Experimental Turbidity Currents and Geological Implications

open access: yesFrontiers in Earth Science, 2021
Turbidity currents distribute sediment across the seafloor, forming important archives of tectonic and climatic change on the Earth’s surface. Turbidity current deposition is affected by seafloor topography, therefore understanding the interaction of ...
Euan L. Soutter   +7 more
doaj   +1 more source

Lung Ultrasound Artifacts Interpreted as Pathology Footprints

open access: yesDiagnostics, 2023
Background: The original observation that lung ultrasound provides information regarding the physical state of the organ, rather than the anatomical details related to the disease, has reinforced the idea that the observed acoustic signs represent ...
Marcello Demi   +2 more
doaj   +1 more source

Accuracy of boundary layer treatments at different Reynolds scales

open access: yesOpen Engineering, 2020
Resistive forces associated to boundary layers (‘friction’) are usually out of scale in physical models of hydraulic structures, especially in the case of hydraulically smooth walls, generating distortions in the model results known as scale effects ...
Badano Nicolás D., Menéndez Angel N.
doaj   +1 more source

Towards a Method to Enable the Selection of Physical Models within the Systems Engineering Process: A Case Study with Simulink Models

open access: yesApplied Sciences, 2023
The use of different techniques and tools is a common practice to cover all stages in the development life-cycle of systems generating a significant number of work products.
Eduardo Cibrián   +3 more
doaj   +1 more source

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