Results 21 to 30 of about 1,645,310 (285)

On Magnetic Curves According to Killing Vector Fields in Euclidean 3-Space

open access: yesInternational Journal of Analysis and Applications, 2022
In the geometric theory of space curves, a magnetic field generates magnetic flow. The trajectories of magnetic flow are called magnetic curves. In the present paper, we obtain magnetic curves corresponding to killing magnetic fields in Euclidean 3-space
M. Khalifa Saad   +2 more
doaj   +1 more source

The construction of the flow duration curve and the regionalization parameters analysis in the northwest of China

open access: yesJournal of Water and Climate Change, 2021
Daily runoff is the data to estimate the water resources in a river. In many catchments, the daily discharge is not well observed. Flow duration curve is an important characteristic of daily runoff, and important for the design of water conservancy ...
Jinkai Luan   +3 more
doaj   +1 more source

Dispersive geometric curve flows [PDF]

open access: yesSurveys in Differential Geometry, 2014
The Hodge star mean curvature flow on a 3-dimension Riemannian or pseudo-Riemannian manifold, the geometric Airy flow on a Riemannian manifold, the Schrodingier flow on Hermitian manifolds, and the shape operator curve flow on submanifolds are natural non-linear dispersive curve flows in geometric analysis.
openaire   +2 more sources

Is the Choice of Flow Curve Fitting Equation Crucial for the Estimation of Pumping Characteristics?

open access: yesApplied Rheology, 2004
The answer to this provocative question is “no”! This is demonstrated by experiment and analysis for two very different materials – a highly concentrated emulsion and an 8%v/v Kaolin clay suspension. The flow curves of both materials clearly showed a low
Malkin A.Ya.   +3 more
doaj   +1 more source

Rheological Studies of Interferon Creams

open access: yesApplied Rheology, 2004
The determination of flow curves and the apparent viscosity curves at 28°C of creams containing human leukocyte alpha interferon as active principle is presented in this paper. These creams are used for the treatment of papiloma virus and herpes simplex.
Zumalacárregui Lourdes   +4 more
doaj   +1 more source

Slow invariant manifolds as curvature of the flow of dynamical systems [PDF]

open access: yes, 2014
Considering trajectory curves, integral of n-dimensional dynamical systems, within the framework of Differential Geometry as curves in Euclidean n-space, it will be established in this article that the curvature of the flow, i.e.
Chua, Leon   +2 more
core   +1 more source

Experimental Validation of Microvasculature Blood Flow Modeling by Diffuse Correlation Spectroscopy

open access: yesIEEE Access, 2020
Diffuse correlation spectroscopy (DCS) is an emerging technology to monitor the blood flow at microvasculature level, wherein the flow model is dependent on the movements of red blood cells (RBCs). To elucidate the mechanism of flow model, in this paper,
Yanwen Zhu   +3 more
doaj   +1 more source

Observing curved flow using RUFIS [PDF]

open access: yesMagnetic Resonance in Medicine, 1999
The rotating ultra-fast imaging sequence (RUFIS) is used to image spins flowing through the curved portion of a 180 degrees U-tube with a circular cross section and a ratio of inner diameter to curvature diameter of 0.41. A velocity-encoding preparation sequence is used with RUFIS to measure quantitatively the axial velocity distribution for spins ...
H M, Gach, I J, Lowe
openaire   +2 more sources

Regional flow duration curves for ungauged sites in Sicily [PDF]

open access: yesHydrology and Earth System Sciences, 2011
Flow duration curves are simple and powerful tools to deal with many hydrological and environmental problems related to water quality assessment, water-use assessment and water allocation.
F. Viola   +3 more
doaj   +1 more source

The study of displacing ability of lignosulfonate aqueous solutions on sand packed tubes

open access: yesЗаписки Горного института, 2023
This paper presents the findings of laboratory studies of rheological properties and oil displacing ability of aqueous solutions of technical grade lignosulfonate done on the sand packed tube models.
Mikhail B. Dorfman   +2 more
doaj  

Home - About - Disclaimer - Privacy