Determination of the conditions of formation of annular coatings with a linear dependence of thickness on rotation angle

1983 ◽  
Vol 39 (2) ◽  
pp. 976-980
Author(s):  
V. A. Martsinovskii ◽  
F. Kh. Safiullin
Keyword(s):  
Linear Dependence ◽  
Rotation Angle

scholarly journals Possibilities of Detecting Diesel Leaking Into Engine Oil with Fuel Sniffer

2019 ◽  
Vol 67 (3) ◽  
pp. 749-755
Author(s):  
Marie Sejkorová ◽  
Petr Jilek
Keyword(s):  
Methyl Ester ◽  
Diesel Fuel ◽  
Linear Dependence ◽  
Systematic Errors ◽  
Point Of View ◽  
Engine Oil ◽  
Accuracy And Precision ◽  
Rapeseed Methyl Ester

The paper presents the possibilities of detecting diesel fuel without rapeseed methyl ester (RME) in the concentration range of 0–9.54 wt% leaking into engine oil of SAE 15W – 40 viscosity specifications using Spectro FDM Q600 – Fuel Sniffer. The results are confronted with regard to the determination of the accuracy and precision of the repeatability of measuring diesel fuel in oil with this type of instrument. By expressing the linear dependence between the diesel concentration determined by Fuel Sniffer and the actual diesel concentration in engine oil of model samples, correlation R = 0.998 was obtained. From the point of view of verifying the accuracy of the method, it was not proved that it would be burdened with systematic errors. Precision of measurement by this instrument, expressed as repeatability, reached RSD below 5% only for the concentration of diesel in the oil higher than 3.33 wt%.

scholarly journals Computationally Efficient Method of Co-Energy Calculation for Transverse Flux Machine Based on Poisson Equation in 2D

Energies ◽  
2019 ◽  
Vol 12 (22) ◽  
pp. 4340
Author(s):  
Andrzej Smoleń ◽  
Lesław Gołębiowski ◽  
Marek Gołębiowski ◽  
Damian Mazur
Keyword(s):  
Poisson Equation ◽  
Cross Section ◽  
Rotation Angle ◽  
3D Models ◽  
Original Method ◽  
Energy Calculation ◽  
The Finite Element Method ◽  
Computationally Efficient ◽  
Main Requirement

The article presents an original method for numerical determination of the value of magnetic co-energy of a transverse construction motor. The aim of the developed method is initial determination of the co-energy value for the analyzed structure in the function of rotor rotation angle. The main requirement set to the presented method was the lowest possible complexity of the process computation, lack of the necessity to apply costly dedicated software, as well as creating construction 3D models. These requirements were met by applying specific cross-section/development of the analyzed machine geometry, as well as application of specific boundary conditions, which enabled reduction of the analyzed problem to solving a Poisson equation in 2D. The calculations were done with the Finite Element Method.

Linear dependence tests for determination of number of chemical species

1976 ◽  
Vol 80 (7) ◽  
pp. 690-693 ◽  
Author(s):  
Edwin H. Lane ◽  
Sherril D. Christian ◽  
Frank Garland
Keyword(s):  
Linear Dependence ◽  
Chemical Species

scholarly journals Group Classification and Conservation Laws of a Class of Hyperbolic Equations

2021 ◽  
Vol 2021 ◽  
pp. 1-13
Author(s):  
J. C. Ndogmo
Keyword(s):  
Differential Equations ◽  
Conservation Laws ◽  
Linear Dependence ◽  
Hyperbolic Equations ◽  
Group Classification ◽  
The Family ◽  
The Given ◽  
Low Order

Abstracts. A method for the group classification of differential equations is proposed. It is based on the determination of all possible cases of linear dependence of certain indeterminates appearing in the determining equations of symmetries of the equation. The method is simple and systematic and applied to a family of hyperbolic equations. Moreover, as the given family contains several known equations with important physical applications, low-order conservation laws of some relevant equations from the family are computed, and the results obtained are discussed with regard to the symmetry integrability of a particular class from the underlying family of hyperbolic equations.

Determination of exact rotation angle and discrimination for rotated images

2002 ◽  
Vol 34 (4) ◽  
pp. 313-327 ◽  
Author(s):  
K.M. Iftekharuddin ◽  
C. Rentala ◽  
A. Dani
Keyword(s):  
Rotation Angle

Bestimmung von Reflexionskoeffizienten an der Membran der Alge Valonia utricularis / Determination of Reflection Coefficients of the Membrane of the Algae Valonia utricularis

1970 ◽  
Vol 25 (5) ◽  
pp. 500-504 ◽  
Author(s):  
U. Zimmermann ◽  
E. Steudle
Keyword(s):  
Hydrostatic Pressure ◽  
Osmotic Pressure ◽  
Water Flow ◽  
Linear Dependence ◽  
Volume Flow ◽  
Reflection Coefficients ◽  
Valonia Utricularis ◽  
Flow Through ◽  
Zero Flow

A zero flow method of rapidly determining reflection coefficients of giant algae cells is described.Changes of the osmotic pressure in the outside medium caused a net volume flow through the cell membranes and consequently changes of the hydrostatic pressure inside the cell. By continously measuring the hydrostatic pressure it was possible, to determine the concentration outside the cell at which no volume flow occurs.The reflection coefficients of some non-electrolyts were determined on the membrane of the mediterranean algae Valonia utricularis with an error of 3 - 4% and are discussed on the basis of the pore model.The hydrostatic pressure inside Valonia cells decreased exponentially with time, when they were put into a hypertonic aequous solution. If a linear dependence of the volume (water) flow on the hydrostatic and osmotic pressure differences is supposed, it will be possible to calculate the volume (water) flow.

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