Remark on a new method of calculation of eigenvalues and eigenfunctions for discrete operators

1995 ◽  
Vol 75 (3) ◽  
pp. 1770-1772 ◽  
Author(s):  
V. A. Sadovnichii ◽  
V. V. Dubrovskii
Keyword(s):  
New Method ◽  
Eigenvalues And Eigenfunctions ◽  
Method Of Calculation ◽  
Discrete Operators

New method of calculation of reversible integer 1D DCTs

2005 ◽  
Author(s):  
Artyom M. Grigoryan ◽  
Veerabhadra S. Bhamidipati ◽  
Srikrishna Alla
Keyword(s):  
New Method ◽  
Method Of Calculation

scholarly journals Pipe-concrete columns of buildings and their fire-resistance determination

2018 ◽  
Vol 196 ◽  
pp. 02011
Author(s):  
Nikolay Ilyin ◽  
Nadezhda Kondratyeva ◽  
Vasily Zaiko
Keyword(s):  
Fire Resistance ◽  
Field Tests ◽  
Concrete Columns ◽  
New Method ◽  
Statistical Quality Control ◽  
Resistance Level ◽  
Natural Fire ◽  
Method Of Calculation ◽  
Standard Fire ◽  
Metal Pipes

The research recognizes the necessity of developing a new method of calculation of pipe-concrete columns fire-resistance. It is important for expending the area of their application in construction of buildings and structures; in unique structures as well. The authors apply a simplified mathematical description of the process of pipe-concrete columns resistance to the standard fire effect. This method helps to increase the accuracy of fire resistance level determination to expand these constructions use. If buildings materials are rationally combined, it is possible to produce reliable and sufficiently fireproof structures. Pipe-concrete columns which are, in fact, metal pipes filled with concrete can serve as an example of such structures. Nowadays, field tests are used to determine pipe-concrete constructions fire resistance. The authors introduce a methodology of theoretical determination of pipe-concrete columns fire resistance limit. The use of the proposed methodology makes it possible to reduce labor and economic costs while determining buildings resistance with the use of the pipe-concrete. It opens a possibility of pipe-concrete structures reasonable application in construction practice. The use of this new method allows us to determine pipe-concrete columns fire resistance without resorting to natural fire. It also increases the accuracy of statistical quality control and non-destructive tests. The calculations made in this study as well as previous tests conducted by other researches prove that there is no need for additional fire protection of pipe-concrete columns.

Radiative Corrections for Electron Scattering in an External Field—A New Method of Calculation

1972 ◽  
Vol 5 (2) ◽  
pp. 358-376 ◽  
Author(s):  
Lester L. DeRaad ◽  
Richard J. Ivanetich ◽  
Kimball A. Milton ◽  
Wu-yang Tsai
Keyword(s):  
External Field ◽  
Electron Scattering ◽  
New Method ◽  
Radiative Corrections ◽  
Method Of Calculation

DEEP ELECTRICAL PROSPECTING—A DISCUSSION

Geophysics ◽  
1948 ◽  
Vol 13 (1) ◽  
pp. 92-97
Author(s):  
Sulhi Yüngül
Keyword(s):  
Apparent Resistivity ◽  
The Other ◽  
New Method ◽  
Depth Of Penetration ◽  
Method Of Calculation ◽  
Comprehensive Knowledge ◽  
Electrical Sounding ◽  
The Subject ◽  
Electrical Prospecting

In two papers published in Geophysics, one in the October, 1944, issue and the other in October, 1946, a system and method of calculation, called “Resistolog” method, was presented. The object of the Resistolog method is to eliminate the effects of superficial inhomogeneities which are the most troublesome obstacles in interpreting electrical sounding results in exploring deep, horizontal discontinuities. The following is a discussion of the papers mentioned above, mainly of the subject of (1) the apparent‐resistivity formula derived for use with the Resistolog configuration, (2) determination of inflectional points on apparent resistivity curves, (3) depth of penetration, and (4) distortion caused by the “far electrode.” A new method to determine inflectional points is also given. This paper includes a comprehensive knowledge about the forementioned papers and the reader may not have to refer to them.

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