Treatment of Variable Physical Properties by Dimensional Analysis

Simple butt welds were produced using a particular metal and a variety of combinations of current, voltage, and welding velocity. Four metals possessing quite different physical properties were utilized. Coated stick electrodes and a d-c power source were employed and penetration was measured for each combination of work material and welding conditions. With the use of dimensional analysis, an expression was derived to predict penetration as a function of operating conditions and the physical properties of the metal welded. Within the range of variables investigated, the correlation between predicted values and measured values was quite reasonable.

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Application of Dimensional Analysis to the Relationship Between Velocity of Sound and Physical Properties of Organic Liquids and Introductory Nuclear Physics and Theorie der Wärme, Molekular-kinetische Theorie der Materie

Physics Today ◽

10.1063/1.3060035 ◽

1956 ◽

Vol 9 (7) ◽

pp. 30-32

Author(s):

Dudley Thompson ◽

N. N. Bakhshi ◽

David Halliday ◽

Clemens Schaefer

Keyword(s):

Physical Properties ◽

Dimensional Analysis ◽

Nuclear Physics ◽

Organic Liquids ◽

Velocity Of Sound ◽

The Relationship

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The Photometric Properties of the Ap Stars

International Astronomical Union Colloquium ◽

10.1017/s0252921100080684 ◽

1976 ◽

Vol 32 ◽

pp. 365-377 ◽

Cited By ~ 2

Author(s):

B. Hauck

Keyword(s):

Physical Properties ◽

Ap Stars

The Ap stars are numerous - the photometric systems tool It would be very tedious to review in detail all that which is in the literature concerning the photometry of the Ap stars. In my opinion it is necessary to examine the problem of the photometric properties of the Ap stars by considering first of all the possibility of deriving some physical properties for the Ap stars, or of detecting new ones. My talk today is prepared in this spirit. The classification by means of photoelectric photometric systems is at the present time very well established for many systems, such as UBV, uvbyβ, Vilnius, Geneva and DDO systems. Details and methods of classification can be found in Golay (1974) or in the proceedings of the Albany Colloquium edited by Philip and Hayes (1975).

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The Infection of Cells by Bullet-Shaped Viruses

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100063779 ◽

1969 ◽

Vol 27 ◽

pp. 372-373

Author(s):

Frederick A. Murphy ◽

Alyne K. Harrison ◽

Sylvia G. Whitfield

Keyword(s):

Electron Microscopy ◽

Physical Properties ◽

Host Cell ◽

Thin Section ◽

Cultured Cells ◽

Cell Infection ◽

Thin Section Electron Microscopy ◽

Section Electron ◽

Section Electron Microscopy

The bullet-shaped viruses are currently classified together on the basis of similarities in virion morphology and physical properties. Biologically and ecologically the member viruses are extremely diverse. In searching for further bases for making comparisons of these agents, the nature of host cell infection, both in vivo and in cultured cells, has been explored by thin-section electron microscopy.

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