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1 Dec 1945

Volume 16, Issue 12, pp. 745-848

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RESEARCH AND DEVELOPMENT SERVICE

G. M. Barnes

J. Appl. Phys. 16, 745 (1945); http://dx.doi.org/10.1063/1.1707530 (3 pages)

Online Publication Date: 15 April 2004

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Abstract Unavailable

RESEARCH—ITS COORDINATION AND APPLICATION IN THE DEVELOPMENT OF ORDNANCE MATERIEL

Scott B. Ritchie

J. Appl. Phys. 16, 747 (1945); http://dx.doi.org/10.1063/1.1707531 (5 pages)

Online Publication Date: 15 April 2004

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AMMUNITION RESEARCH AND DEVELOPMENT

I. A. Luke

J. Appl. Phys. 16, 751 (1945); http://dx.doi.org/10.1063/1.1707532 (7 pages)

Online Publication Date: 15 April 2004

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ARTILLERY MATERIEL RESEARCH AND DEVELOPMENT

W. R. Gerhardt

J. Appl. Phys. 16, 757 (1945); http://dx.doi.org/10.1063/1.1707533 (4 pages)

Online Publication Date: 15 April 2004

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SMALL ARMS AND SMALL ARMS AMMUNITION RESEARCH AND DEVELOPMENT

R. R. Studler

J. Appl. Phys. 16, 760 (1945); http://dx.doi.org/10.1063/1.1707534 (5 pages)

Online Publication Date: 15 April 2004

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ROCKETS AND MISSILES

G. W. Trichel

J. Appl. Phys. 16, 764 (1945); http://dx.doi.org/10.1063/1.1707535 (3 pages)

Online Publication Date: 15 April 2004

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TANK AND AUTOMOTIVE DEVELOPMENT

Joseph M. Colby

J. Appl. Phys. 16, 767 (1945); http://dx.doi.org/10.1063/1.1707536 (5 pages)

Online Publication Date: 15 April 2004

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AIRCRAFT ARMAMENT

George C. Gentry

J. Appl. Phys. 16, 771 (1945); http://dx.doi.org/10.1063/1.1707537 (3 pages)

Online Publication Date: 15 April 2004

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SOME RECENT ADVANCES IN BALLISTICS

J. Appl. Phys. 16, 773 (1945); http://dx.doi.org/10.1063/1.1707538 (8 pages)

Online Publication Date: 15 April 2004

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FERROUS METALLURGICAL RESEARCH

N. A. Matthews

J. Appl. Phys. 16, 780 (1945); http://dx.doi.org/10.1063/1.1707539 (8 pages)

Online Publication Date: 15 April 2004

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NON‐FERROUS METALLURGICAL RESEARCH AT FRANKFORD ARSENAL

C. H. Greenall

J. Appl. Phys. 16, 787 (1945); http://dx.doi.org/10.1063/1.1707540 (6 pages)

Online Publication Date: 15 April 2004

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RESEARCH AND DEVELOPMENT, MILITARY EXPLOSIVES AND PROPELLANTS

Miles W. Kresge

J. Appl. Phys. 16, 792 (1945); http://dx.doi.org/10.1063/1.1707541 (6 pages)

Online Publication Date: 15 April 2004

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THE RESEARCH AND DEVELOPMENT OF MATERIALS FOR ORDNANCE MATERIEL

J. H. Frye

J. Appl. Phys. 16, 797 (1945); http://dx.doi.org/10.1063/1.1707542 (5 pages)

Online Publication Date: 15 April 2004

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FUELS AND LUBRICANTS

R. E. Jeffrey

J. Appl. Phys. 16, 801 (1945); http://dx.doi.org/10.1063/1.1707543 (6 pages)

Online Publication Date: 15 April 2004

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Determination of Coexisting Phases in Heterogeneous Systems of Many Components

Paul A. Beck

J. Appl. Phys. 16, 808 (1945); http://dx.doi.org/10.1063/1.1707544 (8 pages) | Cited 3 times

Online Publication Date: 15 April 2004

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A general investigation was made of the coexistence relationships of n+1 phases in the isothermic‐isobaric sections of n‐component systems. It was found that for a given set of n+1 phases there are at most only two coexistence patterns possible. As a result in n‐component systems, as well as in ternary systems, theoretically only a single well‐chosen sample has to be examined for the phases it contains in order to completely clarify the phase coexistence relationships of n+1 phases whose composition is already known. The results obtained were further used to develop a general classification of the types of non‐variant equilibria occurring in many component systems.

The Production and Decomposition of Ozone by Low Pressure Mercury Vapor Lamps

L. R. Koller

J. Appl. Phys. 16, 816 (1945); http://dx.doi.org/10.1063/1.1707545 (5 pages) | Cited 2 times

Online Publication Date: 15 April 2004

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A photo‐tube method for measuring the concentration of ozone is described. Measurements were made of the rate of production and rate of decomposition of ozone in oxygen and in air by low pressure mercury vapor lamps. The production in oxygen is enhanced by the presence of nitrogen. Increasing the moisture content of the gas decreases the rate of production and increases the rate of decomposition. A new germicidal lamp enclosed in a 10‐liter glass tube will form an equilibrium concentration of 145 parts per million by volume. A quartz lamp under the same conditions will form 640 parts per million. With oxygen flowing through the tube the yield for the quartz lamp is 2.5×10−3 g ozone∕min. or 10 g kw hr.

Flexural Vibration of Unrestrained Cylinders and Disks

Gerald Pickett

J. Appl. Phys. 16, 820 (1945); http://dx.doi.org/10.1063/1.1707546 (12 pages) | Cited 4 times

Online Publication Date: 15 April 2004

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Solutions are given for the free flexural vibration of a cylinder vibrating as a rod would vibrate and for the free flexural vibration of a disk vibrating as a circular plate would vibrate. The solutions are based upon the mathematical theory of elasticity. Curves are given showing the correction factors which, when applied to the elementary solutions, will give results in agreement with those obtained by means of the more rigorous solutions given here.

High Dispersion Electron Diffraction by Primary Magnification

G. L. Simard, Charles J. Burton, and R. Bowling Barnes

J. Appl. Phys. 16, 832 (1945); http://dx.doi.org/10.1063/1.1707547 (5 pages) | Cited 4 times

Online Publication Date: 15 April 2004

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A method for attaining high dispersion in electron diffraction is presented. High dispersion may be obtained by primary magnification of a diffraction pattern formed in the normal manner at the object plane of a magnetic or electrostatic lens. Dispersion may be varied continuously by changing the lens current or voltage. The design of diffraction cameras of this type is discussed and their value in diffraction problems pointed out. The validity of the method is established by diffraction patterns obtained using a modified electron microscope adapter.

Strain Hardening Under Combined Stresses

W. Prager

J. Appl. Phys. 16, 837 (1945); http://dx.doi.org/10.1063/1.1707548 (4 pages) | Cited 29 times

Online Publication Date: 15 April 2004

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Experimental investigations of the strain hardening of metals under combined stresses are usually conducted so that the directions of the principal stresses as well as the ratios of their magnitudes remain constant during any one test. The paper is concerned with incompressible isotropic materials which are stressed in this manner and deform in accordance with certain postulates. The most general stress‐strain relation which can arise under these circumstances is established, and some special cases of this relation are discussed.

Coil Systems for Producing Transverse and Longitudinal Magnetic Gradients

George H. Shortley and Albert May

J. Appl. Phys. 16, 841 (1945); http://dx.doi.org/10.1063/1.1707549 (3 pages) | Cited 3 times

Online Publication Date: 15 April 2004

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A coil system is described which produces very constant magnetic gradients throughout a considerable part of the volume occupied by the coil assembly. One modification produces constant transverse and longitudinal gradients of the field transverse to a long cylindrical region; another modification produces constant transverse and longitudinal gradients of the magnetic field throughout a spherical volume. Gradient data are given for both modifications.

Data on Rate of Capillary Rise

Elmo J. LeGrand and William A. Rense

J. Appl. Phys. 16, 843 (1945); http://dx.doi.org/10.1063/1.1707550 (4 pages) | Cited 6 times

Online Publication Date: 15 April 2004

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General aspects of the dynamics of capillary rise are considered with references to extant theories. A stroboscopic method used to study the rise of a liquid in a capillary tube is discussed. Tables are presented showing the observed heights at various times during the rise for the liquids—water, ethyl alcohol, and glycol in each of three capillaries of different diameters.
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On a Novel Form of Refrigerator

John R. Roebuck

J. Appl. Phys. 16, 846 (1945); http://dx.doi.org/10.1063/1.1707551 (2 pages)

Online Publication Date: 15 April 2004

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Recent Applications of Physics

Clark Goodman

J. Appl. Phys. 16, 848 (1945); http://dx.doi.org/10.1063/1.1707552 (1 page)

Online Publication Date: 15 April 2004

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