Now showing items 21-30 of 55
Effect of Chain Conformations on the Frequency Distribution of an Idealized Chain
(The American Institute of Physics, 1966-10)
The frequency distribution of a simplified carbon skeleton chain is calculated for several conformations, given by successions of trans‐ and gauche structures in various orders. It is found that the phonon frequency ...
Far‐Infrared Spectrum and Hindering Potential of Deuterium Peroxide
(The American Institute of Physics, 1966-10-15)
The hindered‐rotation motion in the deuterium peroxide molecule is investigated through a study of the far‐infrared absorption of the vapor. A 1‐m focal‐length vacuum grating spectrometer was used to scan the region from ...
Propagation of Bragg‐Reflected Neutrons in Bounded Mosaic Crystals
(The American Institute of Physics, 1966-05)
The analysis of the multiple Bragg reflection of a neutron beam of finite size in a semi‐infinite mosaic crystal given in a recent paper by Werner and Arrott is generalized to include bounded crystals. The coupled differential ...
Experimental Characteristics of Crossed‐Field Space‐Charge Flows
(The American Institute of Physics, 1966-03-15)
An experimental method is described for determining the characteristics of space‐charge flow in crossed electric and magnetic fields. A beam‐intercepting system, which consists of a movable grid of wires biased at appropriate ...
PLASMA DENSITY MEASUREMENTS AT 100 KILOBARS OF PRESSURE
(The American Institute of Physics, 1966-04-15)
Compressible Low Reynolds Number Flow around a Sphere
(The American Institute of Physics, 1966-04)
The low Reynolds number flow past a sphere is studied for cases involving significant variation in density and temperature. An order of magnitude analysis of the governing equations for a continuum flow indicates the ...
Neutron Scattering in Stretch‐Oriented Polyethylene
(The American Institute of Physics, 1966-01-01)
Measurements on stretch‐oriented polyethylene held at 100°K have been undertaken in an attempt to clearly identify the frequency limit of the calculated stretch—bend acoustic mode. A simplified ``constant‐Q'' scattering ...
HOLOGRAMS WITH NONPSEUDOSCOPIC REAL IMAGES
(The American Institute of Physics, 1966-03-15)