Author: Marvin S. Brooks
Publisher:
ISBN:
Category : Antimony compounds
Languages : en
Pages : 30
Book Description
Solid-liquid Phase Equilibrium in Binary Systems of Triphenyl Antimony with Biphenyl, Naphthalene, and Benzoic Acid
Author: Marvin S. Brooks
Publisher:
ISBN:
Category : Antimony compounds
Languages : en
Pages : 30
Book Description
Publisher:
ISBN:
Category : Antimony compounds
Languages : en
Pages : 30
Book Description
Production of H− (1s2) by Hydrogen Atom Collisions
Author: R. A. Mapleton
Publisher:
ISBN:
Category : Collisional excitation
Languages : en
Pages : 16
Book Description
The prior and post Born matrix elements are used to calculate the cross sections for H( - )(1s2) production in hydrogen atom collisions. In contrast to the original version of this work done by Mapleton in 1960, the plane wave approximation to the Coulomb function is partially corrected. The same H( - ) wave functions are used, and the post cross sections are substantially unaltered. Cross sections calculated with the improved H( - ) wave function as compared with the other H( - ) wave functions are from twenty to thirty-five per cent larger for the prior case and twenty to thirty per cent larger for the post case. The post-prior discrepancy, expressed as a ratio, varies between 0.001 and 0.33. (Author).
Publisher:
ISBN:
Category : Collisional excitation
Languages : en
Pages : 16
Book Description
The prior and post Born matrix elements are used to calculate the cross sections for H( - )(1s2) production in hydrogen atom collisions. In contrast to the original version of this work done by Mapleton in 1960, the plane wave approximation to the Coulomb function is partially corrected. The same H( - ) wave functions are used, and the post cross sections are substantially unaltered. Cross sections calculated with the improved H( - ) wave function as compared with the other H( - ) wave functions are from twenty to thirty-five per cent larger for the prior case and twenty to thirty per cent larger for the post case. The post-prior discrepancy, expressed as a ratio, varies between 0.001 and 0.33. (Author).
On Transient Wave Propagation in a Plasma
Author: Carl T. Case
Publisher:
ISBN:
Category : Electromagnetic waves
Languages : en
Pages : 14
Book Description
Publisher:
ISBN:
Category : Electromagnetic waves
Languages : en
Pages : 14
Book Description
Measurement Techniques in Clouds
Author: Donald R. Fitzgerald
Publisher:
ISBN:
Category : Atmospheric electricity
Languages : en
Pages : 28
Book Description
Publisher:
ISBN:
Category : Atmospheric electricity
Languages : en
Pages : 28
Book Description
On the Theory of Boolean Formulas
Author: Lorenzo Calabi
Publisher:
ISBN:
Category : Algebra, Boolean
Languages : en
Pages : 50
Book Description
Substitution operators for subformulas of Boolean formulas are introduced and investigated.
Publisher:
ISBN:
Category : Algebra, Boolean
Languages : en
Pages : 50
Book Description
Substitution operators for subformulas of Boolean formulas are introduced and investigated.
On the Resolving Power of Ground Mapping Radar Antennas
Author: J. F. McIlvenna
Publisher:
ISBN:
Category : Aerial photography
Languages : en
Pages : 66
Book Description
The mapping of extended, cultural ground targets by an airborne radar is examined using communication theory concepts including those of the antenna transfer function and the target spatial frequency spectrum. Use of the set of transfer functions that correspond to Taylor aperture distributions and specification of the targets directly in terms of their spatial frequency spectra, permits one to examine the antenna images for quality and resolution. The results obtained indicate that resolution for a class of ground targets can be much better than is predicted by the two-point Rayleigh resolution criterion. It is also true that there can be situations in which the shape of the antenna images are quite independent of the radiation pattern. Several types of spatial noise were also included in the input spectrum to investigate noise effects on image quality and resolution. (Author).
Publisher:
ISBN:
Category : Aerial photography
Languages : en
Pages : 66
Book Description
The mapping of extended, cultural ground targets by an airborne radar is examined using communication theory concepts including those of the antenna transfer function and the target spatial frequency spectrum. Use of the set of transfer functions that correspond to Taylor aperture distributions and specification of the targets directly in terms of their spatial frequency spectra, permits one to examine the antenna images for quality and resolution. The results obtained indicate that resolution for a class of ground targets can be much better than is predicted by the two-point Rayleigh resolution criterion. It is also true that there can be situations in which the shape of the antenna images are quite independent of the radiation pattern. Several types of spatial noise were also included in the input spectrum to investigate noise effects on image quality and resolution. (Author).
Electromagnetic Properties of a Plasma-covered Antenna
Author: Daniel J. Jacavanco
Publisher:
ISBN:
Category : Antennas, Horn
Languages : en
Pages : 22
Book Description
Antenna patterns (E-plane) of an X-band horn mounted in a ground plane and covered by a plasma slab were measured. A pulsed plasma was produced by capacitor discharge in a rectangular pyrex container of 6 in. x 2 in. x 24 in. i.d. Microwave interferometer measurements of the electron density were made at 9 and 35 Gc. Antenna patterns are presented which show a sharp decrease in radiated power at certain angles corresponding to the 'optics critical angle'. Good agreement is obtained for the movement of the optics critical angle with plasma density. (Author).
Publisher:
ISBN:
Category : Antennas, Horn
Languages : en
Pages : 22
Book Description
Antenna patterns (E-plane) of an X-band horn mounted in a ground plane and covered by a plasma slab were measured. A pulsed plasma was produced by capacitor discharge in a rectangular pyrex container of 6 in. x 2 in. x 24 in. i.d. Microwave interferometer measurements of the electron density were made at 9 and 35 Gc. Antenna patterns are presented which show a sharp decrease in radiated power at certain angles corresponding to the 'optics critical angle'. Good agreement is obtained for the movement of the optics critical angle with plasma density. (Author).
On the Acoustic Basis of the Perception of Intonation by Linguists
Author: Philip Lieberman
Publisher:
ISBN:
Category : Intonation (Phonetics)
Languages : en
Pages : 26
Book Description
Publisher:
ISBN:
Category : Intonation (Phonetics)
Languages : en
Pages : 26
Book Description
Phonon Generation by Stripe-domain Resonance in Permalloy Films
Author: Marden H. Seavey
Publisher:
ISBN:
Category : Acoustic paramagnetic resonance
Languages : en
Pages : 14
Book Description
Publisher:
ISBN:
Category : Acoustic paramagnetic resonance
Languages : en
Pages : 14
Book Description
Substituted Perinaphthenyl Anion Radicals
Author: Tapan K. Mukherjee
Publisher:
ISBN:
Category : Anions
Languages : en
Pages : 16
Book Description
Publisher:
ISBN:
Category : Anions
Languages : en
Pages : 16
Book Description