TABLE OF CONTENTS
Personnel
vii
Publications and Reports
xv
Introduction
xix
GENERAL PHYSICS
I.
Molecular Beams
1
In Situ Measurements of Vapor Pressure above Submonolayer
Helium Films on an Argon-coated Substrate
Measurement of He3-He
Temperatures
3
and He4-He
4
Cross Section at Low
8
Investigation of Mobility of Submonolayer Helium
by Atomic-Beam Techniques
Evaporation of Neutral Atoms
Heat Pulses
Films
13
from He II Stimulated by
20
Detection of a Quantized Vortex Line at a Known Location
28
Scanning Water Molecular Microscope
30
Desorption Heat Pulse Propagation
35
New Method for Studying Water
Membranes
II.
Transport in
Biological
40
Microwave Spectroscopy
45
Fluctuation Effects in Superconducting Films
III.
IV.
46
Atomic Resonance and Scattering
55
Nuclear Mass Correction to the Bound Electron g-Factor
56
Molecular-Beam Studies of van der Waals Molecules:
CsHg System
The
62
Molecular-Beam Studies of van der Waals Molecules:
Apparatus
New
66
Spin-Exchange Scattering
67
Nonradiating Excited Complexes
70
Radio Astronomy
73
Observations of Recombination Lines at Ku-band
Radiometer System for Ground-based
Upper Atmospheric Temperatures
V.
Measurement
74
of
76
Continuum Radio Structure of the Galactic Disk
80
Absolute Radio Brightness Temperatures in the Southern Sky
82
Stellar Interferometer
84
Solid-State Microwave Electronics
Peak-Locking Approach for Stabilization of High-Resolution
Mass Spectrometer
QPR No.
1
104
iii
89
89
CONTENTS
VI.
Cooperative Phenomena in Solids and Fluids
97
VII.
Gravitation Research
99
VIII.
Magnetic Resonance
101
Proton-Enhanced Nuclear Induction Spectroscopy
IX.
X.
XI.
Physical Electronics and Surface Physics
105
Measurements of the Speed and Spatial Distributions of Arsenic
Molecules Evaporated from an As(l11)
Crystal
107
Effect of Oxygen Adsorption on the Scattering of Helium and
Argon Atoms from a W(112) Crystal
110
Physical Acoustics
119
On the Propagation of Sound in a Duct with Flow
119
Bragg Diffraction in Lanthanum Flint Glass
128
Electrodynamics of Media
133
Input Power, Gain, and Output of a Transeversely Excited
Atmospheric (TEA) CO 2 Laser
XII.
101
Laser Applications
135
139
High-Resolution Laser-Excited Spectrum of 12 Molecular Beam
140
Two-Dimensional Laser Doppler Velocimeter for Fluid Flow
142
Closed-Loop, Real-Time Holographic Interferometry
145
PLASMA DYNAMICS
XIII.
149
Plasmas and Controlled Nuclear Fusion
149
Waves and Radiation
Bremsstrahlung Instability in a Plasma,
Electron Streaming
Induced by
Steady-State Linear Multipole (SLIM-1)
149
161
Diffusion and Turbulence
166
Plasma Diagnostics
168
Fusion-Related Studies
169
Feedback Stabilization
170
Preliminary Investigation of Plasma Injection Techniques
170
Energy Considerations Relevant to Kink Modes and to Their
Feedback Control
172
High-Temperature Plasma Physics
QPR No. 104
186
CONTENTS
XIV.
Gaseous Electronics
189
XV.
Relativistic Beams
191
Preliminary Diagnostics of the Coaxial Generator System
Cogen III
XVI.
Applied Plasma Research
Active Plasma Systems
191
195
195
Observation of Wave Propagation in a Magnetized Plasma
near the Lower Hybrid Resonance
196
Warm-Plasma Effects on Resonance Cone Structure
201
Properties of Plasma Columns Created by Cylindrical
Microwave Structures
205
Energy Recovery from Plasma Streams by a Decelerating
Wave
205
Plasma Physics and Engineering
215
Plasma Effects in Solids
217
Surface Acoustoelectric Current and Surface Mobility
of Electrons
217
COMMUNICATION SCIENCES AND ENGINEERING
XVII.
Processing and Transmission of Information
225
XVIII.
Detection and Estimation Theory
229
XIX.
Speech Communication
231
XX.
XXI.
Analysis of Vocal-Tract X-rays Using Interactive Computer
Graphics
232
An Application of the Cepstrum as a Measure of the Amplitude
of a Signal
240
Synthesis of Sung Vowels
243
Linguistics
249
On the Formalization of Infinite Sets of Phonological Rules
250
A Transformational Rule in Russian Phonology
256
Lexical and Inferred Meanings for Some Time Adverbs
260
Cognitive Information Processing
269
Scanning with a Moving Mirror
274
A Noise Model for Video Preamplifiers
278
Generation of Minimum-Phase Pictures
283
Ultrasonic Systems for Medical Diagnostic Visualization
289
QPR No. 104
CONTENTS
XXII.
Communications Biophysics
307
Structure and Motion of Cupulae of Lateral-Line
in Necturus Maculosus:
I.
Organs
Introduction
326
Structure and Motion of Cupulae of Lateral-Line Organs
in Necturus Maculosus: II. Observations of Cupular
Structure
330
Structure and Motion of Cupulae of Lateral-Line Organs
In Necturus Maculosus: III. A Technique for Measuring
the Motion of Freestanding Lateral-Line Cupulae
332
Structure and Motion of Cupulae of Lateral-Line Organs
in Necturus Maculosus: IV. Preliminary Model for the
Dynamic Response of the Freestanding Lateral-Line
Cupula Based on Measurements of Cupula Stiffness
336
XXIII.
Neurophysiology
345
XXIV.
Signal Processing
349
Model for Low-Frequency Atmospheric Noise
351
Musical Timbre Recognition Based on a Model of the
Auditory System
362
Author Index
QPR No. 104
367