Broadband modeling of local earthquakes [PDF]
Three-component broadband waveforms of two small earthquakes near Upland, California, recorded on the Pasadena broadband, high dynamic range instrument, were modeled to obtain useful Green's functions for this path and to examine the sensitivity of the ...
Dreger, Douglas S. +1 more
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Electromagnetic Wave Theory and Applications [PDF]
Contains reports on eleven research projects.Joint Services Electronics Program (Contract DAAG29-83-K-0003)Joint Services Electronics Program (Contract DAAL03-86-K-0002)National Science Foundation (Grant ECS82-03390)National Science Foundation (Grant ...
Bourgeaud, Maurice +13 more
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Estimates of regional and local strong motions during the great 1923 Kanto, Japan, earthquake (Ms 8.2). Part 1: Source estimation of a calibration event and modeling of wave propagation paths [PDF]
This article is the first of a pair of articles that estimate regional and local strong motions from the 1923 Kanto, Japan, earthquake. This Ms 8.2 earthquake caused the most devastating damage in the metropolitan area in Tokyo history.
Graves, Robert W. +4 more
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Predictability of strong ground motion in the Imperial Valley: Modeling the M4.9, November 4, 1976 Brawley earthquake [PDF]
Strong-motion displacements, recorded at 33 km (IVC) and 36 km (ELC) from the November 4, 1976 Brawley earthquake, are modeled using the Cagniard-deHoop technique.
Heaton, Thomas H., Helmberger, Donald V.
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Ice/frost detection using millimeter wave radiometry [PDF]
A series of ice detection tests was performed on the shuttle external tank (ET) and on ET target samples using a 35/95 GHz instrumentation radiometer.
Davis, A. R. +3 more
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Approximation of Rupture Directivity in Regional Phases Using Upgoing and Downgoing Wave Fields [PDF]
Recent broadband modeling of regional events suggests that vertical directivity is particularly important at high frequency. Conventionally, such directivity is obtained by summing a grid of point sources.
Helmberger, D. V., Saikia, Chandan K.
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Noncollinearity-modulated electronic properties of the monolayer CrI$_3$
Introducing noncollinear magnetization into a monolayer CrI$_3$ is proposed to be an effective approach to modulate the local electronic properties of the two-dimensional (2D) magnetic material. Using first-principles calculation, we illustrate that both
Liu, Qian +6 more
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Faulting process of the May 17, 1976 Gazli, USSR earthquake [PDF]
The May 17, 1976 Gazli earthquake (m_b = 6.2, M_s = 7.0) has both seismological and engineering importance. Waveform modeling of long-period IDA Rayleigh waves, and WWSSN long- and short-period body waves indicates a thrust mechanism with strike N40°E ...
Hartzell, Stephen
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Unusual spacecraft materials [PDF]
For particularly innovative space exploration missions, unusual requirements are levied on the structural components of the spacecraft. In many cases, the preferred solution is the utilization of unusual materials.
Post, Jonathan V.
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MECA Workshop on Atmospheric H2O Observations of Earth and Mars. Physical Processes, Measurements and Interpretations [PDF]
The workshop was held to discuss a variety of questions related to the detection and cycling of atmospheric water. Among the questions addressed were: what factors govern the storage and exchange of water between planetary surfaces and atmospheres; what
Clifford, Stephen M., Haberle, Robert M.
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