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Application of Cost Matrices and Cost Curves to Enhance Diagnostic Health Management Metrics for Gas Turbine Engines
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Statistically based metrics, incorporating operating costs, for gas turbine engine diagnostic systems are required to evaluate competing products fairly and to establish a convincing business case. ...
Bearing Capacity of Shallow Foundations on Sand: A Relative Density Approach
Publisher: American Society of Civil Engineers
Abstract: An accurate prediction of bearing capacity of shallow foundations on granular soils has been historically complicated by effects due to scale of the foundation. These effects are due to the nonlinear strength behavior of ...
Assessment and Characterization of Volcanic Ash Threat to Gas Turbine Engine Performance
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Multiple volcanoes erupt yearly propelling volcanic ash into the atmosphere and creating an aviation hazard. The plinian eruption type is most likely to create a significant aviation hazard. Plinian eruptions can eject ...
An Evaluation of Satellite Remote Sensing Data Products for Land Surface Hydrology: Atmospheric Infrared Sounder
Publisher: American Meteorological Society
Abstract: The skill of instantaneous Atmospheric Infrared Sounder (AIRS) retrieved near-surface meteorology, including surface skin temperature (Ts), air temperature (Ta), specific humidity (q), and relative humidity (RH), as well ...
Mechanical and Load-Settlement Characteristics of Two Lunar Soil Simulants
Publisher: American Society of Civil Engineers
Abstract: Recently, attention has been devoted to problems of construction of facilities on the lunar surface. Due to the unavailability of real lunar regolith, experimental studies have relied on the use of lunar soil simulants, ...
Diagnosing an Artificial Trend in NLDAS-2 Afternoon Precipitation
Publisher: American Meteorological Society
Abstract: hile investigating linkages between afternoon peak rainfall amount and land?atmosphere coupling strength, a statistically significant trend in phase 2 of the North American Land Data Assimilation System (NLDAS-2) warm ...
Observed Land–Atmosphere Coupling from Satellite Remote Sensing and Reanalysis
Publisher: American Meteorological Society
Abstract: he lack of observational data for use in evaluating the realism of model-based land?atmosphere feedback signal and strength has been deemed a major obstacle to future improvements to seasonal weather prediction by the ...
The Quasi-Two-Day Wave Event of January 1984 and Its Impact on the Mean Mesospheric Circulation
Publisher: American Meteorological Society
Abstract: Studies of the quasi-two-day wave show that it is a summertime phenomenon. In the summer of 1983?84 at Adelaide (35°S, 138°E), the main phase of the wave appeared as a pulse in mid-January which lasted about seven cycles ...
Pyrolysis-GC/FID Test for Biogenic Interference in Contaminated Soil
Publisher: American Society of Civil Engineers
Abstract: “Biogenic interference” is that portion of natural organic matter in soil that cannot be distinguished from petroleum in a standard test for contamination. Biogenic interference is normally a small fraction of total natural ...
A Preliminary Computer Pattern Analysis of Satellite Images of Mature Extratropical Cyclones
Publisher: American Meteorological Society
Abstract: This study has applied computerized pattern analysis techniques to the location and classification of feature of several mature extratropical cyclones that were depicted in GOES satellite images. These features include the ...
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