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RISPredictive Maintenance Using the Rotordynamic Model of a Hydraulic Turbine-Generator Rotor
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A use of rotordynamic models in predictive maintenance is described in which variables characterizing the state of a deterioration mechanism are determined from online measurements. These variables ...
Impacts of Ice Clouds on GPS Radio Occultation Measurements
Publisher: American Meteorological Society
Abstract: athematical solutions accounting for the effects of liquid and ice clouds on the propagation of the GPS radio signals are first derived. The percentage contribution of ice water content (IWC) to the total refractivity ...
Comparison of TC Temperature and Water Vapor Climatologies between the Atlantic and Pacific Oceans from GPS RO Observations
Publisher: American Meteorological Society
Abstract: AbstractTropical cyclone (TC) temperature and water vapor structures are essential atmospheric variables. In this study, global positioning system (GPS) radio occultation (RO) observations from the GPS RO mission named the ...
Investigations of Stochastic Layers in Nonlinear Dynamics
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The onset of a new resonance in the stochastic layer is predicted numerically through the maximum and minimum energy spectra when the energy jump in the spectra occurs. The incremental energy ...
Closure to “Discussion of ‘Natural Frequencies and Normal Modes of a Spinning Timoshenko Beam With General Boundary Conditions’” (1992, ASME J. Appl Mech., 59, p. 1046)
Publisher: The American Society of Mechanical Engineers (ASME)
Observed and Numerically Simulated Structure of a Mature Supercell Thunderstorm
Publisher: American Meteorological Society
Abstract: Through the interactive use of Doppler-radar analyses and a three-dimensional numerical storm simulation the detailed structure of a supercell, tornadic storm is analyzed. This storm, named the Del City storm, occurred in ...
Preliminary Results of Experiments with Symmetric Baroclinic Instabilities
Publisher: American Meteorological Society
Abstract: An experiment has been designed to test the predictions of nongeostrophic baroclinic stability theory. The apparatus is similar to the conventional rotating annulus experiments, except that the vertical temperature difference ...
Time, Angle and Range Averaging of Radar Echoes from Distributed Targets
Publisher: American Meteorological Society
Abstract: In radar meteorology, the average of the weather echo power is used in the computation of reflectivity, liquid water content, rainfall rate, etc. The uncertainty in measuring or estimating average weather echo power is ...
Atmospheric Boundary Layer and Oceanic Mixed Layer Observations in Hurricane Josephine Obtained from Air-Deployed Drifting Buoys and Research Aircraft
Publisher: American Meteorological Society
Abstract: Three drifting buoys were successfully air-dropped ahead of Hurricane Josephine. This deployment resulted in detailed simultaneous measurements of surface wind speed, surface pressure and subsurface ocean temperature during ...
The Morphology of Several Tornadic Storms on 20 May 1977
Publisher: American Meteorological Society
Abstract: Sixteen tornadic storms occurred in the afternoon and evening hours of 20 May 1977 and the early morning hours of 21 May 1977. Three storms, two of them tornadic, have been selected for detailed study. One of the tornadic ...