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RISAn Improvement in Forecasting Rapid Intensification of Typhoon Sinlaku (2008) Using Clear-Sky Full Spatial Resolution Advanced IR Soundings
Publisher: American Meteorological Society
Abstract: Hyperspectral infrared (IR) sounders, such as the Atmospheric Infrared Sounder (AIRS) and the Infrared Atmospheric Sounding Interferometer (IASI), provide unprecedented global atmospheric temperature and moisture soundings ...
Relationship between Porosity and the Constitutive Model Parameters of Rockfill Materials
Publisher: American Society of Civil Engineers
Abstract: In this study, triaxial tests are performed on rockfill material (weakly weathered fresh tuff) with different porosities in order to obtain the stress–strain curves of the test specimens. The confining pressure and porosity ...
Effects of Temperature on the Time-Varying Mesh Stiffness, Vibration Response, and Support Force of a Multi-Stage Planetary Gear
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The thermal deformation of gears will affect the vibration of the planetary system; this research mainly studied the effect of thermal conditions on planetary systems nonlinear vibration under the thermal equilibrium state. ...
Response Sensitivity and the Assessment of Nonlinear Vibration Using a Nonlinear Lateral–Torsional Coupling Model of Vehicle Transmission System
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The eigensensitivity analysis does not meet the increasing industrial requirements of the dynamic performance of a vehicle transmission system. To reduce vibration, it is necessary to include response sensitivity in the ...
Improved Analyses and Forecasts of Hurricane Ernesto’s Genesis Using Radio Occultation Data in an Ensemble Filter Assimilation System
Publisher: American Meteorological Society
Abstract: adio occultation (RO) refractivity observations provide information about tropospheric water vapor and temperature in all weather conditions. The impact of using RO refractivity observations on analyses and forecasts of ...
A Statistical Estimate of Errors in the Calculation of Radio-Occultation Bending Angles Caused by a 2D Approximation of Ray Tracing and the Assumption of Spherical Symmetry of the Atmosphere
Publisher: American Meteorological Society
Abstract: Atmospheric data from National Centers for Environmental Prediction (NCEP) analyses and orbital parameters from 133 real Global Positioning System (GPS) meteorological data soundings are used to compute the ?true? bending ...
Prognostics of Gear Manufacturing Errors for Planetary Gear Systems Based on Power Flow Theory
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Gear manufacturing errors are key parameters in planetary gear trains and have effects on load sharing, tooth stress, and so on. Accurate estimation of manufacturing errors can help monitor the conditions of planetary gear ...
Redesign of Axial Fan Using Viscous Inverse Design Method Based on Boundary Vorticity Flux Diagnosis
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The inverse design method for turbomachinery can directly acquire a blade geometry with specific aerodynamic parameters, such as pressure loading on the blade surfaces. The difference between the inverse design and direct ...
Controlled SSCI With Moderate End Gas Auto Ignition for Fuel Economy Improvement and Knock Suppression
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Hybrid combustion mode including flame propagation induced by spark ignition (SI) and autoignition could be an effective method to improve fuel economy and suppress engine knock simultaneously. An experimental research on ...
Importance of Forecast Error Multivariate Correlations in Idealized Assimilations of GPS Radio Occultation Data with the Ensemble Adjustment Filter
Publisher: American Meteorological Society
Abstract: The importance of multivariate forecast error correlations between specific humidity, temperature, and surface pressure in perfect model assimilations of Global Positioning System radio occultation (RO) refractivity data ...