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RISImpact of Desert Environment on the Genesis of African Wave Disturbances
Publisher: American Meteorological Society
Abstract: During summer the meteorological conditions in the lower troposphere between the anticyclonic-shear (north) side and cyclonic-shear side of the midtropospheric easterly jet over North Africa are rather different. A significant ...
Three-Variance Approach for Updating Earned Value Management
Publisher: American Society of Civil Engineers
Abstract: The project management triad consists of scope, time, and cost. In this study, the schedule variance and schedule performance index, in traditional two-variance earned value management (EVM), are proven not proper time ...
Damage Detection of Seismically Excited Buildings Based on Prediction Errors
Publisher: American Society of Civil Engineers
Abstract: Buildings may suffer serious damage when subjected to extreme loadings such as strong winds and earthquakes. In seismic events, the error time histories between measured and estimated responses should contain the information ...
Numerical Study of an AMTEX'75 Oceanic Cyclone
Publisher: American Meteorological Society
Abstract: The diabatic effects of latent heat release, boundary layer moisture and heat flux from the ocean surface and large-scale forcing due to upper-level systems are three physical processes affecting oceanic cyclogenesis. ...
Synoptic Study of a Medium-Scale Oceanic Cyclone during AMTEX '75
Publisher: American Meteorological Society
Abstract: A severe extratropical cyclcone was initiated from a low-level medium-scale cyclone over the ocean northeast of Taiwan during the initial phase of the AMTEX '75. The analyses of Soliz and Fein were used to examine the time ...
Development of a High Cycle Fatigue Life Prediction Model for Thin Film Silicon Structures
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The fatigue characteristics of microelectromechanical systems (MEMS) material, such as silicon or polysilicon, have become very important. Many studies have focused on this topic, but none have defined a good methodology ...
Modeling and Analysis of Forces in Laser Assisted Micro Milling
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Laser assisted micro milling (LAMM) is capable of generating three dimensional microscale features in hard metals with lower cutting forces than conventional micro milling. To maximize the reduction in cutting forces, a ...
Transmission Loss and Dynamic Response of Hierarchical Membrane-Type Acoustic Metamaterials
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A deployment-scale array of locally resonant membrane-type acoustic metamaterials (MAMs) is fabricated. The acoustic performance of the array is measured in a transmission loss chamber, and a complex interaction between ...
Analytical Model for Low-Frequency Transmission Loss Calculation of Zero-Prestressed Plates With Arbitrary Mass Loading
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: As the importance of sound attenuation through weight-critical structures has grown and mass law based strategies have proven impractical, engineers have pursued alternative approaches for sound attenuation. Membrane-type ...
Combined Effects of Citric Acid and Ascorbic Acid Used As Low-Temperature Surface Modifiers to Enhance the Cyclability of Si Anode in an Li-Ion Battery
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: We successfully achieved surface modification of Si at a low temperature (150 °C) by using citric acid and ascorbic acid as surface modifiers and enhanced the electrochemical performance of a Si-based anode. A simple ...