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RISOne to One Nonlinear Internal Resonance of Sensor Diaphragm Under Initial Tension
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this paper, investigations into the nonlinear asymmetric vibrations of a pressure sensor diaphragm under initial tension are presented. A comprehensive mechanics model based on a plate with inplane tension is presented ...
Upper Boundary Effects in a General Circulation Model
Publisher: American Meteorological Society
Abstract: The effects of an artificial upper boundary on the climate of a general circulation model are examined using two versions of the model. The complete model has 26 levels extending from the surface to 0.1 mb (?65 km) and the ...
Cluster Analysis of the Northern Hemisphere Wintertime 500-hPa Height Field: Spatial Patterns
Publisher: American Meteorological Society
Abstract: Hierarchical cluster analysis based on the method of Ward is performed on the Northern Hemisphere wintertime 10-day low-pass-filtered 500-hPa height field, using the NMC operational analyses for the period 1946?85. Input ...
Orthogonal Rotation of Spatial Patterns Derived from Singular Value Decomposition Analysis
Publisher: American Meteorological Society
Abstract: Singular value decomposition (SYD) analysis is frequently used to identify pairs of spatial patterns whose time series are characterized by maximum temporal covariance. It tends to compress complicated temporal covariance ...
Carbonation Curing of Precast Fly Ash Concrete
Publisher: American Society of Civil Engineers
Active Delayed Control of Turning and Milling Dynamics
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this paper, a novel controller is developed for control of turning and milling dynamics. The controller design benefits from the use of time-delays in controlling a dynamic system. The gains of the controller are ...
Stochastic Viscoelastic–Viscoplastic Response of Asphalt Mixture under Uniaxial Compression
Publisher: American Society of Civil Engineers
Abstract: The mechanical properties of asphalt mixture always exhibit large degrees of variability due to asphalt’s random internal structure. A stochastic constitutive model is proposed to describe the random mechanical response ...
Application of the Modified Goodman Model in Soil Nailing
Publisher: American Society of Civil Engineers
Abstract: Soil nailing is an in situ soil reinforcement technique used for enhancing the stability of slopes, retaining walls, and excavations. Nails work predominantly in tension, but may also work in bending and/or shear under ...
Modeling Pop Action Pressure Relief Valve as a Bistable Element
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: To overcome the shortcomings of traditional method for modeling pop action pressure relief valves (PAPRVs), a new method for modeling PAPRVs as a bistable element is proposed. The effects of the model’s main parameters ...
Effect of Curing Temperature on Hydration of Calcium Aluminate Cement–Calcium Sulfate–Limestone System
Publisher: American Society of Civil Engineers
Abstract: The effect of curing temperature on hydration of a ternary blend of calcium aluminate cement (CAC), calcium sulfate (C$), and limestone (Cc) was examined. Compressive strength was evaluated at 1, 7, and 28 days. ...