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RISModeling Bed-Load Transport by a Three-State Continuous-Time Markov Chain Model
Publisher: American Society of Civil Engineers
Abstract: A three-state continuous-time Markov chain is proposed to model the movement of sediment particles across three different states, i.e., bed material, bed load, and suspended load layer. The proposed model incorporates an ...
Structural Damage Diagnosis Based on the Temporal Moment of Partially Measured Structural Responses
Publisher: ASCE
Abstract: Structural damage diagnosis is still a challenging task because most current methods are either insensitive to local structural damage or sensitive to measurement noise. A statistical moment–based structural damage detection ...
Identifying Distributed Dynamic Loading in One Spatial Dimension Based on Combing Wavelet Decomposition and Kalman Filter with Unknown Input
Publisher: ASCE
Abstract: The identification of distributed dynamic loads is an important but challenging task because a distributed dynamic load is composed of both time and space functions. This paper proposes a novel method for the identification ...
Identification of Distributed Dynamic Loads in Gradually Varying Two Spatial Dimensions Based on Discrete Cosine Transform and Kalman Filter with Unknown Inputs
Publisher: ASCE
Abstract: The identification of two-dimension distributed dynamic loads using partial structural responses is still challenging. In this paper, a method is proposed to identify the gradually varying spatial distribution functions ...
Microstructural Analysis of Corrosion Products of Steel Rebar in Coral Aggregate Seawater Concrete
Publisher: ASCE
Abstract: To explore the formation of corrosion products of steel bars in coral aggregate seawater concrete (CASC), this study used X-ray powder diffraction (XRD) to examine the ingredients of corrosion products of CASC steel bar, ...
Hemodynamics of an End-to-Side Anastomotic Graft for a Pulsatile Pediatric Ventricular Assist Device
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Numerical simulations are performed to investigate the flow within the end-to-side proximal anastomosis of a pulsatile pediatric ventricular assist device (PVAD) to an aorta. The anastomotic model ...
Numerical Study of Blood Flow at the End-to-Side Anastomosis of a Left Ventricular Assist Device for Adult Patients
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: We use an implicit large eddy simulation (ILES) method based on a finite volume approach to capture the turbulence in the anastomoses of a left ventricular assist device (LVAD) to the aorta. ...
Simulation-Based Study on a Lane-Based Signal System for Merge Control at Freeway Work Zones
Publisher: American Society of Civil Engineers
Abstract: This paper presents a new lane-based signal merge (LBSM) control system for freeway work zone operations. The proposed system applies the signal control concept to regulate the vehicles passing the work zone area at a ...
Time-Varying System Identification of Precast Segmental Columns Subjected to Seismic Excitations
Publisher: ASCE
Abstract: Precast segmental columns, as one structures, have attracted increasing attention in bridge and building construction. To understand the performance and dynamic characteristics of precast segmental columns subjected to ...
Corrosion Resistance of Magnesium Ammonium Phosphate Cement-Based Coatings Modified by Calcium Sulfoaluminate Cement on Carbon Steel in a Saline Medium
Publisher: ASCE
Abstract: Calcium sulfoaluminate (CSA) cement was used as an internal admixture to replace some of the magnesium oxide (MgO) in magnesium ammonium phosphate cement (MAPC) coatings. This experiment resulted in improved corrosion ...