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RISStudy of Flow in a Blanket Clarifier Using Computational Fluid Dynamics
Publisher: American Society of Civil Engineers
Abstract: This work simulated the flow pattern of the sludge blanket clarifier at the Bansin Water Treatment Plant, Taiwan by multiphase flow, three-dimensional analysis. The following three models were developed individually: ...
Breakage Characteristics and Crushing Mechanism of Cement Materials Using Point-Loading Tests and the Discrete-Element Method
Publisher: American Society of Civil Engineers
Abstract: A point-loading device was used to research the breakage characteristics of single particles and to study their crushing mechanism. A series of point-loading tests were completed on the basis of cement ellipsoid particles ...
Stress Field Analysis in Orthogonal Cutting Process Using Digital Image Correlation Technique
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Cutting stress field in machining process plays a significant role in the understanding of cutting mechanics and prediction of surface integrity, tool wear, and failure. It is in great need to get accurate and reliable ...
Probabilistic Machine-Learning Methods for Performance Prediction of Structure and Infrastructures through Natural Gradient Boosting
Publisher: ASCE
Abstract: The capabilities of data-driven models based on machine learning (ML) algorithms in offering accurate predictions of structural responses efficiently have been demonstrated in numerous recent studies. However, efforts to ...
Surface/Interface Effect on Dynamic Stress Around a Nanoinclusion in a Semi-Infinite Slab Under Shear Waves
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This work examines the surface/interface effect on the dynamic stress around a cylindrical nanoinclusion embedded in an elastic semi-infinite slab subjected to antiplane shear waves, and the ...
Mechanical Properties of Strongly Weathered Rock–Soil Mixtures with Different Rock Block Contents
Publisher: American Society of Civil Engineers
Abstract: Although soil–rock mixtures (S-RMs) exist extensively on Earth’s surface, their mechanical behaviors remain elusive. In this study, a series of large-scale direct-shear tests was conducted to investigate the mechanical ...
Optimal Train Skip-Stop Operation at Urban Rail Transit Transfer Stations for Nonrecurrent Extreme Passenger Flow Mitigation
Publisher: ASCE
Abstract: Urban rail transit transfer stations are key facilities for gathering and switching passenger flow. High passenger demand coupled with nonrecurrent events (e.g., train delays) may cause extreme passenger flow and ...
Storage Capacity and Slope Stability Analysis of Municipal Solid Waste Landfills
Publisher: American Society of Civil Engineers
Abstract: Landfill storage capacity and slope stability are among the most significant engineering concerns in municipal solid waste (MSW) landfill operation. Factors that affect the landfill storage capacity and slope stability are ...
Contact Overlap Calculation Algorithms and Benchmarks Based on Blocky Discrete-Element Method
Publisher: ASCE
Abstract: The mechanical response of granular materials has been investigated widely using discontinuous modeling, such as the discrete-element method (DEM). Contact detection and contact resolution have been critical issues when ...
Multivariate Design and Analysis of Aircraft Heat Exchanger Under Multiple Working Conditions Within Flight Envelope
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents a multi-condition design method for the aircraft heat exchanger (HEX), marking with lightweight, compactness, and wide range of working conditions. The quasi-traversal genetic algorithm (QT-GA) method ...