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RISInvestigating the Effects of Long-Term Sorption of Chlorinated Volatile Organic Compounds into Sandy Soils on the Difficulty of Desorption
Publisher: ASCE
Abstract: Soil contamination by chlorinated volatile organic compounds (CVOCs) such as tetrachloroethene (PCE), trichloroethene (TCE), and cis-1,2-dichloroethene (cDCE) has become apparent. When the contamination period increases, ...
Sediment Wash-Off from an Impervious Urban Land Surface
Publisher: American Society of Civil Engineers
Abstract: Sediment wash-off from impervious land is believed to be related to various factors including sediment buildup, rainfall intensity, rainfall energy, runoff rate, sediment sizes, and land surface characteristics. Most ...
Application of Proper Orthogonal Decomposition Method in Wind Field Simulation for Roof Structures
Publisher: American Society of Civil Engineers
Abstract: The weighted-amplitude wave superposition method and the proper orthogonal decomposition (POD) technique are first introduced. Then the POD technique combined with a wind field reconstruction method for a flat roof is ...
A Modified Endurance Time Analysis Algorithm to Correct Duration Effects for a Concrete Gravity Dam
Publisher: ASCE
Abstract: Durations are defined as an essential component of the three primary characteristics of strong earthquakes, which exhibit a remarkable influence on the damage characteristics of a concrete dam body. However, when considering ...
Mitigating Fatigue in Tunnel Construction through Illumination: Evidence from Virtual Reality
Publisher: American Society of Civil Engineers
Abstract: Tunnel construction is crucial to the advancement of global transportation networks. Despite their importance, there have been few investigations on the safety and comfort of workers. Tunnel workers operate under various ...
Time-Dependent Reliability Estimation for Dynamic Problems Using a Niching Genetic Algorithm
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A time-dependent reliability analysis method is presented for dynamic systems under uncertainty using a niching genetic algorithm (GA). The system response is modeled as a parametric random ...
Dynamic Vehicle Element Method for Transient Response of Coupled Vehicle-Structure Systems
Publisher: American Society of Civil Engineers
Abstract: In this paper, the dynamic vehicle element (DVE) method is developed to solve the transient response of a vehicle–structure interaction system in time domain. The DVE method treats the vehicle as a moving part of the entire ...
Improved Operational Performance Assessment for Two-Lane Highway Facilities
Publisher: American Society of Civil Engineers
Abstract: Historically, two-lane highways served primarily as uninterrupted flow connectors between major population centers. Increasingly, however, population growth in areas between the major population centers along these highways ...
The Tribological Study of Novel Benzotriazolyl-Containing Anticorrosive Polysulfides in Rapeseed Oil
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Two novel benzotriazolyl-containing polysulfides were synthesized as a part of the efforts of molecular design. The tribological properties of the synthetic products as additives in rapeseed oil ...
Vehicle-Induced Floor Vibrations in a Multistory Factory Building
Publisher: American Society of Civil Engineers
Abstract: A multistory factory building with elevated access allows loading and unloading of the raw materials and finished products right in front of each factory unit. This enhances the land productivity of land-scarce Singapore. ...