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RISApplication of a Theoretical Framework for Understanding Sulfur Granule Formation during the Anaerobic Digestion Process
Publisher: ASCE
Abstract: This research applies a previously validated bioenergetics model to determine whether the formation of elemental sulfur (S0) from hydrogen sulfide is thermodynamically possible during the anaerobic digestion (AD) process. ...
On the Vibration of a Point-Supported Linear Distributed System
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The vibration of a constrained dynamical system, consisting of an Euler-Bernoulli beam with homogeneous boundary conditions, supported in its interior by arbitrarily located pin supports and ...
Estimating the Effect of Magnetite on Nitrogen and Phosphorus Removal Using Intervention Analysis
Publisher: ASCE
Abstract: This study investigated the effectiveness of magnetite as ballast material through a technology called BioMag in nitrogen and phosphorus removal and in processing peak flows at a wastewater treatment plant using data from ...
Isolated Resonance Captures and Resonance Capture Cascades Leading to Single- or Multi-Mode Passive Energy Pumping in Damped Coupled Oscillators
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: We examine passive energy pumping in a system of damped coupled oscillators. This is a one-way, passive and irreversible energy flow from a linear main system to a nonlinear attachment that ...
Separation of Traveling and Standing Waves in a Rigid-Walled Circular Duct Containing an Intermediate Impedance Discontinuity
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this paper, we study the phenomenon of separation of traveling and standing waves in a one-dimensional rigid-walled circular duct. The underlying mechanism for separation, mode complexity, is linear and introduced here ...
Experimental Testing and Numerical Simulation of a Six-Story Structure Incorporating Two-Degree-of-Freedom Nonlinear Energy Sink
Publisher: American Society of Civil Engineers
Abstract: The nonlinear energy sink (NES) is a fully passive attachment used to rapidly dissipate a significant portion of energy induced in a linear primary structure to which it is attached. In this study, the performance of a ...