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RISFace Stability Evaluation of a TBM-Driven Tunnel in Heterogeneous Soil Using a Probabilistic Approach
Publisher: American Society of Civil Engineers
Abstract: The stability condition of the tunnel face is of great importance in both conventional and modern [tunnel-boring machine (TBM)] methods of construction. Inadequate and excessive amounts of support pressure toward the face ...
Electrode Design for Thermal and Nonthermal Plasma Discharge Inside a Constant Volume Combustion Chamber
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Previous methods of achieving ignition in the Plasma, Combustion and Fluid imaging (PCFi) Laboratory’s Constant Volume Combustion Chamber (CVCC) utilizes either a standard or modified spark plug. The standard spark plug ...
An Experimental Study on the Influence of Vortex Generators on the Shock-Induced Boundary Layer Separation at M=1.4
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The results of an investigation into the effects that sub-boundary layer vortex generators (SBVGs) have on reducing normal shock-induced turbulent boundary layer separation are presented. The ...
The Possible Motions of a Rigid Body With One Fixed Point
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A recently developed theory is used to establish criteria for determining regions of possible motions in a reduced configuration space for a rigid body having one fixed point. Such regions are ...
Stability Analysis of Nonlinear Dynamic Systems by Nonlinear Takagi–Sugeno–Kang Fuzzy Systems
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper proposes a systematic procedure to address the limit cycle prediction of a Nonlinear Takagi–Sugeno–Kang (NTSK) fuzzy control system with adjustable parameters. NTSK fuzzy can be linearized by describing ...
Inception Point of Air Entrainment and Training Wall Characteristics of Baffles and Sills on Stepped Spillways
Publisher: American Society of Civil Engineers
Abstract: An experimental study of new proposed stepped-spillway configurations using sills or baffles on the step treads with sharp or rounded brinks is introduced to investigate the location of and the flow depth at inception point ...
Forced Hydraulic Jumps below Abrupt Expansions
Publisher: American Society of Civil Engineers
Abstract: A new approach for studying forced hydraulic jumps below abrupt symmetric and asymmetric expansions is introduced. Intensive experiments for two expansion ratios, one asymmetry ratio, and different solid sill heights and ...
Numerical Investigation of Forced Convective Heat Transfer Around and Through a Porous Circular Cylinder With Internal Heat Generation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this study, convective heat transfer around and through a porous circular cylinder together with internal heat generation has been investigated numerically. Governing equations containing ...
Understanding the Effect of Oxygenated Additives on Combustion Characteristics of Gasoline
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Laminar burning speed and ignition delay time behavior of iso-octane at the presence of two different biofuels, ethanol and 2,5 dimethyl furan (DMF), was studied in this work. Biofuels are considered as a better alternative ...
Innovation Management and Construction Phases in Infrastructure Projects
Publisher: American Society of Civil Engineers
Abstract: An innovation management approach for construction projects should take into account the opportunities that different phases of construction create for innovation. This research demonstrates how innovation behavior changes ...