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Asymptotic Theory of Broadband Rotor Thrust, Part I: Manipulations of Flow Probabilities for a High Number of Blades
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Modern computer predictions of the frequency spectrum of net thrust for a rotor in turbulent flow display a number of features that call for interpretation. The success of the asymptotic ...
Asymptotic Theory of Broadband Rotor Thrust, Part II: Analysis of the Right Frequency Shift of the Maximum Response
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: One of the more intriguing features observed in rigorously computed frequency spectra of the random thrust on a turbulence-ingesting rotor is a shift of the broad peaks, or “haystacks,” to ...
Gamma Rays as Modifiers of the Compressive and Flexural Properties of Polyester Polymer Concrete
Publisher: American Society of Civil Engineers
Abstract: To improve the mechanical and thermal properties of materials, alternative posttreatments have been proposed. One of these posttreatments is based on the use of ionizing radiation. This work studied the effects of gamma ...
Methodological Contribution of K. W. Johansen to Structural Analysis of Long Cylindrical Roof Shells: Beam Method
Publisher: American Society of Civil Engineers
Abstract: Evaluating the state of stress of a cylindrical shell based on elastic analysis originally involved a series of hypotheses concerning the conditions around it and the structural material used. All of these hypotheses ...
Monte Carlo Investigation of Particle Properties Affecting TPB Formation and Conductivity in Composite Solid Oxide Fuel Cell Electrode-Electrolyte Interfaces
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A previously developed microstructure model of a solid oxide fuel cell (SOFC) electrode-electrolyte interface has been applied to study the impacts of particle properties on these interfaces ...
Quantifying the Economy of Water Supply Looped Networks
Publisher: American Society of Civil Engineers
Abstract: The economic advantages of a looped network have not been explicitly considered in the objective function of optimization models found in the literature. This paper introduces a new formulation and methodology in an attempt ...
Discussion of “Optimization of Water Distribution Networks Using Integer Linear Programming” by Hossein M. V. Samani and Alireza Mottaghi
Publisher: American Society of Civil Engineers
Micromechanical Analysis of the Shear Behavior of a Granular Material
Publisher: American Society of Civil Engineers
Abstract: A distinct element analysis of the behavior of a granular material was performed by simulating direct shear tests of a dense and a loose 2D sample of 1,050 cylinders. Macroscopic results exhibit typical features of the ...
Water Use Efficiency of Surface Drip Irrigation versus an Alternative Subsurface Drip Irrigation Method
Publisher: American Society of Civil Engineers
Abstract: In semiarid regions where water resources are scarce, irrigation water use efficiency is an important issue. Although subsurface drip irrigation is a very efficient irrigation method, it has had relatively limited expansion ...
Methodology for Conducting Discrete-Event Simulation Studies in Construction Engineering and Management
Publisher: American Society of Civil Engineers
Abstract: This paper suggests the methodology to follow when conducting discrete-event simulation (DES) studies in construction engineering and management research. Emphasis is made on the steps that, due to the uniqueness of the ...