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RISA Study on Gas–Liquid Film Thicknesses and Heat Transfer Characteristics of Vapor–Gas Condensation Outside a Horizontal Tube
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Noncondensable gases deteriorate heat transfer in the condensation process. It is therefore necessary to study vapor–gas condensation heat transfer process and analyze main factors influencing the process. Based on the ...
Positive Finite Time Stabilization for Discrete Time Linear Systems
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this paper, a new finitetime stability (FTS) concept, which is defined as positive FTS (PFTS), is introduced into discretetime linear systems. Differently from previous FTSrelated papers, the initial state as well as ...
Study of Wet Friction Material Test Under Severe Thermal and Mechanical Loading (“Bump Test”)
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: One of the fatigue tests used for friction materials is the so called “bump test”. In this test, one of the reaction disks in a pack of disks has machined bumps across the contact surface. ...
Admissible Finite Time Stability and Stabilization of Uncertain Discrete Singular Systems
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The problems of admissible finitetime stability (AFTS) and admissible finitetime stabilization for a class of uncertain discrete singular systems are addressed in this study. The definition of AFTS is first given. Second, ...
Wall Heat Transfer Characteristic of Parallel-Plate Channel Filled With Open-Cell Metal Foams in Large Flow Velocity Range
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: High-porosity open-cell metal foams can be utilized to fill parallel-plate channels for achieving efficient cooling performance. A wall heat transfer model considering viscous and inertial heat effects is given based on ...
Prediction of Cavitation Damage for Spillways
Publisher: American Society of Civil Engineers
Abstract: Cavitation damage on a spillway is a very complex process. Although much research about cavitation and the resulting damage has been conducted for more than 30 years, existing methods for predicting cavitation damage on ...
Nanoparticle Additive Manufacturing of Ni-H13 Steel Injection Molds
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper reports a novel solid freeform fabrication process, Nanoparticle Additive Manufacturing (NAM), for dispersing nanoparticles into molten matrix for improved mechanical properties. In ...
Gradient-Enhanced Hierarchical Kriging Model for Aerodynamic Design Optimization
Publisher: American Society of Civil Engineers
Abstract: A cokriging model incorporating gradient information and the function value of sample points can reduce the computational cost with a given level of accuracy. In this paper, the hierarchical kriging, a recently proposed ...
Rapid Production of Carbon Nanotubes by High-Power Laser Ablation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Carbon nanotubes were synthesized in an atmospheric chamber by irradiating a metal-catalyst containing graphite target with a 2 kW continuous wave CO2 laser and capturing the soot in flowing ...
Experimental Study on the Performance of a Sand Filtration Method and Device by Using Natural Soils and Subsurface PVC Drainage Pipes
Publisher: ASCE
Abstract: Drip irrigation is an efficient water-saving irrigation technique. However, the clogging of emitters is a major problem for drip irrigation systems that adversely affects the uniformity of water distribution and lowers the ...