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RISMolecular Orientation of Polymer Lubricant Films: Its Tribological Consequence
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The objective of this paper is to demonstrate, from experiments and modeling, how and why molecular orientation of functional end groups of perfluoro-polyether (PFPE) lubricants play an important ...
Flying Stiction, Lubricant Pick-Up and Carbon-Overcoat Wear of Magnetic Heads
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Flying stiction, a high static friction force resulting from a magnetic head seeking/flying over a disk surface, has posed a new challenge in magnetic-disk tribology for low flying heights (̃30 ...
Experimental and Theoretical Research on the Anisotropic Deformation and Energy Evolution Characteristics of Shale under Uniaxial Cyclic Loading and Unloading
Publisher: ASCE
Abstract: Shale is often encountered during rock engineering. The inherent anisotropy of shale and the loading and unloading path affect the failure characteristics of this material. In this study, shale specimens with seven different ...
Moisture Effects Including Stiction Resulting From Adsorbed Water Films
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Stiction resulting from moisture effects at small elastic contact spots has been identified and studied using bundles of fine, gold-plated copper fibers sliding on a gold-plated copper surface. ...
Meniscus Forces and Profiles: Theory and Its Applications to Liquid-Mediated Interfaces
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A theory for obtaining meniscus forces and profiles for any given liquid-mediated interface is presented that includes the effects of surface interactions, adsorption and evaporation of liquid ...
Effects of Biochar and Residual Plastic Film on Soil Properties and Root of Flue-Cured Tobacco
Publisher: ASCE
Abstract: Plastic film mulching in the field changes the soil structure and the normal distribution of soil water. Residual plastic film (RPF) in the soil causes serious environmental problems to the agricultural ecosystem. In order ...
Maximum Superstructure Response of Sliding-Base Structures under Earthquake Excitation
Publisher: ASCE
Abstract: Sliding-base (SB) systems are efficient for protecting low-rise buildings in high-seismicity rural areas. The normalized peak pseudoacceleration (NPPA) of one-story SB structures under three-component earthquake excitation ...
Effect of Internal Curing with Superabsorbent Polymers on the Compressive Strength and Shrinkage of Concrete with Natural Volcanic Ash
Publisher: ASCE
Abstract: The abundant natural volcanic ash (NVA) in East Africa is a prospective supplementary cementitious material that may be used to produce green and economical railway concrete. To mitigate the shrinkage of concrete with NVA, ...
Quantitative Assessment and Optimized Utilization of Soundless Cracking Demolition Agent for Fragmentations of Basalt Fiber–Reinforced Concrete
Publisher: American Society of Civil Engineers
Abstract: The soundless cracking demolition agent (SCDA) technique provides an environmentally friendly approach for demolishing brittle structures. An integration of experimental and numerical approaches was adopted to explore an ...
Peak Sliding Displacements of Sliding Base Structures Subjected to Earthquake Excitation
Publisher: ASCE
Abstract: Sliding base (SB) systems are attractive options for protecting low-rise buildings in high-seismicity undeveloped rural areas. This study focuses on the peak sliding displacements (PSDs) of SB structures subjected to ...