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RISLeg Joint Stiffness Affects Dynamics of Backward Falling From Standing Height: A Simulation Work
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Falling backward can lead to injuries including hip fracture, back injury, and traumatic brain impact among older adults. A loss of consciousness is associated with falling backward and accounts for about 13% of all falls ...
Study of Stability of Surrounding Rock due to the Approach of Two Excavation Faces and Face Reinforcement in a Large Cross-Section Tunnel in Weak Stratum
Publisher: American Society of Civil Engineers
Abstract: When the two excavation faces of a tunnel constructed from both the entrance and exit simultaneously in soft surrounding rock approach, the excavation surface disturbance areas are superimposed, stress and deformation in ...
Parameter Study of Three-Dimensional Printing Graphene Oxide Based on Directional Freezing
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Graphene is one of the most promising carbon nanomaterial due to its excellent electrical, thermal, optical, and mechanical properties. However, it is still very challenging to unlock its exotic properties and widely adopt ...
Structures and Northward Propagation of the Quasi-Biweekly Oscillation in the Western North Pacific
Publisher: American Meteorological Society
Abstract: This study investigates the northward-propagating quasi-biweekly oscillation (QBWO) in the western North Pacific by examining the composite meridional structures. Using newly released reanalysis and remote sensing data, ...
Upper-Bound Finite-Element Analysis of Characteristics of Critical Settlement Induced by Tunneling in Undrained Clay
Publisher: American Society of Civil Engineers
Abstract: An interesting operation has been developed to estimate the critical normalized surface settlement for shallow tunnels in undrained clay (idealized as a homogeneously Tresca material). The upper-bound finite-element method ...
Material Removal Behavior of Ultrasonic Vibration Helical Grinding of SiCf/SiC Composites
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: To reveal the material removal mechanism of silicon carbide fiber reinforced silicon carbide ceramic matrix (SiCf/SiC) composites during the ultrasonic vibration helical grinding (UVHG) of hole-making process, a hole-making ...
Femtosecond Laser Two-Step Rotary Drilling Method for SiCf/SiC Composites
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A femtosecond laser method for high-quality and high-efficiency micro-hole fabrication of SiCf/SiC composites is proposed for this difficult-to-machine material. The influence of optical wedge parameters in the femtosecond ...
Cracking Performance of an Operational Tunnel Lining Due to Local Construction Defects
Publisher: American Society of Civil Engineers
Abstract: Local defects, such as surround cavities and insufficient thickness of the tunnel lining due to imperfect construction, will lead to local discontinuity in the ground–lining interaction. This study investigated the mechanical ...
Research on Ground Penetrating Radar (GPR) Exploration on Subgrade Failure Based on Spectrum Profile
Publisher: American Society of Civil Engineers
Abstract: Subgrade failure is relative to spectrum signal received by ground penetrating radar. For the practical exploring demand of Beijing road surface, the method to identify hidden diseases in subgrade such as cavity and loose ...