Results 81 to 90 of about 256,906 (176)

A three-dimensional coupled structure triboelectric nanogenerator for vertical and horizontal mechanical energy harvesting and fitness gait monitoring

APL Materials
Recently, the self-powered monitoring device used for wearable sensors has attracted attention from various industries. It is worth noting that previous self-powered sensors were mostly focused on unidirectional sensing and monitoring, and few sensors ...
Cheng Luo, Hai Li
doaj   +1 more source

Intraday and Interday Reliability of Horizontal Upper Body Push and Pull Isometric Strength Qualities Using the VALD DynaMo Max Dynamometer

Biomechanics
Background/Objectives: To evaluate the intraday and interday reliability of seated horizontal upper body (UB) isometric push and pull tests performed with the VALD DynaMo Max dynamometer.
Ivan Curovic, Milan Markovic, Lazar Toskic, Jill Alexander, Damian J. Harper   +4 more
doaj   +1 more source

Dynamic analysis of road vehicle-bridge systems under turbulent wind by means of Finite Element Models [PDF]

, 2011
When an automobile passes over a bridge dynamic effects are produced in vehicle and structure. In addition, the bridge itself moves when exposed to the wind inducing dynamic effects on the vehicle that have to be considered.
Antolin Sanchez, Pablo, Astiz Suárez, Miguel Angel, Goicolea Ruigómez, José María, Oliva Quecedo, Javier   +3 more
core   +1 more source

Multi-Story Volumetric Blocks Buildings with Lower Frame Floors

Buildings
This article presents the results of experimental studies of the stress–strain state of volumetric blocks based on the underlying frame structures. The aim of the research is to evaluate the stress–strain state and the nature of damage development as a ...
Ilia Teshev, Aliy Bespayev, Zauresh Zhambakina, Murat Tamov, Ulan Altigenov, Timur Zhussupov, Aigerim Tolegenova   +6 more
doaj   +1 more source

Force harmonic distortion in the supine human body during vertical and longitudinal horizontal sinusoidal whole-body vibration

, 2007
Resonances in the apparent mass of the human body occur at lower frequencies when the vibration magnitude is increased – a non-linearity that has been found with seated and standing persons. Increased harmonic distortion has been found in the dynamic force at the seat and the acceleration of the spine and pelvis for seated subjects exposed to higher ...
openaire   +1 more source

Wind Tunnel Balance Measurements of Bioinspired Tails for a Fixed Wing MAV

Drones
Bird tails play a significant role in aerodynamics and stability during flight. This paper investigates the use of bioinspired horizontal stabilizers for Micro Air Vehicles (MAVs) with Zimmerman wing-body geometry.
Rafael Bardera, Ángel. A. Rodríguez-Sevillano, Estela Barroso, Juan Carlos Matías, Suthyvann Sor Mendi   +4 more
doaj   +1 more source

Running sinkage and trim of the DTC container carrier in harmonic sway and yaw motion : open model test data for validation purposes [PDF]

, 2016
Delefortrie, Guillaume, Eloot, Katrien, Lataire, Evert, Vantorre, Marc   +3 more
core   +2 more sources

Study on the Segment Damage Mechanism of Curved Shield Tunnels during Construction Stage

Chengshi guidao jiaotong yanjiu
Objective Damage to shield tunnel segments will cause water seepage in the tunnel, affecting the structural bearing capacity and endanger the operational safety. Therefore, it is necessary to study the mechanism of segment structure damage.
ZHU Bin
doaj   +1 more source

Study on Forced Convective Heat Transfer between Horizontal Flat Plates : Effect of Longitudinal Vortex Rolls

Transactions of the Japan Society of Mechanical Engineers, 1965
Yasuo MORI, Yutaka UCHIDA
openaire   +2 more sources

Free-flight investigation of the stability and control characteristics of a STOL model with an externally blown jet flap [PDF]

The stability and control characteristics of a four-engine turbofan STOL transport model having an externally blown jet flap have been investigated by means of the flying-model technique in the Langley full-scale tunnel. The flight characteristics of the
Emerling, S. J., Parlett, L. P., Phelps, A. E., III   +2 more
core   +1 more source