Results 21 to 30 of about 108,443 (306)

Measuring miniature eye movements by means of a SQUID magnetometer [PDF]

open access: yes, 1982
A new technique to measure small eye movements is reported. The precise recording of human eye movements is necessary for research on visual fatigue induced by visual display units.1 So far all methods used have disadvantages: especially those which are ...
Breukink, E.W.   +4 more
core   +4 more sources

Experimental Tests and Numerical Analyses for the Dynamic Characterization of a Steel and Wooden Cable-Stayed Footbridge

open access: yesInfrastructures, 2023
Vibrations are an issue of increasing importance in current footbridge design practice. More sophisticated footbridges with increasing spans and more effective construction materials result in lightweight structures and a high ratio of live load to dead ...
Vanni Nicoletti   +4 more
doaj   +1 more source

Some relevant aspects of footbridge vibrations [PDF]

open access: yesFacta Universitatis. Series: Architecture and Civil Engineering, 2002
Considering the contemporary structural inaterials that are becoming more resistant, having higher strength to weight ratio, and the fact that live load of footbridges is low, the design based on static analysis only, respecting ultimate limit states ...
Spasojević Ana   +3 more
doaj   +1 more source

Design of a Semiactive TMD for Lightweight Pedestrian Structures Considering Human–Structure–Actuator Interaction

open access: yesActuators, 2022
Lightweight pedestrian structures constructed with high strength-to-weight ratio materials, such as fiber-reinforced polymers (FRP), may experience large accelerations due to their lightness, thus overcoming the serviceability limit state.
Christian A. Barrera-Vargas   +3 more
doaj   +1 more source

The role of fingerprints in the coding of tactile information probed with a biomimetic sensor [PDF]

open access: yes, 2009
In humans, the tactile perception of fine textures (spatial scale
A. Prevost   +18 more
core   +3 more sources

Experimental and Numerical Investigation on Dynamic Properties and Human-Induced Vibrations of an Asymmetric Steel-Plated Stress-Ribbon Footbridge

open access: yesAdvances in Civil Engineering, 2021
This paper presents a comprehensive study on dynamic properties and human-induced vibrations of a slender asymmetric steel-plated stress-ribbon footbridge via both experimental and analytical methods.
Yi Zhang, Wei He, Jiewen Zhang, Hua Dong
doaj   +1 more source

Numerical Model for Human Induced Vibrations [PDF]

open access: yes
This paper proposes a new model for describing the effect of people on the dynamic behaviour of slender structures. The influence of people is described by using the so-called ground reaction forces. These are split into two types: passive ground reaction forces and active ground reaction forces.
Vanali, Marcello   +2 more
openaire   +2 more sources

Application of an Artificial Fish Swarm Algorithm in an Optimum Tuned Mass Damper Design for a Pedestrian Bridge

open access: yesApplied Sciences, 2018
Tuned mass damper (TMD) has a wide application in the human-induced vibration control of pedestrian bridges and its parameters have great influence on the control effects, hence it should be well designed.
Weixing Shi   +3 more
doaj   +1 more source

Evaluation and Prediction of Blast-Induced Ground Vibrations: A Gaussian Process Regression (GPR) Approach

open access: yesMining, 2023
Ground vibration is one of the most hazardous outcomes of blasting. It has a negative impact both on the environment and the human population near to the blasting area.
Yewuhalashet Fissha   +5 more
doaj   +1 more source

Effect of Vinyl Flooring on the Modal Properties of a Steel Footbridge [PDF]

open access: yes, 2019
Damping ratios associated with non structural elements play an important role in mitigating the pedestrian-induced vibrations of slender footbridges.
Hernández Díaz, Alejandro Mateo   +3 more
core   +1 more source

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