Results 31 to 40 of about 3,910,937 (245)

Spectral Analysis for Randomly Excited Articulated vehicles [PDF]

open access: yesEngineering and Technology Journal, 2007
The spectral density analysis of the articulated vehicles is a subject of greatimportance and it is widely applied in the area of vehicles design and safety.So the vehicles when ride over rough roads, respond dynamically andinadequate road holding may ...
Kadhim Karim Muhsin
doaj   +1 more source

An optical fibre-based frequency dissemination network for Australia

open access: yes, 2011
An optical-fibre network is being planned for distribution of optical and microwave reference frequencies in Australia. This network would connect a number of research facilities and the National Measurement Institute (NMI), allowing long-range ...
Luiten, A.   +9 more
core   +1 more source

Dynamic frequency-dependent fatigue damage in metals: A state-of-the-art review

open access: yesForces in Mechanics, 2023
Ultrasonic high-frequency fatigue testing differs from conventional low-frequency fatigue testing in strain rate and cyclic loading. Ultrasonic fatigue has a resonance frequency of 20,000 Hz and a load frequency below 100 Hz. A large change in cycles per
Kamin Tahmasbi   +3 more
doaj   +1 more source

Vibrational performance of pedestrian bridges due to human-induced loads. [PDF]

open access: yes, 1997
The vibrational performance of footbridges due to human-induced loads has been investigated, based on modal and pedestrian tests carried out on three prototype footbridges.
Pimentel, Roberto Leal
core   +6 more sources

Integrating Loading Temporal Characteristics and History Into Strain-Adaptive Bone Remodeling for Improved Prediction of Tibial Peri-Prosthetic Bone Mineral Density

open access: yesIEEE Access
Accurate prediction of post-implantation bone remodeling is essential for preserving bone stock, mitigating aseptic loosening, and guiding implant design.
Mohanad Hassan   +2 more
doaj   +1 more source

Coupling effects of bidirectional cyclic loading and loading frequency on pore water pressure of saturated soft clay

open access: yesYantu gongcheng xuebao, 2017
A series of undrained cyclic tests with variable confining pressures are conducted on Ningbo saturated soft clay by using the GDS cyclic triaxial system. In this study, the coupling effects of cyclic deviatoric stress and cyclic confining pressure on the
HUANG Jue-hao 1, 2, CHEN Jian 1, 2, KE Wen-hui 3, ZHONG Yu 4, QIU Yue-feng 1, 2
doaj   +1 more source

Experimental Investigation on the Behavior of Gravelly Sand Reinforced with Geogrid under Cyclic Loading

open access: yesApplied Sciences, 2021
In view of the dynamic response of geogrid-reinforced gravel under high-speed train load, this paper explores the dynamic characteristics of geogrid-reinforced gravel under semi-sine wave cyclic loading. A number of large scale cyclic triaxial tests were
Jia-Quan Wang   +4 more
doaj   +1 more source

Investigation on the Effect of Dynamic Frequency on Fracture Evolution in Preflawed Rock under Multistage Cyclic Loads: Insight from Acoustic Emission Monitoring

open access: yesGeofluids, 2020
This study is aimed at revealing the effect of dynamic loading frequency on the fracture evolution behavior in preflawed rock samples under multistage cyclic loading conditions. The fracture evolution characteristics were investigated using stress-strain
H. J. Meng, Y. Wang, B. Zhang, S. H. Gao
doaj   +1 more source

Evidence‐Informed Multidisciplinary Consensus Guidance for the Psychosocial Care of Adolescents With High‐Risk Cancer: Recommendations From the Italian Association of Pediatric Hematology and Oncology

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Adolescents with high‐risk cancer face complex developmental, psychosocial, and ethical challenges that extend beyond disease‐directed treatment. Although international recommendations exist for communication, psychosocial care, pediatric palliative care, survivorship, and shared decision‐making, these have largely evolved within ...
Johanna M. C. Blom   +15 more
wiley   +1 more source

Properties of mass-loading shocks, 2. Magnetohydrodynamics [PDF]

open access: yes, 1992
The one-dimensional magnetohydrodynamics of shocked flows subjected to significant mass loading are considered. Recent observations at comets Giacobini-Zinner and Halley suggest that simple nonreacting MHD is an inappropriate description for active ...
Oughton, Sean   +3 more
core   +1 more source

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