On the eigenmodes and eigenfrequencies of low-dimensional degenerated carbon structures: obtaining natural frequencies of ideal and structurally defected systems [PDF]
, 2019 We concentrated on evaluating the vibrational response of ideal and defected degenerated carbon nanostructures under the influence of different boundary conditions.
Kazemi, Seyedeh Alieh +4 more
core +1 more source
NATURAL FREQUENCIES AND MODES SHAPES OF TWO RIGID BLADED DISCS ON THE SHAFT
TASK Quarterly, 2004 The dynamic behavior of a rotor consisting of two bladed discs on a solid shaft is considered. The effect of shaft flexibility on the dynamic characteristics of the bladed discs and the coupling effects between the shaft and bladed disc modes are ...
ROMUALD RZĄDKOWSKI, JACEK SOKOŁOWSKI
doaj
Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system
FEBS Letters, EarlyView.Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley +1 more source
On the bipenalty method: why is it advantageous to add stiffness and mass [PDF]
, 2011 In a recent paper, Askes et al [1] proposed the simultaneous use of stiffness and inertia of large magnitude to model constraints in time domain analysis.
Ilanko, Sinniah +1 more
core
Balanced Definition of Thresholds for Mode Tracking in a Long-Term Seismic Monitoring System
Geosciences, 2023 The catastrophic events of recent years have strengthened the awareness of the fragility of the built heritage and the importance of careful and targeted maintenance.
Stefania Coccimiglio +4 more
doaj +1 more source
On Free Boundary and Interfacial Vibrations of Thin Elastic Semi-Infinite Plates with Free End
Механика машин, механизмов и материалов, 2015 Free planar and bending interfacial and boundary vibrations of semi infinite composed plates and plate strips are studied. Using the system of equations of the related classical theory of orthotropic plates, dispersion equations and asymptotic formulas ...
Gurgen R. Ghulghazaryan +2 more
doaj
Operational Modal Analysis of the Cablestayed Footbridge
Civil and Environmental Engineering, 2017 Modern architecture leads to design subtle bridge structures that are more sensitive to increased dynamic loading than the massive ones. This phenomenon can be especially observed on lightweight steel structures such as suspended footbridges. As a result,
Kortiš Ján +4 more
doaj +1 more source
Multiple crack identification in stepped beam by measurements of natural frequencies
Vietnam Journal of Mechanics, 2014 A new approach is proposed for calculating natural frequencies and crack detection in a stepped cantilever beam with arbitrary number of cracks. This is based an explicit expression of the natural frequencies in term of crack parameter derived in the ...
Nguyen Tien Khiem +2 more
doaj +1 more source
FEBS Letters, EarlyView.Embryo‐like structures (stembryos) are an innovative tool, but they are hindered by experimental variability and limited developmental potential. DNA methylation is crucial for mammalian development, but its status in stembryo models is poorly characterized.
Sara Canil +4 more
wiley +1 more source
Machine learning-based clustering and regression for assessing temperature-induced variations on external tendon’s natural frequencies [PDF]
© 2024 The Author(s)Vibration-based techniques for external post-tensioning tendons have been used as non-destructive technique to assess their mechanical behavior.
García-Palacios, Jaime H. +4 more
core +1 more source