Results 61 to 70 of about 10,039,203 (328)

On Free Boundary and Interfacial Vibrations of Thin Elastic Semi-Infinite Plates with Free End

open access: yesМеханика 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  

An unexpected alternative viologen electron mediator site in tungsten‐containing formate dehydrogenase

open access: yesFEBS Letters, EarlyView.
An unexpected alternative interaction site for ethyl viologen was identified in formate dehydrogenase 1 from Methylorubrum extorquens. Combined mutagenesis, kinetic analysis, and docking revealed that aromatic residues near an iron–sulfur cluster enable flavin mononucleotide‐independent electron transfer, offering a framework for engineering improved ...
Eleni G. Poloniataki, Yong Hwan Kim
wiley   +1 more source

Dynamic Modeling and Analysis of a Driving Passenger Vehicle

open access: yesApplied Sciences, 2023
This study presents a dynamic model of a passenger vehicle and analyzes its dynamic characteristics and responses. A dynamic vehicle model with seven degrees of freedom was established to analyze the behavior of a driving vehicle.
Seen Yun   +5 more
doaj   +1 more source

Inverse boundary problems for intermediate springs on a rod with geometrical symmetry

open access: yesElectronic Journal of Differential Equations, 2017
In this article we try to solve the inverse problem of determining the coefficients of stiffness of the intermediates on the springs on the rod from the two known natural frequencies.
Daulet B. Nurakhmetov   +2 more
doaj  

Operational Modal Analysis of the Cablestayed Footbridge

open access: yesCivil 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

open access: yesVietnam 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

In-Process Monitoring of Changing Dynamics of a Thin-Walled Component During Milling Operation by Ball Shooter Excitation

open access: yesJournal of Manufacturing and Materials Processing, 2020
During the milling of thin-walled workpieces, the natural frequencies might change radically due to the material removal. To avoid resonant spindle speeds and chatter vibration, a precise knowledge of the instantaneous modal parameters is necessary. Many
Daniel Bachrathy   +5 more
doaj   +1 more source

TRAIL‐PEG‐Apt‐PLGA nanosystem as an aptamer‐targeted drug delivery system potential for triple‐negative breast cancer therapy using in vivo mouse model

open access: yesMolecular Oncology, EarlyView.
Aptamers are used both therapeutically and as targeting agents in cancer treatment. We developed an aptamer‐targeted PLGA–TRAIL nanosystem that exhibited superior therapeutic efficacy in NOD/SCID breast cancer models. This nanosystem represents a novel biotechnological drug candidate for suppressing resistance development in breast cancer.
Gulen Melike Demirbolat   +8 more
wiley   +1 more source

Structure and Properties of Doped with Nitrogen and Vanadium High-Carbon Steels

open access: yesМеханика 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 ...
Petr A. Vityaz   +5 more
doaj  

Method of Calculation Flexural Stiffness Over Natural Oscillations Frequencies

open access: yesArchives of Civil Engineering, 2018
The actual load-bearing capacity of elements of a building system can be calculated by dynamic parameters, in particular by resonant frequency and compliance.
Nesterenko A.   +2 more
doaj   +1 more source

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