Results 61 to 70 of about 881,566 (302)

Parametric Excitation of a DWSC [PDF]

open access: yes, 2010
Parametric excitation of the DWSC (Deep Water Stable Craneship) is studied in this thesis. It occurs for a system without any external forcing, when one of the coefficients in the equation of motion (EOM) modeling the system varies with time.
Lakhotia, Chandan
core  

The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation

open access: yesFEBS Letters, EarlyView.
Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge   +6 more
wiley   +1 more source

Antiferromagnetic Antenna Based on Parametric Resonance Driven by Spatially Non-Uniform Voltage-Controlled Magnetic Anisotropy

open access: yesIEEE Open Journal of Nanotechnology
Antiferromagnets (AFMs), having no stray fields and terahertz frequency dynamics, are ideal candidates to be employed as material elements in antennas in 5G/6G systems, where compact, efficient antennas working in the radiofrequency are essential ...
Andrea Meo   +5 more
doaj   +1 more source

Parametric excitation of a SiN membrane via piezoelectricity

open access: yesAIP Advances, 2018
We develop a stoichiometric silicon nitride (SiN) membrane-based electromechanical system, in which the spring constant of the mechanical resonator can be dynamically controlled via piezoelectric actuation.
Shuhui Wu   +4 more
doaj   +1 more source

Dynamics of a Parametrically Excited System with Two Forcing Terms

open access: yesMathematics, 2014
Motivated by the dynamics of a trimaran, an investigation of the dynamic behaviour of a double forcing parametrically excited system is carried out. Initially, we provide an outline of the stability regions, both numerically and analytically, for the ...
Anastasia Sofroniou, Steven Bishop
doaj   +1 more source

Smaller is better: nanobodies meet NMR

open access: yesFEBS Letters, EarlyView.
Nanobodies are single‐domain antigen‐binding fragments derived from camelid heavy chain antibodies. Their small size, high stability, and exceptional specificity make nanobodies uniquely useful probes for NMR studies of protein dynamics, transient conformational states, and protein–protein interactions.
Oleg Y. Dmitriev
wiley   +1 more source

Nonlinear Dynamical Analysis for the Cable Excited with Parametric and Forced Excitation [PDF]

open access: yesJournal of Applied Mathematics, 2014
Considering the deck vibration effect on the cable in cable-stayed bridge, using nonlinear structure dynamics theory, the nonlinear dynamical equation for the stayed cable excited with deck vibration is proposed. Research shows that the vertical vibration of the deck has a combined parametric and forced excitation effect on the cable when the angle of ...
Qian, C. Z., Chen, C. P., Zhou, G. W.
openaire   +3 more sources

Membrane composition and thermodynamic identity as boundaries of life for synthetic cell research

open access: yesFEBS Letters, EarlyView.
What makes a cell a cell? The boundary of a living cell is not just a wall. Read as a Markov blanket, the membrane separates internal from external states, generating identity and non‐equilibrium order. Can this identity be rebuilt from scratch in a synthetic cell?
Caterina Presutti, Bert Poolman
wiley   +1 more source

Parametric excitation based gait generation for ornithoid walking [PDF]

open access: yes, 2008
The parametric excitation based gait generation method proposed by Asano et al. restores mechanical energy lost by heel-strike collisions. Harata et. al.
Y. Harata   +11 more
core   +1 more source

Nonlinear modelling and dynamic stability analysis of a flexible Cartesian robotic manipulator with base disturbance and terminal load [PDF]

open access: yesMechanical Sciences, 2017
The flexible Cartesian robotic manipulator (FCRM) is coming into widespread application in industry. Because of the feeble rigidity and heavy deflection, the dynamic characteristics of the FCRM are easily influenced by external disturbances which ...
J. Ju, W. Li, M. Fan, Y. Wang, X. Yang
doaj   +1 more source

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