Results 41 to 50 of about 4,186,617 (302)
Nonlinear Drillstring Dynamics Analysis [PDF]
SIAM Journal on Applied Dynamical Systems, 2009 This paper studies the dynamical response of a rotary drilling system with a drag bit, using a lumped parameter model that takes into consideration the axial and torsional vibration modes of the bit. These vibrations are coupled through a bit-rock interaction law.
Germay, Christophe +3 more
openaire +1 more source
Forced response of shrouded blades with a coupled static/dynamic approach [PDF]
, 2011 A coupled static-dynamic method is proposed and applied to bladed disks with shrouds, in order to calculate the nonlinear forced response in presence of friction damping in the frequency domain.
Zucca, Stefano +2 more
core
Molecular Oncology, EarlyView.Circulating microRNA profiles distinguish nonmalignant Lynch syndrome from cancer‐associated Lynch syndrome, sporadic colorectal cancer, and healthy controls. Age‐stratified analysis reveals disease‐specific regulatory states, and a six‐miRNA panel shows concordant separation in an independent colorectal tissue cohort.
Ramadhani Salum Chambuso +5 more
wiley +1 more source
Hilfer Fractional Quantum Derivative and Boundary Value Problems
Mathematics, 2022 In this paper, we introduce an extension of the Hilfer fractional derivative, the “Hilfer fractional quantum derivative”, and establish some of its properties.
Phollakrit Wongsantisuk +3 more
doaj +1 more source
The problem of dynamic cavitation in nonlinear elasticity [PDF]
, 2012 The notion of singular limiting induced from continuum solutions (slic-solutions) is applied to the problem of cavitation in nonlinear elasticity, in order to re-assess an example of non-uniqueness of entropic weak solutions (with polyconvex energy)
Miroshnikov, Alexey +5 more
core +2 more sources
The impact of leukocyte‐associated RNA retention on platelet RNA‐based cancer detection
Molecular Oncology, EarlyView.Platelets carry RNA signals that may help detect cancer, but platelet samples can also retain RNA from white blood cells. We found that this retained white blood cell signal did not significantly affect machine learning cancer classification, suggesting that the cancer‐related RNA signal in platelets is largely independent of leukocyte‐associated RNA ...
Michał Sieczczyński +12 more
wiley +1 more source
Mathematics, 2022 This chapter applies fundamental concepts of dynamics, nonlinearity, and chaotic behavior to notions of creativity, health, and illness. It describes how nonlinear dynamical systems (NDS) models apply to crucial issues and phenomena that are not well described with customary linear models.
António Lopes, J. Tenreiro Machado
openaire +3 more sources
Mathematics, 2023 In this paper, we introduce and study a new class of boundary value problems, consisting of a mixed-type ψ1-Hilfer and ψ2-Caputo fractional order differential equation supplemented with integro-differential nonlocal boundary conditions. The uniqueness of
Surang Sitho +3 more
doaj +1 more source
Directed evolution of enzymes at the crossroads of tradition and innovation
FEBS Open Bio, EarlyView.An iterative cycle of data‐driven enzyme optimization comprising four stages: genetic diversification of a template enzyme, expression of protein variants, high‐throughput evaluation, and machine‐learning‐guided redesign of the next variant library.
Maria Tomkova +2 more
wiley +1 more source
Linear and nonlinear dynamic behaviour for biped locomotion with flexible-wheeled legs [PDF]
, 2019 We present Linear and nonlinear dynamic behaviour for biped locomotion with flexible-wheeled ...
Bonisoli E., Muscolo G. G.
core +1 more source