Results 111 to 120 of about 12,741 (257)

Robust Position Control of an Electro‐Hydraulic Actuator via Metaheuristic Optimization of a Fractional‐Order PID Controller

International Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT In this study, a robust position control strategy is presented for a two‐stage electro‐hydraulic actuator system using a fractional‐order proportional–integral–derivative (FOPID) controller tuned by Kirchhoff's law algorithm (KLA). Electro‐hydraulic systems exhibit strong nonlinearities, parameter uncertainties, and external disturbances ...
Ridvan Firat Cinar, Davut Izci, Serdar Ekinci, Mohammad Salman, Mohammad Al‐Rabayah, Ali Akdagli, Ali Yildiz, Filiz Karaomerlioglu, Gökhan Yüksek   +8 more
wiley   +1 more source

Ultrasound‐Confirmed Median Nerve Pseudoconduction Block due to Anatomical Variation

Muscle &Nerve, EarlyView.
ABSTRACT Introduction/Aims Conduction block (CB) at non‐entrapment sites is an important electrodiagnostic (EDX) feature supporting acquired demyelinating neuropathies. However, anatomical variation may produce pseudoconduction block, mimicking true CB.
Yajing Ye, Bashar Katirji, Robert D. Adams   +2 more
wiley   +1 more source

An Adaptive Coupling of Edge-Based Smoothed FEM and SPH with a Bidirectional Element-Particle Transformation Algorithm for Laser Powder Bed Fusion. [PDF]

Materials (Basel)
Suo M, Long T.
europepmc   +1 more source

A New Approach of Volume Differential Method with Finite Elementin Form-finding Analysis of Pneumatic Membrane Structures

工程科学与技术, 2007
:In order to determine the initial stress of pneumatic membrane structures in form finding analysis in the condition that the internal pressure is given, the Taylor Expansion of a multi variable function is used to establish the volume differential ...
doaj  

A Coupled Extended Finite Element–Cohesive Zone Model for Hydraulic Fracture Propagation Under Poroelastic Effects Across Different Propagation Regimes

International Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT Numerical simulation of hydraulic fracturing remains challenging due to the strong coupling between geomechanics and fluid flow when modelling multiple physical mechanisms of rock deformation, fracture evolution and fluid leak‐off. This study develops a coupled hydraulic fracture propagation framework that combines the extended finite element ...
Ran Tao, Juliana Y. Leung, Samer Adeeb
wiley   +1 more source

Relative Entropy-Based Reliability Assessment of Hybrid Telecommunication Skeletal Towers. [PDF]

Entropy (Basel)
Kamiński M, Bredow R.
europepmc   +1 more source

A Coupled Chemohydraulic Model of a Hydration Experiment

International Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT This article presents a model for the hydration of periclase into brucite during water infiltration into a dry, pure periclase core. The hydration process proceeds in two stages. In Phase I, an infiltration front advances through the core while simultaneously triggering the hydration reaction.
Emmanuel Detournay, Vaughan Voller
wiley   +1 more source

Outcome of segmentectomy vs. lobectomy in patients with cT1a-b N0 lung cancer and postoperative N1 upstaging. [PDF]

Langenbecks Arch Surg
Kaman H, Stork T, Okumus Ö, Jemsi M, Petrone AM, Alnajdawi Y, Collaud S.   +6 more
europepmc   +1 more source

Numerical Modeling of Geological Fault Reactivation Using Sequential Coupling Strategies

International Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT The interaction between fluid flow and mechanical deformation in fault zones can lead to processes of fault reactivation, triggering potential geomechanical problems such as seismicity, well collapse, fluid migration to shallower layers, and aggravated surface subsidence.
Julio Rueda, Cristian Mejia, Roberto Quevedo, Deane Roehl   +3 more
wiley   +1 more source

Perioperative immunotherapy in resectable HNSCC: biological rationale to practical multidisciplinary implementation. [PDF]

Front Oncol
Bila M, Vander Poorten V, Meulemans J, Huvenne W, De Vos W, Willaert R, De Ceulaer J, Clement PM.   +7 more
europepmc   +1 more source