Results 21 to 30 of about 42,280 (306)

Trunk Muscle Coactivation in People with and without Low Back Pain during Fatiguing Frequency-Dependent Lifting Activities

open access: yesSensors, 2022
Lifting tasks are manual material-handling activities and are commonly associated with work-related low back disorders. Instrument-based assessment tools are used to quantitatively assess the biomechanical risk associated with lifting activities.
Tiwana Varrecchia   +5 more
doaj   +1 more source

Wavelet Analysis for the Extraction of Morphological Features for Orthopaedic Bearing Surfaces [PDF]

open access: yes, 2011
In this chapter three generations of biorthogonal wavelet transforms, for the extraction of morphological structures from micro/nano scalar surfaces in the field of bioengineering, are introduced.
Jiang, X.   +8 more
core   +1 more source

Optimization of wind farm layout [PDF]

open access: yesFME Transactions, 2010
This paper presents a method for determination of optimum positions of single wind turbines within the wind farms installed on arbitrary configured terrains, in order to achieve their maximum production effectiveness.
Rašuo Boško P., Bengin Aleksandar Č.
doaj  

Dynamic Analysis and Safety Assessment of Ships and Cables during Salvage Operations

open access: yesApplied Sciences, 2023
The International Maritime Organization (IMO) emphasizes that shipwreck accidents frequently occur at sea and advocates for the safe recovery of shipwrecks.
Han Zou   +3 more
doaj   +1 more source

Chemical enhancement of footwear impressions in blood deposited on fabric - Evaluating the use of alginate casting materials followed by chemical enhancement [PDF]

open access: yes, 2010
Most footwear marks made in blood on a surface such as fabric tend to be enhanced in situ rather than physically recovered using a lifting technique prior to enhancement.
NicDaeid, N.   +12 more
core   +1 more source

Aerodynamic Modeling and Simulation of Multi-Lifting Surfaces Based on the Unsteady Vortex Lattice Method

open access: yesAerospace, 2023
Using the unsteady vortex lattice method based on the potential flow theory, a rapid modeling approach is developed for the aerodynamic computation of multi-lifting surfaces.
Wei Gao, Yishu Liu, Qifu Li, Bei Lu
doaj   +1 more source

Stereo Digital Particle Image Velocimetry Investigation of a Free Surface Mixing Layer [PDF]

open access: yes, 2005
Shear flows in the vicinity of a free surface are a problem with numerous applications, perhaps the most obvious being the wakes of seagoing surface vessels.
Dooley, Bradley Scott
core   +1 more source

Lifting ordered surfaces: Ellipsoidal nematic shells [PDF]

open access: yesPhysical Review E, 2018
When a material surface is functionalized so as to acquire some type of order, functionalization of which soft condensed matter systems have recently provided many interesting examples, the modeler faces an alternative. Either the order is described on the curved, physical surface where it belongs, or it is described on a flat surface that is unrolled ...
Mirantsev, Leonid V.   +2 more
openaire   +4 more sources

Fracture Mechanism Analysis and Design Optimization of a Wheelset Lifting Mechanism Based on Experiments and Simulations

open access: yesMachines, 2022
In this study, material and dynamic stress experiments are combined with finite element (FE) simulations to reveal the fracture mechanism of the wheelset lifting apparatus, and a structural design optimization scheme based on the double-layer Kriging ...
Pengpeng Zhi   +6 more
doaj   +1 more source

A Numerical Solution for the Lifting Surface Integral Equation [PDF]

open access: yesINCAS Bulletin, 2014
In this paper, we present a new numerical treatment of the lifting surface integral equation (LSIE) in the case of rectangular wing planform. The kernel of this equation possesses a strong singularity in Hadamard sense. First the equation is transformed
Adrian STOICA
doaj   +1 more source

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