Results 21 to 30 of about 32,943,257 (245)

Frequency conversion based on three-wave parametric solitons [PDF]

open access: yes, 2010
Parametric three-wave mixing in quadratic nonlinear crystals provides a versatile means of achieving widely tunable frequency conversion of laser light, thus permitting a substantial extension of the wavelength coverage of laser sources across broad ...
Degasperis, Antonio   +17 more
core   +1 more source

Fracture reorientation mechanism during hydraulic fracturing based on XFEM simulation

open access: yesFrontiers in Earth Science
Understanding the reorientation mechanism of near-wellbore hydraulic fractures is very important for optimizing parameters in field fracturing treatments. In this study, a fully 2D coupled seepage–stress model based on the extended finite element method (
Xiaolong Li
doaj   +1 more source

Semi-automated stereoradiographic upper limb 3D reconstructions using a combined parametric and statistical model: a preliminary study [PDF]

open access: yes, 2011
PURPOSE: Quantitative assessment of 3D clinical indices may be crucial for elbow surgery planning. 3D parametric modeling from bi-planar radiographs was successfully proposed for spine and lower limb clinical investigation as an alternative for CT-scan ...
CLAIREMIDI, Alain   +17 more
core   +1 more source

A reconfigurable multi-terrain adaptive casualty transport aid base on Watt II six-bar linkage for industrial environment

open access: yesFrontiers in Bioengineering and Biotechnology
Introduction: This paper presents the Reconfigurable Multi-Terrain Adaptive Casualty Transport Aid (RMTACTA), an innovative solution addressing the critical need for rapid and safe pre-hospital casualty transport in industrial environments.
Zongqi Jiao   +8 more
doaj   +1 more source

Impact of Inter-Modular Connections on Progressive Compressive Behavior of Prefabricated Column-Supported Volumetric Modular Steel Frames

open access: yesCrystals
This study investigates the progressive compressive behavior of modular interior frames with rotary-type module-to-module inter-modular (M2M) connections under sequential column failure.
Kejia Yang   +4 more
doaj   +1 more source

Size effect on the flexural behavior of UHPFRC beams and RC beams strengthened with UHPFRC [PDF]

open access: yesRevista IBRACON de Estruturas e Materiais
The presence of fibers in Ultra-High-Performance Fiber Reinforced Concrete (UHPFRC) considerably affects the mechanical behavior of structural elements constructed from this material.
Felipe Augusto da Silva Barbosa   +3 more
doaj   +1 more source

Experimental Analysis of Electrohydrodynamic Jet Actuation Modes Based on the Phase Doppler Technique

open access: yesActuators
Electrosprays have garnered significant interest across various fields, from automotive painting to aerospace propulsion, due to their versatility and precision.
Gustavo Nunes   +3 more
doaj   +1 more source

Experimental investigation of parametric transfer in synchronously pumped optical parametric oscillators

open access: yes, 2007
We experimentally investigate the parameters affecting parametric transfer in a synchronously pumped optical parametric oscillator for indirect shaping of mid-infrared ultrashort pulses and make comparisons with previously reported numerical modeling ...
Hung, H.S.   +9 more
core   +1 more source

Study on probabilistic multi- objective linear fractional programming problems under fuzziness

open access: yesInternational Journal of Industrial Engineering and Production Research, 2020
This paper deals with a multi- objective linear fractional programming problem involving probabilistic parameters in the right- hand side of the constraints.
Hamiden Khalifa, E. E. Ammar
doaj  

Design of a simplified cranial substitute with a modal behavior close to that of a human skull

open access: yesFrontiers in Bioengineering and Biotechnology
Individuals exposed to the propagation of shock waves generated by the detonation of explosive charges may suffer Traumatic Brain Injury. The mechanism of cranial deflection is one of many hypotheses that could explain the observed brain damage.
Natacha Elster   +6 more
doaj   +1 more source

Home - About - Disclaimer - Privacy