Results 11 to 20 of about 246,714 (215)

Comparative Experimental Investigation on Optimal Parametric Array Types

open access: yesSensors, 2021
As a sound transmitting device that relies on the nonlinearity of a medium, a parametric array (PA) can generate high-directivity low-frequency signals using a small aperture transducer and high-frequency signals.
Donghwan Jung   +3 more
doaj   +1 more source

Parametric Knocking Performance Investigation of Spark Ignition Natural Gas Engines and Dual Fuel Engines

open access: yesJournal of Marine Science and Engineering, 2020
Both spark ignition (SI) natural gas engines and compression ignition (CI) dual fuel (DF) engines suffer from knocking when the unburnt mixture ignites spontaneously prior to the flame front arrival. In this study, a parametric investigation is performed
La Xiang   +5 more
doaj   +1 more source

Trustworthiness in Modeling Unreinforced and Reinforced T-Joints with Finite Elements

open access: yesMathematical and Computational Applications, 2019
As required by regulations, Finite Element Analyses (FEA) can be used to investigate the behavior of joints which might be complex to design due to the presence of geometrical and material discontinuities.
Slimane Ouakka, Nicholas Fantuzzi
doaj   +1 more source

Parametric Investigation of Pelton Turbine Injector under Hydro-abrasive Erosion Conditions [PDF]

open access: yesJournal of Applied Fluid Mechanics, 2023
In high-head Pelton turbines, the injector faces severe erosion due to suspended sediment leading to a reduction in turbine efficiency and higher maintenance costs.
N. Shrivastava, A. K. Rai
doaj   +1 more source

Numerical Investigation of Bolted Hybrid Steel-Timber Connections

open access: yesFrontiers in Built Environment, 2018
Hybrid steel to timber connections are found in many buildings and bridges. These connections offer several advantages such as ease of construction and energy dissipation.
Themistoklis Tsalkatidis   +3 more
doaj   +1 more source

Numerical Parametric Investigation of Nonaqueous Vanadium Redox Flow Batteries

open access: yesBatteries, 2022
Nonaqueous redox flow batteries are promising candidates for large-scale energy storage technologies. However, the effect of structural design and key factors limiting the performance are still not thoroughly understood.
Shaopei Huang, Yujuan Lu
doaj   +1 more source

A parametric investigation of endwall vortex generator jet on the secondary flow control for a high turning compressor cascade

open access: yesJournal of Thermal Science and Technology, 2017
A parametric investigation of secondary flow control using endwall vortex generator jet (VGJ) is performed in a high turning compressor cascade. The mechanisms for the variations of VGJ performance with different jet parameters including the pitch angle,
Huaping LIU   +4 more
doaj   +1 more source

Parametric Investigation of Cyclic Behavior of Bolted End plate Connections [PDF]

open access: yesJournal of Structural and Construction Engineering, 2020
بررسی دقیق عملکرد اتصالات در یک سازه فولادی از اهمیت ویژ‌ه‌ای برخوردار است و عدم دقت در طراحی و اجرای اتصالات، نه تنها موجب خرابی خود اتصال می‌شود بلکه اثرات ویران‌کنندهای نیز بر سایر اعضای سازه خواهد داشت.
farzan ekhlasi   +3 more
doaj   +1 more source

Nonlinear acoustics methods in the investigations of elastic wave interactions in the ocean [PDF]

open access: yesE3S Web of Conferences, 2019
Hydroacoustic parametric systems and methods of nonlinear acoustics in the investigation of the Ocean and the Arctic shelf are considered. A short description of the most promising directions of development of hydroacoustic systems with parametric ...
Tarasov Sergei   +3 more
doaj   +1 more source

Parameter Investigations of Waveguide-Integrated Lithium Niobate Photonic Crystal Microcavity

open access: yesPhotonics
Despite significant progress, fabricating two-dimensional (2D) lithium niobate (LN)-based photonic crystal (PhC) cavities integrated with tapered and PhC waveguides remains challenging, due to structural imperfections. Notable, especially, are variations
Sohail Muhammad   +9 more
doaj   +1 more source

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