Results 91 to 100 of about 159,494 (305)

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal   +2 more
wiley   +1 more source

3D audio as an information-environment: manipulating perceptual significance for differntiation and pre-selection [PDF]

open access: yes, 2001
Contemporary use of sound as artificial information display is rudimentary, with little 'depth of significance' to facilitate users' selective attention. We believe that this is due to conceptual neglect of 'context' or perceptual background information.
Lennox, Peter   +2 more
core   +1 more source

Application of Controlled Source Audio Magnetotelluric (Csamt) at Geothermal [PDF]

open access: yes, 2017
CSAMT or Controlled Source Audio-Magnetotelluric is one of the Geophysics methods to determine the resistivity of rock under earth surface. CSAMT method utilizes artificial stream and injected into the ground, the frequency of artificial sources ranging ...
Mustopa, E. J. (Enjang)   +1 more
core   +2 more sources

On the Influence of Antioxidants and Recycled MgO–C Source Material on the Mechanical Properties of Carbon‐Bonded Magnesia Refractories

open access: yesAdvanced Engineering Materials, EarlyView.
The presented study focuses on the fracture behaviour of carbon‐bonded magnesia MgO–C refractories, where environmentally friendly fructose, collagen and lignin serve as temporary binding agents. The partial substitution of the source material with recycled MgO–C reduces the fracture resistance, which can be counteracted by the additional introduction ...
Marc Neumann   +6 more
wiley   +1 more source

The use of lasers for hydrographic studies [PDF]

open access: yes
The utilization of remote laser sensors in water pollution detection and identification, coastal environmental monitoring, and bathymetric depth sounding, is discussed ...
Kim, H. H., Ryan, P. T.
core   +1 more source

Bathymetric surveys and lake deposits [PDF]

open access: yes, 1938
A progress report on the bathymetric survey of Windereme undertaken in June 1937 by the Hydrographic Department of the Admiralty. The brief article outlines the background of the surveying process as well as the initial effectiveness of the survey work ...
Mortimer, C.H., Worthington, E.B.
core  

Evaluation of a hydrographic technique to measure on-farm water storage volumes [PDF]

open access: yes, 2005
Digital terrain models of on-farm water storages are required to assist in accurately measuring the on-farm water balance and water use efficiency components including storage capacity, inflow, seepage, evaporation and discharge volumes.
Clark   +10 more
core   +1 more source

Additive Manufacturing of Continuous Fibre Reinforced Composites: Process, Characterisation, Modelling, and Sustainability

open access: yesAdvanced Engineering Materials, EarlyView.
Additive manufacturing provides precise control over the placement of continuous fibres within polymer matrices, enabling customised mechanical performance in composite components. This article explores processing strategies, mechanical testing, and modelling approaches for additive manufactured continuous fibre‐reinforced composites.
Cherian Thomas, Amir Hosein Sakhaei
wiley   +1 more source

Mutual Clutter Suppression Techniques for FM Sonars

open access: yesArchives of Acoustics, 2016
The article presents methods that help in the elimination of mutual clutter as well as the consequences of two FM sounding signal sonars operating in the same body of water and frequency band. An in-depth analysis of mutual clutter was carried out.
Jacek MARSZAL   +4 more
doaj   +1 more source

Lake deposits [PDF]

open access: yes, 1939
An article detailing further developments in the bathymetric survey work as detailed in the 6th annual report of the Freshwater Biological Association.
Mortimer, C.H.
core  

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