Results 71 to 80 of about 131,875 (310)

Evaluation of the Langley 4- by 7-meter tunnel for propeller noise measurements [PDF]

open access: yes
An experimental and theoretical evaluation of the Langley 4- by 7- Meter Tunnel was conducted to determine its suitability for obtaining propeller noise data. The tunnel circuit and open test section are described. An experimental evaluation is performed
Block, P. J. W., Gentry, G. L., Jr.
core   +1 more source

Determination of the hydrodynamic performance of marine propellers using fibre Bragg gratings [PDF]

open access: yes, 2019
Downloading of the abstract is permitted for personal use only. A critical aspect in the design of marine propellers is their hydrodynamic performance which, when evaluated experimentally, requires a number of parameters to be monitored at the same time,
Carlton, J.   +8 more
core   +1 more source

Mesoporous Silica Nanoparticles in Biomedicine: Advances and Prospects

open access: yesAdvanced Materials, EarlyView.
Mesoporous silica nanoparticles offer unique properties like high surface area, tunable pores, and functionalization. They excel in drug delivery, tissue engineering, and stimuli‐responsive therapies, enabling targeted and controlled treatments. With roles in cancer therapy and diagnostics, their clinical translation requires addressing challenges in ...
Miguel Manzano, María Vallet‐Regí
wiley   +1 more source

Analysis of Hydrodynamic Performance of L-Type Podded Propulsion with Oblique Flow Angle

open access: yesJournal of Marine Science and Engineering, 2019
In this study, the Reynolds-averaged Navier⁻Stokes (RANS) method and a model experimental test in a towing tank are used to investigate the unsteady hydrodynamic performance of L-type podded propulsion under different oblique flow angles and ...
Wei Wang   +3 more
doaj   +1 more source

Flow-field Survey of an Empennage Wake Interacting with a Pusher Propeller [PDF]

open access: yes
The flow field between a model empennage and a 591-mm-diameter pusher propeller was studied in the Ames 7- by 10-Foot Wind Tunnel with directional pressure probes and hot-wire anemometers.
Horne, W. Clifton, Soderman, Paul T.
core   +1 more source

2D Co‐Mo‐Hydroxide‐Based Multifunctional Material for the Development of H2‐Based Clean Energy Technologies

open access: yesAdvanced Materials, EarlyView.
2D α‐Co(OH)2 interleaved with Mo species displays an appealing dual functionality for the production and use of green hydrogen.Mo incorporation greatly benefits the electrochemical behaviour in Oxygen Evolution Reaction for H2 production, while the magnetocaloric response at liquid H2 temperature paves the way for alternative cryogenic refrigerants ...
Daniel Muñoz‐Gil   +14 more
wiley   +1 more source

The Effect of the External Counter Rotating for the Water Flow Velocity Profile of Twin Propeller System

open access: yesJournal of Applied Science and Engineering
The posture of water flow velocity generated by the rotation of the ship’s propeller needs to be studied to see the performance of the propeller and the potential for scouring that the seabed can cause.
Abdul Kadir   +13 more
doaj   +1 more source

The propeller tip vortex. A possible contributor to aircraft cabin noise [PDF]

open access: yes
Although the assumption is generally made that cabin noise levels are governed by the transmission of propeller generated noise through the fuselage sidewall, it was postulated that the propeller wake striking the wing, in particular pressure ...
Dittmar, J. H.   +2 more
core   +1 more source

3D Anodic Alumina Nanoarchitectures: A Decade of Progress from Foundational Science to Functional Metamaterials

open access: yesAdvanced Materials, EarlyView.
Ordered three‐dimensional anodic aluminum oxide (3D‐AAO) nanoarchitectures with longitudinal and transverse pores enable architecture‐driven metamaterials. The review maps fabrication advances, including hybrid pulse anodization, and shows how 3D‐AAO templates tailor properties across magnetism, energy, catalysis, and sensing.
Marisol Martín‐González
wiley   +1 more source

Low-speed wind tunnel performance of high-speed counterrotation propellers at angle-of-attack [PDF]

open access: yes
The low-speed aerodynamic performance characteristics of two advanced counterrotation pusher-propeller configurations with cruise design Mach numbers of 0.72 were investigated in the NASA Lewis 9- by 15-Foot Low-Speed Wind Tunnel.
Gazzaniga, John A.   +1 more
core   +1 more source

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