Results 51 to 60 of about 9,942,018 (291)

Microstructure Modification of Additively Manufactured Mo–9Si–8B by Annealing and Its Effects on High‐Temperature Mechanical Properties

open access: yesAdvanced Engineering Materials, EarlyView.
Postbuild annealing systematically modifies the phase fractions and morphology of EB‐PBF processed Mo–9Si–8B. Quantitative microstructure–property correlations reveal how controlled phase evolution enhances high‐temperature compressive strength and creep resistance.
Christopher Schmidt   +5 more
wiley   +1 more source

Propulsive performance of a body with a traveling-wave surface

open access: yesPhysical Review E, 2012
A body with a traveling-wave surface (TWS) is investigated by solving the incompressible Navier-Stokes equation numerically to understand the mechanisms of a novel propulsive strategy. In this study, a virtual model of a foil with a flexible surface which performs a traveling-wave movement is used as a free swimming body.
Fang-Bao, Tian   +2 more
openaire   +3 more sources

Mitigating Creep Anisotropy and Enhancing Performance in Additively Manufactured Ni‐Based Superalloys: A Review

open access: yesAdvanced Engineering Materials, EarlyView.
Additive manufacturing introduces pronounced microstructural and crystallographic anisotropy in Ni‐based superalloys, resulting in orientation‐dependent creep deformation and damage. This review identifies the key microstructural origins of creep anisotropy, examines their influence on dominant deformation mechanisms, and highlights processing ...
Chandan Kumar   +3 more
wiley   +1 more source

A Study on Improvement of Propulsive Performance of an Underwater Vehicle “PICASSO”

open access: yes, 2011
This paper deals with the improvement of AUV/UROV’s hydrodynamic performance. Required hydrodynamic performance of AUV/UROV can be divided into propulsive performance and kinematic performance/maneuverability.
Hiroshi Yoshida   +5 more
core   +1 more source

Advances in Sustainable and Wearable Textile Based Soft Robotics

open access: yesAdvanced Functional Materials, EarlyView.
This Review examines advances in wearable textile‐based soft robotics, focusing on sustainable materials, integrated sensing, and scalable actuation. It discusses manufacturing and system integration across healthcare, assistive robotics, prosthetics, and human–machine interfaces, and highlights key challenges in circular design, including life‐cycle ...
Zahir Abbas   +6 more
wiley   +1 more source

Effects of gradual flexibility and trailing edge shape on propulsive performance of pitching fins

open access: yes, 2021
This paper addresses hydrodynamic performance of fins regarding their trailing edge convexity-concavity and flexibility distribution. The effects of trailing edge convexity-concavity on propulsive performance and vortex dynamics were investigated ...
L. Yao   +7 more
core   +1 more source

Biodegradable and Biocompatible Functional Polymers for Biomedical Applications

open access: yesAdvanced Functional Materials, EarlyView.
Biodegradable and biocompatible functional polymers integrate electrical, mechanical, and stimuli‐responsive functionalities while enabling programmed degradation under physiological conditions. This review introduces recent advances in conductive, shape‐memory, self‐healing, photocurable, and adhesive polymer systems, emphasizing material design ...
Won Bae Han   +5 more
wiley   +1 more source

Numerical Simulation and Experimental Study on the Aerodynamics of Propulsive Wing for a Novel Electric Vertical Take-Off and Landing Aircraft

open access: yesAerospace
The electric vertical take-off and landing (eVTOL) aircraft offers the advantages of vertical take-off and landing, environmental cleanliness, and automated control, making it a crucial component of future urban air traffic.
Junjie Wang   +3 more
doaj   +1 more source

Quiet propulsive lift for commuter airlines [PDF]

open access: yes, 1979
The performance of STOL or RTOL aircraft and NASA's research program to provide options for future design and certification of quiet propulsive-life transports is ...
Cochrane, J. A., Wilcox, D. E.
core  

Propulsive Performance of a 1 N 98% Hydrogen Peroxide Thruster

open access: yes, 2015
The present article reports the results of a test campaign performed on a 1 N monopropellant thruster powered by 98% Hydrogen Peroxide. The test campaign comprises firings at different feeding pressures and catalytic bed temperatures. The catalytic bed
Lucio Torre   +5 more
core   +1 more source

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