Results 51 to 60 of about 14,355 (292)

Tailoring Functional Properties of Ti–Ni–Cu Shape Memory Alloy Thin Films for MEMS Actuators

Advanced Engineering Materials, EarlyView.
A comprehensive study of critical parameters required to develop well‐performing Ti–Ni–Cu thin film shape memory alloy microactuators is provided. Materials science and device integration aspects are integrated by addressing structural and physical relationships using complementary characterization techniques as well as a practical fabrication solution
Elaheh Akbarnejad, Aleksander Kostka, Gowtham Arivanandhan, Yujiao Li, Alan Savan, Manfred Kohl, Alfred Ludwig   +6 more
wiley   +1 more source

Film-Cooling Enhancement In High-Pressure Turbine Of An Aircraft Engine [PDF]

, 2022
This paper studies the effect of adding vortex generator (VG) at the upstream position of film-holes on a flat-plate simulated turbine blade surface. They are placed at three different positions (0.0m, 0.005m, 0.015m away from filmholes) to investigate ...
Al-Zurfi, Nabeel, Alhusseny, Ahmed, Nasser, Adel   +2 more
core   +2 more sources

Growth of non-polar (11-20) InGaN quantum dots by metal organic vapour phase epitaxy using a two temperature method

APL Materials, 2014
Non-polar (11-20) InGaN quantum dots (QDs) were grown by metal organic vapour phase epitaxy. An InGaN epilayer was grown and subjected to a temperature ramp in a nitrogen and ammonia environment before the growth of the GaN capping layer.
J. T. Griffiths, T. Zhu, F. Oehler, R. M. Emery, W. Y. Fu, B. P. L. Reid, R. A. Taylor, M. J. Kappers, C. J. Humphreys, R. A. Oliver   +9 more
doaj   +1 more source

The NEF-SPA Approach as a Framework for Developing a Neurobiologically Inspired Spiking Neural Network Model for Speech Production

Journal of Integrative Neuroscience, 2023
Background: The computer-based simulation of the whole processing route for speech production and speech perception in a neurobiologically inspired way remains a challenge.
Bernd J. Kröger
doaj   +1 more source

Experimental Investigation of Normal Shock Boundary-Layer Interaction with Hybrid Flow Control [PDF]

, 2012
Hybrid flow control, a combination of micro-ramps and micro-jets, was experimentally investigated in the 15x15 cm Supersonic Wind Tunnel (SWT) at the NASA Glenn Research Center.
Anderson, Bernhard H., Hirt, Stefanie M., Vyas, Manan A.   +2 more
core   +1 more source

The three-dimensional flow organization past a micro-ramp in a supersonic boundary layer [PDF]

Physics of Fluids, 2012
The three-dimensional instantaneous flow organization in the near wake of a micro-ramp interacting with a Mach 2.0 supersonic turbulent boundary layer is studied using tomographic particle image velocimetry. The mean flow reveals a wake with approximately circular cross section dominated by a pair of counter-rotating streamwise vortices generating a ...
Sun, Z. (author), Schrijer, F.F.J. (author), Scarano, F. (author), Van Oudheusden, B.W. (author)   +3 more
openaire   +4 more sources

In Situ Micromechanical Study of Bimodal γ′–γ″ Precipitate Assemblies in Ni–Cr–Al–Nb Superalloy

Advanced Engineering Materials, EarlyView.
A Ni–Cr–Al–Nb superalloy with a bimodal γ′–γ″ precipitate distribution is developed. Composite precipitate assemblies form through heterogeneous nucleation, effectively impeding dislocation motion. Micropillar compression reveals high strength at room and elevated temperatures, governed by precipitate shearing, with coupled faulting mechanisms ...
Ujjval Bansal, Tae‐Hyeok Kang, Pyuck‐Pa Choi, Subin Lee, Christoph Kirchlechner   +4 more
wiley   +1 more source

The Open acidification Tank Controller: An open-source device for the control of pH and temperature in ocean acidification experiments

HardwareX, 2023
Ocean acidification is the process by which the increase in atmospheric CO2 causes a corresponding increase in seawater CO2 and results in lowering the seawater pH.
Kirt L Onthank, James Foster, E. Preston Carman Jr, John E. Foster, Monica Culler-Juarez, Eliam Calvo, Wesley Duerksen, Trevor Natiuk, Lucas Saca   +8 more
doaj   +1 more source

Enhancing Optoelectronic Properties in Phthalocyanine‐Based SURMOFs: Synthesis of ABAB Linkers by Avoiding Statistical Condensation with Tailored Building Blocks

Advanced Functional Materials, EarlyView.
A novel phthalocyanine (PC)‐based metal–organic framework (MOFs) is synthesized using ditopic PC linkers obtained through regioselective statistical condensation. The resulting MOF exhibits significant improvements in electronic absorption, thereby enhancing the material's performance in light harvesting and energy conversion.
Lukas S. Langer, Mareen Stahlberger, Xiaojing Liu, Yi Luo, Niklas E. Häußermann, Puja Singhvi, Yidong Liu, Olaf Fuhr, Martin Nieger, Lars Heinke, Thomas Heine, Christof Wöll, Stefan Bräse   +12 more
wiley   +1 more source

Applying Caputo and Caputo–Fabrizio fractional derivatives on a viscothermoelastic circular microplate under Lord–Shulman theorem

AIP Advances
This study introduces a novel mathematical model to investigate heat conduction through a circular micro-plate that is isotropic, homogeneous, and viscothermoelastic. Based on the Kirchhoff–Love plate hypothesis, the governing differential equations have
Eman A. N. Al-Lehaibi
doaj   +1 more source