Results 131 to 140 of about 1,888,942 (307)

Innovative Processing of Compacted Waste Aluminum Alloy Powders via Controlled Remelting and Solidification

open access: yesAdvanced Engineering Materials, EarlyView.
This study demonstrates an efficient recycling route for out‐of‐spec AlSi10Mg atomized powders through compaction and arc remelting followed by suction casting. By correlating compaction load, cooling rate, and resulting microstructure, we show that intermediate pressures (50–80 kN) and rapid cooling refine dendrites, reduce porosity, and enhance ...
Mila Christy de Oliveira   +4 more
wiley   +1 more source

A flight-test evaluation of a go-around control system for a twin engine powered-lift STOL airplane [PDF]

open access: yes
An automatic go-around control system was evaluated on the Augmentor Wing Jet Short Takeoff and Landing (STOL) Research Airplane (AWJSRA) as part of a study of an automatic landing system for a powered-lift STOL airplane.
Hardy, G. H., Watson, D. M.
core   +1 more source

NFDI MatWerk Ontology (MWO): A BFO‐Compliant Ontology for Research Data Management in Materials Science and Engineering

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents the NFDI‐MatWerk Ontology (MWO), a Basic Formal Ontology‐based framework for interoperable research data management in materials science and engineering (MSE). Covering consortium structures, research data management resources, services, and instruments, MWO enables semantic integration, Findable, Accessible, Interoperable, and ...
Hossein Beygi Nasrabadi   +4 more
wiley   +1 more source

An Automatic Speed Control for Wind Tunnels [PDF]

open access: yes
Described here is an automatic control that has been used in several forms in wind tunnels at the Washington Navy Yard. The form now in use with the 8-foot tunnel at the Navy Yard is considered here.
Zahm, A F
core   +1 more source

Prediction of Surface Topography Parameters in Direct Laser Interference Patterning of Stainless Steel Using Infrared Monitoring and Convolutional Neural Networks

open access: yesAdvanced Engineering Materials, EarlyView.
This study presents an infrared monitoring approach for direct laser interference patterning (DLIP) combined with a convolutional neural network (CNN). Thermal emission data captured during structuring are used to predict surface topography parameters.
Lukas Olawsky   +5 more
wiley   +1 more source

Hyperspectral imaging and K-means clustering for material structure classification and detection of unmanned aerial vehicles

open access: yesScientific Reports
Unmanned aerial vehicles (UAVs) have become increasingly widespread in a variety of industries due to their versatility and efficiency in applications such as agriculture, surveillance, logistics, and construction.
Amr Saber   +2 more
doaj   +1 more source

Energy-oriented architecture optimization method for aircraft

open access: yesHangkong gongcheng jinzhan
Multi-electric/all-electric flight vehicles usually face problems such as the complexity of coupling between systems, the overall energy efficiency and the economic balance. An energy-optimal architecture optimization method for aircraft is proposed.
SONG Yichuan   +4 more
doaj   +1 more source

Automatic exposure control for space sequential camera [PDF]

open access: yes
The final report for the automatic exposure control study for space sequential cameras, for the NASA Johnson Space Center is presented. The material is shown in the same sequence that the work was performed.
Mcatee, G. E., Jr.   +3 more
core   +1 more source

Interaction between Molten Al‐Killed Mn–B Steel and Carbon‐Bonded MgO Refractories Based on Recyclates

open access: yesAdvanced Engineering Materials, EarlyView.
High‐temperature interactions between low‐sulfur Al‐killed Mn–B steel and MgO–C refractories (0 and 50 wt% recyclates) are studied via finger immersion tests (1600 °C). Surface‐active elements influence infiltration. MgO/CaS layer forms, along with spinel and calcium silicate.
Matheus Roberto Bellé   +5 more
wiley   +1 more source

Research status and development trend of silicon resonant MEMS accelerometer

open access: yesGongneng cailiao yu qijian xuebao
The silicon resonant MEMS (Micro-Electro-Mechanical System) accelerometer offers several advantages, including small size, high precision, low power consumption, and strong anti-interference capabilities, making it a highly promising high-precision MEMS ...
Jin-tao WANG   +6 more
doaj   +1 more source

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