Results 171 to 180 of about 25,989 (292)

Understanding the Stochastic Nature of Process Parameter Development of Blown Powder Laser Beam Directed Energy Deposition Additive Manufacturing of Pure Molybdenum

Advanced Engineering Materials, EarlyView.
Identified through the use of statistical design of experiments and metallographic investigation, this study exposes the stochastic origins of intergranular cracks in blown powder laser beam directed energy deposition additive manufacturing of pure molybdenum. It further demonstrates a successful crack mitigation approach with direct correlation to the
Nathaniel J. Lies, Daniel E. Driemeyer, Aaron P. Stebner   +2 more
wiley   +1 more source

Fractional-order PID control for elevation and azimuth in a twin rotor system. [PDF]

Sci Rep
Wendimu AA, Matušů R, Shaikh I, Kebede ZK.   +3 more
europepmc   +1 more source

Fractional order control in haptics

, 2015
Geleneksel kalkülüsün bir genelleştirmesi olan kesir dereceli kalkülüs, matematiksel modelleminin sınırlarını genişleten önemli bir araçtır. Bu çarpıcı matematiksel aracın etkinliği birçok uygulamada gözlemlenmiştir. Örneğin, viskoelastik malzemelerin başarılı bir şekilde modellenmesi, özellikle de frakansa dayalı esneklik ve sönu ...
openaire   +1 more source

Robust Spot Melting by 3D Spot Arrangements in Electron Beam Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
This work proposes an approach to replace separately melted contours for spot melting in electron beam powder fusion. Adapting the spot arrangements close to the contour combined with stacking yields a comparable surface quality without the inherent challenges of separate contours, as demonstrated, by electron optical images and roughness measurements.
Tobias Kupfer, Lukas Spano, Sebastian Pohl, Carolin Körner, Matthias Markl   +4 more
wiley   +1 more source

Enhanced maximum power point tracking using hippopotamus optimization algorithm for grid-connected photovoltaic system. [PDF]

Sci Rep
Taha SA, Abdulsada MA, Mohamed MAE, Alruwaili M, Emara A.   +4 more
europepmc   +1 more source

Parameter Variation in Planetary Ball Milling of Titanium Aluminide Powder in XHV‐Adequate Atmosphere

Advanced Engineering Materials, EarlyView.
This study investigates the effects of milling parameters, including rotational speed, milling duration, and ball‐to‐powder ratio, on TiAl particle size and morphology in an XHV‐equivalent atmosphere. The creation of oxide‐free surfaces enhances the mechanical properties of green bodies.
Jytte Möckelmann, Armin Piwek, Julius Peddinghaus, Kai Brunotte, Bernd-Arno Behrens   +4 more
wiley   +1 more source

Intelligent Control of Magnetic Ball Suspension Systems via a Novel Hyperbolic Tangent PID Controller Tuned by the Artificial Lemming Algorithm. [PDF]

Biomimetics (Basel)
Ekinci S, Izci D, Tümen V, Jabari M, Çelik E, Elrashidi A.   +5 more
europepmc   +1 more source

Numerical Exploration of Thermal Shock Resistance in MgO–C Refractories

Advanced Engineering Materials, EarlyView.
A mesostructure‐resolved numerical framework is developed to evaluate the thermal shock resistance of MgO–C refractories. By modeling interface debonding under rapid temperature changes and introducing a modified thermal shock parameter that accounts for mesocracks, the study shows how graphite content and aggregate size influence thermal shock ...
Jishnu Vinayak Gopi, Stephan Roth, Christos G. Aneziris, Bjoern Kiefer   +3 more
wiley   +1 more source

Hybrid Harris Hawks optimization with eagle strategy particle swarm optimization for stability and disturbance rejection in tethered UAV systems. [PDF]

Sci Rep
Ismael AK, Kurnaz S, Basil N.
europepmc   +1 more source

Multivariable fractional order controller design for a non-minimum phase system [PDF]

, 2014
Copot, Cosmin, De Keyser, Robain, Dulf, Eva H, Ionescu, Clara-Mihaela, Muresan, Cristina I   +4 more
core   +1 more source