Results 101 to 110 of about 13,584 (301)

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

open access: yesAdvanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth   +6 more
wiley   +1 more source

Phenomenological and Physically Based Modeling of Flow Stress and Strengthening Mechanism of Inconel 718

open access: yesAdvanced Engineering Materials, EarlyView.
Nickel‐based alloys are widely used in high‐temperature applications due to their excellent mechanical strength and oxidation resistance. However, properties such as high‐temperature strength and pronounced work‐hardening make them difficult to machine.
Soheil Rooein   +2 more
wiley   +1 more source

Enhancing performance of shipboard photovoltaic grid-connected inverter through CRNN-LM-BP control optimized by particle swarm optimization of LCL parameters

open access: yesEngineering Science and Technology, an International Journal
The global renewable energy portfolio is experiencing a growing proportion of shipboard photovoltaic (PV) energy. Grid-connected system has become the development trend of photovoltaic power generation technology in marine applications because of its ...
Hui Hwang Goh   +7 more
doaj   +1 more source

Induction of NEDD4 under simulated microgravity

open access: yesThe FASEB Journal, 2008
Vascular endothelial cells are exposed to mechanical forces e.g. wall shear stress, wall tension, and pulsatile stretch, which are modulated by the gravitational field. The effects of microgravity may influence endothelial cell function including protein synthesis and degradation.Therefore, this study was designed to investigate microgravity dependent ...
Katarzyna Fiedorowicz   +3 more
openaire   +1 more source

Combined Process‐ and Phase‐Field‐Simulation to Predict the Microstructure of Single‐Crystal Ni‐Based Superalloys

open access: yesAdvanced Engineering Materials, EarlyView.
A combined finite element and phase‐field approach predicts the evolution of microstructure during the directional solidification of Ni‐based superalloys. The model reveals how withdrawal rate, temperature gradient, and wall thickness control the dendrite spacing, highlighting the strong effect of surface regions in thin sections where dendrite growth ...
Sean Böhm   +3 more
wiley   +1 more source

Fault Ride Through Capability Enhancement of a Large-Scale PMSG Wind System with Bridge Type Fault Current Limiters

open access: yesAdvances in Electrical and Computer Engineering, 2018
In this paper, bridge type fault current limiter (BFCL) is proposed as a potential solution to the fault problems of permanent magnet synchronous generator (PMSG) based large-scale wind energy system.
ALAM, M. S., ABIDO, M. A. Y.
doaj   +1 more source

Development of an electrical model of a resistive micromegas [PDF]

open access: yes, 2013
We have developped a model to simulate the behavior of a resistive micromegas (MICROMEsh GAseous Structure) detector to a discharge using an electronic software (Virtuoso)
Samarati, J.
core  

Thermophysical Properties of the Desulphurization Slags With Various CaS and CaO/Al2O3 Ratio

open access: yesAdvanced Engineering Materials, EarlyView.
This article investigates how CaS content and the CaO/Al2O3 ratio influence the thermophysical properties of desulphurization slags. Using experimental measurements and thermodynamic simulations, this study reveals complex effects on viscosity, surface tension, and density, providing new insight into slag structure and phase behavior under ...
Eldar Salpagarov   +4 more
wiley   +1 more source

Influence of an Oxygen‐Free Atmosphere on Diamond‐Single‐Grain Scratching of Ti–6Al–4V

open access: yesAdvanced Engineering Materials, EarlyView.
Single‐grain scratching of Ti–6Al–4V is investigated under controlled, oxygen‐free, and ambient atmospheres using a novel experimental setup with in situ high‐speed imaging. The approach enables direct observation of chip formation and adhesion under suppressed oxidation.
Berend Denkena   +2 more
wiley   +1 more source

Modeling and simulation of SEPIC converter based solar simulator circuit for accurate testing and analysis under varying solar radiation conditions

open access: yesJournal of Radiation Research and Applied Sciences
As photovoltaic (PV) systems continue to grow in both industrial and residential applications, the need for accurate and reliable testing methodologies become increasingly important.
Göksel Gökkuş, Mustafa Sacid Endiz
doaj   +1 more source

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