Results 121 to 130 of about 645,990 (304)

Characterization of a Recyclate‐Based MgO‐Steel Composite As‐Sintered Inert Anode Candidate After Exposure to Cryolite Electrolysis

open access: yesAdvanced Engineering Materials, EarlyView.
Carbon‐free inert anodes are essential for decarbonizing aluminum electrolysis. This study investigates a recyclate‐based MgO‐316L steel composite anode tested under galvanostatic Hall–Héroult conditions in cryolite at 1000°C. Microstructural analysis reveals selective MgO fluorination, spinel and oxide layer formation, electrolyte infiltration, and ...
Serhii Yaroshevskyi   +7 more
wiley   +1 more source

SPEED CONTROL OF (SEDM) ADOPTING CHOPPER CONVERTER AND PI CONTROLLER

open access: yesDiyala Journal of Engineering Sciences, 2015
This paper describes speed control of separately excited DC motor (SEDM) adopting Chopper converter and PI as speed and current controller. The chopper firing circuit receives signal from controller and then chopper gives variable voltage to the ...
Mohammed H. Ali
doaj  

Exploring Dipolar Dynamics and Ionic Transport in Metal‐Organic Frameworks: Experimental and Theoretical Insights

open access: yesAdvanced Functional Materials, EarlyView.
In this study, the interplay of dipolar dynamics and ionic charge transport in MOF compounds is investigated. Synthesizing the novel structure CFA‐25 with integrated freely rotating dipolar groups, local and macroscopic effects, including interactions with Cs cations are explored.
Ralph Freund   +6 more
wiley   +1 more source

motor dc

open access: yes
Penelitian yang dilakukan bertujuan untuk membuat sistem otomatisasi pengereman motor DC secara elektris yang digunakan sebagai referensi sistem keamanan mobil listrik. Dengan mengatur besar kecil tegangan yang diterima motor DC dan dengan menggunakan sensor ultrasonik jenis ping sebagai parameter tegangan yang diterima motor DC.
openaire   +1 more source

Speed Control of Separately Excited DC Motor using Neuro Fuzzy Technique [PDF]

open access: yes, 2010
This paper uses NEURO FUZZY TECHNIQUE in estimating speed and controlling it for a separately excited DC motor. The rotor speed of the dc motor can be made to follow an arbitrarily selected trajectory.
Baranwal, V, Kumar, S
core  

Bias‐Free Highly Efficient and Stable Dye‐Sensitized Photoelectrochemical Cells via Cascade Charge Transfer

open access: yesAdvanced Functional Materials, EarlyView.
A buried‐junction DSPEC design is introduced that leverages cascade charge transfer to enhance efficiency, stability, and versatility. This approach facilitates effective charge transfer and minimizes recombination losses, leading to significant improvements.
Jun‐Hyeok Park   +8 more
wiley   +1 more source

Adaptive PI Controller Based on a Reinforcement Learning Algorithm for Speed Control of a DC Motor. [PDF]

open access: yesBiomimetics (Basel), 2023
Alejandro-Sanjines U   +4 more
europepmc   +1 more source

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