Results 61 to 70 of about 86,791,480 (239)

Design and fabrication of an ac-electro-osmosis micropump with 3D high-aspect-ratio electrodes using only SU-8 [PDF]

, 2011
Lab-on-a-chip devices require integrated pumping and fluid control in microchannels. A recently developed mechanism that can produce fluid flow is an integrated ac-electro-osmosis micropump.
Madou, Marc J, Green, Nicolas G, Zaouk, Rabih B, Hamza A Rouabah, Hywel Morgan, Morgan, Hywel, Nicolas G Green, Park, Benjamin Y, Rabih B Zaouk, Benjamin Y Park, Rouabah, Hamza, Marc J Madou   +11 more
core   +1 more source

Photothermocatalytic conversion of CO2 by LDHs@AC composites

Results in Engineering
The key to photocatalytic conversion of CO2 is to improve the efficiency of solar energy utilization. Numerous studies have been devoted to modulating the forbidden bandwidth of photocatalytic materials, thereby altering the response of catalysts to ...
Ruiqi Li, Jie Ling, Dongqiang Lei
doaj   +1 more source

Heterotropic regulation and negative homotropic cooperativity

FEBS Open Bio, EarlyView.
We identified a structural module common to some proteins that couple negative cooperativity with heterotropic regulation, two features that rarely coexist. These proteins are ring‐like and present an ordered asymmetry whereby noncontacting subunits are symmetric, and their tertiary structure differs from that of contacting subunits.
Veronica Morea, Francesco Angelucci, Federica Arnesano, Gianmarco Pascarella, Patrizio Di Micco, Andrea Bellelli   +5 more
wiley   +1 more source

Application of AC-AC Frequencyconversion Technology Based on SIMADYN-D Controller in Mine Hoist

Gong-kuang zidonghua, 2010
In order to solve the problem of capacity expanding of electric control system of mine hoist, an application scheme of AC-AC frequency-conversion with vector control based on SIMADYN-D controller and homemade power cabinet was proposed and the interface ...
ZHOU Yu-song, SUN Xiao-juan
doaj  

Structural and biochemical insights into the thermostable esterase Ta0887 from Thermoplasma acidophilum

FEBS Open Bio, EarlyView.
In this study, a novel esterase from the thermoacidophilic archaeon Thermoplasma acidophilum was biochemically and structurally characterized. Our results demonstrate that Ta0887 is a highly thermostable esterase that preferentially hydrolyzes p‐nitrophenyl hexanoate and possesses an α‐helical cap domain that likely contributes to its substrate ...
Alejandro Delgado‐Rey, Miriam Livier Llamas‐García, Gabriela M. Montero‐Morán, Leticia Santos, Samuel Lara‐González   +4 more
wiley   +1 more source

Intelligent tuned PID controller for wind energy conversion system with permanent magnet synchronous generator and AC-DC-AC converters

IAES International Journal of Robotics and Automation (IJRA), 2019
This paper presents the intelligent tuned PID controller-based Single Ended Primary Inductor Converter (SEPIC) for Maximum Power Point Tracking (MPPT) operation of Wind Energy Conversion System (WECS). As the voltage and frequency of the Permanent Magnet Synchronous Generator (PMSG) varies with the wind speed changes, Intelligent controlled SEPIC is ...
Muthukumari, T., Raghavendiran, T. A., Kalaivani, R., Selvaraj, P.   +3 more
openaire   +3 more sources

Multiple Sclerosis Relapse Activity After Ozanimod Discontinuation in DAYBREAK Trial Participants

Annals of Clinical and Translational Neurology, EarlyView.
Multiple Sclerosis Relapse Activity After Ozanimod Discontinuation in DAYBREAK Trial Participants. ABSTRACT Objective Return of disease activity is expected when patients discontinue disease‐modifying therapy (DMT) for multiple sclerosis (MS). Some MS DMTs are associated with higher‐than‐expected disease activity (rebound) after discontinuation.
Ralf Gold, Krzysztof W. Selmaj, Regina Berkovich, Jeffrey A. Cohen, Giancarlo Comi, Eva K. Havrdová, James K. Sheffield, Hetal Desai, Chun‐Yen Cheng, Jon V. Riolo, Andrew Thorpe, Erik DeBoer, Bruce A. C. Cree   +12 more
wiley   +1 more source

MOGAD Is the Most Common Cause of Isolated Optic Neuritis in Children

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objectives The study aimed to characterize the clinical features, etiologies, and outcomes of isolated, first‐time pediatric ON in the post‐MOG‐IgG era. Methods This was a single‐center retrospective cohort study at Texas Children's Hospital of patients diagnosed with first‐time ON between 2018–2024, with follow‐up data collected through 2025.
Chaitanya Aduru, Akansha Chandrasekar, Kyla Blasingame, Jonathan Rosen, Jesse M. Levine, Karla Salazar, Madhuri Chilakapati, Rod Foroozan, Victoria Hardwick, Jonathan M. Yarimi, Nikita Shukla, Timothy E. Lotze, Kristen S. Fisher, Alexander J. Sandweiss   +13 more
wiley   +1 more source

Feasibility of high-frequency alternating current power for motor auxiliary loads in vehicles

, 2011
This paper presents a feasibility study into the application of a 100-V, 50-kHz high-frequency ac (HFAC) network for powering automotive electrical auxiliaries. The study is focused on motor-actuated loads and is divided into two sections.
Nicholas D. Vaughan, James Marco, Marco, James, Antaloae, Ciprian C., Vaughan, Nicholas D., Ciprian C. Antaloae   +5 more
core   +1 more source

SINGLE PHASE AC to AC CONVERSION WITHOUT FREQUENCY RESTRICTIONS

, 2019
Single Phase AC to AC conversion finds various applications in domestic drive systems, street- light dimmers and fan regulators. Conventionally, this conversion is done by using thyristor based power electronic circuits such as AC Voltage Controllers and Cyclo-Converters.
openaire   +1 more source