Results 51 to 60 of about 2,682,376 (278)
Boundary‐Dependent Sleep–Wake Dysregulation in Idiopathic Hypersomnia
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective Idiopathic hypersomnia (IH) presents with excessive daytime sleepiness (EDS) despite apparently preserved nocturnal sleep, challenging traditional models of hypersomnolence based on sleep loss or fragmentation. We aimed to test the hypothesis that EDS in IH reflects excessive stabilization of the sleep state, consistent with ...
Samantha Mombelli +13 more
wiley +1 more source
Design and Manufacturing Challenges in PEMFC Flow Fields—A Review
EnergiesProton exchange membrane fuel cells are a prime choice for substitute electricity producers. Membrane electrode assembly (MEA), bipolar electrodes, and current collectors belong to only a limited number of primary parts of the proton exchange membrane ...
Prithvi Raj Pedapati +5 more
doaj +1 more source
Arthritis Care &Research, EarlyView.Objective Systemic sclerosis (SSc) is characterized by cardiovascular risk excess not fully explained by traditional factors. Whether the severity of microvascular damage correlates with structural subclinical atherosclerosis remains unclear. We investigated the relationship between nailfold videocapillaroscopy (NVC) abnormalities and carotid ...
Eugenio Capparelli +13 more
wiley +1 more source
AerospaceFlow boiling heat transfer in micro-channels under hypergravity conditions is a crucial research area for developing efficient cooling systems in aerospace applications.
Gen Li +4 more
doaj +1 more source
Computational Study on the Effect of Paddle Number of Optical Micro-Rotors on the Mixing Performance
Journal of Fluid Science and Technology, 2007 The mixing performance of optical micro-rotors, which were invented as an active micromixer, is studied by the aid of CFD simulations. Our focus in this paper is on the effects of paddle number (3,4 and 5) of the rotors. Fluid torque acting on the rotors
Yoshifumi OGAMI, Thien X. DINH
doaj +1 more source
Four-segmented design method and numerical simulation of LNG micro-channel vaporizer
You-qi chuyun, 2022 Micro-channel vaporizer has the advantages of high heat exchange efficiency, high pressure resistance and compact structure, and has broad application prospect as an LNG vaporizer.
Yan SHEN +4 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.This study examines how helicoidal architectures with different porosities respond to bending. Adjusting layer angle and spacing in 3D‐printed polymers reveals clear tradeoffs between stiffness, strength, and energy absorption. Experiments and simulations highlight designs that distribute stress effectively, offering pathways for optimizing lightweight
Praveenkumar Subhash Patil +2 more
wiley +1 more source
Experimental Investigation of Al2O3 Nano-Powder-Mixed Dielectric in EDM-Assisted Micro-Milling
MicromachinesThis paper investigates the use of Al2O3 nano-powder-stirred micro-EDM process for generating micro-channels. This study focuses on the effect of critical machining process parameters, such as capacitance levels and nano-powder concentration, on the ...
Sharad Yadav +5 more
doaj +1 more source
Micromachines, 2020 Hydrodynamic cavitation has been widely applied in micro-fluidic systems. Cavitating flow characteristics are closely related to the fluid properties.
Tao Li +5 more
doaj +1 more source
Self‐Cleaning Sensor Surfaces for Long‐Term Environmental Monitoring
Advanced Engineering Materials, EarlyView.Long‐term use of unattended outdoor sensors without soiling or biofouling is achieved through generation of a micro‐ and nanorough cuvette surface by combing hydrophobic nanoparticles with fluorinated polymers, crosslinked and surface‐attached through CHic chemistry. The coating demonstrates self‐cleaning behavior and prolonged outdoor stability, which
Sanam Kumari Rajak +4 more
wiley +1 more source