Results 61 to 70 of about 41,996 (315)
Tikrit Journal of Engineering Sciences, 2007 A theoretical and experimental study on the transient natural convection heat transfer across an eccentric horizontal annulus under the condition of constant surface temperature was carried out. The numerical study was carried out using the computational
Omer Khalil Ahmad
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Harnessing Photo‐Energy Conversion in Nanomaterials for Precision Theranostics
Advanced Materials, EarlyView.Harnessing photo‐energy conversion in nanomaterials enables precision theranostics through light‐driven mechanisms such as photoluminescence, photothermal, photoelectric, photoacoustic, photo‐triggered surface‐enhanced Raman scattering (SERS), and photodynamic processes. This review explores six fundamental principles of photo‐energy conversion, recent
Jingyu Shi +4 more
wiley +1 more source
Advanced Materials, EarlyView.This study explores the novel sensing applications of water evaporation‐induced power generation, by using lignin/ZnO nanofibrous membranes for sensing airflow through output voltage variation. Obtained lignin/ZnO airflow sensors are self‐powered, precise, and quick‐responding, and can be used as wearable devices for breath monitor, surrounding ...
Yifei Zhan +7 more
wiley +1 more source
Dynamic Magnonic Crystals Based on Spatiotemporal Plasmon Excitation
Advanced Materials, EarlyView.Hybrid magnonic‐plasmonic metamaterials enabling spatiotemporal optical control of spin‐wave transport are demonstrated. These structures integrate periodic stripes of gold nanodisk arrays with low‐damping yttrium iron garnet films to realize dynamically reconfigurable magnonic crystals.
Nikolai Kuznetsov +3 more
wiley +1 more source
Electrochemistry CommunicationsNatural convection could arise even at ultra-low redox concentration solutions (1–10 mM). Models such as convection–diffusion layer model and spontaneous convection model have been established to describe this phenomenon.
Zichen Zhang +6 more
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Advanced Materials, EarlyView.The electronic configuration of Mn single‐atom sites is regulated from low‐spin to high‐spin states by embedding well‐defined molybdenum phosphide nanocrystals nearby (MoP@MnSAC‐NC). The electronic phosphide‐support interaction between MoP and Mn single atoms drives the electronic structure transition in Mn sites from low‐spin to high‐spin states, and ...
Zuyang Luo +9 more
wiley +1 more source
Advances in Mechanical Engineering, 2010 The natural convection heat transfer characteristics of Al 2 O 3 / water nanofluids comprised of 47 nm, Al 2 O 3 and water, with volume fractions ranging from 0.5% through 6%, has been investigated through a set of experimental measurements.
Calvin H. Li, G. P. Peterson
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Advanced Materials, EarlyView.Observation and detection of neurotransmitter dynamics in aqueous system has been hurdle for analytical fields due to its weak and reversible nature. A terahertz‐nanodisc metasurface which implements comprehensive detection over conformational change and selective sensing is introduced. Utilizing the THz regime photonics and biomimetic environment with
Taeyeon Kim +6 more
wiley +1 more source
Advanced Materials, EarlyView.This review discusses recent innovations in electrochemical CO2 reduction reactions (eCO2RR) and hydrogen evolution reaction cell designs. The latest advancements in in situ cells for operando characterization are also presented. Optimizations in flow patterns, membrane electrode assemblies, electrolyte engineering, and counter‐anodic reactions provide
Zhangsen Chen +3 more
wiley +1 more source
Experimental study in natural convection
Global Journal of Pure and Applied Sciences, 2015 The study of thermal and ventilation parameters, obtained in a transient, laminar solar chimney of reduced dimensions, (1 < m <3) m with a square collector (side = 2m) is presented. Experimental measurements has been made to determine the temperature of the absorber and the fluid in the collector, it is shown that at the entrance of the chimney ...
M. Ousmane +5 more
openaire +4 more sources