Results 71 to 80 of about 973,945 (301)

Stabilization of Strongly Reduced Fe(I) Single Atom Species Coordinated in a 2D Self‐Assembled Metal–Organic Network

open access: yesAdvanced Functional Materials, EarlyView.
A graphene‐supported 2D metal–organic network stabilizes highly reactive Fe(I)‐N4 single sites through Co‐induced charge redistribution. Combined experiments and theory reveal Fe(I) formation, oxygen‐driven oxidation, and O2 activation mechanisms, offering a strategy to access low‐valent iron centers relevant to catalytic and biological processes ...
Alessandro Namar   +9 more
wiley   +1 more source

Passive-dynamic wind tunnel tests of the Ø resund Bridge cables [PDF]

open access: yes, 2012
Large amplitude vibrations have been reported from the Ø resund Bridge especially concomitant with rain events. A novel study of the aerodynamic damping of the cables has been carried out through wind tunnel tests. A configuration has been selected based
Mattiello, Emanuele
core  

Nitrospinics: Nitride Materials for Spin‐Orbit and Orbital Torques From Memory to Artificial Intelligence

open access: yesAdvanced Functional Materials, EarlyView.
Further advances in applications can be anticipated through the development of unique and functional materials beyond conventional alloys. Nitrogen enables tailor‐made orbital textures in various transition‐metal hosts, paving the way for devices ranging from spintronics memory to artificial intelligence hardware.
Prabhat Kumar   +3 more
wiley   +1 more source

Flow around twin rough cylinders at low wind incidence: bi-stability and gap flow [PDF]

open access: yes, 2022
Wind tunnel experiments are performed on twin rough cylinders with a centre-to-centre spacing ratio L/D = 1.2 at two different Reynolds numbers, Re = 45k and 275k, corresponding to the sub- and post-critical flow regimes, respectively. The wind incidence
Di Silvestro, Elena   +2 more
core   +1 more source

Unravelling Bangalore's air quality during the second wave: Multifaceted analysis of COVID-19 lockdown impact

open access: yesNatural Hazards Research
This study assesses the impact of the second wave COVID-19 lockdown (March–June 2021) on air pollution levels in Bangalore, India, using real-time data from eight CPCB monitoring stations across the city.
Iranna Gogeri   +2 more
doaj   +1 more source

Fluid–structure interaction study of three-dimensional vehicle model under crosswind

open access: yesAdvances in Mechanical Engineering, 2015
It is very important to study fluid–structure interaction of vehicles which move in strong crosswind environment. For solving a fluid–structure interaction problem, the effect of the deformation and vibration of the elastic body on the flow field should ...
Hui Zhu, Yang Zhigang
doaj   +1 more source

Multidimensional‐Encoded High‐Fidelity Spectrometers With a Floating‐Base Bipolar Junction

open access: yesAdvanced Functional Materials, EarlyView.
A floating‐base bipolar junction photodetector enables multidimensional spectral encoding through synergistic gate‐ and drain‐bias modulation of interfacial barrier matching. The resulting complementary spectral responses form a diverse, weakly correlated response matrix, enabling robust and high‐fidelity spectral reconstruction even at sub‐nanoampere ...
Sang‐Hyeon Lee   +11 more
wiley   +1 more source

Emergence of a Hexagonal Fe2S2 Single Layer Without a Bulk Counterpart via Phase Transformation

open access: yesAdvanced Functional Materials, EarlyView.
Upon annealing, single‐layer Mackinawite iron sulfide transforms into a previously unknown hexagonal Fe2S2${\rm Fe}_2{\rm S}_2$ phase with β$\beta$‐CuI structure. STM, LEED, and first‐principles calculations identify the structure and show that electronic correlations and magnetic order are important for its stability.
Affan Safeer   +10 more
wiley   +1 more source

Wind Tunnels

open access: yes, 2011
Although great advances in computational methods have been made in recent years, wind tunnel tests remain essential for obtaining the full range of data required to guide detailed design decisions for various practical engineering problems. This book collects original and innovative research studies on recent applications in wind tunnel tests ...
openaire   +3 more sources

NeuroVisio SyncPatch: A Skin‐Conformal Multimodal EMG–Motion Sensing Platform for Quantitative Neuromuscular Rehabilitation and Performance Monitoring

open access: yesAdvanced Healthcare Materials, EarlyView.
NeuroVisio SyncPatch integrates skin‐conformal electromyography (EMG) electrodes with camera‐tracked markers to jointly assess muscle activity and three‐dimensional knee kinematics during rehabilitation. Parallel feedback pathways provide real‐time kinematic guidance during movement and post‐trial neuromuscular feedback.
Bohyung Choi   +11 more
wiley   +1 more source

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