Results 121 to 130 of about 166,033,218 (291)

Intermediate Resistive State in Wafer‐Scale Vertical MoS2 Memristors Through Lateral Silver Filament Growth for Artificial Synapse Applications

open access: yesAdvanced Functional Materials, EarlyView.
In MOCVD MoS2 memristors, a current compliance‐regulated Ag filament mechanism is revealed. The filament ruptures spontaneously during volatile switching, while subsequent growth proceeds vertically through the MoS2 layers and then laterally along the van der Waals gaps during nonvolatile switching.
Yuan Fa   +19 more
wiley   +1 more source

Regulated Ion‐Diffusion Hydrogels for Subtle and Multimodal Temperature‐Strain Sensing in Wound Monitoring

open access: yesAdvanced Functional Materials, EarlyView.
A soft, dual‐channel hydrogel patch enables simultaneous detection of wound temperature and strain by integrating ion‐diffusion‐mediated thermoelectric and resistive sensing. The conformal design maintains stable performance during motion, capturing subtle inflammatory and mechanical changes for continuous wound monitoring.
Yu Fang   +7 more
wiley   +1 more source

Techniques for the Determination of Local Dynamic Pressure and Angle of Attack on a Horizontal Axis Wind Turbine

open access: yes, 1995
Data from the National Renewable Energy Laboratory`s Combined Experiment has been utilized to develop techniques for indirectly calculating the instantaneous local dynamic pressure and angle of attack on a horizontal axis wind turbine. First, an analytic
Simms, D. A.   +4 more
core   +1 more source

Investigation of a NACA0012 Finite Wing Aerodynamics at Low Reynold’s Numbers and 0° to 90° Angle of Attack

open access: yesJournal of Aerospace Technology and Management, 2019
The aerodynamic characteristics of a NACA0012 wing geometry at low Reynold’s numbers and angle of attack ranging from 0° to 90° are investigated using numerical simulations and the results are validated by wind tunnel experiments. Further experiments are
Shahrooz Eftekhari   +1 more
doaj  

Omnipolar Magnetic Field Detection by Superlattice‐Based Hall Sensor

open access: yesAdvanced Functional Materials, EarlyView.
Magnetic‐field‐induced electronic switching is demonstrated in unit‐cell‐engineered La0.7Sr0.3MnO3–BiFeO3 superlattices. Distinct substrate terminations modify magnetic and transport properties. Hall resistance measurements show omnipolar, hysteretic anomalous Hall switching above the Curie temperature, arising from Fe─Mn interfacial exchange, enabling
Mark Huijben   +6 more
wiley   +1 more source

Angle of Attack Control for Running Robots

open access: yes, 2011
For running robots, angle of attack control is an important part of the controller, as the angle of attack has a large influence on the state of the running robot. Over the last 25 years, many angle of attack controllers have been introduced. However, it
Griffioen, K.E. (author)
core  

Effects of attack angle on performance of actively controlled high-rise building motion

open access: yes, 2010
Wind loading on high-rise buildings is complicated in nature, especially when across-wind motion caused by the vortex shedding effect is considered. Hence, wind tunnel tests serve as a reliable alternative for research on wind-induced vibration.
吳重成; Wu, Jong-cheng; Cheng, Liang-yi
core   +1 more source

Historical Foundation and Practical Guideline for Ferroelectric Switching Kinetic Studies

open access: yesAdvanced Functional Materials, EarlyView.
The P and U pulses in the conventional PUND measurements are not identical because of the interplay between switching current and the measurement circuit components. This circuit effect can lead to a shift in polarization transients and misinterpreted physics in the switching kinetics.
Yi Liang, Pat Kezer, John T. Heron
wiley   +1 more source

The robust roll control using only synthetic jet actuators in high-angle-of-attack flight

open access: yes, 2015
By taking NACA0015 airfoil as an example, we study synthetic jets' effect on the aerodynamic performance, then propose the ideas and concrete methods of using synthetic jet to flight roll control at high angle of attack, which replaces the ...
Jianying, Yang   +5 more
core   +1 more source

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