Results 251 to 260 of about 85,823 (304)

Microscale Mapping of Fiber Strain and Damage in Composite Wrinkled Laminates Using Computed Tomography Assisted Wide‐Angle X‐Ray Scattering

open access: yesAdvanced Science, EarlyView.
This study combines full‐field tomography with diffraction mapping to quantify radial (ε002$\varepsilon _{002}$) and axial (ε100$\varepsilon _{100}$) lattice strain in wrinkled carbon‐fiber specimens for the first time. Radial microstrain gradients (−14.5 µεMPa$\varepsilon \mathrm{MPa}$−1) are found to signal damage‐prone zones ahead of failure, which ...
Hoang Minh Luong   +7 more
wiley   +1 more source

Time‐Multiplexed Organic Electrochemical Transistor for Saliva‐Based Rapid Detection of Viral Proteins

open access: yesAdvanced Science, EarlyView.
A time‐multiplexed nanobody‐functionalized organic electrochemical transistor enables rapid and sensitive detection of three respiratory viral proteins from saliva. Sequentially addressed multi‐gate electrodes on a shared channel achieve around 1 fm detection within 15 min without sample preprocessing. Clinical validation demonstrates high specificity,
Tianrui Chang   +13 more
wiley   +1 more source

Interfacial Engineering by Metallic Ions and Organic Ammonium Ligand Passivation for Perovskite Solar Cells

open access: yesAdvanced Science, EarlyView.
A synergistic approach using phenethylammonium iodide (PEAI) and antimony iodide (SbI3) enhances the operational stabilities of perovskite solar cells by providing p‐type doping effect, suitable band energy alignment, reduced defect density, and minimized surface ion vacancies in the perovskite films.
Abraham Adenle   +17 more
wiley   +1 more source

Remote sensing with ambient noise

SEG Technical Program Expanded Abstracts 2009, 2009
Ambient noise is ubiquitous in the ocean. For many years, this noise has been considered the unwanted part of the acoustic signal. However, recent studies have shown that the noise itself contains valuable information about properties of the ocean, Earth, and atmosphere. For example, distant storms have been observed using measurements of low-frequency
Peter Gerstoft, Martin Siderius
openaire   +1 more source

Intrusive Noise and the Ambient Noise Environment

The Journal of the Acoustical Society of America, 1970
The extent to which an intruding noise source penetrates the general ambient noise environment in a community, serves as a useful indicator of the likely reaction of the community to that noise source. Available techniques using this approach generally provide a measure of community response based upon the absolute difference in level between the ...
R. J. Sawley, C. G. Gordon
openaire   +1 more source

Ocean Ambient Noise

open access: yes, 2011
This book develops the theory of ocean ambient noise mechanisms and measurements, and also describes general noise characteristics and computational methods.
William M. Carey, Richard B. Evans
openaire   +2 more sources

Ambient noise statistics

IEEE Transactions on Signal Processing, 1993
Signal processing algorithms optimized for Gaussian noise may degrade significantly in a non-Gaussian noise environment. Therefore it is important to characterize the noise accurately before including its structure in the formulation of algorithms. A generic distribution suitable for modeling non-Gaussian ambient noise in the kurtosis range 1.8 >
openaire   +1 more source

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