Results 231 to 240 of about 2,214,189 (355)

The rank of elliptic curves

open access: yesDuke Mathematical Journal, 1977
Brumer, Armand, Kramer, Kenneth
openaire   +3 more sources

Natural Crystal Structure for Generating Raman‐Like Orbital Angular Momentum States

open access: yesAdvanced Science, EarlyView.
This work proposes a strategy for symmetry breaking of the degenerate OAM states relying on the natural anisotropy of crystal gain, to select the handedness of the spatial spiral phase front and further tunable Raman‐like OAM states by thermal‐driven, which clarifies the contribution of intrinsic crystal property to the OAM states and opens a new route
Tianxiang Meng   +4 more
wiley   +1 more source

Accurate and Noninvasive Dysphagia Assessment via a Soft High‐Density sEMG Electrode Array Conformal to the Submental and Infrahyoid Muscles

open access: yesAdvanced Science, EarlyView.
A stretchable, breathable, large‐area high‐density sEMG (HD‐sEMG) electrode array is reported, which enables seamless integration to the complex surface of the submental and infrahyoid muscles to detect high‐fidelity HD‐sEMG signals during swallowing.
Weijie Hong   +9 more
wiley   +1 more source

Wonders of Harbor and Grey Seal Whiskers: Morphology, Natural Frequencies, and 3D Modeling

open access: yesAdvanced Science, EarlyView.
Seals detect prey by sensing vortices using whiskers. How whisker morphologies and locations respond to hydrodynamic signals across various frequencies remains unclear. This study measures whiskers’ natural frequencies and morphologies and maps them to whisker locations on the muzzle, providing insights into how seals interpret hydrodynamic signals ...
Xingwen Zheng   +4 more
wiley   +1 more source

Low complexity smart grid security protocol based on elliptic curve cryptography, biometrics and hamming distance. [PDF]

open access: yesPLoS One
Mutlaq KA   +6 more
europepmc   +1 more source

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