Results 241 to 250 of about 1,187,567 (409)

Stochastic Volatility. [PDF]

open access: yes, 2005
Stochastic volatility (SV) is the main concept used in the elds of nancial economics and mathematical nance to deal with the endemic time-varying volatility and codependence found in nancial markets. Such dependence has been known for a long time.
openaire   +2 more sources

Enhancing Ultrasound Power Transfer: Efficiency, Acoustics, and Future Directions

open access: yesAdvanced Materials, EarlyView.
Implantable devices significantly enhance healthcare but are limited by battery life. Ultrasound power transfer technology offers a promising solution for sustainable operation. This review addresses gaps in current research, particularly in sound field analysis and energy efficiency optimization.
Yi Zheng   +6 more
wiley   +1 more source

Optoelectronic Devices for In‐Sensor Computing

open access: yesAdvanced Materials, EarlyView.
The raw data obtained directly from sensors in the noisy analogue domain is often unstructured, which lacks a predefined format or organization and does not conform to a specific data model. Optoelectronic devices for in‐sensor visual processing can integrate perception, memory, and processing functions in the same physical units, which can compress ...
Qinqi Ren   +7 more
wiley   +1 more source

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