Results 241 to 250 of about 45,656 (289)

A Low‐Cost, Handheld Optical Stiffness Sensor for Minimally Invasive Surgery

open access: yesAdvanced Robotics Research, EarlyView.
A novel handheld stiffness sensor is presented for real‐time tissue stiffness characterization. By simultaneously sensing contact force and tissue deformation, the device enables accurate stiffness quantification without requiring precise manual control. This approach offers a promising solution for intraoperative tumor detection and minimally invasive
Qianyu Ma   +4 more
wiley   +1 more source

In Vivo Microplastic Detection With Photoacoustic Imaging

open access: yesAdvanced Science, EarlyView.
ABSTRACT Microplastics are posing an escalating threat to both ecological systems and human health. Yet, current methods for investigating their bioaccumulation are highly invasive, requiring destructive analysis of ex vivo tissues via mass spectrometry, dye labelling, or Raman microspectroscopy.
Joseph C. Bear   +9 more
wiley   +1 more source

A survey on OFDM physical layer security [PDF]

open access: yesPhysical Communication, 2019
Abstract Physical Layer Security (PLS) is an emerging paradigm employed to enhance wireless network security without relying on higher-layer encryption techniques. PLS enables legitimate users to exchange confidential messages over a wireless medium in the presence of adversaries, by utilizing the main properties and characteristics of the wireless ...
Reem Melki   +3 more
openaire   +2 more sources

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