Results 111 to 120 of about 79,712,677 (211)

Recent Advances of Slip Sensors for Smart Robotics

open access: yesAdvanced Materials Technologies, EarlyView.
This review summarizes recent progress in robotic slip sensors across mechanical, electrical, thermal, optical, magnetic, and acoustic mechanisms, offering a comprehensive reference for the selection of slip sensors in robotic applications. In addition, current challenges and emerging trends are identified to advance the development of robust, adaptive,
Xingyu Zhang   +8 more
wiley   +1 more source

Security and Trust in Mobile Multimedia

open access: yes, 2006
While security in general is increasingly well addressed, both mobile security and multimedia security are still areas of research undergoing major changes.
Weippl, Edgar
core  

Early Security Key Exchange for Encryption in Mobile IPv6 Handoff

open access: yes, 2011
Wireless equipment has become ubiquitous. However, in facing various software attacks, wireless linked networks are more vulnerable than wire linked networks. The general problem with Mobile IPv6 (MIPv6) (Table I) is the long handover latency period.
吳庭育; Lo, Chi-hsiang; Chao, Han-chieh
core   +1 more source

Unlocking Terahertz Steganography: Authentication of Hidden Images in Flexible Media

open access: yesAdvanced Materials Technologies, EarlyView.
Hidden information in multilayered devices, such as steganographic portraits, is detected and authenticated using reflection‐mode terahertz time‐domain imaging. Image reconstruction relies on a dedicated figure‐of‐merit obtained by integrating the signal intensity over the time‐window associated with the reflection from the metallic mirror backing the ...
Tiziana Ritacco   +4 more
wiley   +1 more source

Practical privacy and security for opportunistic networks [PDF]

open access: yes, 2014
When in physical proximity, data can be directly exchanged between the mobile devices people carry - for example over Bluetooth. If people cooperate to store, carry and forward messages on one another's behalf, then an opportunistic network may be formed,
Parris, Iain
core   +1 more source

Usability and Utility of a Mobile App to Deliver Health-Related Content to an Older Adult Population: Pilot Noncontrolled Quasi-Experimental Study

open access: yesJMIR Formative Research
BackgroundDigital patient-centered interventions may be important tools for improving and promoting social interaction, health, and well-being among older adults.
Marta Lemos   +10 more
doaj   +1 more source

Bioinspired Adaptive Artificial Cilia With Tunable Sensitivity and Dynamic Range for Airflow Monitoring in the Central Airway

open access: yesAdvanced Materials Technologies, EarlyView.
A magnetically reconfigurable airflow sensor integrated with an airway stent enables tunable sensitivity and dynamic sensing range. Airflow‐induced cantilever deformation generates resistance changes, while an external magnetic field modulates sensor stiffness, enhancing sensitivity at low airflow velocities and extending the sensing range at higher ...
Darren Wang   +10 more
wiley   +1 more source

Dynamic Fluorescence Modulation via Light‐Driven Competitive Protonation

open access: yesAdvanced Optical Materials, EarlyView.
A two‐component molecular system demonstrates reversible, light‐driven fluorescence write–erase cycling and thermal imaging. Illumination of a merocyanine photoacid transfers a proton to a highly efficient fluorescent pyridinium dye, switching its emission color; thermal relaxation reverses the process in the dark.
Serena X. Liu   +10 more
wiley   +1 more source

Use of mobile health units in conflict settings—a scoping review

open access: yesBMC Health Services Research
Background Mobile Health Units (MHUs) provide critical healthcare to underserved populations, however, their effectiveness in conflict settings remains unexplored.
Sarah Awad   +2 more
doaj   +1 more source

6G Privacy-Preserving Proximity Services: Zero-Trust Multi-Stakeholder Access With Attribute-Based Credentials Over PC5

open access: yesIEEE Open Journal of the Communications Society
The evolution toward 6G introduces a multi-stakeholder ecosystem in which diverse actors beyond traditional Mobile Network Operators (MNOs) must interoperate without pre-established bilateral trust agreements.
Rodrigo Asensio-Garriga   +4 more
doaj   +1 more source

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