Results 101 to 110 of about 4,852,844 (283)

Improving Laser Speckle Imaging Technology

, 2022
I work at the Institute for Computer Science and Control (SZTAKI), where my research group recently started to explore the field of laser speckle imaging with a focus on improving Laser Speckle Contrast Imaging (LSCI).
Imre Janoki
core   +1 more source

Unlocking Terahertz Steganography: Authentication of Hidden Images in Flexible Media

Advanced 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, Francesca Vittorioso, Dimitrios C. Zografopoulos, Romeo Beccherelli, Walter Fuscaldo   +4 more
wiley   +1 more source

Microscale 3D‐Printed Digital Strain Switches for Embedded Mechanical Computation

Advanced Materials Technologies, EarlyView.
Microscale 3D‐printed strain switches on flexible films convert deformation into native digital signals at geometry defined thresholds. A closed form model predicts switching from 3000 to 15 000 microstrain and is validated across 110 devices. Reliable ohmic closure and strain activated AND, OR, and XOR logic point toward low‐power mechanical ...
Regan Kubicek, Daniel Quinn, Gabriel Smith, Sarah Bergbreiter   +3 more
wiley   +1 more source

Exploratory thermal and laser speckle contrast imaging measurements of eye inflammation in a case of thyroid eye disease

, 2014
A case study is presented which shows the potential value of thermal imaging (TI) and laser speckle contrast imaging (LSCI) to assess inflammation in thyroid eye disease (TED)
Dickinson, J., Perros, P., Di Maria, C., Allen, J.; id_orcid, Costanzo Di Maria   +4 more
core   +1 more source

Thermoresponsive Self‐Healing Carbon Nanotube‐Reinforced Dual‐Network Hydrogels for Wearable Sensors and Information Concealment

Advanced Materials Technologies, EarlyView.
A CNT‐reinforced dual‐network hydrogel combines ionic liquid‐mediated thermoresponsiveness, dynamic covalent crosslinking, and conductive nanostructures within a single adaptive material. The hydrogel exhibits ultrafast gelation, autonomous self‐healing, >1000% stretchability, reversible optical switching, and stable electromechanical sensing, enabling
Xia Qiu, Xiaolong He, Paul Morandi, Petra Rudolf, Rudy Folkersma, Vincent S. D. Voet, Katja Loos   +6 more
wiley   +1 more source

Dynamics of laser speckle imaging of blood flow in the tissues at partial temporary pancreatic ischemia of hungry, fed and alcoholized rats [PDF]

Саратовский научно-медицинский журнал, 2016
The aim of the study is to determine the influence of a partial temporary ischemia and reperfusion on the development of pancreatitis in laboratory rats. Material and Methods. The experiments were performed on 73 white rats.
Alexandrov D.A., Timoshina P.A., Tuchin V.V., Maslyakova G.N., Palatova T.V., Sedov D.S., Izmailov R.R.   +6 more
doaj  

Dynamic Fluorescence Modulation via Light‐Driven Competitive Protonation

Advanced 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, Moritz E. Kleybolte, Colin van Dyck, Sergey I. Vagin, Preeti Gahtori, Antonio Scarpati, Razieh Firouzihaji, Diogo A. Galico, Ulrich S. Schubert, Julianne Gibbs, Alkiviathes Meldrum   +10 more
wiley   +1 more source

Ear swelling test by using laser speckle imaging with a long exposure time [PDF]

, 2014
Laser speckle imaging with long exposure time has been applied noninvasively to visualize the immediate reaction of cutaneous vessels in mice in response to a known primary irritant and potential allergen-methyl salicylate.
Harmelin, Alon, Kuznetsov, Yuri, Meglinski, Igor, Kalchenko, Vyacheslav, Preise, Dina   +4 more
core   +1 more source

Cross‐Scale Hierarchical Targeted Delivery System Based on Small‐Scale Magnetic Robots

Advanced Robotics Research, EarlyView.
This article reviews a cross‐scale hierarchical targeted delivery system that integrates magnetic continuum robots and magnetic microrobots. By combining rapid long‐range navigation with precise microscale targeting, the system overcomes key limitations of single‐scale approaches.
Junjian Zhou, Zhiqiang Chen, Yuanbiao Ma, Zhiqiang Tang, Qianqian Wang   +4 more
wiley   +1 more source

Magnetic Micro‐ and Nanorobots for Precision Thrombolysis: Design Strategies and Translational Challenges

Advanced Robotics Research, EarlyView.
Micro‐ and nanorobots for targeted thrombolysis. This perspective elaborates on the clinical indication of blood clot disorders and current limitations for treatment. As a novel, alternative solution, micro‐ and nanorobots can be used to treat and break down thrombi.
Joshua M. Mesfin, Yimo Yan, Nikola Cesarovic, Simone Schuerle   +3 more
wiley   +1 more source