Results 111 to 120 of about 1,410,138 (250)

Frequency-encoded eye tracking smart contact lens for human–machine interaction

Nature Communications
Eye tracking techniques enable high-efficient, natural, and effortless human-machine interaction by detecting users’ eye movements and decoding their attention and intentions.
Hengtian Zhu, Huan Yang, Siqi Xu, Yuanyuan Ma, Shugeng Zhu, Zhengyi Mao, Weiwei Chen, Zizhong Hu, Rongrong Pan, Yurui Xu, Yifeng Xiong, Ye Chen, Yanqing Lu, Xinghai Ning, Dechen Jiang, Songtao Yuan, Fei Xu   +16 more
doaj   +1 more source

Giant Nonequilibrium Valley Control via Spin‐Selective Hot‐Carrier Transfer in an Antiferromagnetic van der Waals Stack

Advanced Materials, EarlyView.
Spin‐selective hot‐carrier transfer across CrSBr/WSe2/CrSBr interfaces couples the continuously tunable magnetic configuration of antiferromagnetic CrSBr to the valley degrees of freedom of monolayer WSe2, enabling giant nonequilibrium valley control and magnetic‐state‐dependent reversal of circularly polarized emission.
Ke Xiao, Jiabao Yang, Kai Feng, Yicheng Guan, James Caleb Peters, Ramona Hoffmann, Niels Schröter, Stuart S. P. Parkin   +7 more
wiley   +1 more source

Investigating causal effects of pupil size on visual discrimination and visually evoked potentials in an optotype discrimination task

Frontiers in Neuroscience
Pupil size primarily changes to regulate the amount of light entering the retina, optimizing the balance between visual acuity and sensitivity for effective visual processing.
Hsin-Hua Chin, Hsin-Hua Chin, Ying-Hsuan Tai, Ying-Hsuan Tai, Rachel Yep, Yi-Hsuan Chang, Yi-Hsuan Chang, Chun-Hsien Hsu, Chin-An Wang, Chin-An Wang, Chin-An Wang   +10 more
doaj   +1 more source

Development of a robust active infrared‐based eye tracker

IET Computer Vision, 2014
Eye tracking has a number of useful applications ranging from monitoring a vehicle driver for possible signs of fatigue, providing an interface to enable severely disabled people to communicate with others, to a number of medical applications.
Reinier C. Coetzer, Gerhard P. Hancke
doaj   +1 more source

Microgels Enable iPSCs to Assemble, Expand, and Differentiate Into Organoids—From Sizable to High‐Throughput

Advanced Materials, EarlyView.
A chemically defined PEG‐based microgel platform enables scalable, reproducible production of three‐dimensional microgel‐iPSC constructs in multiple sizes. The system is compatible with high‐throughput automation and supports human iPSC expansion and differentiation within a single construct, including directed differentiation into cardiac organoids ...
Laura Klasen, Matthias Mork, Ramin Nasehi, Vasudha Turuvekere Krishnamurthy, Kira Zeevaert, Aaron Babendreyer, Jacopo Di Russo, Wolfgang Wagner, Laura De Laporte   +8 more
wiley   +1 more source

Band Alignment of Grafted Si/Ge0.89Sn0.11 Heterojunction Determined by X‐Ray Photoelectron Spectroscopy

Advanced Materials Interfaces, EarlyView.
ABSTRACT We investigate the band alignment of a monocrystalline grafted p‐type Si/Ge0.89Sn0.11 heterostructure using X‐ray photoelectron spectroscopy (XPS). The bandgap of the Ge0.89Sn0.11 epilayer of 0.50 eV was first determined and cross‐verified using photoluminescence spectroscopy, infrared transmission, and theoretical calculation.
Yang Liu, Yiran Li, Tsung‐Han Tsai, Sudip Acharya, Yi Lu, Jie Zhou, Samuel A. Haessly, Shui‐Qing Yu, Nanditha M. Dissanayake, Edward K. Huang, Jiarui Gong, Zhenqiang Ma   +11 more
wiley   +1 more source

Rapid Eye Movement Tracking System Based on FPGA and Projection Algorithm

工程科学与技术, 2016
:Assigning an eye task with visual stimulation and tracking the eye movement is a channel to acquire the examinees’ psychological behaviors, which plays a critical part in the fields of psychological research.
zouyunhai, Guan Pujun, Yang Bo, Gong Qiyong, Xing Haoyang   +4 more
doaj  

Hybrid Additive Manufacturing of Highly Stretchable Bottlebrush Polymer Nanocomposites by Decoupled Extrusion and Photopatterning

Advanced Materials Technologies, EarlyView.
A Hybrid Direct Ink Writing–Digital Light Processing (HDD) strategy decouples material extrusion from shape definition, enabling high‐fidelity additive manufacturing of highly viscous, yield‐stress polymer nanocomposites. Excess ink acts as a removable, self‐supporting scaffold, allowing fabrication of unsupported and embedded complex architectures ...
Shahryar Ramezani Bajgiran, Emmanuel Oduro, Daniel A. Rau, Li‐Heng Cai   +3 more
wiley   +1 more source

Laser‐Induced Local De‐Doping in Organic Semiconductors

Advanced Materials Technologies, EarlyView.
The polymer PBTTT‐C14 doped with the small molecule acceptor F4TCNQ is considered as a benchmark material system. Mask‐free, microscale patterning of the doping level via laser‐induced heating and sublimation of dopant molecules is shown. Controlling laser irradiance and swath spacing allows dopant level control with laser‐limited resolution, opening ...
Christian Rainer, Aleksandr Perevedentsev, Daniel Ryklin, Rasmus R. Schröder, Gerardo Hernandez‐Sosa, Uli Lemmer   +5 more
wiley   +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