Results 91 to 100 of about 173,518 (269)

Dynamic Modulation of the Microenvironment Promotes Functional Maturation of Engineered Tissues

Advanced Healthcare Materials, EarlyView.
Engineered tissues lack the dynamic microenvironment of native tissues. A biocompatible, diffusible small molecule to dynamically modulate tissue microenvironments during maturation is used. Timing‐dependent modulation yields distinct outcomes, producing thicker, more native‐like blood vessels, stronger and more mature cardiac tissues, and optimized ...
Eric Silberman, Hadas Oved, Itay Gil, Amgad Marzook, Ester Sapir Baruch, Yahel Shechter, Assaf Shapira, Tal Dvir   +7 more
wiley   +1 more source

LED and CMOS Image Sensor Based Optical Wireless Communication System for Automotive Applications

IEEE Photonics Journal, 2013
An optical wireless communication (OWC) system based on a light-emitting-diode (LED) transmitter and a camera receiver has been developed for use in the automotive area.
Isamu Takai, Shinya Ito, Keita Yasutomi, Keiichiro Kagawa, Michinori Andoh, Shoji Kawahito   +5 more
doaj   +1 more source

The Optical Bar Code Detection Method Based on Optical Camera Communication Using Discrete Fourier Transform

IEEE Access, 2020
Optical camera communication (OCC) traditionally uses the bright and dark stripes of rolling shutter pattern captured by the complementary metal-oxide-semiconductor (CMOS) image-sensor to realize communication.
Yuchen Xiao, Weipeng Guan, Shangsheng Wen, Jingyi Li, Zeyang Li, Manxi Liu   +5 more
doaj   +1 more source

Teaching the concept of convolution and correlation using Fourier transform

, 2018
Convolution operation is indispensable in studying analog optical and digital signal processing. Equally important is the correlation operation. The time domain community often teaches convolution and correlation only with one dimensional time signals ...
Goodman, Smith
core   +1 more source

Optical Camera Communications: Future Approach of Visible Light Communication

The Journal of Korean Institute of Communications and Information Sciences, 2015
As an extension of Visible Light Communication, Optical Camera Communications (OCC) will be a promising service for smart devices. Especially in line of sight marketing service and indoor localization application, by using camera which exists in smart devices, small amount of data (url link) can be broadcasted or find direction from the illumination ...
Nam-Tuan Le, Trang Nguyen, Yeong Min Jang   +2 more
openaire   +2 more sources

Bioinspired Adaptive Sensors: A Review on Current Developments in Theory and Application

Advanced Materials, EarlyView.
This review comprehensively summarizes the recent progress in the design and fabrication of sensory‐adaptation‐inspired devices and highlights their valuable applications in electronic skin, wearable electronics, and machine vision. The existing challenges and future directions are addressed in aspects such as device performance optimization ...
Guodong Gong, You Zhou, Qingxiu Li, Wenyu Zhao, Sunyingyue Geng, Hangfei Li, Yan‐Bing Leng, Shirui Zhu, Guanglong Ding, Yongbiao Zhai, Ziyu Lv, Ye Zhou, Su‐Ting Han   +12 more
wiley   +1 more source

A Soft Microrobot for Single‐Cell Transport, Spheroid Assembly, and Dual‐Mode Drug Screening

Advanced Materials, EarlyView.
A soft, untethered hydrogel microrobot enables precise single‐cell delivery, self‐assembly into 3D spheroids, and real‐time thermal actuation. Driven by light‐induced convection and embedded with gold nanorods and temperature sensors, the microrobot guides cells, modulates local microenvironments, and supports drug testing.
Philipp Harder, Nergishan İyisan, Yukun Wang, Berna Özkale   +3 more
wiley   +1 more source

Light‐Driven Reconfigurable Logic in a Monolithic Perovskite Device via Nonlinear Photoresponse Switching

Advanced Materials, EarlyView.
This study demonstrates a monolithic perovskite OELG device that performs all eight logic operations, including XOR and XNOR, without external bias. Enabled by trap‐engineered MAPbI3:PLL and dual photogates, it achieves reconfigurable logic and parallel decoding of amplitude–frequency signals, supporting scenario‐configured logic‐level separation for ...
Dante Ahn, Youngsoo Jang, Minz Lee, WooKyung Jeon, Yohan Yoon, Heon Lee, Assa Aravindh Sasikala, Namsoo Lim, Chandran Balamurugan, Hyeonghun Kim, Gun‐Young Jung, Sooncheol Kwon, Minah Seo, Yusin Pak   +13 more
wiley   +1 more source

Improved Low-Complexity Demodulation: Integrating Minimum-Mean-Square-Error and Maximum-Likelihood Detection for Image-Sensor-Based Visible Light Communication

IEEE Access
This study proposes an improved low-complexity signal demodulation method for a visible light communication (VLC) system with an image sensor as a receiver and light-emitting diode (LED) transmitters.
Yuki Ohira, Shintaro Arai, Kengo Fujii, Tomohiro Yendo   +3 more
doaj   +1 more source

Color-Shift Keying for Optical Camera Communication Using a Rolling Shutter Mode

IEEE Photonics Journal, 2019
An optical camera communication (OCC) is a special type of a visible light communication that uses a complementary metal-oxide semiconductor as a receiver. However, it is difficult to apply a high-order modulation scheme to such communications because of
Hao-Wei Chen, Shang-Sheng Wen, Xing-Lin Wang, Ming-Zhu Liang, Mu-Yun Li, Qing-Chang Li, Yun Liu   +6 more
doaj   +1 more source