Results 61 to 70 of about 9,329,756 (290)

Analysis of An Improved Transmission Method by Using the Dimming Control Bit for Visible Light Communication Systems

, 2021
In the study, a new transmission scheme has been proposed for visible light communication (VLC) systems using the signal features of variable pulse position modulation (VPPM) technique.
Kubilay Muhammed SÜNNETCİ, Sunnetci, Kubilay Muhammed, Sonmez, Mehmet, Mehmet SONMEZ   +3 more
core   +1 more source

Azobenzene's Cross‐Scale Optics and Photonics: Molecular Photoswitching, Mesoscopic Material Motions, and Adaptive Devices

Advanced Materials, EarlyView.
Azobenzene photoswitches translate molecular‐scale E/Z photoisomerization into macroscopic material responses and device‐level photonic functions. This Review highlights how azobenzene research has evolved from molecular photochemistry to photoalignment, mass migration, photomechanics, and heat release, ultimately enabling holography, reconfigurable ...
Heeju Son, Soyul Kwak, Heerin Noh, Minsang Kim, Doyeon Noh, Subhayan Chakraborty, Jaewon Lee, YongDeok Cho, Kyeongsoo Kim, Taewoong Eom, Moonyoung Kim, Jangwon Kim, Hoyoung Lee, Soyoung Lee, Jaehun Kim, Grace G. D. Han, Shin‐Tson Wu, Stefano Oscurato, Arri Priimagi, Marina Saphiannikova, Seungwoo Lee   +20 more
wiley   +1 more source

Neuromorphic Electronics for Intelligence Everywhere: Emerging Devices, Flexible Platforms, and Scalable System Architectures

Advanced Materials, EarlyView.
The perspective presents an integrated view of neuromorphic technologies, from device physics to real‐time applicability, while highlighting the necessity of full‐stack co‐optimization. By outlining practical hardware‐level strategies to exploit device behavior and mitigate non‐idealities, it shows pathways for building efficient, scalable, and ...
Kapil Bhardwaj, Roshni Satheesh Babu, Yuxin Xia, Eva Bestelink, Radu Sporea, Nikos Hastas, Ioannis Zeimpekis, Dimitra G. Georgiadou, Sayani Majumdar   +8 more
wiley   +1 more source

Turning Light Into Matter: Programmable Microstructures Via Dose Control in Two‐Photon Polymerization

Advanced Optical Materials, EarlyView.
This work augments two‐photon polymerization with point‐wise dose control, enabling structures with heterogeneous material properties such as refractive index. An open source toolbox and superior calibration methodology for the refractive index pave the way for bio‐mimicking or numerically optimized structure designs, and enhance the synergy between 3D
Michał Ziemczonok, Koen Vanmol
wiley   +1 more source

Recommended control options of a daylight dimming system for daylit perimeter zones of open-planned office with curtain walls

Energy Reports
This study investigates control options of a daylight dimming system in an open-planned office for required lighting environments with lighting energy savings and acceptable glare ratings.
Joohyang Byun, Younju Yoon, Sooyoung Kim
doaj   +1 more source

A resonant multi-channel sharing current LED driver based on variable inductor

Journal of Hebei University of Science and Technology, 2017
In order to solve the problems of the traditional LED driver adopting the frequency control with high EMI, pulse width modulation (PWM) with the complex control circuit,and the LLCC, LCLC resonant topology realizing constant current output system with ...
Guozhuang LIANG, Hanlei TIAN, Xiaoyu XU
doaj   +1 more source

Segmentation-Based Clipped Error Control Algorithm for Global Backlight Dimming

, 2018
This paper presents a new backlight dimming method that applies segmentation-based clipped error control to liquid crystal displays. Clipped error control is the most important algorithm for power saving during backlight dimming.
Suk-Ju Kang, Kim, YH
core   +1 more source

Inhibition of IGFBP4 in Granulosa Cells Improves Reproductive Performance and Maintains Fertility With Age via YAP Signaling

Advanced Science, EarlyView.
IGFBP4 is upregulated in granulosa cells of aged ovaries across monkeys, mice, and humans. It inhibits YAP signaling, thereby suppressing cell proliferation and contributing to follicular dysfunction. Deletion of Igfbp4 in granulosa cells enhances ovulatory output, improves hormone profiles, and reproductive performance in aged female mice, suggesting ...
Qianhui Hu, Ajun Geng, Ziyuan Li, Fanghao Guo, Jingqiang Wang, Xinyi Chen, Meiling Zhang, Yi Arial Zeng, Wen Li   +8 more
wiley   +1 more source

Design of High Efficiency Illumination for LED Lighting

International Journal of Photoenergy, 2013
A high efficiency illumination for LED street lighting is proposed. For energy saving, this paper uses Class-E resonant inverter as main electric circuit to improve efficiency. In addition, single dimming control has the best efficiency, simplest control
Yong-Nong Chang, Hung-Liang Cheng, Chih-Ming Kuo   +2 more
doaj   +1 more source

Constant frequency, non‐isolated multichannel LED driver based on variable inductor

IET Circuits, Devices and Systems, 2021
To obtain the required LED‐driving current, variable frequency control directly leads to large reactive circulation, and the design of the electromagnetic interference circuit is more complex.
Guozhuang Liang, Hanlei Tian, Hetong Wang, Yiwen Xia, Xianyong Xiao   +4 more
doaj   +1 more source