Results 81 to 90 of about 22,297 (253)

Freeform Manufacturing of Plant‐Based Structural Colors for Scalable Photonic and Mechanochromic Devices

Advanced Materials, EarlyView.
A green, freeform manufacturing approach that utilizes robust aqueous two‐phase systems to create intricate and scalable photonic structures and non‐planar mechanochromic hydrogel actuators from plant‐based hydroxypropyl cellulose. This approach broadens the structural possibilities of sustainable photonic devices and mechanochromic systems, offering ...
Xiao Song, Peiqi Niu, Wenxi Gu, Chun Lam Clement Chan, Jiuhong Yi, Xu Liu, Peng Tan, Chon In Haydn Cheong, Qingwen Guan, Dan Fang, Bingpu Zhou, Zi Liang Wu, Ji Liu, Yan Yan Shery Huang, Iek Man Lei   +14 more
wiley   +1 more source

The Robo-AO-2 facility for rapid visible/near-infrared AO imaging and the demonstration of hybrid techniques [PDF]

, 2018
We are building a next-generation laser adaptive optics system, Robo-AO-2, for the UH 2.2-m telescope that will deliver robotic, diffraction-limited observations at visible and near-infrared wavelengths in unprecedented numbers.
Baranec, Christoph, Chun, Mark, Connelley, Michael, de Pater, Imke, Dekany, Richard, Griffiths, Richard, Guyon, Olivier, Hall, Donald, Hammel, Heidi, Hodapp, Klaus, Huber, Daniel, Kasliwal, Mansi, Kissler-Patig, Markus, Kuchner, Marc, Lau, Ryan, Law, Nicholas M., Liu, Michael, Magnier, Eugene, Meech, Karen, Moore, Anna, Ofek, Eran, Riddle, Reed, Simon, Amy, Takamiya, Marianne, van Dam, Marcos A., Wong, Mike   +25 more
core   +1 more source

Fair Beam Allocations Through Reconfigurable Intelligent Surfaces

IEEE Journal on Selected Areas in Communications
A fair beam allocation framework through reconfigurable intelligent surfaces (RISs) is proposed, incorporating the Max-min criterion. This framework focuses on designing explicit beamforming functionalities through optimization. Firstly, realistic models, grounded in geometrical optics, are introduced to characterize the input/output behaviors of RISs,
Rujing Xiong, Ke Yin, Tiebin Mi, Jialong Lu, Kai Wan, Robert Caiming Qiu   +5 more
openaire   +2 more sources

Large‐Area 2D Metasurface‐Based Triboelectric E‐Skin Arrays: Contact & Proximity Tactile Mapping with Broadband Acoustic Readouts

Advanced Materials, EarlyView.
Metasurface‐engineered NC‐TENG arrays integrate tactile pressure mapping, non‐contact gesture sensing, and acoustic signal readouts in one ultrathin module, and outperforms pristine PDMS in terms of electrical output and real‐time spatial mapping for next‐gen wearables.
Injamamul Arief, Swagato Sarkar, Anik Kumar Ghosh, Osvalds Verners, Kamal Kumar Meena, Su‐Hyeong Lee, Soosang Chae, Tobias A. F. König, Beate Krause, Andreas Fery, Mehmet Sait Özer, Anindya Nag, Amit Das   +12 more
wiley   +1 more source

iRIS: A Deep Policy Learning Framework for Intelligent Distribution of RIS Elements

IEEE Open Journal of the Communications Society
In the recent past, extensive research has been conducted considering reconfigurable intelligent surface (RIS) as an important building block in wireless communication systems.
Sudhanshu Arya, Saranya Karattupalayam Chidambaram, Yogesh Kumar Choukiker, Abhijit Bhowmick   +3 more
doaj   +1 more source

Damage Tolerant Active Contro l: Concept and State of the Art [PDF]

, 2012
Damage tolerant active control is a new research area relating to fault tolerant control design applied to mechanical structures. It encompasses several techniques already used to design controllers and to detect and to diagnose faults, as well to ...
MECHBAL, Nazih, NOBREGA, Euripedes
core   +2 more sources

Labeling Multipath via Reconfigurable Intelligent Surface

, 2021
Reconfigurable intelligent surface (RIS) has shown promise in providing apparent benefits in wireless communication and positioning. Most of the existing research focuses on the ability of RIS to adjust the direction of propagation. In this paper, we present another application based on RIS, named multipath labeling, which intends to inject a label on ...
Wang, Chang-Jen, Shih, Shang-Ling, Wen, Chao-Kai, Jin, Shi   +3 more
openaire   +2 more sources

End‐to‐End Sensing Systems for Breast Cancer: From Wearables for Early Detection to Lab‐Based Diagnosis Chips

Advanced Materials Technologies, EarlyView.
This review explores advances in wearable and lab‐on‐chip technologies for breast cancer detection. Covering tactile, thermal, ultrasound, microwave, electrical impedance tomography, electrochemical, microelectromechanical, and optical systems, it highlights innovations in flexible electronics, nanomaterials, and machine learning.
Neshika Wijewardhane, Lyn I. Jones, Richard M. Martin, Helen Winter, Faezeh Arab Hassani   +4 more
wiley   +1 more source

Transducers Across Scales and Frequencies: A System‐Level Framework for Multiphysics Integration and Co‐Design

Advanced Materials Technologies, EarlyView.
Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu, Mengyao Xiao, Zhouli Sui, Yinpeng Wang, Daoye Zheng, Yuxin Liu, Luwei Wang, Huajun Liu, Chengkuo Lee   +8 more
wiley   +1 more source

A versatile and reconfigurable microassembly workstation [PDF]

, 2008
In this paper, a versatile and reconfigurable microassembly workstation designed and realized as a research tool for investigation of the problems in microassembly and micromanipulation processes and recent developments on mechanical and control ...
Cakir, Kazim, Kunt, Emrah Deniz, Naskalı, Ahmet Teoman, Naskali, Ahmet Teoman, Sabanovic, Asif, Yuksel, Ebubekir, Yüksel, Ebubekir, Çakır, Kazım, Şabanoviç, Asif   +8 more
core