Results 101 to 110 of about 804,865 (321)

Recent Advances in Highly Luminescent Carbon Dots

Advanced Functional Materials, EarlyView.
Here, a comprehensive summary of the advancements is provided in highly luminescent carbon dots across various luminescence bands since their discovery in 2004. It systematically covers the synthesis, structural characteristics, preparation strategies, and essential purification of these carbon dots, along with their applications in efficient ...
Yupeng Liu, Zhujun Huang, Xuanye Wang, Yiming Hao, Junxiang Yang, Hui Wang, Songnan Qu   +6 more
wiley   +1 more source

Artificial color perception using microwaves [PDF]

arXiv, 2013
We report the feasibility of artificial color perception under microwave illumination using a standard microwave source and an antenna. We have sensed transmitted microwave power through color objects and have distinguished the colors by analyzing the sensed transmitted power. Experiments are carried out using a Gunn diode as the microwave source, some
arxiv  

Electric Pulse Regulated MXene Based Nanozymes for Integrative Bioelectricity Immuno‐Cancer Therapy

Advanced Functional Materials, EarlyView.
MXenzyme‐mediated bioelectricity cancer therapy (MXenzyme‐BECT) enhances cancer cell death through irreversible depolarization, ion channel disruption, ROS generation, and immunogenic cell death. Computational simulations reveal the electrical mechanisms by which MXenzyme acts on single cells and support to predict treatment parameters. Next‐generation
Sanghee Lee, Seongchan Kim, Eui‐Sang Yu, Sian Lee, Min Jun Ko, Hyojin Lee, Dong‐Hyun Kim   +6 more
wiley   +1 more source

Sentinel-1-Aided Mutual Calibration of TanDEM-X DEMs for the Estimation of Height and Volume Changes

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Digital elevation models (DEM) derived from TanDEM-X single-pass interferometric SAR data are widely used for a large vary of applications. One of the main application fields regards the monitoring of topographic changes, which can be properly estimated ...
Carolina Gonzalez, Luca Dell'Amore, Jose-Luis Bueso-Bello, Pietro Milillo, Gabriele Schwaizer, Thomas Nagler, Paola Rizzoli   +6 more
doaj   +1 more source

Making Photoresponsive Metal–Organic Frameworks an Effective Class of Heterogeneous Photocatalyst

Advanced Functional Materials, EarlyView.
This review summarizes photoresponsive MOFs for photocatalytic applications, focusing on their capacity to enhance light harvesting, charge transfer, and surface reactions. While existing studies provide foundational insights, emerging characterization techniques enable a deeper understanding of photoresponsive MOFs.
Rui Liu, Hao Wu, Hoi Ying Chung, Yun Hau Ng   +3 more
wiley   +1 more source

Analysis of Low-Oversampled Staggered SAR Data

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2020
The combination of SCan-On-REceive with continuous variation of the pulse repetition interval during transmission (staggered operation) is a viable option for the acquisition of high-resolution synthetic aperture radar (SAR) data over wide areas.
Muriel Pinheiro, Pau Prats-Iraola, Marc Rodriguez-Cassola, Michelangelo Villano   +3 more
doaj   +1 more source

Inter‐Layer Diffusion of Excitations in 2D Perovskites Revealed by Photoluminescence Reabsorption

Advanced Functional Materials, EarlyView.
Inter‐layer diffusion of photoexcitations is monitored in thin films of the 2D perovskite (PEA)2PbI4 by tracking time‐dependent changes in photoluminescence spectra induced by photon reabsorption effects. A low out‐of‐plane excitation diffusion coefficient of 0.26 × 10−4 cm2 s−1 is determined through 1D diffusion modeling.
Jiaxing Du, Marcello Righetto, Manuel Kober‐Czerny, Siyu Yan, Karim A. Elmestekawy, Henry J. Snaith, Michael B. Johnston, Laura M. Herz   +7 more
wiley   +1 more source

The Role of Carbon Black on Devulcanization of Natural Rubber by Microwaves

, 2015
One of the greatest problems of the modern society is the recycling of vulcanized elastomers, like tires and industrial rejects. This work studies one of the techniques of devulcanization of natural rubber (NR), the devulcanization by microwaves, as well
F. D. Sousa, C. H. Scuracchio
semanticscholar   +1 more source

Elucidating Sodium Ion Storage Mechanisms in Hard Carbon Anodes at the Electronic Level

Advanced Functional Materials, EarlyView.
High‐resolution, multi‐frequency continuous wave, and pulsed Electron Paramagnetic Resonance (EPR) spectroscopy uncover the intricate Na ion storage mechanisms in hard carbon. This study reveals the coexistence of Na ion intercalation and solvent co‐intercalation, alongside a subsequent transition of Na ions from ionic to quasi‐metallic to metallic ...
Qingbing Xia, Cheng‐Lin Ko, Emily R. Cooper, Qinfen Gu, Ruth Knibbe, Jeffrey R. Harmer   +5 more
wiley   +1 more source

Coherent resonant Ka-band photonic microwave receiver [PDF]

arXiv, 2008
We propose theoretically and demonstrate experimentally a coherent microwave photonic receiver operating at 35 GHz carrier frequency. The device is based on a lithium niobate or lithium tantalate optical whispering gallery mode resonator coupled to a microwave strip line resonator.
arxiv