Results 131 to 140 of about 73,038 (292)

Gradual volatile memristor–based artificial neurons with high uniformity for neuromorphic computing

InfoScience, EarlyView.
Schematic of leaky integrate‐and‐fire artificial neurons for MNIST image classification. Abstract Artificial neurons are pivotal for neuromorphic hardware, but the development of compact and uniform devices remains challenging. Conventional volatile memristors suffer from abrupt switching, which hinders spatiotemporal consistency.
Pengtao Li, Guobin Zhang, Zhihao Gong, Zijian Wang, Xuemeng Fan, Qi Luo, Zhejia Zhang, Dawei Gao, Mingkun Xu, Hua Wang, Shuai Zhong, Qing Wan, Yishu Zhang   +12 more
wiley   +1 more source

Long‐Range Exciton Energy Transfer in Two‐Dimensional Materials

Laser &Photonics Reviews, EarlyView.
This review highlights recent advances in long‐range exciton energy transfer within planar 2D‐material architectures. It emphasizes the emergence of self‐hybridized excitonpolaritons, exciton coupling to surface plasmon polaritons and plasmonic lattices, and the role of dipoledipole transfer pathways in enabling efficient nanoscale energy transport ...
Paul H. Bittorf, Maximilian Black, Hebrew Crispin, Prabhdeep Singh, Parsa Darman, Sara Darbari, Fatemeh Chahshouri, Masoud Taleb, Nahid Talebi   +8 more
wiley   +1 more source

Stiffness and Vibration Reduction Performance of Double-block Floating Slab Track Vibration Isolators

Chengshi guidao jiaotong yanjiu
[Objective] To address the shortcomings currently present in high-performance and special vibration-reducing floating slab track systems, such as poor accuracy in maintaining the rail bottom gradient and insufficient construction precision, the CRTS ...
SHEN Shanshan, YU Lei, HUANG Huichao, GU Chengpeng   +3 more
doaj   +1 more source

Remote sensing of atmospheric water vapor, liquid water and wind speed at the ocean surface by passive microwave techniques from the Nimbus-5 satellite [PDF]

The microwave brightness temperature measurements for Nimbus-5 electrically scanned microwave radiometer and Nimbus E microwave spectrometer are used to retrieve the atmospheric water vapor, liquid water and wind speed by a quasi-statistical retrieval ...
Chang, A. T. C., Wilheit, T. T.
core   +1 more source

Terahertz All‐Dielectric Maxwell Fisheye Lens Waveguide Crossings via Transformation Optics

Laser &Photonics Reviews, EarlyView.
All‐silicon terahertz waveguide crossings based on Maxwell fisheye lenses are reshaped using transformation optics to interface with planar waveguides while reducing mode mismatch. Realized via subwavelength perforations in a single etching step, 2 × 2 and 3 × 3 crossings achieve broadband transmission with low loss and ultralow crosstalk across 220 ...
Nikolaos Xenidis, Joachim Oberhammer, Dmitry Lioubtchenko   +2 more
wiley   +1 more source

Temperature field characteristics of slab ends of double-block ballastless track in large daily temperature difference region

Case Studies in Thermal Engineering
In regions with large daily temperature differences, double-block ballastless tracks have experienced severe interface damage and warping deformation at the slab ends.
Youxin Wei, Yu Liu, Bin Yang, Shiping Zhang, Yanxi Zhao   +4 more
doaj   +1 more source

Highly Durable and Uniform Structural Coloration via Spray‐Coated Organic Mie Resonators Randomly Distributed in Three Dimensions

Laser &Photonics Reviews, EarlyView.
This study demonstrates uniform, durable non‐iridescent structural coloration using polystyrene nanoparticles randomly embedded in a thick sodium silicate with absorptive additives. By suppressing the effects of the structure factor and multiple scattering, this approach achieves uniform coloration from the backscattering.
Jihun Kang, Seunghwan Moon, Dongyeon Jin, Jong‐Souk Yeo   +3 more
wiley   +1 more source

A Novel 9‐Channel 1H, 3‐Channel 31P Radiofrequency Coil for Interleaved Multinuclear Studies of Human Calf Muscle at 7 T

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To develop a double‐tuned calf coil with excellent 1H and 31P performance to study muscle physiology by interleaved 1H/31P MRS and parallel imaging at 7 T. Methods The coil combines three 1H transceive dipoles, six 1H receive‐only loops and three 31P transceive loops, arranged in a nested, half‐cylindrical layout.
Veronika Cap, Vasco Rafael Rocha dos Santos, Kostiantyn Repnin, Onisim Soanca, Elmar Laistler, Peter Wolf, Graham J. Kemp, Roberta Frass‐Kriegl, Martin Meyerspeer   +8 more
wiley   +1 more source

Measurement and Forecasting of High-Speed Rail Track Slab Deformation under Uncertain SHM Data Using Variational Heteroscedastic Gaussian Process. [PDF]

Sensors (Basel), 2019
Wang QA, Ni YQ.
europepmc   +1 more source

Motion‐ and Field‐Robust Mesoscopic Whole‐Brain T2*$$ {T}_2^{\ast } $$‐Weighted Imaging at 7 and 11.7 T Using Servo Navigation

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To mitigate artifacts related to motion and field changes in high‐resolution T2*$$ {T}_2^{\ast } $$‐weighted human brain imaging using servo navigation at ultra‐high fields up to 11.7 T. Methods MR‐based servo navigators were integrated into a segmented 3D‐EPI sequence to allow for prospective correction of involuntary head motion and ...
Matthias Serger, Rüdiger Stirnberg, Philipp Ehses, Malte Riedel, Thomas Ulrich, Caroline Le Ster, Franck Mauconduit, Vincent Gras, Alexis Amadon, Alexandre Vignaud, Son Chu, Shajan Gunamony, Maxim Zaitsev, Nicolas Boulant, Klaas P. Pruessmann, Tony Stoecker   +15 more
wiley   +1 more source