Results 61 to 70 of about 4,561,256 (335)

Motion Model of Floating Weather Sensing Node for Typhoon Detection

Complex System Modeling and Simulation, 2022
To improve the accuracy of typhoon prediction, it is necessary to detect the internal structure of a typhoon. The motion model of a floating weather sensing node becomes the key to affect the channel frequency expansion performance and communication ...
Hui Lu, Xinyu Dong, Xianbin Cao
doaj   +1 more source

Doppler Shift Compensation Schemes in VANETs [PDF]

Mobile Information Systems, 2015
Over the last decade vehicle-to-vehicle (V2V) communication has received a lot of attention as it is a crucial issue in intravehicle communication as well as in Intelligent Transportation System (ITS). In ITS the focus is placed on integration of communication between mobile and fixed infrastructure to execute road safety as well as nonsafety ...
Ferdinand Nyongesa, Karim Djouani, Thomas O. Olwal, Yskandar Hamam   +3 more
openaire   +1 more source

Doppler-Raman crossover in resonant scattering

, 2020
We consider theoretically light scattering by a resonant layer that periodically moves in real space. At small frequencies of motion the scattered light spectrum reveals the frequency shift that is governed by the Doppler effect.
A. V. Poshakinskiy (17493162), A. N. Poddubny (2947233), N. A. Gippius (14413761)   +2 more
core   +1 more source

A Novel Approach to Estimate the Transition Temperature via Dynamic Nanoindentation

Advanced Engineering Materials, EarlyView.
A new dynamic nanoindentation‐based method was developed that uses the stiffness ratio as an indicator of the elastic–plastic deformation contributions at different temperatures. The approach successfully identified transition temperatures in ferritic steel and distinguished them from continuously ductile austenitic steel.
Stefan Zeiler, Nikolaus Kostwein, Ronald Schnitzer, Christian Mitterer, Verena Maier‐Kiener   +4 more
wiley   +1 more source

Doppler Shift Oscillations from a Hot Line Observed by IRIS [PDF]

, 2017
We present a detailed investigation of the Doppler shift oscillations in a hot loop during an M7.1 flare on 2014 October 27 observed by the Interface Region Imaging Spectrograph.
Dong Li, Z. Ning, Yu Huang, N.-H. Chen, Qing-Min Zhang, Ying-Na Su, Wei Su   +6 more
semanticscholar   +1 more source

Comparison of methods for turbulence Doppler frequency shift calculation in Doppler reflectometer

, 2023
International audienceAbstract The Doppler reflectometer (DR), a powerful diagnostic for the plasma perpendicular velocity ( u ⊥ ) and turbulence measurement, has been widely used in various fusion devices.
Feng, Xi, Fan, Hongrui, Liu, Zixi, Gao, Liutian, Shi, Wenxiang, Liu, Shen, Liu, Adi, Wang, Shifan, Zhang, Jin, Lan, Tao, Li, Hong, Xie, Jinlin, Zou, Xiaolan, Zhou, Chu, Ji, Jiaxu, Liu, Wandong, Mao, Wenzhe, Zhong, Xiaoming, Zhuang, Ge, Xiaolan Zou, Jin Zhang, Liutian Gao, Wandong Liu, Chu Zhou, Hongrui Fan, Wenzhe Mao, Jiaxu Ji, Xiaoming Zhong, Shi Fan Wang, Wen Xiang Shi, Tao Lan, Ge Zhuang, Zixi Liu, Adi Liu, Jinlin Xie, Xi Feng, Hong Li, Shen Liu   +37 more
core   +1 more source

Spatially Controlled Embedded Bioprinting of Prevascularized Spheroids‐Containing Biopatch Enables Functional Skin Regeneration

Advanced Healthcare Materials, EarlyView.
A spatially controlled embedded bioprinting strategy enables precise engineering of prevascularized multicellular spheroids within skin‐derived dECM bioinks. Optimized spheroid size, composition, and spacing promote vascular maturation, paracrine signaling, and tissue integration, resulting in enhanced angiogenesis, blood perfusion, and functional skin
Minjun Ahn, Gyu Tae Park, Dongjun Lee, Sik Yoon, Sae‐Ock Oh, Jae Ho Kim, Byoung Soo Kim   +6 more
wiley   +1 more source

Plasmon‐Enhanced Second‐Harmonic Generation in Atomically Thin Crystalline Silver Nanostructures

Advanced Materials, EarlyView.
Atomically thin crystalline silver films combine vertical quantum confinement with lateral plasmonic field enhancement to boost second‐harmonic generation. Nanoribbon and nanotriangle arrays enable geometry‐tunable infrared plasmon resonances, producing strong SHG from deeply subwavelength metallic volumes compatible with silicon‐based nanophotonics ...
Saad Abdullah, Philipp K. Jenke, Andrew P. Weber, Álvaro Rodríguez Echarri, Vahagn Mkhitaryan, Fadil Iyikanat, Frederik Schiller, Philip Walther, J. Enrique Ortega, Lee A. Rozema, F. Javier García de Abajo   +10 more
wiley   +1 more source

On the recoil and Doppler shifts [PDF]

Journal of Modern Optics, 2010
The recoil shift due to the finite mass of an absorbing atom is, when viewed in the right way, simply part of the total Doppler shift. This is true both in the low speed and relativistic limits and also for the reflection of light from a low-mass mirror.
openaire   +3 more sources

Measurement of the Relativistic Doppler Shift in Neon [PDF]

Physical Review Letters, 1985
The relativistic Doppler shift is measured by the counting of the frequency difference between two cw dye lasers. One laser is locked to a two-photon transition in a fast beam of neon, and the other is locked to the same two-photon transition in thermal neon. The experimental result is compared to the prediction of special relativity.
, Kaivola, , Poulsen, , Riis, , Lee
openaire   +2 more sources