Results 271 to 280 of about 3,237,001 (321)

How regulatory orders and public fear affect vehicle mobility under COVID-19: A global perspective from urban overall vehicles using multi-source data. [PDF]

PLoS One
Tang L, Tang C, Luo H.
europepmc   +1 more source

From formal modeling to discrete event simulation : application to the design and evaluation of safe and secured protocols for communications in transportation systems

, 2019
Emna Chebbi
openalex   +1 more source

Carbonized Polymer Dots‐Based Spectrally Adaptable Photonic Microbarcodes

Advanced Optical Materials, EarlyView.
This study explores spectrally tunable photonics barcodes using carbonized polymer dots (CPDs) based on whispering gallery mode (WGM) photoluminescence. CPDs offer wavelength‐dependent emission from visible to near‐infrared (NIR), thereby enabling variable WGM emissions.
Barun Kumar Barman, Keisuke Watanabe, Tadaaki Nagao   +2 more
wiley   +1 more source

Intelligent vehicles and Smart transportation. [PDF]

Fundam Res
Huang J, Labi S, Kulcsár BA, Gao Y, Monreal CO, Wu F, He Z, Qu X.   +7 more
europepmc   +1 more source

Excitation‐Wavelength‐Tunable Lasing in Individual Quantum Dot Superparticles

Advanced Optical Materials, EarlyView.
Mesoscale superparticles assembled from CdSe quantum dots are shown to behave as microlasers with emission properties that can be tuned by changing the excitation wavelength. Abstract Microcavities enable precise control over light‐matter interactions, supporting a wide range of applications in photonics and optoelectronics.
Marco Reale, Pietro Castronovo, Marco Cannas, Emanuele Marino, Alice Sciortino, Fabrizio Messina   +5 more
wiley   +1 more source

Anticollision communication ontology technique implementation with MANET networking. [PDF]

Sci Rep
Wielgosz M, Hatłas-Sowińska P, Gucma M.   +2 more
europepmc   +1 more source

Engineered Growth of Perovskite Nanocrystals on Graphene with Subsequent TiO2 Integration for Enhanced Photodetection and Environmental Catalysis

Advanced Optical Materials, EarlyView.
The growth of perovskite nanocrystals on graphene, coupled with an optically active and protective oxide interface, enhances photodetection and environmental catalysis by facilitating efficient charge separation, improved light absorption, and enhanced structural stability, offering a promising approach for advanced optoelectronic and catalytic ...
Thi Thuong Thuong Nguyen, Sangmin Kim, Minseong Ju, Haney Lee, Cuong Van Le, Changjun Kim, Inseo Hwang, Changhun Yun, Hyeonseok Yoon   +8 more
wiley   +1 more source

Thermal‐Energy‐Boosted Luminescence for Precise Optical Thermometry in Eu/Tb‐Doped ScNbO4

Advanced Optical Materials, EarlyView.
This paper presents a novel phosphor for high‐performance optical thermometry utilizing thermal‐energy‐assisted luminescence boosting. The samples are prepared by incorporating Eu‐doped ScNbO4 and Tb‐doped ScNbO4 powders into a PDMS matrix. Under blue light excitation, the sample exhibits a stunning emission color change from green to red as the ...
Sangwon Wi, Chaeyeon Lee, Jaeho Han, Yunsang Lee   +3 more
wiley   +1 more source

Orbital debris requires prevention and mitigation across the satellite life cycle. [PDF]

Commun Eng
Bennett MM.
europepmc   +1 more source

Highly Efficient Upconverted Fluorescence from Coulombically Assembled Ion Pair

Advanced Optical Materials, EarlyView.
A dicationic Os(II) complex paired with two monoanionic fluorophores is designed to enable highly efficient triplet–triplet annihilation upconversion, achieving a remarkable upconverted fluorescence quantum yield of 13% at 785 nm excitation with a record‐low threshold intensity of 5.9 mW cm⁻2, attributed to diffusion‐free acceleration of energy ...
Ji Hye Baek, Dayoon Song, Gyurim Park, Srinivas Avula, Soojin Park, Kei Ohkubo, Youngmin You   +6 more
wiley   +1 more source