Results 71 to 80 of about 61,413 (308)

Large Faraday Rotation in Liquid Crystals With Embedded Paramagnetic Ions (Cu2+, VO2+) at Room Temperature

Advanced Optical Materials, EarlyView.
Large Faraday rotation at room temperature is observed in thin films of discotic copper (Cu2+: 3d9) and vanadyl (VO2+: 3d1) enaminoketone complexes. The large Verdet constant originates from a high density of paramagnetic centers, metal‐ligand p−d hybridization and π orbitals involved in optical transitions (identified by DFT calculations), as well as ...
Karolina Łempicka‐Mirek, Adam Krówczyński, Mateusz Król, Nevill Gonzalez Szwacki, Paulina Rybak, Damian Pociecha, Paweł W. Majewski, Barbara Piętka, Jacek Szczytko   +8 more
wiley   +1 more source

Empirical Studies on Merging Characteristics in Temporary Highway Work Zones with Different Traffic States and Layouts

Algorithms
Vehicles conduct mandatory lane changes to merge into the open lanes in temporary highway work zones, and the merging characteristics have been widely studied over the past decades.
Yanli Jiao, Xiaoyue Zhu, Xinkai Ji, Long Zhang, Zhibin Li   +4 more
doaj   +1 more source

Multi‐Dielectric Metasurfaces for Ultrabright, Tunable Structural Color and Reconfigurable Optical Filtering with Extraordinarily Large Color Span

Advanced Optical Materials, EarlyView.
Structural color generation is an emerging field for digital display and printing applications. This report presents a novel truncated‐cone design and the first use of GaP sandwiched between two layers of TiO2, demonstrating ultra‐bright, tunable colors with a record color gamut.
Md Rumon Miah, Yavuz Selim Aydın, Hilmi Volkan Demir   +2 more
wiley   +1 more source

NEWSKY - Networking the Sky for Aeronautical Communications

, 2007
An overview of the NEWSKY project (“NEtWorking the SKY”) is given. This project is co-funded by the European Commission within the 6th Framework Programme and has started in February 2007.
F. Schreckenbach, Schreckenbach, F., Phil Platt, S. Scalise, Schnell, Michael, Scalise, Sandro, Piatt, P., M. Schnell, Schreckenbach, Frank, Platt, Phil   +9 more
core   +1 more source

Exciton Radiative Lifetimes in Hexagonal Diamond Ge and SixGe1–x Alloys

Advanced Optical Materials, EarlyView.
Strong room‐temperature photoluminescence reported in hexagonal Ge conflicts with theory predicting a nearly dark band edge. First‐principles calculations of excitonic radiative lifetimes fill a key gap in this debate, showing that pristine hexagonal Ge remains intrinsically weakly emissive, while Si alloying only modestly shortens the lifetime and ...
Michele Re Fiorentin, Michele Amato, Maurizia Palummo   +2 more
wiley   +1 more source

Professional Capacity Building for Communications - Phase 2 [PDF]

65A0403Rural intelligent transportation system (ITS) deployments are becoming increasingly complex in order to address the challenges of rural transportation.
Montana State University. Western Transportation Institute, Koon, Leann A F, Galarus, Douglas, Montana State University (Bozeman, Mont.). College of Engineering   +3 more
core  

Comprehensive analysis of renewable hybrid energy systems in highway tunnels

Frontiers in Energy Research
In order to explore the feasibility of a renewable hybrid energy system in highway tunnels, a scenario-coupled construction method for a highway tunnel renewable hybrid energy system is proposed.
Zhen Liao, Yufei Zhang, Xin Zhao, Yubiao Zhang, Manhu Liu, Jinlong Hong, Hao Cao   +6 more
doaj   +1 more source

Probing Near‐Field EM Fluctuations in Superparamagnetic CoFeB With NV Quantum Dephasometry

Advanced Optical Materials, EarlyView.
We non‐invasively investigate the superparamagnetic spin dynamics of a 1.1 nm CoFeB layer by probing its near‐field EM fluctuations using NV centers‐based quantum dephasometry. Our findings are further supported by theoretical modeling and SQUID‐based magnetization characterization. These results provide critical insight into the magnetization dynamics
Shoaib Mahmud, Wei Zhang, Pronoy Das, Angshuman Deka, Wenbo Sun, Zubin Jacob   +5 more
wiley   +1 more source

Traffic signal safety (phase B). [PDF]

DTRT06G-0043Efficiently scheduling traffic, particularly heavy vehicles, remains a key challenge in transportation engineering. This project has focused on the development of a novel traffic\u2013signal-control methodology to improve the safety of heavy ...
Urbanik, Thomas, National Transportation Research Center, Incorporated, University Transportation Center, Arel, Itamar   +2 more
core  

Luminescence and Photochromism in Lanthanide‐Doped Hackmanites

Advanced Optical Materials, EarlyView.
Lanthanide‐doped lithium hackmanite derivatives are prepared utilizing a doped LiAlSiO4 precursor to modify luminescent and photochromic properties. Upon UV excitation, europium doping results in green Eu2+ persistent luminescence from shallow traps. Contrarily, samarium doping induces unusual near‐infrared photochromism.
Joshua Baggott, Minnea Tuomisto, J. A. Gareth Williams, Sari Granroth, Ermei Mäkilä, Ari Väisänen, Jani O. Moilanen, Mika Lastusaari   +7 more
wiley   +1 more source