Results 71 to 80 of about 53,362 (265)

A Layered Two‐Dimensional Hydrogen‐Bonded Organic Framework Based on 2,5,8,11‐Tetrakis(4‐Carboxyphenyl)Perylene Diimide: Structural Nature, Optical and Photophysical Properties

Advanced Optical Materials, EarlyView.
A novel hydrogen‐bonded organic framework (HOF) based on perylene diimide (PDI) is synthesized, structurally and spectroscopically characterized. Its photophysical behavior highlights how supramolecular organizations govern the optical properties, including emission from monomers, aggregates, and excimer‐like species. Structural transformations induced
Mario de la Hoz Tomás, Taito Hashimoto, Boiko Cohen, Yuzuki Murata, Kazuki Shiga, Ryota Hanyu, Ryusei Oketani, Norimitsu Tohnai, Ichiro Hisaki, Abderrazzak Douhal   +9 more
wiley   +1 more source

Road Segment Traffic Flow Estimation From Sparse Vehicle Trajectory Data Using an Enhanced Macroscopic Fundamental Diagram

IEEE Access
To address the “data silo” challenge in traffic flow data acquisition, this paper proposes a method for estimating urban road segment traffic flow from sparse vehicle trajectory data, predicated on the Macroscopic Fundamental Diagram (MFD).
Yanli Jiao, Jingya Gao, Mingmin Han, Daan Zhu, Yufei Ji   +4 more
doaj   +1 more source

Nanomaterial‐Incorporated Nonlinear Optical Waveguides Explored With All‐Fiber Multiphoton Polymerization

Advanced Optical Materials, EarlyView.
Nonlinear waveguides are fabricated via an all‐fiber‐based multiphoton polymerization approach incorporating upconversion nanoparticles (UCNPs), which enable both multiphoton absorption at telecommunication wavelengths and nonlinear saturable absorption operation.
Bowon Ryu, Seungyong Shin, Myungjin Kang, Young Joon Moon, Jihoon Kyhm, Hyowon Moon, Ho Seong Jang, Yong‐Won Song   +7 more
wiley   +1 more source

Communications in Transportation Research: Vision and scope

Communications in Transportation Research, 2021
Xiaobo Qu, Shuaian Wang
doaj   +1 more source

Localized Ion Irradiation Enables Topography‐Free High‐Tc Superconducting Metamaterials

Advanced Optical Materials, EarlyView.
A topography‐free oxygen ion‐irradiation strategy is demonstrated for patterning superconducting YBCO terahertz metamaterials without physical material removal. The approach preserves film integrity while enabling large spectral tunability, ultrafast optical modulation, and dual‐band resonance control, providing a scalable platform for low‐loss ...
Teng Chen Ietro Pang, Yogesh Kumar Srivastava, Sobhan Subhra Mishra, Sambhu Jana, Jérôme Lesueur, Ranjan Singh   +5 more
wiley   +1 more source

Modelling of technological reliability in traffic logistic networks in urban areas

MATEC Web of Conferences, 2016
The trend of growing parcel numbers with the customer’s desire for shorter delivery times as a result of increasing online trade and economic specialization requires an adjustment of transport systems.
Keil Reiner, Hedrich Frank, Kremenova Iveta, Madlenak Radovan   +3 more
doaj   +1 more source

Near‐Field Nanoimaging of Programmable Phase Transitions in Ga+‐Irradiated VO2

Advanced Optical Materials, EarlyView.
Focused Ga+ ion irradiation locally reprograms the insulator‐to‐metal transition in VO2 thin films. Infrared and terahertz near‐field nanoimaging reveals that low irradiation doses localize the resistive‐switching filament within the defect region, while high doses suppress switching there and redirect the filament into pristine VO2.
Sarabpreet Singh, Nareg Ghazikhanian, Muhammad Asjad, Erbin Qiu, Ivan K. Schuller, Yohannes Abate   +5 more
wiley   +1 more source

Research on Train Loading and Unloading Mode and Scheduling Optimization in Automated Container Terminals

Journal of Marine Science and Engineering
In some automated container terminals, railway lines have been implemented into the port, saving container transfer time. However, the equipment scheduling level of the railway yard needs to be improved for managers.
Hongbin Chen, Wei Liu, Mehdi Oldache, Amjad Pervez   +3 more
doaj   +1 more source

Helium Ion‐Induced Degradation Mechanisms in Optical Coatings for Space Applications

Advanced Optical Materials, EarlyView.
Although low‐energy helium ions represent a significant source of degradation for optical coatings operating in space environments, their effects remain poorly understood. Systematic irradiation of over 150 metal and dielectric thin‐film samples at 4, 16, and 100 keV investigates the damage mechanisms and their impact on optical performance ...
Alain J. Corso, Marta Padovani, René Hübner, Ulrich Kentsch, Andrea Meneguzzo, Maria G. Pelizzo   +5 more
wiley   +1 more source

Strength-Constrained Screening of Lower-CO₂ Geopolymer Concrete Mix Designs: Response Matching and Stability Assessment

Buildings
Public geopolymer concrete (GPC) databases can support retrospective screening of records with lower reported CO2 emissions under strength constraints, but reliable ranking also requires correct response matching and stable threshold-based eligibility ...
Yulong He, Zunqing Liu, Liukui Zhu, Ping Zheng, Yinggang Liu, Wei Chen, Bin Wang   +6 more
doaj   +1 more source