Results 81 to 90 of about 229,927 (317)

A Vision-Based Bolt Looseness Detection Method for a Multi-Bolt Connection

Applied Sciences
Many vision-based bolt looseness detection methods that directly observe the bolts have been developed. However, these methods have many limitations in terms of the conditions and processes of their implementation.
Lin Deng, Ye Sa, Xiufang Li, Miao Lv, Sidong Kou, Zhan Gao   +5 more
doaj   +1 more source

Redox-induced reversible luminescence switching of cerium-doped upconversion nanoparticles

, 2016
Smart upconversion nanophosphors (UCNPs) that can be reversibly switched between two or more luminescent states by certain external stimuli have attracted considerable attention due to their great potential in biological applications.
Wang, J, Huang, YA, Xiao, QB(肖清波), Lin, HZ(蔺洪振), Li, FJ, Feng, YM, Shi, LY, Xi, YL   +7 more
core   +1 more source

Exciton Binding Energy of Phosphorescent Emitter Molecules in Organic Light‐Emitting Diodes

Advanced Functional Materials, EarlyView.
Energy level alignment is key to efficient OLED design, yet determining LUMO energies remains challenging. A methodology based on field‐induced dissociation and kinetic Monte Carlo simulations is presented to extract LUMO energies of iridium‐based phosphorescent emitters from their exciton binding energy.
Hiroki Tomita, Lucas R. L. Norg, Patrick Diederen, Clint van Hoesel, Christ H. L. Weijtens, Peter A. Bobbert, Reinder Coehoorn   +6 more
wiley   +1 more source

Evidence for suppressed mid-Holocene northeastern Australian monsoon variability from coral luminescence

, 2014
Summer monsoon rainfall in northeastern (NE) Australia exhibits substantial interannual variability resulting in highly variable river flows. The occurrence and magnitude of these seasonal river flows are reliably recorded in modern inshore corals as ...
Llewellyn, L.E., Turney, Chris S.M., Palmer, Jonathan G., Cook, CG, Turney, CSM ; https://orcid.org/, Llewellyn, LE, Hogg, A.G., Hogg, AG, Lewis, SE, Lough, J.M., Lewis, S.E., Turney, C.S.M., Cook, C.G., Hogg, Alan G., Lough, JM, Palmer, JG ; https://orcid.org/, Palmer, J.G.   +16 more
core   +1 more source

Ultrasensitive Anti‐Stokes Luminescence Thermometry in Transition Metal Dichalcogenide Monolayers

Advanced Functional Materials, EarlyView.
We demonstrate a highly sensitive nanothermometer using anti‐Stokes photoluminescence, also known as photoluminescence upconversion (UPL), in monolayer tungsten disulfide. A strong resonantly enhanced UPL is observed, confirming the central role of optical phonons in the PL upconversion mechanism.
Sharada Nagarkar, Fahrettin Sarcan, Elanur Hut, Emiliano R. Martins, Stuart A. Cavill, Thomas F. Krauss, Yue Wang   +6 more
wiley   +1 more source

Investigation of Statistical and Imaging Methods for Luminescence Detection of Irradiated Ingredients

, 2001
This project investigated two potential approaches to improving the reliability of lumines-cence methods for detecting minor irradiated ingredients in foods.
Carmichael, L., Scott, E.M., Whitely, V., Food Standards Agency, Murphy, S., Sanderson, D.C.W., University of Glasgow: Scottish Universities Research and Reactor Centre, Cresswell, A.   +7 more
core  

Controlling the visible luminescence in hydrothermal ZnO

, 2014
Cathodoluminescence spectra have been measured in hydrothermal and hydrogen-doped ZnO at different excitation densities and temperatures to investigate the emission efficiencies of near-band-edge (NBE), green and yellow luminescence bands.
Lem, LLC, Ton-That, C, Phillips, MR
core   +1 more source

Luminescence of ZnWO4 crystals under X-ray excitation

, 2022
Zinc tungstate crystal scintillator is an interesting detector material for double beta decay, dark matter, and rare alpha decay experiments. The luminescence under X-ray excitation in the temperature region from 85 K to 420 K was studied with five ...
G. P. Podust, Cappella F, Danevich F A, Incicchitti A, Afanasieva L A, Cerulli R, Kasperovych D V, Bernabei R, Caracciolo V, Degoda V Ya, Belli P, Leoncini A, Kogut Ya P   +12 more
core   +1 more source

Quantifying Subsurface Weak in‐Plane Magnetization of Mixed Phase BiFeO3 by Scanning Nitrogen Vacancy Magnetometry

Advanced Functional Materials, EarlyView.
We use scanning nitrogen vacancy magnetometry to directly image the weak in‐plane magnetic moments in mixed phase BiFeO3 at the nanoscale and quantify the local magnetic moments to be 18.8±2.0 μB/nm2 in the rhombohedral‐like phase and 1.5±0.6 μB/nm2 in the well‐known non‐magnetic tetragonal‐like phase.
Lei Wang, Zhewen Xu, Yuwen Xu, Björn Josteinsson, Simon Josephy, Dawei Zhang, Yunlong Sun, Heung‐Sik Park, Jihun Kim, Kanghyun Chu, Kyung Song, Danyang Wang, Chan‐Ho Yang, Andrea Morales, Jan Seidel   +14 more
wiley   +1 more source

Wafer‐Scale Growth and Transfer of High‐Quality MoS2 Array by Interface Design for High‐Stability Flexible Photosensitive Device

Advanced Science
Transition metal disulfide compounds (TMDCs) emerges as the promising candidate for new‐generation flexible (opto‐)electronic device fabrication. However, the harsh growth condition of TMDCs results in the necessity of using hard dielectric substrates ...
Bingchen Lü, Yang Chen, Xiaobao Ma, Zhiming Shi, Shanli Zhang, Yuping Jia, Yahui Li, Yuang Cheng, Ke Jiang, Wenwen Li, Wei Zhang, Yuanyuan Yue, Shaojuan Li, Xiaojuan Sun, Dabing Li   +14 more
doaj   +1 more source