Results 61 to 70 of about 1,367,957 (308)

A reflective sapphire@PiGF@alumina color converter enabling ultrahigh luminescence laser-driven white lighting

Journal of Advanced Ceramics
High-brightness laser lighting faces grave challenges in the development of laser-driven color converters that simultaneously possess excellent optical performance and superior heat dissipation.
Xinyuan Wang, Jingxiang Qu, Hongjin Zhang, Deyi Chen, Ben Tian, Yun Mou, Jianming Xu, Yang Peng   +7 more
doaj   +1 more source

Energy-neutral solar-powered street lighting with predictive and adaptive behaviour [PDF]

, 2014
Street lighting can enhance the safety and security of residential and commercial areas. However, its installation and operation is expensive: cables must be installed, and power is drawn from the grid which is typically dominated by non-renewable ...
Geoff V. Merrett, Weddell, Alex S., Merrett, Geoff V., Sei Ping Lau, Neil M. White, Alex S. Weddell, Lau, Sei Ping, White, NM   +7 more
core   +1 more source

Polarization‐resolved femtosecond Vis/IR spectroscopy tailored for resolving weak signals in biological samples using minimal sample volume

FEBS Open Bio, EarlyView.
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley   +1 more source

Solar PV Lighting and Studying after Sunset: Analysis of Micro-benefits in Off-grid Rural Ghana [PDF]

, 2013
Solar PV light provides school children living in off-grid rural communities the opportunity to have clean and bright lighting to study after sunset. On the contrary, lighting provided from poor sources can pollute and adversely affect human eyes during ...
George Y. , Obeng
core   +2 more sources

Composite structure Al2O3/Al2O3–YAG:Ce/YAG ceramics with high color spatial uniformity for white laser lighting

Journal of Advanced Ceramics
Composite ceramic phosphor (CCP) is a candidate light-conversion material to obtain the high-quality laser lighting source. Phosphors based on the transmissive configuration model could not simultaneously meet the requirements of angular color uniformity
Pengfei Sang, Le Zhang, Jian Kang, Mingzhou Li, Shiwei Chen, Peng Yang, Bingheng Sun, Yang Li, Wieslaw Strek, Hao Chen   +9 more
doaj   +1 more source

Laser adhesion test for thermal sprayed coatings on textured surface by laser [PDF]

, 2016
The laser shock adhesion test (LASAT) is a technique allowing the generation of high tensile stresses in materials. The LASAT consists in focusing a pulsed laser beam on a water-confined target.
BOUSTIE, Michel, S. Costil, COURAPIED, Damien, J. Cormier, BERTHE, Laurent, R. Kromer, CORMIER, Jonathan, KROMER, Robin, MILHET, Xavier, M. Boustie, X. Milhet, L. Berthe, D. Courapied, PEYRE, Patrice, COSTIL, Sophie, P. Peyre   +15 more
core   +1 more source

A light‐triggered Time‐Resolved X‐ray Solution Scattering (TR‐XSS) workflow with application to protein conformational dynamics

FEBS Open Bio, EarlyView.
Time‐resolved X‐ray solution scattering captures how proteins change shape in real time under near‐native conditions. This article presents a practical workflow for light‐triggered TR‐XSS experiments, from data collection to structural refinement. Using a calcium‐transporting membrane protein as an example, the approach can be broadly applied to study ...
Fatemeh Sabzian‐Molaei, Fredrik Orädd, Konstantinos Magkakis, Magnus Andersson   +3 more
wiley   +1 more source

Analysing the significance of small conformational changes and low occupancy states in serial crystallographic data

FEBS Open Bio, EarlyView.
This protocol paper outlines methods to establish the success of a time‐resolved serial crystallographic experiment, by means of statistical analysis of timepoint data in reciprocal space and models in real space. We show how to amplify the signal from excited states to visualise structural changes in successful experiments.
Jake Hill, Yelyzaveta Pulnova, Elke De Zitter, Helen M. Ginn, Briony A. Yorke   +4 more
wiley   +1 more source

Photothermal synergistic AlN–YAG:Ce composite phosphor ceramics for laser-driven lighting applications

Journal of Advanced Ceramics
As laser lighting advances toward kilowatt-level power, the thermal stability of phosphors has become a critical bottleneck limiting performance enhancement.
Ziqiu Cheng, Zhenzhen Zhou, Yanbin Wang, Sifan Zhuo, Shisheng Lin, Chen Hu, Denis Yu. Kosyanov, Daqin Chen, Jiang Li   +8 more
doaj   +1 more source

Interleaving-based converter system with features of external auxiliary triggering and universal line input for driving medical laser equipment

The Journal of Engineering, 2019
A novel power converter system to drive medical laser equipment is proposed here, which has the major features of interleaving, external auxiliary triggering, and lighting period control.
Chih-Lung Shen, Li-Zhong Chen, You-Sheng Shen   +2 more
doaj   +1 more source