Results 21 to 30 of about 1,368,548 (310)

Jones-matrix imaging based on two-photon interference

open access: yesNanophotonics, 2022
Two-photon interference is an important effect that is tightly related to the quantum nature of light. Recently, it has been shown that the photon bunching from the Hong–Ou–Mandel (HOM) effect can be used for quantum imaging in which sample properties ...
Yung Tsz Kit   +4 more
doaj   +1 more source

Efficient metal halide perovskite light-emitting diodes with significantly improved light extraction on nanophotonic substrates

open access: yesNature Communications, 2019
The rapid development of halide perovskite light-emitting diodes mainly relies on the optimization of the active layer and charge injection layers. Here Zhang et al.
Qianpeng Zhang   +11 more
doaj   +1 more source

Topological classification for intersection singularities of exceptional surfaces in pseudo-Hermitian systems

open access: yesCommunications Physics, 2023
Non-Hermitian systems are known for their intriguing topological properties, which underpin various exotic physical phenomena. Exceptional points, in particular, play a pivotal role in fine-tuning these systems for optimal device functionality and ...
Hongwei Jia   +6 more
doaj   +1 more source

Effect of plant cover type on soil water budget and tree photosynthesis in jujube orchards [PDF]

open access: yes, 2017
The traditional soil management practice used in rainfed orchards in the Chinese Loess Plateau is clear cultivation (bare soil). This system leads to severe water erosion and considerable loss of water as runoff during heavy rainfall, especially on steep
Pan, Daili   +7 more
core   +1 more source

Donor polymer design enables efficient non-fullerene organic solar cells

open access: yesNature Communications, 2016
In organic photovoltaics, electron acceptors are developed to replace fullerenes, and new donors need to be designed to match these acceptors. Here, the authors show that a polymer with strong temperature dependent aggregation and intentionally reduced ...
Zhengke Li   +7 more
doaj   +1 more source

Unified Criterion for Clear‐Water Local Scour Induced by Junction Flows and Wall Jets [PDF]

open access: yes, 2021
Local scour in a sediment bed varies depending on the type, size and shape of hydraulic structures, and the properties of approach flow and sediment particles. Published studies are hitherto confined primarily to empirical experiments based on particular
Yesheng Lu   +7 more
core   +1 more source

“Designing synthetic topological matter with atoms and lights”

open access: yesLight: Science & Applications, 2022
With atom-light couplings in atomic systems, scientists have demonstrated several iconic lattice models that exhibit non-trivial band topology in controlled manners, which expands our capability to investigate exotic topological matter.
Entong Zhao, Chengdong He, Gyu-Boong Jo
doaj   +1 more source

Chicago/clear-water: v1.0.0 [PDF]

open access: yes, 2017
<p>A hybrid nowcast model that uses select data available from qPCR measurements to forecast fecal bacteria at other beaches.
Matt E Sweeney   +25 more
core   +1 more source

Membrane-type resonator as an effective miniaturized tuned vibration mass damper

open access: yesAIP Advances, 2016
Damping of low frequency vibration by lightweight and compact devices has been a serious challenge in various areas of engineering science. Here we report the experimental realization of a type of miniature low frequency vibration dampers based on ...
Liang Sun   +5 more
doaj   +1 more source

Incorporating Domain Knowledge and Structure-Based Descriptors for Machine Learning: A Case Study of Pd-Catalyzed Sonogashira Reactions

open access: yesMolecules, 2023
Machine learning has revolutionized information processing for large datasets across various fields. However, its limited interpretability poses a significant challenge when applied to chemistry.
Kalok Chan   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy