Results 31 to 40 of about 201,265 (294)

Bidirectional electron conic observations for photoelectrons in the Martian ionosphere

Earth and Planetary Physics, 2020
Electron pitch angle distributions similar to bidirectional electron conics (BECs) have been reported at Mars in previous studies based on analyses of Mars Global Surveyor measurements.
YuTian Cao, Jun Cui, BinBin Ni, XiaoShu Wu, Qiong Luo, ZhaoGuo He   +5 more
doaj   +1 more source

Analysis of autoionization resonances in the Hg 6s2-photoionization by measurements of photoelectron polarization [PDF]

, 1982
Schäfers F, Schönhense G, Heinzmann U. Analysis of autoionization resonances in the Hg 6s2-photoionization by measurements of photoelectron polarization. Zeitschrift für Physik A: Hadrons and Nuclei.
Schäfers, F., Heinzmann, Ulrich, Schönhense, G.   +2 more
core   +1 more source

Temporal and spectral variations of the photoelectron flux and solar irradiance during an X class solar flare

Geophysical Research Letters, 2008
Photoelectrons are the main energy source of airglow used to diagnose the state of the ionosphere‐thermosphere system. Because of measurement uncertainties and substantial gaps in the historical record, parameterized models of the EUV irradiance and ...
W. K. Peterson, P. C. Chamberlin, T. N. Woods, P. G. Richards   +3 more
doaj   +1 more source

On the Importance of the Polarity for GaN/InGaN Last Quantum Barriers in III-Nitride-Based Light-Emitting Diodes

IEEE Photonics Journal, 2016
In this paper, we investigate the electron injection efficiency in terms of different polarities and different polarization charge densities at the ${\rm{GaN/ InGaN}}$ interface. We find that the growth orientation for the ${\rm{GaN/ InGaN}}$-type last
Zi-Hui Zhang, Yonghui Zhang, Hongjian Li, Shu Xu, Chong Geng, Wengang Bi   +5 more
doaj   +1 more source

Manipulation of Si Doping Concentration for Modification of the Electric Field and Carrier Injection for AlGaN-Based Deep-Ultraviolet Light-Emitting Diodes

Crystals, 2018
Electron overflow is one of the key factors that limit the quantum efficiency for AlGaN-based deep-ultraviolet light-emitting diodes. In this work, we report a numerical study to improve the electron injection efficiency by manipulating the electric ...
Mengqian Fang, Kangkai Tian, Chunshuang Chu, Yonghui Zhang, Zi-Hui Zhang, Wengang Bi   +5 more
doaj   +1 more source

Application of SNAP-Tag in Expansion Super-Resolution Microscopy Using DNA Oligostrands

Frontiers in Chemistry, 2021
Expansion super-resolution technology is a new technology developed in recent years. It anchors the dye on the hydrogel and the dye expands with the expansion of the hydrogel so that a super-resolution map can be obtained under an ordinary microscope ...
Longfang Yao, Li Zhang, Yiyan Fei, Liwen Chen, Lan Mi, Jiong Ma, Jiong Ma, Jiong Ma   +7 more
doaj   +1 more source

Study of the Photodynamic Activity of N-Doped TiO2 Nanoparticles Conjugated with Aluminum Phthalocyanine

Nanomaterials, 2017
TiO2 nanoparticles modified with phthalocyanines (Pc) have been proven to be a potential photosensitizer in the application of photodynamic therapy (PDT). However, the generation of reactive oxygen species (ROS) by TiO2 nanoparticles modified with Pc has
Xiaobo Pan, Xinyue Liang, Longfang Yao, Xinyi Wang, Yueyue Jing, Jiong Ma, Yiyan Fei, Li Chen, Lan Mi   +8 more
doaj   +1 more source

Applications of Super Resolution Expansion Microscopy in Yeast

Frontiers in Physics, 2021
Super-resolution microscopy includes multiple techniques in optical microscopy that enable sub-diffraction resolution fluorescence imaging of cellular structures.
Liwen Chen, Longfang Yao, Li Zhang, Yiyan Fei, Lan Mi, Jiong Ma, Jiong Ma, Jiong Ma   +7 more
doaj   +1 more source

On the Impact of Electron Leakage on the Efficiency Droop for AlGaN Based Deep Ultraviolet Light Emitting Diodes

IEEE Photonics Journal, 2020
In this work, we have investigated the origin of efficiency droop for AlGaN-based deep ultraviolet light-emitting diodes (DUV LEDs). We find that the efficiency droop is likely to be caused by the electron leakage for DUV LEDs studied in this work.
Chunshuang Chu, Kangkai Tian, Jiamang Che, Hua Shao, Jianquan Kou, Yonghui Zhang, Zi-Hui Zhang, Hao-Chung Kuo   +7 more
doaj   +1 more source

The PRIMA Thesaurus for Materials Science and Engineering

Advanced Engineering Materials, EarlyView.
The PRIMA Thesaurus is a structured vocabulary designed to improve how materials science data is described and shared. Developed with input from multiple experts, it enables clear documentation of research workflows, data exchange, and reuse across platforms.
Rossella Aversa, Alexey Boubnov, Dario De Angelis, Catriona Eschke, Maximilian Kabbe, Felix Kraus, Mirco Panighel, Richard Thelen, Davide Valentinis   +8 more
wiley   +1 more source