Results 11 to 20 of about 446,185 (284)

The Characterization of Haze and Dust Processes Using MAX-DOAS in Beijing, China

Remote Sensing, 2021
Haze and dust pollution have a significant impact on human production, life, and health. In order to understand the pollution process, the study of these two pollution characteristics is important. In this study, a one-year observation was carried out at
Hongmei Ren, Ang Li, Pinhua Xie, Zhaokun Hu, Jin Xu, Yeyuan Huang, Xiaomei Li, Hongyan Zhong, Hairong Zhang, Xin Tian, Bo Ren, Shuai Wang, Wenxuan Chai, Chuanyao Du   +13 more
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UAVC: A New Method for Correcting Lidar Overlap Factors Based on Unmanned Aerial Vehicle Vertical Detection

Applied Sciences, 2021
A method to calibrate the overlap factor of Lidar is proposed, named unmanned aerial vehicle correction (UAVC), which uses unmanned aerial vehicles (UAVs) to detect the vertical distribution of particle concentrations. The conversion relationship between
Ming Zhao, Zhiyuan Fang, Hao Yang, Liangliang Cheng, Jianfeng Chen, Chenbo Xie   +5 more
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Unusual Enhancement of the Optical Depth on the Continental Shelf Depth Latitudinal Variation in the Stratospheric Polar Vortex

Remote Sensing, 2023
The Antarctic ozone hole has attracted attention concerning global climate change. Breakthroughs regarding ozone observation methods and the formation principles of ozone holes have occurred.
Ziqiang Xu, Yuanyuan Qian, Taiping Yang, Fuying Tang, Yuhan Luo, Fuqi Si   +5 more
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Estimation of the Precipitable Water and Water Vapor Fluxes in the Coastal and Inland Cities of China Using MAX-DOAS

Remote Sensing, 2021
Water vapor transport affects regional precipitation and climate change. The measurement of precipitable water (PW) and water vapor flux (WVF) is of great importance for the study of precipitation and water vapor transport.
Hongmei Ren, Ang Li, Pinhua Xie, Zhaokun Hu, Jin Xu, Yeyuan Huang, Xiaomei Li, Hongyan Zhong, Xin Tian, Bo Ren, Hairong Zhang   +10 more
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Rare Earth Dopant (Nd, Gd, Dy, and Er) Hybridization in Lithium Tetraborate

Frontiers in Physics, 2014
The four dopants (Nd, Gd, Dy, and Er) substitutionally occupy the Li+ sites in lithium tetraborate (Li2B4O7: RE) glasses as determined by analysis of the extended X-ray absorption fine structure. The dopants are coordinated by 6-8 oxygen at a distance of
Tony D. Kelly, James C. Petrosky, John W. McClory, Volodymyr T. Adamiv, Yaroslav V. Burak, Bohdan V. Padlyak, Bohdan V. Padlyak, Ihor M. Teslyuk, Ning eLu, Lu eWang, Wai-Ning eMei, Peter A Dowben   +11 more
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Study of the ${\mathit{C}}_{\mathit{n}}^{\mathbf{2}}$ Model through the New Dimensionless Temperature Structure Function near the Sea Surface in the South China Sea

Remote Sensing, 2023
The refractive index structure constant Cn2 near the ocean surface is an important parameter for studying atmospheric optical turbulence over the ocean.
Feifei Wang, Kun Zhang, Gang Sun, Qing Liu, Xuebin Li, Tao Luo   +5 more
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Physical meaning of the radial index of Laguerre-Gauss beams [PDF]

, 2015
The Laguerre-Gauss modes are a class of fundamental and well-studied optical fields. These stable, shape-invariant photons - exhibiting circular-cylindrical symmetry - are familiar from laser optics, micro-mechanical manipulation, quantum optics ...
Krenn, Mario, Plick, William N.
core   +3 more sources

Rapid and Sensitive Detection of Water Toxicity Based on Photosynthetic Inhibition Effect

Toxics, 2021
To achieve rapid and sensitive detection of the toxicity of pollutants in the aquatic environment, a photosynthetic inhibition method with microalgae as the test organism and photosynthetic fluorescence parameters as the test endpoint was proposed.
Min Chen, Gaofang Yin, Nanjing Zhao, Tingting Gan, Chun Feng, Mengyuan Gu, Peilong Qi, Zhichao Ding   +7 more
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Generating qudits with d=3,4 encoded on two-photon states [PDF]

, 2005
We present an experimental method to engineer arbitrary pure states of qudits with d=3,4 using linear optics and a single nonlinear crystal.Comment: 4 pages, 1 eps figure. Minor changes. The title has been changed for publication on Physical Review
C. Cinelli, Giacomo Mauro D’Ariano, Massimiliano F. Sacchi, P. K. Aravind, Paolo Mataloni, R. Bhatia, R. T. Thew   +6 more
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Highly Sensitive Sphere-Tube Coupled Photoacoustic Cell Suitable for Detection of a Variety of Trace Gases: NO₂ as an Example

Sensors, 2021
The concentration of trace gases in the atmospheric environment is extremely low, but it has a great impact on the living environment of organisms. Photoacoustic spectroscopy has attracted extensive attention in the field of trace gas detection because ...
Zhengang Li, Ganshang Si, Zhiqiang Ning, Jiaxiang Liu, Yonghua Fang, Beibei Si, Zhen Cheng, Changping Yang   +7 more
doaj   +1 more source