Results 21 to 30 of about 24,826 (218)

Recommendations for HCHO and SO₂ Retrieval Settings from MAX-DOAS Observations under Different Meteorological Conditions

Remote Sensing, 2021
Recently, the occurrence of fog and haze over China has increased. The retrieval of trace gases from the multi-axis differential optical absorption spectroscopy (MAX-DOAS) is challenging under these conditions.
Zeeshan Javed, Aimon Tanvir, Muhammad Bilal, Wenjing Su, Congzi Xia, Abdul Rehman, Yuanyuan Zhang, Osama Sandhu, Chengzhi Xing, Xiangguang Ji, Mingjie Xie, Cheng Liu, Yuhang Wang   +12 more
doaj   +1 more source

Comparison of single-step transepithelial photorefractive keratectomy and conventional photorefractive keratectomy in low to high myopic eyes

Indian Journal of Ophthalmology, 2020
Purpose: To compare the visual outcome, safety, safety index, efficacy, efficacy index and corneal transparency between single-step transepithelial photorefractive keratectomy (t-PRK) and conventional photorefractive keratectomy (PRK) with manual ...
Aruna Kumari Gadde, Arjun Srirampur, Kavya Reddy Katta, Tarannum Mansoori, Seth Mensah Armah   +4 more
doaj   +1 more source

Micropleated Nanofibrous Filters for High‐Efficiency Submicron Aerosol Filtration: A Comparative Study with Chemical, Biological, Radiological, and Nuclear Gas Mask Filters

Advanced Engineering Materials, EarlyView.
This study presents micropleated filters manufactured by needleless electrospinning. Nanofibers are deposited onto uniaxially pre‐stretched substrates that contract upon release, forming densely packed micropleats. This architecture increases effective surface area without enlarging the filter size, achieving quality factors comparable to those of ...
Aleksandr Fadeev, Kevin Crown, Sean Kinahan, Gabriel Lucero, Hayden Stromsodt, Svetlana Romanova, Yury Salkovskiy   +6 more
wiley   +1 more source

Seasonal analysis of indoor and outdoor ratios of PM2.5 and PM10 in Bangkok and Chiang Mai: A comparative study of haze and non-haze episodes

Heliyon
Particulate matter (PM) air pollution has been identified as one cause of human health impact with the estimated global 8.8 million attributable deaths.
Wissanupong Kliengchuay, Sarima Niampradit, Narut Sahanavin, William Mueller, Susanne Steinle, Miranda Loh, Helinor Jane Johnston, Sotiris Vardoulakis, San Suwanmanee, Walaiporn Phonphan, John W. Cherrie, Kraichat Tantrakarnapa   +11 more
doaj   +1 more source

Haze Image Recognition Based on Brightness Optimization Feedback and Color Correction

Information, 2019
At present, the identification of haze levels mostly relies on traditional measurement methods, the real-time operation and convenience of these methods are poor.
Shengyu Hao, Peiyi Wang, Yanzhu Hu
doaj   +1 more source

Photoluminescent UV Light Modulation via Anisometric Carbon Nanodots for UV–Visible Shutter and UV Sensor

Advanced Functional Materials, EarlyView.
Anisometric carbon nanodots are synthesized directly from a liquid crystal precursor and embedded into polymer network liquid crystals to create soft, multifunctional photonic films. These hybrid devices exhibit polarized photoluminescence, broad UV absorption, and fast, electrically tunable light modulation.
Mangesh D. Patekari, Archana Ramadas, Minhee Yun, Seung Hee Lee, MinSu Kim   +4 more
wiley   +1 more source

Development of colloidal hazes in bottled pale lager beer during ageing.

Kvasný průmysl, 2001
The haze development patterns of protein - polyphenol beer colloids has been simultaneously studied at nephelometric 90° angle and forward 15° angle of scattered light, directly an intact commercially bottled 12 grade pale lager beer samples at various ...
P. SLADKÝ, H. CÍSAŘOVÁ, M. DIENSTBIER, P. GABRIEL   +3 more
doaj   +1 more source

Study on the Boundary Layer of the Haze at Xianyang Airport Based on Multi-Source Detection Data

Remote Sensing, 2023
To reveal the high-resolution atmospheric and statistical characteristics of haze events within the boundary layer (BL) in different months, this study conducted a combined detection experiment using a wind-profiling radar, a microwave radiometer, and an
Hu Ming, Minzhong Wang, Lianhui Gao, Yijia Qian, Mingliang Gao, Abdellah Chehri   +5 more
doaj   +1 more source

Upconversion Nanoparticles Embedded Photonic Contact Lens for Transepithelial Corneal Crosslinking Using Hyaluronate – Riboflavin Conjugate

Advanced Functional Materials, EarlyView.
A minimally invasive, transepithelial corneal cross‐linking (TE‐CXL) approach is presented using upconversion nanoparticles (UCNPs)‐loaded contact lenses (UCLs), after topical delivery of hyaluronate–riboflavin conjugates. The NIR‐to‐UV/blue light conversion by UCNPs in a UCL can activate riboflavin for TE‐CXL, resulting in the biomechanical strength ...
Gibum Lee, Inhoo Choi, Anara Molkenova, Yengwoo Son, Seungmin Yang, Mina Kwon, Tae‐Im Kim, Ki Su Kim, Sei Kwang Hahn   +8 more
wiley   +1 more source

Changing aerosol chemistry is redefining HONO sources

Nature Communications
Heterogeneous reactions of NO2 on particulate matter have been considered an important source of HONO (Nitrous acid) in the troposphere, whereas its contribution is controversial due to the lack of uptake coefficient of NO2 (γNO2) on the surfaces of ...
Yusheng Zhang, Yongchun Liu, Wei Ma, Chenjie Hua, Feixue Zheng, Chaofan Lian, Weigang Wang, Men Xia, Zhixin Zhao, Jinwen Li, Jiali Xie, Zongcheng Wang, Yuzheng Wang, Xin Chen, Ying Zhang, Zemin Feng, Chao Yan, Biwu Chu, Wei Du, Veli-Matti Kerminen, Federico Bianchi, Tuukka Petäjä, Douglas Worsnop, Markku Kulmala   +23 more
doaj   +1 more source