Results 71 to 80 of about 607,170 (281)

Formation of Sub-galactic Clouds under UV Background Radiation [PDF]

, 1999
The effects of the UV background radiation on the formation of sub-galactic clouds are studied by means of one-dimensional hydrodynamical simulations. The radiative transfer of the ionizing photons due to the absorption by HI, HeI and HeII, neglecting ...
Babul A., Baljtlik S., Barns J., Berger A. J., Cole S., Cooke A. J., Couchman H. M. P., Couchman H. M. P., Efstathiou G., Efstathiou G., Eke V. R., Fukugita M., Hughes D., Ikeuchi S., Ikeuchi S., Kauffmann G., Kitayama T., Lacey C. G., Lane W., Madau P., Murakami I., Okoshi K., Quinn T., Rees M. J., Reimers D., Sasaki S., Satoru Ikeuchi, Savaglio S., Tetsu Kitayama, Umemura M., Vedel H., Viana P. T. P.   +31 more
core   +4 more sources

Dual‐Mode Film Based on Highly Scattering Nanofibers and Upcycled Chips‐Bags for Year‐Round Thermal Management

Advanced Functional Materials, EarlyView.
Intelligent radiative cooling devices, adaptable to various weather conditions, have the potential for year‐round energy savings. This study introduces a sustainable dual‐mode film made from polycaprolactone nanofibers and upcycled chip bags for effective thermal management.
Qimeng Song, Stefan Rettinger, Chengzhang Xu, Ulrich Mansfeld, Markus Retsch   +4 more
wiley   +1 more source

Environmental & health impacts of ultraviolet radiation: current trends and mitigation strategies

Discover Sustainability
Contrary to the conventional wisdom and practices moderate non-burning ultraviolet (UV) radiation may be beneficial to our existence, but ecosystems and human health are seriously threatened by the rise in UV radiation from ozone layer loss and climate ...
Gideon Sadikiel Mmbando, Kelvin Ngongolo
doaj   +1 more source

UV Radiation and Its Relation to DNA Methylation in Epidermal Cells: A Review

Epigenomes, 2020
DNA methylation is the most studied epigenetic mark, and it can be altered by environmental factors. Among these factors, ultraviolet radiation (UV) is little explored within this context.
Naila Francis Paulo de Oliveira, Beatriz Fernandes de Souza, Marina de Castro Coêlho   +2 more
doaj   +1 more source

Ultraviolet radiation changes [PDF]

A major consequence of ozone depletion is an increase in solar ultraviolet (UV) radiation received at the Earth's surface. This chapter discusses advances that were made since the previous assessment (World Meteorological Organization (WMO)) to our ...
Blumthaler, M., Filyushkin, V., Frederick, John E., Ilyas, Mohammad, Madronich, Sasha, Mckenzie, Richard L., Muthusubramanian, P., Roy, Colin E., Stamnes, K., Wahner, Andreas   +9 more
core   +1 more source

The Effects of Ultraviolet Light on Anthocyanin Accumulation in the Adventitious Roots of Sedum wrightii (Crassulaceae) [PDF]

, 2018
Several studies have supported the idea that anthocyanin accumulation may be a possible protection mechanism in plants against DNA damage caused by ultraviolet radiation (UV).
Gravatt, Dennis A., Kerr, Lila D., Wiggers, Robert J.   +2 more
core   +2 more sources

Quantum Emitters in Hexagonal Boron Nitride: Principles, Engineering and Applications

Advanced Functional Materials, EarlyView.
Quantum emitters in hexagonal boron nitride have emerged as a promising candidate for quantum information science. This review examines the fundamentals of these quantum emitters, including their level structures, defect engineering, and their possible chemical structures.
Thi Ngoc Anh Mai, Md Shakhawath Hossain, Nhat Minh Nguyen, Yongliang Chen, Chaohao Chen, Xiaoxue Xu, Quang Thang Trinh, Toan Dinh, Toan Trong Tran   +8 more
wiley   +1 more source

Evaporating Very Small Grains as tracers of the UV radiation field in Photo-dissociation Regions

, 2012
Context. In photo-dissociation regions (PDRs), Polycyclic Aromatic Hydrocarbons (PAHs) could be produced by evaporation of Very Small Grains (VSGs) by the impinging UV radiation field from a nearby star. Aims. We investigate quantitatively the transition
Berné, O., Joblin, C., Montillaud, J., Pilleri, P.   +3 more
core   +3 more sources

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

Advanced Functional Materials, EarlyView.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner, Ruben Maile, Murat Cuvalli, Andreas Wolf, Ayisha Komal, Robert Oestreich, Christoph Janiak, Karl Mandel, Alexander Knebel, Klaus Müller‐Buschbaum   +9 more
wiley   +1 more source

A 10 km daily-level ultraviolet-radiation-predicting dataset based on machine learning models in China from 2005 to 2020 [PDF]

Earth System Science Data
Ultraviolet (UV) radiation is closely related to health; however, limited measurements have hindered further investigation of its health effects in China.
Y. Jiang, S. Shi, X. Li, C. Xu, H. Kan, H. Kan, B. Hu, X. Meng, X. Meng   +8 more
doaj   +1 more source