Results 81 to 90 of about 4,195,484 (202)

Charge identification for spectral lines in nitrogen [PDF]

Ion charge identification for spectral lines in nitrogen by beam foil light source ...
Bashkin, S., Carriveau, G. W., Hay, H. J.   +2 more
core   +1 more source

Occurrence characteristics of microplastics in Dongting Lake, China

River
Lakes are critical sinks for terrigenous microplastics (MPs), yet understanding their ecological risks remains hindered by data uncertainties and the absence of local background values.
Jiuqiong Niu, Wanchao Gao, Dongyu Xu, Bo Gao   +3 more
doaj   +1 more source

Identification of 5C4 Radio Sources [PDF]

Monthly Notices of the Royal Astronomical Society, 1972
BARBIERI, CESARE, F. Bertola
openaire   +2 more sources

Pollution Characteristics and Risk Assessment of Heavy Metals in the Sediments of the Inflow Rivers of Dianchi Lake, China

Toxics
To explore the contamination status and identify the source of the heavy metals in the sediments in the major inflow rivers of Dianchi Lake in China, sediment samples were collected and analyzed. Specifically, the distribution, source, water quality, and
Liwei He, Guangye Chen, Xinze Wang, Jian Shen, Hongjiao Zhang, Yuanyuan Lin, Yang Shen, Feiyan Lang, Chenglei Gong   +8 more
doaj   +1 more source

Helicopter cabin noise: Methods of source and path identification and characterization [PDF]

Internal noise sources in a helicopter are considered. These include propulsion machinery, comprising engine and transmission, and turbulent boundary layer effects.
Murray, B. S., Wilby, J. F.
core   +1 more source

Source Profile Analysis, Source Apportionment, and Potential Health Risk of Ambient Particle-Bound Polycyclic Aromatic Hydrocarbons in Areas of Specific Interest

Atmosphere
Ambient particulate matter (PM10) and its chemical composition in polycyclic aromatic hydrocarbons (PAHs) were studied in areas of specific interest, between September 2015 and July 2016.
Dikaia Saraga, Michail Pachoulis, Maria Dasopoulou, Panagiotis Panagopoulos, Dimitra Balla, Kyriaki Bairachtari, Thomas Maggos   +6 more
doaj   +1 more source

Covariance-domain Dictionary Learning for Overcomplete EEG Source Identification

, 2015
We propose an algorithm targeting the identification of more sources than channels for electroencephalography (EEG). Our overcomplete source identification algorithm, Cov-DL, leverages dictionary learning methods applied in the covariance-domain ...
Balkan, Ozgur, Kreutz-Delgado, Kenneth, Makeig, Scott   +2 more
core  

Perfluoroalkyl substances in the environment and biota from the coasts of the South China Sea: profiles, sources, and potential risks

Frontiers in Environmental Science
Perfluoroalkyl substances (PFAS) are an emerging class of contaminants that have been produced since the 1950s. The first report on PFAS to raise global concerns was published in 2001. Since then, many countries have implemented policies to control PFAS.
Jiaer Zhang, Jiaer Zhang, Yuxin Xie, Yuxin Xie, Jingru Zhang, Mai Ye, Jieyi Diao, Jieyi Diao, Jianwen Wang, Jianwen Wang, Qiongping Sun, Qiongping Sun, Tieyu Wang, Tieyu Wang   +13 more
doaj   +1 more source

Evolution of X-ray astronomy [PDF]

The evolution of X-ray astronomy up to the launching of the Einstein observatory is presented. The evaluation proceeded through the following major steps: (1) discovery of an extrasolar X-ray source, Sco X-1, orders of magnitude stronger than astronomers
Rossj, B.
core   +1 more source

Source identification via contact tracing in the presence of asymptomatic patients. [PDF]

Appl Netw Sci, 2023
Ódor G, Vuckovic J, Ndoye MS, Thiran P.
europepmc   +1 more source