Results 31 to 40 of about 5,748,398 (247)

Using Optical Water Types to Monitor Changes in Optically Complex Inland and Coastal Waters

Remote Sensing, 2019
The European Space Agency’s Copernicus satellites Sentinel-2 and Sentinel-3 provide observations with high spectral, spatial, and temporal resolution which can be used to monitor inland and coastal waters. Such waters are optically complex, and the
Kristi Uudeberg, Ilmar Ansko, Getter Põru, Ave Ansper, Anu Reinart   +4 more
doaj   +1 more source

Temperature characterisation of an optically-interrogated Rogowski coil [PDF]

, 2014
An investigation into the performance of an optically-interrogated Rogowski coil over temperatures up to 80 °C is presented. Preliminary thermal tests reveal that the sensor response is temperature-dependent and the measurement errors are increased at ...
Niewczas, Pawel, Fusiek, Grzegorz, Orr, Philip   +2 more
core   +4 more sources

An adaptive hybrid algorithm for retrieving particulate organic carbon in complex coastal waters

International Journal of Applied Earth Observations and Geoinformation
The retrieval of particulate organic carbon (POC) from optical properties in coastal waters remains a significant challenge because of profound spatiotemporal heterogeneity in water composition.
Tao Zhou, Wen Zhou, Weilang Xie, Cai Li, Zhantang Xu, Xiankun Yang   +5 more
doaj   +1 more source

Functional comparison of EncB and EncC cargo proteins in iron storage within the Myxococcus xanthus encapsulin

FEBS Letters, EarlyView.
Encapsulins are protein nanocompartments that play an important role in iron storage. In the Myxococcus xanthus encapsulin system, two cargo proteins called EncB and EncC contribute to iron mineralization. Here, we show that EncB and EncC generate iron‐containing minerals with distinct chemical compositions, suggesting that the composition of stored ...
Harry B. McDowell, Thomas Walther, Egbert Hoiczyk   +2 more
wiley   +1 more source

Geo-adaptive deep learning for regional-scale bathymetric modeling in optically and morphologically challenging waters: A case study of the Yellow River Estuary

Journal of Hydrology: Regional Studies
Study region: The Yellow River Estuary, China, is a shallow and highly turbid coastal zone with complex optical conditions that challenge traditional bathymetric inversion methods.
Hai Sun, Yanan Chu, Chao Fan, Huiqian Wang, Bingchen Liang   +4 more
doaj   +1 more source

Retrieving Total and Inorganic Suspended Sediments in Amazon Floodplain Lakes: A Multisensor Approach

Remote Sensing, 2019
Remote sensing imagery are fundamental to increasing the knowledge about sediment dynamics in the middle-lower Amazon floodplains. Moreover, they can help to understand both how climate change and how land use and land cover changes impact the sediment ...
Daniel Maciel, Evlyn Novo, Lino Sander de Carvalho, Cláudio Barbosa, Rogério Flores Júnior, Felipe de Lucia Lobo   +5 more
doaj   +1 more source

Structures of mycobacterial 3‐methylcrotonyl‐CoA carboxylase reveal carrier‐domain translocation between catalytic sites

FEBS Letters, EarlyView.
Mycobacterial 3‐methylcrotonyl‐CoA carboxylase uses a mobile biotin‐carrying domain to shuttle a carboxyl group between two catalytic sites, enabling carboxylation of 3‐methylcrotonyl‐CoA during leucine breakdown. Cryo‐electron microscopy captures the carrier at both sites and reveals an inward loop movement that may prevent futile rebinding to the ...
Ajit Yadav, Bogdan I. Florea, Sebastian Geibel   +2 more
wiley   +1 more source

Evaluation of Satellite Retrievals of Chlorophyll-a in the Arabian Gulf

Remote Sensing, 2017
The Arabian Gulf is a highly turbid, shallow sedimentary basin whose coastal areas have been classified as optically complex Case II waters (where ocean colour sensors have been proved to be unreliable).
Noora Al-Naimi, Dionysios E. Raitsos, Radhouan Ben-Hamadou, Yousria Soliman   +3 more
doaj   +1 more source

The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation

FEBS Letters, EarlyView.
Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge, Vivian Pogenberg, Alexander Baumgart, Bente Siebels, Hartmut Schlüter, Michael Hecht‐Bucher, Aymelt Itzen   +6 more
wiley   +1 more source

Machine Learning in Extreme Value Analysis, an Approach to Detecting Harmful Algal Blooms with Long-Term Multisource Satellite Data

Remote Sensing, 2022
Long-term satellite observations have the ability to provide early warnings of harmful algal blooms (HABs). However, detecting HABs in optically complex coastal waters is somewhat challenging. In this article, we propose a two-step scheme, combining long
Weiwen Ye, Feng Zhang, Zhenhong Du
doaj   +1 more source