Results 61 to 70 of about 185,610 (340)

The use of diatom records to establish reference conditions for UK lakes subject to eutrophication [PDF]

, 2011
A knowledge of pre-disturbance conditions is important for setting realistic restoration targets for lakes. For European waters this is now a requirement of the European Council Water Framework Directive where ecological status must be assessed based on ...
Bennion, H, Simpson, GL
core  

Mid-Miocene cooling and the extinction of tundra in continental Antarctica [PDF]

, 2008
A major obstacle in understanding the evolution of Cenozoic climate has been the lack of well dated terrestrial evidence from high-latitude, glaciated regions.
Ashworth, A.C., Hedenas, L., Hemming, S.R., Johnson, J.V., Leng, Melanie, Lewis, A.R., Machlus, M.L., Marchant, D.R., Newton, A.E., Raine, I., Willenbring, J.K., Williams, M., Wolfe, A.P.   +12 more
core   +1 more source

Is Young's Modulus a Critical Coating Property Determining Fouling‐Release Performance of Marine Coatings?

Advanced Engineering Materials, EarlyView.
The release of foulers from protective marine coatings is determined by several interrelated material properties, including the strength of Young's modulus, the flexibility of chain segments, the surface free energy, and the magnitude of hydrodynamic stress.
Johann C. Schaal, Andreas Brinkmann, Andreas Hartwig   +2 more
wiley   +1 more source

A simple method for taxon-specific purification of diatom frustules from ocean sediments using a cell sorter

Progress in Earth and Planetary Science, 2023
It is necessary to purify diatom frustules by taxon to perform accurate geochemical analyses of diatom fossils preserved in sediments. However, the small size of diatoms has hitherto prevented taxon-specific purification; therefore, previous geochemical ...
Yuji Kato, Yuki Morono, Akira Ijiri, Takeshi Terada, Minoru Ikehara   +4 more
doaj   +1 more source

A worldwide listing and biogeography of freshwater diatom genera: a phylogenetic perspective

Diatom Research, 2018
A listing of the accepted freshwater diatom genera worldwide is presented, indicating the distribution of the genera by continent. Out of a total of 249 genera, 63 (25%) of those genera are endemic to a single continent.
J. Kociolek
semanticscholar   +1 more source

Multimodal Mechanical Testing of Additively Manufactured Ti6Al4V Lattice Structures: Compression, Bending, and Fatigue

Advanced Engineering Materials, EarlyView.
In this experimental study, the mechanical properties of additively manufactured Ti‐6Al‐4V lattice structures of different geometries are characterized using compression, four point bending and fatigue testing. While TPMS designs show superior fatigue resistance, SplitP and Honeycomb lattice structures combine high stiffness and strength. The resulting
Klaus Burkart, Jonas Schmidt, Anastasiya Toenjes, Johanna Eisenträger   +3 more
wiley   +1 more source

Bioelectromics of a photosynthetic microalgae assisted microbial fuel cell for wastewater treatment and value added production

Scientific Reports
Power generation and recovery of value-added products using microalgae, Haematococcus lacustris is tested in a dual chamber photosynthetic microalgae-assisted microbial fuel cell (PMA-MFCt1). The microalgal cells in conical flask act as control.
Ankesh Ahirwar, Mohd Jahir Khan, Priyanka Khandelwal, Gurpreet Singh, Harish, Vandana Vinayak, Makarand Madhao Ghangrekar   +6 more
doaj   +1 more source

Diatom Biogeography, Temporal Dynamics, and Links to Bacterioplankton across Seven Oceanographic Time-Series Sites Spanning the Australian Continent

Microorganisms, 2022
Diatom communities significantly influence ocean primary productivity and carbon cycling, but their spatial and temporal dynamics are highly heterogeneous and are governed by a complex diverse suite of abiotic and biotic factors. We examined the seasonal
Nine Le Reun, Anna Bramucci, James O’Brien, Martin Ostrowski, Mark V. Brown, Jodie Van de Kamp, Levente Bodrossy, Jean-Baptiste Raina, Penelope Ajani, Justin Seymour   +9 more
doaj   +1 more source

Atomic Size Misfit for Electrocatalytic Small Molecule Activation

Advanced Functional Materials, EarlyView.
This review explores the application and mechanisms of atomic size misfit in catalysis for small molecule activation, focusing on how structural defects and electronic properties can effectively lower the energy barriers of chemical bonds in molecules like H2O, CO2, and N2.
Ping Hong, Changfan Xu, Huaping Zhao, Yong Lei   +3 more
wiley   +1 more source

Increasing opal productivity in the Late Eocene Southern Ocean: Evidence for increased carbon export preceding the Eocene-Oligocene glaciation [PDF]

Climate of the Past
The Eocene/Oligocene Transition represents a period of profound changes in diatom productivity and evolutionary history within the Cenozoic era.
V. Özen, V. Özen, J. Renaudie, D. Lazarus, G. Rodrigues de Faria, G. Rodrigues de Faria   +5 more
doaj   +1 more source