Results 91 to 100 of about 23,251 (260)

Diatom-driven activation of in-situ lunar resource utilization for space farming

open access: yesBiogeotechnics
In this study, we demonstrate that diatoms, through their bioweathering process, can enhance the properties of lunar soil, thereby facilitating the cultivation of crops.
Dong Liu, Yuxin Zhang
doaj   +1 more source

Mechanism Based Evaluation of Scratch Damage in Diatom Frustule Reinforced Epoxy Composites

open access: yesPolymer Composites, EarlyView.
Mechanism‐based interpretation of scratch deformation in diatom frustule reinforced epoxy composites through the combined evaluation of scratch hardness, penetration depth, relative cutting volume (RCV), profilometry, SEM observations, and statistical analysis.
Elif Gültürk, Salih Talha Yıldırım
wiley   +1 more source

Scaling turbulence drives the general circulation

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
The NOAA Gulfstream SP4, which deployed the GPS dropsondes over the NE Pacific Ocean as part of the Winter Storms Project during the January–March periods of 2004, 2005 and 2006. Abstract Statistical multifractal analysis of airborne and dropsonde observations is used to show that persistence of velocity after molecular collisions breaks the continuous
Adrian F. Tuck
wiley   +1 more source

Global Warming and Mass Extinctions Associated With Large Igneous Province Volcanism

open access: yesGeophysical Monograph Series, Page 83-102., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
David P. G. Bond, Yadong Sun
wiley  

+1 more source

Effects of Engineered Dam Releases on Benthic Assemblages During Drought and Comparison With Unregulated Reaches

open access: yesRiver Research and Applications, EarlyView.
ABSTRACT River regulation following damming is often associated with deleterious downstream effects, in large part due to reduced total discharge and disruption of seasonal flooding. These effects would be expected to be exacerbated by drought, particularly extended drought.
Jeffrey G. Holmquist   +1 more
wiley   +1 more source

The quantitative changes of Silicon and Diatoms in southern part of Caspian Sea

open access: yes‬‭Majallah-i ̒Ilmī-i Shīlāt-i Īrān, 2000
The purpose or this study was to evaluate the changes of dissolved silicon concentration and biomass of diatoms in southern part of Caspian Sea, 1270 plankton and water samples were collected seasonally from 77 stations for further quantitative and ...
H. Nasrolah zadeh saravi; A. Makhlogh
doaj  

Automated object detection based on YOLOv11 for monitoring benthic population dynamics: A new approach combining photogrammetry and open‐source GIS tools applied to sea cucumbers

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
This research established a new object detection model based on YOLOv11 to recognise benthic organisms, specifically sea cucumbers, by utilising high‐resolution photogrammetric‐based orthomosaics acquired along infralittoral Mediterranean Sea beds. The model demonstrated impressive performance metrics and, when combined with the Deepness plugin for the
Gian Mario Sangiovanni   +9 more
wiley   +1 more source

Effect of Metal–Metal Distance on the Performance of Dual‐Atom Catalysts for the Oxygen Reduction Reaction: A Density Functional Theory and Micro‐kinetics Study

open access: yesSmall, EarlyView.
Density functional theory calculations and microkinetic modeling were carried out on 108 dual‐atom catalysts with varied metalmetal distances ranging from 2.2 to 3.5 Å. The results reveal that moderate spacing of around 3.0 Å promotes bridging oxygen adsorption and dissociative reduction pathways, weakens the hydroxylhydroperoxyl scaling relationship ...
Yu Mao   +7 more
wiley   +1 more source

Selective Production of Methanol via Bidentate Coordination of an Intermediate on the Dual‐Atom Electro‐Catalyst

open access: yesSmall Methods, EarlyView.
This study utilizes density functional theory (DFT) and constrained molecular dynamics (cMD) to investigate the free energy landscape of the electrochemical CO2 reduction reaction at a liquid–solid interface. The research highlights a dual‐atom catalyst—specifically a Cu─Sn pair anchored in a nitrogen‐doped carbon framework—that facilitates the ...
Imran Muhammad   +7 more
wiley   +1 more source

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