Results 91 to 100 of about 23,197 (262)

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  

Coherent Stokes Raman Scattering for Simultaneous Measurement of CO2 and CH4 Temperatures

open access: yesJournal of Raman Spectroscopy, EarlyView.
A three‐beam hybrid fs/ps CSRS method is employed to excite the rovibrational transitions in the Fermi‐dyad of CO2$$ {}_2 $$ and the v2$$ {v}_2 $$ mode of CH4$$ {}_4 $$. Time‐domain spectroscopic models are developed to extract the fuel and flame temperature profiles from experimental CH4$$ {}_4 $$ and CO2$$ {}_2 $$ spectra in a diffusion flame ...
Alexander M. Warner   +3 more
wiley   +1 more source

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

Statistical filtering to aid in the sorting of phytoplankton: The effects of image library size and phytoplankton shape

open access: yesLimnology and Oceanography: Methods, EarlyView.
Abstract The demand for efficient image sorting methods has increased due to technological advancements that enable more intensive phytoplankton monitoring. Both statistical and machine learning algorithms can misidentify algal taxa in taxonomically diverse samples, in which phytoplankton morphology and image traits can vary.
Christopher R. Farrow, Josef D. Ackerman
wiley   +1 more source

A simplified two‐station approach for modeling metabolism in dam tailwaters subject to diel flow variation

open access: yesLimnology and Oceanography: Methods, EarlyView.
Abstract Tailwaters are ubiquitous and highly managed ecosystems whose food webs often rely disproportionately on autochthonous energy. In situ continuous dissolved oxygen data are increasingly being used to estimate gross primary productivity and ecosystem respiration in rivers, but this approach is complicated in tailwaters, where upriver ...
Ian W. Bishop   +5 more
wiley   +1 more source

Recent Advances in Photonic Bound States in the Continuum: From Fundamentals to Engineering and Implementation

open access: yesLaser &Photonics Reviews, EarlyView.
This review summarizes recent progress in meta‐photonics with a focus on bound states in the continuum (BICs) as a powerful platform for light confinement and control. It covers fundamental concepts, design strategies across optical regimes, symmetry breaking for practical quasi‐BICs, tunable and AI‐assisted BIC devices, and emerging applications in ...
Hafiz Saad Khaliq, Hak‐Rin Kim
wiley   +1 more source

Mobilization of Plasmids from Bacteria into Diatoms by Conjugation Technique

open access: yesBio-Protocol
Diatoms serve as a source for a variety of compounds with particularbiotechnological interest. Therefore, redirecting the flow to a specific pathwayrequires the elucidation of the gene’s specific function.
Federico Berdun   +3 more
doaj   +1 more source

Harnessing microbial power to degrade hydrocarbon‐based plastics

open access: yesmLife, EarlyView.
Abstract The growing global plastic waste crisis demands the development of urgent, effective, and sustainable solutions. While conventional recycling methods present intrinsic limitations, microbial biodegradation of plastic waste has emerged as a promising alternative.
Hui Li   +4 more
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

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

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