Results 51 to 60 of about 7,001 (209)

Taking the pulse of snowmelt: in situ sensors reveal seasonal, event and diurnal patterns of nitrate and dissolved organic matter variability in an upland forest stream [PDF]

, 2011
Highly resolved time series data are useful to accurately identify the timing, rate, and magnitude of solute transport in streams during hydrologically dynamic periods such as snowmelt. We used in situ optical sensors for nitrate (NO3 −) and chromophoric
Aiken, George R., Bergamaschi, Brian A., Pellerin, Brian A., Saraceno, John Franco, Sebestyen, Stephen D., Shanley, James B., Wollheim, Wilfred M.   +6 more
core   +3 more sources

Natural Anthraquinone‐Like Compound Extracted from Green Husk of Walnut Improves Photocatalytic H2O2 Production Catalyzed by TiO2 Nanoparticles

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
In this work, a novel biomolecule/semiconductor hybrid catalyst was prepared by loading anthraquinone‐liked juglone onto anatase TiO2. This catalyst exhibited high photocatalytic activity for H2O2 production. Hydrogen peroxide (H2O2) is a vital oxidant with broad industrial applications, and its production via photocatalysis represents a highly ...
Zengyin He, Cui Li, Mingze Ni, Shu Lin, Kezhen Qi   +4 more
wiley   +1 more source

Mismatched dynamics of dissolved organic carbon and chromophoric dissolved organic matter in the coastal NW Mediterranean Sea

Science of The Total Environment, 2020
Coastal marine ecosystems are strongly influenced by different occasional events, such as intense winds, mixing, rain and river discharges. These events can directly or indirectly cause changes in dissolved organic matter (DOM) quality through a cascade of different biotic and abiotic processes.
D.Sánchez-Pérez, Elvia, Pujo-Pay, Mireille, Ortega-Retuerta, Eva, Conan, Pascal, Peters, Francesc, Marrasé, Cèlia   +5 more
openaire   +5 more sources

In-Situ Variability of DOM in Relation with Biogeochemical and Physical Parameters in December 2017 in Laucala Bay (Fiji Islands) after a Strong Rain Event

Journal of Marine Science and Engineering, 2021
Heavy rain events alter the biogeochemical outflows, affects water quality and ecosystem health within the coastal waters of small Pacific Islands. We characterized snapshots of the optical fingerprints of dissolved organic matter (DOM) sources together ...
Timoci Koliyavu, Chloe Martias, Awnesh Singh, Stéphane Mounier, Philippe Gérard, Cecile Dupouy   +5 more
doaj   +1 more source

A Compact Circularly Polarized Luminescence Emitter–Chirality of a [2.2]‐Paracyclophane Macrocycle

Helvetica Chimica Acta, EarlyView.
A comprehensive chiroptical study of a [2.2]paracyclophane‐based (PCP) macrocycle and its synthetic open precursor reveals intense chiroptical responses. Featuring strong electric circular dichroism (ECD) bands and high luminescence dissymmetry factors (|glum|≈ 10−2), this scaffold serves as an ideal model for investigating chirality and developing ...
Salome L. Heim, Adriano D'Addio, Olaf Fuhr, Dieter Fenske, Marcel Mayor   +4 more
wiley   +1 more source

Predicting dissolved lignin phenol concentrations in the coastal ocean from chromophoric dissolved organic matter (CDOM) absorption coefficients

Frontiers in Marine Science, 2016
Dissolved lignin is a well-established biomarker of terrigenous dissolved organic matter (DOM) in the ocean, and a chromophoric component of DOM. Although evidence suggests there is a strong linkage between lignin concentrations and chromophoric DOM ...
Cédric G. Fichot, Ronald eBenner, Ronald eBenner, Karl eKaiser, Karl eKaiser, Yuan eShen, Rainer M. W. Amon, Hiroshi eOgawa, Chia-Jung eLu   +8 more
doaj   +1 more source

The Contribution of Methane Photoproduction to the Oceanic Methane Paradox

Geophysical Research Letters, 2020
Although methanogenesis is considered a strictly anaerobic process, oxygen‐replete surface open‐ocean waters are usually supersaturated with methane (CH4), a phenomenon termed the oceanic methane paradox.
Y. Li, C. G. Fichot, L. Geng, M. G. Scarratt, H. Xie   +4 more
doaj   +1 more source

Dynamics of chromophoric dissolved organic matter in Mandovi and Zuari estuaries - A study through in situ and satellite data [PDF]

, 2011
The spatial and temporal distribution of absorption of chromophoric dissolved organic matter at 440 nm (a CDOM (440)) in the Mandovi and Zuari estuaries situated along the west coast of India, has been analysed.
Lotliker, AA, Menon, HB, Sangekar, NP, Vethamony, P   +3 more
core   +1 more source

Changes in DOM Quality Determine Prokaryotic Activities and Extracellular Release in the NW Mediterranean Sea: An Experimental Approach

Environmental Microbiology Reports, Volume 18, Issue 3, June 2026.
Changes in DOM composition influence prokaryotic species growth in the Mediterranean Sea, shaping their metabolic responses and organic matter processing. In our study, higher DOP consumption and alkaline phosphatase activity led to the accumulation of recalcitrant DOM, highlighting how microbial community shifts drive distinct pathways in carbon ...
Eva Ortega‐Retuerta, Nawal Bouchachi, Rebeca Campos, Olivier Crispi, Barbara Marie, Charles‐Hubert Paulin, Karine Escoubeyrou, Jonathan Colombet, Telesphore Sime‐Ngando, Anabel Von Jackowski   +9 more
wiley   +1 more source

Color and COD Removal From ECF Effluent by Airlift Reactor With Immobilized Lentinus edodes

Chemical Engineering &Technology, Volume 49, Issue 5, May 2026.
Airlift bioreactor treating ECF bleaching effluent with Lentinus edodes immobilized on polystyrene fibers achieved up to 48% color and 41% COD removal. Under optimized aeration (300 mL/min) and HRT (78 h) without glucose, COD removal remained stable for 15 days, supporting a low‐input, enzyme‐driven strategy for pulp‐and‐paper wastewater. ABSTRACT This
Érica Simplício de Souza, Walter Oliva Pinto Filho Segundo, João Vicente Braga de Souza, Flávio Teixeira, Teresa Cristina Brasil de Paiva   +4 more
wiley   +1 more source