Results 111 to 120 of about 102,757 (351)

Study on Functional Groups and Humic Acid Content of Lignite Based on Fourier Transform Infrared Spectroscopy

open access: yesTaiyuan Ligong Daxue xuebao
Purposes It is of great significance to explore the correlation between lignite properties and humic acid content, and to predict humic acid content. Methods In this paper, three kinds of lignite sample from Ningxia, Inner Mongolia, and Xinjiang were ...
JIN Wei   +5 more
doaj   +1 more source

Mitigation of Humic Acid Inhibition in Anaerobic Digestion of Cellulose by Addition of Various Salts

open access: yesBioengineering, 2015
Humic compounds are inhibitory to the anaerobic hydrolysis of cellulosic biomass. In this study, the impact of salt addition to mitigate the inhibitory effects of humic compounds was investigated. The experiment was conducted using batch tests to monitor
Samet Azman   +4 more
doaj   +1 more source

Efficient Enantiomeric Selectivity Separation Via Homochiral Graphene Oxide Membrane

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A new type of chiral graphene oxide (GO) membrane is proposed that exhibits a separation factor of up to 20.1 as well as a preferential enantiomer flux of 4.5 mmol m−2 h−1. Moreover, the only first FPLC‐compatible column has been further developed via stacking these chiral GO membranes.
Junbo Wang   +10 more
wiley   +1 more source

Biomineralization of primary carbonate cements: a new biosignature in the fossil record from the Anisian of Southern Italy

open access: yesLethaia, EarlyView., 2021
Biomineralization is a generic term used to indicate biological‐mediated mineral formation. In carbonate mineralization, nucleation of crystals can be: (1) controlled directly by the organisms, like in the skeletal formation of most metazoans; (2) induced by microbial communities, by indirect precipitation mediated by their metabolic activities; or (3)
Adriano Guido   +4 more
wiley   +1 more source

Humic acid as a growth booster: Evaluating its synergistic influence on three red radish varieties

open access: diamond, 2023
Kashif Hussain   +7 more
openalex   +2 more sources

TLC Determination of Aquatic Humic Acids

open access: yesWater Science and Technology, 1992
Humic acids are mostly determined by spectroscopic methods, although they are not accurate enough, because humic acids possess no maximum absorption at any wavelength in the ultraviolet and visible spectrum. In this contribution the accurate and precise method for aquatic humic acids determination, using thin layer chromatography, was worked out ...
Kaštelan-Macan, Marija   +2 more
openaire   +3 more sources

Confinement−Adsorption Synergy in Hybrid Carbon‐Coated Separator Enables Stable High‐Rate Quinone Cathode for Magnesium Batteries

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A sulfur‐containing heterocyclic quinone cathode for rechargeable magnesium batteries is coupled with a GO/MWCNTs–COOH separator that establishes a confinement–adsorption regulation mechanism, thereby significantly accelerating Mg2+ reaction kinetics and minimizing active‐material loss.
Xiquan Qi   +3 more
wiley   +1 more source

The Effect of Natural Dissolved Organic Carbon on the Acute Toxicity of Copper to Larval Freshwater Mussels (\u3cem\u3eGlochidia\u3c/em\u3e) [PDF]

open access: yes, 2010
The present study examined the effect of dissolved organic carbon (DOC), both added and inherent, on Cu toxicity in glochidia, the larvae of freshwater mussels.
Ackerman, Josef D.   +4 more
core   +1 more source

Home - About - Disclaimer - Privacy