Results 81 to 90 of about 64,085 (311)

Nutritional requirements for the production of dithiolopyrrolone antibiotics by Saccharothrix algeriensis NRRL B-24137 [PDF]

open access: yes, 2006
The amino acid and humic acid requirements of Saccharothrix algeriensis NRRL B-24137 for growth and production of the dithiolopyrrolone antibiotics were studied in a semi-synthetic medium (SSM).
Bouras, Noureddine   +3 more
core   +2 more sources

A Leaf‐Inspired Janus‐Structured Triboelectric‐Moisture Hybrid Energy Harvester

open access: yesAdvanced Energy Materials, EarlyView.
This study proposes a bioinspired Janus structured energy‐leaf with hybrid triboelectric‐moisture hybrid energy harvesters. This hybrid energy harvester is demonstrated in an intelligent emergency system for effective distress signaling and evacuation guiding during potential crises.
Liang Wei   +10 more
wiley   +1 more source

Caracterização estrutural das substâncias húmicas aquáticas extraídas dos rios itapanhaú e ribeira de iguape

open access: yesQuímica Nova, 2011
The knowledge of the structure characteristic of the Organic Matter is important for the understanding of the natural process. In this context aquatic humic substances (principal fraction) were isolated from water sample collected from the two distinct ...
Danielle Goveia   +6 more
doaj   +1 more source

Sulfate Reduction in Sediments Produces High Levels of Chromophoric Dissolved Organic Matter [PDF]

open access: yes, 2017
Sulfate reduction plays an important role in altering dissolved organic matter (DOM) in estuarine and coastal sediments, although its role in the production of optically active chromophoric DOM (CDOM) and a subset of fluorescent DOM (FDOM) has not been ...
Gonsior, Michael   +4 more
core   +2 more sources

Aquatic Humic Substances [PDF]

open access: yes, 1988
Introduction: Aquatic Humic Substances and Their Influence on the Fate and Treatment of Pollutants Chemical Degradation of Humic Substances for Structural Characterization Implications of Mixture Characteristics on Humic-Substance Chemistry Characterization of a Stream Sediment Humin The Nature of Commercial Humic Acids Analysis of Humic Substances ...
openaire   +1 more source

Stage‐Specific Roles of Deep Eutectic Solvents in Recycling of Spent Lithium‐Ion Batteries

open access: yesAdvanced Energy Materials, EarlyView.
Deep eutectic solvents (DESs) offer tunable acidity, redox, and coordination properties for selective recycling of spent lithium‐ion battery cathodes. Through co‐dissolution, single‐ and two‐metal separations, DESs enable sustainable recovery of critical metals for closed‐loop regeneration of battery‐grade materials, advancing a circular economy for ...
Jingxiu Wang   +4 more
wiley   +1 more source

Technical Note: Comparison of storage strategies of sea surface microlayer samples [PDF]

open access: yes, 2013
The sea surface microlayer (SML) is an important biogeochemical system whose physico-chemical analysis often necessitates some degree of sample storage.
Mann, Paul   +3 more
core   +3 more sources

Humic Substances Potential Use

open access: yesModern Techniques in Agricultural and Horticultural Sciences, 2021
There are studies that demonstrate several benefits of humic substances in agriculture. Based on this, this mini review aimed to present the main effects of the use of humic substances on the soil and the plant. For this, bibliographical references were used with an approach to humic substances on a world scale.
openaire   +1 more source

Who Are the Farmers Participating in a Carbon Sequestration Program? Results of a Discrete Choice Experiment in Germany

open access: yesAgribusiness, EarlyView.
ABSTRACT Agricultural soils offer great potential for carbon sequestration through humus formation. One way to motivate farmers to build up humus is through humus programs. These are still at an early stage of development, poorly explored, and the number of participating farmers is low. Our aim is to explain the heterogeneity of farmers' willingness to
Julia B. Block   +2 more
wiley   +1 more source

Effect of Mineral and Humic Substances on Tailing Soil Properties and Nutrient Uptake by Pennisetum Purpureum Schumach [PDF]

open access: yes, 2015
Tin mining produces a by-product sand tailing from soil leaching with characteristic low pH and total organic carbon, and can be reclaimed by providing a suitable ameliorant.  When available in situ, ameliorant materials can be economically used as ...
Etika, A. P. (Adhe), Hasan, R. (Rahmat)
core  

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