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Dissolved organic carbon in rainwater: Glassware decontamination and sample preservation and volatile organic carbon
(Elsevier B.V., 2007-12-01)
The efficiency of different methods for the decontamination of glassware used for the analysis of dissolved organic carbon (DOC) was tested using reported procedures as well as new ones proposed in this work. A Fenton ...
Las reservas carboníferas nacionales.
(REVISTA MINERALES, 1955)
Organic farming does not increase soil organic carbon compared to conventional farming if there is no carbon transfer from other agroecosystems: A meta-analysis
(Csiro Publishing, 2021-11)
Context: Organic farming is based on the non-use of synthetic fertilisers and pesticides. Nitrogen inputs are derived from symbiotic fixation and organic fertilisers, which also contribute carbon to the agroecosystem. Soil ...
Surface study of vitreous carbon obtained from glassy carbon powder
(2012-05-22)
This work presents a surface study of monolithic vitreous (or glassy) carbon - MVC - obtained from vitreous carbon powder. Defective MVC pieces are crushed in a ball mill and size classified by sifting. The MVC powder is ...
Production and Characterization of Activated Carbon Fiber from Textile PAN Fiber
(Inst Aeronautica & Espaco-Iae, 2017)
This paper presents the preparation and characterization of carbon fiber felt and activated carbon fiber felt from textile polyacrylonitrile fiber. Carbon fibers are usually related to aircraft manufacturing or high ...
Carbon dioxide emissions under different soil tillage systems in mechanically harvested sugarcane
(2013-01-01)
Soil tillage and other methods of soil management may influence CO 2 emissions because they accelerate the mineralization of organic carbon in the soil. This study aimed to quantify the CO2 emissions under conventional ...