Results 11 to 20 of about 110,829 (308)

Quantification of methane oxidation in the rice rhizosphere using 13C-labelled methane [PDF]

open access: yes, 1994
In this paper isotope ratio mass spectrometry is used to determine the methane (CH4) oxidation fraction in the rhizosphere of intact rice plant-soil systems.
Harren, F.J.M.   +11 more
core   +1 more source

Methane oxidation and emission in Lake Lugano (Southern Switzerland) : a lipid biomarker and isotopic approach [PDF]

open access: yes, 2015
Methane is an important greenhouse gas in Earth's atmosphere. The sources of atmospheric methane are largely biogenic, being produced under anoxic conditions by methanogenic Archaea.
Blees, Hendrik Jan Reynier
core   +1 more source

A method to determine nuclear magnetic resonance T2 cutoff value of tight sandstone reservoir based on multifractal analysis

open access: yesEnergy Science & Engineering, 2020
Nuclear magnetic resonance (NMR) T2 cutoff value is an important parameter for pore structure evaluation. It is complicated and uneconomical to obtain T2 cutoff value by an experimental method; therefore, it is necessary to explore a prediction method of
Yunbing Hu   +6 more
doaj   +1 more source

Application of Biochar on methane production through organic solid waste and ammonia inhibition

open access: yesEnvironmental Challenges, 2021
The present study discusses the role of biochar in enhancing methane (biogas) production from organic solid waste (OSW) employing a co-culture of Pseudomonas aeruginosa and Methanosarcina mazei.
Apourv Pant, J.P.N. Rai
doaj   +1 more source

Upscaling methane emissions from rice paddies: problems and possibilities. [PDF]

open access: yes, 2002
Global methane emission estimates depend highly on the models, techniques, and databases used. Since emissions cannot be measured directly at large scales, it is impossible to judge which estimate is more realistic.
van Bodegom, P.M.   +4 more
core   +1 more source

METHANE PRODUCTION IN DAIRY COWS

open access: yesJournal of Dairy Science, 1979
Abstract The relationship among diet composition, intake, and methane production was investigated with data during 404 total energy balance trials with Holstein cows. Methane production in all trial was measure in open circuit respiration chambers. The most useful predictor of total methane productin was amounts of soluble residue, hemicellulose, and
P.W. Moe, H.F. Tyrrell
openaire   +1 more source

Methane production and colon cancer

open access: yesGastroenterology, 1984
The cause of the high incidence of methane producers in patients with colorectal cancer is not clear. A total of 270 individuals were studied for methane production, using an end-expiratory breath sampling technique. They were divided into eight groups: 156 healthy controls (group 1); 47 patients with colorectal cancer (group 2); 36 patients (34 of ...
J M, Piqué   +4 more
openaire   +2 more sources

Methane emission characteristics and model of coalbed methane wells in coal mining area

open access: yesMeikuang Anquan, 2022
Coalbed methane (CBM) development in coal mining area has good safety, economic and energy benefits, but methane emission is common in surface well sites.
MI Baichao   +4 more
doaj   +1 more source

Carbohydrate Type and Level Affect in Vitro Methane Production from Cecal Contents of White Roman Geese [PDF]

open access: yesBrazilian Journal of Poultry Science
The type of carbohydrate diet is an important factor in methane (CH4) emission from livestock. In this study, a structural carbohydrate (rice hull) was tested as a feed ingredient and compared with the use of a non-structural carbohydrate supplemented to
SM Lee, YH Chen, SY Wang, YS Chen, JC Ye
doaj   +1 more source

Attribution of production-stage methane emissions to assess spatial variability in the climate intensity of US natural gas consumption

open access: yesEnvironmental Research Letters, 2021
Although natural gas is often viewed as a commodity fuel with limited variability due to standardization for pipeline transportation, life cycle impacts of natural gas vary substantially.
Diana Burns, Emily Grubert
doaj   +1 more source

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