搜索结果: 1-15 共查到“知识库 理学 Methane”相关记录107条 . 查询时间(0.062 秒)
In vitro bioactivity of various pure flavonoids in ruminal fermentation, with special reference to methane formation
rumen ammonia Hohenheim Gas Test epicatechin isoquercetin luteolin-7-glucoside quercetin catechin tannic acid
2018/11/23
Polyphenols, like flavonoids, have been investigated when present in intact plants or in extracts as methane mitigating dietary supplements in ruminants. The aim of the present study was to examine pu...
In vitro Screening of Essential Oil Active Compounds for Manipulation of Rumen Fermentation and Methane Mitigation
Essential Oil Active Compounds Methane Production Volatile Fatty Acid Production
2016/7/27
The objective of this study was to investigate the effects of 11 active compounds of essential oils (ACEO) on rumen fermentation characteristics and methane production. Two trials were conducted. In t...
Mud volcanoes and microseepage: the forgotten geophysical components of atmospheric methane budget
methane lithosphere degassing mudvolcanoes greenhouse gas geodynamics
2015/9/10
Mud volcanoes and microseepage are two important natural sources of atmospheric methane, controlled by neotectonics
and seismicity. Petroleum and gas reservoirs are the deep sources, and faults and f...
Carbon dioxide and methane emissions from calcareous-marly rock under stress: experimental tests results
gas geochemistry earthquake precursors greenhouse gases
2015/9/10
The identified emissions of abiogenic carbon dioxide, carbon monoxide and methane are generally attributed to
volcanic activity or to geochemical processes associated with thermometamorphic effects. ...
Mud volcanoes and methane seeps in Romania: main features and gas flux
methane mud volcanoes Romania
2015/9/2
Romania is one of the European countries with the most vigorous natural seepage of methane, uprising from
pressurised natural gas and petroleum reservoirs through deep faults. The largest seepage zon...
Large Submarine Landslides on Continental Slopes: Geohazards, Methane Release, and Climate Change
Geohazards Methane Release Climate Change
2015/7/17
Submarine landslides on open continental slopes can be prodigious in scale. They are an important process for global sediment fluxes, and can generate very damaging tsunamis. Submarine landslides are ...
Uncertainties in estimating regional methane emissions from rice paddies due to data scarcity in the modeling approach
estimating regional methane emissions rice paddies
2014/12/18
Rice paddies are a major anthropogenic source
of the atmospheric methane. However, because of the high
spatial heterogeneity, making accurate estimations of the
methane emission from rice paddies i...
Modelling methane emissions from natural wetlands by development and application of the TRIPLEX-GHG model
development and application Modelling methane emissions
2014/12/18
A new process-based model TRIPLEX-GHG was
developed based on the Integrated Biosphere Simulator
(IBIS), coupled with a new methane (CH4) biogeochemistry
module (incorporating CH4 production, oxidat...
Present state of global wetland extent and wetland methane modelling: methodology of a model inter-comparison project (WETCHIMP)
global wetland extent wetland methane modelling model inter-comparison project
2014/12/12
The Wetland and Wetland CH4 Intercomparison of Models Project (WETCHIMP) was created to evaluate our present ability to simulate large-scale wetland characteristics and corresponding methane (CH4) emi...
Exploring Isotopic Signatures of Lake El'gygytgyn Sediments for Evidence of Anoxia and Methane Cycling over the Past 50,000 Years
Exploring Isotopic Signatures Lake El'gygytgyn Sediments Evidence of Anoxia and Methane Cycling over the Past 50,000 Years
2014/10/21
Compound specific isotope analysis of lake sediments is a powerful tool in deciphering evidence of changing climatic and paleoenvironmental conditions through time. Isotopic analysis of Lake El’gygytg...
Effect of Lactobacillus mucosae on In vitro Rumen Fermentation Characteristics of Dried Brewers Grain, Methane Production and Bacterial Diversity
Brewers Grain Culture Supernatant In vitro Rumen Fermentation Lactobacillus mucosae
2016/5/17
The effects of Lactobacillus mucosae (L. mucosae), a potential direct fed microbial previously isolated from the rumen of Korean native goat, on the rumen fermentation profile of brewers grain were ev...
Meta-analysis on Methane Mitigating Properties of Saponin-rich Sources in the Rumen: Influence of Addition Levels and Plant Sources
Saponin Methane Rumen Emission Fermentation
2016/5/17
Saponins have been considered as promising natural substances for mitigating methane emissions from ruminants. However, studies reported that addition of saponin-rich sources often arrived at contrast...
Carbon isotope variations in diploptene for methane hydrate dissociation during the last glacial episode in the Japan Sea/East Sea
diploptene methane hydrate dissociation carbon isotope glacial–interglacial sea-level changes
2017/4/11
Two piston cores (06GHSA P1 and 06GHSA P6) taken from the Ulleung Basin of the Japan Sea/East Sea were examined
for the presence of an organic compound, diploptene (hopanoid 17α(H),21β(H)-hop-22(29)-...
In vitro Fermentation, Digestion Kinetics and Methane Production of Oilseed Press Cakes from Biodiesel Production
Oilseed Press Cake Ruminal Fermentation Supplementation
2016/5/12
Following the extraction of oil for biodiesel production, oilseed press cakes are high in fat. As the dietary supplementation of fat is currently considered the most promising strategy of consistently...
Saccharomyces cerevisiae Live Cells Decreased In vitro Methane Production in Intestinal Content of Pigs
Pig Saccharomyces cerevisiae Volatile Fatty Acid
2016/5/12
An in vitro gas production technique was used in this study to elucidate the effect of two strains of active live yeast on methane (CH4) production in the large intestinal content of pigs to provide a...