Results 21 to 30 of about 806,958 (301)

Experimental approaches to low x at HERA [PDF]

open access: yes, 2002
Data are presented on the production of jets and pi^0 mesons at low Bjorken x in a kinematic region where standard DGLAP evolution in Q^2 gives little phase space for high p_t particle and jet production.
Gayler, Joerg
core   +3 more sources

Soil Bacteria Mediate Soil Organic Carbon Sequestration under Different Tillage and Straw Management in Rice-Wheat Cropping Systems

open access: yesAgriculture, 2022
Soil organic carbon (SOC) largely influences soil quality and sustainability. The effects of no-till (NT) and crop straw return practices (SR) on soil organic carbon sequestration have been well documented.
Lijin Guo   +8 more
doaj   +1 more source

Returning Tea Pruning Residue and Its Biochar Had a Contrasting Effect on Soil N2O and CO2 Emissions from Tea Plantation Soil

open access: yesAtmosphere, 2018
A laboratory incubation experiment is conducted for 90 days under controlled conditions where either pruning residue or its biochar is applied to determine which application generates the lowest amount of greenhouse gas from tea plantation soil. To study
Aung Zaw Oo   +5 more
doaj   +1 more source

Soil Nitrous Oxide Emissions Following Crop Residues Management in Corn-Wheat Rotation Under Conventional and No-Tillage Systems

open access: yesAir, Soil and Water Research, 2022
Agricultural activity is the major anthropogenic source of nitrous oxide (N 2 O) emissions from terrestrial ecosystems. Conservation agriculture including crop residue management can play a key role in enhancing soil resilience to climate change and ...
Morad Mirzaei   +7 more
doaj   +1 more source

Effects of dietary inclusion with rapeseed cake containing high glucosinolates on nitrogen metabolism and urine nitrous oxide emissions in steers

open access: yesAnimal Nutrition, 2022
Two consecutive trials were conducted to investigate the effects of glucosinolates (GLS) in rapeseed cake (RSC) on nitrogen (N) metabolism and urine nitrous oxide (N2O) emissions in steers. In trial 1, 8 steers and 4 levels of RSC, i.e.
Jian Gao   +4 more
doaj   +1 more source

Response Curves for Ammonia and Methane Emissions From Stored Liquid Manure Receiving Low Rates of Sulfuric Acid

open access: yesFrontiers in Sustainable Food Systems, 2021
Addition of sulfuric acid (H2SO4) to liquid dairy manure (slurry) reduces methane (CH4), nitrous oxide (N2O), and ammonia (NH3) emissions. There is interest in understanding how gaseous emissions respond to decreasing rates of acidification, to determine
Vera Sokolov   +8 more
doaj   +1 more source

Effects of an on line bypass oil recycler on emissions with oil age for a bus using in service testing [PDF]

open access: yes, 2001
A method of cleaning lubricating oil on line was investigated using a fine bypass particulate filter followed by an infra red heater. Two bypass filter sizes of 6 and 1 micron were investigated, both filter sizes were effective but the one micron ...
Andrews, G.E.   +4 more
core   +1 more source

Observation of J = 1 -> 0 emission from H15NC [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 1977
Emission from the J = 1-0 transition of H(N-15)C has been detected in the direction of DR21(OH). The transition frequency of 88,865.69 MHz was measured in the laboratory by microwave absorption spectroscopy. The computed N-15/C-13 isotopic abundance ratio of 1.01 for DR21(OH) is larger than those calculated from isotopes of HCN in other interstellar ...
R. D. Brown   +4 more
openaire   +1 more source

Widespread dominance of methane ebullition over diffusion in freshwater aquaculture ponds

open access: yesFrontiers in Water, 2023
An ever-increasing demand for protein-rich food sources combined with dwindling wild fish stocks has caused the aquaculture sector to boom in the last two decades.
Renske J. E. Vroom   +10 more
doaj   +1 more source

Impact of climate change on renewable groundwater resources : assessing the benefits of avoided greenhouse gas emissions using selected CMIP5 climate projections [PDF]

open access: yes, 2013
Reduction of greenhouse gas (GHG) emissions to minimize climate change requires very significant societal effort. To motivate this effort, it is important to clarify the benefits of avoided emissions. To this end, we analysed the impact of four emissions
Döll, Petra   +3 more
core   +1 more source

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