Results 21 to 30 of about 396,940 (313)

Geochemical Characteristics of Released Organic Matters by Acid Decomposition of Hydrocarbon Source Rocks from Different Sedimentary Basins

open access: yesGeofluids, 2019
It has been acknowledged that carbonate was identified as the source rocks of a series of oil-gas fields worldwide. For evaluating the carbonate source rocks, total organic carbon (TOC) contents act as an important indicator.
Peng Liu   +4 more
doaj   +1 more source

The use of Spectroquant Merck BOD photometric test to evaluate the stabilityof organic matters in soil

open access: yesPlant, Soil and Environment, 2005
We proposed a new method to determine the rate constant of biochemical oxidation of soil organic matters that makes it possible to evaluate their stability by Spectroquant Merck BOD photometric tests; if smaller samplings are used and individual ...
L. Kolář   +7 more
doaj   +1 more source

Palynofacies Analysis and Hydrocarbon Generation Potential of the Tithonian-Beriassian Chia Gara Formation from Selected Wells in Ajil, Hamrin, and Tikrit Oilfields, Northern Iraq [PDF]

open access: yesKirkuk Journal of Science, 2018
The recovered sedimentary organic matter from the Tithonian-Berriasian Chia Gara Formation was studied from three selected wells of Ajil-12 (Aj-12), Hamrin-1 (Hr-1), and Tikrit-3 (Tk-3) in Northern Iraq.
Pavel T. Al-Jabary   +2 more
doaj   +1 more source

Adsorption characterization for multi-component organic matters by titanium oxide (TiO2) in wastewater [PDF]

open access: yes, 2007
In this study, an experimental and analytical study on adsorption and adsorption kinetics of organic matters in titanium oxide (TiO2, Degussa P25) with synthetic wastewater was investigated.
Kim, SH, Shon, HK
core   +1 more source

SEBUAH DILEMA PERTANIAN ORGANIK TERKAIT EMISI METAN (A Dilemma on Organic Farming in Relation to Methane Emission)

open access: yesJurnal Manusia dan Lingkungan, 2015
ABSTRAK Gas metana (CH4) adalah salah satu gas rumah kaca yang cukup berperan setelah CO2. Peningkatan metana di atmosfer pada belakangan ini perlu diantisipasi mengingat daya pemanasan global yang ditimbulkannya per satu molekul gas metana di troposfer
Ernitha Panjaitan   +3 more
doaj   +1 more source

Exploring the Potential of Developmental Work Research and Change Laboratory to Support Sustainability Transformations:A Case Study of Organic Agriculture in Zimbabwe [PDF]

open access: yes, 2018
This paper explores the emergence of transgressive learning in CHAT-informed development work research in a networked organic agriculture case study in Zimbabwe, based on intervention research involving district organic associations tackling ...
McAllister, Georgina   +3 more
core   +2 more sources

Biomarker Indicators of Source and Depositional Environment for the Organic Matters within Barsarin Formation (Upper Jurassic) in Kirkuk and Taq Taq Oil Fields, Northern Iraq [PDF]

open access: yesKirkuk Journal of Science, 2008
The GC, GC/MS analysis for twelve bitumen extracts from Barsarin Formation in the wells K-109 and Tq-1 (Kirkuk and Taq Taq oil fields respectively) and for two oil samples from K-156 and Tq-1 wells revealed a euxinic, carbonate marine to mix environment ...
Dler H. Baban and Shadan M. Ahmed
doaj   +1 more source

Simulation of ecological impacts of the new outer-harbour development in Zeebrugge [PDF]

open access: yes, 1984
The new outer-harbour in Zeebrugge is to be protected by jetties extending 1,750 m seaward, This development will alter the local distribution of tidal and residual currents.
Adam, Y.A.   +3 more
core   +1 more source

Visualizing Mineral-Associated Organic Matters in Long-Term Fertilization Treated Soils by NanoSIMS and SR-FTIR

open access: yesFrontiers in Soil Science, 2022
Formation of mineral-associated organic matters is essential for long-term soil organic carbon preservation. However, the regulation pathways of mineral-associated organic matters in soils remains largely undescribed, especially at the submicron scale ...
Guang-Hui Yu, Sha Liu
doaj   +1 more source

Organic matter in space - An overview [PDF]

open access: yesProceedings of the International Astronomical Union, 2008
AbstractOrganic compounds are ubiquitous in space: they are found in diffuse clouds, in the envelopes of evolved stars, in dense star-forming regions, in protoplanetary disks, in comets, on the surfaces of minor planets, and in meteorites and interplanetary dust particles.
openaire   +3 more sources

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