Results 81 to 90 of about 4,226,523 (171)

Spatial Distribution and the Key Impact Factors of Soil Selenium of Cultivated Land in Lianyuan City, China

open access: yesAgriculture
Selenium (Se) is a micronutrient that has attracted significant attention, because the threshold for human health is low. During soil surveys in China, large areas of low-Se soil were found, and this condition may increase the probability of people ...
Siyu Guo   +5 more
doaj   +1 more source

Evolution of Permian Sedimentary Environment in South China: Constraints on Heterogeneous Accumulation of Organic Matter in Black Shales

open access: yes
Permian black shale, as a potential target for marine shale gas exploration in South China, is characterized by its great thickness and organic matter (OM) content.
Weibing Shen   +3 more
core   +1 more source

Sealing Effects on Organic Pore Development in Marine Shale Gas: New Insights from Macro- to Micro-Scale Analyses

open access: yesEnergies
The physics of how organic pores change under high thermal evolution conditions in overmature marine shale gas formations remains unclear. In this study, systematic analyses at the macro- to micro-scales were performed to reveal the effects of the ...
Qiumei Zhou   +5 more
doaj   +1 more source

Formation professionnelle

open access: yes, 1993
Publ.
Centre européen pour le développement de la formation professionnelle
core   +2 more sources

Pore Development Characteristics of Shales in the Dalong Formation, Western Hubei, Under the Coupled Control of Authigenic Quartz–Clay Minerals–Organic Matter

open access: yesMinerals
The upper Permian Dalong Formation in western Hubei Province is a crucial strategic successor for shale gas development in South China. However, the geological controls on reservoir pore development, particularly the influence of organic–inorganic interactions on the pore system, remain poorly understood.
Xing Niu, Yin Gong, Yan Ling
openaire   +1 more source

Formation professionnelle

open access: yes, 1995
Publ. comme no 7, janv./avril 1996 de la revue Formation professionnelleL'évolution des fonctions de la formation -- Enseignement ouvert -- Modularisation : aspects du débat en Allemagne et au Royaume-Uni -- Développement de compétences et organisation ...
Centre européen pour le développement de la formation professionnelle
core   +1 more source

Stratigraphic division and sedimentary environment of the Permian Wujiaping Formation in the Longmen-Wushankan area of the Eastern Sichuan Basin: insights for shale gas exploration

open access: yesGeomechanics and Geophysics for Geo-Energy and Geo-Resources
The Longmen–Wushankan area, a newly emerging region in the Sichuan Basin, has seen significant exploration activities across the Permian marine shale gas following a breakthrough in the Hongxing area.
Lin Zhan   +10 more
doaj   +1 more source

Organic matter distribution and preservation in the latest Permian Dalong Formation in the Northeast Sichuan Province, South China

open access: yesOrganic matter distribution and preservation in the latest Permian Dalong Formation in the Northeast Sichuan Province, South China
The 2nd International Symposium on Earth History of Asia 31 October – 3 November, Niigata ...
openaire   +1 more source

Secteur de formation 19 : santé

open access: yes, 2008
Titre de l'écran-titre (visionné le 21 août 2008)"Secteur de formation 19 ...
Fons, Jean-Pierre   +4 more
core   +1 more source

Formation professionnelle

open access: yes, 1996
Publ. comme no 7, janv./avril 1996 de la revue Formation professionnelleL'évolution des fonctions de la formation -- Enseignement ouvert -- Modularisation : aspects du débat en Allemagne et au Royaume-Uni -- Développement de compétences et organisation ...
Centre européen pour le développement de la formation professionnelle
core  

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