Results 11 to 20 of about 508,769 (269)

Defective Interfering Particles of Poliovirus IV. Mechanisms of Enrichment [PDF]

open access: yesJournal of Virology, 1973
Infection of HeLa cells by mixtures of standard poliovirus and defective, interfering (DI) poliovirus particles leads to a higher ratio of DI particles in the progeny than in the inoculum. The extent of this enrichment could be varied by various manipulations of the co-infected cells.
Cole, Charles N., Baltimore, David
openaire   +2 more sources

Formalizing Enrichment Mechanisms for Bibliographic Ontologies in the Semantic Web [PDF]

open access: yes, 2019
This paper presents an analysis of current limitations to the reuse of bibliographic data in the Semantic Web and a research proposal towards solutions to overcome them. The limitations identified derive from the insufficient convergence between existing bibliographic ontologies and the principles and techniques of linked open data (LOD); lack of a ...
Helena Simões Patrício   +2 more
openaire   +2 more sources

Exploration breakthrough and its significance of Gulong lacustrine shale oil in the Songliao Basin, Northeastern China

open access: yesEnergy Geoscience, 2022
Lacustrine shale oil resources are abundant in many petroliferous basins in China. The shale oil formations are characterized by low API gravity, high viscosity, poor mobility, high clay content, low brittleness and etc.
Zhijun Jin, Xinping Liang, Zhenrui Bai
doaj   +1 more source

Oxygen-enriched combustion mechanism of lignite

open access: yesThermal Science, 2020
In this work, thermogravimetric experiments were carried out in a thermogravi-metric analyzer under O2/N2 atmosphere with an oxygen content ranging from 21 vol.% to 70 vol.%. Malek method combined with iso-conversional method and non-isothermal method was employed to determine the burning dynamical function of lignite in high temperature ...
Xiangyun Chen   +2 more
openaire   +2 more sources

Fracture prediction approach for oil-bearing reservoirs based on AVAZ attributes in an orthorhombic medium

open access: yesPetroleum Science, 2018
Fracture systems in nature are complicated. Normally vertical fractures develop in an isotropic background. However, the presence of horizontal fine layering or horizontal fractures in reservoirs makes the vertical fractures develop in a VTI (a ...
Yu-Wei Liu   +4 more
doaj   +1 more source

Nutrient enrichment affects the mechanical resistance of aquatic plants [PDF]

open access: yesJournal of Experimental Botany, 2012
For many plant species, nutrient availability induces important anatomical responses, particularly the production of low-density tissues to the detriment of supporting tissues. Due to the contrasting biomechanical properties of plant tissues, these anatomical responses may induce important modifications in the biomechanical properties of plant organs ...
Lamberti-Raverot, Barbara   +1 more
openaire   +2 more sources

Fracture Identification of Deep Dolomite Reservoir Based on R/S-FD Analysis: A Case Study of the Cambrian Sinian Reservoirs in the Sandaoqiao Gas Field, Northern Tarim Basin

open access: yesFrontiers in Earth Science, 2022
The pre-Mesozoic Sandaoqiao gas field, northern Tarim Basin, Western China, hosts a typical deep fractured dolomite reservoir. Taking this area as an example, this study carried out identification research on the fracture development section of the ...
Qingxiu Meng   +15 more
doaj   +1 more source

Shared mechanism underlying unembedded and embedded enrichments: evidence from enrichment priming

open access: yesZAS Papers in Linguistics, 2018
In this paper, we use a priming paradigm to explore the mechanisms underlyingunembedded and embedded scalar enrichments. In particular, the aim is to see if localpragmatic enrichment could be a shared mechanism, involved in both. The two experimentspresented adopt Bott & Chemla's (2016) enrichment priming paradigm and test whetherunembedded and ...
Sun, Chao, Breheny, Richard
openaire   +4 more sources

Structural attributes, evolution and petroleum geological significances of the Tongnan negative structure in the central Sichuan Basin, SW China

open access: yesPetroleum Exploration and Development, 2023
The Tongnan secondary negative structure in central Sichuan Basin has controls and influences on the structural framework and petroleum geological conditions in the Gaoshiti-Moxi area.
Fanglei TIAN   +8 more
doaj   +1 more source

Geochemical characteristics and organic matter accumulation of Late Ordovician shale in the Upper Yangtze Platform, South China

open access: yesEnergy Reports, 2021
The Ordovician shale (Wufeng Formation) in the Upper Yangtze Platform is now considered a successful development interval, independent of the Longmaxi Formation.
Zhaodong Xi, Shuheng Tang
doaj   +1 more source

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