scholarly journals Regional Distribution Pattern and Geo-historical Transition of In-situ Stress Fields in the Korean Peninsula

2013 ◽  
Vol 23 (6) ◽  
pp. 457-469 ◽  
Author(s):  
Joong-Ho Synn ◽  
Chan Park ◽  
Byung-Joo Lee
Keyword(s):  
Distribution Pattern ◽  
Korean Peninsula ◽  
Regional Distribution ◽  
In Situ Stress ◽  
Stress Fields ◽  
Regional Distribution Pattern ◽  
Historical Transition

scholarly journals MAIN FACTORS THAT CONTROL THE DISTRIBUTION OF THE BASIC TYPES OF SECONDARY CHANGES OF RESERVOIR ROCKS

2017 ◽  
pp. 44-47
Author(s):  
A. V. Podnebesnykh ◽  
A. R. Khafizov
Keyword(s):  
Distribution Pattern ◽  
Western Siberia ◽  
Oil And Gas ◽  
Pore Space ◽  
Regional Distribution ◽  
Geological Exploration ◽  
Reservoir Rocks ◽  
Oil And Gas Resources ◽  
Main Factors ◽  
Regional Distribution Pattern

Secondary changes in reservoir rocks in the territory of Western Siberia have a regional distribution pattern, and the amount of oil and gas resources, that are in these zones, reaches 30 % of their total number. Part of the objects where the secondary changes are most clearly manifested, has not yet been introduced into the development, what requires a more detailed approach to planning and conducting geological exploration work in perspective areas, where pore space is modified by secondary processes. In this work the main factors that control the distribution of the main types of secondary changes in reservoir rocks were identified: lithofacies, chemical and tectonic.

scholarly journals Stacking of InAs/InP(001) quantum wires studied by in situ stress measurements: Role of inhomogeneous stress fields

2004 ◽  
Vol 84 (23) ◽  
pp. 4723-4725 ◽  
Author(s):  
David Fuster ◽  
Marı́a Ujué González ◽  
Luisa González ◽  
Yolanda González ◽  
Teresa Ben ◽  
...  
Keyword(s):  
Quantum Wires ◽  
In Situ Stress ◽  
Stress Fields ◽  
Stress Measurements ◽  
In Situ Stress Measurements

scholarly journals Genetic variation, phylogenetic relationship and spatial distribution of ‘Candidatus Phytoplasma ulmi’ strains in Germany

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
B. Schneider ◽  
B. Hüttel ◽  
C. Zübert ◽  
M. Kube
Keyword(s):  
Phylogenetic Analysis ◽  
Genetic Variation ◽  
Spatial Distribution ◽  
Genetic Variability ◽  
Distribution Pattern ◽  
Phylogenetic Relationship ◽  
Regional Distribution ◽  
The Other ◽  
Flavescence Dorée ◽  
Regional Distribution Pattern

AbstractA recent survey in Germany revealed the wide presence of ‘Candidatus Phytoplasma ulmi’ in native elm stands. Accessions were studied for their genetic variability and phylogenetic relationship based on the conserved groEL and the variable imp gene. While the groEL sequences revealed a high intraspecific homology of more than 99%, the homology of the imp gene dropped to 71% between distantly related sequences. Twenty-nine groEL and 74 imp genotypes were distinguished based on polymorphic sites. Phylogenetic analysis of the groEL gene clustered all ‘Ca. P. ulmi’ strains and separated them from related phytoplasmas of the 16SrV group. The inferred phylogeny of the imp gene resulted in a different tree topology and separated the ‘Ca. P. ulmi’ genotypes into two clusters, one closely related to the flavescence dorée phytoplasma strain FD-D (16SrV-D), the other affiliated with the flavescence dorée phytoplasma strains FD-C and FD70 and the alder yellows phytoplasma (16SrV-C). In both phylograms, ‘Ca. P. ulmi’ genotypes from Scots elm trees formed a coherent cluster, while genotypes from European white elms and field elms grouped less strictly. The regional distribution pattern was congruent for some of the groEL and imp genotypes, but a strict linkage for all genotypes was not apparent.

scholarly journals Finite Element Modelling of Coupled Fluid-Flow and Geomechanical Aspects for the Sustainable Exploitation of Reservoirs: The Case Study of the Cavone Reservoir

Geosciences ◽  
2019 ◽  
Vol 9 (5) ◽  
pp. 213
Author(s):  
Elena Benvenuti ◽  
Giulia Maurillo
Keyword(s):  
Finite Element ◽  
Fluid Flow ◽  
Computational Models ◽  
In Situ Stress ◽  
Stress Fields ◽  
Flow Equations ◽  
Coupled Problem ◽  
In Situ Stresses

The study of the seismogenic mechanical effects induced by oil & gas activities is a socially impacting issue of environmental engineering as well as a challenging task in computational geomechanics. It requires the solution of a coupled problem governed by poroelastic and fluid flow equations in a faulted domain in the presence of in situ stress fields. As a viable alternative to state-of-the-art academical computational models, the present study contributes a simplified methodology based on a commercial Finite Element multiphysics software. The focus is on the evaluation of the link between the oil & gas activities of the Cavone oilfield reservoir, located in North Italy and adjacent to the Mirandola fault, and the recent seismic sequence that struck Emilia in May 2012. An operational coupled fluid-geomechanical procedure is developed where the Cavone reservoir is subjected to the typical in situ stresses, and the nearby Mirandola fault is modelled as an impervious thin layer.

scholarly journals Trends and Regional Distribution Pattern of Female Lung Cancer — China, 1992–2016

2020 ◽  
Vol 2 (32) ◽  
pp. 614-618
Author(s):  
Xue Ni ◽  
◽  
Bei Zhang ◽  
Ning Xu ◽  
Xinying Zeng ◽  
...  
Keyword(s):  
Lung Cancer ◽  
Distribution Pattern ◽  
Regional Distribution ◽  
Regional Distribution Pattern ◽  
Female Lung Cancer
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