Results 21 to 30 of about 1,292,580 (305)

Parameter Optimization Study of Gas Hydrate Reservoir Development Based on a Surrogate Model Assisted Particle Swarm Algorithm

open access: yesGeofluids, 2022
Using surrogate model to assist parameter optimization of oil and gas reservoir development can greatly reduce the call times of numerical simulator and accelerate the optimization process.
Le Zhang   +4 more
doaj   +1 more source

Evaluating Pore Structure of Shale Reservoirs through Pore Space Multifractal Characterization

open access: yesGeofluids, 2023
Characteristics of pore structure are crucial to oil exploration and development in shale reservoirs, but practical evaluation of shale pore structure remains a longstanding challenge.
Quanqi Dai   +9 more
doaj   +1 more source

Enriched order polytopes and enriched Hibi rings [PDF]

open access: yesEuropean Journal of Mathematics, 2020
AbstractStanley introduced two classes of lattice polytopes associated to posets, which are called the order polytope $${{\mathscr {O}}}_P$$ O P and the chain polytope $${{\mathscr {C}}}_P$$ C P
Hidefumi Ohsugi, Akiyoshi Tsuchiya
openaire   +2 more sources

Intelligent prediction and integral analysis of shale oil and gas sweet spots

open access: yesPetroleum Science, 2018
Shale reservoirs are characterized by low porosity and strong anisotropy. Conventional geophysical methods are far from perfect when it comes to the prediction of shale sweet spot locations, and even less reliable when attempting to delineate ...
Ke-Ran Qian   +3 more
doaj   +1 more source

Study on Improving Condensing Capacity of 30B Container

open access: yesJournal of Isotopes
Aiming at the insufficient condensation capacity of the 30B vessel in the late stage of receiving in the current uranium enrichment plant,a copper triangular heat dissipation rib was designed,and the heat dissipation performance of the 30B vessel in the ...
Ke OU   +9 more
doaj   +1 more source

Motivations, work-family enrichment and job satisfaction: An indirect effects model [PDF]

open access: yes, 2011
Self Determination Theory (SDT) recognises that people may experience their motivations as either coming from within themselves (autonomous) or from outside of themselves (controlled).
Haar, Jarrod, Roche, Maree
core   +1 more source

Three-Dimensional Morphology and Connectivity of Organic Pores in Shale from the Wufeng and Longmaxi Formations at the Southeast Sichuan Basin in China

open access: yesGeofluids, 2021
Organic pores play an important role in shale reservoirs. Organic pores occur where shale gas was produced and accumulated. However, there is little scientific understanding of the distribution and connectivity of organic pores.
Tao Jiang   +5 more
doaj   +1 more source

Why Diversion Is Not Enough: A Comprehensive Community-Based Model for Juvenile Detention Alternatives, Diversion, and Restorative Services Programming

open access: yesSocial Sciences
Diversionary programs in the United States juvenile justice system were designed to redirect youth from formal legal processing towards services such as treatment, community service, or counseling. Alternative to Detention (ATD) emerged as a key strategy
Denise L. Jones   +6 more
doaj   +1 more source

Evaluation of the Scottish Borders Feuerstein Instrumental Enrichment (FIE) programme [PDF]

open access: yes, 2006
In the light of decades of worldwide research that implies that the Feuerstein Instrumental Enrichment (FIE) programme has potential to enhance learning and attainment (Romney and Samuels, 2001) a pilot programme was launched in Scottish Borders Council ...
Scottish Executive (Funder)   +4 more
core   +3 more sources

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

open access: yesFEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

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