Results 31 to 40 of about 3,769,454 (250)

Comparing Two Methods of Neural Networks to Evaluate Dead Oil Viscosity [PDF]

Iranian Journal of Oil & Gas Science and Technology, 2018
Reservoir characterization and asset management require comprehensive information about formation fluids. In fact, it is not possible to find accurate solutions to many petroleum engineering problems without having accurate pressure-volume-temperature ...
Meysam Dabiri-Atashbeyk, Mehdi Koolivand-salooki, Morteza Esfandyari, Mohsen Koulivand   +3 more
doaj   +1 more source

Rheumatoid Arthritis and Coronary Artery Calcium Progression: A Case Cohort Analysis From ELSA‐Brasil

Arthritis Care &Research, EarlyView.
Objective To investigate the association between rheumatoid arthritis (RA) and coronary artery calcium (CAC) prevalence, incidence, and progression over four years in adults without prior cardiovascular disease. Methods A case‐cohort study within the Brazilian Longitudinal Study of Adult Health (ELSA‐Brasil) included 585 participants (86 patients with ...
Patrícia Fonseca Estrada, Marcos Rafael N. Cavalcante, Itamar de Souza Santos, Márcio S. Bittencourt, Vandrize Meneghini, Paulo A. Lotufo, Alessandra C. Goulart, Isabela M. Bensenor   +7 more
wiley   +1 more source

László Podolszki, PhD in Technical Sciences

Kartografija i Geoinformacije, 2015
László Podolszki defended his doctoral thesis Stereoscopic analysis of landslides and landslide susceptibility on the southern slopes of the Medvednica Mt.
Snježana Mihalić Arbanas
doaj  

Research on the evolutionary control of unsafe behavior of construction personnel based on multi-field coupled-homogeneous analysis model.

PLoS ONE
Unsafe behavior among construction personnel poses significant risks in petroleum engineering construction projects. This study addresses this issue through the application of a multi-field coupled homogeneous analysis model.
Haoran Zhao, Changfeng Wang, Qiushuang Zheng, Xuefeng Xia, Yanmin Ouyang   +4 more
doaj   +1 more source

Monitoring Global Science of Petroleum Engineering Based on Co-citation Analysis Networks

International Journal of Information Science and Management, 2022
The development of purposeful and principled programs meant to improve the scientific level of countries requires the assessment and measurement of research, and oil industry research is no exception. Therefore, examining the quantitative and qualitative
Elmira Janavi, Maryam Emami
doaj  

Analysis of deep learning neural network combined with experiments to develop predictive models for a propane vertical jet fire

Heliyon, 2020
Fires are important responsible factors to cause catastrophic events in the process industries, whose consequences usually initiate domino effects. The artificial neural network has been shown to be one of the rapid methods to simulate processes in the ...
Hossein Mashhadimoslem, Ahad Ghaemi, Adriana Palacios   +2 more
doaj   +1 more source

Experimental Evaluation of 100Cr6 Steel Microindented Surfaces Under Lubricated Nonconformal Point Contacts

Advanced Engineering Materials, EarlyView.
The tribological behavior of 100Cr6 steel spheres textured via Vickers microindentation is evaluated under lubricated sliding by varying both dimple size and density. Fine and dense textures significantly reduce friction across all lubrication regimes, while large dimples increase it.
Farideh Davoodi, Pasquale Guglielmi, Gianfranco Palumbo, Giuseppe Carbone   +3 more
wiley   +1 more source

Zein‐Based Adhesives: Sustainable Extraction and Application in Bioadhesive Technologies

Advanced Engineering Materials, EarlyView.
Zein is extracted from corn gluten meal using a simple and scalable process with high yield (~90%). The resulting protein is applied in bioadhesives modified with Ca2+ and Fe3+ ions, exhibiting substrate‐dependent adhesion. The findings demonstrate competitive bonding performance and highlight the role of ionic interactions in tuning adhesion ...
Paula Bertolino Sanvezzo, Daniela Winsley Valereto Friozi, Vinícius de Oliveira, Marcia Cristina Branciforti   +3 more
wiley   +1 more source

Karl Popper and the Mechanisms of Hydrogen Embrittlement

Advanced Engineering Materials, EarlyView.
Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
wiley   +1 more source

Viscosity-temperature effects of petroleum-contaminated soil under synergistic solidification

Yantu gongcheng xuebao
Temperature affects the occurrence form of petroleum contaminants in the soil, which is a key factor causing the structural instability and secondary environmental contamination.
LI Min 1, 2 , YU Hemiao 1, ZHAO Moyan 1, ZHANG Xuechao 3, LU Tong 1, WU Haiming 1
doaj   +1 more source