Article
Chemistry, Multidisciplinary
Kassymzhomart Ulasbek, Muhammad Rehan Hashmet, Peyman Pourafshary, Rizwan Muneer
Summary: This study investigated the effectiveness of injecting nanofluid-polymer as an enhanced oil recovery (EOR) approach. Nanoparticles were found to alter rock wettability, increase polymer viscosity, and decrease polymer retention in carbonate rock. Optimum concentrations of hydrolyzed polyacrylamide and silica nanoparticles were determined through rheology experiments and contact angle measurements. The injection of silica nanofluid followed by a nanofluid-assisted polymer solution resulted in a maximum incremental oil recovery of 26.88% in oil-wet carbonate core samples. This research has important implications for maximizing oil production from depleted high-temperature and high-salinity carbonate reservoirs.
Article
Energy & Fuels
Marvin Flatts, David Alexander, Rean Maharaj
Summary: The crude oil production in Trinidad and Tobago has been declining steadily in recent decades, presenting major economic challenges due to lower energy prices. This study optimized a field simulation model of a combined Low Salinity Polymer Gel flood to show how Enhanced Oil Recovery (EOR) can boost crude oil production, especially from heavy oil reserves and mature fields. The research found that using the polymer gel flooding method could lead to an additional 14.52% oil recovery from the Upper Forest Sands reservoirs, making it economically feasible with a payback period of two years and an internal rate of return of 63.53% at a crude oil price of US$50 per barrel.
JOURNAL OF PETROLEUM EXPLORATION AND PRODUCTION TECHNOLOGY
(2022)
Article
Multidisciplinary Sciences
Miyuki Hino, Marshall Burke
Summary: The study found that the US housing market does not fully incorporate flood risk into prices, with larger price penalties for commercial buyers and markets with higher risk awareness. Houses in flood zones in the US are currently overvalued by $43.8 billion, raising concerns about the stability of the real estate market.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Plant Sciences
Carolina Lopes Monteiro, Jose Ricardo Bonilla Brenes, Alberto Serrano-Pacheco, Jochen Hack
Summary: This study used a hydraulic model to analyze the impact of GFRMs on floods and developed a multi-criteria methodology to select suitable implementation sites. Through model evaluation, 12 suitable sites were identified, capable of providing multiple socio-ecological benefits, and some sites were implemented and evaluated. The results showed that all scenarios had varying effects on peak flow, flood volume, and inundation areas, with the combination of all measures being the most effective, reducing peak flow by 5.6%-15.3% and flood volume by 3.6%-9.9%.
URBAN FORESTRY & URBAN GREENING
(2023)
Article
Business
Will Georgic, H. Allen Klaiber
Summary: The National Flood Insurance Program is increasing flood insurance premiums to approach fiscal solvency. Research shows that higher premiums may lead to losses in home equity and net wealth for homeowners, property tax revenue shortfalls for local governments. These findings are crucial for policy discussions.
JOURNAL OF ENVIRONMENTAL ECONOMICS AND MANAGEMENT
(2022)
Article
Chemistry, Physical
Richard O. Afolabi, Gbenga F. Oluyemi, Simon Officer, Johnson O. Ugwu
Summary: A novel predictive approach was developed for quantitative mapping of various retention mechanisms associated with associative polymers. By mapping static to dynamic retention and linking retention mechanisms to polymer and reservoir properties, an accurate quantification of different retention mechanisms was achieved.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Physical
Svetlana Laishevkina, Olga Iakobson, Natalia Saprykina, Anatoly Dobrodumov, Vladimir Chelibanov, Elena Tomsik, Natalia Shevchenko
Summary: Polyelectrolyte microspheres containing a conducting polymer and an anionic polymer are studied for their electroresponsive and biotechnological applications. Understanding template formation is crucial for producing PEDOT with varied properties. The synthesis of porous polyelectrolyte microspheres using inverse suspension polymerization is investigated, focusing on the effect of the emulsifier on the microsphere structure and cross-linking. The resulting microspheres exhibit a porous structure that promotes the polymerization of EDOT throughout.
Article
Engineering, Civil
Miguel Angel Mejia-Morales, Emmanuel Mignot, Andre Paquier, Darius Sigaud, Sebastien Proust
Summary: The research found that flow depth and depth-averaged velocity in the streets surrounding the block can vary significantly when modifying block porosity, with noticeable differences in flow depth observed at openings between street and block. The number and size of horizontal secondary flow cells within the block are the most impacted flow parameters. Flow parameters are less affected when moving away from the block, and the risk to pedestrians is dependent on the block porosity value.
JOURNAL OF HYDROLOGY
(2021)
Article
Health Care Sciences & Services
Jiang Li, Xiaowei S. Yan, Durgesh Chaudhary, Venkatesh Avula, Satish Mudiganti, Hannah Husby, Shima Shahjouei, Ardavan Afshar, Walter F. Stewart, Mohammed Yeasin, Ramin Zand, Vida Abedi
Summary: Laboratory data from EHR can be used in prediction models to mitigate estimation bias and improve model performance with missingness using imputation methods. The study found that missingness in EHR laboratory variables was associated with patients' comorbidity data, and the multi-level imputation algorithm showed smaller imputation error compared to the cross-sectional method.
NPJ DIGITAL MEDICINE
(2021)
Article
Energy & Fuels
Iman Nowrouzi, Amir H. Mohammadi, Abbas Khaksar Manshad
Summary: The extracted mucilage from Chia seeds, known as Chia seeds polymer (CSP), is introduced as a natural polymer for polymer injection into oil reservoirs. It has been shown to have stable performance even at high salinity and temperature, and its viscosity can be adjusted by changing the concentration. CSP injection has proven effective in reducing water-cut well and increasing oil recovery.
Article
Environmental Sciences
J. A. Neville, R. E. Emanuel, E. G. Nichols, J. Vose
Summary: This study investigated the impact of extreme flooding from Hurricane Matthew on nitrate retention and processing in the Lumbee River in North Carolina. While nitrate-nitrogen concentrations did not significantly change after the flood, spatial variability of within-reach retention and areal uptake increased substantially post-flood. The study highlights the long-lasting effects of extreme flooding on biogeochemical processes in large rivers.
WATER RESOURCES RESEARCH
(2021)
Article
Geosciences, Multidisciplinary
Ludovic Huguet, Michael Le Bars, Renaud Deguen
Summary: Solidification of small planet and moon cores occurs in the iron snow regime, which shows strong heterogeneity in time and space. The solidification process happens in a cyclic pattern, with intense periods of crystal formation alternating with quiet periods without crystals.
GEOPHYSICAL RESEARCH LETTERS
(2023)
Article
Environmental Sciences
Andrii Butkovskyi, Yuying Jing, Hege Bergheim, Diana Lazar, Ksenia Gulyaeva, Sven Roar Odenmarck, Hans Ragnar Norli, Karolina M. Nowak, Anja Miltner, Matthias Kaestner, Trine Eggen
Summary: The study tested various filter material combinations suitable for retaining different pesticides and found that mixtures of pumice and vermiculite have high pesticide retention capacity and lower leaching potential, providing near natural treatment options in riparian strips.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Energy & Fuels
Yongsheng Liu, Jian Hou, Xulong Cao, Bei Wei, Yanfeng Ji, Huiyu Wang
Summary: This study explores the fundamental properties of thermo-sensitive microencapsulated polymer, including dispersion stability, injection ability, shear resistance and viscosity enhancement. The results show that the microencapsulated polymer has good dispersion stability, excellent shear resistance and delayed thickening property at elevated temperatures, making it a feasible and powerful technology for EOR.
Article
Astronomy & Astrophysics
M. Loewe, R. Zamora
Summary: In this article, we revisit the discussion of renormalons in the context of a scalar self-interacting lambda phi(4) theory in the presence of thermomagnetic effects. We obtain explicit analytic expressions for the evolution of residues, valid for all temperature values, in both the thermomagnetic and thermoelectric cases. The location of the poles in the Borel plane remains unchanged, but their residues depend on temperature and external field.