Search Results - "Llanos, Sebastian"
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Polymers for EOR Application in High Temperature and High Viscosity Oils: Rock–Fluid Behavior
Published in Energies (Basel) (01-11-2020)“…Viscosity losses and high degradation factors have a drastic impact over hydrolyzed polyacrylamides (HPAM) currently injected, impacting the oil recovery…”
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Effect of a SILICA/HPAM Nanohybrid on Heavy Oil Recovery and Treatment: Experimental and Simulation Study
Published in ACS omega (17-09-2024)“…The addition of nanoparticles has been presented as an alternative approach to counteract the degradation of polymeric solutions for enhanced oil recovery. In…”
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3
Carboxymethyl Scleroglucan Synthesized via O -Alkylation Reaction with Different Degrees of Substitution: Rheology and Thermal Stability
Published in Polymers (10-01-2024)“…This paper presents the methodology for synthesizing and characterizing two carboxymethyl EOR-grade Scleroglucans (CMS-A and CMS-B). An -Alkylation reaction…”
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4
Active surveillance of pathogens from ticks collected in New York State suburban parks and schoolyards
Published in Zoonoses and public health (01-09-2020)“…Schoolyards and suburban parks are two environments where active tick surveillance may inform local management approaches. Even in a state such as New York…”
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5
Effect of the Asphaltene Oxidation Process on the Formation of Emulsions of Water in Oil (W/O) Model Solutions
Published in Energies (Basel) (01-04-2018)“…In this paper, the formation of water in oil (W/O) model solution emulsions using untreated and oxidized asphaltenes as emulsifiers was evaluated. Emulsions…”
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Experimental Investigation of the Viscosity and Stability of Scleroglucan-Based Nanofluids for Enhanced Oil Recovery
Published in Nanomaterials (Basel, Switzerland) (01-01-2024)“…Biopolymers emerge as promising candidates for enhanced oil recovery (EOR) applications due to their molecular structures, which exhibit better stability than…”
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Understanding Antibiotic Resistance as a Perceived Threat towards Dairy Cattle through Beliefs and Practices: A Survey-Based Study of Dairy Farmers
Published in Antibiotics (Basel) (25-07-2022)“…Antibiotic use is an important component in dairy herd management both to treat bacterial diseases and to maximize animal welfare. However, there is concern…”
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Heavy Oil and High-Temperature Polymer EOR Applications
Published in C T & F : ciencia, tecnología y futuro (17-12-2020)“…Polymer flooding represents the most common chemical enhanced oil recovery (CEOR) method used at commercial scale. In this process, the polymeric solutions…”
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Rodents as potential reservoirs for Borrelia spp. in northern Chile
Published in Revista brasileira de parasitologia veterinaria (01-01-2020)“…Abstract Small mammals play an essential role in the transmission and maintenance cycles of Borrelia spirochetes. In Chile, recent studies have characterized…”
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Flow Behavior through Porous Media and Displacement Performance of a SILICA/PAM Nanohybrid: Experimental and Numerical Simulation Study
Published in ACS omega (20-02-2024)“…Nanoparticles (NPs) have been proposed as additives to improve the rheological properties of polymer solutions and reduce mechanical degradation. This study…”
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Parasites of the Southern silvery grebe Podiceps occipitalis (Aves, Podicipedidae) in Chile
Published in Revista brasileira de parasitologia veterinaria (01-07-2017)“…A total of 97 southern silvery grebes (Podiceps occipitalis), which died as the result of an oil spill on the coast of central Chile, were examined for ecto-…”
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12
Oil Displacement Efficiency of a Silica/HPAM Nanohybrid
Published in Energy & fuels (19-08-2021)“…In this study, the surface of silica nanoparticles (NPs) synthesized using the Stöber method was modified with 3-aminopropyltriethoxysilane and hydrolyzed…”
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13
How does public perception of antibiotic use on dairy farms contribute to self‐reported purchasing of organic?
Published in Journal of food science (01-05-2021)“…The United States regulates the use of antibiotics in agricultural settings to address the global antibiotic resistance problem. Conventional dairy cows…”
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Survey of perceptions and attitudes of an international group of veterinarians regarding antibiotic use and resistance on dairy cattle farms
Published in Preventive veterinary medicine (01-03-2021)“…•Veterinarians perceived that nearly half of their colleagues overprescribe antibiotics.•Mastitis and diarrhea were identified as major areas to improve…”
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Effect of Sodium Oleate Surfactant Concentration Grafted onto SiO2 Nanoparticles in Polymer Flooding Processes
Published in ACS omega (31-12-2018)“…The nanotechnology has been applied recently to increase the efficiency of enhanced oil recovery methods. The main objective of this study is to evaluate the…”
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Knowledge about bacterial and viral pathogens present in wild mammals in Chile: a systematic review
Published in Revista chilena de infectología (01-04-2019)“…This study organizes all available information about viral and bacterial pathogens of wild mammals in Chile. This was done in order to identify pathogens that…”
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A systematic revision of viral and bacterial pathogens of free-ranging wild birds in Chile
Published in Revista chilena de infectología (01-08-2020)“…Knowledge about pathogenic agents present in wild birds is pivotal to properly prevent transmission events that might threaten public and animal health. This…”
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Biodegradation and toxicity of scleroglucan for enhanced oil recovery
Published in C T & F : ciencia, tecnología y futuro (01-06-2022)“…Polymer flooding consists of injecting polymer-augmented water into the reservoir to control the water-oil mobility ratio, resulting in an increase in the…”
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19
Knowledge about viral and bacterial pathogens present in wild mammals in Chile: a systematic review
Published in Revista chilena de infectología (01-02-2019)“…This study organizes all available information about viral and bacterial pathogens of wild mammals in Chile. This was done in order to identify pathogens that…”
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20
Synthesis and Characterization of New Nanohybrids Based on Carboxymethyl Scleroglucan and Silica Nanoparticles
Published in Nanomaterials (Basel, Switzerland) (10-03-2024)“…In this study, two new nanohybrids (NH-A and NH-B) were synthesized through carbodiimide-assisted coupling. The reaction was performed between…”
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