Enhanced Oil Recovery in Terrigenous Oil Fields Using Low-salt Water
Al-Obaidi S.H.1, Hofmann M.2, Khalaf F.H.3
1,2 Department of Petroleum Engineering, Mining University (Russia)
3 Department of Petroleum Engineering, Knowledge University, Erbil (Iraq)
https://doi.org/10.53656/nat2023-2.01
Abstract. In order to improve the development of reserves, optimal technologies must be introduced to meet the regular increase in demand for hydrocarbons. Injection of low-salinity water is one of these technologies that have been shown to be effective in solving this problem…
Easy Experiment for Difficult Concepts. Construction of Calibration Curve and Iodometry
Nasko Stamenov
“Acad. Lyubomir Chakalov” National High School of Mathematics and Science
https://doi.org/10.53656/nat2023-2.02
Abstract. Within the 4th module of chemistry in the 2nd high school level it is expected from students to get familiar with different types of titrations, to understand chemical reactions in volumetric analysis and understand and analyze the information gathered through the experiments...
Formative Science Assessment in an E-Education Environment
Neli Dimitrova
Sofia University
https://doi.org/10.53656/nat2023-2.03
Abstract. The article presents theoretical aspects of formative assessment in the process of learning science in secondary school in the context of different educational environments...
Comparative Analysis of Mental Models and Artificial Intelligence
Plamen Chergarov
University of Sofia
https://doi.org/10.53656/nat2023-2.04
Abstract. Mental models are a representation of the external world. They are a hypothetical example of relevant elements to the knowing subject, that are configured by analogy to the world`s being...
A Pioneer of Nature Conservation, a Notable Scientist and Popularizer of Bulgarian Science (On the Occasion of the 100th Anniversary of the Birth of Assoc. Prof. Nikolay Boev)
1. Vasil Golemanski 2. Zlatozar Boev
1 Institute of Biodiversity and Ecosystem Researchs – BAS
2 National Museum of Natural History
Bulgarian Academy of Sciences
https://doi.org/10.53656/nat2023-2.05
Abstract. The most important moments of the life of the noted ornithologist and environmentalist Nikolay Boev are presented...
