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Competitiveness and Advantages of Camelina sativa on the Market of Oil Crops

Hryhoriv Yaroslava, Lyshenko Margarita, Butenko Andrii, Nechyporenko Valentyna, Makarova Viktoriia, Mikulina Maryna, Bahorka Mariia, Tymchuk Dmytro S., Samoshkina Iryna, Torianyk Inna

Ecological Engineering & Environmental Technology

2023

Vol. 24, iss. 4

97--103

The article presents the question of the effect of the effectiveness of various elements of cultivation technologies on the competitiveness of Camelina sativa and the profitability of its cultivation on acidic, low–fertility sod-podzolic soils. Fertilizers are one of the fast-acting and effective factors in increasing the yield of Camelina sativa. It was established that introduction of mineral fertilizers had a significant impact on competitiveness of Camelina sativa seeds. Dependence of productivity elements and yielding capacity on crops has been determined. It was established that spring cruciferous crops had different seed productivity. According to the results of conducted research, it was found that the highest seed yielding capacity among spring cruciferous crops had spring Brassica napus L., but the oil content in Camelina sativa seeds was 46.53%, which is 4.08% more than in Brassica napus L. Therefore, oil outcome from the yield of Brassica napus L. and Camelina sativa was almost the same.

S-modeS-model for project cost management in value engineering for construction companies

Yang Yang, Xiao Wanxin, Lyshenko Margarita, Zhang Yang

Bulletin of the Polish Academy of Sciences. Technical Sciences

2023

Vol. 71, nr 6

art. no. e146617

Today’s fast-changing environment for construction companies requires rapid responses and adaptation of their projects. Despite the multitude of tools applied for project cost management in engineering and construction companies, there is a need to form comprehensive solutions. The purpose of the study is to form a methodological approach to project cost management in the field of engineering construction based on alternative models to diagnose the development, assessment and selection of functional areas and content of cost management in the construction project, which allows one to increase adaptability and flexibility in the process of its implementation. The basis of research methodology is modeling, which allows one to adjust the economic and financial flows based on three S-curves, one for each component of the total cost of the work: direct costs, indirect costs and reserves. These curves include the direct cost curve for the main purchasing packages as well. This brings financial flows closer to reality because it is possible to adjust the S-curves according to the behavior of each subsystem. The contribution of the study is the proposed approach of integrating concepts related to the coordination and development of project design and production management (lean construction), forming a “3D model of management”, in a broad and comprehensive management system. It assumes a comprehensive and complete way to manage civil engineering projects. The proposed methodological approach can make a significant contribution to the preparation of forecasts and estimates by planners and controllers in the context of construction projects.