The article addresses the efficiency of construction holding companies that operate in the housing market of oneRussian region. The main trends in the development of construction holding companies in ...the Penza region areoutlined within the framework of the Strategy for the social and economic development of the Penza region through2035. The co-authors analyze the principal characteristics of Termodom, a Penza-based construction holdingcompany. In particular, they explore the implementation of its market strategy, the cyclical nature of the housingmarket development, cycles of construction project development and implementation, and real estate sales overthe period exceeding the last five years. Research methods include theoretical analysis and empirical researchsuch as statistical data analysis, as well as data description and grouping. The co-authors have studied workson the operation of construction enterprises, research articles, monographs, electronic resources, and legal acts.Research methods, employed by the co-authors, include description, comparison, and classification. The coauthorsuse practical approaches to the monitoring and analysis of the activities performed by various constructionholding companies with a special focus on the milestones of their strategic development and with regard forthe factors of internal and external environments. This approach has enabled the co-author to project the mainpatterns of future sustainable development of these enterprises and the construction industry as a whole.It is necessary to develop a system of legislative, regulatory and economic standards to efficiently solve the problemof unfinished construction projects, to switch over to innovative technologies and implement other innovations andproper development strategies with a focus on investments, innovations, internal and external market potential. Theproper analysis of factors of external and internal environments is a must for the successful attainment of theseobjectives.
The production of high quality wastewater after treatment plants using a membrane bioreactor (MBR) probably requires less control than traditional processes of activated sludge. However, the use of ...MBR leads to additional problems associated with the activated sludge filtration, the formation of a sediment layer on the surface of the membrane and membrane fouling. Operation engineers require simple tools for controlling and monitoring the operation of treatment plants that can provide timely information about the biological state of the activated sludge and the filterability of the waste fluid, as well as the risks of membrane contamination. To this end, effective means of monitoring MBR and methods for determining biological activity are considered. For a broader characterization of the wastewater composition, the use of total nitrogen and total carbon analyzers is considered, which have significant advantages over the analysis of chemical and biological oxygen consumption (COD, BOD).These tools can be used regularly to ensure timely intervention and more stable monitoring of the operation of MBR systems.
A rule extraction method for thermal power unit operation optimization which based on data mining technology is proposed in this paper. Data mining technology is employed to analyze history data ...stored in real-time/history database of the unit. Stability index, economic index, environmental index and synthetic index are constructed to evaluate the performance of current operating condition. Through comparison analysis on similar operating condition, the best operating parameters and operating mode can be found out at the current condition. Accompanying with data accumulation proceeding in database, nonlinear static model between the unit operation performance index and controllable parameters is drawn over all operating conditions. Effectiveness of this method is illustrated by a practical operation optimization project, in which the realization scheme of operation guidance is also given out.
PDF
