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An experimental convective heat transfer study is carried out to explore if the local heat transfer coefficient into an oval-trench dimple can outnumber to the well-known heat transfer on the smooth surface. Bismuth-based gradient heat flux sensors were used on a single oval-trench dimple mounted the surface. The experiments were performed in a wind tunnel in the Reynolds number range from 5·103 to 3·104. The option is considered when the angle of inclination the dimple’ longitudinal axis to the free-stream velocity vector is 45°, and the relative depth is 0.25. Under experimental conditions, a constant temperature Tw is maintained on the heat transfer surface. The distributions of the local heat transfer coefficient are obtained. For characteristic transverse cross-section, the double increase in heat transfer in compared to the smooth surface. The heat transfer enhancement’ mechanism associated with the separated flow and vortex formation in the dimple is discussed.

In modern science, the study of digitalization and digital transformation in spatial socio-economic systems, among which urban and regional agglomerations are the most complex ones, plays a special role. The paper considers scientific publications devoted to the problems of smart city development. Russian practices of smart city development are investigated in comparison with the world leaders in urban space digitalization. Based on the analysis of the achieved level of digital transformation of urban space and development of “smart city” technologies in the cities-leaders in the development of “smart” technologies in the subjects of the Russian Federation in 2021, the issue of scaling promising technologies and successful practices from urban to the level of regional space is being considered. The prospects of integrating the smart city as a point of digital development of regional space into the system of inter-regional interactions of digital regions are disclosed.

Translation of the book “Here we stand. Who are the Lutherans?” by Hermann Sasse appeared twenty years ago and was thought, as follows from its title, to clarify the features of confessional identity for Russian Lutherans. However, the author argues that the title is absolutely misleading and can cause perplexity of a neophyte reader. The translation made by K. Komarov was highly inaccurate and fool of annoying errors and misspellings, while the interpreter itself as well as the editor demonstrated complete ignorance of historical and theological realities. H. Sasse’s book appeared immediately after Nazis coming to power and their attempts to create a unified Protestant church under their leadership. Among Nazis opponents were many Christian denominations — Catholics, Lutherans and Calvinists. H. Sasse himself found a middle path lashing both Nazis and Christian-antifascists. This allowed him to speak out openly on issues of the Church conversions, keeping loyalty to the regime and pursuing a career of lecturer. Thus, reading this book without understanding the context of its creation, which is partially reflected in the review, can hardly contribute to the understanding of the features of the Lutheran beliefs. The author gives the brief amount of the historical background and analyses some errors, made by translators.

The problems of creation of an automated system for obtaining, processing and storing experimental information on the physical and mechanical properties of structural materials, building materials and various soil media used to provide information support for automated computing systems for analysis of strength and design of structures are discussed. The developed database is focused on studying the effects of the behavior of structural materials under highly parametric influences of force, temperature and other physical fields, as well as on equipping and experimental substantiation of mathematical models describing these effects. In the proposed variant, the database is implemented as a client-server application executed on the Microsoft.Net Framework using a powerful database management system MS SQL Server. The content of the created bank is made up of sections of primary information, material properties and material models. In order to automate the processing of data at all stages of information conversion, a special “Desktop” subsystem is included in the bank, which allows aggregating data obtained from several different experiments, correcting the selected data, processing and converting it. Processing and transformation of data in the subsystem “Desktop” can be carried out either in manual mode or on the basis of special algorithms using appropriate mathematical methods.