Using 3D Modeling to Promote Railway Heritage. The Railway Station of Curtea De Argeş Municipality as Case Study

The characteristics of the industrial heritage (antiquity, architectural, cultural, technological value) determined its inscription in the category of historical monuments. In recent years, non-invasive digital technologies have been used in studies focused on documenting, digitizing, preserving elements of industrial heritage. Also, another objective of digitizing the industrial heritage is to facilitate its promotion as a cultural resource among the general public. The purpose of this study is to promote the railway station of Curtea de Argeş through non-invasive technology. The analyzed industrial monument represents a symbolic building of the neo-Romanian architectural style. The building is also associated with a remarkable historical value: the railway station was also used by the Romanian royal family. Based on the use of terrestrial photogrammetry (versatile GNSS RTK GS18 I sensor) and aerial (photogrammetric flight), the authors created the 3D model of the station, obtaining a high-resolution modeling. The results of this study reflect the usefulness of modern technology for documenting, 3D modeling and promoting an industrial monument inscribed on the list of national cultural heritage. The accuracy and optimal performance of the measurements made, using GNSS technology and aerial photogrammetry, allowed highlighting the remarkable architectural and volumetric characteristics of the railway station of Curtea de Argeş Municipality.

Citations or dollars? Early signals of a firm's research success

Scientific and technological progress is largely driven by firms in many domains, including artificial intelligence and vaccine development. However, we do not know yet whether the success of firms’ research activities exhibits dynamic regularities and some degree of predictability. By inspecting the research lifecycles of 7,440 publicly listed firms, we find that the economic value of a firm’s early patents is an accurate predictor of various dimensions of a firm’s future research success. At the same time, a smaller set of future top-performers do not generate early patents of high economic value, but they are detectable via the technological value of their early patents. Importantly, the observed predictability cannot be explained by a cumulative advantage mechanism, and the observed heterogeneity of the firms’ temporal success patterns markedly differs from patterns previously observed for individuals’ research careers. Our results uncover the dynamical regularities of the research success of firms, and they could inform managerial strategies as well as policies to promote corporate development and accelerate human progress.

Value management in the Economy 5.0

The article considers the value management concept in the context of the changing epochs of postmodernism and metamodernism, as well as the challenges of the Economy 5.0. The main elements of the concept of value management and their relationship with the ideas of postmodernism and metamodernism have been revealed. The strengths and weaknesses of value management in modern companies have been determined. The role of institutions of the micro-, mesoand macrolevels in changing the values of economic activity has been recognized. The authors concluded that there is a cumulative, accumulative relationship between technological, value, institutional and economic changes. The potential of value management of organizations in the Economy 5.0 in the context of the era of metamodernism has been clarified.

Study of the dynamics for gas accumulation in the annulus of production wells

Accumulation of associated petroleum gas in the annulus is one of the negative factors that impede the intensification of mechanized oil production. An increase in annular gas pressure causes growth of bottomhole pressure, a decrease in back pressure to the formation and the inflow of formation fluid. In addition, accumulation of gas in the annulus leads to displacement and a decrease in the liquid level above the submersible pump. Insufficient level of the pump submersion (rod or electric submersible) causes a number of complications in the operation of mechanized production units associated with overheating of the elements in pumping units. Therefore, the development of technologies for optimizing the gas pressure in the annulus is relevant. Method for calculating the intensity of gas pressure increase in the annulus of production wells operated by submersible pumps has been developed. Analytical dependence for calculating the time interval of gas accumulation in the annulus, during which the dynamic level decreases to the pump intake, is obtained. This value can be used to estimate the frequency of gas withdrawal from the annulus using compressors. It has been found that the rate of increase in annular gas pressure in time increases non-linearly with a rise in the gas-oil ratio and a decrease in water cut, and also linearly increases with a rise in liquid flow rate. Influence of the operating (gas-oil ratio) and technological (value of the gas pressure maintained in the annulus) factors on the flow rate of the suspended reciprocating compressor driven by the beam engine, designed for forced withdrawal and redirection of the annular gas into the flow line of the well is analyzed.

The Characteristics of Quark Cheese Made from Buttermilk during Refrigerated Storage

The dairy industry releases huge amounts of by-products. One of them is buttermilk, obtained during butter production. This by-product is characterized by high nutritional and technological value and is finding more and more applications in food production. This study aimed to produce and analyze the characteristics of quark cheese obtained entirely from buttermilk during 3-week refrigerated (4 ± 1 °C) storage. Four kinds of sour buttermilk were used: two from industrial butter production, and another two from butter production at laboratory scale. Laboratory buttermilk differs in the kind of starter culture used in the production. The evaluation of cheese quality properties included physicochemical analyses, texture measurement, and sensory assessment. The results showed that the kind of buttermilk used in production influences the acidity, total solids, textural characteristics, and fat content of the obtained quark cheeses. All obtained cheeses had very high sensory quality throughout the storage period. The study indicates that buttermilk may be successfully used as a substitution for milk in quark cheese production.

Earth-Centered Communication Technology: Lichen as a Model Interface

Earth-Centered Communication Technology (Earth Tech Net) is a framework that aims to shift technological value systems away from the normative human and toward planetary-aware ecological inclusivity. The framework grounds computational media as part of ecological evolutionary forces. It also generates experimental artworks that can reveal the current limitations of technological value systems and how they shape human behavior at different scales, as well as create models of an ecologically focused paradigm of technology, for example, an augmented-reality (AR) lichen interface made to model a hypothetical Earth-communication device that connects different species together.

Breeding of industrial hemp with a high content of cannabigerol by the case of ‘Vik 2020’ cultivar

To create an industrial hemp variety of the Central European ecological and geographical type with a high cannabigerol content and universal application. Methods. Breeding (self-pollination, creation of artificial populations, selection), field, biochemical (thin-layer and gas-liquid chromatography of cannabinoid compounds), instrumental and technological assessment of fibre quality, and statistical methods. Results. Variety ‘Vik 2020’ was obtained as a result of creation of artificial populations. The plants are characterized by higher content of cannabigerol (1.034 ± 0.0323%), and almost zero of other secondary metabolites, such as cannabidivarin, cannabidiol, cannabichromene and psychotropic tetrahydrocannabinol (0.003 ± 0.0011; 0.018 ± 0.0080; 0.012 ± 0.0027, and 0.005 ± 0.0012%, respectively). The t rait of cannabigerol content is quite stable within the population and is not correlated with the trait of tetrahydrocannabinol content (r = -0.23). TLC showed that cannabigerol accumulated mainly in the form of cannabigerolic acid and to a lesser extent as a neutral compound, which is consistent with the theory that this substance is a precursor for the synthesis of other cannabinoids. According to the results of the competitive variety test, when growing to obtain fibre and seeds, the variety features short height, specifically significantly lower total (206.4 cm) and technical stem length (135.6 cm) compared to the standard variety, significantly higher inflorescence length (70.8 cm), which determine the formation of the significant yield of biomass suitable for pharmaceutical use and high seed yield (0.98 t/ha). The yield of total fibre was the same as in the standard variety (29.0%), but its quality and technological value for primary processing were higher. The variety had a homogeneous sex structure, resistance to bioltic and abiotic environmental factors. Plants reached biological maturity in 116 days (BBCH 89). This cultivar is recommended for obtaining seeds, quality fiber and potentially cannabigerol (on condition of changes in legislation). Conclusions. The efficiency of using self-pollinating lines in breeding with their subsequent combining into a synthetic population and improving selection was proved by the case of a new variety of industrial hemp ‘Vik 2020’, characterized by an increased content of cannabigerol and the absence of psychotropic properties

Exploring the Factors Affecting Consumer Purchase Behavior during COVID-19: A Case Study of Techno Products in Dhaka City

Purpose: This paper proposes an exhaustive examination of investigating the variables influencing shopper/consumers’ buy conduct during COVID-19 on techno items in Dhaka city. This study intends to investigate the components emerging from vulnerability like Covid pandemic on the customer buy conduct of techno items in Dhaka city. Methodology: 226 respondents were surveyed using a 19-items structured questionnaire. Exploratory Factor Analysis technique was used to identify the significant factors. Findings: Results demonstrated that five factors, namely, economic fluctuation and technological value chain, e-commerce wave, digital workplace/force, crisis attitude, motivations of changing consumer behavior were found significantly responsible for influencing shopper/consumers’ buy conduct during COVID-19 on techno items in Dhaka city.

Analyzing the efficiency of the national project "Labor Productivity and Support to Employment" implementation

Subject. The article investigates approaches to labor productivity within the national project "Labor Productivity and Support to Employment". Objectives. Our aim is to identify the most efficient approaches to shaping a strategy to implement the national project "Labor Productivity and Support to Employment". Methods. The hypothesis of the study rests on the assumption that high level of labor productivity in the country (region) is determined by a set of measures at the State and regional levels, as well as at the level of enterprises and organizations. Meanwhile, at the State and regional level, certain conditions for labor productivity growth should be provided, and at the enterprise and organization level, it is important to develop and implement measures to create highly efficient production and effectively use various resources, including labor. Results. We performed an analysis and developed recommendations aimed at adjusting the national project "Labor Productivity and Support to Employment" to improve its feasibility and efficiency of implementation. Conclusions. To improve the effectiveness of national projects implementation, it is crucial to have an integrated and consistent strategy. The local nature of setting goals in individual projects prevents from achieving the synergistic effect, which is required for meeting the ambitious objectives and enhancing the efficiency of budgetary funds utilization. The problem of productivity growth cannot be solved in isolation from the problems of industries’ development and through creation of modern technological value chains.