Russian Venture Company

We present a hybrid ML framework combining regression and classification for QoT prediction in coherent optical networks. Trained on realistic data, it enables accurate estimation and detection of inoperability causes across diverse topologies and configurations.

In the time of fast technology growth, digitalization is transforming the landscape of many businesses. However, the antecedents of digital adoption within small and medium-sized enterprises in crisis are yet not fully understood. This study’s objective is to pinpoint factors that influence entrepreneurs’ intentions to utilize digital technologies in times of COVID-19 crisis in the Russian Federation. The study is based on the theory of planned behaviour. The analytical procedures performed on the data involved logistic regression modelling. This research draws on the Russian part of the 2021 Global Entrepreneurship Monitor Database (GEM) Adult Population Survey which measures the level and nature of entrepreneurial activity in different countries. Perceived behavioural control was revealed to be a key determinant of the intention towards digital technologies’ adoption – entrepreneur’s perception of opportunities and self-efficacy positively affects their intention to adopt digital technologies during a crisis. Notably, previous experience with digital technologies had a negative impact during the crisis. Further, an individual’s age inversely affects their tendency to pursue digital entrepreneurial initiatives. The research extends the theory of planned behaviour to volatile contexts and signals how entrepreneurs can adapt to upheavals during crises through digitalization, thus advancing understanding of entrepreneurial behaviour under extremities.

During rolling of thin-walled seamless pipes at the rear ends, a defect in the form of end folds occurs, which leads to an increase in the consumption coefficient of the metal. To identify the causes of the formation of this defect, the mathematical modeling of rolling processes in the QForm VX software was carried out. The simulation results showed that the main factor in the formation of end folds at the rear ends of the pipe billets is an increased relative compression along the wall of the pipe billet in the first pass, which leads to flattening of the rear end of the pipe billet and formation of longitudinal folds. To prevent the formation of end folds, it is proposed to install an additional sleeve with a mandrel. As a result of the research, the values of relative compressions were determined, at which a defect is formed for rolling with a new mandrel installation option. It was found that with relative compression along the wall in the first passage from 30.0 %, a defect in the form of folds (“fins”) at the rear end of the pipe billet is formed. With a relative compression of the wall in the first passage up to 39.4 %, the installation of sleeves reduces the formation of “fin” defects at the rear end of the pipe billet; with a relative compression from 39.4 % to 41.8 %, its installation does not prevent the formation of these defects. The optimal distance between the mandrel of the automatic mill and the sleeve is 20–30 mm

The article deals with issues related to the research of the effectiveness of purposeful information processes. Approaches to evaluating the effectiveness of purposeful information processes based on the use of deterministic and stochastic selecting functions are proposed. The statement of the problem of achieving the guaranteed probability of the goal is considered.

The dispensing of vertical cultivation technology in greenhouses in Russia has been held back due to deficiency of a specific assortment of vegetable plants. The studies with the possible species of cultivated crops for vertical hydroponics were carried out in Omsk State Agrarian University. The growth of Beta vulgaris subsp. vulgaris is attractive for getting “baby green”. The study of the technological peculiarities of Beta vulgaris production and the compilation of a scientifically grounded crop rotation in a container-type greenhouse with vertical cultivation of crops is the goal of research work. For growing green crops in vertical container-type greenhouses, including Beta vulgaris cutting, the sowing of seeds can be in the seedling department, bypassing the germination chamber. Beta vulgaris seedling period is 7 days, then within 3–4 months the “Baby greens” leafs are cut, the required parameters are reached by the plants in three weeks, namely leaves are cut about 4–6 times from each container, after that a turnover is performed. The proposed rational system of using the area promote increasing the amount of cut green from 0.25 to 2.0–2.86 kg from the production section. Agrotechnological measures for the use of crop rotation in the cultivation of Beta vulgaris in vertical hydroponics allow starting an autonomous mobile complex with maximum efficiency.

The article discusses the use of complex technical modeling to determine the level of capitalization of territories. An analysis of 17 UN goals for achieving sustainable development is carried out. These goals are achieved following the spiritual and moral principles that ensure the rational use of land and a socio-economic balance between the participants in projects at developing territories. Violation of the “reference” distribution of resources of the model layers causes losses of system stability, which involves the formation of an excess or insufficiency of resources in a particular layer, thereby determining the subject of management of the territory. The materials make it possible to supplement the theoretical provisions of land management, including the introduction of an indicator of socio-economic development of the territory into the theory and practice of land management; capitalization coefficients of some components of the territory, which form the nature of the territory as a land resource with improvements, taking into account the share of each participant in the reorganization of the territory, which allows for integrating the harmonious state of the territory, determining the development of the spatial-territorial system.

Abstract Synovial lipomatosis has been described as a rare disease of the synovial membrane in humans. This report represents a synovial lipomatosis case of the left stifle joint in a dog, diagnosed by MRI and validated by histopathologic examination. Synovial lipomatosis can be difficult to recognise due to the absence of specific clinical features, especially in view of its similarity to other disorders with the benign or malignant origin in the synovial membrane. Therefore, the validation of this pathology could be essential in directing patient management. The aim of this report was to describe approaches required for the identification of synovial lipomatosis, such as clinical signs, diagnostic imaging characteristics and histological pattern, that have not been published previously in veterinary medicine.