Using Modern Technologies in the Production of Mining Equipment

After a period of operation imported mining equipment starts failing. As a rule, breakages and critical wear of parts do not involve the entire product, but its individual parts. Despite this, manufacturers of this equipment do not provide repair kits, but offer to change the units and assemblies entirely. As a result, the repair and maintenance of imported equipment imposes significant financial costs. This paper proposes ways to eliminate or reduce the additional costs. The problem solution is based on the determination of the chemical composition and structure of worn out or out-of-order parts, reproduction of their manufacturing technology and production of analogues of these parts in single quantities. The work is performed on the example of high-pressure pump parts and large-sized gears used in mining equipment. For high-pressure pumps, analogues of end sealing gaskets and bearing bushings were made. The obtained experience can be used in the manufacturing and restoration of mining equipment in the Kuzbass enterprises, which allows reducing financial costs and implementing import substitution. The research part of the work was performed in the metallurgical laboratories of KuzSTU, and the reproduction of worn out and out-of-order parts was carried out at enterprises which requested this study

Joint Activity of Autonomous Actors in an Open Educational Environment

Recently, a considerable literature has grown up around the theme of the transition to the digital economy, the increasing value of the individual with unique features and the ability for self-conscious activity. In order to improve the quality of teaching, it is necessary to develop a methodology of targeted application in the education of jointly distributed activities, characteristic of modern youth.In this regard, this article aims at the development of the assessment criteria and identification of actor’s autonomy levels and their joint activities in the educational process, and definition of methods for organizing jointly distributed activities of autonomous actors in the education.The leading methods in the study were monitoring the activities of teachers and students in social networks, especially on educational communication platforms, identifying and comparing the characteristics of these activities; analysis of the products of educational activities of students interacting in educational networks; expert assessments to determine the level of quality of the achieved results.The article justifies the criteria of assessment of the levels of the educational actors’ autonomy and their activities, developed the methods of organizing jointly distributed activities of autonomous actors of the educational process and revealed the possibility of changing their functional roles depending on the type of their interaction.The materials presented in the article allow creating the organizational and methodological conditions for the formation of virtual training groups, taking into account the level of preparedness of autonomous actors for joint educational activities in order to improve the quality of teaching

Digitalisation of Agricultural Production for Precision Farming: A Case Study

The introduction of a digital platform for practical use at an agro-industrial enterprise is of great practical importance for the development of precision farming. Modern digital information systems are an integral part of precision farming and, in many ways, their foundation. During the work on the Farm Management Information Systems (FMIS) project, software and methodological framework for the use of precision farming techniques and information technologies for managing the process of growing crops in the field was developed. The introduction of a digital platform was carried out as an important experiment. Research methods such as bibliographic analysis and statistical processing were used. This study used modelling and statistical estimation of parameters. The findings were used to estimate the volume of transactions. In addition, during the experiment, communication schemes were worked out. The channel for receiving and transmitting information was tested, along with the channel-forming equipment (routers, switches, gateways) and the basic settings. The study checked the integration of the platform with external systems. A test was carried out for the passage of digital signals to the platform, including various electronic forms and reports. The recommendation for the policy planner is to ensure the required accuracy of the results. The practical value of our findings is that the electronic recording and preservation of the history of fieldwork and crops can help agro-industry workers in preparing special reports on the production cycle

Digitalisation of Agricultural Production for Precision Farming: A Case Study

The introduction of a digital platform for practical use at an agro-industrial enterprise is of great practical importance for the development of precision farming. Modern digital information systems are an integral part of precision farming and, in many ways, their foundation. During the work on the Farm Management Information Systems (FMIS) project, software and methodological framework for the use of precision farming techniques and information technologies for managing the process of growing crops in the field was developed. The introduction of a digital platform was carried out as an important experiment. Research methods such as bibliographic analysis and statistical processing were used. This study used modelling and statistical estimation of parameters. The findings were used to estimate the volume of transactions. In addition, during the experiment, communication schemes were worked out. The channel for receiving and transmitting information was tested, along with the channel-forming equipment (routers, switches, gateways) and the basic settings. The study checked the integration of the platform with external systems. A test was carried out for the passage of digital signals to the platform, including various electronic forms and reports. The recommendation for the policy planner is to ensure the required accuracy of the results. The practical value of our findings is that the electronic recording and preservation of the history of fieldwork and crops can help agro-industry workers in preparing special reports on the production cycle

Synthesis of Optimal Algorithms of Recognition of Group Air Targets in Airborne Radar Systems

В статье при байесовском критерии оптимальности синтезированы алгоритмы распознавания на этапе вторичной обработки сигналов численного и типового состава групповой воздушной цели (ГВЦ), характера её полёта в радиолокационных системах (РЛС) воздушного базирования, построенных по импульсно-доплеровскому (ИД) принципу обработки сигналов с длительным временем их когерентного накопления. При этом предполагается, что имеется информация о состоянии ГВЦ, полученная в результате обработки сигналов в РЛС на этапе первичной обработки радиолокационных (РЛ) сигналов, отражённых от ГВЦ.In the article by Bayesian optimality criteria algorithms for the recognition stage, the secondary signal processing and numerical model of group air targets , the nature of its flight in radar systems , airborne, built by pulse-Doppler (ID) principle of signal processing of a long time coherent accumulation. In this case, it is assumed that there is information about the state of group air targets, the resulting signal processing in radar at the stage of primary processing of radar (radar) signals reflected from the group of air target

Measurement of the degree of effectiveness of the utilization of the Balanced Scorecard in a graduate educational institution

Este estudo teve como objetivo a mensuração do grau de eficácia da utilização do Balanced Scorecard – BSC como instrumento de apoio à tomada de decisões estratégicas no Centro Universitário do Leste de Minas Gerais – Unileste-MG. Inicialmente, foi realizado um levantamento bibliográfico sobre o assunto, com o intuito de dar suporte à implementação do instrumento na referida instituição de ensino superior. Através desse levantamento, foi possível mostrar os antecedentes do surgimento do BSC, os conceitos inerentes à utilização do mesmo, as definições encontradas na literatura e o seu funcionamento. Além disso, foram destacados os diversos usos do BSC, bem como os aspectos positivos e negativos do instrumento, e as dificuldades de implementação da ferramenta reportados pela literatura consultada. Num segundo momento, com a implantação do BSC na Instituição, foi possível a comparação entre as dificuldades reportadas pela literatura e aquelas encontradas na sua aplicação no Unileste-MG. Após a sua implantação, foram aplicadas entrevistas contendo questões visando verificar a utilização ou não do BSC pelos gestores do Unileste-MG. Os dados indicaram que, no momento apurado pela pesquisa e nessa instituição especificamente, o BSC não foi eficaz no apoio à tomada de decisões, tendo em vista a sua não utilização pelos envolvidos no processo, conforme deveria ter ocorrido. O resultado alcançado não invalida a utilidade do instrumento, pois são apresentados aos futuros pesquisadores e interessados no uso do BSC os percalços que devem ser removidos para que a ferramenta seja útil como apoio à tomada de decisões gerenciais. Deve-se ainda destacar como um sub-produto da pesquisa o estabelecimento de um modelo de implementação do BSC em Instituição Privada de Ensino Superior que, por ser bastante genérico, pode ser adaptado com facilidade a outros tipos de entidades.The objective of this study is to measure the degree of effectiveness of the utilization of the Balanced Scorecard – BSC as a supportive tool to the strategic decisions that are made in the Centro Universitário do Leste de Minas Gerais – Unileste-MG. As a beginning, a bibliographic research was made about the subject, with the purpose of giving support to the implementation of the tool in this educational institution. By the research made, it was possible to identify the previous history of the BSC, the concepts related to the use of it, definitions found in the literature and its operation. Besides that, the varied uses of the BSC were pointed out, as well as the positive and negative aspects of this tool and the difficulties towards its implementation reported by the literature consulted. In a second stage, with the implementation, it was possible to compare the difficulties reported by the literature and those found in its application in Unileste-MG. After the implementation, interviews were made containing questions to verify the utilization or not of the BSC by the administrators of the institution. The data indicated that in the period considered by the study and in this institution specifically, the BSC didn’t obtain a degree of effectiveness as a supportive tool, due to the not utilization of it by the individuals involved in the process, as it was expected. The result obtained does not invalid the utilization of the tool, because the difficulties that must be solved so that the tool might be useful to support making decisions in management were presented to the future researches and those interested in the use of the BSC. As a sub-product of this study, it was pointed out a establishment of an implementation model of BSC in a graduate educational institution, and because this model is rather generic, may be easily adapted to other kinds of entities

Flagellin-fused protein targeting M2e and HA2 induces potent humoral and T-cell responses and protects mice against various influenza viruses a subtypes

Abstract Background Current influenza vaccines are mainly strain-specific and have limited efficacy in preventing new, potentially pandemic, influenza strains. Efficient control of influenza A infection can potentially be achieved through the development of broad-spectrum vaccines based on conserved antigens. A current trend in the design of universal flu vaccines is the construction of recombinant proteins based on combinations of various conserved epitopes of viral proteins (M1, M2, HA2, NP). In this study, we compared the immunogenicity and protective action of two recombinant proteins which feature different designs and which target different antigens. Results Balb/c mice were immunized subcutaneously with Flg-HA2–2-4M2ehs or FlgSh-HA2–2-4M2ehs; these constructs differ in the location of hemagglutinin’s HA2–2(76–130) insertion into flagellin (FliC). The humoral and T-cell immune responses to these constructs were evaluated. The simultaneous expression of different M2e and HA2–2(76–130) in recombinant protein form induces a strong M2e-specific IgG response and CD4+/ CD8+ T-cell response. The insertion of HA2–2(76–130) into the hypervariable domain of flagellin greatly increases antigen-specific T-cell response, as evidenced by the formation of multi-cytokine-secreting CD4+, CD8+ T-cells, Tem, and Tcm. Both proteins provide full protection from lethal challenge with A/H3N2 and A/H7N9. Conclusion Our results show that highly conserved M2e and HA2–2(76–130) can be used as important targets for the development of universal flu vaccines. The location of the HA2–2(76–130) peptide’s insertion into the hypervariable domain of flagellin had a significant effect on the T-cell response to influenza antigens, as seen by forming of multi-cytokine-secreting CD4+ and CD8+ T-cells

Synthesis of Optimal Algorithms of Recognition of Group Air Targets in Airborne Radar Systems

В статье при байесовском критерии оптимальности синтезированы алгоритмы распознавания на этапе вторичной обработки сигналов численного и типового состава групповой воздушной цели (ГВЦ), характера её полёта в радиолокационных системах (РЛС) воздушного базирования, построенных по импульсно-доплеровскому (ИД) принципу обработки сигналов с длительным временем их когерентного накопления. При этом предполагается, что имеется информация о состоянии ГВЦ, полученная в результате обработки сигналов в РЛС на этапе первичной обработки радиолокационных (РЛ) сигналов, отражённых от ГВЦ.In the article by Bayesian optimality criteria algorithms for the recognition stage, the secondary signal processing and numerical model of group air targets , the nature of its flight in radar systems , airborne, built by pulse-Doppler (ID) principle of signal processing of a long time coherent accumulation. In this case, it is assumed that there is information about the state of group air targets, the resulting signal processing in radar at the stage of primary processing of radar (radar) signals reflected from the group of air target

Additional file 2: of Flagellin-fused protein targeting M2e and HA2 induces potent humoral and T-cell responses and protects mice against various influenza viruses a subtypes

Figure A. Alignment of HA2 consensus sequences of A/H3N2 and A/H7N9 (including human isolates) from phylogenetic group 2. The start of HA2 subunit is indicated by the arrow; sequences of HA2(76–130) are underlined in red; identical sequences are shown in yellow; substitution by amino acids similar in properties are shown in green; amino acid substitutions are marked no color; the insertions are shown in blue. (PDF 206 kb

Additional file 3: of Flagellin-fused protein targeting M2e and HA2 induces potent humoral and T-cell responses and protects mice against various influenza viruses a subtypes

Table S1. The references relating to the B- and CD4+ T-cell epitopes in the HA2 (76–130) domain. (PDF 166 kb