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216 research outputs found
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Continuous improvement of the assembly process of an automotive part applying lean manufacturing tools
Full text linkThe object of research: The analysis of the entire assembly process of any automotive part is of utmost importance, given that optimizing any indicator such as time, cost, labor, materials, among others, will allow increasing the productivity and efficiency of the companies.
Investigated problem: analyze how to reduce cycle time in the assembly process of an automotive part that is sold to Ford, this with the purpose of reducing costs and delivery times by making use of industrial engineering tools, specifically techniques related to lean manufacturing.
The main scientific results: the assembly process of the upper B Post of the F-CX727 platform was optimized, through continuous improvement tools, improving indicators such as the reduction of cycle time and the cost of the product sold to the customer.
The scope of practical application of the research results: auto parts companies specialized in the manufacturing of products for the automotive industry require the application of continuous improvement tools necessary to balance assembly lines and make incremental improvements in an organization.
Innovative technological product: The use of soft techniques and methodologies allows a company to be flexible in its assembly system, this allows it to generate value in its processes as well as the control and reduction of key efficiency indicators.
Scope of the innovative technological product: the scope of the research work is basically to present the development of continuous improvement techniques for an assembly product made in an auto parts industry in Mexico with the purpose of optimizing the process
Teacher trade unions, unionization of novice teachers, implications for professional development in South Africa
Full text linkThe object of research: In this research paper a critique of teacher trade unionism as a political mechanism and its impact on newly qualified teachers’ dilemmas is presented.
Investigated problem: Political power is inherently viewed as platform through which critical decisions on education matters are made. Some of these political decisions are, but not limited to teacher professional development and career advancements. Though the aim of teacher trade unions is to salvage the rights of the teachers in the profession, the historical development of teacher trade unions suggest that they act as political vanguard of the working class.
The main scientific results: This qualitative study probed the current state and nature of teacher trade unionism have and implications for novice teachers in the sense that it does not encourage professional development, rather, political one. The results of this study confirm and demonstrates that the choice of novice educators to join a trade union of their choice is intrinsically linked to the career pathways the trade unions can offer rather than what trade unions are able to offer in their careers.
The area of practical use of the research results: The study is of importance to South African novice teachers who are engaged in teacher professional development programs.
Innovative technological product: The results of this study made it possible to outline strategic directions for the introduction of digital technologies that will enhance teacher professional development. The results of this study further stresses that the lack of resources which impedes teacher professional development.
Scope of the innovative technological product: The result of the study concerns the implementation of professional development initiatives, that will require the integration of information and communications technology in the professional development process, stressing policy as an imperative point of departure
Study of loading of an improved container design during transportation by railway
Full text linkThe object of research. The object of research is the processes of occurrence, perception and redistribution of loads in the design of a container with a frame made of square pipes and lining made of smooth sheets.
Investigated problem. Under operating conditions, damage to containers may occur due to the loads acting on them during transportation by various modes of transport. One of the most determining among such loads are dynamic loads, which are experienced not only by the container structure, but also by the cargo placed in it. As a result, there may be damage to the structure of the container, as well as to the cargo, which necessitates additional costs, both for the repair of containers and for reimbursement of expenses for damage to the transported cargo. In addition, this situation is unfavorable from an environmental point of view. In this regard, there is a need to conduct research to improve the design of a universal container in order to reduce its load, as well as increase operational efficiency.
The main scientific results. A scientific substantiation of the use of square pipes as components of the frame of a universal container has been carried out.
The area of practical use of research results. The sphere of practical use of the obtained results is the engineering industry, in particular railway transport.
Innovative technological product. The concept of a universal container with a frame made of square pipes and a lining made of smooth sheets.
Scope of the innovative technological product. The developments proposed as part of the study will be useful recommendations for creating innovative vehicle designs, including modular ones
Assessment of information protection level against unauthorized access
Full text linkThe object of research. The study considers an effective method of assessing the information protection level in a computer network against unauthorized access based on the security graph.
Investigated problem. Existing approaches to assessing the information protection level against unauthorized access have certain shortcomings: the real structure of computer networks is not taken into account, losses from unauthorized access are estimated in a monetary unit, which may not always be appropriate, the variability of modern cyber-attack scenarios and dynamic characteristics are not fully taken into account .
The main scientific results. The results of the study showed that the proposed method of assessing the information protection level against unauthorized access in computer networks based on the security graph allows for a more accurate description of information resources due to their characteristic vulnerabilities. Based on the calculations of the security indicators of individual resources and the security of all information in the computer network, the ranking of risks and, accordingly, information resources according to the degree of criticality for the organization's activities is carried out. Recommendations have been developed to ensure the necessary information protection level against unauthorized access in the computer network.
The area of practical use of research results. The results of the research can be used in practice in corporate computer networks of any organizations, since the proposed method for assessing the information protection level against unauthorized access is easily adapted to the specific needs of the organization, taking into account the specifics of its activities and business.
Innovative technological product. The results of the study created an innovative strategy for assessing the information protection level against unauthorized access, which increases the control of information security and the compliance of computer networks with existing eligibility criteria.
Scope of the innovative technological product. The results of the research and the created innovative strategies relate to the information security of computer networks of any organizations
Bioengineering research on sesame anti-alimentary factors inactivation for confectionery industry
Full text linkThe object of research. The process of inactivation of inhibitors of proteolytic enzymes of sesame seeds for use in the confectionery industry.
Investigated problem. The use of sesame seeds in the confectionery industry is very popular, as it adds a unique taste and texture to products. However, inhibitors of seed proteolytic enzymes can limit the absorption of nutrients such as proteins. This can be a problem in terms of nutritional value and efficient use of sesame seeds in the food industry. Inactivation of inhibitors of proteolytic enzymes in sesame seeds will contribute to the stability and uniformity of the quality of raw materials, which is an important aspect in the confectionery industry. This allows enterprises to ensure high sustainable quality of products containing sesame seeds and competitive advantages of such products.
The main scientific results. The features of the inactivation of anti-alimentary factors of sesame were studied, namely the influence of the initial humidity and the time of treatment with ultra high frequency (UHF) radiation on the inactivation degree of inhibitors of proteolytic enzymes of the seeds. Rational conditions for pre-treatment of sesame seeds for inactivation of anti-alimentary factors were established: moisture to 10–13 %, treatment time with UHF radiation 220–240 s. The peculiarities of the use of crushed sesame seeds with an inactivated anti-alimentary complex in the technology of high-nutrition chocolate pastes were studied. Organoleptic evaluation of test samples with different content of sesame seeds was carried out, during which the products were evaluated according to their appearance, uniformity, plasticity, color, taste and aroma. The effect of the content of crushed sesame seeds with an inactivated anti-alimentary complex on the consumer properties of chocolate pastes was determined.
The area of practical use of research results. Taking into account the results of the research can contribute not only to the improvement of technological processes in confectionery production, but also to the development of new products that meet the modern requirements of consumers.
Innovative technological product. As a result of research, an innovative food product was created, which is an innovative approach to the use of sesame seeds in the technology of chocolate pastes with increased nutritional value.
Scope of the innovative technological product. The developed innovative technological product can be implemented in food technology. In particular, the use of sesame seeds with an inactivated anti-alimentary complex in the production of chocolate pastes should become an additional advantage for manufacturers in the market, especially in the context of increased demand for health food products
Development of technology for the production of sweet products based on melon fruit
Full text linkObject of research: the process of creating a technology for the preparation of sweet products using locally produced melon fruits.
Investigated goal: Development of technology for the production of sweet products from gourds on a natural basis using local unsold raw materials.
Main scientific results: possible ways of using unsold melon fruits in the food industry were identified, a solution to the problem of overproduction of melons and gourds in the country was proposed. The original technologies for the production of sweet products made on the basis of the fruits of gourds have been compiled and worked out. the evaluation of the nutritional value of finished products was carried out.
Area of practical use of research results: small and medium-sized farms for the production of melon fruits.
Innovative technological product: technology for the production of sweet products, which allows organizing the industrial processing of the unsold volume of gourds.
Scope of the innovative technological product: agricultural and food industry in the field of melons processing, small and medium enterprises for the production of melons, confectionery production
Mathematical model of information conflict of information networks
Full text linkThe object of the research information networks under conditions of destabilizing factors.
Investigated problem: The problem that is solved in the study is devoted to modeling the functioning of information networks in conditions of destabilizing influences. Known mathematical models of the functioning of information networks described only a separate process (a set of functioning processes) of a separate level of interaction of open systems. However, the combination of known models of functioning does not allow to obtain a complete picture of the antagonistic information conflict of information networks and the subsystem of destabilizing influences. That is why, in this study, a mathematical model of the antagonistic information conflict of information networks under conditions of complex influence of destabilizing factors is proposed.
The main scientific results: The essence of the mathematical model, which determines its novelty, is that antagonistic information conflict is considered at seven levels of the model of interaction of open systems. Moreover, antagonistic information conflict is considered as a time series at each level of interaction of open systems, where conflict at a separate level affects antagonistic information conflict at other levels of the model of interaction of open systems.
The area of practical use of the research results: This mathematical model is useful in network architecture management systems of communication nodes of different hierarchy levels. This mathematical model will allow formalizing the process of antagonistic conflict of information networks in conditions of complex influence of destabilizing factors, determining the type and duration of destructive influence on the information network. It is also advisable to use this mathematical model as an integral part of the mathematical and software of intelligent decision support systems.
The area of practical use of the research results: software, information systems, decision support systems.
Innovative technological product: part of the software of automated information network resource management systems.
Scope of the innovative technological product: automated information network
Diagnostics of the temperature condition of cast iron melting in induction furnaces by the content of SiO2 and CaO in slag
Full text linkThe object of the research: temperature conditions for melting cast iron in induction crucible furnaces for machine-building castings.
Investigated problem: incorrect selection of temperature conditions for melting cast iron in induction crucible furnaces with acid lining or deviation from the rational temperature conditions cause the risk of chemical wear of the lining. It can be caused by the interaction of the melt and slag with the lining. If the possibilities of continuous temperature control are limited and, for this reason, the possibilities of rational control of the melting process are limited, then the problem of assessing the state of the process and the risk of lining wear arises.
The main scientific results: a mathematical description of the diagnostic rule for assessing the temperature conditions for melting cast iron in induction furnaces was obtained. It is a linear discriminant function of two variables, the value of which is compared with a certain threshold. Based on this comparison, it is possible to assess the temperature conditions of the process.
The area of practical use of the results of the study: the obtained results can be used in foundries of industrial enterprises equipped with induction crucible furnaces, in which castings from cast iron are made.
Innovative technological product: a diagnostic rule that allows for an indirect assessment of the melting temperature regime based on the SiO2 and CaO content in the slag. This diagnostic rule can be part of a decision support system in the process of induction melting control or integrated with the melting control system.
The scope of the innovative technological product: technological processes of induction melting of cast iron at the level of an element of the system or the melting control proces
Sars-Cov-2 B.1.1.529 (Omicron) variant outbreak: case series presentations and response to treatment at the Islamic University in Uganda health facility
Full text linkThe object of research: The study, investigated the clinical presentations of patients who tested Positive for Covid-19 (Omicron Variant), their response to treatment, and the levels of transmissibility of the infection.
Investigated problem: As the globe, continent, and nation are struggling with the emergency of the new COVID-19 omicron Virant outbreak there’s not much information known about the behavior of this new threat to enable clinicians, and public health specialists, and policymakers to curb the problem.
The main scientific results: The study found that headache, cough, fevers and, general body weakness was the commonest presenting complaints, 3 of the cases reported difficulties in breathing. None of the cases required admission. There was no difference in the severity of the illness and the response to treatment between the vaccinated and the non-vaccinated cases. Cases that did steaming as an adjuvant/supplementary treatment reported a shorter duration of symptomatic relief than those that did not.
The area of practical use of the research results: The findings will act as a practical guide to clinicians, public health specialists, and policymakers in the management of the COVID-19 Omicron Variant.
Innovative technological product: The use of steaming as an adjuvant to symptomatic relief management of respiratory tract infections.
Scope of the innovative technological product: Omicron Variant produces a less severe illness than earlier variants of COVID-19. The study also reveals that vaccination alone was not effective in the prevention of contraction of the Omicron Variant and other newer variants. However, vaccination may have been advantageous in protecting the cases from progressing to severe disease. Thus, other IPCs measures must be maintained and booster doses of COVID-19 vaccinations should be encouraged. Large-scale on the effectiveness of steaming and other locally made remedies for symptomatic management of respiratory tract infections should be done
Social media as a campaign tool against online gender-based violence in South Africa
Full text linkThe object of this research is: to explore the correlation between social media as a campaign tool against online gender-based violence (GBV) in South Africa.
The researchers investigated the following problem: Over the past decade, there have been several prominent incidents of harassment and stalking in South Africa. The issue of GBV against women in South Africa is prevalent in mainstream and online social media. Thus, women and girls are targeted in what is seemingly becoming a prolonged cycle of GBV in the country. The Cybercrimes Act 19 of 2020 was found to be a relevant legal framework in South Africa for responding to online GBV. Thus, the study was underpinned by social exchange and the spiral of silence theories.
Methods and Materials: In this non-empirical study, a systematic review was employed. Social media as a campaign tool against online gender-based violence (GBV) in South Africa was qualitatively studied. For the data collection process, the most recent repositories such as journal articles, books, reports, conference papers, dissertations and organizations’ websites were gathered and systematically reviewed from July 2022 to November 2022. However, thematic analysis was used with due care to analyze data for the study. The NVivo software was used to identify common, repetitive and different themes.
The main results of the research are: As a result of the study's findings, there have been an increasing number of social media campaigns on sites such as Facebook, Instagram and Twitter used by women all over the world to help combat the scourge of GBV. In this regard, women are using social media platforms to cry out for help and band together to fight a common enemy that violates their human rights and bodily integrity through social injustice.
The area of practical use of the research is for: This study is pivotal since it aimed at proposing intervention strategies to combat online GBV in South Africa. Most importantly, the outcome of this study will help in the development of more policy roadmaps for the successful combat of online GBV in South Africa and across the world. In a nutshell, the study recommends that law enforcement agencies, policymakers and civil society, among others, put in place additional frameworks to curb online GBV in South Africa