scholarly journals CLASSIFICATION OF ROBOTIC PLATFORMS AND READY-MADE TECHNICAL SOLUTIONS FOR TEACHING PUPILS THE ROBOTICS FUNDAMENTALS

2021 ◽  
pp. 1-12
Author(s):  
Serhii Baranov
Keyword(s):  
Rapid Development ◽  
National Level ◽  
Ministry Of Education ◽  
School Aged Children ◽  
Advantages And Disadvantages ◽  
Basic Competencies ◽  
Robotic Platforms ◽  
Number Of Publications ◽  
Technical Solutions

The use of robotics systems in education also known as "Educational robotics", "Robotics in education" is gaining popularity as a trend. This is evidenced by the increase in the number of publications on this topic in scientific journals and conducting an experiment at the national level on "Methodological system of teaching the basics of technology and robotics as part of STEM-education" by the Ministry of Education and Science of Ukraine. The rapid development of the robotics industry necessitates training of appropriately qualified specialists. However, school remains a traditional place to master basic competencies needed to determine the professional orientation of a person, and familiarity with robotics increases the chances of students choosing this area of activity in the future. Teachers mainly choose the most common technical tools for teaching robotics, which has both advantages and disadvantages. It is important to develop a classification of educational technical solutions that already exist and are used in the process of teaching the basics of robotics at school. The paper analyzes sets of components used in teaching the basics of robotics for school-aged children, explores 84 different technical solutions that can be used in the process of learning robotics, and identifies common and distinctive features. As a result of the research a classification of robotic platforms and ready-made technical solutions was offered for use by teachers in the process of teaching students the basics of robotics. In the perspective of further research, it is planned to develop methodological recommendations for the selection of content and means of teaching the basics of robotics to secondary school pupils.

scholarly journals On Licensing the Technology of Small Modular Reactors

2019 ◽  
pp. 3-9
Author(s):  
О. Dybach ◽  
H. Plachkov
Keyword(s):  
Nuclear Industry ◽  
Advantages And Disadvantages ◽  
Steady Growth ◽  
Small Modular Reactors ◽  
Small Modular Reactor ◽  
Promising Area ◽  
Design Solutions ◽  
Operating Organization ◽  
Technical Solutions

There has been a steady growth of interest in the technology of small modular reactors (SMR) in the world recently. SMRs are considered as a promising area for the further development of nuclear industry. The paper defines the term “small modular reactor”, presents the scope, potential advantages and disadvantages of SMR. A review was made and a classification of SMR projects was proposed depending on the novelty of their technical solutions. The paper presents an enlarged comparative analysis of individual SMR technical solutions (based on the example of Holtec International SMR-160) with operating Ukrainian NPPs to identify peculiarities of SMR that should be addressed in licensing. Certain specific design solutions of SMR-160 are correlated with defense-in-depth levels. The approaches and condition for licensing SMR designs in the international practice are analyzed. The paper identifies problematic aspects with regard to regulatory framework and confirmation of the efficiency of SMR design solutions, as well as formulates proposals and recommendations for the first steps to ensure the licensing process in response to the initiative of the operating organization Energoatom.  

Classification of Vortex Jet Devices for Gas Flow Control in Pneumo-Hydraulic Systems

2020 ◽  
pp. 43-58
Author(s):  
A.Y. Uss ◽  
A.V. Chernyshev
Keyword(s):  
Flow Control ◽  
Gas Flow ◽  
Vortex Flow ◽  
Hydraulic Systems ◽  
Advantages And Disadvantages ◽  
Working Medium ◽  
Functional Features ◽  
Technical Solutions ◽  
First Time

This article presents a review and analysis of the literature on the development and study of vortex jet devices that are used as control valves employing the principle of the vortex flow of the working medium. The article discusses vortex valves without mechanically moving parts, as well as semi-mechanical vortex valves. The principle of operation of a vortex jet device is described and, for the first time, a classification of vortex jet devices by a number of structural and functional features is carried out. The analysis of technical solutions identifies the advantages and disadvantages of vortex jet devices. Recommendations are given for selecting a structure diagram of a vortex jet device.

scholarly journals Formation of the Domestic Dual Studies Pattern and Superposition of Stakeholders – The Case of Ukraine

2020 ◽  
pp. 36-57
Author(s):  
Tetiana Vasylieva ◽  
Olena Davlikanova
Keyword(s):  
National Level ◽  
Stakeholder Analysis ◽  
State Level ◽  
Ministry Of Education ◽  
Wide Range ◽  
System Functioning ◽  
Complex Project ◽  
The Impact ◽  
Engagement System

The article investigates the results of stakeholder analysis applied in the course of design and implementation of a national-level project aimed at Ukrainian dual studies management (DSM) system formation. The concept of dual studies (DS) was introduced and promoted in Ukraine thanks to a launched in 2013 project conducted by the Friedrich-Ebert-Stiftung Office in Ukraine (FES-Ukraine) in cooperation with the Ministry of Education and Science of Ukraine (MES), Ukrainian Marketing Association, a wide range of higher educational establishments (HEEs), employers, their associations and other interested parties. Being a complex project, it required deliberate approach to stakeholder analysis and classification that allowed shaping well-targeted strategies aimed at ensuring the required scope of stakeholders’ engagement. The authors applied the Mendelow’s Matrix of stakeholder classification; offered classification of stakeholders according to the DSM levels (macro or state level; meso or regional and sectoral level; and micro level or the level of HEE-company cooperation); and, in addition, in 2013 (launch of the project) and 2019 (launch of the national experiment of DSM introduction as a result of project activities) the authors conducted superposition of stakeholders in the “impact – engagement” system of coordinates. This approach demonstrated expected vs. caused impact of stakeholders on DSM introduction and their expected/real engagement into DSM system functioning in Ukraine. A superposition interference as of 2013 and 2019 demonstrated differences in the list and functions of stakeholders engaged into Ukrainian DSM system on the initial and current stages of its development. This allowed confirming the hypothesis concerning the impossibility of German DSM management system “import” without its adaptation to the national context.

An old friend is better than two new ones? Approaches to market research in the context of digital transformation for the antitrust laws enforcement

2020 ◽  
pp. 37-55 ◽  
Author(s):  
A. E. Shastitko ◽  
O. A. Markova
Keyword(s):  
Business Models ◽  
Rapid Development ◽  
Digital Transformation ◽  
Market Definition ◽  
Type I ◽  
Type Ii ◽  
Digital Platforms ◽  
Advantages And Disadvantages ◽  
Pass Through ◽  
Type Ii Errors

Digital transformation has led to changes in business models of traditional players in the existing markets. What is more, new entrants and new markets appeared, in particular platforms and multisided markets. The emergence and rapid development of platforms are caused primarily by the existence of so called indirect network externalities. Regarding to this, a question arises of whether the existing instruments of competition law enforcement and market analysis are still relevant when analyzing markets with digital platforms? This paper aims at discussing advantages and disadvantages of using various tools to define markets with platforms. In particular, we define the features of the SSNIP test when being applyed to markets with platforms. Furthermore, we analyze adjustment in tests for platform market definition in terms of possible type I and type II errors. All in all, it turns out that to reduce the likelihood of type I and type II errors while applying market definition technique to markets with platforms one should consider the type of platform analyzed: transaction platforms without pass-through and non-transaction matching platforms should be tackled as players in a multisided market, whereas non-transaction platforms should be analyzed as players in several interrelated markets. However, if the platform is allowed to adjust prices, there emerges additional challenge that the regulator and companies may manipulate the results of SSNIP test by applying different models of competition.

Research of methods of protecting organizations from inimical mergers and acquisitions

2020 ◽  
pp. 29-45
Author(s):  
O.A. Naydis ◽  
I.O. Naydis
Keyword(s):  
Comparative Analysis ◽  
Mergers And Acquisitions ◽  
Positive Effects ◽  
Advantages And Disadvantages ◽  
Preventive Methods

The article considers the types, forms, mechanisms and classification of mergers and acquisitions, identifies their positive effects, and studies the tactics of acquisitions. The analysis of anti-capture measures: active and preventive methods of protection against hostile mergers and acquisitions. A comparative analysis of anti-capture measures with acquisitions tactics was carried out, the advantages and disadvantages of their application were identified.

Classification of the factors forming the cost of the web-site

2017 ◽  
Vol 31 (2) ◽  
pp. 82-89
Author(s):  
E. S. Epifanov
Keyword(s):  
Web Site ◽  
Internet Site ◽  
Advantages And Disadvantages ◽  
Major Factors ◽  
The Cost ◽  
The Web

This article presents a classification of major factors that shape the cost of Internet site. Also discusses the limitations in determining the objectives of the web site; advantages and disadvantages of different factors.

The Chemistry Of Antibiofilm Phytocompounds.

2020 ◽  
Vol 20 ◽  
Author(s):  
Dibyajit Lahiri ◽  
Moupriya Nag ◽  
Sayantani Garai ◽  
Rina Rani Ray
Keyword(s):  
Antimicrobial Activity ◽  
Antibiotic Resistance ◽  
Antibiotic Therapy ◽  
Antimicrobial Agents ◽  
Chemical Nature ◽  
Rapid Development ◽  
Wide Spread ◽  
Chronic Infections ◽  
Therapeutic Uses

: Phytocompounds are long known for their therapeutic uses due to their competence as antimicrobial agents. The antimicrobial activity of these bioactive compounds manifests their ability as an antibiofilm agent and is thereby proved to be competent to treat the wide spread of biofilm-associated chronic infections. Rapid development of antibiotic resistance in bacteria has made the treatment of these infections almost impossible by conventional antibiotic therapy, which forced in the switch over to the use of phytocompounds. The present overview deals with the classification of the huge array of phytocompounds according to their chemical nature, detection of their target pathogen, and elucidation of their mode of action.

Recent Patents on the Angular Contact Ball Bearing of High-Speed Motorized Spindle

2020 ◽  
Vol 13 ◽  
Author(s):  
Yudong Bao ◽  
Linkai Wu ◽  
Yanling Zhao ◽  
Chengyi Pan
Keyword(s):  
High Speed ◽  
Ball Bearing ◽  
Rapid Development ◽  
Ceramic Materials ◽  
Development Trend ◽  
Numerical Control ◽  
Angular Contact Ball Bearing ◽  
Practical Applications ◽  
High Speed Cutting ◽  
Advantages And Disadvantages

Background:: Angular contact ball bearings are the most popular bearing type used in the high speed spindle for machining centers, The performance of the bearing directly affects the machining efficiency of the machine tool, Obtaining a higher value is the direction of its research and development. Objective:: By analyzing the research achievements and patents of electric spindle angular contact bearings, summarizing the development trend provides a reference for the development of electric spindle bearings. Methods:: Through the analysis of the relevant technology of the electric spindle angular contact ball bearing, the advantages and disadvantages of the angular contact ball bearing are introduced, and the research results are combined with the patent analysis. Results:: With the rapid development of high-speed cutting and numerical control technology and the needs of practical applications, the spindle requires higher and higher speeds for bearings. In order to meet the requirements of use, it is necessary to improve the bearing performance by optimizing the structure size and improving the lubrication conditions. Meanwhile, reasonable processing and assembly methods will also have a beneficial effect on bearing performance. Conclusion:: With the continuous deepening of bearing technology research and the use of new structures and ceramic materials has made the bearing's limit speed repeatedly reach new highs. The future development trend of high-speed bearings for electric spindles is environmental protection, intelligence, high speed, high precision and long life.

scholarly journals How Can I Grab That?

i-com ◽  
2020 ◽  
Vol 19 (2) ◽  
pp. 67-85
Author(s):  
Matthias Weise ◽  
Raphael Zender ◽  
Ulrike Lucke
Keyword(s):  
Virtual Reality ◽  
User Experience ◽  
Dimensional Space ◽  
Three Dimensional ◽  
Advantages And Disadvantages ◽  
Multiple Dimensions ◽  
Application Developers ◽  
Three Dimensional Space

AbstractThe selection and manipulation of objects in Virtual Reality face application developers with a substantial challenge as they need to ensure a seamless interaction in three-dimensional space. Assessing the advantages and disadvantages of selection and manipulation techniques in specific scenarios and regarding usability and user experience is a mandatory task to find suitable forms of interaction. In this article, we take a look at the most common issues arising in the interaction with objects in VR. We present a taxonomy allowing the classification of techniques regarding multiple dimensions. The issues are then associated with these dimensions. Furthermore, we analyze the results of a study comparing multiple selection techniques and present a tool allowing developers of VR applications to search for appropriate selection and manipulation techniques and to get scenario dependent suggestions based on the data of the executed study.

scholarly journals A Recent Investigation on Detection and Classification of Epileptic Seizure Techniques Using EEG Signal

2021 ◽  
Vol 11 (5) ◽  
pp. 668
Author(s):  
Sani Saminu ◽  
Guizhi Xu ◽  
Zhang Shuai ◽  
Isselmou Abd El Kader ◽  
Adamu Halilu Jabire ◽  
...  
Keyword(s):  
Deep Learning ◽  
Learning Algorithms ◽  
Epileptic Seizures ◽  
Seizure Detection ◽  
Performance Comparison ◽  
Eeg Signal ◽  
Detection Algorithms ◽  
Advantages And Disadvantages ◽  
Monitoring And Diagnosis

The benefits of early detection and classification of epileptic seizures in analysis, monitoring and diagnosis for the realization and actualization of computer-aided devices and recent internet of medical things (IoMT) devices can never be overemphasized. The success of these applications largely depends on the accuracy of the detection and classification techniques employed. Several methods have been investigated, proposed and developed over the years. This paper investigates various seizure detection algorithms and classifications in the last decade, including conventional techniques and recent deep learning algorithms. It also discusses epileptiform detection as one of the steps towards advanced diagnoses of disorders of consciousness (DOCs) and their understanding. A performance comparison was carried out on the different algorithms investigated, and their advantages and disadvantages were explored. From our survey, much attention has recently been paid to exploring the efficacy of deep learning algorithms in seizure detection and classification, which are employed in other areas such as image processing and classification. Hybrid deep learning has also been explored, with CNN-RNN being the most popular.

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