Load switching between main power grid to the backup grid by standard automatic transfer switch

PURPOSE. To develop a variant of the algorithm for the automatic input of the reserve, which consists in transferring the load in case of emergency situations, to make a simulation model in the MatLab® environment corresponding to the developed generalized electrical scheme of the system.METHODS. When solving the problem, the method of digital modeling was used, which consists in the maximum approximation of the system under study to a real object, implemented by means of MatLab.RESULTS. It is proposed to study the methods of synthesis of digital models of compensation of voltage drops by the example of a study of an automatic reserve transfer system, demonstrating an approach to modeling this system. When developing models in the MatLab environment, the parameters of real technical elements and devices and their digital analogues are taken into account. The issue of creating a digital model of an electric drive system, including a model of an asynchronous motor with a short-circuited rotor, is considered. The result, after final refinement, can be used to design a real system in production conditions.CONCLUSIONS. The developed model of the automatic transfer switch system is operable, the time indicators are satisfactory for systems that do not make excessive demands on performances and time intervals. For systems that are sensitive to current inrushes during load transfer, some improvements are required, which are reduced to the implementation of a high-speed automatic switch system. The development of this system is currently at the research stage, namely, the compilation of a load transfer logic that takes into account the phase matching of electrical circuits.

Monitoring Human-Wildlife Interactions in National Parks with Crowdsourced Data and Deep Learning

This short paper summarizes the first research stage for applying deep learning techniques to capture human-wildlife interactions in national parks from crowd-sourced data. The results from objection detection, image captioning, and distance calculation are reported. We were able to categorize animal types, summarize visitor behaviors in the pictures, and calculate distances between visitors and animals with different levels of accuracy. Future development will focus on getting more training data and field experiments to collect ground truth on animal types and distances to animals. More in-depth manual coding is needed to categorize visitor behavior into acceptable and unacceptable ones.

Competitiveness study in tourist corridors: the Brazil-Paraguay-Argentine-Chile Bioceanic Route case

The present article deals with a study of competitiveness in the Bioceanic Route, which is made up of the Brazil, Paraguay, Argentine, and Chile countries. The general objective of this research concerns the competitiveness of tourist corridors with a focus on the countries mentioned above. As research methodology, the present investigation had a qualitative and descriptive nature. The study has a deductive approach based on bibliographical and exploratory research, in face of theoretical description and characterization, as well as documentary research, by the access to files and documents during the investigation; and moreover, for carrying out the field research stage, the criteria selected were the main destinations crossing the Bioceanic Route, for observation and data collection, and local authorities were interviewed. The itinerary considered was from Campo Grande (state of Mato Grosso do Sul, Brazil), Paraguay, and Argentine to ports in Northern Chile. The criteria for analyzing the destinations were as follows: attractiveness, tourist information, transport, general infrastructure, quality of services, accessibility, hospitality, trade relations, destination management, conditional situations, and tourists’ perception. Results reveal nonconformity between the main cities in the corridor, such as Campo Grande, Salta, San Pedro de Atacama, and Iquique relative to all the elements analyzed, in relation to the other cities along the route.

A Study on the Development and Validation of an Intergenerational Solidarity Measuring Tool Using Mixed Methods

Intergenerational conflicts caused by rapid socioeconomic changes have highlighted the importance of strengthening intergenerational solidarity, emphasizing the necessity of tool designed to measure intergenerational solidarity. This study developed a standardized intergenerational solidarity measurement tool using mixed methods. In the qualitative research stage, 27 main survey questions were derived through literature research, in-depth interviews, and content validity verification. In the quantitative research stage, based on the results of a survey of 1,109 adults, both exploratory and confirmatory factor analyses of the questions were conducted, and the validity of the questions was confirmed. The analysis results were used to develop a 10-item measurement tool consisting of two factors: “recognition of intergenerational solidarity in the family” and “recognition of social intergenerational solidarity.” This study is the first attempt to develop a standardized measure of intergenerational solidarity, and it can be used for nationwide panel surveys in academic and policy research.

«Individual curriculum» as a way of planning by students of vocational and technical education of their employment

The article deals with the problem of student’s employment in the specialty of graduation at vocational education institutions. Considering the plans of some students on relearning or developing new skills in courses or internships, they need awareness of right specialty to choose and job preferably to find after graduation. The paper considers the relevant issue of research and development of individual planning methods for vocational education students in terms of their employment. The emphasis is made on this factor impact for future employment, namely its impact on the individual professional orientation and career, which can be planned through an individual curriculum i.e. balanced life planning. An individual curriculum is a set of activities that help taking responsibility for the future by combining educational activities at school, college, work and in general throughout the career. It determines the sequence, form and pace of mastering the educational program components, own experience and other successful experiences, methods and activities necessary for achievement of the main planning goal. An individual plan is important as planning efficiently turns knowledge into skills. The study considered based upon the "Individual curriculum" method and auxiliary test methods: "Success motivation and failure fear (questionnaire by Rean A.O.)", a test to determine the motive for a profession choice – the method of professional self-determination by J. Holland. The research was implemented on the basis of the Sumy Chemical-Technological Center for Vocational Education, consisting of two stages of online testing with further explanation to students and their individual curricula development. The first research stage involved students’ participation in an online quest, tests performance and obtaining explanations based on the methods of comprehensive interpretation. The second research stage involved the method of "individual curriculum planning" based on a plan template according to the study year.

Tropical cyclonic storms – Modeling studies in Indian Air Force

lkj & ns’k esa Hkkjrh; ok;qlsuk ¼vkbZ- ,- ,Q-½ dh lqjf{kr mM+kuksa ds fy, ekSle lsok,¡ miyC/k djkus dk mRrjnkf;Ro ekSle foKku foHkkx ds funs’kky; dk gSA Hkkjrh; ok;qlsuk ds csl ij fLFkr ekSle ¼esV½ dk;kZy; m".kdfVca/kh; pØokrksa ds cuus] rhoz gksus vkSj mudh xfr dk lw{e :Ik ls ekWuhVju djrs gSa rFkk ok;qlsuk dh cgqewY; lEifRr] eq[; :Ik ls gokbZ&tgktksa dh lqj{kk ds fy, psrkouh tkjh djrs gSaA pØokr ds izdksi ls izHkkfor fdlh Hkh LFkku ij cpko dk;ksaZ esa yxs gsyhdkWIVjksa@ok;q;kuksa ds fy, Hkh ;g dk;kZy; ekSle lsok,¡ miyC/k djkrs gSaA ekWMy ij fd, x, v/;;uksa ds vk/kkj ij okLrfod le; iwokZuqeku ds fy, Hkkjrh; ok;qlsuk }kjk 'kks/k dk;Z fd;k tk jgk gSA xzsy vkSj dSu&fÝ’k 2 ¼lrgh laogu lfgr½ diklh izpkyhdj.k ;kstuk dk mi;ksx djds pØokr ds ekxZ ds iwokZuqeku ds fy, Hkkjrh; ok;qlsuk ds ekSle vuqHkkx }kjk mM+hlk ds egkpØokr ds eslksLdsy fun’kZ ,e- ,e- 5 ds vk/kkj ij v/;;u fd;k x;k gSA xzsy ;kstuk ls rwQku ds okLrfod ekxZ ls yxHkx fudV ds ekxZ dk irk pyk gSA dSu&fÝ’k 2 ;kstuk ls irk pys ekxZ ls if’pe caxky vkSj mlds vkl&ikl ds {ks=ksa esa pØokr ds izfrorZu dk irk pyk gSA The Directorate of Meteorology is responsible for the provisioning of weather services for safe conduct of Indian Air Force (IAF) flying operations in the country. The Meteorological (Met) Sections at IAF bases closely monitor a Tropical Cyclone formation, intensification and movement and issue storm warning to safeguard its valuable property that primarily includes Aircrafts. It also provides the weather services for all the helicopter/Aircraft Rescue Operations that are taken up after the fury of the cyclone experienced at a place. Generation of real time forecast from model studies is in the Research Stage in IAF. A meso-scale model (MM5) studies of super cyclone of Orissa were carried out by IAF Met to generate forecast tracks of the Cyclone using Grell and Kain-Fritsch 2 (with shallow convection) cumulus parameterization scheme. The Grell scheme indicated the track slightly close to the actual track of the storm. The KF2 scheme led to the generation of the track that indicated the re-curvature of the system in to West Bengal and adjoining regions.

Should We Rethink How We Do Research?

Advances in digital technologies move incredibly fast from the research stage to practical use, and they generate radical changes in the world, affecting humans in all aspects of their life. The chapter illustrates how this can have profound implications on the way technological research is developed. It also discusses the need for researchers to engage more actively in public debates with society.

Development Student Worksheet Based on Problem-Based Learning (PBL) on Matrix Materials for Class XI

This study aims to determine the validity of PBL-based worksheets on the XI class matrix material. The type of research used is the research and development method (R & D). This research stage will be based on the ADDIE development stage which consists of the analysis, design, and development stages. The instrument used in this research is the LKPD validation sheet, and the data obtained will be processed descriptively. From the research results, it is known that the results of the LKPD validation are 87.92% with a very valid category. Based on the final results of this study, the Problem Based Learning (PBL) Worksheet on Class XI Matrix Material is very valid.

Valorisation of Starch Wastewater by Anaerobic Fermentation

Starch production is mainly focused on feedstocks such as corn, wheat and potato in the EU, whereas cassava, rice, and other feedstocks are utilised worldwide. In starch production, a high amount of wastewater is generated, which accumulates from different process steps such as washing, steeping, starch refining, saccharification and derivatisation. Valorisation of these wastewaters can help to improve the environmental impact as well as the economics of starch production. Anaerobic fermentation is a promising approach, and this review gives an overview of the different utilisation concepts outlined in the literature and the state of the technology. Among bioenergy recovery processes, biogas technology is widely applied at the industrial scale, whereas biohydrogen production is used at the research stage. Starch wastewater can also be used for the production of bulk chemicals such as acetone, ethanol, butanol or lactic acids by anaerobic microbes.

General endurance of first-year university students in the context of Covid-19 pandemics

The Covid-–19 pandemics caused significant damage to the system of physical education of students. The purpose of this research was to create a practical model of general physical endurance of first-year university male students in the context of the pandemic of the corona virus. The testing was carried out during physical education classes, which took place according to the first academic year curriculum. The time of overcoming the 2000 meters course on the stadium treadmill was measured in September and in March of the academic year 2019-2020. During the research stage, the indicator of general endurance of students of all the three universities statistically significantly deteriorated. According to the results of ANOVA the absence of a statistically significant difference in the value of the indicator of general endurance between students of three universities both at the beginning and at the end of the research stage was revealed. Keywords: Covid–19; endurance; modeling; students; testing