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2022 V International Conference on High Technology for Sustainable Development (HiTech)最新文献

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Idle Running Losses in Medium Voltage Overhead Power Lines 中压架空电力线路的空转损耗
2022 V International Conference on High Technology for Sustainable Development (HiTech) Pub Date : 2022-10-06 DOI: 10.1109/HiTech56937.2022.10145543
Velichko Atanasov, Dimo Stoilov
{"title":"Idle Running Losses in Medium Voltage Overhead Power Lines","authors":"Velichko Atanasov, Dimo Stoilov","doi":"10.1109/HiTech56937.2022.10145543","DOIUrl":"https://doi.org/10.1109/HiTech56937.2022.10145543","url":null,"abstract":"This article examines the issue of Idle Running Losses in Medium Voltage Overhead Power Lines. Experimental measurements are performed. Based on the results of the measurements, a convenient empirical model is proposed for the calculation of transversal (conductance) losses during the operation of the distribution overhead power lines. Numerical examples are presented, and important implications are discussed.","PeriodicalId":303925,"journal":{"name":"2022 V International Conference on High Technology for Sustainable Development (HiTech)","volume":"60 5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134445602","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Increasing the Supply Chain Competitiveness of Bulgarian Companies by Applying Blockchain Technology 通过应用区块链技术提高保加利亚公司的供应链竞争力
2022 V International Conference on High Technology for Sustainable Development (HiTech) Pub Date : 2022-10-06 DOI: 10.1109/HiTech56937.2022.10145534
I. Dimitrov, Rusen Gigov
{"title":"Increasing the Supply Chain Competitiveness of Bulgarian Companies by Applying Blockchain Technology","authors":"I. Dimitrov, Rusen Gigov","doi":"10.1109/HiTech56937.2022.10145534","DOIUrl":"https://doi.org/10.1109/HiTech56937.2022.10145534","url":null,"abstract":"In the years marked by technological progress, Blockchain technology (BCT) occupies an important place in every sector of the world economy. The trend is also noticeable in developing countries, especially affecting the countries of Central and Eastern Europe. Bulgaria, designated as the fintech capital of the Balkans, is marked by the rising BCT wave, which in turn leads to the growth of the crypto-ecosystem, both at the research level and through the practical use of the technology. As BCT is evolving in two main areas, namely fintech and supply chains, it is appropriate to find out the degree of concentration of individual implementations through which companies want to increase their recognizability globally. For their part, supply chains need to constantly increase their competitiveness, and it is particularly important to examine which tools derived from BCTs can give companies a competitive advantage.","PeriodicalId":303925,"journal":{"name":"2022 V International Conference on High Technology for Sustainable Development (HiTech)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134619162","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Models for the digitization of the learning process in higher schools / on the example of University of National and World Economy/ 高等学校学习过程数字化的模式/以国民与世界经济大学为例/
2022 V International Conference on High Technology for Sustainable Development (HiTech) Pub Date : 2022-10-06 DOI: 10.1109/HiTech56937.2022.10145550
T. Stoyanova, L. Boyanov
{"title":"Models for the digitization of the learning process in higher schools / on the example of University of National and World Economy/","authors":"T. Stoyanova, L. Boyanov","doi":"10.1109/HiTech56937.2022.10145550","DOIUrl":"https://doi.org/10.1109/HiTech56937.2022.10145550","url":null,"abstract":"The report presents models for the digitization of the learning process in higher schools on the example of the University of National and World Economy. The experience and good practices of the university in the field of digitization of university education are presented.","PeriodicalId":303925,"journal":{"name":"2022 V International Conference on High Technology for Sustainable Development (HiTech)","volume":"56 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132463721","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Electricity Grids Facing Cyber Threats: What Approaches For Electricity Companies? 电网面临网络威胁:电力公司该如何应对?
2022 V International Conference on High Technology for Sustainable Development (HiTech) Pub Date : 2022-10-06 DOI: 10.1109/HiTech56937.2022.10145560
Abasse Kpegouni, Eyouléki Tchéyi Gnadi Palanga, A. A. Salami
{"title":"Electricity Grids Facing Cyber Threats: What Approaches For Electricity Companies?","authors":"Abasse Kpegouni, Eyouléki Tchéyi Gnadi Palanga, A. A. Salami","doi":"10.1109/HiTech56937.2022.10145560","DOIUrl":"https://doi.org/10.1109/HiTech56937.2022.10145560","url":null,"abstract":"The integration of ICTs within electric energy companies has helped to facilitate communication between different sites of the electricity grids and the optimization of the electricity supply chain as well as a remote control. Despite the advantages these technologies offer within electric energy systems, they have exposed electricity grids so much to vulnerabilities, considerably increasing the risks of cyber threats in recent years. However, IT security for the electricity grids of electric energy companies is becoming important. The cyber-attacks that have affected electric energy companies around the world, the different techniques used by cyber attackers, and the approaches to strengthen the security of the electricity grids from cyber threats were presented.","PeriodicalId":303925,"journal":{"name":"2022 V International Conference on High Technology for Sustainable Development (HiTech)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131368328","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Study of Social Risks Affecting the Financial Stability of the Oil and Gas Industry and The Ways of Enterprise Management 影响油气行业财务稳定的社会风险及企业管理方法研究
2022 V International Conference on High Technology for Sustainable Development (HiTech) Pub Date : 2022-10-06 DOI: 10.1109/HiTech56937.2022.10145561
O. Vihristyuk, Adile Dimitrova
{"title":"The Study of Social Risks Affecting the Financial Stability of the Oil and Gas Industry and The Ways of Enterprise Management","authors":"O. Vihristyuk, Adile Dimitrova","doi":"10.1109/HiTech56937.2022.10145561","DOIUrl":"https://doi.org/10.1109/HiTech56937.2022.10145561","url":null,"abstract":"Over the past few years, there has been a strong trend towards consolidating non-financial reporting standards in order to create uniform international rules for disclosure of information in the field of sustainable development. The geopolitical crisis, military actions on the territory of Ukraine, social discontent, the crisis of the oil and gas sector, global challenges exacerbated by the COVID-19 pandemic have made environmental, social and management issues (ESG) even more urgent for politicians, boards of directors, managers and the population. The number of investors in the world who make a choice in favor of companies that comply with these principles is increasing. And this is not accidental, since compliance with ESG standards minimizes environmental, social and corporate risks and, in general, has a positive impact on the activities of the entire organization. The article examines the impact of new socio-economic risks on the policy, investment strategies of Kazakhstan oil and gas enterprises and innovative forms of enterprise reporting. The object of the study is the oil and gas companies of Kazakhstan, and in particular their reporting and functioning system.","PeriodicalId":303925,"journal":{"name":"2022 V International Conference on High Technology for Sustainable Development (HiTech)","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115068812","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Influence of the Asymmetrical Load on Losses in Low Voltage Network 不对称负荷对低压电网损耗的影响
2022 V International Conference on High Technology for Sustainable Development (HiTech) Pub Date : 2022-10-06 DOI: 10.1109/HiTech56937.2022.10145568
Velichko Atanasov, Dimo Stoilov
{"title":"Influence of the Asymmetrical Load on Losses in Low Voltage Network","authors":"Velichko Atanasov, Dimo Stoilov","doi":"10.1109/HiTech56937.2022.10145568","DOIUrl":"https://doi.org/10.1109/HiTech56937.2022.10145568","url":null,"abstract":"In this article, we present contemporary models for determining active power losses in low-voltage electrical networks. We demonstrate their application to asymmetrical load evaluations. We give a short illustrative example of the effect of balancing the phase loads in a low-voltage electrical network.","PeriodicalId":303925,"journal":{"name":"2022 V International Conference on High Technology for Sustainable Development (HiTech)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127418571","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Modeling, Design and Prototyping of a Synchronous DC-DC Converter 同步DC-DC变换器的建模、设计和原型制作
2022 V International Conference on High Technology for Sustainable Development (HiTech) Pub Date : 2022-10-06 DOI: 10.1109/HiTech56937.2022.10145537
N. Hinov, Valeri Ivanov
{"title":"Modeling, Design and Prototyping of a Synchronous DC-DC Converter","authors":"N. Hinov, Valeri Ivanov","doi":"10.1109/HiTech56937.2022.10145537","DOIUrl":"https://doi.org/10.1109/HiTech56937.2022.10145537","url":null,"abstract":"In order to gain usage of solar power the produced energy from solar panels has to go through a DC-DC converter. The DC-DC converter regulates and monitors the output voltage provided to the battery. The converter uses a pair of super-fast switching MOS transistors to regulate the output voltage and an inductance and a capacitor to store that energy during the off half cycle. To control the fast switching of the transistors an integrated circuit is used. The LM5146 used in this project can turn off and on the transistors up to 1 billion times per second, can monitor the output current and shut itself down if the supplied voltage in below a certain point. In the following papers it's presented the designing of such DC-DC converter. The verification of the designing has been made with computer simulations and solved equations.","PeriodicalId":303925,"journal":{"name":"2022 V International Conference on High Technology for Sustainable Development (HiTech)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114994594","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Management of Sustainable Development as a Task for Coordinated Optimum 作为协调优化任务的可持续发展管理
2022 V International Conference on High Technology for Sustainable Development (HiTech) Pub Date : 2022-10-06 DOI: 10.1109/HiTech56937.2022.10145517
Hristo Krachunov, S. Ovcharova
{"title":"Management of Sustainable Development as a Task for Coordinated Optimum","authors":"Hristo Krachunov, S. Ovcharova","doi":"10.1109/HiTech56937.2022.10145517","DOIUrl":"https://doi.org/10.1109/HiTech56937.2022.10145517","url":null,"abstract":"The article presents the initial principles, concepts and definitions for the formulation of the general task for optimal management of sustainable development. The general target function for satisfaction and inherent material and emotional costs of the subjects carrying out exchanges with each other and having a goal for sustainable development is derived. The common task for sustainable development in optimizing the exchange between two or more entities has been formulated. An aggregated algorithm for coherent optimal management to achieve sustainable development of industrial zones and production systems is presented. Conclusions have been made.","PeriodicalId":303925,"journal":{"name":"2022 V International Conference on High Technology for Sustainable Development (HiTech)","volume":"413 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128987087","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Design of a New Version of a System for Intelligent Agriculture 一种新型智能农业系统的设计
2022 V International Conference on High Technology for Sustainable Development (HiTech) Pub Date : 2022-10-06 DOI: 10.1109/HiTech56937.2022.10145541
Stanyo V. Kolev
{"title":"Design of a New Version of a System for Intelligent Agriculture","authors":"Stanyo V. Kolev","doi":"10.1109/HiTech56937.2022.10145541","DOIUrl":"https://doi.org/10.1109/HiTech56937.2022.10145541","url":null,"abstract":"This article proposes a new model of agricultural automation system, including a meteorological station. Precision agriculture, also called automated agriculture according to the specifics of the site, is a new technology that allows producers to adequately manage arable land depending on spatially differentiated information. It is an innovative, technologically and information-based, intelligent approach to reducing costs in agriculture, increasing yields and crop quality, as well as effective control of plant diseases.","PeriodicalId":303925,"journal":{"name":"2022 V International Conference on High Technology for Sustainable Development (HiTech)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123529019","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Changes of copper losses during the service of distribution transformers 配电变压器使用过程中铜损的变化
2022 V International Conference on High Technology for Sustainable Development (HiTech) Pub Date : 2022-10-06 DOI: 10.1109/HiTech56937.2022.10145551
Velichko Atanasov, Dimo Stoilov, N. Nikolov
{"title":"Changes of copper losses during the service of distribution transformers","authors":"Velichko Atanasov, Dimo Stoilov, N. Nikolov","doi":"10.1109/HiTech56937.2022.10145551","DOIUrl":"https://doi.org/10.1109/HiTech56937.2022.10145551","url":null,"abstract":"This paper is part of a series of articles concerning the changes of losses in transformers as result of extended exploitation. The paper discusses and analyses the obtained loss values of 199 pcs. network transformers after a long service life. The aftermath obtained evidently represent an raise in the measured costs an electrical energy the tabulated values. The factors that affect the increased losses are illustrated for the two main types of transformer coil, according to the shape of the conductor, which are respectively introduces in operation in the period up to 1999 and beyond until 2022. The augmentation of losses over a period of 5 years r% are calculated according to the least squares model. Through the statistical values collected over the years, a method for determining the losses in copper is presented and approximating mathematical function is given. The presented analysis demonstrates a good precision of the model.","PeriodicalId":303925,"journal":{"name":"2022 V International Conference on High Technology for Sustainable Development (HiTech)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124233127","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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