Pub Date : 2018-05-30DOI: 10.5604/01.3001.0012.0697
V. Mladenov, S. Kirilov
The main idea of the present research is to propose a new nonlinear ionic drift memristor model suitable for computer simulations of memristor elements for different voltages. For this purpose, a modified Biolek window function with a voltage-dependent exponent is applied. The proposed modified memristor model is based on Biolek model and due to this and to the use of a voltage-dependent positive integer exponent in the modified Biolek window function it has a new improved property - changing the model nonlinearity extent dependent on the integer exponent in accordance with the memristor voltage. Several computer simulations were made for soft-switching and hard-switching modes and also for pseudo-sinusoidal alternating voltage with an exponentially increasing amplitude and the respective basic important time diagrams, state-flux and i-v relationships are established.
{"title":"ADVANCED MEMRISTOR MODEL WITH A MODIFIED BIOLEK WINDOW AND A VOLTAGE-DEPENDENT VARIABLE EXPONENT","authors":"V. Mladenov, S. Kirilov","doi":"10.5604/01.3001.0012.0697","DOIUrl":"https://doi.org/10.5604/01.3001.0012.0697","url":null,"abstract":"The main idea of the present research is to propose a new nonlinear ionic drift memristor model suitable for computer simulations of memristor elements for different voltages. For this purpose, a modified Biolek window function with a voltage-dependent exponent is applied. The proposed modified memristor model is based on Biolek model and due to this and to the use of a voltage-dependent positive integer exponent in the modified Biolek window function it has a new improved property - changing the model nonlinearity extent dependent on the integer exponent in accordance with the memristor voltage. Several computer simulations were made for soft-switching and hard-switching modes and also for pseudo-sinusoidal alternating voltage with an exponentially increasing amplitude and the respective basic important time diagrams, state-flux and i-v relationships are established.\u0000\u0000","PeriodicalId":53131,"journal":{"name":"Informatyka Automatyka Pomiary w Gospodarce i Ochronie Srodowiska","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71272844","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}
Pub Date : 2018-05-30DOI: 10.5604/01.3001.0012.0716
Bartłomiej Mroczek, Karol Fatyga
The paper proposes the use of auxiliary equipment in the low voltage network: an on-load tap changer and a static synchronous compensator (STATCOM) to improve the quality of energy supply to end users. As part of the research, a section of medium and low voltage power grid was modelled using Matlab & Simulink software, which was tested in three scenarios. The first scenario presents the operation of the power grid with the on-load tap changer installed in the transformer block. The second scenario uses the STATCOM for local reactive power compensation. Additionally, the third scenario is the combined work of the on-load tap-changer along with the STATCOM. According to the authors, the method discussed does not bring the expected results in the area of voltage quality improvement, indicating that further research is required, including tests with energy storage.
{"title":"PROPOSAL FOR MANAGING ELECTRIC ENERGY QUALITY IN THE LV GRID USING ON-LOAD TAP CHANGER WITH A STATIC SYNCHRONOUS COMPENSATOR","authors":"Bartłomiej Mroczek, Karol Fatyga","doi":"10.5604/01.3001.0012.0716","DOIUrl":"https://doi.org/10.5604/01.3001.0012.0716","url":null,"abstract":"The paper proposes the use of auxiliary equipment in the low voltage network: an on-load tap changer and a static synchronous compensator (STATCOM) to improve the quality of energy supply to end users. As part of the research, a section of medium and low voltage power grid was modelled using Matlab & Simulink software, which was tested in three scenarios. The first scenario presents the operation of the power grid with the on-load tap changer installed in the transformer block. The second scenario uses the STATCOM for local reactive power compensation. Additionally, the third scenario is the combined work of the on-load tap-changer along with the STATCOM. According to the authors, the method discussed does not bring the expected results in the area of voltage quality improvement, indicating that further research is required, including tests with energy storage.\u0000\u0000","PeriodicalId":53131,"journal":{"name":"Informatyka Automatyka Pomiary w Gospodarce i Ochronie Srodowiska","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71273158","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}
Pub Date : 2018-05-30DOI: 10.5604/01.3001.0012.0704
V. Mosorov, T. Panskyi, S. Biedroń
This paper presents the main definitions relating to dependability. Basic definitions including reliability, security, maintainability, etc. are described first. They are then supplemented by additional definitions, which address to the threats of dependability (faults, errors, failures). Overlapping dependability standards, renumbering and integration can cause uncertainty when using of a certain definition. For this purpose, authors present complemented fault taxonomy for fault-tolerant real-time systems to eliminate inconsistencies and to unify existing fault taxonomies.
{"title":"MODIFIED, COMPLEMENTED TAXONOMY OF FAULTS IN FAULT-TOLERANT REAL-TIME SYSTEMS","authors":"V. Mosorov, T. Panskyi, S. Biedroń","doi":"10.5604/01.3001.0012.0704","DOIUrl":"https://doi.org/10.5604/01.3001.0012.0704","url":null,"abstract":"This paper presents the main definitions relating to dependability. Basic definitions including reliability, security, maintainability, etc. are described first. They are then supplemented by additional definitions, which address to the threats of dependability (faults, errors, failures). Overlapping dependability standards, renumbering and integration can cause uncertainty when using of a certain definition. For this purpose, authors present complemented fault taxonomy for fault-tolerant real-time systems to eliminate inconsistencies and to unify existing fault taxonomies.\u0000\u0000","PeriodicalId":53131,"journal":{"name":"Informatyka Automatyka Pomiary w Gospodarce i Ochronie Srodowiska","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71273191","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}
Pub Date : 2018-05-30DOI: 10.5604/01.3001.0012.0703
L. Gumeniuk, V. Lotysh, Pavlo Gumeniuk
The program implementation of sorting algorithms is obtained. The program realization of complex for comparison of sorting algorithms is obtained. Using the obtained tools, an analysis of algorithms for sorting by speed was performed depending on the number of members of the data array.
{"title":"TOOLS FOR COMPARING THE RESULTS OF THE WORK OF SORTING ALGORITHMS","authors":"L. Gumeniuk, V. Lotysh, Pavlo Gumeniuk","doi":"10.5604/01.3001.0012.0703","DOIUrl":"https://doi.org/10.5604/01.3001.0012.0703","url":null,"abstract":"The program implementation of sorting algorithms is obtained. The program realization of complex for comparison of sorting algorithms is obtained. Using the obtained tools, an analysis of algorithms for sorting by speed was performed depending on the number of members of the data array.\u0000\u0000","PeriodicalId":53131,"journal":{"name":"Informatyka Automatyka Pomiary w Gospodarce i Ochronie Srodowiska","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71273039","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}
Pub Date : 2018-05-30DOI: 10.5604/01.3001.0012.0701
M. Jüttner, S. Grabmaier, Jonas Rohloff, D. Vögeli, W. Rucker, P. Göhner, M. Weyrich
Based on autonomous software agents capable of calculating individual numerical field problems, a distributed method for solving transient field problems is presented. The software agents are running on distributed resources connected via a network and represent a dynamic calculation environment. Communication and data exchange between multiple agents enables their collaboration and allows decisions based on distributed overall knowledge. As unique characteristics, no central unit influences the solution process at any time. The presented simulation example and its evaluated calculation process proves the method to benefit from redundant resources.
{"title":"A DISTRIBUTED METHOD FOR TRANSIENT SIMULATIONS THAT DYNAMICALLY CONSIDERS SUPPLEMENTARY RESULTS FROM AUTONOMOUS SOFTWARE AGENTS","authors":"M. Jüttner, S. Grabmaier, Jonas Rohloff, D. Vögeli, W. Rucker, P. Göhner, M. Weyrich","doi":"10.5604/01.3001.0012.0701","DOIUrl":"https://doi.org/10.5604/01.3001.0012.0701","url":null,"abstract":"Based on autonomous software agents capable of calculating individual numerical field problems, a distributed method for solving transient field problems is presented. The software agents are running on distributed resources connected via a network and represent a dynamic calculation environment. Communication and data exchange between multiple agents enables their collaboration and allows decisions based on distributed overall knowledge. As unique characteristics, no central unit influences the solution process at any time. The presented simulation example and its evaluated calculation process proves the method to benefit from redundant resources.\u0000\u0000","PeriodicalId":53131,"journal":{"name":"Informatyka Automatyka Pomiary w Gospodarce i Ochronie Srodowiska","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71272998","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}
Pub Date : 2018-05-30DOI: 10.5604/01.3001.0012.0707
T. Rymarczyk
In this work, there were implemented methods to analyze and segmentation medical images by using different kind of algorithms. The solution shows the architecture of the system collecting and analyzing data. There was tried to develop an algorithm for level set method applied to piecewise constant image segmentation. These algorithms are needed to identify arbitrary number of phases for the segmentation problem. With the use of modern algorithms, it can obtain a quicker diagnosis and automatically marking areas of the interest region in medical images.
{"title":"ANALYSIS MEDICAL AND STEREOSCOPIC IMAGES BY E-MEDICUS SYSTEM","authors":"T. Rymarczyk","doi":"10.5604/01.3001.0012.0707","DOIUrl":"https://doi.org/10.5604/01.3001.0012.0707","url":null,"abstract":"In this work, there were implemented methods to analyze and segmentation medical images by using different kind of algorithms. The solution shows the architecture of the system collecting and analyzing data. There was tried to develop an algorithm for level set method applied to piecewise constant image segmentation. These algorithms are needed to identify arbitrary number of phases for the segmentation problem. With the use of modern algorithms, it can obtain a quicker diagnosis and automatically marking areas of the interest region in medical images.\u0000\u0000","PeriodicalId":53131,"journal":{"name":"Informatyka Automatyka Pomiary w Gospodarce i Ochronie Srodowiska","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71273097","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}
Pub Date : 2018-05-30DOI: 10.5604/01.3001.0012.0717
Ł. Pater
Artykuł dotyczy sposobu wskazania rodzaju ruchu przy pomocy przetwarzania i analizy obrazu cyfrowego na przykładzie sekwencji przemieszczania się pyłu węglowego. Prezentowane podejście ma poszerzyć perspektywę zastosowania systemów wizyjnych w kontroli procesów spalania, podnosząc tym samym ich efektywność. Wyniki pokazały właściwe odzwierciedlenie rzeczywistego ruchu paliwa na dyskretnej powierzchni pól wektorowych przy zastosowaniu metody przepływu optycznego. Dołączenie metody numerycznej, do analizy pól wektorowych, pozwoliło wyznaczyć sześć rodzajów ruchu. Obserwacje, obejmujące fragmentu badanego zjawiska, wyczerpują wszystkie przypadki oceny przemieszczenia cząstek paliwa.
{"title":"OCENA RUCHU PALIWA W PROCESIE SPALANIA NA PODSTAWIE OBRAZU CYFROWEGO","authors":"Ł. Pater","doi":"10.5604/01.3001.0012.0717","DOIUrl":"https://doi.org/10.5604/01.3001.0012.0717","url":null,"abstract":"Artykuł dotyczy sposobu wskazania rodzaju ruchu przy pomocy przetwarzania i analizy obrazu cyfrowego na przykładzie sekwencji przemieszczania się pyłu węglowego. Prezentowane podejście ma poszerzyć perspektywę zastosowania systemów wizyjnych w kontroli procesów spalania, podnosząc tym samym ich efektywność. Wyniki pokazały właściwe odzwierciedlenie rzeczywistego ruchu paliwa na dyskretnej powierzchni pól wektorowych przy zastosowaniu metody przepływu optycznego. Dołączenie metody numerycznej, do analizy pól wektorowych, pozwoliło wyznaczyć sześć rodzajów ruchu. Obserwacje, obejmujące fragmentu badanego zjawiska, wyczerpują wszystkie przypadki oceny przemieszczenia cząstek paliwa.\u0000\u0000","PeriodicalId":53131,"journal":{"name":"Informatyka Automatyka Pomiary w Gospodarce i Ochronie Srodowiska","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71273177","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}
Pub Date : 2018-05-30DOI: 10.5604/01.3001.0012.0821
C. Merz, G. Kupris
The paper focuses on nonlinear analysis of high and low Q RF energy harvesting circuits. The analysis is made mathematically and by large signal simulation via Keysight Advanced Design System. The mathematical analysis of the nonlinear harvesting circuits is done by using the Galerkin method and the simulations are performed using the harmonic balance method, which is a special version of the Galerkin method.
{"title":"NONLINEAR ANALYSIS OF HIGH Q RADIO FREQUENCY ENERGY HARVESTING NETWORKS","authors":"C. Merz, G. Kupris","doi":"10.5604/01.3001.0012.0821","DOIUrl":"https://doi.org/10.5604/01.3001.0012.0821","url":null,"abstract":"The paper focuses on nonlinear analysis of high and low Q RF energy harvesting circuits. The analysis is made mathematically and by large signal simulation via Keysight Advanced Design System. The mathematical analysis of the nonlinear harvesting circuits is done by using the Galerkin method and the simulations are performed using the harmonic balance method, which is a special version of the Galerkin method.\u0000\u0000","PeriodicalId":53131,"journal":{"name":"Informatyka Automatyka Pomiary w Gospodarce i Ochronie Srodowiska","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47317609","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}
Pub Date : 2018-05-30DOI: 10.5604/01.3001.0012.0714
T. Zieliński, P. Kisała
The paper presents periodic structures in terms of metrological properties in the distinction for a fiber Bragg grating (FBG) with a constant and changeable period. The process of their formation and characteristics as well as applications in many areas have been described. On the basis of the literature, the results of research and measurements of measurable quantities such as temperature and stress made by periodic structures applied to the fiber of the optical fiber are presented. Analysis of the presented measurements allowed to mark the ranges and accuracy of measurements of individual applications.
{"title":"ANALYSIS OF METROLOGICAL PROPERTIES FIBER BRAGG GRATINGS WITH A CONSTANT AND VARIABLE PERIOD","authors":"T. Zieliński, P. Kisała","doi":"10.5604/01.3001.0012.0714","DOIUrl":"https://doi.org/10.5604/01.3001.0012.0714","url":null,"abstract":"The paper presents periodic structures in terms of metrological properties in the distinction for a fiber Bragg grating (FBG) with a constant and changeable period. The process of their formation and characteristics as well as applications in many areas have been described. On the basis of the literature, the results of research and measurements of measurable quantities such as temperature and stress made by periodic structures applied\u0000to the fiber of the optical fiber are presented. Analysis of the presented measurements allowed to mark the ranges and accuracy of measurements of individual applications.\u0000\u0000","PeriodicalId":53131,"journal":{"name":"Informatyka Automatyka Pomiary w Gospodarce i Ochronie Srodowiska","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48788749","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}
Pub Date : 2018-05-30DOI: 10.5604/01.3001.0012.0715
Karol Fatyga, Łukasz Kwaśny, Bartłomiej Stefańczak
This paper presents a comparison of the efficiency of two bidirectional DC/DC converters based on dual H-bridge topology. Tested converters were built using Si-based IGBT transistors and SiC-based MOSFETs. The results of the research are efficiency characteristics, taken from tests at the frequency range of 10÷60 kHz. Analysis of the results points to a massive advantage of the SiC-based design over the Si-based one.
{"title":"A COMPARISON STUDY OF THE FEATURES OF DC/DC SYSTEMS WITH SI IGBT AND SIC MOSFET TRANSISTORS","authors":"Karol Fatyga, Łukasz Kwaśny, Bartłomiej Stefańczak","doi":"10.5604/01.3001.0012.0715","DOIUrl":"https://doi.org/10.5604/01.3001.0012.0715","url":null,"abstract":"This paper presents a comparison of the efficiency of two bidirectional DC/DC converters based on dual H-bridge topology. Tested converters were built using Si-based IGBT transistors and SiC-based MOSFETs. The results of the research are efficiency characteristics, taken from tests at the frequency range of 10÷60 kHz. Analysis of the results points to a massive advantage of the SiC-based design over the Si-based one.\u0000\u0000","PeriodicalId":53131,"journal":{"name":"Informatyka Automatyka Pomiary w Gospodarce i Ochronie Srodowiska","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49103086","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：