Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska最新文献_第3页

SOME MORE ON LOGARITHMIC SINGULARITY INTEGRATION IN BOUNDARY ELEMENT METOD 关于边界元法中对数奇点积分的更多信息

Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska Pub Date : 2024-03-31 DOI: 10.35784/iapgos.5864

T. Rymarczyk, J. Sikora

引用次数: 0

RUNNING A WORKFLOW WITHOUT WORKFLOWS: A BASIC ALGORITHM FOR DYNAMICALLY CONSTRUCTING AND TRAVERSING AN IMPLIED DIRECTED ACYCLIC GRAPH IN A NON-DETERMINISTIC ENVIRONMENT 在没有工作流的情况下运行工作流：在非确定性环境中动态构建和遍历隐含有向无环图的基本算法

Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska Pub Date : 2024-03-31 DOI: 10.35784/iapgos.5858

Fedir Smilianets, Oleksii Finogenov

{"title":"RUNNING A WORKFLOW WITHOUT WORKFLOWS: A BASIC ALGORITHM FOR DYNAMICALLY CONSTRUCTING AND TRAVERSING AN IMPLIED DIRECTED ACYCLIC GRAPH IN A NON-DETERMINISTIC ENVIRONMENT","authors":"Fedir Smilianets, Oleksii Finogenov","doi":"10.35784/iapgos.5858","DOIUrl":"https://doi.org/10.35784/iapgos.5858","url":null,"abstract":"This paper introduces a novel algorithm for dynamically constructing and traversing Directed Acyclic Graphs (DAGs) in workflow systems, particularly targeting distributed computation and data processing domains. Traditional workflow management systems rely on explicitly defined, rigid DAGs, which can be cumbersome to maintain, especially in response to frequent changes or updates in the system. Our proposed algorithm circumvents the need for explicit DAG construction, instead opting for a dynamic approach that iteratively builds and executes the workflow based on available data and operations, through a combination of entities like Data Kinds, Operators, and Data Units, the algorithm implicitly forms a DAG, thereby simplifying the process of workflow management. We demonstrate the algorithm’s functionality and assess its performance through a series of tests in a simulated environment. The paper discusses the implications of this approach, especially focusing on cycle avoidance and computational complexity, and suggests future enhancements and potential applications.","PeriodicalId":504633,"journal":{"name":"Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140358754","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

OPTYMALIZACJA DRZEWA DECYZYJNEGO OPARTA NA ALGORYTMIE GENETYCZNYM DO WYKRYWANIA DEMENCJI POPRZEZ ANALIZĘ MRI 基于遗传算法的决策树优化，通过核磁共振成像分析检测痴呆症

Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska Pub Date : 2024-03-31 DOI: 10.35784/iapgos.5775

Govada Anuradha, Harini Davu, Muthyalanaidu Karri

{"title":"OPTYMALIZACJA DRZEWA DECYZYJNEGO OPARTA NA ALGORYTMIE GENETYCZNYM DO WYKRYWANIA DEMENCJI POPRZEZ ANALIZĘ MRI","authors":"Govada Anuradha, Harini Davu, Muthyalanaidu Karri","doi":"10.35784/iapgos.5775","DOIUrl":"https://doi.org/10.35784/iapgos.5775","url":null,"abstract":"Dementia is a devastating neurological disorder that affects millions of people globally, causing progressive decline in cognitive function and daily living activities. Early and precise detection of dementia is critical for optimal dementia therapy and management however, the diagnosis of dementia is often challenging due to the complexity of the disease and the wide range of symptoms that patients may exhibit. Machine learning approaches are becoming progressively more prevalent in the realm of image processing, particularly for disease prediction. These algorithms can learn to recognize distinctive characteristics and patterns that are suggestive of specific diseases by analyzing images from multiple medical imaging modalities. This paper aims to develop and optimize a decision tree algorithm for dementia detection using the OASIS dataset, which comprises a large collection of MRI images and associated clinical data. This approach involves using a genetic algorithm to optimize the decision tree model for maximum accuracy and effectiveness. The ultimate goal of the paper is to develop an effective, non-invasive diagnostic tool for early and accurate detection of dementia. The GA-based decision tree, as proposed, exhibits strong performance compared to alternative models, boasting an impressive accuracy rate of 96.67% according to experimental results.","PeriodicalId":504633,"journal":{"name":"Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140360359","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

MICROWAVE MIXER ON RECTANGULAR WAVEGUIDES PARTIALLY FILLED BY DIELECTRIC 部分由介质填充的矩形波导上的微波混频器

Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska Pub Date : 2023-12-20 DOI: 10.35784/iapgos.5355

Vitaly Pochernyaev, N. Syvkova, Mariia Mahomedova

{"title":"MICROWAVE MIXER ON RECTANGULAR WAVEGUIDES PARTIALLY FILLED BY DIELECTRIC","authors":"Vitaly Pochernyaev, N. Syvkova, Mariia Mahomedova","doi":"10.35784/iapgos.5355","DOIUrl":"https://doi.org/10.35784/iapgos.5355","url":null,"abstract":"The article investigates and calculates the characteristics of microwave mixers on rectangular waveguides partially filled by dielectric. Presents diagrams of promising combined microwave radio engineering systems - two options for constructing mobile digital troposcatter-radiorelay stations, the antenna-feeder paths of which are implemented on rectangular waveguides partially filled by dielectric. At research of microwave mixers, suppression and the use of the mirror frequency are taken into account. The analysis of researches of microwave mixers is carried out. The design of a balanced-type microwave mixer based on rectangular waveguides partially filled by dielectric is developed. The mixer is used to convertion the microwave signal into an intermediate frequency signal. The signal conversion of the mixers takes place on the non-linear active resistance of the semiconductor diode. In article, an open nonlinear structure is used as such a diode. The following main parameters of microwave mixers are investigated: conversion losses, noise factor, operating frequency band, signal suppression at the mirror frequency. The conversion losses are determined for various mirror channel suppression conditions. Phase methods of mirror frequency suppression are considered, which are most suitable for the waveguide implementation of microwave mixers. A scheme of a microwave mixer of a balance type with a phase method for suppressing the mirror frequency is presented. The article notes that for significant suppression of the mirror frequency of more than 30 dB, a double frequency conversion mixer is used. A diagram of a slotted bridge based on rectangular waveguides partially filled by dielectric is presented. The dependences of the input impedance of the mixer, the impedance of the mixer at the intermediate frequency, the impedance of the mixer at the mirror frequency by the power of the local heterodyne are plotted.","PeriodicalId":504633,"journal":{"name":"Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139169133","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

ENVIRONMENTAL AND ECONOMIC ASSESSMENT OF THE LAND USE REGULATION EFFECTIVENESS 对土地使用法规有效性的环境和经济评估

Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska Pub Date : 2023-12-20 DOI: 10.35784/iapgos.5604

Oleksandr Harnaha, Nataliia B. Savina, Volodymyr Hrytsiuk

引用次数: 0

USE OF THE CDE ENVIRONMENT IN TEAM COLLABORATION IN BIM 在 BIM 的团队协作中使用 CDE 环境

Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska Pub Date : 2023-12-20 DOI: 10.35784/iapgos.4261

Andrzej Szymon Borkowski, Jakub Brożyna, Joanna Litwin, Weronika Rączka, Aleksandra Szporanowicz

引用次数: 0

AUTOMATIC ADJUSTMENT OF REACTIVE POWER BY FACTS DEVICES UNDER CONDITIONS OF VOLTAGE INSTABILITY IN THE ELECTRIC NETWORK 在电网电压不稳定的情况下，通过事实设备自动调节无功功率

Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska Pub Date : 2023-12-20 DOI: 10.35784/iapgos.5377

Mykhailo Burbelo, Oleksii Babenko, Yurii Loboda, Denys Lebed, Oleg K. Kolesnytskyj, Saule J. Rakhmetullina, Murat Mussabekov

{"title":"AUTOMATIC ADJUSTMENT OF REACTIVE POWER BY FACTS DEVICES UNDER CONDITIONS OF VOLTAGE INSTABILITY IN THE ELECTRIC NETWORK","authors":"Mykhailo Burbelo, Oleksii Babenko, Yurii Loboda, Denys Lebed, Oleg K. Kolesnytskyj, Saule J. Rakhmetullina, Murat Mussabekov","doi":"10.35784/iapgos.5377","DOIUrl":"https://doi.org/10.35784/iapgos.5377","url":null,"abstract":"This article describes the problem of automatic regulation of reactive power using electronic devices FACTS (Flexible AC Transmission Systems): static synchronous compensator (STATCOM) and unified power flow controller (UPFC). With the help of a complex writing form, the following are determined: voltages at the installation nodes of the FACTS device and loads, currents of loads, power sources and electronic compensators in case of voltage instability at the load node of the electrical network. Voltages and currents are determined using the node-voltage method. The task of STATCOM is partial or full compensation of reactive power. During the reduction of the voltage at the load node, the reactive power generated by the power source decreases. The STATCOM should partially or fully compensate for the reactive power imbalance as quickly as possible. However, at the same time, it is not possible to fully compensate for the voltage reduction. A series-parallel or parallel-series UPFC can be used to solve this problem. As a result of using the UPFC, it is possible to automatically raise the voltage level to acceptable values with the help of the UPFC series compensator. The analysis shows that the parallel-serial UPFC is characterized by the stability of operation. In the case of using a series-parallel UPFC, there are restrictions on the ability to adjust the imaginary voltage component of the series compensator, since the angle of the voltage vector changes, which causes a failure in the operation of the regulator of the parallel compensator UPFC.","PeriodicalId":504633,"journal":{"name":"Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139170011","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

ASYMPTOTICALLY OPTIMAL ALGORITHM FOR PROCESSING SIDE RADIATION SIGNALS FROM MONITOR SCREENS ON LIQUID CRYSTAL STRUCTURES 处理液晶显示器屏幕侧辐射信号的渐近最优算法

Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska Pub Date : 2023-12-20 DOI: 10.35784/iapgos.5586

Dmytro Yevgrafov, Yurii Yaremchuk

引用次数: 0

INTERACTION METHOD BETWEEN WEBVIEW OBJECTS IN HYBRID JAVA APPLICATIONS 混合 JAVA 应用程序中网络视图对象之间的交互方法

Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska Pub Date : 2023-12-20 DOI: 10.35784/iapgos.3734

Denys Ratov, O. Zakhozhai

引用次数: 0

THE EFFICIENCY AND RELIABILITY OF BACKEND TECHNOLOGIES: EXPRESS, DJANGO, AND SPRING BOOT 后端技术的效率和可靠性：Express、Django 和 Spring Boot

Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska Pub Date : 2023-12-20 DOI: 10.35784/iapgos.4279

Dominik Choma, Kinga Chwaleba, M. Dzieńkowski

{"title":"THE EFFICIENCY AND RELIABILITY OF BACKEND TECHNOLOGIES: EXPRESS, DJANGO, AND SPRING BOOT","authors":"Dominik Choma, Kinga Chwaleba, M. Dzieńkowski","doi":"10.35784/iapgos.4279","DOIUrl":"https://doi.org/10.35784/iapgos.4279","url":null,"abstract":"Increasing popularity of web applications has led to the development of many technologies that enable their production, both on the client and server side. This article attempts to compare three most popular server-side frameworks – Django, Spring Boot and Express. Each of the selected technologies is based on a different programming language. These frameworks were compared in terms of request processing time and reliability. Within the conducted research three backend applications handling HTTP requests were created, all of them using the same database consisting of employees’ data. Afterwards, a series of load tests was performed to determine levels of efficiency and reliability of created applications for various numbers of virtual users sending requests to the server at the same time. Five test cases with the following number of requests: 1000, 2000, 4000, 8000, and 16000 were planned and performed for each type of HTTP requests handled by the server simultaneously. Based on the obtained results, it was concluded that the Spring Boot framework was the best in terms of request processing time and high reliability. However, it was noted that for many test cases under extreme load, it had a significantly higher percentage of incorrectly processed requests compared to the Express application, even though the application was noticeably slower. The worst results were observed for Django because the test application created for this framework revealed the longest requests processing time and the highest error rate during processing requests out of the three tested applications. The performed studies helped to determine the efficiency and reliability of the tested technologies at various levels of load. Furthermore, the studies were crucial in obtaining knowledge about the evaluated frameworks as well as their properties and formulating conclusions that will be able to help the developers choose technologies before the implementation of their programming projects.","PeriodicalId":504633,"journal":{"name":"Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139169134","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