Advances in Science and Technology最新文献_第5页

Methodology for Assessing the Degree of Aging Overhead Power Transmission Lines of EES 评估 EES 架空输电线路老化程度的方法

Advances in Science and Technology Pub Date : 2024-04-12 DOI: 10.4028/p-wbbj9g

Aydin Muradaliyev

{"title":"Methodology for Assessing the Degree of Aging Overhead Power Transmission Lines of EES","authors":"Aydin Muradaliyev","doi":"10.4028/p-wbbj9g","DOIUrl":"https://doi.org/10.4028/p-wbbj9g","url":null,"abstract":"The main objects of the EES, the service life of which exceeded the standard value, are increasingly beginning to determine the efficiency of work every year. This manifested in an increase in the number of automatic emergency shutdowns, the number and complexity of emergency-hazardous defects. Organization of operation, maintenance and repair of these facilities recommended carried out according to their technical condition. And since the technical condition determines the reliability and safety of the object, it is therefore recommended to take these properties into account more fully. These recommendations in the EES carried out at a high quality level, intuitively, according to operating experience.In this article, as distributed objects of continuous operation, overhead power transmission lines (OPTL) with a voltage of 110 kV and higher, the service life of which exceeds the standard value, are considered. The issues of quantifying the degree of significance of the aging problem for a set OPTL, their classification and methodology for assessing the difference in the degree of aging when classifying them according to given types of characteristics are considered. The methodology and algorithm of methodological support for the management of the EES and network enterprises during the organization of operation, maintenance and repair, been developed.","PeriodicalId":511802,"journal":{"name":"Advances in Science and Technology","volume":"14 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140710152","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

Classification of Susbsea Construction Vessels and Evaluation of Study Effectiveness 浅海施工船的分类和研究效果评估

Advances in Science and Technology Pub Date : 2024-04-12 DOI: 10.4028/p-dawl6i

Rasim Bashirov, O. Abdullayev

引用次数: 0

Anti-Vibration Foundation for the Machines Used in the Oil and Gas Industry 石油和天然气行业所用机器的防震基础

Advances in Science and Technology Pub Date : 2024-04-12 DOI: 10.4028/p-8lxeua

Valeh I. Bakhshali

引用次数: 0

Verification of the Adequacy of the Created Work Cycle Calculation Model of Marine Diesel Engine 验证所创建的船用柴油机工作循环计算模型的适当性

Advances in Science and Technology Pub Date : 2024-04-12 DOI: 10.4028/p-m5xjqi

Akif Ismayilov, Alivahid Aliyev

引用次数: 0

Analysis of Operating Benefits of Modern Wind Turbines 现代风力涡轮机的运行效益分析

Advances in Science and Technology Pub Date : 2024-04-12 DOI: 10.4028/p-9qrq49

Laman Hasanova, Khikmat Aliyev, Gulnar Sydykova

引用次数: 0

Requirements Definition, Modeling, and Simulation of Control Units of an Electrohydraulic Power Amplifier 电液功率放大器控制单元的需求定义、建模和仿真

Advances in Science and Technology Pub Date : 2024-04-12 DOI: 10.4028/p-c1jzf9

Denis Korobatov, Alexey Baturin, Dmitry V. Ardashev, Heyran Abbasova

{"title":"Requirements Definition, Modeling, and Simulation of Control Units of an Electrohydraulic Power Amplifier","authors":"Denis Korobatov, Alexey Baturin, Dmitry V. Ardashev, Heyran Abbasova","doi":"10.4028/p-c1jzf9","DOIUrl":"https://doi.org/10.4028/p-c1jzf9","url":null,"abstract":"The paper discusses the basic requirements and provides calculations and results of modeling and simulation for an electronic control unit of an electrohydraulic power amplifier. It is shown that data exchange interfaces have the greatest influence on the choice of the element base for the implementation of the control unit. In particular, the implementation of the Ethernet interface may cause the greatest difficulty. The organization of the transport and logical levels of exchange in Ethernet is much more complex than, for example, in the RS-485 interface widely used in automation systems. The results of modeling the power part of the control unit, made according to the bridge scheme, using algorithms for pulse voltage regulation on the armature winding of an electromechanical converter are presented. A step-up voltage converter has been introduced into the power unit, controlled synchronously with a bridge converter to reduce the influence of electromagnetic radiation on the information components of the control unit. A dynamic model of a tracking system for regulating the position of the spool is investigated.","PeriodicalId":511802,"journal":{"name":"Advances in Science and Technology","volume":"42 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140710904","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

Investigation for Multi-Layer CuAl8 and Multi-Material (CuAl8-Mild Steel) Deposition via WAAM Process 通过 WAAM 工艺进行多层 CuAl8 和多材料（CuAl8-软钢）沉积的研究

Advances in Science and Technology Pub Date : 2024-04-12 DOI: 10.4028/p-nie7o5

Abid Shah, R. Aliyev, Henning Zeidler, Stefan Krinke

引用次数: 0

29th Concrete Days 第 29 届混凝土日

Advances in Science and Technology Pub Date : 2024-04-10 DOI: 10.4028/b-49qxnq

Šárka Nenadálová, Petra Johová, Kateřina Hamplová

引用次数: 0

Developing Training from Industrial Design to Innovative Design in Vietnam 在越南开展从工业设计到创新设计的培训

Advances in Science and Technology Pub Date : 2024-03-29 DOI: 10.4028/p-7vschd

Duong Thi Kim Duc, Le Tieu Thanh

引用次数: 0

Lightness and Hue Dependencies of Color Difference Thresholds in Textiles under High-Illuminance Conditions 高照度条件下纺织品色差阈值的明度和色相依赖性

Advances in Science and Technology Pub Date : 2024-03-29 DOI: 10.4028/p-v2ywtq

Youngjoo Chae, Sung-Woo Moon

{"title":"Lightness and Hue Dependencies of Color Difference Thresholds in Textiles under High-Illuminance Conditions","authors":"Youngjoo Chae, Sung-Woo Moon","doi":"10.4028/p-v2ywtq","DOIUrl":"https://doi.org/10.4028/p-v2ywtq","url":null,"abstract":"In this study, the color difference thresholds of the human eye for textiles in a wide range of colors under high-illuminance conditions were examined. As the high-illuminance conditions, 2856 K-2000 lux and 6504 K-2000 lux, which are in the range of illumination conditions used in spaces that highlight products such as show windows, were used. It was observed that people cannot generally perceive color differences in textiles smaller than 4.29 ΔE*ab. Also, the color difference threshold varied depending on the color center and lightness of the textiles observed. Color differences in red and blue colored textiles were easier to be perceived than other colored textiles, while those in yellow colored textiles were the hardest to be perceived. It was also found that people are generally better able to discriminate colors between dark textiles than between light textiles. Meanwhile, the correlated color temperature of the illuminant, that is, whether it was a warm-white (2856 K) illuminant or a cool-white (6504 K) illuminant, did not significantly affect people’s perception of color differences in textiles under high illuminance conditions.","PeriodicalId":511802,"journal":{"name":"Advances in Science and Technology","volume":"78 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140366567","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