2020 IEEE 61th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON)最新文献_第9页

Review of 3D Printing Technologies and Considerations on Their Use in Orthopedy 3D打印技术综述及其在骨科中的应用

2020 IEEE 61th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON) Pub Date : 2020-11-05 DOI: 10.1109/RTUCON51174.2020.9316483

Vlads Vladinovskis

{"title":"Review of 3D Printing Technologies and Considerations on Their Use in Orthopedy","authors":"Vlads Vladinovskis","doi":"10.1109/RTUCON51174.2020.9316483","DOIUrl":"https://doi.org/10.1109/RTUCON51174.2020.9316483","url":null,"abstract":"Objectives. 3D printing has become a mainstream manufacturing technology and can provide printing with different materials such as plastics, resins, powders, and other polymers. The goal of this review is to observe most popular additive manufacturing techniques and choose most suitable techniques for medical orthopedic purposes. Methods. In this review is compiled various publications and reviews about 3D printing techniques to make a choice and decisions about most suitable technique for medical orthopedic purposes. Results. 3D printing technology is highly grown in last years and has significantly improved all printing parameters. Most suitable technology to produce medical part and structures is SLA and FDM techniques. Significance. Right now, 3D printing has a significant place in manufacturing industries and especially in medicine, where dental and orthopedic parts is needed to be produced in accordance with each person demands. Although, existing techniques is complex and not perfect and may be improved and upgraded in the future to provide best experience of the 3D printing.","PeriodicalId":332414,"journal":{"name":"2020 IEEE 61th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON)","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123647817","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: 1

District Heating Simulation Model Development to Solve Optimization Problems in the Market Conditions 解决市场条件下优化问题的区域供热仿真模型开发

2020 IEEE 61th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON) Pub Date : 2020-11-05 DOI: 10.1109/RTUCON51174.2020.9316597

Aleksandrs Soročins, J. Nagla, V. Žentiņš

{"title":"District Heating Simulation Model Development to Solve Optimization Problems in the Market Conditions","authors":"Aleksandrs Soročins, J. Nagla, V. Žentiņš","doi":"10.1109/RTUCON51174.2020.9316597","DOIUrl":"https://doi.org/10.1109/RTUCON51174.2020.9316597","url":null,"abstract":"The paper reviews recent attempts to create and use district heating simulation by district heat companies to solve district heat network optimization problems in the market conditions. Today's market conditions determine a higher quality product to the consumer at the lowest possible prices. In order to fulfill such requirements, it is necessary to make accurate calculations, planning, and realization in life. District heat network model conformity level to reality determines the precision of planning and implementation of optimization solutions of district heat network in life. Creating of working district heat network model for simulations is a complex task where many parameters should be taken into account. In this paper, the authors examine mistakes and solutions of case study - district heat network model structure and it's conformity to the real object (5 biggest Latvian cities). Based on case study authors developed and offered methodology that provides minimal investment solutions to correctly create a model with the level of accuracy where the model can be used for correct simulations to perform a feasibility study for new consumer connection, heat load distributing between heat sources and implementing energy efficient events in interchangeability of heat supply/power supply/gas supply systems. By using the authors methodology it is possible to develop the correct district heating simulation model, analyze the conformity of the developed model to life, and determine the level of accuracy to perform the feasibility study.","PeriodicalId":332414,"journal":{"name":"2020 IEEE 61th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON)","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114859336","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: 2

Analysis of magnetohydrodynamic generator driven by thermoacoustic engine for deep Space applications 深空热声发动机驱动磁流体动力发生器分析

2020 IEEE 61th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON) Pub Date : 2020-11-05 DOI: 10.1109/RTUCON51174.2020.9316584

A. Brēķis, A. Alemany, J. Freibergs

引用次数: 1

Climate Education: Challenges of Climate Change and Energy Policies 气候教育:气候变化和能源政策的挑战

2020 IEEE 61th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON) Pub Date : 2020-11-05 DOI: 10.1109/RTUCON51174.2020.9316561

A. Patlins, J. Caiko, N. Kunicina, A. Zhiravetska, V. Riashchenko

引用次数: 2

Optimization free of algorithm-specific control parameters for Power System Stabilizer tuning 无算法控制参数的电力系统稳定器整定优化

2020 IEEE 61th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON) Pub Date : 2020-11-05 DOI: 10.1109/RTUCON51174.2020.9316612

M. Gonzalez, F. R. Segundo Sevilla, P. Korba

引用次数: 0

Selection of the initial state and duration of the planning period in the tasks of managing energy storage systems 在储能系统管理任务中，规划周期初始状态和时间段的选择

2020 IEEE 61th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON) Pub Date : 2020-11-05 DOI: 10.1109/RTUCON51174.2020.9316613

R. Petrichenko, L. Petrichenko, K. Baltputnis, A. Sauhats, S. Gudzius, Aivaras Slivikas

{"title":"Selection of the initial state and duration of the planning period in the tasks of managing energy storage systems","authors":"R. Petrichenko, L. Petrichenko, K. Baltputnis, A. Sauhats, S. Gudzius, Aivaras Slivikas","doi":"10.1109/RTUCON51174.2020.9316613","DOIUrl":"https://doi.org/10.1109/RTUCON51174.2020.9316613","url":null,"abstract":"The large-scale use of renewable energy sources and combined heat and power plants and the unstable, poorly controlled nature of consumption aggravate the problem of energy storage. When designing and operating storage plants, the task is to ensure their profitability. Usually optimization tasks are formulated with the goal of maximizing profits. When solving these problems, significant difficulties may arise, since in the general case they are nonlinear, stochastic, multistage and contain a large number of decision and state variables. This article is devoted to the problem of ensuring acceptable accuracy and time spent on maximizing profits of pumped storage hydropower plants. Based on an analysis based on the data from a real power plant, Nord Pool electricity price records and mixed integer linear programming, the dependence of the optimisation results on the initial state of the reservoirs and the duration of the planning period is shown. The results can be used both when controlling real stations and at the stage of their feasibility study.","PeriodicalId":332414,"journal":{"name":"2020 IEEE 61th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON)","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130196233","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: 1

Advanced practices: web technologies in the educational process and science 先进的实践:网络技术在教育过程和科学

2020 IEEE 61th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON) Pub Date : 2020-11-05 DOI: 10.1109/RTUCON51174.2020.9316567

Y. Chaiko, N. Kunicina, A. Patlins, A. Zhiravetska

引用次数: 4

District Heating Simulation Model Development to Solve Optimization Problems in the Market Conditions 解决市场条件下优化问题的区域供热仿真模型开发

2020 IEEE 61th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON) Pub Date : 2020-11-05 DOI: 10.1109/RTUCON51174.2020.9316575

Aleksandrs Soročins, J. Nagla, V. Žentiņš

{"title":"District Heating Simulation Model Development to Solve Optimization Problems in the Market Conditions","authors":"Aleksandrs Soročins, J. Nagla, V. Žentiņš","doi":"10.1109/RTUCON51174.2020.9316575","DOIUrl":"https://doi.org/10.1109/RTUCON51174.2020.9316575","url":null,"abstract":"The paper reviews recent attempts to create and use district heating simulation by district heat companies to solve district heat network optimization problems in the market conditions. Today's market conditions determine a higher quality product to the consumer at the lowest possible prices. In order to fulfill such requirements, it is necessary to make accurate calculations, planning, and realization in life. District heat network model conformity level to reality determines the precision of planning and implementation of optimization solutions of district heat network in life. Creating of working district heat network model for simulations is a complex task where many parameters should be taken into account. In this paper, the authors examine mistakes and solutions of case study - district heat network model structure and it's conformity to the real object (5 biggest Latvian cities). Based on case study authors developed and offered methodology that provides minimal investment solutions to correctly create a model with the level of accuracy where the model can be used for correct simulations to perform a feasibility study for new consumer connection, heat load distributing between heat sources and implementing energy efficient events in interchangeability of heat supply/power supply/gas supply systems. By using the authors methodology it is possible to develop the correct district heating simulation model, analyze the conformity of the developed model to life, and determine the level of accuracy to perform the feasibility study.","PeriodicalId":332414,"journal":{"name":"2020 IEEE 61th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON)","volume":"95 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134014533","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

Detection of inter-turn short-circuit on a Doubly Fed Induction Machine with D-Q axis representation 基于D-Q轴表示的双馈感应电机匝间短路检测

2020 IEEE 61th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON) Pub Date : 2020-11-05 DOI: 10.1109/RTUCON51174.2020.9316591

H. Bilal, N. Héraud, Eric Jean Roy Sambatra

引用次数: 4

EDUTECH - Good Practices in Cooperation between Schools and Academia Attracting Candidates for Technical Education 教育科技-学校与学术界合作的良好做法吸引技术教育候选人

2020 IEEE 61th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON) Pub Date : 2020-11-05 DOI: 10.1109/RTUCON51174.2020.9316614

A. Rassõlkin, T. Vaimann, K. Kudelina, M. Stępień, Kévin Berger

引用次数: 0