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Optimal control of microgrid using ALO optimization MPPT with power quality enhancement 利用 ALO 优化 MPPT 优化微电网控制，提高电能质量
Pollack Periodica Pub Date : 2024-02-12 DOI: 10.1556/606.2023.00956
Farhat Afzah Samoon, Ikhlaq Hussain, S. J. Iqbal
{"title":"Optimal control of microgrid using ALO optimization MPPT with power quality enhancement","authors":"Farhat Afzah Samoon, Ikhlaq Hussain, S. J. Iqbal","doi":"10.1556/606.2023.00956","DOIUrl":"https://doi.org/10.1556/606.2023.00956","url":null,"abstract":"The paper presents a normalized, varying step size-based least mean square-based control for a standalone microgrid and Ant Lion optimization-based maximum power point tracking. This modified version of the incremental conductance algorithm addresses issues like slow dynamic response, fixed step size issues, and steady state oscillations. Comparative analysis with well-known techniques shows that Ant Lion optimizes the tracking of maximum power points more accurately, with fewer oscillations and increased efficiency. Power management and power quality are maintained through proposed adaptive voltage source converter control. The proposed voltage control shows better performance under various dynamic and steady conditions.","PeriodicalId":35003,"journal":{"name":"Pollack Periodica","volume":"52 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139784773","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
Optimal control of microgrid using ALO optimization MPPT with power quality enhancement 利用 ALO 优化 MPPT 优化微电网控制，提高电能质量
Pollack Periodica Pub Date : 2024-02-12 DOI: 10.1556/606.2023.00956
Farhat Afzah Samoon, Ikhlaq Hussain, S. J. Iqbal
{"title":"Optimal control of microgrid using ALO optimization MPPT with power quality enhancement","authors":"Farhat Afzah Samoon, Ikhlaq Hussain, S. J. Iqbal","doi":"10.1556/606.2023.00956","DOIUrl":"https://doi.org/10.1556/606.2023.00956","url":null,"abstract":"The paper presents a normalized, varying step size-based least mean square-based control for a standalone microgrid and Ant Lion optimization-based maximum power point tracking. This modified version of the incremental conductance algorithm addresses issues like slow dynamic response, fixed step size issues, and steady state oscillations. Comparative analysis with well-known techniques shows that Ant Lion optimizes the tracking of maximum power points more accurately, with fewer oscillations and increased efficiency. Power management and power quality are maintained through proposed adaptive voltage source converter control. The proposed voltage control shows better performance under various dynamic and steady conditions.","PeriodicalId":35003,"journal":{"name":"Pollack Periodica","volume":"58 45","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139844573","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 the effect of surface treatment on the mechanical properties of coating 研究表面处理对涂层机械性能的影响
Pollack Periodica Pub Date : 2024-02-12 DOI: 10.1556/606.2024.00955
Salman Khayoon Aldriasawi, Abbas Nasser Hasein, Ashham Muhammed Anead, Barhm Mohamad
{"title":"Investigation the effect of surface treatment on the mechanical properties of coating","authors":"Salman Khayoon Aldriasawi, Abbas Nasser Hasein, Ashham Muhammed Anead, Barhm Mohamad","doi":"10.1556/606.2024.00955","DOIUrl":"https://doi.org/10.1556/606.2024.00955","url":null,"abstract":"The study analyzed surface treatment's impact on mechanical properties of Fe-based amorphous coatings. Specimens underwent six-hour treatments at 670 and 770 °C using vacuum heat. Results revealed distinct mechanical features in the coating: Vickers hardness reached 755, scanning electron microscope images displayed glassy phases, showcasing good wear resistance and compressive residual stresses at around −55 MPa. A remarkable 122% increase in compressive residual stress was noted through combined vacuum heat treatment and sandblasting. Volume wear decreased from the initial 18 to 14 mm3 after treatment at 670 °C followed by sandblasting, indicating a 30% enhancement in wear resistance. Yet, using vacuum heat treatment at 770 °C negatively impacted the coating's properties.","PeriodicalId":35003,"journal":{"name":"Pollack Periodica","volume":"105 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139842005","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
Performance of sugarcane molasses in concrete under hot weather 高温天气下混凝土中甘蔗糖蜜的性能
Pollack Periodica Pub Date : 2024-02-12 DOI: 10.1556/606.2023.00904
Mahdi J. Hussein, Maryam H. Naser, Fatimah H. Naser, A. H. Almamoori, Mohammed L. Hussien
{"title":"Performance of sugarcane molasses in concrete under hot weather","authors":"Mahdi J. Hussein, Maryam H. Naser, Fatimah H. Naser, A. H. Almamoori, Mohammed L. Hussien","doi":"10.1556/606.2023.00904","DOIUrl":"https://doi.org/10.1556/606.2023.00904","url":null,"abstract":"The present research studies the effect of adding sugar factory waste sugarcane molasses as an alternative to chemical inhibitory additives manufactured on concrete cast during hot weather in the summer of Iraq. The current study includes a study of the setting time for cement paste and workability for fresh concrete and some mechanical properties of hardened concrete with sugarcane molasses using percentage 0–0.3% of cement weight. The study also included studying the value of pH of concrete to investigate the effect of sugarcane molasses on reinforced concrete. The results showed that the sugarcane molasses can be used by about 0.1% of cement weight for medium projects and between 0.1 and 0.2% for large projects. It was also found that the compression strength increased by about 11.5% and the indirect tensile strength increased by about 7.5 and 7.4% for splitting and flexural test, respectively for concrete mixtures containing 0.2% of sugarcane molasses.","PeriodicalId":35003,"journal":{"name":"Pollack Periodica","volume":"39 16","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139783250","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
Designing for health: A study of architecturally oriented models of public space 为健康而设计：以建筑为导向的公共空间模式研究
Pollack Periodica Pub Date : 2024-02-07 DOI: 10.1556/606.2023.00938
Kangwei Tu, Andras Reith
{"title":"Designing for health: A study of architecturally oriented models of public space","authors":"Kangwei Tu, Andras Reith","doi":"10.1556/606.2023.00938","DOIUrl":"https://doi.org/10.1556/606.2023.00938","url":null,"abstract":"In the post-pandemic period, cities are committed to creating healthier and more healing urban environments. In high-density urban environments, urban complexes are increasingly assuming the function of enriching the external space and activating the vitality of cities, and their architecturally oriented public spaces have great potential for the promotion of residents' health. However, current research on public space and health has focused on green spaces and neighborhoods, and has not yet systematically sorted out the pathways that influence how building-oriented public space can contribute to health. In order to fill the gap, this study attempt to establish a model of health-promoting architecturally oriented public space, which can provide a reference for the similar projects.","PeriodicalId":35003,"journal":{"name":"Pollack Periodica","volume":"5 16","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139795428","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 effect of moisture content on the mechanical properties of wood structure 含水率对木结构机械性能的影响
Pollack Periodica Pub Date : 2024-02-07 DOI: 10.1556/606.2023.00917
Mohammad Kherais, Anikó Csébfalvi, Adél Len, Attila Fülöp, Judit Pál-Schreiner
{"title":"The effect of moisture content on the mechanical properties of wood structure","authors":"Mohammad Kherais, Anikó Csébfalvi, Adél Len, Attila Fülöp, Judit Pál-Schreiner","doi":"10.1556/606.2023.00917","DOIUrl":"https://doi.org/10.1556/606.2023.00917","url":null,"abstract":"In the last two decades, the utilization of timber in construction has gained increasing attention among researchers and sustainable building designers. Therefore, studies of climate impact on timber structures have been conducted, many of them focusing on the moisture content caused changes in timber. In the present study, four-point bending tests have been performed on three testing groups, containing 30 samples each. The first group has been tested under its natural conditions, while the second and the third groups were fully saturated with water. The third group was glazed with a protection material. The results show the changes in the modulus of elasticity and the modulus of rupture caused by the moisture content increase. In the same time the material behavior changed from brittle to semi-ductile or ductile for some samples.","PeriodicalId":35003,"journal":{"name":"Pollack Periodica","volume":"30 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139797581","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 flood hydrographs based on scaled flood data using vine copulas 使用藤蔓共生公式，根据缩放的洪水数据设计洪水水文图
Pollack Periodica Pub Date : 2024-02-07 DOI: 10.1556/606.2023.00827
Anna Liová, R. Výleta, K. Hlavčová, S. Kohnová, T. Bacigál, Jana Poórová, J. Szolgay
{"title":"Design flood hydrographs based on scaled flood data using vine copulas","authors":"Anna Liová, R. Výleta, K. Hlavčová, S. Kohnová, T. Bacigál, Jana Poórová, J. Szolgay","doi":"10.1556/606.2023.00827","DOIUrl":"https://doi.org/10.1556/606.2023.00827","url":null,"abstract":"Design flood hydrographs are often used to project safe and cost-effective hydraulic structures. This study proposes a system based on a combination of empirical and statistical approaches for constructing synthetic design flood hydrographs, that practitioners can easily apply. The system uses scaled observed seasonal flood hydrographs and respects the dependence structure among the flood peaks, volumes, and durations deduced from the set of seasonal flood hydrographs observed. The method was developed and tested based on data from the Horné Orešany reservoir in Slovakia.","PeriodicalId":35003,"journal":{"name":"Pollack Periodica","volume":"36 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139856512","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 effect of moisture content on the mechanical properties of wood structure 含水率对木结构机械性能的影响
Pollack Periodica Pub Date : 2024-02-07 DOI: 10.1556/606.2023.00917
Mohammad Kherais, Anikó Csébfalvi, Adél Len, Attila Fülöp, Judit Pál-Schreiner
{"title":"The effect of moisture content on the mechanical properties of wood structure","authors":"Mohammad Kherais, Anikó Csébfalvi, Adél Len, Attila Fülöp, Judit Pál-Schreiner","doi":"10.1556/606.2023.00917","DOIUrl":"https://doi.org/10.1556/606.2023.00917","url":null,"abstract":"In the last two decades, the utilization of timber in construction has gained increasing attention among researchers and sustainable building designers. Therefore, studies of climate impact on timber structures have been conducted, many of them focusing on the moisture content caused changes in timber. In the present study, four-point bending tests have been performed on three testing groups, containing 30 samples each. The first group has been tested under its natural conditions, while the second and the third groups were fully saturated with water. The third group was glazed with a protection material. The results show the changes in the modulus of elasticity and the modulus of rupture caused by the moisture content increase. In the same time the material behavior changed from brittle to semi-ductile or ductile for some samples.","PeriodicalId":35003,"journal":{"name":"Pollack Periodica","volume":"272 11","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139857767","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
Designing for health: A study of architecturally oriented models of public space 为健康而设计：以建筑为导向的公共空间模式研究
Pollack Periodica Pub Date : 2024-02-07 DOI: 10.1556/606.2023.00938
Kangwei Tu, Andras Reith
{"title":"Designing for health: A study of architecturally oriented models of public space","authors":"Kangwei Tu, Andras Reith","doi":"10.1556/606.2023.00938","DOIUrl":"https://doi.org/10.1556/606.2023.00938","url":null,"abstract":"In the post-pandemic period, cities are committed to creating healthier and more healing urban environments. In high-density urban environments, urban complexes are increasingly assuming the function of enriching the external space and activating the vitality of cities, and their architecturally oriented public spaces have great potential for the promotion of residents' health. However, current research on public space and health has focused on green spaces and neighborhoods, and has not yet systematically sorted out the pathways that influence how building-oriented public space can contribute to health. In order to fill the gap, this study attempt to establish a model of health-promoting architecturally oriented public space, which can provide a reference for the similar projects.","PeriodicalId":35003,"journal":{"name":"Pollack Periodica","volume":"10 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139855498","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
Experimental study of failure of glulam-concrete composite beams 胶合梁-混凝土复合梁失效实验研究
Pollack Periodica Pub Date : 2024-02-07 DOI: 10.1556/606.2023.00946
Tamás Juhász, Yishi Lee, Rose Holtzman, J. Balogh
{"title":"Experimental study of failure of glulam-concrete composite beams","authors":"Tamás Juhász, Yishi Lee, Rose Holtzman, J. Balogh","doi":"10.1556/606.2023.00946","DOIUrl":"https://doi.org/10.1556/606.2023.00946","url":null,"abstract":"This paper is dedicated to the memory of Dr. Miklós Iványi, who instilled in the authors an appreciation for experimental investigations, which are foundational to understanding material and structural behavior. Timber-concrete composite structures are increasingly adopted for new buildings due to their favorable sustainability parameters and the increased availability of cross laminated timber. For larger spans, however, solid timber floors lead to higher timber volumes and the use of glulam beams may become necessary for a more efficient use of wood. This paper presents laboratory tests of glulam-concrete composite beams and is the first in a series of two papers on investigating the associated failure mechanisms. Three full-scale glulam-concrete beam specimens were studied. The glulam and concrete are monolithically interconnected using a continuous layer of adhesive. Shear reinforcement was added to the glulam beams to allow for failure mode control. Static load tests to failure were conducted along with acoustic emission monitoring to track the progression of the failure. The results indicate that the shear reinforcement of the glulam layer affects the load capacity of the composite beam through shifting the failure from a shear to a tension failure mode. Similar glulam-concrete beams can enable larger span applications for buildings and bridges while maintaining an attractive sustainability performance.","PeriodicalId":35003,"journal":{"name":"Pollack Periodica","volume":"17 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139854345","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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