Aswan University Journal of Sciences and Technology最新文献

Assessment of Electric Vehicle Charging On Distribution Transformer Aging, Aswan City as a Case Study 以阿斯旺市为例，评估电动汽车充电对配电变压器老化的影响

Aswan University Journal of Sciences and Technology Pub Date : 2024-06-01 DOI: 10.21608/aujst.2024.276166.1090

O. Abdel-Rahim, Mohamed Orabi, Mostafa Ali, Mahmoud Abdelwahab

{"title":"Assessment of Electric Vehicle Charging On Distribution Transformer Aging, Aswan City as a Case Study","authors":"O. Abdel-Rahim, Mohamed Orabi, Mostafa Ali, Mahmoud Abdelwahab","doi":"10.21608/aujst.2024.276166.1090","DOIUrl":"https://doi.org/10.21608/aujst.2024.276166.1090","url":null,"abstract":". The objective of this study is to assess the readiness of the distribution system in Aswan City, Egypt, to accommodate the increasing penetration of electric vehicles (EVs). The focus is on evaluating the potential overloading of the existing infrastructure, particularly transformers, and understanding the impact of EV charging patterns on the distribution system. This study specifically investigates the distribution system in Aswan City, which is known for its high temperatures, making it a challenging environment for EV operation. Real data from consumers and transformer statistics are used to simulate and analyze the impact of EVs on the distribution system. The study employs different scenarios to represent the variations in ambient temperature throughout the year, ranging from 48 degrees Celsius in summer to 11 degrees Celsius in winter. These scenarios are further categorized into daily, weekly, and annual loading scenarios, taking into account the charging patterns of EVs in different locations within Aswan City. The analysis of the distribution system reveals that the current infrastructure might face challenges with the anticipated increase in EV penetration. The study identifies potential overloading of old transformers due to the additional load imposed by EV charging. It highlights the need for rescaling and upgrading the distribution system to ensure its stability and avoid system collapse Aswan City's distribution system needs careful planning and modifications to accommodate the expected surge in EVs. The study emphasizes the importance of considering EV penetration when designing and operating distribution systems to prevent any disruptions in power supply. Upgrading the infrastructure and implementing smart grid technologies are crucial to effectively manage the growing number of EVs and ensure the sustainable integration of clean transportation into the electrical grid.","PeriodicalId":482679,"journal":{"name":"Aswan University Journal of Sciences and Technology","volume":"8 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141230299","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

Improving The Dynamic Performance of Two-area System Based Integration of RES 提高基于可再生能源集成的双区域系统的动态性能

Aswan University Journal of Sciences and Technology Pub Date : 2024-06-01 DOI: 10.21608/aujst.2024.270294.1083

Abdelaakher Bahnasawy, Sherif Ali

引用次数: 0

Effect of spraying chelated and nano microelements on growth and nutritional status of Zebda mango trees 喷洒螯合剂和纳米微量元素对泽布达芒果树生长和营养状况的影响

Aswan University Journal of Sciences and Technology Pub Date : 2024-06-01 DOI: 10.21608/aujst.2024.348158

Fatma elzhraa Abd elaziz, Abdel Aziz Abdel Rahman, Hussein Said, El-Hussien Hamad

{"title":"Effect of spraying chelated and nano microelements on growth and nutritional status of Zebda mango trees","authors":"Fatma elzhraa Abd elaziz, Abdel Aziz Abdel Rahman, Hussein Said, El-Hussien Hamad","doi":"10.21608/aujst.2024.348158","DOIUrl":"https://doi.org/10.21608/aujst.2024.348158","url":null,"abstract":"This study was performed during 2019, 2020 and 2021 seasons to examine the effect of nano versus chelated micronutrients (Fe, Zn, and Mn) on some growth aspects and the nutritional status of Zebda mango trees grown under Aswan region conditions. Zebda mango trees were sprayed three times during the season with nano micronutrients (Fe, Zn, and Mn) at 2.5, 5, 10 or 20 ppm or via chelated micronutrients at 25, 50 or 100 ppm. All growth aspects, namely shoot length and thickness, number of leaves per shoot, and leaf area, as well as leaf pigments and nutrients content, namely chlorophylls a, b, total chlorophylls, and total carotenoids, N, P, K, Mg, Fe, Zn, and Mn, were remarkably enhanced in response to spraying the trees with micronutrients (Fe, Zn, and Mn) in the chelated form at 25 to 100 ppm or via nano form at 2.5 to 20 ppm over the control treatment. Nano Fe, Zn and Mn micronutrients was superior than application of these nutrients in their normal form (chelated form) in improving the growth and nutritional status of Zebda mango trees. The maximum values were recorded when nano micronutrients (Fe, Zn, and Mn) were applied at 20 ppm.","PeriodicalId":482679,"journal":{"name":"Aswan University Journal of Sciences and Technology","volume":"23 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141234980","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

Influence of Legumes Flour on Physical and Sensory Attributes of Gluten-free Breads 豆类面粉对无麸质面包物理和感官特性的影响

Aswan University Journal of Sciences and Technology Pub Date : 2024-06-01 DOI: 10.21608/aujst.2024.272375.1088

Abdallah Abdel-Gawad, Mohamed Elghazali, Abdullah Elliby, Amna Osman

{"title":"Influence of Legumes Flour on Physical and Sensory Attributes of Gluten-free Breads","authors":"Abdallah Abdel-Gawad, Mohamed Elghazali, Abdullah Elliby, Amna Osman","doi":"10.21608/aujst.2024.272375.1088","DOIUrl":"https://doi.org/10.21608/aujst.2024.272375.1088","url":null,"abstract":"The aim of this investigation was incorporation of some legume flours into making of gluten-free pan bread (GFPB) and study their impact on the physical properties, staling rate and acceptability of such bread. Three types of legume flours namely : defatted soybean (DSB), sweet lupine (SL) and chickpea (CP) were used. The base formula (BF) consisted of 47.5 g rice flour, 47.5 g corn starch, mixed with constant amount of skim milk powder and xanthan gum (XG). The starchy formula (rice flour and corn flour) abbreviated as SF was partially replaced by 10, 20, and 30 g of any legume flour. The results of physical properties indicated that substitution 30g SF by that of CP flour gave highest specific volume of bread than the other gluten-free samples, while replacing 30g of DSB flour decrease significantly the specific volume. However, substitution of 30 g SF by equal amount of DSB flour gave the highest bread yield. Furthermore, substitution 10 g SF by the same amount of DSB flour showed the highest baking loss value. While this value significantly diminished when 20g SF substituted by equal proportion of DSB or SL flours as well as by mixture of 10g DSB and 10g SL. In addition, CP flour at level of 20g was characterized by the lowest significant firmness. Texture profile analysis (TPA) results indicated that hardness and chewiness increased, while resilience, cohesiveness, springiness and staling rate decreased with increasing DSB flour replacement. In contrast, hardness and chewiness significantly decreased at 20g CP flour.","PeriodicalId":482679,"journal":{"name":"Aswan University Journal of Sciences and Technology","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141230271","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

دراسة تقييمية للطرق الإرشادية المستخدمة في مشروع الاستثمارات الزراعية المستدامة وسبل المعيشة بوادي الصعايدة ووادي النقرة بمحافظة أسوان 对阿斯旺省 Wadi Saayda 和 Wadi Naqra 可持续农业投资和生计项目所使用推广方法的评估研究

Aswan University Journal of Sciences and Technology Pub Date : 2024-06-01 DOI: 10.21608/aujst.2024.271367.1086

Amna Mohamed

引用次数: 0

ADAM optimization for adaptive position control of a cart driven by an armature-controlled DC motor supported by the balloon effect 针对气球效应支持的电枢控制直流电机驱动的小车自适应位置控制的 ADAM 优化

Aswan University Journal of Sciences and Technology Pub Date : 2024-06-01 DOI: 10.21608/aujst.2024.275960.1091

M. Mohamed, Salem Alkhalaf, Tomonobu Senjyu, T. Mohamed, Ahmed Elnoby, A. Hemeida

{"title":"ADAM optimization for adaptive position control of a cart driven by an armature-controlled DC motor supported by the balloon effect","authors":"M. Mohamed, Salem Alkhalaf, Tomonobu Senjyu, T. Mohamed, Ahmed Elnoby, A. Hemeida","doi":"10.21608/aujst.2024.275960.1091","DOIUrl":"https://doi.org/10.21608/aujst.2024.275960.1091","url":null,"abstract":"This research introduces a new method for controlling the linear positioning of a car powered by a DC motor with armature control, focusing on enhancing the parameters of the controller that is used to control the position of the car. The study employs the ADAM (Adaptive Moment Estimation) optimization algorithm and integrates the Balloon effect (BE) to improve the traditional ADAM algorithm's response, particularly against external disturbances and changes in system parameters. The proposed method includes an objective function dependent on the altered controller gain values and the determined value of the motor ’s open -loop transfer function. The system's performance with the proposed controller is evaluated under various conditions, including step load disturbances and variations in motor parameters. Both simulation and experimental results validate that the ada ptive controller, utilizing the modified ADAM algorithm, significantly enhances the system’s performance, particularly in mitigating load disturbances and uncertainties in system parameters.","PeriodicalId":482679,"journal":{"name":"Aswan University Journal of Sciences and Technology","volume":"13 7","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141235426","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

spraying some microelements through nanotechnology on yield and fruit quality of zebda mango trees 通过纳米技术喷洒一些微量元素对泽布达芒果树产量和果实质量的影响

Aswan University Journal of Sciences and Technology Pub Date : 2024-06-01 DOI: 10.21608/aujst.2024.348159

Fatma elzhraa Abd elaziz, Abdel Aziz Abdel Rahman, Hussein Said, El-Hussien Hamad

引用次数: 0

Impact of Photovoltaic System Integration on Total Harmonic Distortion in IEEE 9-Bus System 光伏系统集成对 IEEE 9 总线系统总谐波失真的影响

Aswan University Journal of Sciences and Technology Pub Date : 2024-06-01 DOI: 10.21608/aujst.2024.280685.1099

Amany Mahmoud, Gaber Elsaady, Ali Yousef, El-Noby Ibrahim

{"title":"Impact of Photovoltaic System Integration on Total Harmonic Distortion in IEEE 9-Bus System","authors":"Amany Mahmoud, Gaber Elsaady, Ali Yousef, El-Noby Ibrahim","doi":"10.21608/aujst.2024.280685.1099","DOIUrl":"https://doi.org/10.21608/aujst.2024.280685.1099","url":null,"abstract":"This research paper investigates the influence of photovoltaic (PV) array location on power quality within the context of an IEEE 9-bus system. As the global energy landscape shifts towards distributed generation (DG) renewable energy systems, understanding the dynamic interactions between PV systems and power grids becomes increasingly crucial. The study addresses a notable gap by comprehensively examining the impact of PV array location on total harmonic distortion (THD) under varying penetration levels. Leveraging mathematical modeling techniques and utilizing the IEEE 9-bus system as a benchmark, the research conducts a series of case studies involving load variations and sequential connections of PV systems to different buses. The findings underscore the importance of strategic PV array placement in mitigating harmonic distortion and ensuring power quality in grid-connected systems. Overall, this study contributes insights to the evolving field of renewable energy integration, emphasizing the significance of thoughtful PV system placement for enhancing grid stability and performance.","PeriodicalId":482679,"journal":{"name":"Aswan University Journal of Sciences and Technology","volume":"9 13","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141228758","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

Effect of foliar spray of urea and Potassium Citrate on fruiting of Barhee Date palm 叶面喷施尿素和柠檬酸钾对巴希椰枣开花结果的影响

Aswan University Journal of Sciences and Technology Pub Date : 2024-04-06 DOI: 10.21608/aujst.2024.270513.1084

Doaa Fawaz, A. El-Salhy, Hussein Saeed, omar El-Harith

引用次数: 0

Genetic Analysis of Yield and Its Components in Diallel Crosses of Wheat (Triticum aestivum L.) under normal and Drought Condition 正常和干旱条件下小麦（Triticum aestivum L.）对映杂交种产量及其成分的遗传分析

Aswan University Journal of Sciences and Technology Pub Date : 2024-03-01 DOI: 10.21608/aujst.2024.337876

Mahmoud Mohamed, hussein Bakheit, Mohamed Taha, Mohamed Faraj

引用次数: 0