Pub Date : 2024-07-20DOI: 10.21608/djs.2024.303815.1173
Omyma Ahmed Awadalla, abdelnaser M elsayed, Heba M elkholy, Eman Hasan Abd El-Zaher
{"title":"In vitro, Antifungal Efficacy of Some Trichoderma spp. Against Fusarium oxysporum f. sp betae Causing Wilt Disease of Sugar Beet Plant","authors":"Omyma Ahmed Awadalla, abdelnaser M elsayed, Heba M elkholy, Eman Hasan Abd El-Zaher","doi":"10.21608/djs.2024.303815.1173","DOIUrl":"https://doi.org/10.21608/djs.2024.303815.1173","url":null,"abstract":"","PeriodicalId":11368,"journal":{"name":"Delta Journal of Science","volume":"39 8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141819619","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}
Pub Date : 2024-07-20DOI: 10.21608/djs.2024.303876.1174
Omnia Osama Mohamed, Marian N. Gerges, Abeer A. Alm-Eldeen, Alaa GM Osman
{"title":"Aquaponic system is a safe alternative for fish production.","authors":"Omnia Osama Mohamed, Marian N. Gerges, Abeer A. Alm-Eldeen, Alaa GM Osman","doi":"10.21608/djs.2024.303876.1174","DOIUrl":"https://doi.org/10.21608/djs.2024.303876.1174","url":null,"abstract":"","PeriodicalId":11368,"journal":{"name":"Delta Journal of Science","volume":"113 12","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141820426","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}
Pub Date : 2024-07-09DOI: 10.21608/djs.2024.162658.1038
Abouamama Sidaoui
{"title":"Isolation and Phenotypic Characterization of a New Actinomycete Strain of Coconut and Study of Their Inhibitory Potential of Phytopathogenic Fungi","authors":"Abouamama Sidaoui","doi":"10.21608/djs.2024.162658.1038","DOIUrl":"https://doi.org/10.21608/djs.2024.162658.1038","url":null,"abstract":"","PeriodicalId":11368,"journal":{"name":"Delta Journal of Science","volume":"43 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141663696","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}
Pub Date : 2024-07-06DOI: 10.21608/djs.2024.287141.1163
Safia Mohamed Dawod, Tarek M. Mohamed, Wafaa M. Ibrahim, Maha M. Salem
{"title":"Role of Cisplatin as Inhibitor for Ehrlich Ascites Adenocarcinoma Proliferation","authors":"Safia Mohamed Dawod, Tarek M. Mohamed, Wafaa M. Ibrahim, Maha M. Salem","doi":"10.21608/djs.2024.287141.1163","DOIUrl":"https://doi.org/10.21608/djs.2024.287141.1163","url":null,"abstract":"","PeriodicalId":11368,"journal":{"name":"Delta Journal of Science","volume":" 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141673118","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}
Pub Date : 2024-07-01DOI: 10.21608/djs.2024.283104.1162
Khaled Mohamed, Ahmed Abd Elhameed, Dina Elbassiouny, Shimaa Waheed El Din
This paper aims to investigate the role of surrounding parameters on the collapsing of convective air bubbles in the biological stage of wastewater treatment. The diffusion field is assumed to be quasi-static. The mathematical model describing the current problem consists of diffusion, Fick's, and Laplace equations. The system is solved analytically to obtain the evolution formulae of both the collapsing bubble radius and concentration distribution around the collapsing bubble in terms of surrounding parameters. The validity of this model is examined by applying the resultant evolution equation to fit earlier experimental data of the collapsing of an air bubble in water, and good agreement with this experimental data is achieved. The results show that increasing values of the diffusion coefficient, initial concentration difference, wastewater temperature, and initial void fraction result in a decrease in the collapsing time of the air bubble in wastewater whereas increasing values of the surface tension result in an increase of collapsing time. In addition, the collapsing of the air bubble is sensitive to small changes in the values of the diffusivity coefficient and initial concentration difference which is affected by the rate of oxygen consumption by the microorganisms during the biological stage of wastewater treatment. On the contrary, the collapsing process is slightly affected by changes in the surface tension values.
{"title":"Collapse of Air Bubbles as Oxygen Provider in Wastewater Aeration Tank","authors":"Khaled Mohamed, Ahmed Abd Elhameed, Dina Elbassiouny, Shimaa Waheed El Din","doi":"10.21608/djs.2024.283104.1162","DOIUrl":"https://doi.org/10.21608/djs.2024.283104.1162","url":null,"abstract":"This paper aims to investigate the role of surrounding parameters on the collapsing of convective air bubbles in the biological stage of wastewater treatment. The diffusion field is assumed to be quasi-static. The mathematical model describing the current problem consists of diffusion, Fick's, and Laplace equations. The system is solved analytically to obtain the evolution formulae of both the collapsing bubble radius and concentration distribution around the collapsing bubble in terms of surrounding parameters. The validity of this model is examined by applying the resultant evolution equation to fit earlier experimental data of the collapsing of an air bubble in water, and good agreement with this experimental data is achieved. The results show that increasing values of the diffusion coefficient, initial concentration difference, wastewater temperature, and initial void fraction result in a decrease in the collapsing time of the air bubble in wastewater whereas increasing values of the surface tension result in an increase of collapsing time. In addition, the collapsing of the air bubble is sensitive to small changes in the values of the diffusivity coefficient and initial concentration difference which is affected by the rate of oxygen consumption by the microorganisms during the biological stage of wastewater treatment. On the contrary, the collapsing process is slightly affected by changes in the surface tension values.","PeriodicalId":11368,"journal":{"name":"Delta Journal of Science","volume":"134 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141695161","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}
Pub Date : 2024-06-10DOI: 10.21608/djs.2024.287214.1164
F. Salama, H. Attiya
{"title":"Bee Snake Graph and Its Total Edge Irregularity Strength","authors":"F. Salama, H. Attiya","doi":"10.21608/djs.2024.287214.1164","DOIUrl":"https://doi.org/10.21608/djs.2024.287214.1164","url":null,"abstract":"","PeriodicalId":11368,"journal":{"name":"Delta Journal of Science","volume":" 537","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141364070","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}
Pub Date : 2024-03-23DOI: 10.21608/djs.2024.271404.1152
Eman Alshehery, Eman Alaidarous, Rania Alharbey, Muhammad Zahoor Raja
{"title":"Design of backpropagation learning algorithm for MHD mixed convective Prandtl nanofluid flow with activation energy","authors":"Eman Alshehery, Eman Alaidarous, Rania Alharbey, Muhammad Zahoor Raja","doi":"10.21608/djs.2024.271404.1152","DOIUrl":"https://doi.org/10.21608/djs.2024.271404.1152","url":null,"abstract":"","PeriodicalId":11368,"journal":{"name":"Delta Journal of Science","volume":" 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140387024","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}
Pub Date : 2024-01-01DOI: 10.21608/djs.2024.256058.1142
Walaa Ali, M. Fagelnour
{"title":"Burial and thermal history simulation of the Middle Jurassic source rocks in Matruh basin, north Western Desert, Egypt","authors":"Walaa Ali, M. Fagelnour","doi":"10.21608/djs.2024.256058.1142","DOIUrl":"https://doi.org/10.21608/djs.2024.256058.1142","url":null,"abstract":"","PeriodicalId":11368,"journal":{"name":"Delta Journal of Science","volume":"51 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139394738","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}
Pub Date : 2024-01-01DOI: 10.21608/djs.2024.241133.1134
hala abdelbaki
{"title":"Numerical and Qualitative Study of SICQR Epidemic Model.","authors":"hala abdelbaki","doi":"10.21608/djs.2024.241133.1134","DOIUrl":"https://doi.org/10.21608/djs.2024.241133.1134","url":null,"abstract":"","PeriodicalId":11368,"journal":{"name":"Delta Journal of Science","volume":"17 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140520025","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}
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