Al-Bahir Journal for Engineering and Pure Sciences最新文献_第7页

Optimizing Locations and Sizes of Asphalt Concrete Plants in Karbala, Iraq 优化伊拉克卡尔巴拉沥青混凝土厂的位置和规模

Al-Bahir Journal for Engineering and Pure Sciences Pub Date : 2023-03-04 DOI: 10.55810/2313-0083.1017

Ghayath Ali, Sawsan R Mohammad, Alaa M. Abdulhussein

引用次数: 0

Carissa carandas L. fruit mediated in vitro synthesis of silver nanoparticles and their antioxidant and antibacterial activities 红桃果实介导纳米银的体外合成及其抗氧化和抗菌活性研究

Al-Bahir Journal for Engineering and Pure Sciences Pub Date : 2023-02-26 DOI: 10.55810/2313-0083.1019

Azharuddin B. Daphedar, Tejashwini Basavaprabhu, Viashnavi Nilagar, Annapoorna Waddar

{"title":"Carissa carandas L. fruit mediated in vitro synthesis of silver nanoparticles and their antioxidant and antibacterial activities","authors":"Azharuddin B. Daphedar, Tejashwini Basavaprabhu, Viashnavi Nilagar, Annapoorna Waddar","doi":"10.55810/2313-0083.1019","DOIUrl":"https://doi.org/10.55810/2313-0083.1019","url":null,"abstract":"Currently, we synthesized silver nanoparticles (AgNPs) from the aqueous fruit extract of Carissa carandas L. and evaluated their antioxidant and antibacterial properties. The UV-visible spectra showed a characteristic absorption peak at 412 nm. The Fourier transform infrared (FTIR) spectroscopy exhibits intense peaks at 3430.23cm-1 and 1625.67cm-1 which indicates the involvement of flavonoids and other functional groups in the biosynthesis, capping, and stabilization of AgNPs. From XRD analysis, the average size of AgNPs was estimated to be 45nm. The biogenic AgNPs were spherical in shape and average size range between 10 to 95nm confirmed by HR-TEM analysis. The fabricated AgNPs by fruit extract were monitored for antioxidant activity using DPPH method. The fruit extract of AgNPs (IC50= 946.22μg/ml) had the highest antioxidant activity against standard ascorbic acid. The antibacterial activity was done using Staphylococcus aureus and Escherichia coli bacterial strains. It was found from the results that the bacterial strain S. aureus had the highest antibacterial activity when compared to E. coli and aqueous fruit extract. Thus, the present study exhibits synergistic antioxidant and antibacterial activity which may explore in future clinical treatment.","PeriodicalId":218143,"journal":{"name":"Al-Bahir Journal for Engineering and Pure Sciences","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136041893","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

Carissa carandas L. fruit mediated in vitro synthesis of silver nanoparticles and their antioxidant and antibacterial activities 红桃果实介导纳米银的体外合成及其抗氧化和抗菌活性研究

Al-Bahir Journal for Engineering and Pure Sciences Pub Date : 2023-02-26 DOI: 10.55810/2312-5721.1019

Azharuddin B. Daphedar, Tejashwini Basavaprabhu, Viashnavi Nilagar, Annapoorna Waddar

{"title":"Carissa carandas L. fruit mediated in vitro synthesis of silver nanoparticles and their antioxidant and antibacterial activities","authors":"Azharuddin B. Daphedar, Tejashwini Basavaprabhu, Viashnavi Nilagar, Annapoorna Waddar","doi":"10.55810/2312-5721.1019","DOIUrl":"https://doi.org/10.55810/2312-5721.1019","url":null,"abstract":"Currently, we synthesized silver nanoparticles (AgNPs) from the aqueous fruit extract of Carissa carandas L. and evaluated their antioxidant and antibacterial properties. The UV e visible spectra showed a characteristic absorption peak at 412 nm. The Fourier transform infrared (FTIR) spectroscopy exhibits intense peaks at 3430.23 cm ¡ 1 and 1625.67 cm ¡ 1 which indicates the involvement of ﬂ avonoids and other functional groups in the biosynthesis, capping, and stabilization of AgNPs. From XRD analysis, the average size of AgNPs was estimated to be 45 nm. The biogenic AgNPs were spherical in shape and average size range between 10 and 95 nm con ﬁ rmed by HR-TEM analysis. The fabricated AgNPs by fruit extract were monitored for antioxidant activity using DPPH method. The fruit extract of AgNPs (IC50 ¼ 946.22 m g/ml) had the highest antioxidant activity against standard ascorbic acid. The antibacterial activity was done using Staphylococcus aureus and Escherichia coli bacterial strains. It was found from the results that the bacterial strain S. aureus had the highest antibacterial activity when compared to E. coli and aqueous fruit extract. Thus, the present study exhibits synergistic antioxidant and antibacterial activity which may explore in future clinical treatment.","PeriodicalId":218143,"journal":{"name":"Al-Bahir Journal for Engineering and Pure Sciences","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115107783","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

Shatt Al-Arab River and the seawater intrusion: causes and solutions 阿拉伯河与海水入侵:原因与对策

Al-Bahir Journal for Engineering and Pure Sciences Pub Date : 2023-02-22 DOI: 10.55810/2312-5721.1018

H. Salman, Hamdiea Skheel Jazaa

{"title":"Shatt Al-Arab River and the seawater intrusion: causes and solutions","authors":"H. Salman, Hamdiea Skheel Jazaa","doi":"10.55810/2312-5721.1018","DOIUrl":"https://doi.org/10.55810/2312-5721.1018","url":null,"abstract":"The scarcity and pollution of water resources led to environmental deterioration in Iraq, where the water needs for agricultural purposes are estimated at about 51 billion m 3 annually to irrigate 11.3 million dunums and about 10 billion m 3 annually for social health needs and 5 billion m 3 annually for industrial, oil needs and electricity production. This paper addresses another factor exacerbating the crisis and posing another challenge to competition, which is pollution from seawater intrusion. Take the Shatt al e Arab as a case study. Shatt al e Arab is the main water source for the city of Basra in southern Iraq, where the Tigris River contributes (35%), the Euphrates River (24%), in addition to the sub-basins of the Karkheh River by (8%) and the Karun River by (33%) in its composition. The water supply in Shatt Al e Arab has signi ﬁ cantly decreased and losing over 50% of its water supply Due to the water control by the riparian countries is conducted either through rivers diversions (Iran model) or by building massive dams (Turkey model). This has caused severe deterioration in the water quality and quantity of Shatt al e Arab River, and has also allowed seawater to intrusion, which is known to harm the ecosystem and threaten the city and the region with an environmental disaster. Field data related to the salt ' s concentration at the population centers on Shatt al e Arab ' s path were collected as a measure of the salinity impact of the Gulf waters on it, and then solutions were proposed to get mitigate of this effect. This present paper will provide an environmental assessment based on real data analysis and propose practical solutions to mitigate the risk of water pollution.","PeriodicalId":218143,"journal":{"name":"Al-Bahir Journal for Engineering and Pure Sciences","volume":"76 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127351113","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

Shatt Al-Arab River and the seawater intrusion: causes and solutions 阿拉伯河与海水入侵:原因与对策

Al-Bahir Journal for Engineering and Pure Sciences Pub Date : 2023-02-22 DOI: 10.55810/2313-0083.1018

Havan H. Salman, Hamdiea Skheel Jazaa

{"title":"Shatt Al-Arab River and the seawater intrusion: causes and solutions","authors":"Havan H. Salman, Hamdiea Skheel Jazaa","doi":"10.55810/2313-0083.1018","DOIUrl":"https://doi.org/10.55810/2313-0083.1018","url":null,"abstract":". The scarcity and pollution of water resources led to environmental deterioration in Iraq, where the water needs for agricultural purposes are estimated at about 51 billion m3 annually to irrigate 11.3 million dunums and about 10 billion m3 annually for social health needs and 5 billion m3 annually for industrial, oil needs and electricity production. This paper addresses another factor exacerbating the crisis and posing another challenge to competition, which is pollution from seawater intrusion. Take the Shatt al-Arab as a case study. Shatt al-Arab is the main water source for the city of Basra in southern Iraq, where the Tigris River contributes (35%), the Euphrates River (24%), in addition to the sub-basins of the Karkheh River by (8%) and the Karun River by (33%) in its composition. The water supply in Shatt Al-Arab has significantly decreased and losing over 50% of its water supply Due to the water control by the riparian countries is conducted either through rivers diversions (Iran model) or by building massive dams (Turkey model). This has caused severe deterioration in the water quality and quantity of Shatt al-Arab River, and has also allowed seawater to intrusion, which is known to harm the ecosystem and threaten the city and the region with an environmental disaster. Field data related to the salt’s concentration at the population centers on Shatt al-Arab’s path were collected as a measure of the salinity impact of the Gulf waters on it, and then solutions were proposed to get mitigate of this effect. This present paper will provide an environmental assessment based on real data analysis and propose practical solutions to mitigate the risk of water pollution.","PeriodicalId":218143,"journal":{"name":"Al-Bahir Journal for Engineering and Pure Sciences","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136336064","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

Assessing the Impacts of Global Warming on Mangrove Plants Growth in Malaysia 评估全球变暖对马来西亚红树林植物生长的影响

Al-Bahir Journal for Engineering and Pure Sciences Pub Date : 2023-02-16 DOI: 10.55810/2313-0083.1013

Baseem Tamimi, Wan Juliana Wan Ahmad, Mohd Nizam Mohd Said, Che Radziah Che Mohd Zain

{"title":"Assessing the Impacts of Global Warming on Mangrove Plants Growth in Malaysia","authors":"Baseem Tamimi, Wan Juliana Wan Ahmad, Mohd Nizam Mohd Said, Che Radziah Che Mohd Zain","doi":"10.55810/2313-0083.1013","DOIUrl":"https://doi.org/10.55810/2313-0083.1013","url":null,"abstract":"Climate change issues have sparked intense debate around the world in recent years. Malaysia faces critical issues with global warming, which has changed the local climate, threatening critical ecosystems, including mangrove forests, and creating challenges in their habitat. This study was conducted to investigate the morphological and physiological attributes of the mangrove Rhizophora apiculata in response to air temperature for the selection of tree species that can adapt to climate change. The seedlings were grown in controlled growth chambers with temperatures, of 21,28, and 38°C, under elevated CO2 at 650 ppm for three months. The plants were watered with three liters of 28-ppt saline water every 48 hours. Thus, after two weeks, the mangrove plant samples recorded positive results for all parameters of high temperature. The differences in temperature resulted in significant differences and positive responses between elevated CO2 and decreased temperature, which led to the samples surviving for all parameters and the growth being very slow. However, when the temperature is raised, the result is negative, and almost all of the samples perish. These results suggested that the low level of photosynthetic capacity might be attributed to the decreased CO2 fixative reaction system and photosynthetic pigment contents. Additional physical and climatic factors have an impact on what determines the increase or decrease in R. apiculata growth.","PeriodicalId":218143,"journal":{"name":"Al-Bahir Journal for Engineering and Pure Sciences","volume":"114 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135538338","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

Assessing the Impacts of Global Warming on Mangrove Plants Growth in Malaysia 评估全球变暖对马来西亚红树林植物生长的影响

Al-Bahir Journal for Engineering and Pure Sciences Pub Date : 2023-02-16 DOI: 10.55810/2312-5721.1013

Baseem M. Tamimi, W. Ahmad, M. N. Said, C. Zain

引用次数: 0

Uranium concentrations in soil samples from the north of Basrah Governorate 巴士拉省北部土壤样本中的铀浓度

Al-Bahir Journal for Engineering and Pure Sciences Pub Date : 2023-02-03 DOI: 10.55810/2313-0083.1015

Thaer M. Salman, Mostafa A. Algrifi

引用次数: 0

Uranium concentrations in soil samples from the north of Basrah Governorate 巴士拉省北部土壤样本中的铀浓度

Al-Bahir Journal for Engineering and Pure Sciences Pub Date : 2023-02-03 DOI: 10.55810/2312-5721.1015

T. Salman, M. A. Algrifi

引用次数: 1

Biasing Estimator to Mitigate Multicollinearity in Linear Regression Model 缓解线性回归模型多重共线性的偏置估计

Al-Bahir Journal for Engineering and Pure Sciences Pub Date : 2023-01-27 DOI: 10.55810/2312-5721.1011

A. B. Badawaire, I. Dawoud, A. F. Lukman, V. Laoye, Arowolo Olatunji

引用次数: 0