Al-Azhar Bulletin of Science最新文献_第2页

Petrology, Geochemistry And Mineralogy Of Alaskan Type Ultramafic-Mafic Intrusive Complexes: A Case Study Around Mikbi-Zayatit District, South Eastern Desert, Egypt 阿拉斯加型超基性-基性侵入杂岩的岩石地球化学和矿物学研究——以埃及东南部沙漠Mikbi-Zayatit地区为例

Al-Azhar Bulletin of Science Pub Date : 2023-01-01 DOI: 10.58675/2636-3305.1638

Omar A. Soliman, Hatem M. El-Desoky, Mahmoud M. El-Rahmany, Hamada M. El-Awny

{"title":"Petrology, Geochemistry And Mineralogy Of Alaskan Type Ultramafic-Mafic Intrusive Complexes: A Case Study Around Mikbi-Zayatit District, South Eastern Desert, Egypt","authors":"Omar A. Soliman, Hatem M. El-Desoky, Mahmoud M. El-Rahmany, Hamada M. El-Awny","doi":"10.58675/2636-3305.1638","DOIUrl":"https://doi.org/10.58675/2636-3305.1638","url":null,"abstract":"The present work deals with the field geology, petrography, geochemistry and mineralogy of Wadi Zayatit and Wadi Mikbi ultramafic-mafic intrusive complex, South Eastern Desert, Egypt. Based on the current geological maps, field observations, structural relationships, and previous works; the rocks that exposed in the study regions are dunites, peridotites, and gabbro. These rocks characterized by coarse-grained, dark greyish to whitish grey color, massive with lustric features and slightly deformed with low to moderate relief. The commonest of the accessory constituents is an oxide ore mineral of some kinds, the most frequent one is chromite, ilmenite, titano-magnetite and magnesio-ferrite. The petrographic descriptions of each rock unit of the studied layered ultramafic-mafic intrusion are recognized; dunites, serpentinized peridotites, and olivine gabbro. Petrographically, opaque minerals are found as coarse-grained, euhedral crystals dispersed throughout the mineral constituents and represented by titani-ferous magnetite and chromite. Titano-magnetite has high FeO and low TiO2. The Fe2O3 and TiO2 show increase with decrease in silica content (SiO2). These rock units have high contents of Ni (9767 ppm), Cr (7861ppm), and Co (1525 ppm). The clino-pyroxene and bulk-rock chemistry indicates strongly crystallization from orogenic hydrous tholeiitic to calc-alkaline magmatic affinity. These inferences suggest that their primary magma was derived from partial melting of a mantle wedge source that has suffered metasomatism in a subduction zone setting. Ore microscopy, XRD technique, and EDX microchemical analysis of representative mineralized samples of ultramafic-mafic intrusive complex identified chromite, ilmenite, titano-magnetite, magnesio-ferrite and clinochlore.","PeriodicalId":7687,"journal":{"name":"Al-Azhar Bulletin of Science","volume":"116 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136373725","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

Novel Technique In Production Of Pb (II)- Imprinted Polymers 生产铅(II)印迹聚合物的新技术

Al-Azhar Bulletin of Science Pub Date : 2023-01-01 DOI: 10.58675/2636-3305.1633

Ehab Mohammed, Mostafa M. Elsheikh, Adham A. El-Zomrawy, Farag A. Ahmed

引用次数: 0

BAYESIAN AND NON-BAYESIAN ESTIMATION BASED ON STEP STRESS-PARTIALLY ACCELERATED LIFE TESTING FOR ODD GENERALIZED NADRAJAH HAGHIGHI EXPONENTIAL DISTRIBUTION 基于阶跃应力部分加速寿命试验的奇异广义nadrajah haghighi指数分布贝叶斯和非贝叶斯估计

Al-Azhar Bulletin of Science Pub Date : 2023-01-01 DOI: 10.58675/2636-3305.1652

Sarah Mohammad Behairy, Neama Taher Al-Sayed

引用次数: 0

Detoxification of Hexavalent Chromium Using Biofilm Forming Paenochrobactrum pullorum Isolated from Tannery Wastewater Effluents 制革废水中白纹青杆菌生物膜脱毒研究

Al-Azhar Bulletin of Science Pub Date : 2023-01-01 DOI: 10.58675/2636-3305.1642

Mohamad Mohamad Elshabrawy, Ahmed Ibrahim Labena, Said Elsayed Desouky, Mohammed Gamal Barghoth, Mohamed Salah Azab

{"title":"Detoxification of Hexavalent Chromium Using Biofilm Forming Paenochrobactrum pullorum Isolated from Tannery Wastewater Effluents","authors":"Mohamad Mohamad Elshabrawy, Ahmed Ibrahim Labena, Said Elsayed Desouky, Mohammed Gamal Barghoth, Mohamed Salah Azab","doi":"10.58675/2636-3305.1642","DOIUrl":"https://doi.org/10.58675/2636-3305.1642","url":null,"abstract":"Bioremediation for wastewater using microbes that can detoxify the harmful effects of Cr-VI is concerned. Ninety-two isolates were collected from tannery effluents and screened based on their abilities to remediate hexavalent chromium using LB agar media supplemented by K2Cr2O7 as a source for Cr-VI. Out of the total isolates, 44 isolates can grow at 200 ppm of CR-VI, while 7, 6, 21, 11, and 3 isolates showed growth at concentrations of 400, 600, 800, 1000, and 1200 ppm of Cr-VI, respectively. Furthermore, determination of Cr-VI reduction efficiency for isolates was performed using 1,5-diphenylcarbazide (DPC) method, and the highest reduction efficiency (70.6%) was achieved by isolate 16R. This isolate was identified genetically based on the 16S rRNA gene with a higher similarity of 99.83% to Paenochrobactrum pullorum, and the genetic tree relationship was constructed. The optimization process was conducted to obtain the optimal reduction conditions, including contact time, pH, temperature, inoculum size, and Cr-VI concentration, using the One Factor at a Time (OFAT) method. The highest chromium reduction efficiency increased to 92.5% after optimization for the most potent isolate at pH 9, temperature 30-35°C, and inoculum size 3-4 ml after 5 days of incubation; biofilm formation was also represented. This study is the first to prove the chromium-reducing characteristic of this strain, along with its ability to form a biofilm, which strongly enhances the use of this strain in reduction and biological treatment processes in wastewater treatment contaminated with Cr-VI.","PeriodicalId":7687,"journal":{"name":"Al-Azhar Bulletin of Science","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135007068","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

Identification of Identical Bands and Energy Staggering Phenomena in Superdeformed Nuclei in A=190 Mass Region in the Framework of a Novel Proposed Simple Formula 在一个新提出的简单公式框架下，A=190质量区超变形核的同带和能量交错现象的识别

Al-Azhar Bulletin of Science Pub Date : 2023-01-01 DOI: 10.58675/2636-3305.1653

Farid.A. Elmanakely, Gamal.S.M. Ahmed, Shimaa Abdelfattah, Ali. M. Khalaf

{"title":"Identification of Identical Bands and Energy Staggering Phenomena in Superdeformed Nuclei in A=190 Mass Region in the Framework of a Novel Proposed Simple Formula","authors":"Farid.A. Elmanakely, Gamal.S.M. Ahmed, Shimaa Abdelfattah, Ali. M. Khalaf","doi":"10.58675/2636-3305.1653","DOIUrl":"https://doi.org/10.58675/2636-3305.1653","url":null,"abstract":"A total of eleven superdeformed rotational bands (SDRB’s) in the A=190 mass zone were described in the framework of a novel proposed simple phenomenological rotational formula as outcome of collective model. The proposed model contains the original pure rotation limit AI (I+1) plus perturbation term proportionate to the cubic power of the spin I. The bandhead spins and the model parameters were selected by a best fit method, utilizing a computerized search program to obtain best match between experimental and calculated transition energies. The spin propositions are mostly consistent with the findings of earlier works. The calculated gamma-ray transition energies (Eγ) over spin (EGOS) in all SDRB’s agree well with experimental data. Detailed assessment of the dynamic moments of inertia with rotational frequency is surveyed in details which proves to be quite helpful for understanding the SDRB’s properties such as identical bands (IB’s). Four pairs namely: 191Hg (SD2, SD3), 193Hg(SD3, SD4),194Hg(SD2, SD3) and 193Pb(SD3, SD4) are investigated as signature partners which exhibit △I=1 staggering effects their transition energies. We looked at this staggering by taking into account parameters that describe the variance between average transitions I+2 → I → I-2 and the I+1 → I-1 energies in its signature partner and a staggering parameter depends on the dipole transition energies connecting the two signature partners with that quadrupole transition energies. Large amplitude staggering is found. The bandhead moments of inertia of each signature partner pairs are found to be identical. Our calculations predicts the occurrence of △I = 2 staggering effects in 194Hg (SD1, SD2, SD3). This predict △I = 2 energy staggering has been inspected by computing parameter indicate the finite difference approximation to the fourth order derivative of that indicating energies. The phenomenon of IB’s is investigated for the nuclei 191Hg and 192Hg and their neighbors.","PeriodicalId":7687,"journal":{"name":"Al-Azhar Bulletin of Science","volume":"106 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135102489","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

Geoelectric Evaluation of Soil Foundation Utilizing Electrical Resistivity Tomography at West Gulf of Suez, Al-Ain Al Sokhna, Egypt 埃及Al- ain Al- Sokhna西苏伊士湾土壤地基电阻率层析成像地电评价

Al-Azhar Bulletin of Science Pub Date : 2023-01-01 DOI: 10.58675/2636-3305.1635

Mahmoud Zayed

{"title":"Geoelectric Evaluation of Soil Foundation Utilizing Electrical Resistivity Tomography at West Gulf of Suez, Al-Ain Al Sokhna, Egypt","authors":"Mahmoud Zayed","doi":"10.58675/2636-3305.1635","DOIUrl":"https://doi.org/10.58675/2636-3305.1635","url":null,"abstract":"To evaluate the subsurface layers and geological structures for construction in one of the tourist areas in Egypt, the geoelectrical survey was used, represented by the 2D Electrical Resistivity Tomography (ERT). The geoelectrical survey includes 16 ERT profiles that have been conducted by using the Winner electrode array with twenty electrodes connected to a multi-core cable. The electrode spacing (a) varies between 4 and 6 meters to investigate a depth of around twenty meters, and the length of the ERT profiles varies from 76 to 114 meters depending on the electrode spacing difference and the field's available space. Through the geoelectric results that are confirmed by drilling of six boreholes, five geoelectric layers were identified, in addition to six faults inferred from the geoelectrical results. These faults are concentrated in the north of the research area. Shale and shaly-sand layers were among the examined geoelectric layers that were found on a small scale in the research region. Because of the major impact that these layers have on buildings, it was advised that the required engineering solutions be developed for these layers.","PeriodicalId":7687,"journal":{"name":"Al-Azhar Bulletin of Science","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135007298","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

A NUMERICAL APPROACH TO SOLVE THE INITIAL-VALUE PROBLEM OF TWO-BODY WITH UNIVERSAL VARIABLE 具有通用变量的二体初值问题的数值求解方法

Al-Azhar Bulletin of Science Pub Date : 2023-01-01 DOI: 10.58675/2636-3305.1640

Ahmed B. Yassen, Waleed N. Ahmed, Ahmed H. Ibrahim, Abdelaziz A. Bakry, Hany R. Dwidar

引用次数: 0

Soft Topological Notions Via Molodtsov Model 基于Molodtsov模型的软拓扑概念

Al-Azhar Bulletin of Science Pub Date : 2023-01-01 DOI: 10.58675/2636-3305.1648

A.A. Nasef, A.I. Aggour, A. Fathy, S.M. Darwesh

引用次数: 0

Green Synthesis Of Zinc Oxide Nanoparticles: Characterization, Organic Dye Degradation And Evaluation Of Their Antibacterial Activity 绿色合成氧化锌纳米颗粒:表征、有机染料降解及其抗菌活性评价

Al-Azhar Bulletin of Science Pub Date : 2023-01-01 DOI: 10.58675/2636-3305.1650

Mona Khamis, Gamal A. Gouda, Adham M. Nagiub

{"title":"Green Synthesis Of Zinc Oxide Nanoparticles: Characterization, Organic Dye Degradation And Evaluation Of Their Antibacterial Activity","authors":"Mona Khamis, Gamal A. Gouda, Adham M. Nagiub","doi":"10.58675/2636-3305.1650","DOIUrl":"https://doi.org/10.58675/2636-3305.1650","url":null,"abstract":"The aim of this work is the green synthesis of zinc oxide nanoparticles (ZnO NPs) via red onion extract. The ZnO NPs wurtzite hexagonal structure was identified through X-ray diffraction (XRD) analysis, with an average crystallite size of 8.13 nm. The capping and stabilization of ZnO NPs biosynthesis were supported by an analysis of infrared spectra (FT-IR). The absorption peak at 374 nm with an energy bandgap of 3.32 eV was discovered via UV-Vis analysis. A morphological study was done by SEM and TEM techniques, and showed that spherical ZnO NPs with diameters ranging from 2.83 to 15.35 nm had formed. Using EDS, it was possible to identify the high purity, intensity, and crystalline width of zinc and oxygen. The removal rates of methylene blue (MB) by photocatalysis and adsorption were compared utilizing ZnO NPs. Under sunlight, the photodegradation of MB 10 mg/L has been examined. It was found that maximum decolorization efficiency happened after 120 minutes and a dose of 25 mg of ZnO NPs. The adsorption capacity (qm) was calculated by the Langmuir equation to be 10.8 mg/g. The kinetic analysis suggests the pseudo-second order model was followed during MB adsorption via the NPs. The findings showed that the photocatalytic and adsorption approaches removed the dye up to 95.2 % more efficiently than in earlier research. ZnO NPs exhibited better antibacterial action against E. coli than S. aureus bacteria when compared to a common antibiotic like Ciprofloxacin.","PeriodicalId":7687,"journal":{"name":"Al-Azhar Bulletin of Science","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135006792","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

Bio-insecticidal potentiality of chitinase extracted from Amycolatopsis orientalis A13 sp. nova actinomycete against Galleria mellonella 从东方Amycolatopsis orientalis A13 sp. nova放线菌中提取几丁质酶对mellonella的生物杀虫潜力

Al-Azhar Bulletin of Science Pub Date : 2023-01-01 DOI: 10.58675/2636-3305.1632

Hamada Hosney Elbadawy, Zeinab Khaled Abd El-Aziz, Azza Abdel-khalek Abdel-khalek, Abdel Naser Ahmed Kobisi, Mohamed El- Badry

{"title":"Bio-insecticidal potentiality of chitinase extracted from Amycolatopsis orientalis A13 sp. nova actinomycete against Galleria mellonella","authors":"Hamada Hosney Elbadawy, Zeinab Khaled Abd El-Aziz, Azza Abdel-khalek Abdel-khalek, Abdel Naser Ahmed Kobisi, Mohamed El- Badry","doi":"10.58675/2636-3305.1632","DOIUrl":"https://doi.org/10.58675/2636-3305.1632","url":null,"abstract":"Chitin is the outermost layer surrounding all arthropod’s bodies as the primary protective layer against any adverse conditions. Chitinase is a group of enzymes responsible for degrading the old chitin layer. The current study was conducted under laboratory conditions to evaluate the insecticidal potentiality of chitinase filtrate extracted from Amycolatopsis orientalis A13 sp. nova actinomycete against the 3rd and 5th larval instars of the greater wax moth, Galleria mellonella. A series of aqueous concentrations have been prepared (25, 50, 100, 150, and 200 µL/g) to carry out the current bio-assay experiment. The cumulative larval death percentages were concentration-dependent, i.e., the highest larval mortality (94.68%) got detected at the highest applied concentration (200 µL/g). LC50, LC90, and LC95 values of chitinase filtrate were recorded at 57.94, 187.82, and 262.14 after 37 days of exposure time, respectively. The obtained data also revealed that the higher the applied chitinase concentration, the longer the treated larvae and pupae duration. The calculated nutritional indices (Relative growth rate (RGR), Relative consumption rate (RCR), efficiency of conversion of ingested food to body substance (ECI), efficiency of digested food conversion (ECD%), and Approximate digestibility (A.D.) showed significant variation at the LC50 value. The results showed that such laboratory trials accredited the chitinase filtrate as a promising bio-agent. However, further studies should be conducted to prove its efficacy under semi-field and field conditions.","PeriodicalId":7687,"journal":{"name":"Al-Azhar Bulletin of Science","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136373943","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