Electronic Journal of University of Aden for Basic and Applied Sciences最新文献

{"title":"EVALUATION OF NUCLEAR RADIATION SHIELDING BEHAVIOR AND STRUCTURE PROPERTIES OF NOVEL (B_2O_3-Na_2O-K_2O-xBi_2O_3) GLASSES","authors":"Dua'a Anis Taya, Adel A. M. Saeed, Emran Eisa Saleh","doi":"10.47372/ejua-ba.2023.4.296","DOIUrl":"https://doi.org/10.47372/ejua-ba.2023.4.296","url":null,"abstract":"It was studied in this research the nuclear radiation shielding behavior and structure properties of the four glass samples which were composed of (80-x) B2O3-10Na2O-10K2O-xBi2O3 (x=0, 15, 30, 45 mol%) and were prepared using the melt-quenching technique. The studied samples were symbolized as Bi0.0, Bi0.15, Bi0.30, and Bi0.45 according to the Bi2O3 content values. The nuclear shielding properties have been calculated by the Phy-X/PSD program in the photon energy from 0.015 to 15 MeV. The results indicated that the values of mass attenuation coefficient (MAC) ranged from 4.2 to 88.5 cm2/g, linear attenuation coefficient (LAC) values ranged from 8.99 to 429.99 cm-1, half-value layer (HVL) values decreased from 0.077 to 0.002 cm, tenth value layer (TVL) values decreased from 1.570 to 0.020 cm, mean free path (MFP) values decreased from 0.682 to 0.009 cm, effective atomic number (Zeff) values ranged from 12.9 to 77.5, effective electron density (Neff) values ranged from 5.00 × 1023 to 8.60×1023 electrons/g, atomic and electron cross-sections (ACS and ECS) values ranged from 1.09 × 10-22 to 7.98 × 10-21 cm2/g and from 8.47 × 10-24 to 1.03 × 10-22 cm2/g respectively. The effective neutron removal cross-section (ƩR) values for prepared samples were also calculated. The results indicated that the addition of bismuth oxide leads to an improvement in the nuclear shielding properties of the prepared glass and showed that the sample Bi0.45 has the best nuclear shielding properties than concrete and commercial glasses.","PeriodicalId":11552,"journal":{"name":"Electronic Journal of University of Aden for Basic and Applied Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139389044","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}

{"title":"تأثير الموسم على نسبة تصافي والاحشاء الداخلية المأكولة لفروج اللحمRoss","authors":"مازن ناصر علي ناصر, سوسن محمد عبدالرب الشعيبي","doi":"10.47372/ejua-ba.2023.4.303","DOIUrl":"https://doi.org/10.47372/ejua-ba.2023.4.303","url":null,"abstract":"نفذت تجربتين في موسمي الصيف والشتاء خلال الفترة من 22/ 7 / 2022م الى 25/ 8 / 2022 م من الفترة 2/ 2 / 2023 م الى 8/3 /2023م في حظيرة الدواجن التابعة لقسم الانتاج الحيواني لكلية ناصر للعلوم الزراعية- جامعة عدن في مديرية الحوطة  م / لحج،  حيث استخدم 90 فروج لحم من الهجين  التجاري Ross بعمر يوم واحد ،و غير مجنس  لكل تجربة. وتم توزيع الفراريج عشوائياً على 9 مكررات متساوية مساحة كل مكرر x 3 1م2 =3 م2 ، وبواقع 10 فراريج لكل مكرر. أظهرت نتائج هذه الدراسة أن للموسم تأثير معنوي (p<0.05) على نسبة تصافي في فصل الشتاء والصيف حيث بلغت 70.39و 69.65 % في عمر خمسه أسابيع على التوالي. كما أظهرت النتائج أن للموسم تأثير معنوي p<0.05)) على القلب والقانصة الكبد الطحال في فصل الشتاء والصيف حيث بلغت (5.38-8.64)، (  23.52-29.99)، (  - 47.99 31.03) ،(2.096 - 3.183   (جم /على التوالي  في عمر خمسه أسابيع، و ايضا اثر الموسم على درجت حرارة جسم الفراريج حيت اختلفت  في الشتاء عن الصيف حيت  بلغت 41.079-40.673 مْ على التوالي بعمر5 اسابيع.","PeriodicalId":11552,"journal":{"name":"Electronic Journal of University of Aden for Basic and Applied Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139387646","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}

{"title":"REDUCTION RATE OF SOME HEAVY METAL IN DIFFERENT CONCENTRATIONS USING Pseudomonas aeruginosa ISOLATED FROM TENNARY WASTEWATER EFFLEUNT","authors":"N. M. Ibrahim, S. Yagoub","doi":"10.47372/ejua-ba.2023.4.304","DOIUrl":"https://doi.org/10.47372/ejua-ba.2023.4.304","url":null,"abstract":"Industrial developments led to environmental pollution with toxic heavy metals which spreading all over the world. Heavy metal pollution, characterized by its heightened toxicity, resistance to biodegradation, and biological accumulation, has significantly jeopardized both human health and ecological stability. Microbial activities offer a potential avenue for immobilizing, removing, and detoxifying active heavy metal ions in the natural environment. This research aimed to study the ability of Pseudomonas aeruginosa in reducing the amount of Cd, Ni, Cr, Zn and Pb that found in tannery wastewater and to investigate its survivability in high concentrations of these metals.  In this study Pseudomonas aeruginosa, was isolated from tannery effluents wastewater. Pseudomonas aeruginosa has been incubated in medium contained 50, 100, 300, 500 and 1000 ppm of Cd, Ni, Cr, Zn and Pb for 6, 12 and 24hrs at 37 °C. Results showed that Pseudomonas aeruginosa was able to cause a significant reduction of Cd, Ni, Cr, Zn and Pb at incubation time of 24 hours at concentration of 50, 100 and 300 ppm ,the reduction level for  Ni were (96.5%, 96.2% and 96.4 %)  respectively, Cd (76.4%, 82.1% and 83.8 % )respectively, Cr showed reduction rates of ( 97.7% , 99.4% and 99.1%) respectively,  Pb ( 87.3% ,91.9% and 89.6%) respectively, and (82%, 87.6% and 80.1 %) respectively for Zn,  Pseudomonas aeruginosa  was not able to grow at concentration level of 500 and 1000 ppm for Cd, Ni, Cr, Zn and Pb. These results indicated that Pseudomonas aeruginosa is able to survive in tannery effluents wastewater containing high levels of Cd, Ni, Zn, Cr and Pb. Therefore, more research is recommended to study the ability of this species to remove Cd, Ni, Cr, Zn and Pb in different conditions.","PeriodicalId":11552,"journal":{"name":"Electronic Journal of University of Aden for Basic and Applied Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139387908","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}

{"title":"PREVALENCE OF PREGNANT WOMEN WITH OLIGOHYDRAMNIOS AND ITS EFFECT ON MATERNAL AND FETAL OUTCOME","authors":"Fatima Kassim Abdullah, Huda Abood Ahmed","doi":"10.47372/ejua-ba.2023.4.308","DOIUrl":"https://doi.org/10.47372/ejua-ba.2023.4.308","url":null,"abstract":"Oligohydramnios is a pregnancy condition characterized by low volume of amniotic fluid. Based on ultrasound measurement, it is defined as an amniotic fluid index (AFI) ≤ 5cm and associated with adverse fetal and maternal outcomes. To study the prevalence of oligohydramnios and its effect on maternal and fetal outcome in third trimester (≥ 28 weeks) of pregnant women admitted at AL-Sadaqa Teaching Hospital in the period of study from 1st January to 31st December 2020. This study is a prospective descriptive study was performed at AL-Sadaqa Teaching Hospital, Gynecology and Obstetrics Department among 100 pregnant women in third trimester diagnosed as oligohydramnios by ultrasound (AFI≤ 5cm). The results were analyzed by using the statistical package social software (SPSS), version 25. The study showed the prevalence of oligohydramnios during study period was (1.5%), and the mean age of the affected women was 27.72 ± 6.8 years. The half of the cases were in age group between 20-29 years (50%) and the gestational age were between 37-40 weeks (50%), and slightly more than half of the women were nulliparous (58%). The rate of caesarean section was (56%), and the most indication for cesarean section was fetal distress (42.9%). The fetal complications showed in this study were low birth weight (40%), preterm birth (27%) and meconium aspiration (11%). The Apgar score <7 in 5th minutes was (17%) of the newborns and the rate of perinatal mortality was (7%). The prevalence of oligohydramnios in this study was (1.5%) which is within the normal limit worldwide. The study showed that the oligohydramnios in a pregnant woman has many complications for the fetus as well as the mother, but it more dangerous for the fetus. For mother there is increase intervention in the form of induction of labor and cesarean delivery. An early detection of oligohydramnios, identification of the risk factors and its management may help in reduction of these complications.","PeriodicalId":11552,"journal":{"name":"Electronic Journal of University of Aden for Basic and Applied Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139389372","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}

{"title":"A COMPARATIVE QUALITY STUDY OF SELECTED AUTHORIZED AND SMUGGLED MEDICINES IN ADEN, YEMEN","authors":"E. Ali, Olfat Saleh Ahmed, Hala Shokri","doi":"10.47372/ejua-ba.2023.2.249","DOIUrl":"https://doi.org/10.47372/ejua-ba.2023.2.249","url":null,"abstract":"In Yemen, most of the medicines are imported. Drugs that enter the country by legal means undergo some tests by Supreme Board for Drugs and Medical Appliances (SBDMA) to evaluate the quality of the product. However, some medicines enter the country illegally (smuggling) and this makes them bypass the evaluation of their quality by the SBDMA. This work was carried out to determine the physical quality control parameters of authorized and smuggled drug products marketed in Aden pharmacies. The authorized and smuggled brands of cefuroxime (CEF), atorvastatin (ATR), and carvedilol (CAR) tablets available in Aden pharmacies were selected. The tablets were evaluated for their physical properties and quality control parameters including weight variation, hardness, friability, and disintegration test. The level of drug content also was evaluated using UV spectroscopy. The physical assessment showed that the authorized and smuggled brands of the same products were uniform in shape, color, packing, and labeling information except for the registration number and manufacture date which were present only on the authorized brands. The three authorized and smuggled brands of CEF, ATR, and CAR complied with the official specifications for weight version, diameter, thickness and hardness, friability, and disintegration tests except for the hardness value of ATR. All authorized brands agreed with the label claims whereas some smuggled brands contained the appropriate active ingredients but did not contain the right amounts.","PeriodicalId":11552,"journal":{"name":"Electronic Journal of University of Aden for Basic and Applied Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90809116","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}

{"title":"PARASITIC CONTAMINATION OF VEGETABLES IN SELECTED LOCAL MARKETS IN ADEN GOVERNORATE, YEMEN","authors":"Adelh Mohammed Qaid Muqbel, A. J. Binsaad","doi":"10.47372/ejua-ba.2023.2.251","DOIUrl":"https://doi.org/10.47372/ejua-ba.2023.2.251","url":null,"abstract":"Fresh and raw vegetables may play a significant role in transmission of intestinal parasitic infections to humans. Therefore, this study was conducted to estimate the level of parasitic contamination in vegetables which are consumed raw in Aden governorate, Yemen. This is a descriptive analytic cross-sectional study in which six local markets were randomly selected. A total of 216 fresh vegetable samples including parsley (Petroselinum sativum), watercress (Nasturtium officinale), lettuce (Lactuca sativa), leek (Allium porrum), green onion (Allium cepa), and tomatoes (Solanum Lycopersicum) were purchased from the selected markets and analysed using direct and iodine wet mount smear preparation. Modified Ziehl–Neelsen staining and Zinc sulphate flotation method were also used. Smears were examined by under the light microscope. Out of 216 vegetable samples, 166 (76.9%) were contaminated with one or more parasites. Parsley was the most contaminated (97.2%), followed by watercress (94.4%), lettuce (88.9%), leek (80.6%), green onion (77.8%), whereas the least contamination rate was in tomato (22.2%). Statistically significant difference in parasitic contamination rate was found between different types of vegetables (P < 0.05). The most common parasite was Ascaris lumbricoides 75 (24.4%), followed by cyst of Entamoeba histolytica/dispar 64 (20.9%), and Entamoeba coli 52 (16.8%). Significant difference was reported in prevalence rate between different parasitic species (????< 0.05). Vegetable samples collected from Dar Saad market, show the highest contamination rate (94.4%) while vegetables collected from Al Mansura market showed the lowest contamination rate(50.0%). However, the parasitic contamination rates were not significantly different for samples collected from different markets. This study highlighted the importance of raw vegetables as the potential source of transmission for intestinal parasites to humans. Prevention methods such as proper washing or cooking of vegetables before consumption should be conveyed to consumers. In addition, comprehensive health education and hygienic practices, including washing hands after handling vegetables, should be provided to sellers and consumers.","PeriodicalId":11552,"journal":{"name":"Electronic Journal of University of Aden for Basic and Applied Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87556012","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}

{"title":"ASSESSMENT OF ANTIBIOTICS RESISTANCE AND BIOFILM PRODUCTION AMONG BACTERIAL SPECIES ISOLATED FROM CONTACT LENSES","authors":"E. Bin-Hameed, Abdul-Aziz Bin-Beishr, Abdul Shames, Fatima Al-Salimy, Husam Habtoor, Mohammed Habtoor, Noha Al-assar, O. Al-amodi","doi":"10.47372/ejua-ba.2023.2.252","DOIUrl":"https://doi.org/10.47372/ejua-ba.2023.2.252","url":null,"abstract":"Contact lenses (CLs) wearing has been increased globally during recent decades, which is one of the main risk factors for developing several ocular infections. Resistant CLs bacterial infections are mainly due to the CLs contamination by bacteria producing biofilm. This study was aimed to assessment of antibiotics resistance and biofilm production among bacterial species isolated from contact lenses in Mukalla city, Hadhramout, Yemen. This cross-sectional study was carried out on 298 participants women during a period from October 2022 to January 2023. The CLs swab samples were collected, then inoculated onto culture media and incubated aerobically at 37°C for 24 hrs. The bacterial isolates were identified by conventional bacteriological methods of cultural characteristics, Gram staining and biochemical test. Antibiotics susceptibility testing was performed by disc diffusion method. Bacterial biofilm production on CLs was detected by tube method (TM) and Congo red agar (CRA) method. The prevalence of CLs bacterial infection was 54.4%. Enterobacter spp. 37.1%, followed by Escherichia coli 28.4%, Pseudomonas aeruginosa 11.7%, Klebsiella pneumoniae 6.8% were the most common Gram-negative isolated from CLs. Staphylococcus epidermides 3.7% and other coagulase negative staphylococci (CoNS) 12.3% were the most common species of Gram-positive bacteria isolated from CLs. The CRA method was found to be effective phenotypic screening method for detection of biofilm production of bacterial isolates from CLs. Prevalence of antibiotics resistance and multi-drug resistance (MDR) biofilm producing strains was found. In conclusion, there is a high prevalence of CLs use by females in Mukalla city, Hadhramout especially for cosmetic purposes. CLs infection due to improper care practices leads to eye complications. Increasing awareness is crucial to avoid identified risk factors for ocular infection.","PeriodicalId":11552,"journal":{"name":"Electronic Journal of University of Aden for Basic and Applied Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90359063","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}

{"title":"QUALITY EVALUATION OF PHARMACEUTICAL HUMAN SERUM ALBUMIN PREPARATIONS AVAILABLE IN PHARMACIES IN ADEN GOVERNORATE - YEMEN","authors":"Ahmed Thabet Ahmed Al-Sarhe, Mutea’a Edrous Saeed","doi":"10.47372/ejua-ba.2023.2.247","DOIUrl":"https://doi.org/10.47372/ejua-ba.2023.2.247","url":null,"abstract":"Human serum albumin(HAS) is important for the body, as it performs a set of functions such as maintaining osmotic pressure inside cells, transporting drugs and ions, and others. The fraudulent process of such preparations may lead to the deterioration of the patient's health condition and sometimes death. In the current study, two types of albumin preparations that were not authorized by the Yemeni ministry of health and entered the country through smuggling were studied. The results of the study proved that these preparations were exposed to high temperatures, so that denaturation of HSA, in addition to the oxidation process of the substance N-acetyl-tryptophan. The reverse phase (RP) high-performance liquid chromatography (HPLC) method to assess HSA, a gradient elution (a combination of acetonitrile/water, supplemented with 0.1% (v/v) trifluoroacetic acid) was used to separate samples on a C4 (n-butyl-coated silica) column. Two main peaks were observed at 4.970 and 10.850 min, representing the stabilizer N-acetyl-tryptophan (N-Ac-Trp) and HSA respectively. Validation of the method demonstrated that HSA can be determined in an accurate and precise manner, in a range between 0.1 and 5g/ml, without the interference of matrix ingredients. The limit of detection (LOD) and lower limit of quantification (LLOQ) values were 0.23 and 0.72 g /ml, respectively. The results of the study proved that these preparations do not meet the quality specifications of the World Health Organization, in addition to exposure to temperatures and bad storage leading to oxidation. The results of the analysis of all samples were less than the permissible limit because each sample must contain 10 grams per 50 ml.","PeriodicalId":11552,"journal":{"name":"Electronic Journal of University of Aden for Basic and Applied Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81897483","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}

{"title":"NEW METHODS FOR DETERMINATION OF AMBROXOL HYDROCHLORIDE IN PURE FORM AND FARMACEUTICAL FORMULATIONS BASED ON SPECTROPHOTOMETRY","authors":"Mohamed Ahmed Saleh Al-Lahji, Y. Issa, Hussien Mohamed Abddel-fattah","doi":"10.47372/ejua-ba.2023.2.246","DOIUrl":"https://doi.org/10.47372/ejua-ba.2023.2.246","url":null,"abstract":"The proposed methods are simple, rapid, and accurate, used for the determination of Ambroxol Hydrochloride (AMB.HCl). There were two methods, the First method included chromotrope 2R, chromotrope 2B, arsenazo I, ASPANDS, and chromotrope 2C for the determination of AMB.HCl in its pure and pharmaceutical forms. The first method is based on the drug oxidation with Potassium permanganate in excess. The unreacted potassium permanganate was determined by measuring the absorbance of colored chromotropic acid azo dyes namely chromotrope 2R, chromotrope 2B, arsenazo I, SPADNS, and chromotrope 2C. The suitable ƛmax were 500, 510, 500, 510, and 520 nm, respectively. Under optimized conditions, Beer’s Law showed good correlation and obeyed in the concentration range 1.51-7.46, 0.82-4.97, 1.65-6.63, 0.82-6.63, and 1.73-8.29 µg mL-1 for chromotrope 2R, chromotrope 2B, arsenazo I , SPADNS, and chromotrope 2C. The apparent molar absorptivity, Sandell sensitivity, LOD, and LOQ were calculated. Pure and pharmaceutical forms containing AMB.HCl were analyzed and tested for the validity of the proposed methods. The Second method spectrophotometric titration is based on the determination of unreacted potassium permanganate using spectrophotometric titration against ferrous ammonium sulfate, where the end-point was detected spectrophotometrically using ferrion indicator at 510 nm, the Relative standard deviation where 0.23-2.04 with average recovery 100.35-103%.","PeriodicalId":11552,"journal":{"name":"Electronic Journal of University of Aden for Basic and Applied Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77711840","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}

{"title":"OPTICAL AND DIELECTRIC PROPERTIES OF EPOXY RESIN FILLED WITH TITANIUM DIOXIDE PARTICLES","authors":"M. S. Al-Salimi, Wesam R. N. Ali, Khaled M. Habeb","doi":"10.47372/ejua-ba.2023.2.250","DOIUrl":"https://doi.org/10.47372/ejua-ba.2023.2.250","url":null,"abstract":"This work studies the electrical properties for pure epoxy, and epoxy with (0, 1, 1.5, 2 wt%) titanium dioxide powder composites. The effects of titanium dioxide contents on optical and dielectrically properties of the epoxy/ titanium dioxide have investigated by several techniques were used to characterize the epoxy/titanium dioxide: UV-visible spectrophotometer reveals a new absorption band in the wavelength range (350-600) nm. The findings of this investigation show that when the proportion of titanium dioxide added increases, the absorbance increases which are ascribed to interchain interaction. The absorption coefficient (α), extinction coefficient (k), refractive index (n), the real and imaginary permittivity (εr, εi), and energy gap (Eg) of epoxy/titanium dioxide samples were effectively determined from the recorded data optical transmission technique. In addition, these epoxy have been examined in the wavenumber range (4000-500 cm-1) using an FT-IR spectrometer and also a dielectric constant measurement. The thickness of all the samples is 1.2 mm ± 0.1 mm.","PeriodicalId":11552,"journal":{"name":"Electronic Journal of University of Aden for Basic and Applied Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80797598","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}