Egyptian Society of Nuclear Sciences and Applications (ESNSA)
Arab Journal of Nuclear Sciences and Applications
1110-0451
2090-4258
53
3
2020
07
01
12th International Conference of Nuclear Sciences and Applications February (15-18), 2020 Hurghada, Red Sea, Egypt, Caribbean World Resort, Soma Bay Organized by ESNSA
1
120
EN
https://ajnsa.journals.ekb.eg/article_70854.html
https://ajnsa.journals.ekb.eg/article_70854_9decceda25e091bdfe60f8fc96ea1ca8.pdf
Egyptian Society of Nuclear Sciences and Applications (ESNSA)
Arab Journal of Nuclear Sciences and Applications
1110-0451
2090-4258
53
3
2020
07
01
Proton Induced Reactions on Natural Se and Ag Targets for Producing 76, 77, 82Br and 107Cd Radioisotopes Using Low Energy Cyclotron
121
128
EN
Hamed
Showaimy
Cyclotron Project, Atomic Energy Authority
hshowaimy2016@gmail.com
Ahmed
H.M.
Solieman
Cyclotron Project, Atomic Energy Authority, Egypt
ahmedhassanms@gmail.com
Ahmed
S.
Abdel Hamid
Cyclotron Project, Atomic Energy Authority, Egypt
ahelsayed20@yahoo.com
Ali
Khalaf
Physics Department, Azhar University
alikhalaf@azhar.edu.eg
zeinab
abdo
saleh
cyclotron project, atomic energy authority
zeinabamer@gmail.com
10.21608/ajnsa.2020.20677.1309
Proton beam of energy 14.7MeV has been used to study the reactions cross-section and the excitation<br />functions for the three radioisotopes of bromine namely, 76Br, 77Br, 82Br produced through the reaction of<br />proton with natural selenium and 107Cd formed through the reaction of proton with natural silver targets.<br />Stacked foil technique was applied to measure the excitation functions. The energy degradation through<br />the foils was calculated using a computer program “STACK”. The reactions cross-sections were studied<br />and discussed in the energy range from the reactions threshold energy up to 14.3 MeV. Proton induced<br />activation cross-sections are needed to maximize the yield of the required product and to minimize the<br />yields of the radioactive impurities. These studies are also important for the verification of the nuclear<br />models which explain the reactions mechanism. Two theoretical codes namely, EMPIRE 3.2.2 and ALICEIPPE<br />as well as the data obtained from TENDLE-2017 library were used to obtain the cross-section values<br />which were compared with the experimental results. Integral yields were also calculated and presented.
Nuclear reaction / Selenium / Silver/ Excitation function/ Cyclotron/ Integral yield
https://ajnsa.journals.ekb.eg/article_104123.html
https://ajnsa.journals.ekb.eg/article_104123_46d981ee2d82cc58abf4f7b89b9f4658.pdf
Egyptian Society of Nuclear Sciences and Applications (ESNSA)
Arab Journal of Nuclear Sciences and Applications
1110-0451
2090-4258
53
3
2020
07
01
Using Ultraviolet-A radiation and antifungals for treatment of dermatophytes isolated from cattle and farm workers
129
139
EN
Madeha
Abd El-halim
Ibrahim
Atomic Energy authority
madyhamoda@yahoo.com
Eman
Diasty
Animal Health Refresh Institute
emandiasty61@gmail.com
Ghada
Kamal El-Khalafawy
EAEA
gh-elkhalafawy@hotmail.com
Mariam
Halem Youssef
01224604721
mariamhalim65@gmail.com
Mariam
Halem Youssef
Buffalo disease Department - Animal Health Research Institute, Dokki, Egypt (ARC)
manalelmesalamy@gmail.com
10.21608/ajnsa.2020.19058.1293
Dermatophytes are classified into 3 genera of fungi that commonly involve keratins tissue types; skin, nails and hairs in mammals. Ultraviolet radiation are used in the treatment of these fungi which cause DNA damage leading to inactivation of the pathogenic fungus. The present study was aimed to evaluate the ultraviolet (UV) radiation influence on the dermatophytes lesion growth that attack human and animal. Thirty isolates of dermatophytes were isolated from animals (skin scraping) and humans (skin scraping, hair and nail). Five species were identified viz., Trichophyton mentagrophyte, Trichophyton interdigitale, Trichophyton tonsurans, Trichophyton violaceum and Microsporum canis. UV-A, was found to be more active in delaying the dermatophytes colony growth in some current fungi widespread when combined with antifungal therapy to treat skin superficial fungal diseases, which caused dermatophytes lesion in human and animal. The present approach that a combination of antifungal drugs and UV-A to treat apparent dermatophytes diseases could reduce the therapeutic period and dosages which improve patients compliance.
T. interdigitale,DNA,Ultraviolet-A,Antifungal susceptibility,PCR
https://ajnsa.journals.ekb.eg/article_94380.html
https://ajnsa.journals.ekb.eg/article_94380_2b233ae84e7134db52d9693c4888f687.pdf
Egyptian Society of Nuclear Sciences and Applications (ESNSA)
Arab Journal of Nuclear Sciences and Applications
1110-0451
2090-4258
53
3
2020
07
01
Preparation and Characterization of Chitosan-Stabilized Selenium Nanoparticles for Ameliorating Experimentally Induced Diabetic Nephropathy in Rats
140
148
EN
Sabah
Ibrahim
Khater
0000-0003-1442-5619
9th. neighborhood
block 18026
sabkhater@yahoo.com
Ismail
Ali
Cyclotron Project, Nuclear Physics Department, Nuclear Research Center, Atomic Energy Authority, Egypt.
ismail_phy@yahoo.com
safaa
Khater
department of biochemistry, Faculty of vet. medicine, Zagazig University
safaa_khater83@yahoo.com
Alaa
Ahmed
department of biochemistry, Faculty of vet. medicine, Zagazig University
dr.alaaahmed88@yahoo.com
Saydat
abd el-megid
department of biochemistry, faculty of vet. medicine, zagazig university
safaakhater83@gmail.com
10.21608/ajnsa.2020.19809.1300
Chitosan-stabilized selenium nanoparticles (CTS-SeNPs) were prepared by reduction technique. Single phase structure of the SeNPs was confirmed using X-ray diffraction (XRD). Transmission Electron Microscope (TEM) showed that the particle size of the samples in the range of 15 nm. This experiment aimed to study the potential effect of (CTS-SeNPs) as a therapeutic factor in diabetic nephropathy in rats. Streptozotocin (STZ) was used to induce diabetes in rats; thirty-six numbers were divided into three groups; control, STZ-induced diabetic, and STZ-induced diabetic rats taken CTS-SeNPs groups at a dose (2 mg Se/kg/d). All groups were given respective treatment orally via gastric tube for 2 month. The obtained data showed that, the diabetic group revealed presence of Microalbuminurea, the indicator of diabetic nephropathy and showed a significant increase in fasting blood glucose, urea, creatinine, TAC and MDA, it is significant that high expression level of TGF-β1 and aldose reductase while the group treated with CTS-SeNPs revealed significant decline in all values compared to the diabetic group. Diabetic group showed a significant decrease in insulin level, GPx and SOD activity while, the treated group showed significant increase in these values compared to the diabetic group. Kidney tissue showed normal histological picture except for mild vascular and glomerular congestion in treated group when compared with diabetic one. Our experiment suggests that CTS-SeNPs can moderate diabetic nephropathy in streptozotocin-induced diabetic rats.
Chitosan selenium nanoparticles,diabetic,Nephropathy,oxidativeStress
https://ajnsa.journals.ekb.eg/article_98853.html
https://ajnsa.journals.ekb.eg/article_98853_8f143ee01ca6484825e51fabe7cd0232.pdf
Egyptian Society of Nuclear Sciences and Applications (ESNSA)
Arab Journal of Nuclear Sciences and Applications
1110-0451
2090-4258
53
3
2020
07
01
Study the Properties of 6061 Aluminum Alloy which used as Cladding for Nuclear Reactor Fuel by Using Positron Annihilation Doppler Broadening Technique .
149
154
EN
Mahmoud
Hussein
Ebd Elhakim
Egyptian Nuclear and radiological Regulatory Authority ( ENRRA )
mahmoudph8@gmail.com
mostafa
Darwash
Egyptian Nuclear and Radiological Regulatory Authority
m_darwash2000@yahoo.com
mohamed
Abdel - Rahman
minia university faculty of science , physics department
m_abdelrahman@mu.edu.eg
Emad
A.
Badawi
0000-0003-1544-9452
minia university faculty of science, physocs dept.,
emad.badawi@mu.edu.eg
10.21608/ajnsa.2020.20124.1304
Doppler broadening spectroscopy is a technique that is used to know the properties of matter by means of gamma quanta. The entire energy of an annihilation positron – electron pair includes the energy according to its mass (= 2 x 511 Kev) and kinetic energy corresponding to the motion of the particles causes an energy shift of the annihilation line. The line shape has two parameters S and W parameters,but the W parameter is more sensitive to the chemical surrounding of the annihilation site than the S parameter, because the core electron having high momentum are contributing.<br /> Mainlyin the region of large deviations from the annihilation energy of 511 kev. Both the S and w parameter are sensitive to the concentration and kind of defect.The goal of our work is to investigate the dependence of annihilation parameters on crystal defect the content of Mg atoms in a series of commercial Al – alloys by Doppler broadening technique .<br /> Position parameter like (crystallite size – trapping rate – defect density – dislocation density<br /> Storedenergy).
AA 6061,Doppler – broadening spectroscopy,S and w parameter,trapping rate
https://ajnsa.journals.ekb.eg/article_94381.html
https://ajnsa.journals.ekb.eg/article_94381_e0d80e44938c8bdb5ef38db5ce6160c7.pdf
Egyptian Society of Nuclear Sciences and Applications (ESNSA)
Arab Journal of Nuclear Sciences and Applications
1110-0451
2090-4258
53
3
2020
07
01
Determination of Uranium Isotopic Ratios by Alpha Spectrometry for Nuclear Materials Control Purposes
155
161
EN
Raed
Moustafa Abdelgaber
Abouzeid
3 Ahmed El-Zomor St.
raed.abouzeid1986@gmail.com
Abd Elhakim
Taha
Kandil
Dep. Of chemistry, Faculty of Science, Helwan University, Egypt
abdelhakimkandil@yahoo.com
Hany
Ibrahim
Khedr
Nuclear safeguards and physical protection department, Egyptian Nuclear and Radiological Regulatory Authority, Nasr City, Cairo
hany_khedr@yahoo.com
Ahmed
Mohamed Tharwat
El-Sharkawy
0000-0003-4518-9970
Quality Assurance department, Nuclear and Radiological Regulatory Authority, Nasr City, Cairo, Egypt
ahmedtharwat741@gmail.com
Omnia
Ibrahim Mohamed
Ali
Chemistry Department, Faculty of science, Helwan university, Helwan, Egypt
omn_aaa@yahoo.com
10.21608/ajnsa.2020.21370.1324
Uranium is the most common element in the nuclear fuel cycle. Different techniques have been used for analyzing the isotopic composition of uranium. Precise determination of uranium isotopic ratios for an efficient control of nuclear material was carried out through the modification of the used chromatographic method of uranium. Alpha spectrometry was utilized to identify different types of natural, depleted and enriched samples for safeguard purposes. Uranium element was extracted from other interfering radionuclides, purified, electrodeposited on a stainless-steel disc, and measured using alpha-spectrometer, then isotopic ratios were calculated. For comparison purposes, the samples were also measured using a hyper pure germanium (HPGe) spectrometer and the uranium isotopic ratios were obtained. The results obtained by both techniques were in agreement within difference ranged from -8.7 to 12%. It was concluded that alpha spectrometric measurements of uranium isotopes preceded by efficient radiochemical separation using extraction chromatography is a fast and reliable technique for safeguard purposes.
Safeguards,Uranium Isotopic Ratio,gamma spectrometry,Extraction Chromatography,alpha spectrometry
https://ajnsa.journals.ekb.eg/article_94383.html
https://ajnsa.journals.ekb.eg/article_94383_1fb7f202a4cf26230041fa972668757c.pdf
Egyptian Society of Nuclear Sciences and Applications (ESNSA)
Arab Journal of Nuclear Sciences and Applications
1110-0451
2090-4258
53
3
2020
07
01
An Efficient Computational Approach for Phonocardiogram Signals Analysis and Normal/Abnormal heart sounds diagnosis
162
177
EN
El-Sayed A.
El-Dahshan
Physics Depart., Faculty of Science, Ain Shams University
e_eldahshan@yahoo.com
Mohammed
N.
Ali
Egyptian E-Learning University (EELU), 33 El- Messaha Street, Eldokki
mnabeh@eelu.edu.eg
Ashraf
Yahiea
Department of Physics, Faculty of Science, Ain Shams University
ayahie@sci.asu.edu.eg
10.21608/ajnsa.2020.20968.1312
In the present work, we proposed an intelligent approach for the examination and classification of cardiac sound signals “phonocardiogram (PCG)”. In this approach, artificial neural network (ANN) is executed as indicator and classifier of PCG abnormalities using the features extracted from PCG acoustic signals via the discrete wavelet transform (DWT). To develop and validate the proposed approach, the PASCAL CHSC 2011 dataset was utilized. The k-fold cross validation was utilized to assess the efficiency of the proposed intelligent approach. The results demonstrate that the approach achieves high performance compared to other classification techniques for PCG datasets. The obtained results showed an overall accuracy of 99.89%. Moreover, the proposed approach results are compared with the ones that achieved utilizing different machine learning (ML) approaches recently published. The achieved results showed that our proposed system has ability for efficient diagnosis and classifications of PCG acoustic signals also; it can also assist the clinicians to take accurate decisions in detecting cardiovascular abnormalities.
Phonocardiogram (PCG),Heart Abnormality Detection,Wavelet Transform (WT),Artificial Neural Networks (ANN),Intelligent Approach
https://ajnsa.journals.ekb.eg/article_101571.html
https://ajnsa.journals.ekb.eg/article_101571_796515df00a7fa336eb721a1aa35c63f.pdf
Egyptian Society of Nuclear Sciences and Applications (ESNSA)
Arab Journal of Nuclear Sciences and Applications
1110-0451
2090-4258
53
3
2020
07
01
Calculation of Corrosion Rate in Ex-reactor Considering the Reactor Effects on the (VVER-1000) fuel clad
178
188
EN
Leila
Ramezani
Department of Nuclear Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
leila.ramezani9@yahoo.com
Masoud
Mansouri
Department of Nuclear Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
dmmansouri@gmail.com
Mohammad
Rahgoshay
Department of Nuclear Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
m.rahgoshay@gmail.com
10.21608/ajnsa.2020.29241.1350
As the oxidation rate of the fuel clad is an important factor in fuel designation, so its calculation for Ex-reactor and In-reactor conditions is of high importance. Since, the Zirconium oxidation is of high importance, so numerous studies are accomplished in order to study the layer and various methods have been proposed for reducing its growth. While, many models are developed to calculate the thickness of this layer both for external and operation condition of the reactor. These models are used for calculations, designation and studying the function of fuel rod. The corrosion of fuel clad is defined in two ways, initially the corrosion is calculated regardless of reactor’s impact, so called Ex-reactor, then it is computed by taking into account the effects, including irradiation, Lithium concentration, etc. which is known as In-reactor. The present paper aims at calculating the corrosion rate of fuel rod clad for Bushehr Reactor in Ex-reactor, and finally the reactor will be proposed by considering the effects.
Zirconium Corrosion,Fuel Clad,Ex-Reactor
https://ajnsa.journals.ekb.eg/article_100187.html
https://ajnsa.journals.ekb.eg/article_100187_4dc108860a4f6f6b81213b89514f03a7.pdf
Egyptian Society of Nuclear Sciences and Applications (ESNSA)
Arab Journal of Nuclear Sciences and Applications
1110-0451
2090-4258
53
3
2020
07
01
Effects of radiofrequency radiation emitted from mobile phone on hematological parameters in albino mice
189
196
EN
Mona
H.
Ibraheim
physics department, Faculty of science, Zagazig university, Cairo, Egypt.
mhmekky@yahoo.com
Magda
S.
Hanafy
Department of Physics, Faculty of Science, Zagazig University, Zagazig, Egypt
omnia.hilal@gmail.com
Samir
A.
Nassar
Department of Zoology, Faculty of Science, Zagazig University, Zagazig, Egypt
sam59nas@gmail.com
Amir
shahwan
Department of Physics, Faculty of Science, Zagazig University, Zagazig, Egypt
meroshahwan@gmail.com
10.21608/ajnsa.2020.25830.1338
Abstract <br /> The present study aimed to evaluate the effects of electromagnetic radiation EMR using mobile radiation 900 MHz ( Nokia 3310, power 0.96 W/kg , intensity 1.3 × 10-4 W/m2 ) on some hematological parameters: White blood cell (WBC), Red blood cell (RBC), Hemoglobin (HB), Mean corpuscular volume (MCV), Mean corpuscular hemoglobin (MCH), Mean corpuscular hemoglobin concentration (MCHC), and Platelet count (PLT), Lymphocyte (LYM), Erythrocyte sedimentation rate (ESR) , blood film, and osmotic fragility. Thirty adult male albino mice (25-30 gm weight) divided into three equal groups; A, B and C. Group A used as a control one, group B was exposed to EMR for 1hr ⁄day and Group C was exposed to EMR for 2hr ⁄day. The exposure time was three weeks the results showed a reduced number of red blood cells and hematocrit % for groups B and C. However, it was important to observe that the number of WBCs and LYM % increased and therefore reduced the damaging effect. Also, the erythrocyte sedimentation rate was faster than that of the control group. These results were supported by histology of blood cells, where irregularities and deformations in RBCs membranes have occurred. The osmotic fragility test showed a shift towards the low concentration of water after exposure to mobile radiation which indicates changes in the membrane permeability. We conclude that mobile radiation has harmful effects on the blood parameters of exposed mice.
Keywords: Mobile phone radiation,hematological parameters,Sedementation rate,Blood film,Osmotic fragility
https://ajnsa.journals.ekb.eg/article_98856.html
https://ajnsa.journals.ekb.eg/article_98856_6640dae60fc72f21a942360acd2e432a.pdf
Egyptian Society of Nuclear Sciences and Applications (ESNSA)
Arab Journal of Nuclear Sciences and Applications
1110-0451
2090-4258
53
3
2020
07
01
Spectroscopic Analysis of Irradiated Natural Quartz and ESR dating aspects
197
209
EN
Ahmed
Mohamed
Rashad
0000-0003-3031-0141
Central laboratory for Elemental and Isotopic Analysis, Nuclear Research Center, Atomic Energy Authority, p.O.Box, 13759, About Zabal, Egypt.
rashad119@yahoo.com
Abd ElEattah
Ibrahim
Helal
Department of Experimental Physics, Nuclear Research Center (NRC), Egyptian Atomic Energy Authority (EAEA), Abu Zabal, Egypt
aihelal2046@gmail.com
Gamal
Ahmed
Physics Department-Faculty of Science, Al-Azhar University
gsmoawad@hotmail.com
Said
Kassem
0000-0003-2107-3789
Department of Radiation Protection and Dosimetry, National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA),Nasr City, Cairo, Egypt
saidmoawad2@gmail.com
Ramy
Fahim
National Center for Radiation Research and Technology, Atomic Energy Authority
dr.ramyfahim@gmail.com
Sayed
Salem
Physics Department-Faculty of Science, Al-Azhar University
sayedmsalem@yahoo.com
Seif El-Din
Mohamed
National Center for Radiation Research and Technology, Atomic Energy Authority
seif_dose@yahoo.com
Ahmed
Gamal
Physics dep., faculty of science, Azhar University
drahmedgamal@yahoo.com
10.21608/ajnsa.2020.22502.1321
Abstract<br /> <br /> In this study, we conducted a spectroscopic characterization of natural milky quartz sample from Wadi Araba at the Egyptian Eastern Desert. This quartz material had been studied using scanning electron microscope (SEM), X-ray powder diffraction (XRD), UV–visible spectrophotometer (UV–vis), Fourier transform infrared spectrometer (FTIR), X-ray fluorescence spectrometer (XRF), inductively coupled plasma optical emission spectrometer (ICP-OES) and electron spin resonance (ESR) technique. In the current study, we have used raw samples as-received and gamma-irradiated conditions. The results reviled that gamma radiation had a slight influence on the color of milky quartz samples. XRF and inductively coupled plasma optical emission spectrometer were used to recognition the elemental composition of the raw sample. The ESR spectrum accomplished at room temperature display intrinsic defects such as Aluminium (Al) trap center. Furthermore, with increasing the additive doses the area under the dose response curve increases as a polynomial function, which applicable for ESR dating aspects.
ESR dating,Natural Quartz,Gamma-ray Irradiation,Natural dosimeter,additive dose method
https://ajnsa.journals.ekb.eg/article_97735.html
https://ajnsa.journals.ekb.eg/article_97735_2c03b83e5911851c3f9281a10515d5d8.pdf
Egyptian Society of Nuclear Sciences and Applications (ESNSA)
Arab Journal of Nuclear Sciences and Applications
1110-0451
2090-4258
53
3
2020
07
01
Radiation synthesis of gas sensor based on polyaniline nanoflake-poly vinyl alcohol) film for four hazardous gases (NH3, CO2, H2S and phenol)
210
221
EN
tarek
mohamed
NCRRT
tarekmmm75@yahoo.com
Ehab
Khozemy
Polymer Chemistry Department, National Center of Radiation Research and Technology, Egyptian Atomic Energy Authority, Cairo, Egypt.
ehabncrrt2298@yahoo.com
mohamed
ghobashy
ncrrt
mohamed_ghobashy@yahoo.com
10.21608/ajnsa.2020.20000.1302
In this study, a low-cost conductive composite membrane consisting of polyaniline nano-flake which dispersed in a polyvinyl alcohol has been prepared through in-situ polymerization technique. The polymerization of polyaniline is carried out based on polyvinyl alcohol using ammonium per sulfate as an oxidizing agent at low temperatures (–5°C) in acid medium at pH 3 1M (HCl) followed by exposure to gamma irradiation leading to crosslinging of (PVA/PANI) membranes and for enhancement formation of polyaniline nano-flake. The produced film is in the emeraldine oxidation state and fully protonated which can detect the hazardous gases (NH3, H2S, CO2 and phenol gas) through changing in the color and electrical conductivity. The gas-sensing property of (PVA/PANI) film was examined at ambient conditions of temperature and pressure. The observed is the variation in sensing property of (PANI-PVA) films corresponding to the type of gases in order NH3 ≥ H2S ≥ CO2 ≥ phenol gas. The product films of (PVA/PANI) before and after four gases adsorption were characterized by scanning electron microscopy, infrared spectroscopy, UV–Vis spectroscopy and XRD. TEM images of (PANI) obtained in form 2D-polyaniline nano-flake is confirmed. Furthermore, the incorporation of gas molecules onto the (PVA-PANI) films for four gases adsorption and their conductivity changing was examined. It was observed that the conductivity was changed according to the chemical structure changing of PANI as confirmed by FTIR data. It was found that, the electrical conductivity of all blended films decreases by exposure to the gas.
Polyaniline,nanoflake,Gas Sensor,Gamma Irradiation
https://ajnsa.journals.ekb.eg/article_92709.html
https://ajnsa.journals.ekb.eg/article_92709_163b2ecff490e516d14e88cb79e68935.pdf
Egyptian Society of Nuclear Sciences and Applications (ESNSA)
Arab Journal of Nuclear Sciences and Applications
1110-0451
2090-4258
53
3
2020
07
01
Investigation of Some Elements Concentrations and Distribution in Body parts and Organs of Japanese Quail Cotornix japonica
222
236
EN
Walaa
Fekry
Hassanin
0000-0001-8458-9155
Dept. of biological applications, Nuclear Research Center, Egyptian Atomic Energy Authority, Egypt
walaahassanin@gmail.com
Saad
Ahmed
Abdelaal
0000-0001-7099-7238
Central Lab of Elemental Analysis, Nuclear research Center, Egyptian Atomic Energy Authority
elaal11@yahoo.com
Abdelwahab
Mohamed
Abdelhady
000-0001-9078-9428
Central Lab of Elemental Analysis, Nuclear research Center, Egyptian Atomic Energy Authority
abdoon82@gmail.com
Adel
Mohamed
Abutaleb
0000-0002-6424-830x
Biological Applications Department, Radio Isotope Applications Division, Nuclear research Center, Egyptian Atomic Energy Authority
adelabutaleb@gmail.com
10.21608/ajnsa.2020.19474.1298
The presence, concentration and distribution of 42 trace and ultra trace elements in addition to rare earth elements (REE), yttrium(Y) and Thorium (Th) were analyzed using Inductively coupled plasma optical emission spectrometer (ICP-OES) in different body parts and organs of Japanese quail Cotornix japonica as a laboratory animal model. Twenty one of the investigated elements were below detection limit while the rest of the investigated elements varied in amount and distribution relative to organs and parts in which they were investigated. The existences, concentrations and distributions of Thallium (Tl) and europium (Er) are recorded in a higher living species by the present work. The present work also documented presence, concentration and distribution of Thulium (Tm) a living organism. The recorded concentrations and distributions of various elements may be related to their roles in structures and functions of organs in which they were distributed. From the present findings, we recommend better classification of elements according to distribution and concentration levels in individual organs. We also recommend investigation of the existence of Tm, Tl, and Er in other living species. We also recommend further investigation in the role of Tm, Tl, and Er in structure and metabolism of C. japonica parts and organs in which they were detected
ICP-OES,element distribution,element concentration,trace elements,ultra-trace elements
https://ajnsa.journals.ekb.eg/article_100751.html
https://ajnsa.journals.ekb.eg/article_100751_5063e64f9fd0c9afa9b86f1e2692af48.pdf
Egyptian Society of Nuclear Sciences and Applications (ESNSA)
Arab Journal of Nuclear Sciences and Applications
1110-0451
2090-4258
53
3
2020
07
01
Impact of Radiation Processing on The Efficiency of Antioxidant Activity of Pomegranate (Punica Granatum L.) by-products and Guava (Psidium Guajava L.) Leaves
237
251
EN
shymaa
ramadan
shaaban
chemistry and biochemistry, faculty of science, helwan university
shymaashaaban900@yahoo.com
Sawsan
Ahmed
Abd-elhalim
Professor of Biochemistry, Faculty of Science Helwan university
dr_sawsan2000@yahoo.com
Mohamed
Diaa
Farag
(1) Food Irradiation Research Department, Industrial Irradiation Division, National Centre for Radiation Research and Technology, Atomic Energy Authority, Nasr City, Cairo, Egypt
diaaf@hotmail.com
10.21608/ajnsa.2020.17902.1282
Three fruit by-products namely red peel of pomegranate (exocarp or pericarp), white pulp (mesocarp or albedo) and guava leaves were investigated for their contents of total phenols, total tannins and DPPH radical scavenging activity. The effect of different irradiation doses on these parameters was also studied. The results showed reasonable contents of phenols, tannins and high DPPH radical scavenging activities. Guava leaves indicated the highest radical scavenging activity. The effect of gamma irradiation showed higher antioxidant activity in case of red peel at 30kGy. Lower antioxidant activity was recorded for the white pulp at all doses which was parallel to its tannin contents. Almost no significant change was noticed in the antioxidant activity of guava leaves being extremely high in all cases. Generally, all irradiated fruit by-products studied indicated high antioxidant activities after irradiation. Even in case of the white pulp, which showed the lowest antioxidant activity after irradiation, it retained more than 70% of its natural antioxidant activity. The study recommends using these by-products as food preservatives, supplementary feeds for animals and in preparation of pharmacological products. Guava leaves stabilized by irradiation seem to be the best for food preservation being the highest in antioxidant activity. Keywords : Radiation effects, Antioxidant activity, Fruit by-products.
Keywords : Radiation effects,Antioxidant activity,Fruit by-products
https://ajnsa.journals.ekb.eg/article_100750.html
https://ajnsa.journals.ekb.eg/article_100750_27f9b3ed2becb811b40479cbd79eb80d.pdf
Egyptian Society of Nuclear Sciences and Applications (ESNSA)
Arab Journal of Nuclear Sciences and Applications
1110-0451
2090-4258
53
3
2020
07
01
New Applications for Linear Induction Drives used for Silent Propulsion Systems in Nuclear Submarines and Supercarriers
252
266
EN
Sherif
Ismaeel
Department of Physics, Faculty of science, Ain Shams University, Cairo, Egypt
sherifelhosainy77@hotmail.com
10.21608/ajnsa.2020.15711.1250
A 2-dimensional analytical and numerical theory for linear induction drives (LIDs) using hot seawater from coolant systems of nuclear reactors as a driving medium has been presented. This work suggests its use in nuclear submarines as it could be considered an important application on how to utilize the coolant output from nuclear reactors in nuclear submarines to generate energy that can be used in nuclear submarine and supercarriers as silent propulsion systems. In this paper, the stepped distribution of the 3-phase winding of the LID has been presented by Fourier integrals. The boundary value problem of the LID has been solved using Fourier transform techniques. The force and seawater input power expressions of the LID have been given in Fourier integral forms, which permit studying the effect of the design parameters of the LID to get the optimum performance. The effect of changing the conductivity of seawater due to the change in seawater temperature has been studied, showing the necessity of injecting hot water from the coolant system of the nuclear submarines or supercarriers, into the LID to improve their performance. The paper shows that the duct size, the conductivity, and the frequency are crucial factors for controlling the silent speed of these machines. For the same length of the machine, the paper shows that decreasing the number of poles and increasing the pole pitch improves the performance than increasing the number of poles and decreasing the pole pitch.
Linear induction drives,Linear induction motors,nuclear submarines
https://ajnsa.journals.ekb.eg/article_98852.html
https://ajnsa.journals.ekb.eg/article_98852_d74f07e34012b53493fcef008fed0be6.pdf
Egyptian Society of Nuclear Sciences and Applications (ESNSA)
Arab Journal of Nuclear Sciences and Applications
1110-0451
2090-4258
53
3
2020
07
01
IAEA activities in support of research reactor and nuclear analytical techniques
267
275
EN
10.21608/ajnsa.2020.101733
The IAEA provides support to Member States on research reactor and nuclear analytical techniques,<br />including support to strategic and business planning, conducting training workshops, proficiency tests,<br />coordinated research projects and expert missions, editing publications and development of e-learning<br />tools. This paper presents and summarizes some of the recent activities undertaken by the IAEA in this<br />area.
https://ajnsa.journals.ekb.eg/article_101733.html
https://ajnsa.journals.ekb.eg/article_101733_ee892c8296e197269dba2e754521ca0a.pdf
Egyptian Society of Nuclear Sciences and Applications (ESNSA)
Arab Journal of Nuclear Sciences and Applications
1110-0451
2090-4258
53
3
2020
07
01
Surface -Groundwater Interaction in the Area between El-Timsah Lake and Ismailia Canal Using Hydrochemical and Isotopic Techniques
276
290
EN
Hanan
Badawi
Hassan
ENRRA
hanan.badawy.h@gmail.com
Rafat
Ahmed
El Rayan
ENRRA
rafatrayan@yahoo.com
Rasha
Abdalla
Huissen
ENRRA
rasha.enrra@gmail.com
10.21608/ajnsa.2020.21757.1317
The study aims to understand how surface-groundwater interacts and impact in both water quality in the area between El-Timsah Lake and Ismailia Canal. In order to achieve this aim, and integration of hydrochemistry, trace elements, and environmental stable isotopes investigations were done. Twenty-one surfaces and groundwater samples were collected from the study area. Salinity (TDS) of El-Timah lake differs from 16730- 34560 mg/l indicates the discharge of Ismailia Canal and drainage water into the lake in the eastern and middle parts of the lake. While salinity of groundwater ranged from 345.7 to 1099 mg/l. According to the drinking water quality index (DWQI), most of the groundwater is suitable for drinking purposes but some wells in the study area threatened due to increasing salinity. Stable isotopes δ18O and δ2H of groundwater samples ranged from (2.54-3.39‰) and (22.95-27.79 ‰) respectively. The isotopic content (δ18O and δD) of groundwater is similar to the isotopic content value of the Nile water and Ismailia canal. This confirms that the Ismailia canal and drainage water as a recharge source for the unconfined aquifer. The highest values of nitrate and phosphate concentration in groundwater were observed 53.4 and 1.8 mg/l respectively which are slightly above permissible limits. Also trace elements (Al, B, Fe, Si, and Sr) of some surface and groundwater samples exceeded the international standard limits. Increase nitrate, phosphate and trace elements concentration may be fed rapid pollution path to the underlying, shallow aquifers which may have an impact on groundwater quality.
Hydrochemical evolution,Water quality index,Environmental isotopes,Western Ismailia canal
https://ajnsa.journals.ekb.eg/article_103188.html
https://ajnsa.journals.ekb.eg/article_103188_93b82d5b2e577d3616a265828a202405.pdf