2024-03-29T08:44:55Z
https://ajnsa.journals.ekb.eg/?_action=export&rf=summon&issue=15210
Arab Journal of Nuclear Sciences and Applications
1110-0451
1110-0451
2020
53
3
12th International Conference of Nuclear Sciences and Applications February (15-18), 2020 Hurghada, Red Sea, Egypt, Caribbean World Resort, Soma Bay Organized by ESNSA
2020
07
01
1
120
https://ajnsa.journals.ekb.eg/article_70854_9decceda25e091bdfe60f8fc96ea1ca8.pdf
Arab Journal of Nuclear Sciences and Applications
1110-0451
1110-0451
2020
53
3
Proton Induced Reactions on Natural Se and Ag Targets for Producing 76, 77, 82Br and 107Cd Radioisotopes Using Low Energy Cyclotron
Hamed
Showaimy
Ahmed
Solieman
Ahmed
Abdel Hamid
Ali
Khalaf
zeinab
saleh
Proton beam of energy 14.7MeV has been used to study the reactions cross-section and the excitationfunctions for the three radioisotopes of bromine namely, 76Br, 77Br, 82Br produced through the reaction ofproton with natural selenium and 107Cd formed through the reaction of proton with natural silver targets.Stacked foil technique was applied to measure the excitation functions. The energy degradation throughthe foils was calculated using a computer program “STACK”. The reactions cross-sections were studiedand discussed in the energy range from the reactions threshold energy up to 14.3 MeV. Proton inducedactivation cross-sections are needed to maximize the yield of the required product and to minimize theyields of the radioactive impurities. These studies are also important for the verification of the nuclearmodels which explain the reactions mechanism. Two theoretical codes namely, EMPIRE 3.2.2 and ALICEIPPEas well as the data obtained from TENDLE-2017 library were used to obtain the cross-section valueswhich were compared with the experimental results. Integral yields were also calculated and presented.
Nuclear reaction / Selenium / Silver/ Excitation function/ Cyclotron/ Integral yield
2020
07
01
121
128
https://ajnsa.journals.ekb.eg/article_104123_46d981ee2d82cc58abf4f7b89b9f4658.pdf
Arab Journal of Nuclear Sciences and Applications
1110-0451
1110-0451
2020
53
3
Using Ultraviolet-A radiation and antifungals for treatment of dermatophytes isolated from cattle and farm workers
Madeha
Ibrahim
Eman
Diasty
Ghada
Kamal El-Khalafawy
Mariam
Halem Youssef
Mariam
Halem Youssef
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
2020
07
01
129
139
https://ajnsa.journals.ekb.eg/article_94380_2b233ae84e7134db52d9693c4888f687.pdf
Arab Journal of Nuclear Sciences and Applications
1110-0451
1110-0451
2020
53
3
Preparation and Characterization of Chitosan-Stabilized Selenium Nanoparticles for Ameliorating Experimentally Induced Diabetic Nephropathy in Rats
Sabah
Khater
Ismail
Ali
safaa
Khater
Alaa
Ahmed
Saydat
abd el-megid
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
2020
07
01
140
148
https://ajnsa.journals.ekb.eg/article_98853_8f143ee01ca6484825e51fabe7cd0232.pdf
Arab Journal of Nuclear Sciences and Applications
1110-0451
1110-0451
2020
53
3
Study the Properties of 6061 Aluminum Alloy which used as Cladding for Nuclear Reactor Fuel by Using Positron Annihilation Doppler Broadening Technique .
Mahmoud
Ebd Elhakim
mostafa
Darwash
mohamed
Abdel - Rahman
Emad
Badawi
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. 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 . Position parameter like (crystallite size – trapping rate – defect density – dislocation density Storedenergy).
AA 6061
Doppler – broadening spectroscopy
S and w parameter
trapping rate
2020
07
01
149
154
https://ajnsa.journals.ekb.eg/article_94381_e0d80e44938c8bdb5ef38db5ce6160c7.pdf
Arab Journal of Nuclear Sciences and Applications
1110-0451
1110-0451
2020
53
3
Determination of Uranium Isotopic Ratios by Alpha Spectrometry for Nuclear Materials Control Purposes
Raed
Abouzeid
Abd Elhakim
Kandil
Hany
Khedr
Ahmed
El-Sharkawy
Omnia
Ali
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
2020
07
01
155
161
https://ajnsa.journals.ekb.eg/article_94383_1fb7f202a4cf26230041fa972668757c.pdf
Arab Journal of Nuclear Sciences and Applications
1110-0451
1110-0451
2020
53
3
An Efficient Computational Approach for Phonocardiogram Signals Analysis and Normal/Abnormal heart sounds diagnosis
El-Sayed A.
El-Dahshan
Mohammed
Ali
Ashraf
Yahiea
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
2020
07
01
162
177
https://ajnsa.journals.ekb.eg/article_101571_796515df00a7fa336eb721a1aa35c63f.pdf
Arab Journal of Nuclear Sciences and Applications
1110-0451
1110-0451
2020
53
3
Calculation of Corrosion Rate in Ex-reactor Considering the Reactor Effects on the (VVER-1000) fuel clad
Leila
Ramezani
Masoud
Mansouri
Mohammad
Rahgoshay
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
2020
07
01
178
188
https://ajnsa.journals.ekb.eg/article_100187_4dc108860a4f6f6b81213b89514f03a7.pdf
Arab Journal of Nuclear Sciences and Applications
1110-0451
1110-0451
2020
53
3
Effects of radiofrequency radiation emitted from mobile phone on hematological parameters in albino mice
Mona
Ibraheim
Magda
Hanafy
Samir
Nassar
Amir
shahwan
Abstract 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
2020
07
01
189
196
https://ajnsa.journals.ekb.eg/article_98856_6640dae60fc72f21a942360acd2e432a.pdf
Arab Journal of Nuclear Sciences and Applications
1110-0451
1110-0451
2020
53
3
Spectroscopic Analysis of Irradiated Natural Quartz and ESR dating aspects
Ahmed
Rashad
Abd ElEattah
Helal
Gamal
Ahmed
Said
Kassem
Ramy
Fahim
Sayed
Salem
Seif El-Din
Mohamed
Ahmed
Gamal
Abstract 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
2020
07
01
197
209
https://ajnsa.journals.ekb.eg/article_97735_2c03b83e5911851c3f9281a10515d5d8.pdf
Arab Journal of Nuclear Sciences and Applications
1110-0451
1110-0451
2020
53
3
Radiation synthesis of gas sensor based on polyaniline nanoflake-poly vinyl alcohol) film for four hazardous gases (NH3, CO2, H2S and phenol)
tarek
mohamed
Ehab
Khozemy
mohamed
ghobashy
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
2020
07
01
210
221
https://ajnsa.journals.ekb.eg/article_92709_163b2ecff490e516d14e88cb79e68935.pdf
Arab Journal of Nuclear Sciences and Applications
1110-0451
1110-0451
2020
53
3
Investigation of Some Elements Concentrations and Distribution in Body parts and Organs of Japanese Quail Cotornix japonica
Walaa
Hassanin
Saad
Abdelaal
Abdelwahab
Abdelhady
Adel
Abutaleb
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
2020
07
01
222
236
https://ajnsa.journals.ekb.eg/article_100751_5063e64f9fd0c9afa9b86f1e2692af48.pdf
Arab Journal of Nuclear Sciences and Applications
1110-0451
1110-0451
2020
53
3
Impact of Radiation Processing on The Efficiency of Antioxidant Activity of Pomegranate (Punica Granatum L.) by-products and Guava (Psidium Guajava L.) Leaves
shymaa
shaaban
Sawsan
Abd-elhalim
Mohamed
Farag
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
2020
07
01
237
251
https://ajnsa.journals.ekb.eg/article_100750_27f9b3ed2becb811b40479cbd79eb80d.pdf
Arab Journal of Nuclear Sciences and Applications
1110-0451
1110-0451
2020
53
3
New Applications for Linear Induction Drives used for Silent Propulsion Systems in Nuclear Submarines and Supercarriers
Sherif
Ismaeel
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
2020
07
01
252
266
https://ajnsa.journals.ekb.eg/article_98852_d74f07e34012b53493fcef008fed0be6.pdf
Arab Journal of Nuclear Sciences and Applications
1110-0451
1110-0451
2020
53
3
IAEA activities in support of research reactor and nuclear analytical techniques
The IAEA provides support to Member States on research reactor and nuclear analytical techniques,including support to strategic and business planning, conducting training workshops, proficiency tests,coordinated research projects and expert missions, editing publications and development of e-learningtools. This paper presents and summarizes some of the recent activities undertaken by the IAEA in thisarea.
2020
07
01
267
275
https://ajnsa.journals.ekb.eg/article_101733_ee892c8296e197269dba2e754521ca0a.pdf
Arab Journal of Nuclear Sciences and Applications
1110-0451
1110-0451
2020
53
3
Surface -Groundwater Interaction in the Area between El-Timsah Lake and Ismailia Canal Using Hydrochemical and Isotopic Techniques
Hanan
Hassan
Rafat
El Rayan
Rasha
Huissen
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
2020
07
01
276
290
https://ajnsa.journals.ekb.eg/article_103188_93b82d5b2e577d3616a265828a202405.pdf