Journal of Radiation Research and Applied Sciences 
This is an RSS file. You can use it to subscribe to this data in your favourite RSS reader or to display this data on your own website or blog.
This is an RSS file. You can use it to subscribe to this data in your favourite RSS reader or to display this data on your own website or blog.Effect of nutrition, vitamin, grains, and temperature on the mycelium growth and antioxidant capacity of Cordyceps militaris (strains AG-1 and PSJ-1)
Publication date: April 2018Source: Journal of Radiation Research and Applied Sciences, Volume 11, Issue 2Author(s): Hung-Ngoc Dang, Chun-Li Wang, Horng-Liang LayAbstractEffects of subculture conditions on the mycelium growth and antioxidant capacity assessment of Cordyceps militaris trains AG-1 and PSJ-1 were carried out in laboratory during the autumn-winter season of 2015. Different temperature regimes and nutrition, vitamins levels, grain in substrate were evaluated for optimization on mycelium growth. The results showed that two strains AG-1 and PSJ-1 can grow the maximum mycelium radial at the temperature of 24 °C...
Source: Journal of Radiation Research and Applied Sciences - July 10, 2018 Category: Physics Source Type: research
Comparative modeling results for ridge waveguide MQW and hybrid Si/III-V lasers
In this study, 1550 nm ridge waveguide multi quantum well (MQW) and hybrid Si/III-V lasers are simulated and the results are studied in a comparative setting. InGaAsP active layers with a ridge waveguide length of 500 μm and width of 5 μm with six quantum wells are chosen for both MQW and hybrid Si/III-V lasers. The hybrid Si/III-V laser structure is obtained by integration of a ridge waveguide MQW semiconductor laser with a silicon-on-insulator (SOI) chip. The proposed structure allows laser mode to experience maximal gain available in the III-V region while maintaining a high coupling efficiency to Si-waveguide. The...
Source: Journal of Radiation Research and Applied Sciences - July 10, 2018 Category: Physics Source Type: research
Investigation of alloying effects on XRF parameters of 3d transition metals in Permendur49, Kovar and Ti50Co50 alloys
Publication date: April 2018Source: Journal of Radiation Research and Applied Sciences, Volume 11, Issue 2Author(s): Bünyamin Alım, Mine Uğurlu, İbrahim Han, Lütfü DemirAbstractThe alloying effects on X-ray fluorescence (XRF) parameters such as K shell fluorescence cross-sections (σKα, σKβ and σK), K shell average fluorescence yields (ωK) and K to L shell vacancy transfer probabilities (ηKL) of V, Ti, Fe, Co and Ni 3d transition metals in Permendur49 (Fe49Co49V2), Kovar (Fe54Ni29Co17) and Ti50Co50 alloys have been carried out by X-ray fluorescence studies. K X-ray intensity ratios of these 3d transition metals...
Source: Journal of Radiation Research and Applied Sciences - July 10, 2018 Category: Physics Source Type: research
Study of the effect of irradiation (60Co) on M1 plants of common bean (Phaseolus vulgaris L.) cultivars and determined of proper doses for mutation breeding
The objective of this study is to determine the morphological changes and the proper dose of gamma irradiation for the mutation breeding program of common bean (Phaseolus vulgaris L.). The effects of different doses (100, 150, 200, 250, 300, 350, 400, 450 and 500 Gy) of gamma irradiation (60Co) on seedling growth parameters and survival rates of the plants were investigated. In order to determine the proper dose and morphological changes; shoot length, root length, shoot fresh weight, shoot dry weight, root fresh weight, root dry weight, stem diameter, leaf width, leaf length, chlorophyll index and number of survival pla...
Source: Journal of Radiation Research and Applied Sciences - July 10, 2018 Category: Physics Source Type: research
IFC - Editorial Board
Publication date: April 2018Source: Journal of Radiation Research and Applied Sciences, Volume 11, Issue 2Author(s): (Source: Journal of Radiation Research and Applied Sciences)
Source: Journal of Radiation Research and Applied Sciences - July 10, 2018 Category: Physics Source Type: research
Investigation of awareness levels about the radiation safety of personnel working in the imaging units of the hospitals in Agri, Turkey
Publication date: April 2018Source: Journal of Radiation Research and Applied Sciences, Volume 11, Issue 2Author(s): Ebru Senemtaşi Ünal, Kadir Geliş, Pınar BaykanAbstractRadiation treatments, which are frequent and hidden hazards in imaging centers in hospitals, seriously affect employee health. In general, people think that there will be nothing to them because they do not know the damage of the radiation. It is not possible to stay away from radiation in some professions. For example, the radiology officials, their job is to identify the disease in people with radiographic method has no chance of dealing with radiat...
Source: Journal of Radiation Research and Applied Sciences - July 10, 2018 Category: Physics Source Type: research
Numerical analysis with experimental comparison in duct flow using optimized heat sinks
In this study, heat transfer and flow characteristics of hexagonal finned heat sinks which optimized according to the Taguchi experimental L18(21*37) design method in channel flow was analyzed numerically. Ansys-Fluent Icepak module was used in CFD analysis. The analysis carried out for two hexagonal finned optimized heat sinks in 3 different fin heights and 5 different flow velocities. Nusselt number increased with increasing Reynolds number for OH-1 and OH-2 heat sinks with all fin heights. Also, results showed that the friction factor decreased with increasing Reynolds number for all fin heights. According to CFD result...
Source: Journal of Radiation Research and Applied Sciences - July 10, 2018 Category: Physics Source Type: research
Morphological characterization and distribution of antennal sensilla of irradiated female mosquito, Culex pipiens (Diptera: Culicidae) with gamma radiation
Publication date: Available online 10 April 2018Source: Journal of Radiation Research and Applied SciencesAuthor(s): Hatem A.M. Ibrahim, S.G. Sawires, A.F. HamzaAbstractCulex pipiens mosquito is considered as one of the most dangerous insect pests that affect humans and animals worldwide as they transmit epidemic and fatal diseases. Antennal structure of the normal and irradiated female mosquito, Culex pipiens was examined using scanning electron microscopy to study the changes in the antennal segments and associated sensilla when 1–2 days old pupae were irradiated at low dose (20Gy), moderate (40Gy) and high (80Gy). The...
Source: Journal of Radiation Research and Applied Sciences - July 10, 2018 Category: Physics Source Type: research
First trial of SiC/SiC tube fabrication for tungsten monoblock armor
This article is reporting the practical steps of the first trial fabrication of SiC/SiC tube with tungsten mono block armor which it is applicable for fusion reactors actively cooling system, where the proceeding to fabricate actively cooling system during the fusion reaction is very important; to decrease the large amount of heat flux produced from neutron irradiation, so the FEEMA project inside Muroran institute of technology has taken an anticipated trial to fabricate this mock up to contribute actively towards the future fusion reactors. The facilities which have been used during the experimental work representing on ...
Source: Journal of Radiation Research and Applied Sciences - July 10, 2018 Category: Physics Source Type: research
Radiation awareness among physicians about the hazards of radiological examinations on the health of workers and their patients in Saudi Arabia
This study aims to estimate the knowledge and awareness of physicians about the hazards of radiological examinations on their health and on their patients. 466 questionnaires administered through a Google spreadsheet were answered by physicians from the 20 cities of Saudi Arabia. The sample included 167 radiologists, 106 neonatologists, 19 oncologists, 45 surgeons and 18 orthopaedists, 11 paediatricians and 100 physicians on different specialities. Only 133 of the physicians had received a radiation protection course in the workplace. A total of 73% from participants revealed many gaps in knowledge. For example, 51% of the...
Source: Journal of Radiation Research and Applied Sciences - July 10, 2018 Category: Physics Source Type: research
Deterministic evaluation of safety parameters and neutron flux spectra in the MNSR research reactor using DRAGON-4 code
Publication date: Available online 22 April 2018Source: Journal of Radiation Research and Applied SciencesAuthor(s): Jamal Al Zain, O. El Hajjaji, T. El Bardouni, H. BoukhalAbstractComparative studies for conversion of the fuel from high enriched uranium (HEU) to low enriched uranium (LEU) in the reactor (MNSR) were performed using DRAGON code deterministic. In this work the HEU fuel (UAl4-Al, 90% enriched with Al-clad) and LEU (12.6% UO2 enriched with zircaloy-4 alloy clad) cores were analyzed. This model was utilized in this work to calculate the neutron energy flux spectrum in the first inner and outer irradiation sites...
Source: Journal of Radiation Research and Applied Sciences - July 10, 2018 Category: Physics Source Type: research
Radiological risks assessment of 238U, 232Th and 40K in fish feeds and catfish samples from selected fish farms in Ado – Ekiti, Nigeria
This study was carried out to ascertain the possibilities of radionuclides pollution due to catfish consumption in the study area. The activity concentrations of radionuclides were determined in catfish and fish feeds using gamma spectrometry method. Committed effective doses were inferred for adults and children of age 10 from the activity concentrations of 40K, 238U and 232Th in catfish. The results show that the annual committed effective doses for adults and children were all lower than the recommended 1.0 mSv y−1 limit for memebers of the public. This shows that the radiation dose incurred from the ingestion of ...
Source: Journal of Radiation Research and Applied Sciences - July 10, 2018 Category: Physics Source Type: research
Design, fabrication and performance test of a fixed bed batch type pyrolysis plant with scrap tire in Bangladesh
Publication date: Available online 24 May 2018Source: Journal of Radiation Research and Applied SciencesAuthor(s): Mohammad Abdul Aziz, M.A. Rahman, Halim MollaAbstractThis paper presents the design and construction of a fixed bed batch pyrolysis reactor. The reactor is further used for the production of pyro oil from scrap tire. The result shows that reactor yields a maximum pyro oil of 42 wt% at the temperature of 400 °C with a feed size of 15 cm3. The produced pyro oil has a higher viscosity of 4.5 cSt and heating value of 42.5 MJ/kg. Thus pyro oil cannot be used directly in engine operation but as a furnace ...
Source: Journal of Radiation Research and Applied Sciences - July 10, 2018 Category: Physics Source Type: research
Natural radioactivity levels and evaluation of radiological hazards in some Egyptian ornamental stones
Publication date: Available online 12 June 2018Source: Journal of Radiation Research and Applied SciencesAuthor(s): A.M. Shohda, W.M. Draz, F.A. Ali, M.A. YassienAbstractGeological materials usually contaminated with naturally occurring radioactive materials (NORM) have become a focus of great attention. The radioactivity concentrations of 226Ra, 232Th and 40K in some ornamental stones in Egypt, were measured using a high-resolution gamma ray spectrometer. The natural radionuclide contents, (Ra) equivalent activities and various hazard indices were also calculated to assess the radiation hazard. It was found that none of t...
Source: Journal of Radiation Research and Applied Sciences - July 10, 2018 Category: Physics Source Type: research
Effect of inclusion irradiated olive pulp in laying quail diets on biological performance
Publication date: Available online 14 June 2018Source: Journal of Radiation Research and Applied SciencesAuthor(s): N.S. Ibrahim, E.M. Sabic, A.M. Abu-TalebAbstractA feeding trial was conducted to study the effect of replacing yellow corn ingredient as the major energy source in laying Japanese quail diets by 0, 5 and 10% each irradiated Olive Pulp (IOP) or un-irradiated Olive Pulp (OP). A total of 216 laying Japanese quail, 12 weeks-old were randomly divided into six equal treatments (36 birds/treatment) with three replicates (8 female, 4 male in each). The experiment was lasted for six weeks to evaluate OP or IOP as a so...
Source: Journal of Radiation Research and Applied Sciences - July 10, 2018 Category: Physics Source Type: research
