Abstract Space weather has been a task of research in modern fields of science; therefore, our recent technology is certainly influenced by impact of space weather particularly in satellites, spaceborne systems. Moreover, space weather has impacts on ground based technology such as electric power system, pipeline, and railways. Space weather variations can cause geomagnetically induced currents penetrate conducting structures of the transformers and cause: half-cycle saturation, increase the ...
Abstract The results of this study were carried out to determine the composition of the uranium element in the Nuba Mountains area in Southern Kordofan region in the regions of Mount Uro and Mount Kurn. Forty samples were collected from the two regions, 20 samples from each region were grinded and converted into powder, and analysed by XRF spectrometer. To find the concentration of each element in the sample. The analysis showed that the average concentration of the uranium element in the sa...
Abstract Fingerprints have many uses, chemical solution usually used to detect fingerprints but it takes a time. In this research He-Ne laser with output power 1mmW and wavelength 632.8nm and Diode laser with output power 5mmW and wavelength 532 nm were used to detect fingerprints on Aluminum surface and other Glass surface, fingerprints was exposure by laser beam through convex lens with focal length 5mm then a digital camera was used to record irradiated fingerprint. The revealed results s...
Abstract In this work, zinc oxide nano particles were synthesized by sol-gel method, from Zinc Acetate dehydrates (ZnC4H6O4). 2H2O, then the aluminum oxide was also prepared by sol-gel method from Aluminum acetate C6H9AlO6. Then ZnO was mixed by Al2O3 with concentration ratio of (0, 25, 50) % to get four samples of AZO, these samples were characterized with UV-VIS spectrometer, and the optical properties of AZO were studied. It is clearly seen that the energy gap decrease with increasing of ...
Abstract A magnetic property of matter plays an important role in modern technology. This need intensive research to satisfy technology need for new magnetic properties of matter. This motivates to do this research on the effect of change of nano size of Aluminum on its permeability. Three different nano sizes were prepared. It was found that increase of Aluminum nano size increases its magnetic permeability.
Abstract In this research, the running of quarks masses and flavor mixing in five dimensional standard models has been studied. The evolution properties of quark mass and flavor mixing are performed for the one-loop renormalization group equations in the five dimensional standard model. It is found that the five dimension model has a significant effect on the running of the fermion masses, including both quark and lepton sectors. We quantitatively discussed these quantities for R −1 = 1 Te...
Abstract The electrical property of noble mineral ( platinum( 58 680 sample and semiconductor 586 821were studied , at temperatures up to 100C0, 373 Kelvin. It was found that the temperature increases mineral resistivity and decreases it is conductivity ,the resistance and conductivity f or the mineral we found to be equal to R = 106.3 Ω and σ = 0. 01176 respectively . The resistance and conductivity for semiconductor were also obtained . It was found that increasing temperature decreases ...
Abstract This study focused on the exploration of chromium metal and its use in the industriesthat are selected for its utmost importance. In this study, glowing X-ray techniques were used to determine the concentration of chromium in the in the Ingessana Hills in the Blue Nile region.And also was the use of a gamma-ray spectroscopy to determine radioactivity of radionuclides found in the Ingessanahills. A total of 30 rock samples were taken from this area, which were analyzed by XRF. Each s...
Abstract Nowadays, noble metals nanoparticles are considered as the promising metals due their fascinating physical properties. Among the noble metals, silver nanoparticles ( Ag-NPs) exhibit a sharp and distinct absorption band in the visible region of electromagnetic spectrum associated with localized surface Plasmon resonance. Moreover, Ag NP has high resistance to oxidation and antibacterial activity which make it desirable for a wide range of applications particularly in biomedical scienc...
Abstract In this study scintillation counter is used for investigating and identifying the radioactive substances in the sample and determining their activities by means of gamma ray spectroscopy, sodium chloride as an example in order to determine its activity which reveals poor activity
Abstract There are several obvious observable evolutionary evidence among all the population of known pulsars, but a consistent description of this evolutionary trend is generally lacking in the literature. In this study, we provide a consistent interpretation of this evolutionary effect, on the ground that the exchange of moment of inertia with time between superiud component and the solid crust component as the temperature of the neutron star drops is a signicant process of energy loss in ...
ABSTRACT We re-examined the phenomenon of rotational instability in radio pulsars on decadal timescales using a sample of 315 radio pulsars whose spin-rates [rotation period (P) and spin-down rate ( P) ] have been measured on, at least two different epochs. The first stage of our analysis involves a direct comparison of the measured values of P and P at two epochs that are ~ 10 - 20 years apart in order to estimate the fluctuation in the parameters. The results show that the fluctuation in t...
Abstract This research is a study of the techniques of uranium enrichment and physical separation of isotopes, which often resort to when it is difficult to separate them by the usual chemical methods, including many of the mixtures that have already been used, such as uranium enrichment by laser, more common centrifuges, diffraction, thermal spread, magnetic separation and plasma. The enrichment process is important to take advantage of the uranium element as a fuel for various nuclear reac...
Population growth and urbanization have led to water scarcity and pollution which is a health hazard not only to human but also the ecosystem in general. This has necessitated coming up with ways of treating water before consumption. Photocatalysis has proved to be one of the most promising cheap techniques, which involve chemical utilization of solar energy. TiO2 widely used in photocatalysis absorbs a narrow range of the solar spectrum compared to ZnO. In this regard, this study aimed at pr...
ABSTRACT The importance of sand bed filters has gained more ground in on- site water treatment facilities. The performance of which depends on the design of the sand bed. A laboratory column experiment was designed to quantitatively determine the best kind of sand layered arrangement for maximal bacteria attenuation. Porosity was taken as media parameter to further examine the relationship between the layers that will yield a better performance. Porosity was determined using volumetric appro...