Abstract The objective of this study is to evaluate the performance of the SPECT gamma camera at Alnilien Medical Diagnostic Centre of Khartoum This study was carried out in Nuclear Medicine Department in Alnelein Medical Diagnostic Centre (NMDC) and the results were compared with the international guidelines. The study evaluates the following parameters: energy resolution, uniformity, sensitivity and linearity All results that obtained from the study have been compared with the accepta...
ABSTRACT Various studies have indicated that the collection phase of solid wastes, which comprises of the initial col- lection at the source of generation and the transportation to the disposal sites, is by far the most expensive. Two fundamental issues of concern in solid waste collection are the locations of initial collection and the period of collection by the dedicated vehicles. However, considering the prevailing conditions of adhoc lo- cation of waste containers and the faulty roads in...
ABSTRACT In this work, the classical Black-Scholes model for stock option valuation on the basis of some stochastic dynamics was considered. As a result, a stock option val- uation model with a non-_xed constant drift coe_cient was derived. The classical Black-Scholes model was generalised via the application of the Constant Elasticity of Variance Model (CEVM) with regard to two cases: case one was without a dividend yield parameter while case two was with a dividend yield parameter. In both ...
ABSTRACT Ternary thin films of Iron Copper Sulphide (FeCuS), Iron Zinc Sulphide (FeZnS), Lead Silver Sulphide (PbAgS), Copper Silver Sulphide (CuAgS) and Copper Zinc Sulphide (CuZnS) were grown using cheap and simple solution growth technique with EDTA, TEA and NH3 as complexing agents. The deposited films were characterized using PYE-UNICO-UV-2102 PC spectrophotometer, and optical microscopy. The results suggest that some of the films have crystal structures. From the spectral analysis ...
ABSTRACT A total of eight soil samples were collected from different sites within FUOYE environment and were analyzed to determine the presence of antibiotic producing bacteria, fungi and actinomycete Using nutrient agar, sabauraud dextrose agar and glycerol yeast extract agar as culture media. Seven bacteria: Escherichia coli, Bacillus spp, Pseudomonas spp, Azomonas spp, Gluconobacter spp, Micrococcus spp, and Staphylococcus aureus; five fungi: Rhizopus spp, Mucor spp, Rhodotorula spp, ...
ABSTRACT Electrical resistivity survey was used to investigate the anisotropic properties with the view of understanding the major direction of fractures as well as the behavioural patterns of the structures in part of Federal University Oye Ekiti, south western Nigeria. The area lies within the south-western Basement complex of Nigeria underlain by migmatite, granite gneiss. Five Radial Vertical Electrical Soundings (RYES) were carried out along four different azimuths (0°, 45°, 90°...
ABSTRACT In light of the information revolution and rapid technological jumps which caused to increase use the digital images to develop large applications in visual communication systems, the target image is typically degraded from an original perfect quality image is called the reference image. Image quality assessment (IQA) is a measure to assess the quality of an image in understanding or in reference to the original image. May occur degradations in image quality during reproduction, tra...
Abstract Weather forecasting is the application of science and technology to predict the state of the atmosphere for a future time at a given location. Human kind has attempted to predict the weather since ancient times. Generating predictions of meteorological events is very complex process, because the atmosphere is unstable and the systems responsible for the events are the culmination of the instabilities and involve nonlinear interaction between different spatial scales from kilometers ...
Abstract Background and Aim of the study: antiepileptic drugs such as valproic acid (VPA) and carbamazepine (CBZ) may disrupt renal function. Plama Urea and creatinine may reflect renal dysfunction and may be useful in detecting renal injury. The aim of this study was to determine the levels of plasma urea and creatinine in Sudanese children used antiepileptic drugs (CBZ and VPA). Materials and Methods: this was cross sectional comparative study, conducted from May to September 2019, at Soba...
Abstract In this research work a feasible titanium dioxide photo-catalytic technology for removal of dyes from wastewater was explored in four stages; the synthesis and characterization of two catalysts, optimization of parameters influencing the photo-catalytic process, photo-decolortization process of four different dyes have been investigated to effect of each catalysts and kinetic studies of photo-decolorization of the dyes. The results showed that sol-gel method along with and using tit...
Abstract The fire assay technique is the oldest and most reliable method used to determine gold karat, because of the destruction of gold into pieces and the long time which spent at analyzing; a well powerful for nondestructive analytical analyzer had took it place, it is x-ray fluorescence spectroscopy (XRF) that we used to analysis gold specimens. It is fast and accuracy technique, XRF can provide qualitative and quantitative analysis regarding the thickness of the tested material by meas...
ABSTRACT Plant samples collected within and around Federal University Oye-Ekiti was air dried, pulverized and subjected to hot (soxhlet) extraction and cold extraction using three (3) extractive solvent (ethyl acetate, methanol, n-hexane).' The extracts were seperated from the solvent using rotary evaporator while the crude extracts were subjected to thin layer chromatography (TLC) using different solvent ratio mixtures on a silica gel coated TLC plates. The antibacterial activity of act...
Abstract GC-MS technique was used for determination of chemical constituents of the doum fruit extract. Doum fruits Powder was analyzed by an X-ray fluorescence to determine the major available elemental constituents. The results of GC-MS analysis showed presence of (34) chemical components. The main constituents were Tris(hydroxymethyl) nitromethane (27.67%), 3-omethyl- D-glucose (15.33%), 5-Hydroxymethylfurfural (7.49%), dl-Glyceraldehde dimer (4.19%)and Maltol (3.24%). XRFanalysis indicat...
Abstract Network security is becoming more crucial as the volume of data being exchanged on the internet. A more practical way to protect information is to alter it so that only an authorized receiver can understand it. Security of data and telecommunication can be done by a technique called cryptography. In this thesis Data Encryption Standard algorithm has been improved. Improved algorithm uses input data 512bit and key of 256bit length to encrypt the data. It uses S-boxes similar to those...
Abstract In the present study , the fixed oil of Citrullus Colocynthis was extracted from seeds . The oil was analyzed by gas chromatography – mass spectrometry (GC-MS) and 41 components were identified and quantified. Major constituents were :9,12 –octadecanoic acid methyl ester (39.30%),hexadecanoic acid methyl ester (15.82%),methyl stearate (13,39%)and 9-octadecanoic acid methyl ester (12.51%). Theoil was screened for antibacterial and antifungal activities and different antimicrobial ...