Mercury can have significant impact on petroleum and related industries, it is also known to poison catalysts used in refining processes.Wet ash methods was widely used in determination of mercury in crude oil but the elemental and organic mercury are volatile and losses are also expected .An investigation of the use of Aqueous solution to prevent loss of mercury during wet digestion resulted in consistently good recoveries from crude oil samples.In this research diluted aqueous solution of sodium polysulfide is used and the parameters studied are polysulfide aqueous solution concentration, time, and ratio of the aqueous solution to crude oil,and will take different forms of heavy crude oil from several fields and the previous measurement of mercury both ways( wet ash) and new (aqueous) and compare the results. The results show that the procedure is reproducible and comparable in accuracy to other establish procedures.
Gallbladder disease is relatively common and its complications are seen every now and then. One of the rare complications is gallbladder perforation. In our case we were faced with a picture similar to perforation of the gallbladder upon surgical exploration, with empyema of gallbladder and pericholecystic abscess and a stonelocated between the gallbladder and the liver bed (inside the abscess) and no perforation in the gallbladder or fistula with the biliary tree could be discerned.
The presented work includes the Homotopy Transforms of Analysis Method (HTAM). By this method, the approximate solution of nonlinear Navier- Stokes equations of fractional order derivative was obtained. The Caputo's derivative was used in the proposed method. The desired solution was calculated by using the convergent power series to the components. The obtained results are demonstrated by comparison with the results of Adomain decomposition method, Homotopy Analysis method and exact solution, as explained in examples (4.1) and (4.2). The comparison shows that the used method is powerful and efficient.
A chemical optical fiber sensor based on surface plasmon resonance (SPR) was developed and implemented using multimode plastic optical fiber. The sensor is used to detect and measure the refractive index and concentration of various chemical materials (Urea, Ammonia, Formaldehyde and Sulfuric acid) as well as to evaluate the performance parameters such as sensitivity, signal to noise ratio, resolution and figure of merit. It was noticed that the value of the sensitivity of the optical fiber-based SPR sensor, with 60nm and 10 mm long, Aluminum(Al) and Gold (Au) metals film exposed sensing region, was 4.4 μm, while the SNR was 0.20, figure of merit was 20 and resolution 0.00045. In this work a multimode
... Show MoreBackground: Human cytomegalovirus (HCMV) infection during pregnancy causing serious problems through induction of viral genes that enhance the expression of different cellular factors ending in failure of pregnancy.
Patients and Methods: Paraffin embedded sections of curate samples were obtained from 34 women had spontaneous abortion, and 5 women had elective termination of pregnancy (as control), and then subjected for immunohistochemistry analysis to detect human cytomegalovirus (HCMV) early protein, and in situ hybridization technique to detect nuclear factor-κB (NF- κB) mRNA.
Results: Only nine out of 34 women with spontaneous abortion were positive for HCMV early protein, with a significantly higher expression of NF-κB in H
Background: Colonic cancer is a very common disease world-wide being fourth most common cancer characterized by abnormal proliferation of the inner wall of colon then taking full colon wall thickness then spreading to surrounding lymph nodes and tissues and finally distant metastasis. It is one of most complicated diseases with debilitating symptoms which becomes more sever , prominent and specific with advancing stage with high percent of fatality and relatively short survival if diagnosed late or if left untreated.
Objective: To evaluate the efficacy of serum CEA & sAPRIL levels in the diagnosis and screening of colon cancer and their validity for this.
Patients and methods: This study was applied on 35 patients with colonic
Study aimed to determination of chitotriosidase-1 levels in Iraqi diabetic and diabetic patients with thyroid disorder. Also, study aimed to found relation correlation for chitotriosidase-1 with FSG, T3, T4 and TSH. Ninety subjects were including in this study. First group consisted of (30) healthy individuals who have no history of any thyroid disorders or diabetes mellitus as control group. Second group (G2) (n=30) patients with diabetic and hyperthyroidism as association disease, and third group (G3) (n=30) include patients with diabetic and hypothyroidism as association disease. Serum used in (FSG, T3, T4, TSH, and Chitotriosidase-1) determination. Results showed a significant elevation in patients’ groups (G2, G3) comparing t
... Show MoreBackground: Glucose -6-phosphate (G6PD) deficiency seems to be a major cause of neonatal hyperbilirubinaemia. This study was carried out to determine the prevalence of G6PD deficiency among icteric neonates in western Iraq and to evaluate its association with hemolysis in neonatal jaundice.
Patients and Methods: All icteric neonates admitted to Al-Ramadi Maternity and Paediatrics hospital, Al-Anbar governorat, for the period from 1st Feb. to 1st Dec. 2006 were included in the study. Data collected from case records and includes age, sex, total serum bilirubin hemoglobin level, reticulocyte count, blood group and Rh of the mothers and neonates, direct coomb's test and peripheral smear. G6PD enzyme
... Show MoreAbstract
In this paper, the solutions to class of robust non-linear semi-explicit descriptor control systems with matching condition via optimal control strategy are obtained. The optimal control strategy has been introduced and developed in the sense that, the optimal control solution is robust solution to the given non-linear uncertain semi-explicit descriptor control system. The necessary mathematical proofs and remarks as well as discussions are also proposed. The present approach is step-by-step illustrated by application example to show its effectiveness a and efficiency to compensate the structure uncertainty in the given semi-explicit (descriptor) control
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