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Search Results: 1 - 10 of 1343 matches for " Hussein "
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Pollution of Wells’ Water with Some Elements, Fe, Mn, Zn, Cu, Co, Pb, Cd, and Nickel in Al-Jadriah District, Baghdad Government  [PDF]
Hussein Mahmood Shukri Hussein
Journal of Water Resource and Protection (JWARP) , 2015, DOI: 10.4236/jwarp.2015.71006

Ninety six water samples were collected from eight wells in Al-jadriah district—Baghdad, from June 2010 to May 2011, and analyzed for presence of Fe, Mn, Zn, Cu, Co, Pb, Cd, and Nickel, using Atomic absorption method. Results revealed presence of only scanty amount of iron, Mn and Co, ranged from 0.09 - 0.29 ppm for iron and 0.016 - 0.339 ppm for Mn, and 0.01 - 0.732 ppm for Zn. Concentrations of other elements (Cu, Co, Pb, Cd, and Ni) were nil. All values were below the safe limit of water suitability for human uses, according to safe limits laid down by WHO (2011), Iraqi Measurement and Quality Control System and Iraqi Ministry of Environment. Wells’ water can be used under special management in Water management units.

Energy Efficient Control of Three-Phase Induction Motor Drive  [PDF]
Hussein Sarhan
Energy and Power Engineering (EPE) , 2011, DOI: 10.4236/epe.2011.32014
Abstract: Induction motors are extensively used in industrial and household appliances and consume more than 50% of the total generated electrical energy. The need for energy conservation is increasing the requirements for saving the electrical energy. It is therefore important to optimize the efficiency of electrical drive systems under certain operating conditions. This paper proposes a new control scheme based on search method taking advantage of the fact, that at a certain torque and speed (operating point) there is only one value of stator voltage that operates the motor at optimum efficiency. Simulation performed and results are presented.
Characterisation of Raw Sewage and Performance Evaluation of Al-Diwaniyah Sewage Treatment Work, Iraq  [PDF]
Hussein Janna
World Journal of Engineering and Technology (WJET) , 2016, DOI: 10.4236/wjet.2016.42030
Abstract: These days, water and wastewater treatment are one of the most important issues regarding to the human health. Wastewaters are one of the most environmental pollutants and a wide range of adverse effects linked to the effect of untreated wastewaters or wastewaters that treat improperly. The aim of this present study was to evaluate performance of the wastewater treatment plant at Al-Diwaniyah City according to the national standards. Therefore, data of the most common parameters (PH, BOD5, COD, TSS, PO4, NO3, Cl, and Oil and Grease) were collected from the wastewater treatment plant. The study revealed that the wastewater treatment plant was receiving medium to strong influent with a BOD5/COD ratio of between (0.4 - 0.7). Regression analysis was achieved to approximate the influent of BOD5 and TSS. While the effluent quality was exceeded the Iraq standards for disposing treated wastewater to the water bodies with a fluctuation in the ratio of BOD5to COD as a consequence of the operational problems. Therefore, these results would be of help to planners and policy makers in the City to combat such this problem and to take the necessary actions to reduce the impact of these pollutants.
Effectiveness of Using Natural Materials as a Coagulant for Reduction of Water Turbidity in Water Treatment  [PDF]
Hussein Janna
World Journal of Engineering and Technology (WJET) , 2016, DOI: 10.4236/wjet.2016.44050
Abstract: Coagulation-Flocculation plays a significant role in drinking water treatment. Laboratory experiments were carried out in order to assess the effectiveness of using Conocarpus Leaves Solution (CLS) as a natural coagulant in conjunction with the synthetic chemical represented by Alum in the water purification. Biological test was carried out to confirm that these leaves are not toxic, followed by optimizing the dosage of alum and then Alum and CLS were applied to the turbid water whose turbidity level has two ranges, (20 - 35) NTU and (90 - 120) NTU, using the JAR Test. The parameters determined before and after coagulation were turbidity, pH and temperature. The experiments showed that the optimum dose of alum coagulant (individually) for high turbid water is about 18 mg/l with PH = 7 and 24 mg/l f with PH = 5 and 9. In addition, for the low turbidity water, the optimum dose of alum was lower than in the high turbid water. In terms of using Alum in conjunction with CLS, at high range of turbidity, the results show that at 33% ratio of leaves solution to alum coagulant, there are 50% and 75% turbidity reduction performed for the PH equal to 5 and 9 respectively. Although about 62% and 65% turbidity reduction were achieved at PH = 7 and PH = 9 in the low range level. However, low reduction in turbidity has occurred when the water PH = 5. The amount of leaves solution added to the water in the water treatment plant is highly important, hence it decreases the amount of using the synthetic chemicals by about 33% of the quantity that required for water treatment and that will help both, the water industry and the human health. More studies need to be achieved in particular different concentration of the Conocarpus leaves solution in order to improve the percentage of using the natural material as a coagulant.
Evaluation of Lignin-Calcium Complex as Thermal Stabilizer for Poly Vinyl Chloride  [PDF]
Hussein Ali Shnawa
Materials Sciences and Applications (MSA) , 2011, DOI: 10.4236/msa.2011.26095
Abstract: Chemical modification of lignin was carried out by reacted it with HI acid, then the modified lignin treated with calcium hydroxide to prepare calcium-lignin chelating complex, this derivative was examined as thermal stabilizer for PVC, thermal degradation of PVC neat as blank and containing three weight percents (1, 2, and 4) into polymer was accelerated by heat treatment at 190°C for 2 hr. then PVC films were casting from THF solvent with thickness 0.03 mm. Thermal stabilization activity of this derivative was investigated by using infrared spectroscopy, according to the results obtained calcium-lignin complex have suitable activity to increased PVC stability at low concentration depending on it’s ability to reaction with HCl as well as the chemical structure of lignin that contain phenolic properties.
Double Parton Scattering in Associate Higgs Boson Production with Heavy Quarks at the LHC  [PDF]
Mohammad Yousif Hussein
Journal of Modern Physics (JMP) , 2013, DOI: 10.4236/jmp.2013.44A001

Higgs boson production in association with heavy quarks is one of the most important discovery channels for Higgs particles in the Standard Model and its super-symmetric extension at the LHC pp collider. We review the status of the Higgs boson studies, with particular emphasis on the case bbh and tth production. We present results for the total cross section at Large Hadron Collider (LHC) in both single and double parton scattering mechanism.

Lamotrigine overdose cause skin rash and angioedema  [PDF]
Mohammad Alkayem, Hussein Assallum
Open Journal of Internal Medicine (OJIM) , 2013, DOI: 10.4236/ojim.2013.32016

A 23 years old female presented to Lincoln Medical and Mental Health center with skin rash and angioedema after she received 20 pills of lamotrigine 25 mg, and the patient used to take this medication before two tables a day for many months, after she received the appropriate management she improved. After reviewing MEDLINE we found a few cases reported life threatening complications related to lamotrigine intoxication and sudden increase the dose, so we should be aware about these complications before prescribing this medication.

Synthesis, Characterization, Anti-Bacterial and Anti-Fungal Activities of New Quinoxaline 1,4-di-N-Oxide Derivatives  [PDF]
Dalia Hussein Soliman
International Journal of Organic Chemistry (IJOC) , 2013, DOI: 10.4236/ijoc.2013.33A007

A new series of quinoxaline 1,4-di-N-oxides were synthesized and evaluated for their antibacterial and antifungal activities. The best result was demonstrated by 3-amino-N-(4-methoxyphenyl)-2-quinoxalinecarboxamide 1,4-di-N-oxide 4e, MIC (0.24 μg/ml) against Aspergillus fumigatus, and (0.12 μg/ml) against Streptococcus pneumonia.

Prevalence and characteristics of polycystic ovarian syndrome in a sample of infertile Kurdish women attending IVF infertility center in maternity teaching hospital of Erbil City  [PDF]
Bayan Hussein, Shahla Alalaf
Open Journal of Obstetrics and Gynecology (OJOG) , 2013, DOI: 10.4236/ojog.2013.37104

Objective: To estimate the prevalence of polycystic ovarian syndrome (PCOS), and to compare the clinical, hormonal and ultrasonography features between infertile women with or without PCOS. Design: A descriptive, comparative study. Materials and Methods: This study was conducted from May 1, 2007 to August 1, 2008, in the Infertility Care and IVF center in Maternity Teaching Hospital, Erbil city, Kurdistan region, North ofIraq. A total of 320 infertile women aged 18 - 45 years, were evaluated for clinical features (oligo-/amenorrhea, hirsutism), body mass index, waist-hip ratio (WHR) and hormonal measures. Transvaginal ultrasonography was used to assess the ovarian morphology. The Rotterdam 2003 criteria adopted by the European Society for Human reproduction and Embryology and the American Society for Reproductive Medicine were used to diagnose cases of PCOS. Data analysis was performed using the SPSS version 15. Results: The prevalence of PCOS was 33%. There were a significant differences between the two groups in terms of oligo-/amenorrhea, hirsutism, WHR, and ovarian ultrasound features. There were no significant differences between the two groups in correlations between the level of obesity with the incidences of anovulation, hyperandrogenemia and hirsutism or with hormonal features. Conclusions: A high prevalence rate of PCOS was observed among infertile women attending IVF center using the Rotterdam 2003 criteria for diagnosis.

A Logical Treatment of Non-Termination and Program Behaviour  [PDF]
Martin Ward, Hussein Zedan
Journal of Software Engineering and Applications (JSEA) , 2014, DOI: 10.4236/jsea.2014.77051

Can the semantics of a program be represented as a single formula? We show that one formula is insufficient to handle assertions, refinement or slicing, while two formulae are sufficient: A (S) , defining non-termination, and B (S), defining behaviour. Any two formulae A and B will define a corresponding program. Refinement is defined as implication between these formulae.

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