The grey system model GM(1,1) is the model of the prediction of the time series and the basis of the grey theory. This research presents the methods for estimating parameters of the grey model GM(1,1) is the accumulative method (ACC), the exponential method (EXP), modified exponential method (Mod EXP) and the Particle Swarm Optimization method (PSO). These methods were compared based on the Mean square error (MSE) and the Mean Absolute percentage error (MAPE) as a basis comparator and the simulation method was adopted for the best of the four methods, The best method was obtained and then applied to real data. This data represents the consumption rate of two types of oils a heavy fuel (HFO) and diesel fuel (D.O) and the use of tests to confirm the accuracy of the grey model. After obtaining the results, the best method to estimate the parameters of the grey model GM(1,1) is the method of the Particle Swarm Optimization method (PSO) It has been used to treatment the missing values in the data and in the prediction where it has been shown to have the best results
One of the infections that occurred on the Arabic tongue is melody, distortion and intruder, with it Arabic has moved away from classical Arabic, as it was taken from other western and eastern languages, the Arabic language is introduced, in addition to foreign words that are one of the causes of the deviation of classical Arabic in the era of eloquence
يهدف البحث الى القاء الضوء على المدخل السلوكي في المحاسبة ، وبيان المضامين السلوكية للأنشطة الرئيسة للمحاسبة ، وتوضيح مفهوم حث المعلومات في أطار المدخل السلوكي وتأثيره في اعداد القوائم المالية . وبيأن تأثير المعلومات المالية على سلوك متخذي القرارات الاستثمارية ، ولتحقيق اهداف البحث قام الباحث بإعداد أستمارة للأستبانة وعلى وفق مقياس ليكرت الخماسي ، وقد أخذ بنظر الاعتبار في إعدادها التوافق مع خصائص مجتم
... Show MoreMicroalgae have been increasingly used for wastewater treatment due to their capacity to assimilate nutrients. Samples of wastewater were taken from the Erbil wastewater channel near Dhahibha village in northern Iraq. The microalga Coelastrella sp. was used in three doses (0.2, 1, and 2g. l-1) in this experiment for 21 days, samples were periodically (every 3 days) analyzed for physicochemical parameters such as pH, EC, Phosphate, Nitrate, and BOD5, in addition to, Chlorophyll a concentration. Results showed that the highest dose 2g.l-1 was the most effective dose for removing nutrients, confirmed by significant differences (p≤0.05) between all doses. The highest removal percentage was
... Show Moreتتحدد مشكلة البحث الحالي في دراسة العلاقة المتغيرة بين مفهوم الشكل بوصفه ظاهرة مادية (فيزيقية) ؛ يمكن التحكم بها تقنياً، ومفهوم المضمون الذي يمثل جوهر الفعالية المسرحية وانعكاسه جدياً على بنية الشكل، مما يرتد بايجابية على عملية الإدراك لدى المتلقي، فضلاً عن تفاوت الآراء والاتجاهات الفلسفية والنقدية التي تناولت طبيعة هذه العلاقة المتغيرة تبعاً لبنية الزمان والمكان والخلفية المعرفية والفكرية بما يسمح للم
... Show MoreIn this work, a pulsed Nd:YAG laser(out put energy=5J and pulse
duration=300μsec) was used to perform drilling in samples of lead, stainless steel
304, brass, copper and aluminum. Laser irradiation was carried out in both air and
in a suitable chamber of controlled pressure inside. The effect of pressure inside the
chamber on the drilling process was investigated. Then, the chamber was filled with
argon gas to investigate its effect on drilling process where an enhancement in
drilling depth was observed compared to that in case of irradiation in air and
chamber of air pressure. As well, the effect of focus position on the process was
studied with the pressure varying inside the chamber in order to construct a
The revolution in technology made students plagiarize others’ work and submit it as their own. The aim of this study is to find the effectiveness of teaching paraphrasing strategies in reducing students’ plagiarism in university of Baghdad. The Sample of the study is randomly chosen out of eighty, fourth year college students. The materials were taught within eight weeks of instruction about paraphrasing strategies. Results represent that treating the experimental group with paraphrasing strategies have resulted in expanding the range of avoiding plagiarism in the post-test. Moreover, the findings showed that plagiarism is a problem for the students at a college level and their assignment submitted during the course of study includes a
... Show MoreThis research aims primarily to highlight personal tax exemptions A comparative study with some Arab and European regulations. And by conducting both theoretical comparative analyses. Most important findings of the study is the need to grant personal and family exemptions that differ according to the civil status of the taxpayer (single or married). In other words, the exemption increases as the number of family members depend on its social sense. Also taking into account some incomes that require a certain effort and looking at the tax rates, it is unreasonable for wages to be subject to the same rates applied to commercial profits.
Abstract
The research aims to determine the nature of the Iraqi market in terms of banking financial stability and the extent impact of the operational efficiency on it, Accordingly, chosen 15 relational banks were chosen as an intentional sample that could represent the Iraqi banking system for the period 2010-2020. The operational efficiency variable was measured according to the data envelope model, and banking financial stability used CAMELS model which includes five indicators (capital adequacy, asset quality, management quality, profitability, and liquidity), so for testing the research hypotheses used the random regression model by adopting the S
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