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PDF Mechanical Properties of AISI 316L Stainless Steel Produced Via Selective Laser Melting
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Abstract Additive manufacturing has been recently emerged as an adaptable production process that can fundamentally affect traditional manufacturing in the future. Due to its manufacturing strategy, selective laser melting (SLM) is suitable for complicated configurations. Investigating the potential effects of scanning speed and laser power on the porosity, corrosion resistance and hardness of AISI 316L stainless steel produced by SLM is the goal of this work. When compared to rolled stainless steel, the improvement is noticeable. To examine the microstructure of the samples, the optical microscopy (OM), scanning electron microscopy (SEM), and EDX have been utilized. Hardness and tensile strength were used to determine mechanical properties. The results indicated that the samples were completely dissolved, and the hardness was 285HV. Compared with the models produced by other parameters, the best 0.3% porosity was obtained using 100 W laser power, a hatching distance of 70 µm, a layer thickness of 30µm, and a scanning speed of 600 mm/sec. In addition, the volumetric energy density value for the best result was 79 J/mm3.

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Publication Date
Tue Mar 30 2021
Journal Name
Iraqi Journal Of Science
Treatment of Radioactive Liquid Waste Using Bentonite
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Radioactive liquid waste contaminated with cesium-137 found in the radiochemistry laboratories at Tuwaitha site, south of Baghdad, was treated in this work. Bentonite was used as a sorbent material for the removal of radioactive cesium-137 from liquid waste by ion exchange method. The results indicated that the best removal efficiency obtained was 95.13% with experimental conditions of 2 h mixture time, 0.04 g sorbent mass, and pH=10 for the radioactive liquid. It was found that the experimental results match well with Langmuir and Freundlich models, with better matching with the latter.

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Publication Date
Sun Jan 03 2016
Journal Name
Journal Of The Faculty Of Medicine Baghdad
The speed of eating and functional dyspepsia
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Background: dyspepsia is a common complaint, affecting about 26-41% of the general population. Investigations fail to identify organic cause in 50%–60% of functional dyspepsia. Little informations are available about whether quick eating is one of the risk factors for functional dyspepsia (FD).
Objectives: To study the association between quick eating and FD.
Materials and methods: The study was performed on 132 resident doctors in the medical city/Baghdad, by introducing a questionnaire derived from the Rome III criteria for diagnosis of FD and its subtypes and calculating the average daily meal duration for each one. The subjects were all Arabian, Iraqi, white resident doctors sharing the same type and amount of food. We exclud

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Publication Date
Sat Dec 24 2022
Journal Name
Journal Of Legal Sciences
The Nature of the Exoneration : Comparative Study
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The obligation in accordance with the provisions of the Iraqi Civil Code to meet the obligation to meet the charge for the acting renewal in loyalty, clearing, union of disclaimer, acquittal, impossibility of implementation and statute of limitations. However, the subject of our study will focus on one of these reasons, which is exoneration, but we will not deal with the provisions of acquittal in general, as we chose the nature of the acquittal as the target of this study because it provoked a doctrinal debate among Islamic doctrines, as this study lacked to examine the nature of the acquittal by comparing Islamic jurisprudence with civil laws.

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Publication Date
Sat Sep 21 2019
Journal Name
Journal Of The College Of Education For Women
Translation of Polysemous Words in Harry Potter
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The paper pays attention to the polysemous words Harry Potter (HP). In this story, the present study exams some picking polysemic words to the extent that the translators of HP prevail to render the proposed significance as per the setting of the first content. Obviously, the picking translators in this examination were not mindful of the wonder of polysemy in the HP. They embrace a strict interpretation methodology to pass on the greater part of the polysemic sense. The method of data collection is divided into two stages. Firstly, determining the situational context of the fantasy and identifying the polysemic sense to clearly make all the contextual meanings of the source text. Secondly, reviewing the selected translation to

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Crossref
Publication Date
Sun Dec 30 2001
Journal Name
Iraqi Journal Of Chemical And Petroleum Engineering
Removal of Chromium from Wastewater by Adsorption
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Publication Date
Tue Dec 30 2014
Journal Name
Iraqi Journal Of Chemical And Petroleum Engineering
Heat Transfer Efficiency of Different Composite Insulators
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This research aims to investigate the thermal performance of different thermal composite insulators, wrapped around a closed-loop copper pipe (CLP). To achieve this aim a system was designed and manufactured. It is consisted of closed water tank insulated by Rock Wool, and supplied with two electric heaters, two thermostat, a flow meter, a water pump, digital temperature scales, and four series of (CLP).
Six insulators were prepared namely; composites of Impregnated Fiberglass with Elastoclad and foaming Rubber (FER), Impregnated Fiberglass with Elastoclad resin and Polymeric Membrane (FEM), Impregnated Fiberglass with Polyurethane thermoset resin and Foaming Rubber (FUR), Impregnated Fiberglass with Polyurethane thermoset resin and P

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Publication Date
Sun Jan 01 2017
Journal Name
Journal Of Engineering
Evaluation of Textile Filter in Field Drains
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The role of drain in agricultural lands is to remove excess surface and subsurface water to create a good environment for root growth and to increase crops yield. The main objective of this research was to evaluate the performance of closed drains when using textile filter instead of crushed gravel filter. The research has been executed in the laboratory using a sand tank model and by using two types of the soil. One of soils was light soil (sandy soil) and the other heavy soil (loamy soil). The tests were classified into four cases; each case was supplied discharge during 10 days. The results showed that the amount of out flow when using graded crushed gravel filter is greater than the amount of out flow in case of usin

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Publication Date
Tue Mar 14 2023
Journal Name
Iraqi Journal Of Science
Synthesis of new quinoline -2-one derivatives
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Series of new derivatives of quinoline-2-one were synthesized ,m-cresol was chosen as the starting material which was reacted with ethyl acetoacetate in presence of conc.sulphuric acid to give 4,7-dimethyl coumarin (I) which treated with nitric acid in the presence of sulpharic acid afforded 4,7-dimethyl-6-nitrocumarin (II) and 4,7-dimethyl-8-nitrocumarin (III) and then the compound (II) was treated with hydrazine hydrate80% to give a new compound 1-amino-4,7-dimethyl-6-nitroquinoline-2(1H)-one (IV).The latter compound was used to synthesize different
compounds via the reaction with aldehydic azo compounds (V-VII) by Schiff base reaction to prouduce compounds(VIII-X), these azo compounds were prepared by reaction of different aromatic

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Publication Date
Fri Sep 02 2022
Journal Name
Journal Of Legal Sciences
Elements of a standard criminalizing domestic violence
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          Domestic vilonce comprises a unique privacy regarding indictment and eliminating such a behviour requires a precise standard for the sake of punishing those involved and also requires to be controlled in order not to be mishandled by others. This is imprtant for this behviour  to be included by the lawful model that provides a punishment frame. This has drvied the researcher to start this study with this elements that formulate a criterion for indictment such a behviour. and in the same way the researcher has covered the family  limits that includes the history of the marriage relationship, ending with what has the lawgiver set    of limits and affinity degre

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Crossref
Publication Date
Tue Oct 11 2022
Journal Name
College Of Islamic Sciences
Judgment of the judge with his knowledge
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The summery of my research marked by the judges judgment with his knowledge, I dealt with the definition of the judiciary, linguistically and idiomatically, and the importance and ligitimcy of the judiciary, as the judiciary is one of the most importunt pillars of lslam,inwhich justice as it proves the truth to its owners.

 

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