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Study of Mechanical Properties of (Al-Cu-Mg) Alloy Matrix Composite
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The present research had dealt with preparing  bars  with the length of about  (13 cm) and  adiametar  of  (1.5 cm) of composite materials with metal  matrix  represented by (Al-Cu-Mg) alloy cast enforced by (ZrO2) particles with chosen weight  percentages (1.5, 2.5 ,3.5, 5.5 %). The base  cast and the composite  materials were prepared by casting method by uses vortex  Technique inorder to  fix up (ZrO2) particles in homogeneous way on  the  base cast. In addition to  that, two main groups of composite materials were prepared depending on the particles size of (ZrO2) , respectively.                  

     The study also contained the effect of insolution heat treatment at (505 0C) and the following forming process in addition to aging process at (185 0C) during different periods for all the prepared models. Also we caried on the study of the effect of reinforcement the base cast process with zerconia particles (ZrO2) on some of its mechanical properties. The optical microscopy test should that the microstructures of the composite materials having fine grains as comparet with large grains more of the base cast.  As for hardness test & tensile test results showed an increase in hardness & tensile strength in addition to the increase in (ZrO2) that was added to reach the highest values when the weighted percentage of 3.5% and the amount of(140H.V),(570MPa) respectively. It was noted that the ductile values are reduced

continuously with the   increase of the added (ZrO2) .                                                                                      

     The effect of particle size of (ZrO2) particles on the mechanical properties, it was noted that there was a little reduction in the values of hardness and tensile strength with an increase of the particle size of (ZrO2) bat remains higher than in the base cast and the amount of(110H.V),(210MPa) respectively. While there was an increase in the ductilevalues with increasing the particle size but they still less than in the base cast.

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Publication Date
Sat May 01 2021
Journal Name
Journal Of Physics: Conference Series
Synthesis and Study Antibacterial Activity of Some New Polymers Containing Maleimide Group
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Abstract<p>By condensation of benzaldehyde with thiourea in absolute ethanol in the presence of glacial acetic acid as a catalyst, the Schiff base(1-benzylidenethiourea)[I] was synthesized by synthesis of 4-(3-benzylidenethioureido)-4-thioxobut-2-enoic acid compound[II] by reaction of maleic anhydride with schiff base [I] in DMF. When treating compound [II] with ammonium persulfate (NH4)2S2O8 (APS) as an ethanol initiator to obtain polymer [III], compound [III] reacted to polymer [IV] with SOCl2 in benzene. Sulfamethizole, celecoxib, salbutamol, 4-aminoantipyrine to yield polymers [V-VIII], compound [IV] reaction with different drugs. Spectral evidence established the structure of synthesized compounds: FTIR an</p> ... Show More
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Publication Date
Thu Jul 02 2020
Journal Name
International Journal Of Pharmaceutical Research
Synthesis and Characterization of Some New Heterocyclic Compounds and Their Antibacterial Study
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Publication Date
Tue Nov 01 2022
Journal Name
Reports Of Biochemistry And Molecular Biology
Comparative Study of New Biomarkers in Iraqi DM2 with and without Complications
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Publication Date
Mon Jun 03 2024
Journal Name
Journal Of Kufa For Chemical Sciences
Synthesis and Preliminary Biological study of New Chalcone Derivatives Containing Isoxazoline Moiety
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                          In this research work, synthesis, antimicrobial and antioxidant bioactivity of a chain of compounds having unsaturated ketones bond and isoxazoline moiety have been described. New chalcone derivatives containing isoxazoline moiety have been synthesized. Generally, Chalcones are unsaturated ketones bearing (-CO-CH=CH-) as reactive ketoethylenic group that give the bright yellow colored compounds due to this chromophore group.  Firstly, chalcones (IIa-d) have been prepared by cyclocondensation (Claisen-Schmidt condensation) of triphenyl aminobenzaldehyde with different substituted acetophenone in ethyl alcohol to produce a series of chalcones compounds with bright yellow colored as a

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Publication Date
Sun Mar 27 2022
Journal Name
Journal Of The College Of Basic Education
A Cross-Cultural Study of Criticism Strategies: Iraqi and Malay ESL Learners
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        Criticism, as an evaluative criterion, is a significant speech act for English language learners to improve their speech and actions in their academic life. Yet, it is realized differently across diverse cultures. Few studies have shown that the linguistics forms of one language are different from those available in another language. Hence, this study aims to investigate the cross-cultural similarities and differences between 60 Iraqi and Malay university learners in the use of criticism strategies. The data are collected using a Discourse Completion Test (DCT) and a Focus Group Interview (FGI). The data are coded based on Nguyen’s (2005) coding scheme of criticism in terms of the realization strategies. Qualitative

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Publication Date
Thu Oct 31 2019
Journal Name
Journal Of Engineering And Applied Sciences
Feasibility Study of Applying a Pattern Waterflood Without and with Peripheral Injectors for Maximizing Oil Recovery Under Limited Water Sources Availability A Case Study of Heterogeneous Giant Carbonate Reservoir
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Publication Date
Fri Jun 01 2018
Journal Name
Journal Of Accounting And Financial Studies ( Jafs )
Employment cost management tools in the fast-track method Of the constructionindustries for the purpose of rationalizing costs: An applied research in the Shatt al-Diwaniya transference project General Authority for projects of irrigation and reclamation
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The important factor in the success of construction projects is its ability to objective estimate of the cost of the project and adapt to the changes of the external environment, which is affected by a lot of elements and the requirements of the competitive environment. The faces of those projects are several problems in order to achieve particular goals. To overcome these difficulties has been the development of research in the last two decades and turn the focus on the role of the cost of project management, by providing information and assist management in planning and control of the budget among the main elements of the project, namely, (time-cost-quality),The research aims at the possibility of developing and implementing mechanisms

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Publication Date
Sun May 02 2021
Journal Name
Journal Of Accounting And Financial Studies ( Jafs )
The level of Trends banking leaders towards organizational confidence and its and reflection on the dimensions of the strategic position: An applied research in Egypt in Al-mansour Investment and the Business Bay
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The aim of this research is to show the level of banking leadership trends in the importance of  organizational  confidence and its reflection in the dimensions of the strategic position the research was applied in a bank (Al- Mansour Investment, Business Bay), and the Questionnaire Was adopted as a tool to collect data and information from the number of the sample (15) who are in allocation (Department Manager, Department Manager Department Manager, Division Officer, Unit Officer) and he used the statistical program (spss) to calculate (standard deviation, arithmetic mean, percentages, regression, analysis,F-test coefficient of determination R2, Coefficieent, square Kay and the research reached a number of conclusions, the mos

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Publication Date
Sun Dec 01 2019
Journal Name
Journal Of Accounting And Financial Studies ( Jafs )
دراسة حالة: Case Study
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The purpose of this research is to demonstrate the impact of deposit insurance to reduce banking risks, as banks in various countries of the world face a variety of risks that led to banking and financial crises that led to the failure and bankruptcy of many of its bank, which led to the banks to find quick and appropriate solutions to get rid of these difficulties These solutions include the use of bank deposit protection system for the many risks and sequences of crises that accompanied the Iraqi banking work of thefts, forgery, embezzlement and changing and unstable circumstances. The importance of studying the subject of research through the theoretical framework of banking risks as well as the framework of consideration In order to

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Publication Date
Mon Nov 30 2020
Journal Name
Journal Of Economics And Administrative Sciences
Analysis of women's job offer through entrepreneurship The case of Algeria
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The aim of this scientific paper is to highlight the effective role of women working in economic development, especially those working in the entrepreneurial sector, which we see as encouraging at the macro-economic level and at the personal level, by highlighting their potential to help them enter the private labour market, value them and empower their role in the economic arena in order to win this bet to become productive and effective workers at all levels.

Through this paper, we will try to highlight the role of Algerian women's contribution to economic development through access to the world of entrepreneurship, and we will also try to find statistics on their success levels at the local and interna

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