Preferred Language
Articles
/
alkej-142
Study of Mechanical Properties of (Al-Cu-Mg) Alloy Matrix Composite
...Show More Authors

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.

View Publication Preview PDF
Quick Preview PDF
Publication Date
Wed Dec 12 2018
Journal Name
Iraqi National Journal Of Nursing Specialties
Evaluation of Secondary Schools Students' Exposure to Risk Factors in Al-Najaf City
...Show More Authors

Objective: The study aim to evaluate secondary schools students' exposure to risk factors in Al-Najaf City. Methodology: Descriptive study conducted in Al- Najaf City/Iraq on students at secondary schools, those aged (12-24) years old, for the period from the 13ed of November 2015 and up to 4ed of August 2015. The sample included secondary school from those schools . Data is collected through a constructed questionnaire, reliability and students (intermediate and secondary) (540) student; (270) male and (270) females who are selected randomly content validity process has been determined for the instrument. Dat

... Show More
View Publication Preview PDF
Publication Date
Wed Sep 30 2015
Journal Name
College Of Islamic Sciences
Trends of poetic purposes towards praise: Dabal al-Khuzai's poetry is a model
...Show More Authors

Poetic objects may go towards a specific purpose and dissolve and interact with them to produce
A purpose characterized by the title but belongs to the U from afar.
The yarn goes towards praise with a purely horizontal relationship that mentions virtues but crowns them towards women.
In lamentation remember the virtues but crown them towards the dead.
In wisdom remember the virtues but crown them towards time.
In the description remember the virtues but crown them towards nature. All objects are inline
Horizontal We will prove this in the axes of research has required the plan to be a blind, five
The preamble, a brief overview of the life of Dabal All Khuzaie and the works and poets of the first axis
The direction

... Show More
View Publication Preview PDF
Publication Date
Wed Dec 25 2019
Journal Name
Journal Of Engineering
Effect of Tail Regulators on Euphrates River Flood Capacity at Al Nassiriyah City
...Show More Authors

Euphrates River extends about 125 km within the study area located in Annassiriyah City, Dhi Qar Governorate, Iraq. The impact of the seven hydraulic structures on the discharge capacity of the Euphrates River needs to be considered. The main objectives of this research are to increase the discharge capacity of Euphrates River within Annassiriyah City during flood seasons and study the impact of these hydraulic structures on the river capacity by using HEC-RAS 5.0.3 software. Five scenarios were simulated to study the different current condition of Euphrates River within Annassiriyah City. Other additional four scenarios were implemented through river training to increase the river capacity to 1300 m³/s; it is the flood

... Show More
View Publication Preview PDF
Crossref (5)
Crossref
Publication Date
Mon Mar 25 2019
Journal Name
Al-academy
Characteristics of Melody and Rhythm in Baghdadi Al-Murabah Songs: هشام خليل جرجيس
...Show More Authors

The research studies the melody and rhythmic characteristics in the songs of the Baghdadi quartet, as it is a type of popular singing in Iraq, reviewing its origins, social purposes, special and public events in which it is performed. The methodological framework included the problem of the research, the need for it, its importance, its purpose, and the limits of the research which included the objective limit: the songs of the Baghdadi quartet, the spatial limit: the city of Baghdad and the temporal limit (1960-1980) and identifying the terms included in the research.
The theoretical framework consisted of three items: the first is the popular singing, the second is the Iraqi popular singing and the third is the Baghdadi quartet. It

... Show More
View Publication Preview PDF
Crossref
Publication Date
Tue Jan 01 2019
Journal Name
Opcion
Enhancing islamic concepts through English children’s literature: Al-Ibtila, the test of patience
...Show More Authors

Allah, in his Holy Quran introduced great prophet stories so as to learn from. The greatness of these stories lies in Allah himself being the author. He portrays his characters, lays the plot, defines the tests and Al- Ibtilla, provides ways of being patient, using Duaa to end all hard tests and generously describing the greatness of his rewards to all those who are patient. The purpose of this research is to study selected English prophet stories for children on three levels, the stories ability to convey lessons and Islamic teachings to children who do not speak Arabic, the stories portray the Islamic concept of patience, the teaching and learning styles andstrategies that Allah uses with each prophet. The concept of patience is defined a

... Show More
Scopus
Publication Date
Sun Jan 01 2012
Journal Name
Lambert Academic Publishing
Expressions of Gratitude in American English and Iraqi Arabic, Al-Zubaidi Nassier |... | bol
...Show More Authors

Expressions of Gratitude in American English and Iraqi Arabic (). Expressing gratitude is one of the most frequently occurring communicative acts in...

View Publication
Publication Date
Wed Dec 12 2018
Journal Name
Iraqi National Journal Of Nursing Specialties
Assessment of Middle age Women's Knowledge towards Household Hazards in AL –Amara City
...Show More Authors

Objective: The aim of the study is assessing middle age women's knowledge toward household hazards, In primary health care centers at AL-Amara City. Methodology: A descriptive and analytic design is accomplish on non probability (Purposive sample) consisting of 150 middle age women select from four primary health care centers at AL-Amara City (AL-Uroba Primary Health Care Center,AL Zahraa Primary Health Care Center ,AL Hasen AL-Askerry Primary Health Care Center ,and Ali AL-Ridha Primary Health Care Center.) These centers are choose randomly from 21 primary health care centers in the first sector. The study is

... Show More
View Publication Preview PDF
Publication Date
Mon Jan 01 2018
Journal Name
Aip Conference Proceedings
Indoor 222Rn measurement and hazards indices in houses of Al-Najaf province – Iraq
...Show More Authors

View Publication
Scopus (4)
Crossref (4)
Scopus Clarivate Crossref
Publication Date
Tue Dec 03 2013
Journal Name
Ibn Al-haitham Journal For Pure And Applied Science
New adaptive satellite image classification technique for al Habbinya region west of Iraq
...Show More Authors

Publication Date
Sat Aug 23 2025
Journal Name
Mustansiriya Medical Journal
Dermatological Diseases among children Attending Al-Yarmouk Teaching Hospital-Outpatient Department of Dermatology
...Show More Authors

View Publication