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Corrosion Behavior of V2AlC and Cr2AlC Compared with SS 316L in NaOH at Four Temperatures
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Abstract

      This work involves the manufacturing of MAX phase materials include V2AlC and Cr2AlC using powder metallurgy as a new class of materials which characterized by regular crystals in lattice. Corrosion behavior of these materials was investigated by Potentiostat to estimate corrosion resistance and compared with the most resistant material represented by SS 316L. The experiments were carried out in 0.01N of NaOH solution at four temperatures in the range of 30–60oC. Polarization resistance values which calculated by Stern-Geary equation indicated that the MAX phase materials more resistant than SS 316L. Also cyclic polarization tests confirmed the resistivity of MAX phase materials through disappears of hysteresis loop.

Key word: MAX phase materials, Corrosion behavior, V2AlC, Cr2AlC.

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Publication Date
Fri Feb 08 2019
Journal Name
Iraqi Journal Of Laser
Evaluation the Effects of CO2 Laser on Soft and Hard Tissues (in vitro study)
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CO2 laser (10.6 μm) is the most often used laser in the oral surgery due to its high absorption by water of the oral tissues. Several benefits of the use of CO2 laser have been reported for oral surgical procedures. This study aims to evaluate the effect of CO2 laser on soft and hard oral tissues (in vitro study). This study was done on fresh tissues from sheep’s head. CO2Surgical Laser with different operation modes was used; 0.2 mm spot size using different laser parameters on the tongue, and bone making holes, incisions and cutting. The depths and widths of holes and incisions were measured using endodontic file under magnification. The speed of incisions was calculated and the required time for cutting was measured using sport clo

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Publication Date
Wed Jan 02 2019
Journal Name
Journal Of Educational And Psychological Researches
An Instructional Design According to the Active Learning Model and Its Effect on Students' Achievement in Chemistry for Fifth Intermediate Stage
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The objective of the research is to identify the effect of an instructional design according to the active learning modelsالباحثين in the achievement of the students of the fifth grade, the instructional design was constructed according to the active learning models for the design of education. The research experience was applied for a full academic year (the first & the second term of 2017-2018). The sample consisted of 58 students, 28 students for the experimental group and 30 students for the control group. The experimental design was adopted with partial and post-test, the final achievement test consisted of (50) objectives and essays items on two terms, the validity of the test was verified by the adoption of the Kudoric

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Publication Date
Mon Oct 01 2018
Journal Name
Journal Of Educational And Psychological Researches
Mental-math level of intermediate school students
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The study seeks to explore the mental-math level among intermediate-school students. To this end, the researcher raised a question. What the level of mental math among students in the intermediate stage? Total of (576) male and female students were chosen from different schools at Al-karkh side \ general directorate of Baghdad education. So as to answer research question and hypothesis, a questionnaire of (30) items designed by the authors was administered to the study sample. T-test was used to analyze the collected data at the level of significance (0.05). Expectancy means (15) showed significant difference comparing to the achieved mean (10, 10) on mental-math test. The study concluded with students has a low level of mental math. The

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Publication Date
Fri Apr 12 2019
Journal Name
Journal Of Economics And Administrative Sciences
Requirements for the application of quality management in the work of medical laboratories within the standard 15189 "A Case Study at Alawiya Women's and Childbirth Hospital"
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Abstract:

It is essential to provide health care directly or indirectly based on laboratory tests in order of diagnosing diseases. There is an urgent need for the results of such tests to be accurate and reliable. Therefore, the International Organization for Standardization has prepared special standards for medical laboratories to prove their efficiency, presented in standards 15189: 2012. The aim of the research is to determine the possibility of the Al-alwiya Women's Hospital in meeting the requirements of the standards 15189: 2012, which includes administrative requirements consisting of fifteen items and technical requirements consisting of ten items. The research is important because laboratories shou

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Publication Date
Wed Jan 01 2020
Journal Name
Iraqi National Journal Of Nursing Specialties
Effectiveness of Instruction Program on Pregnant Women’s Knowledge regarding Anemia at Primary Health Care Centers in Baquba City
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Objective: to identify the effect of the Instruction program on the knowledge of pregnant women who suffering anemia.

Methodology: A quasi-experimental design was carried out with the application of pre- post test for the study and the control group. Purposive sample, consists of (60) pregnant women diagnosed with anemia attending four health care centers in Baquba city.

Result: The findings indicate that the level of hemoglobin is increasing post instructional program among women in the study group, in which (46.7%) of women are reveal a level of (8.1-9) g/dl that is less than normal pre instructional program and the level is increased to normal level post instructional

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Publication Date
Wed Feb 05 2020
Journal Name
مجلة العلوم السياسية
قراءة فكرية سياسية في التاؤيل الباطني عند الإسماعيلية
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ان للإسماعيلية اهمية كبيرة في التاريخ الاسلامي والفكر السياسي الاسلامي , لما شغلته من حيزٍ كبيرٍ من حيث التنظير و الكتابة و من حيث التطبيق و الممارسة للسلطة السياسية من خلال اقامة دولتهم المنشودة في مصر (الدولة الفاطمية ) , اذ جعلت لنفسها فكراً خاصاً بها وحاولت ان تنشره في بلدان مختلفة من العالم الاسلامي واليوم حضورهم موجود وفاعل ولكن يكتفه الغموض و السرية . وان اهم ما ميز فكرهم السياسي هو اعتمادهم على التأويل ا

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Publication Date
Sat Jan 01 2005
Journal Name
Journal Of The College Of Languages (jcl)
LA TRANSGRESSION CHEZ RIMBAUD Lecture de I' aspect de Transgression dans Marine
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LA TRANSGRESSION CHEZ RIMBAUD Lecture de I' aspect de Transgression dans Marine

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Publication Date
Tue Nov 06 2018
Journal Name
Arab Science Heritage Journal
الفكر الفكر العمراني عند اليعقوبي في كتابه البلدان
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وفي الحقيقة وأنا أكتب عن الفكر العمراني عند اليعقوبي وقفت وقفات طويلة أردت منها أن أحدد المجال الذي أبدع فيه اليعقوبي لكي أوسم موضوع بحثي، كأن أقول عنه الجغرافي أو مهندس أو رحالة أو أديب، لكني وجدته جغرافياً طبيعياً وبشرياً ومهندس بناءً عارفاً بمواد البناء وهندسة البناء وهندسة المساحة والطرق والجسور والهندسة المعمارية، لذا وجدته موسوعة لكل ما كان في عصره من العلوم، فضلاً عن كونه مؤرخاً، له مؤلفة المشهور ((

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Publication Date
Wed Jan 07 2009
Journal Name
Political Sciences Journal
السياسة في الفلسفة الاسلامية : الفكر السياسي عند الفارابي
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السياسة في الفلسفة الاسلامية : الفكر السياسي عند الفارابي

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Publication Date
Wed Nov 14 2018
Journal Name
Arab Science Heritage Journal
اثر أثر العقيدة في ترسيخ التمكين عند المسلمين
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That is feared we frequent urgent calls from Islamic scholars and leaders of the Muslim faithful to their religion and nation to a culturally، economically، politically and militarily Muslim communities، in response to the call of the divine stones in the sit-rope of God and taking the greatest causes of strength and stamina، pride and empowerment، and did not bear fruit this repeated calls only sham gatherings and links formality not have the effect of rewarding challenges، and it was one of the greatest causes of failure that impact the absence of a proper understanding of the basis of the Islamic Alliance، and lack of consensus on the Thoroughbred clear vision of Islamic unity

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