Preferred Language
Articles
/
bsj-7749
Enhancement of corrosion protection of metal carbon steel C45 and stainless steel 316 by using inhibitor (Schiff base) in sea water
...Show More Authors

This research has presented a solution to the problem faced by alloys: the corrosion problem, by reducing corrosion and enhancing protection by using an inhibitor (Schiff base). The inhibitor (Schiff base) was synthesized by reacting of the substrates materials (4-dimethylaminobenzaldehyde and 4-aminoantipyrine). It was diagnosed by infrared technology IR, where the IR spectrum and through the visible beams proved that the Schiff base was well formed and with high purity. The corrosion behavior of carbon steel and stainless steel in a saline medium (artificial seawater 3.5%NaCl) before and after using the inhibitor at four temperatures: 20, 30, 40, and 50 C° was studied by using three electrodes potentiostat. The corrosion behavior was studied by cathode and anode polarization through which all corrosion parameters were investigated which include: corrosion current icorr (1341× 10-7-  5393 × 10-9A/cm2), corrosion potential Ecorr (-1.031-  -0.227 mV vs SCE) , corrosion rates CR (0.658-0.007 mm.y-1), inhibition efficiency %IE (92-98%), and energy activation barriers Ea (4.709-26.733 kJ/mole). The thermodynamic and kinetic properties of the corrosion behavior of these two metals under study, which include: enthalpy ∆H*(2.153-24.176 kJ/mole), entropy ∆S*(-197 -156 J/mole), and free Gibbs energy ∆G*(59.87-74.56 kJ/mole) before and after using the inhibitor, were also studied.

Scopus Crossref
View Publication Preview PDF
Quick Preview PDF
Publication Date
Sat Dec 01 2007
Journal Name
Journal Of Economics And Administrative Sciences
استهداف السعر كأساس لتحقيق تقنية التكلفة المستهدفة للوحدات الاقتصادية العاملة في بيئة الأعمال الحديثة
...Show More Authors

المقدمة

تمثل الأسعار تعبيرا" نقدياً لقيمة السلع والخدمات المقدمة للزبون، وتعد عملية التسعير من العمليات المهمة وذات الأثر البالغ على نجاح واستمرار منظمات الأعمال، نظراً لما لها من تأثير على المقدرة الربحية وإعادة توزيع الدخل القومي المخصص للاستهلاك، إذ أنه بتحديد الأسعار يستطيع الفرد أن يوزع دخله بين ما يعده ضرورياً من السلع وما يعد كمالياً.

وعموماً فإن لعملية التسعير م

... Show More
View Publication Preview PDF
Crossref
Publication Date
Sun Apr 03 2011
Journal Name
Journal Of Educational And Psychological Researches
اثر الانموذج المعملي في تصحيح المفاهيم الرياضية شائعة الخطأ لدى طلاب الصف الاول المتوسط
...Show More Authors

ملخص الدراسة
سعت الدراسة تعرف اثراستعمال الأنموذج المعملي في تصحيح المفاهيم الرياضية شائعة الخطأ لدى طلاب الصف الأول المتوسط بالإجابة عن السؤال "ما اثر استعمال الأنموذج المعملي في تصحيح المفاهيم الرياضية شائعة الخطأ لدى طلاب الصف الأول المتوسط" ولتحقيق هدف الدراسة وضعت الفرضية الصفرية "لايوجد فرق ذو دلالة إحصائية عند مستوى الدلالة (0.05) بين متوسطي درجات طلاب المجموعة التجريبية الذين يدرسون المادة المقرر

... Show More
View Publication Preview PDF
Publication Date
Wed Mar 30 2022
Journal Name
College Of Islamic Sciences
ما خالف به الامامُ ابن السبكي الامامَ الامدي في تشنيف المسامع باب القياس انموذجا
...Show More Authors

The idea of ​​the research at first was to find out about the rare occurrence, which is the occurrence of a violation in the same madhhab and between two Shafi’i scholars such as Al-Amadi and Ibn Al-Subki. The scholarly had some brief and then moved on to the fundamentalist violations that occurred between them in the syllabus of the hearing within the chapter on analogy exclusively. The diffuse division (within the sounding and division) of the observer and the debates, or is it confined to the beholder without the debates, Imam Al-Amadi sees the inadmissibility of analogy with the reasons, while Imam Ibn Al-Subki argues that it is permissible, and Imam Al-Amdi sees that the widespread division is an argument for the observer (Muj

... Show More
View Publication Preview PDF
Crossref
Publication Date
Sun Apr 02 2017
Journal Name
Journal Of Educational And Psychological Researches
أثر برنامج تدريبي لمدرسي الكيمياء على وفق جانبي الدماغ معا في التحصيل الدراسي لطلبتهم
...Show More Authors

 This research aims to investigate the impact of a training program for teachers of chemistry according to the strategies for both sides of the brain together in academic achievement for their students, the sample consisted of a 12 teachers of both genders who are teaching chemistry for the students of the fifth scientific secondary schools of the General Directorate for the Education in Garmiyan/Sulaymaniyah governorate, Iraqi Kurdistan region, where five teachers of them randomly selected to involve the training program, and seven teachers did not participate in the proposed training program, where a sample of students was selected for each group of teachers about 147 male and female students for teachers of the experiment

... Show More
View Publication Preview PDF
Publication Date
Sun Jun 01 2008
Journal Name
Journal Of Economics And Administrative Sciences
منظمات الاداء العالي بحث أستطلاعي في الشركة العامة للصناعات الجلدية والشركة العامة لتصنيع الحبوب
...Show More Authors

This study discussed modern variable in the organizational thought that is the high performance organizations in the two of Iraqi public organizations. The aim of study determines to know the level of the performance in this organizations (high or not). The data was Collected by questionnaire which contain (8) characteristics, the organizational design, strategy, process, technology, leadership, the roles, culture, and external environment). The sample contain from (76) employees;

Results points that the two organizations didn’t reach to the high level of performance, and there are significance's difference  among them.

 

 

View Publication Preview PDF
Crossref
Publication Date
Fri Jun 01 2007
Journal Name
Journal Of The College Of Languages (jcl)
Molla Mehmet Sadık'ın Kerkük'teki Eskide Bulunan Taş Köprü Adlı El Yazısının İncelemesi Açıklaması
...Show More Authors

Yaşıyan kuşağın unutulmaz aruz şairi tanınmış Hacı Mehmet Sadık. İzi
silinmez kaybin, bugünkü eski sitil şiirin gerçek sembolu olup yaşadığı bir çağa
yakın süre içinde yüzlerce ve yüzlerce beyit şiir söylemiş.
Her çevrede Türk doğup Türk yaşamak bahtıyarliğiyle övünen ozanımızın ,
seçkin bir çok şiirleri vardır.
Böylece kitap, dergi ve gazetelerde yayımlanmış sayısız şiirleri yanında
basıma hazır kitaplık şiir ve yazılarıda vardı. Gazetelerde yayımlanan şiirlerini
memleket dertlerine , değerli mert kişilerine gönüllerde yaşıyan ölülerine , yurdu
ve yurttaşı için iyilik güden devlet ve memleket büyüklerine ayırdığını
görmekteyiz.<

... Show More
View Publication Preview PDF
Publication Date
Wed Oct 01 2008
Journal Name
Journal Of Educational And Psychological Researches
الضغوط النفسية والعوامل الاجتماعية المؤدية إلى الإصابة بأمراض القولون ( بحث ميداني في مدينة بغداد )
...Show More Authors

بالنظر الظروف الراهنة التي يمر بها قطرنا ونتيجة للارتفاع معدل الاصابة بالامراض ذات الطابع النفسي جسمي او ما تعرف بامراض سوء التكيف الناتج عن الضغوط النفسية المستمرة.

ارتأت الحاجة الى دراسة هذا النوع من المرض والتي ترجعها الباحثة الى الاسباب التالية :.

1-تعرض المواطن العراقي الى ضغوط نفسية مستمرة متمثلة بحالة الانفلات الامني والشعور بالقلق المستمر المراف

... Show More
View Publication Preview PDF
Publication Date
Sun Jan 01 2012
Journal Name
Journal Of The College Of Languages (jcl)
Die sytaktische Struktur und semantische Bedeutung der konzessiven Ausdrucksmöglichkeiten im Deutschen und Arabischen Eine interpretierende Studie
...Show More Authors

Die vorliegende Forschung erklärt ein sprachliches Phänomen im Deutschen und Arabischen, dessen Aspekte die Grund-Folge-Relation (Kausalität) im Allgemeinen sowie den wirkungslosen Gegengrund (Konzessivität) im Besonderen behandeln.

In diesem Kontext wird der Unterschied der verschiedenartigen Gründe der Kausalität im Deutschen, wie wirklicher Grund (kausal), möglicher Grund (konditional) und wirkungsloser bzw. unzureichender Gegengrund (konzessiv) gezeigt.

Die theoretischen Darlegungen der konzessiven Ausdrucksmittel in dieser Forschungsarbeit werden durch diverse praktische Beispiele aus der deutschen und arabischen Literatur fundamentiert.

Das Hauptziel dieser For

... Show More
View Publication Preview PDF
Publication Date
Tue Jan 01 2008
Journal Name
Journal Of Educational And Psychological Researches
أثر تدريس المواد البيئية في تنمية الاتجاهات البيئية لطالبات كلية العلوم للبنات – جامعة بغداد
...Show More Authors

يهدف البحث إلى استقصاء أثر دراسة طالبات كلية العلوم للبنات في جامعة بغداد لمقرر التلوث البيئي في تنمية اتجاهاتهن البيئية، وذلك من خلال التعرّف على النمو في المستوى العام لاتجاهات الطالبات البيئية والكشف عن الفروق الإحصائية في اتجاهاتهن قبل وبعد دراسة المقرر.

وقد تألفت عينة البحث من(50) طالبة من طالبات قسم الفيزياء / الفيزياء الطبية المرحلة الأولى في كلية العلوم للبنات- جامعة بغداد. اعتمدت ا

... Show More
View Publication Preview PDF
Publication Date
Sat Dec 01 2018
Journal Name
Journal Of Economics And Administrative Sciences
Sustainable Accounting indicators that related with create value for the firm
...Show More Authors

The business environment is witnessing great and rapid developments due to the economic and technological development that has caused damage to human beings, which requires the need to reduce this damage and work to protect the environment and participate in supporting the social aspects. This requires economic resources to be realized by the economic units. Economic development in preserving the environment that has caused damage and supporting the social aspects that preserve human rights, enhance their position and satisfy their needs in society. Global professional organizations, the United Nations and stakeholder representatives have been issuing the Global Reporting Initiative (GRI) to find guidelines for the preparation of

... Show More
View Publication Preview PDF
Crossref (1)
Crossref