الخلاصة ر ة التبخي رة بطريق ة المحض الرقيق ZnSe درس تأثير التلدين الحراري في بعض الخواص التركيبية والبصرية لأغشية ود ة حي لال تقني ن خ اعتين م دة س 373,473 ) م )K راوح رارة تت درجات ح ة ب 550±20 ) والملدن ) nm مك راري بس الح ة الاشعة السينية درست الخواص التركيبية واظھرت بأن الاغشية تمتلك طبيعة بلورية (تركيب مكعب). وبعد اجراء المعامل واص ا الخ ات ام ة الانخلاع ي كثاف ادة ف وري وزي اس البل ي المق ان ف ى نقص دين ادت ال ة التل د ان عملي الحرارية للغشاء وج ي رية الت ة البص وة الطاق بت فج ية حس ف الامتصاص ن طي البصرية فقد لاحظنا زيادة في الامتصاصية ونقصان النفاذية, وم 2.68-2.50 ) ا بعد اجراء الم
Many researchers consider Homogeneous Charge Compression Ignition (HCCI) engine mode as a promising alternative to combustion in Spark Ignition and Compression Ignition Engines. The HCCI engine runs on lean mixtures of fuel and air, and the combustion is produced from the fuel autoignition instead of ignited by a spark. This combustion mode was investigated in this paper. A variable compression ratio, spark ignition engine type TD110 was used in the experiments. The tested fuel was Iraqi conventional gasoline (ON=82).
The results showed that HCCI engine can run in very lean equivalence ratios. The brake specific fuel consumption was reduced about 28% compared with a spark ignition engine. The experimental tests showed that the em
... Show Moreتلعب السياسة النقدية دوراً فاعلاً ومتميزاً في تحقيق معدلات نمو عالية وتحقيق الاستقرار والتوازن الاقتصادي وبالاخص الحد من ظاهرة التضخم.
يمكن حصر اهداف السياسة النقدية في الدول النامية والعربية خصوصاً من خلال التعرف على الاغراض المنصوص عليها في التشريعات وتشمل (تحقيق استقرار نقدي، المحافظة على قيمة العملة، تشجيع النمو الاقتصادي، تطوير الاسواق المالية والنقدية، استقرار الاسعار، تحقيق ال
... Show Moreغالبا ما يؤكد موضوع تحليل البيانات المالية على اختبار عناصر التدفق النقدي لغرض النتبؤ بعوائد الاسهم بالمستقبل ، فضلا عن ان المستثمرين دائما ما يبحثون عن زيادة عوائد الاسهم، وان مثل هذا النوع من التحليل يمكن استخدامه لطبيعة المعلومات المحتواة في عناصر التدفق النقدي ، والدرجة التي على اساسها تنعكس مثل هذه المعلومات المالية في اسعار الاسهم من خلال تقويم القيم السوقية للأوراق المالية فتؤدي إلى تغيير قرارات م
... Show MoreThis research has come out with that strategies made by Porter as generally strategies applicable to any size and type of economic units cannot be applied to many of the economic units in the world in generally and in Iraq especially not a lot of economic units have the resources and competencies that enable them to provide a unique product of its kind in the minds of customers and then adopt a differentiation strategy and not a lot of economic units have the resources and competencies that make them the cost leader. Differentiators and cost leaders are minority in the world while not differentiators and not cost leaders are majority in the world.
The economic units are not differentiators and not c
... Show MoreThe letter is defined as a message directed by the sender to another party, the future. The aim is to convey, clarify or explain a particular point or subject, and in the form of direct oral communication through speech that contains a set of words and words, The future can discuss the sender directly to exchange ideas with each other, or it may be written and in this case does not require direct interaction between the matchmaker and the recipient. As a result of the different sources and topics of the discourse, and the different types of categories addressed to the speech, and the number, it has been divided into several types.
And schools of discourse analysis emerged in the early eighties of the last century and has spread and ha
اِنطلقت فِكرة إعداد هذه الدِّراسة بعد الاِطِّلاع على محاضر مجلس الأُمَّة التركي الكبير، ومعرِفة التشريعات التي تناولت مفاصل الحياة الاِجتماعيَّة في تُـركيا، وبيَّنت هذه التشريعات التي نظَّمت مُستوى العلاقة بين المواطن والدولة، وأسهمت في وضع حلول مُـشكِلاتٍ اِجتماعيَّة عديدة منها؛ ما له صِلة بإجراءات الدولة في رفع المظلوميَّة عن المواطنين الأتراك والمقيمون فيها، مع تشخص بعض الظواهر الاِجتماعيَّة السِّـ
... Show MoreThe aim of this study was to provide an overall assessment to the efficiency of the Iraq stocks exchanges (ISE) through specifying well –known models .First, Fama's efficient market hypothesis as a contrary concept to the random walk hypothesis, was performed and it has been found that ISE follows the random process, so the price of the shares can't be predicated on the basis of past information. Second,we use a multifactor model, which so named multiple regression, to explore the link between ISE and the main economic indicators. our empirical analysis finds that every weak associations exists between major ISE measures and main economic indicators.
Sharif al-Murtada was a historical figure, He is the author of many works in which scientific material is important for scientific studies and research, Because of the importance of his writings and his age, and the impact he left in the intellectual movement was one of the stars of Islamic civilization .
The aim of this study was to study TV advertising and consumer behavior in children and to meet the needs of children. The study included 100 children from Baghdad who were randomly selected from different regions ranging in age from 9-12 years of both males and females. The current research was based on the interview and the completion of special forms prepared for this purpose. This age group was selected for the rare studies conducted on television advertising and limited to different sectors. Data on age and sex were documented, as the results of this study proved The afternoon period was the preferred period for watching the TV show in males, where it was 22%, while the morning period was the female favorite, and it was 23%. The ind
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