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قياس ودراسة تراكيز بعض الملوثات الهوائية في مدينة بغداد == Measurement and study concentrations some air pollutants in Baghdad city

اسم المؤلف: باسم محمد هاشم
اسم المشرف: قاسم محمود السعدي | ميثم عبد الله سلطان
الموضوع العام: علوم الجو
السنة: 2009
الموضوع الدقيق: علوم الجو
الدرجة: ماجستير
اللغة: العربية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: تم قياس تراكيز الملوثات الهوائية المتمثلة بالدقائق العالقة الكلية(TSP) والرصاص(Pb) واكاسيد الكربون(CO , CO2) وغاز ثاني اوكسيد الكبريت(SO2) وغاز ثاني اوكسيد النتروجين(NO2) وغاز كبريتيد الهيدروجين(H2S) في مدينة بغداد من خلال عدة محطات قياس بلغ عددها(22) محطة موزعة في مناطق مختلفة، وجرى تصنيفها الى محطات (صناعية وتجارية وسكنية). اظهرت نتائج قياس تراكيز الملوثات الهوائية في مدينة بغداد ولمدة تعرض ساعة واحدة ان تراكيز الملوثات(TSP,CO,CO2,NO2) قد تجاوزت المحددات القياسية المسموح بها محليا وعالميا لملوثات الهواء ولمحطات القياس جميعها. كذلك تركيز الرصاص(Pb) (باستثناء منطقتي الحرية والدورة)، كذلك فان اغلب المحطات قد تجاوز فيها تركيز غاز(SO2) المحدد المحلي والعالمي المسموح به. وان تركيز غاز(H2S) قد تجاوز الحدود القياسية المسموح بها في(7) محطات، اما المحطات الاخرى فان تركيزه كان اعتياديا. اشارت العلاقة بين عناصر الجو وملوثات الهواء الى وجود تاثير لسرعة الرياح ودرجة الحرارة على تركيز الملوثات الهوائية ضمن الدراسة الحالية. جرى استخدام التحليل المكاني الذي يوفره برنامج (ArcGIS 9.2) لاعداد خرائط للملوثات الهوائية وكذلك برنامج (ERDAS 8.4) لاجراء عملية التصنيف المراقب لاستخدامات الاراضي في مدينة بغداد باستخدام صورة القمر الصناعي (Landsat 7 ETM+) وتحويل قيم العدد الرقمي (DN) لمواقع القياس الارضية الى درجة الحرارة السطحية (LST) ضمن الحزمة تحت الحمراء الحرارية السادسة (TIR6). اظهرت نتائج استخدام التحليل المكاني ارتباط تركيز الملوثات الهوائية المنبعثة من مواقع القياس مع استخدامات الارض المختلفة لمدينة بغداد. كذلك اشارت المقارنة بين التحليل المكاني لدرجة الحرارة السطحية المستخرجة من بيانات الصورة الفضائية والتحليل المكاني لدرجة الحرارة الهواء التي تم تسجيلها خلال القياسات الارضية وكذلك نتيجة معامل الارتباط (r) بين درجة الحرارة السطحية وتراكيز الملوثات الهوائية الى امكانية تحقيق الترابط بين البيانات المستخرجة من الصور الفضائية خاصة البيانات التي توفرها الحزمة (TIR6) للقمر الصناعي (Landsat 7 ETM+) والقياسات الارضية للملوثات الهوائية. | The air pollutants concentrations measurement such as Total Suspended Particles (TSP), Lead (Pb), Carbon Oxides (CO,CO2), Sulfur Dioxide (SO2), Nitrogen Dioxide (NO2), and Hydrogen Sulfide (H2S) in Baghdad city by several stations Measuring numbered (22) stations located in different regions, and were classified into(industrial, commercial and residential) stations. The results of measuring the concentrations of air pollutants in the city of Baghdad and the exposure period one hour that the concentrations of pollutants (TSP, CO, CO2, NO2) have exceeded the allowable standard determinants of local and International air pollutants and measuring stations, all of them. As well as the concentration of lead (Pb) (except for Al Hurria and Al Dorah areas), as well as the majority of the stations has exceeded the concentration of (SO2) selected local and International limit. The concentration of (H2S) has exceeded the standard allowed in (7) stations, while the other station, the focus was the norm. Noted the relationship between the elements of air and air pollutants to the existence of the impact of wind speed and temperature on the concentration of air pollution. Used for spatial analysis provided by the program (ArcGIS 9.2) to prepare maps of air pollution as well as the program (ERDAS 8.4) for the classification process observer for the land use in Baghdad city of, using the satellite image (Landsat 7 ETM+) and the conversion of Digital Number (DN) for ground - based measurement sites to Land Surface Temperature (LST) in the package under the thermal infrared sixth (TIR6). The results of the use of spatial analyst association concentration of air pollutants emitted from the measurement sites with different land uses for Baghdad city. Also noted the comparison between the spatial analysis of surface temperature derived from satellite image data and spatial analysis of air temperature that was recorded during the ground - based measurements as well as by the correlation coefficient (r) between surface temperature and concentrations of air pollutants to the possibility of achieving coherence between the data derived from satellite imagery, especially data provided by the package (TIR6) satellite (Landsat 7 ETM +) and ground - based measurements of air pollution

تمييز بعض الحالات الغبارية باستخدام صور القمر الاصطناعي تيرا مودس == Recognition of some dusty pattern By Terra MODIS Satellite Images

اسم المؤلف: ازهار كاظم الحميداوي
اسم المشرف: قاسم محمود السعدي
الموضوع العام: علوم الجو
السنة: 2009
الموضوع الدقيق: علوم الجو
الدرجة: ماجستير
اللغة: العربية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: يتعلق موضوع البحث بظاهرة العواصف الغبارية (Dust Storms) التي تحدث فوق العراق ، ومما لاشك فيه ان هذا الموضوع يكتسب اهمية كبيرة نظرا لتاثيراته في البيئة وعلى العديد من الظواهر الاخرى ذات العلاقة . وقد تم دراسة هذا الموضوع باستخدم الصور الفضائية ومعالجاتها الرقمية ، اذ استخدمت الصور الفضائية الملتقطة بوساطة المتحسس (MODIS) المحمول على متن القمر الصناعي (Terra) . في البدء تم اجراء عمليات التصحيح الهندسي على الصور؛ وذلك ليتسنى تحويلها الى خرائط تصويرية يمكن من خلالها اجراء القياسات المتعلقة بتحديد الموقع ، وتحديد المسافات والمساحات للظواهر المختلف وتضمن العمل ايضا استخدام معالجات رقمية مختلفة على الصور الفضائية فبالاعتماد على القواعد الاساسية العامة في التفسير البصري ( الشدة اللونية Tone , النمط Pattern ,النسيج Texture,الشكل Shape ) فقد امكن بشكل اولي تمييز الانماط الرئيسة في العواصف الغبارية. اما بالنسبة لنتائج المرشحات الحيزية ، ونتائج تحسين الاضاءة والتباين ، فقد اظهرت الكثير من التفاصيل النسيجية المختلفة في انماط العواصف الغبارية التي يتعذر كشفها بدون اجراء هذه العمليات، وكذلك فقد اعتمدت طريقة التصنيف غيرالموجه (Unsupervised Classification)؛ لغرض تحديد الانماط المختلفة للعواصف ، .ولقد قدرت سرعة تلك العواصف بالاعتماد على تقنيات الصور الفضائية ، وقورنت مع الطرائق الانوائية التقليدية ، واشارت النتائج الى دقة هذه الطريقة . ومن النتائج التي توصلنا اليها هي ان مصدر بعض العواصف الغبارية التي حدثت فوق العراق هي مناطق في شرق سورية ، والتي تعاني من ظاهرة التصحر، واستنادا الى نتائج البحث فقد تم تمييز اشكال محددة لهذه العواصف كالشكل الصفائحي (Platy ) , الخلوي ( Cellular) ،والكتلي (Massive) ، وظهرت النتائج ايضا ان هذه الانماط تتاثر بعوامل انوائية كسرعة الرياح واتجاهها. | The emphasis has been concentrated in this study on the dust storm , which took place above Iraq . Undoutedly, this subject has a great importance because of its efficiency on the environment as well as on other phenomenoa . This was done by using satellite images and digital processing .the space images taken by the sensor MODIS brone on satellite Terra. In the beginning Geometric Correction was done for the images , Thus , it will be transformed into photo maps through to be possible to take the measurement related to the location , and determine the area of various phenomena with in the dust stor .The work includes the application of different digital processing. Depending on the basic rules in the visual interpretation (tone, pattern , texture and shape ) , it was possible to detect the main patterns of dust storm . For the results of spatial filtera , brightness and contrast , they showed different details in the patterns of dust storm, which cannot be detected with out making these operations. In addition , the method of unsupervised classification has been used to detect the different storm patterns. The speed of these storm were assessed using the techniques of satellite images and then compared with the traditional meteoric methods which indicate the accuracy of this method . Among the many results to which the researcher has been taken , The source of some dust storm. The source of some dust storms that take place over Iraq are region located in eastern Syria that suffers form.desertification Upon these result, certain patterns of storms such as platy, celluar and massive shapes the results also showed that these patterns are influenced by certain meteoric factors such as speed and direction of the wind.

تاثير المناخ على امراض الجهاز التنفسي (حساسية الجهاز التنفسي والربو) في محافظة البصرة : دراسة في المناخ التطبيقي

اسم المؤلف: ايمان نعيم غضبان محمد
الموضوع العام: الجغرافية
السنة: 2009
الموضوع الدقيق: الجغرافية الطبيعية
الدرجة: ماجستير
الجامعة: جامعة البصرة
اللغة: العربية
مكان الجامعة: البصرة
الصفحات الاولى:
المستخلص: Study of climate in Basrah and its impact on Asthma and other diseases of the respiratory system have revealed the following : - 1. Climate is the most effective factor in the study. Rise of temperature, increase of evaporation and the little humidity content in soil because of the little rainfall make it possible for the wind, particularly north and northwestly wind that is dominant in the area under study, to carry the decomposed particles of soil. This is particularly true in case of the alleviatory plain which constitutes a %50 of the area of the governorate. This area is characterized by being generally plain from the north to the south and that makes it easy for the wind to blow from it. These factors greatly affect the soil in many places in the governorate; especially its western part and the unused lands in the alleviatory plain because of lack of agriculture and of natural plants which protect soil. Because of all these reasons, dust increases in the area under study.2. Areas outside the range of the study have obvious effect on carrying the particles of soil from the surrounding governorates like Thi Qar and Muthana. Thi Qar, in particular, witnesses repeated dust storms. This, in turn, increases the amount of dust in the western part of the area under study. Most of the lands in these governorates are arid and dust coming from them dominates when northwestly wind blows. Dust may come from the deserts in the neighboring countries such as the Arab Peninsula, the great African desert, sham desert and Sinai. Increased iron in the dust of the area under study is brought by the dust storms coming from the neighboring countries to the governorate. These are also other factors that increase asthma and other diseases of sensitivity in the respiratory system.3. Dust increases in summer because of rise of temperature. Variation of temperature during the day leads to prevalence of dust. Also, currents that carry dust are made, more upwards and draw the dust particles from their sources. Therefore, dust prevails in the governorate is the afternoon when temperature is the highest during the day. 4. The water surface (marshes and swamps) in the eastern part of the governorate that occupy big area (3182 Km2) of the land during flood decrease the rate of asthma and other sensitivity diseases of the respiratory system in the towns and municipalities of the governorate such as Qurna and Mediana where these surfaces become places for settling dust and soil down. This is contrary to the case is the western part of the governorate where there are no such water surfaces. But, sometimes, these water surfaces have negative impact on the population in the governorate when temperature rises and humidity increases during summer and the weather becomes very tiring especially when the wind is still. The area under study is affected by the Arabian Gulf when the south easterly wind that is filled with humidity blows during summer. Because of this wind, patients of asthma, in particular, suffer repeated symptoms of the diseases.5. The rate of the diseases under study increases in the governorate in : a. Spring because of the existence of pollen and residue of the insecticide and fertilizers in air. b. Autumn in comparison to summer because of rising in temperature and increase of humidity in the atmosphere. c. Winter because of the low temperature and the high relative humidity.d. The many periods of heat rise in summer.6. Man contributed a lot to the increase of rate of diseases of the respiratory system in the area under study particularly after 1990. The year 1991 witnessed the highest rate of dust storms. Soil was very highly decomposed because of the movements of the explosives that were used, the different soil barriers that were made and man’s wrong practices in agriculture and grazing. Man, also, does not follow the appropriate means to stop sand dunes that reach many forms, factories and roads.7.Means of transportation in most areas of the governorate cause increase of still and moving dust because they are usually not good for movement and transportation. Any movement of these means causes dust. Besides, means of transportation release different dangerous pollutants that negatively affect the respiratory system.8. Petroleum refineries, electricity power stations, flour mills and ice factories are located near the population areas. This means that little care is given to the palming of the governorate. These establishments are also, reasons of such diseases. 9. Basrah, particularly recently, is exposed to dust because of the little green area in and around it. Construction processes reduce such areas that work to refresh and refine air. It is, therefore, very necessary to full the empty spaces with trees, to take care of private and public gardens and to clean roads and allocate specific places for gar bage. Besides, old wet houses in some places in the governorate contribute to increasing the diseases under study.10. Wet salty lands in Basrah governorate are considered as a type of desertification that pollutes air with salt and diminishes many lands that are fit for forming. 11. All the above mentioned reasons raise the number of patients of asthma and other sensitivity diseases of the respiratory system. The total number of such patients was during the time of the study as following : 85320 patients of sensitivity diseases and 119366 patients of asthma

الردة في جنوب شبه جزيرة العرب (10 - 12هـ) : دراسة تاريخية == Apostasy in the South of Arab Peninsula (10 - 12 A.H) Historical Study

اسم المؤلف: عمر امجد صالح
اسم المشرف: هاشم يونس عبد الرحمن
الموضوع العام: التاريخ
السنة: 2009
الموضوع الدقيق: التاريخ الاسلامي
الدرجة: دكتوراه
اللغة: العربية
مكان الجامعة: الموصل
الصفحات الاولى:
المستخلص: Islam in A.D. seventh century was considered a great event, but rather a great reforming movement which has been witnessed by the world along its long history; and many sequential reforming movements have been appeared in the world, but they did not success in changing the prevalent corruptive situations, and crushing the anxious circumstances which were facing the world in that time. Islam has affirmed since its beginning, that it is a general universal religion, which is suitable for every time and place, and even for every gender and mind, and for every degree of civilization; and with its nature represents a comprehensive civilization, which leads the human to the highest ranks of life, and achieving the development of humans, and solving the political and social problems, and it calls for unity, brotherhood, liberty and equality. Whatever the Arabs had have a great civilization heritage and a prominent role in the old ages, but their great historical role appears clearly in the state they made after Islam, and in the prosperous civilization whom they made its bases with their guidance and supervision till it extends behind their state's borders. Because Islam was considered a great event, it was to face a conflict and hostile movements, and Islam has faced in the era of the prophet Mohammed (peace be upon him) many conflict movements; the first one was led by Quraish leaders in Makka for thirteen years, then the migration of the prophet Mohammed with his followers to Madina, and then Islam has faced two other conflict movements; the first was the hypocrites movement, and the second was the Jewish tribes movement, but Islam was able to defeat them. In the last days of the prophet Mohammed (peace be upon him) another conflict movement becomes to appear and it was considered one of the most dangerous movements facing Islam, it was the apostasy movement (al - rida) which called for getting rid of the central state in Madina, which grew quickly and became dangerous after the die of the prophet Mohammed (peace be upon him), and became wide in many areas of Arab peninsula, and had have many forms, and became different with its bases, styles and means, but it was agreed on that it was the most dangerous on the religious, social, political and economical unity of the Arab peninsula, and this led the Islamic Arabic state to make a wide war to defeat it. Studying the subject of apostasy is considered one of the most important subjects in the Islamic Arabic history, that this historical period is connected commonly with the Islamic Arabic existence which became threatened with the absence of the real founder, and shifting the mission of power to the Caliph Abu Bakr (may Allah be pleased with him). As well as, this movement is considered one the critical subjects in the Islamic history for its coming results, and for its involving events dealt by the references which were different in its understanding, and varied in its presentation and events and making judgments. Also the researcher felt the importance of the subject through its looking into the historical studies made around him, either reliance on the old reference or the modern ones. Although the short period of the apostasy movements starting from (10 - 12A.H./631 - 633A.D.) but the continuous events were important and connected with the existed situation in Arab peninsula regions with its tribal formation which moved many of the events facing the growth of mission (Da'wa), which gives us religious, political, economical and social sides conncted originally with the psychological and mental formation of the Arabic personality, which was affected with the live in environment. Although, the first appearances of apostasy movements in Arab peninsula were in the south, and with its claimer Al - Aswad Al - Ansi in Yemen, but it is noted that the last movements were in the south regions too, and the apostasy of Kenda, Hathermot tribes leaded by Al - AshaathBin Qais Al - Kindey, so the apostasy movements in the south took along time and that led to its widen its dangerous on the central state in Madina. It is noted that many of the studies made by the modern researchers dealt with apostasy movements in general with ambiguity and enumeration without and addition or analysis, as well as the shorten of displaying the different sides of the subject, also some of these studies dealt with apostasy movements in the middle and east regions of Arab peninsula, from this starting point the researcher proposed to deal with the apostasy movements in south regions of Arab peninsula, and the thesis was entitled with "Apostasy in the South of Arab peninsula (10 - 12A.H) Historical Stud ", where it dealt with apostasy events in Yemen, Hathermot, Mohra, and Oman for they represent the south and south east of Arab peninsula, and for that nobody of the researchers has dealt with in an academic and scientific study. From this point, the researcher saw necessary to deal with this subject and giving a comprehensive and clear image for every part of its parts and solving its historical studying problem. The researcher did his best to make this study appears in the frame of historical, descriptive method of the historical events, so he presented a very accurate description for it. This study consisted of four chapters, the first one deals with "The Geographical and Human Situations in the South of Arab peninsula", and it depended on two main axes; the first axis talked about(The Geographical Situations) of south regions in Yemen, Hathermot and Oman, shedding light on the geographical position, name, elevations, and the weather, and the most important cities of these main regions. While the second axis talked about (The Human Situations) with its social population formation in the south, and also the religious and conductive formation of the Arabic tribes in the region before Islam, giving a detailed kinship about every tribe and its origin and name, and its social, political and economical life beside dealing with the religious thinking nature of these tribes, and the old celestial religions like Jewish and Christianity and so on. Concerning the second chapter, it dealt with (The Administrative and Financial Situations in the South of Arab peninsula); and its depended on three axes : the first and second ones dealt with the bases and principles of Islam, explaining the entry of many Arab peninsula regions in the new religion, and the coming of the Arab tribes to the prophet Mohammed (peace be upon him) declaring homage and obedience for him (peace be upon him). While the third axis talked about the new administration systems in the Message era, explaining the administration of the prophet Mohammed for these regions through sending the envoys, brigades to achieve security and stability, and then sending rulers and designating them to collect charities and managing the peoples' affairs. Concerning the third chapter, it displayed (Apostasy Movement, Beginning and Reasons), and this chapter depended on four axes : the first one dealt with the meaning of apostasy, and the linguistic and terminological meaning in Koran and Sunna; while the second one dealt with the first beginnings of it in the Message's era, with its claimer Al - Aswad Al - Ansi in Yemen in the last days of the prophet Mohammed (peace be upon him) life, the third axis dealt with apostasy in orthodox caliphate era and the surrounded situations of electing Abu Bakr Al - Sedeeq (may Allah be pleased with him), and explaining the way of apostasy movements beginning, and the tribes whom they committed apostasy. While the fourth axis dealt with the religious, political, economical and social reasons behind that. The fourth chapter dealt with (The Procedures and Measures which made by the Caliph Abu Bakr Al - Sedeeq to Crush the Apostasy Movements and the Important Results) and on the same method, the chapter depended on many axes : the first one, the military efforts of the Caliphate in the north, and it concentrated on the mission of Usama Bin Zaid in Syria, and the security measures of the Caliph to protect Madina, and he collected the eleventh brigades to face apostasy. While the second axis talked about the military efforts of the Caliphate in the south, and showing the important military efforts which participated in crushing the apostasy in Oman, Mohra, Hathermot and Yemen, besides finding out the important religious, political, economical and social results of these apostasy movements. This study was not easy or empty of difficulties, where the researches faced great difficulties during the preparation of this study, the most important of it was the shortage of references and sources which dealt with this subject directly, where most these references represented a general history of the period except some of those which specialized with this subject, the subjects of the thesis were disarranged inside the references and sources with great efforts, and one of the most difficulties which faced the researcher was the difference of editions and shortage of the historical references, and this made the researcher to travel to the neighbor countries to get the necessary scientific subjects to cover this study, and the researcher depended on many of the well known scientific encyclopedias which involved electronic libraries contain thousands of the historical references where they were brought from outside to fill the gap resulted from the shortage of references, and manuscripts in the Iraqi libraries as well as, the researched depended on a number of the personal libraries for a number of the professors. I have fulfilled the scientific subject (historical) of this thesis through many and different sources dealt with the subject of the thesis from many sides, varied in the plenty of its subjects and methods and the way of formulation, where some of them shed light on many historical facts, where some of them dealt with certain points or refer to certain events, besides this variation and harmony the researched tried to check the historical subject, especially that the information or reports transferred from many Muslims historians in this subject have been affected to some extent with the religious and thinking directions of their owners

الازمة المصرفية في دول جنوب شرق اسيا خلال فترة تسعينات القرن الماضي ودورها في توجهات السياسة النقدية == The banking crise for eastern - south of Asia for ninetieth of the past century and their role in direction of monetary policy

اسم المؤلف: صباح حسن عبد العكيلي
اسم المشرف: قصي عبود فرج الجابري
الموضوع العام: الادارة والاقتصاد
السنة: 2009
الموضوع الدقيق: العلوم المصرفية
الدرجة: ماجستير
اللغة: العربية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: الهدف الرئيسي لهذه الدراسة هو تحليل اسباب الازمات المصرفية والتي غالبا ما تكون اسباب اقتصادية ومالية مع التركيز على مجموعة مختارة من دول جنوب شرق اسيواالتي تعرضت الى ازمة مصرفية عام 1997 وهي البلدان المعنية بالازمة (التي عانت من الازمة) ، وكذلك توضيح الاثار النقدية للازمات المصرفية لهذه البلدان والمتغيرات التي تلعب دورا كبيرا في تعميق هذه الىثار بالاضافة الى استجابات السياسة النقدية لهذه الاثار. قد استندت الدراسة الى الفرضية التالية : ان اختلال هيكل النظام المصرفي لدول جنوب شرق اسيواالسمات المؤسسية المرتبطة به تلعب دورا بالغا في تعميق الاثار النقدية للازمة المصرفية. من اجل تحليل الاثار النقدية للازمات المصرفية ودورها في توجهات السياسة النقدية لدول جنوب شرق اسيا خلال فترة تسعينات القرن الماضي، فقد قام الباحث بتقسيم الدراسة الى خمسة فصول | The principle objective of this study is to analyses the cause of banking crisis which is often being financial and economic cause with concentrated on selective south eastern Asian countries that related with such to type of crisis (1997 - 1998). This study also focus on the monetary effects of the banking crisis and the change which play significant role in deepen the crisis in addition to the response of monetary policy of this effects .The study based on the following hypothesis : The effect of banking structure in south eastern Asian countries and the institutional characteristics related with it play significant role in deepen the monetary banking effect crisis .The researcher divided his study into 5 chapters according to the monetary banking effects of the crisis and its role in orientation. policy in south eastern Asian countries during last nineteenth decade. Finely the study finished with many conclusion and recommendations

دراسة انتقال الحرارة لمسبوكات المواد المنتجة بطريقة الطرد المركزي == A Study of The Heat Transfer For Alloys The Materials Produced By Use Centrifugal Casting

اسم المؤلف: محمد قاسم محسن
اسم المشرف: نوال عزت عبد اللطيف | كريمة اسماعيل عموري
السنة: 2009
الموضوع الدقيق: هندسة المعادن
الدرجة: ماجستير
اللغة: العربية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: تم كتابة برنامج حاسوبي بلغة فورتران (90) لدراسة الانتقال الحراري لبعدين(2 - D) بطريقة الفروقات المحددة المباشرة (Explicit Finite Difference Method) للمسبوكات ( Al - 4.5%Mg)،(Al - 7%Si)،المنتجة بطريقة السباكة بالطرد المركزي الافقية، اذ تم حساب سرعة دوران | Mathematical program writing completion by Fortran 90 to study the heat transfer in two dimensions(2 - D) by use explicit finite difference method for two alloys(Al - 4.5%Mg),(Al - 7%Si),this alloys were produced by the horizontal centrifugal casting, The mold rotation speed for the centrifugal casting was calculated and it was put in the mathematical program at the change of the mold rotation speed N=(100,1000,1500)rpm. And study the effect of the change of the mold rotation speed on the cooling rate and microstructure and hardness. We input to the mathematical program the boundary condition of the mold from (temperature ambient and heat transfer coefficient by convection of the alloys external)and input thermal physical properties of the alloys from (coefficient thermal conductivity of liquid and solidus,density of liquid and solidus, solid fraction, , specific heat of liquid and solidus, liquid temperature, latent heat of solidification, solidus temperature, alloys melting temperature),then we melted the alloys by use electric furnace and poured the melting alloys in the centrifugal casting mold after proceeding heating prematurely to the mold by used gaseous torch and fixing(digital thermal couple). We input to the mathematical program. And study the difference in mold rotation speed and it’s effected on the cooling rate of the both alloys and the mold and microstructure and hardness , and study the difference in the mold material effected on the cooling rate of the both alloys, and study effected the mold heating on the cooling rate of the both alloys. As a result we noted that the solidification time of the alloys is dependent upon the speed of rotation of the mold.

فشل الكلال بعدد دورات منخفض (LCF) لسبيكة الالمنيوم متوسطة المقاومة نوع 7020 عند معاملات حرارية مختلفة == Low Cycle Fatigue Failure of Medium Strength Aluminum Alloy 7020 At Different Heat Treatments

اسم المؤلف: مازن محمود يحيى
اسم المشرف: شاكر سكران حسن | عدنان نعمة عبود
الموضوع العام: هندسة الميكانيك
السنة: 2009
الموضوع الدقيق: هندسة الميكانيك
الدرجة: ماجستير
اللغة: العربية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: اشتمل البحث على اختبار فشل الكلال بعدد دورات منخفض (LCF) لسبيكة الالمنيوم AA7020 بحالاته الثلاث، التخمير والتعتيق الطبيعي والتعتيق الصناعي. اجري الاختبار على عينات قياسية من النوع المسند من جهة واحدة (Cantilever Beam) لبيان التاثير المشترك للاجهاد ا | The present work encompasses Low Cycle Fatigue (LCF) of the Al - alloy AA7020 with three conditions; annealing, natural aging and artificial aging. The LCF tests carried out using standard specimens cantilever beam types.Optical Light Microscope (OLM) an

دراسة عملية لتاثير الاهتزازات القسرية الشاقولية في معامل انتقال الحرارة بالحمل الحر من صفيحة مستوية مسخنة نحو الاعلى == Experimental Study of The Effect of Vertical Forced Vibrations on Natural Convection Heat Transfer Coefficient From Flat Plate Heated Upward

اسم المؤلف: عبد الحميد رافع سرحان
اسم المشرف: زينة خليفة كاظم
الموضوع العام: هندسة الميكانيك
السنة: 2009
الموضوع الدقيق: التبريد والتكييف
الدرجة: ماجستير
اللغة: العربية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: يهدف البحث الى اجراء دراسة عملية لبيان تاثير الاهتزازات القسرية الشاقولية في معامل انتقال الحرارة بالحمل الحر من صفيحة مصنعة من الالمنيوم بابعاد (mm 300 Length*100 Width*3 thickness)، سخنت الصفيحة بفيض حراري ثابت نحو الاعلى يتراوح بين (1500 - 250 ).اجريت | The aim of this work is to perform an experimental study for the effect of forced vertical vibrations on free convection heat transfer coefficient, from flat plate made of Aluminum with dimension (300 Length*100 Width *3 thickness mm).It has been heated u

دراسة عملية لتاثير الاهتزازات على معامل انتقال الحرارة بالحمل القسري من اسطوانة مزعنفة حلقيا == Experimental Study of The Effect of Vertical Vibrations on Forced Convection Heat Transfer Coefficient From Circumferentially Finned Cylinder

اسم المؤلف: فادي رياض شمعون
اسم المشرف: زينة خليفة كاظم
الموضوع العام: هندسة الميكانيك
السنة: 2009
الموضوع الدقيق: قوى حرارية
الدرجة: ماجستير
اللغة: العربية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: يهدف هذا البحث الى اجراء دراسة عملية لبيان تاثير الاهتزازات القسرية العمودية على معامل انتقال الحرارة بالحمل القسري وذلك باستعمال اسطوانة مزعنفة حلقيا مصنوعة من الالمنيوم. سخنت بفيض حراري ثابت وذلك بامرار تيار كهربائي متناوب خلال مقاومة مثبتة داخل الحيز | The aim of this work is to perform an experimental study for the effect of forced vertical vibrations on forced convection heat transfer coefficient, by the use of circumferential finned cylinder made of Aluminum. The cylinder was heated under the conditi

دراسة التاثير الحراري على الاستجابة الدينامية والمدار التدويمي لعمودين متداخلين باستخدام طريقة دمج العناصر المحددة - المصفوفات الانتقالية == Study The Thermal Effect on The Dynamic Response And Whirl Orbit of Twin Spool Using The Combined Finite Element - Transfer Matrix Method

اسم المؤلف: شيماء هلال كامل الطائي
اسم المشرف: موفق علي توفيق
الموضوع العام: هندسة الميكانيك
السنة: 2009
الموضوع الدقيق: ميكانيك تطبيقي
الدرجة: ماجستير
اللغة: العربية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: يتناول البحث دراسة التاثيرات الحرارية في السرعة الحرجة وفي توزيع المقادير الجانبية للاهتزاز على طول المحورين الدوارين المتداخلين كما تمت دراسة انواع مختلفة للتوزيعات الحرارية ومدى تاثيرها في السرع الحرجة وفي توزيع المقادير الجانبية للاهتزاز. فقد تم تطوير | The research studies the thermal effect on the critical speed and on the distribution of amounts both the lateral and axial for vibration along the Dual rotor - system. Differal thermal distribution type and their influence on the critical speed and on t

دراسة تاثير درجة الحرارة في الاستجابة الدينامية لعمود الحدبات باستخدام طريقة دمج العناصر المحددة - المصفوفات الانتقالية == Study The Temperature Effect on The Dynamic Response For A Camshaft By Using The Combined Finite Element - Transfer Matrices Method

اسم المؤلف: زيد حكمت رشيد
اسم المشرف: موفق علي توفيق
الموضوع العام: هندسة الميكانيك
السنة: 2009
الموضوع الدقيق: ميكانيك تطبيقي
الدرجة: ماجستير
اللغة: العربية
مكان الجامعة: بغداد
الكلمات الدلالية:
  • تاثير درجة الحرارة في معامل المرونة
  • تاثير درجة الحرارة في لزوجة الزيت
  • التمدد الحراري
  • مصفوفة النقطة
  • مصفوفة المجال
  • المدار التدويمي temp
  • Effect on young muduluse
  • temp
  • Effect on oil viscosity
  • Thermal expansion
  • Point matrix
  • Field matrix
  • Ca
الصفحات الاولى:
المستخلص: يقدم هذا البحث دراسة لتاثير التوزيع الحراري في الاستجابة الدينامية لعمود الحدبات باعتباره نظام عمود دوار - كرسي تحميل يحتوي على عدد من التفرعات.تناول البحث دراسة تاثير التوزيع الحراري في طول عمود الحدبات في قيم السرع الحرجة وفي توزيع مقادير الاهتزاز الجا | The present work studies the effect of temperature on the dynamic response for a camshaft as rotor - bearing system contains branches. This work has a studying of the effect of temperature distribution along camshaft length on the critical speeds and on th

استلهام الموروث التقليدي في العمارة المعاصرة : مدينة بغداد انموذجا == An Inspiration Tradition In Contemporary Architecture : Baghdad City As A Case Study

اسم المؤلف: نور علاء الدين محمد ال هاشم
اسم المشرف: جاسم الدباغ
الموضوع العام: الهندسة المعمارية
السنة: 2009
الموضوع الدقيق: هندسة العمارة
الدرجة: ماجستير
اللغة: العربية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: يهدف البحث لمناقشة احدى المواضيع التي طالما كانت مثار اهتمام بوصفها احدى المهام المطروحة في ساحة العمارة الاسلامية عموما, والعمارة العراقية خصوصا. وذلك ببيان كيفية استلهام الموروث التقليدي في العمارة المعاصرة, الذي يعزز عملية تحقيق الهوية لعمارة معاصرة. | Iraqi problems in particular, though how to aspires the traditional heritage in contemporary architecture Thus, The thesis emerges from the important of the studying the traditional heritage , for its embeds conjunction of the past with the present. This required the exploration of the intellectual origins and the characteristic of that rich heritage.In addition to that the research deals with inspiring important modern styles based on understanding the positive and negative aspects of the traditional heritage The research depends on inspiring the traditional heritage through the impact and the influence between the old and the new as a theoretical back ground and also through studying the ideological and philosophical concepts of the heritage and contemporary architecture. And to consider these aspects within the architecture and urban orientations As a result to that we will introduce a balance between inspiring traditional heritage and looking for contemporary, which is consequently importance to achieve a contemporary Iraqi architecture, as well as , finding the reasons behind the fall of the urban traditional and the halt of the architectural orientation in Iraqi and especially in Baghdad And for this reasons the most important things which this research aim's to providing the know how of the architecture and the traditional urban fabric objectivity and also to use the traditional heritage to create a modern architecture with high technology, but we must not forget the identity This also make us to know the works of the Iraqi architecture heritage and the reasons behinds the stop of there march To achieve the above facts we mentioned before , we divided this thesis in to four chapters The first chapter discuss the traditional heritage in Islamic cities second chapter deals with the world architectural trends and the contemporary Iraqi architecture. The first and the second chapters focused on building the theoretical and knowledge base to inspire the traditional heritage in contemporary architecture The third chapter deals with the analytical study and for this purpose we chose Baghdad city as a case because it represent a vivid and actual example for the modern Islamic city to give us numbers of conclusion and recommendation which we refers to in this thesis.

تكنولوجيا المنشا في النتاج المعماري المعاصر == Technologies of Structure In Contemporary Architectural Products

اسم المؤلف: اسراء عامر عبد الكريم
اسم المشرف: بهجت رشاد شاهين
الموضوع العام: الهندسة المعمارية
السنة: 2009
الموضوع الدقيق: هندسة العمارة
الدرجة: ماجستير
اللغة: العربية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: تعد العلاقة بين النتاج المعماري والجانب الانشائي في العمارة محط جدل الكثير من المعماريين في كيفية اظهار التكامل في مستوى تلك العلاقة وكيفية تاثير كل منهما في الاخر ولقلة الدراسات التي تناولت تلك العلاقة او وجوددراسات ركزت على جانب واحد وترك الجوانب الاخ | The relation between the architectural product and structural side in architectureconsiders a twisting point to a lot of architects, how demonstration the integrated in this relation and how the both effect on each others.Becaouse of few studies that had taken this relation or some studies concentration on one side and ignore the other side,for example some of these concentrations on formal side and ignore the structural side or other wise ,So appeared the important need to explain features of the relationbetween architectural product and manners of structural systems and from that can be striation the research problem, that is : "knowledge less about the integrationrelation between structure and architectural form in Contemporary age ". Base on this problem to be done the primary vision to the aims of this research and its method and framework to be requisite now reaching to method for untying this problem, So the chapter one give the inclusive definition of technology in public and explain foundations of technology, then explain the important sides of technology which is the structure side with all there nature conception, features and classifications. Also the nature of structural material that effect on structures choice and treating with them from functional, aesthetic - expression sides. While the chapter two have the second side of this relation that represented by the architectural product with all there features and the architectural form's nature and it sources and the extraction of important factors that effect on architectural form from functional, aesthetic - expression sides. then display the important items of theoretical framework that extracted from chapter one and chapter two. The theoretical frameworks consist of three levels are : " structural level, formal level and the relation nature between them. Chapter three have two axises, the first contains a public study of Contemporary Architecture to reach the effect of form on structure and other wise, while the second axis contains an application study for untying research problem that had taken by five projects and determine the basis choice of theses projects and that done by applying the theoretical framework's primary and secondary items on these projects ,By that it had explained possible limitation for the theoretical frameworks application and description the cases that actualized the effect of technology on integrated of architectural structure systems that can be got by defining this effect and the how to actualize on the all five projects.finally Chapter four contains a discussion of results and define the finally conclusions of this research with explaining the research recommendations ,future studies and foundations that willbenefit from this research.

التفاعل الحضاري واثره في تغير مراكز المدن التاريخية : دور الاحتلال في التغير العمراني == Civilization Interaction & Its Effect On Changing Historical Cities Centers : The Role of Occupation In The Urban Change

اسم المؤلف: محمد احمد شهاب الروزنامجي
اسم المشرف: اريج كريم مجيد السدخان
الموضوع العام: الهندسة المعمارية
السنة: 2009
الموضوع الدقيق: هندسة العمارة
الدرجة: ماجستير
اللغة: العربية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: Civilization Interaction is an everyday life process that affects the city centers and that encourages their continuity in times and discourages them in others, in certainrelation between two : dialogue and conflict. This principle was the basis of study of one of the important phenomena related to the human existence : interaction betweencivilizations, whether dialogue or conflict, and the relation of these two poles on many levels and through many mechanisms, and the effect of this process on city centers positive or negative, according to the relation of these two poles and because that dialogue and conflict represent opposing extremes of the same phenomenon. Thecivilization interaction is changeable, sometimes the dialogue pole dominates, and sometimes the conflict pole. This is reflected on the city centers development. Theabsence of the comprehensive understanding of the co - existence of the two poles within this single phenomenon in architectural and non - architectural theses about thissubject is a reason that initiated this research. Accordingly, the research problem was formulated as " researching for the positive and negative factors in the process ofinteraction among the civilizations which happenes within the circumstances of occupation,and explanation of the degree of the circumstances on the process of interaction between the civilization of invader and the country which below the occupation.. The research theoretical goal is formulated as "to diagnose the change patterns that occur in historical city centers and define their nature, the change effected by the imposition of other civilizations (occupations) on the local ones (within the framework of the dialogue and conflict bipolar equation).On the practical level : the above - mentioned theoretical principles are applied to carefully chosen reallife examples. Using the analytical inductive methodology, the researcher has divided the research into six chapters : chapter one is dedicated to present a general introduction to civilization interaction and its effect on the changeability of historical city centers by listing and criticizing previous relevant researches and theses. Chapter two is devoted to discussing the concept of civilization and civilization interaction through many theses about the civilization interaction within its two poles, the factors that encourage this process and its levels and the alternation of this phenomenon between the poles. Then this relativity is further clarified through shedding light on city and its historical center that witnesses the process of the civilization interaction and the change of this center negatively and positively according to the relative movement between the two poles of the civilization interaction process and its effects on the variables of the center. Chapter four is devoted to build the theoretical framework through understanding one of these factors : occupation factor as one of the civilization interaction factors along with its two poles and the effect of this factor on the changeability of historical city centers within a mechanism of movement between the two poles of the process, through the analysis of chosen historical city centers of occupied civilizations affected by the civilization interaction, be it positive or negative, depending on the movement of the two poles of the process, especially regarding the urban expansion as a result for this factor. The research explain the existence of a gap in the knowledge in terms of relations, such as the relations of the two poles of the civilization interaction, the relativity of relationship between them, through the analysis of historical city centers within the civilization interaction process, affected by occupation factor according to relative criteria to measure this relation, derived from the theoretical framework (that is studied in Chapter four) and explained in chapter five (the practical application). The relation between the two poles of the civilization interaction was studied, along with their effect in the changeability of the historical city centers (of Baghdad, Aleppo, and Jerusalem).Chapter six is divided into two axes; the first was reserved for the conclusions from the research, while the second one is dedicated recommendations of the resear.

التكنلوجيا الحديثة وسبل توظيف الطاقة الشمسية في التصميم البيئي المستدام == High Technology In Solar Energy Strategies And Utilizing In Environmental Sustainable Design

اسم المؤلف: تمارة عبد الكاظم جواد كاظم
اسم المشرف: صبا جبار نعمة الخفاجي
الموضوع العام: الهندسة المعمارية
السنة: 2009
الموضوع الدقيق: هندسة العمارة
الدرجة: ماجستير
اللغة: العربية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: يستدعي التطور العظيم في مجال التكنلوجيا والتقنيات الحديثة دراسة مستفيضة في مجال تكيفات الطاقة ولاسيما في عصر اصبحت الطاقة فيه مشكلة اساسية كونها في طريقها للنفاذ ويستوجب الاعتماد على مصادر اخرى غيرالمصادر الحالية. ويمثل مجال العمارة احد اهم المجالات ذ | The gigantic development in the domain of technology and modern techniques calls for overall study in the domain of energy’s conditionings, this is particularly so in an era where energy has become a basic problem due to being in the course of depletion. This forces us to depend on other sources than the current ones. The field of architecture is directly associated with the energy issue, the research to study the conditioning of architecture with energy was about the solar architecture by the virtue of the sun being a non - depleted alternative source to be utilized technologically. The research was concerned in the study of all current and future techniques of solar energy. The core of the research was : Give acknowledgment about the role, important and capability at implementation of solar energy as non - depleted source in the sustained environmental design. This query led to emergence of ancillary knowledgeable problems about the implementable technological means in Iraq which depends on merger of the passive and active means and its techniques that suit the climate of our zone. The goal is to provide acknowledgement about the importance of solar energy and identified the modern means, techniques and implementation of this energy in sustainable design compatible with the hot dry climate of Iraq. The research relied on the assumption that merger of passive and active design in the solar design is the optimum guarantee for realization of maximum benefit from such energy. Chapter 1 dealt with energy’s topics, sources and its current problem, it put forward the most important current and future alternatives. Chapter2 focused on solar architecture in the domain of climatic design as an important environmental solution for the problem of energy depletion. Chapter 3 put forward the most important techniques of solar energy. In chapter 4 many local, Arab and global examples were presented for comparison with its solar treatment methods and followed techniques. The purpose is to get the best conclusion and recommendations for dealing with the circumstances and specificity of our region and its hot dry climate and that was by the combination between the two systems of solar design to ensure that the building is self conditioned and then powered it with the energy.

العوامل المؤثرة على الخرسانة ذاتية الرص المسلحة بالالياف == Factors Affecting on Self Compacting Fiber Reinforced Concrete

اسم المؤلف: غزوان عبد الصمد سلمان
اسم المشرف: شاكر احمد صالح المشهداني
الموضوع العام: الهندسة المدنية
السنة: 2009
الموضوع الدقيق: الهندسة الانشائية
الدرجة: دكتوراه
اللغة: العربية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: لدراسة امكانية انتاج خرسانة ذاتية الرص حاوية على مواد بوزولانية كمواد ناعمة ومسلحة بانواع مختلفة من الالياف. تمت اضافة 10% من وزن السمنت مواد ناعمة جدا من ابخرة السليكا اؤ الميتاكاؤلين. وتم استخدام ثلاثة انواع من الالياف وهي (الياف البولي بروبلين والزجا | Studies the possibility of producing self compacting concrete (SCC) containing Pozzolanic materials and reinforced with different types of fibers. 10% by weight of cement of metakaoline and silica fume were used and three types of fiber (polypropylene, gl

تاثير حامض الهيوميك والاعشاب البحرية في نمو وازهار وحاصل الخيار (Cucumis sativus L.) == Effect of Humic Acid And Sea Algae on Growth, Flowering And Yield of Cucumber Cucumus Sativus L

اسم المؤلف: محمد عبد الله احمد الجبوري
اسم المشرف: جميل ياسين علي التميمي
الموضوع العام: علوم الزراعة
السنة: 2009
الموضوع الدقيق: النبات - البستنة
الدرجة: ماجستير
اللغة: العربية
مكان الجامعة: صلاح الدين
الصفحات الاولى:
المستخلص: اجريت هذه الدراسة في موقعين, الاول في قرية الحجاج/ قضاء بيجي والثاني في حقول كلية الزراعة/ جامعة تكريت للموسم الزراعي 2008 على نباتات الخيار صنف Babylon بهدف دراسة تاثير حامض الهيوميك والاعشاب البحرية في نمو وازهار وحاصل الخيار. اضيف حامض الهيوميك الى الت | This study was conducted into two places; the first (Al - Hijaj Village)/ Baiji and the second (College of Agriculture farms/University of Tikrit). At the season 2008 on Cucumber plants Cv. Babylon. It aimed at studying the effect of Humic acid which used

تاثير طرائق الطبخ في التركيب الكيميائي والقيمة الغذائية للحوم بعض الاسماك المحلية في العراق == Effect of Cooking Methods on The Chemical Composition And Nutritive Value of Some Local Iraqi Fish

اسم المؤلف: دريد حمادة عياش الجبوري
اسم المشرف: فاروق محمود كامل
الموضوع العام: علوم الزراعة
السنة: 2009
الموضوع الدقيق: الاغذية
الدرجة: ماجستير
اللغة: العربية
مكان الجامعة: صلاح الدين
الصفحات الاولى:
المستخلص: شملت الدراسة اربعة انواع من الاسماك الشائعة في السوق المحلية في محافظة صلاح الدين/تكريت وللمدة من 30 تموز 2008 ولغاية 30 حزيران 2009 وهي كل من سمكة الشبوط Shabbout(Barbus grypus) (Heckel, 1843)، والكطان Gattan(Barbus xanthopterus) (Heckel, 1843)، والكار | This study was carried out on four species of fresh water fish which spread in Salah Addin province, Tikrit, from July 2008 to the last of June 2009 they were Shabbout Barbus grypus, Gattan Barbus xanthopterus, Carp Cyprinus carpio, Bunni Barbus sharpeyi.

استجابة ثلاثة اصناف من الذرة الصفراء (.Zea mays L) لمواعيد تجزئة السماد النيتروجيني والبوتاسي == Response of Three Varities of Corn (Zea Mays L.)To Partitioning Dates of Nitrogenous And Potash Fertilizers

اسم المؤلف: عبير ياسين محمد مدلي المجمعي
اسم المشرف: خالد سعيد عبد الله | فخر الدين عبد القادر صديق
الموضوع العام: علوم الزراعة
السنة: 2009
الموضوع الدقيق: النبات - المحاصيل الحقلية
الدرجة: ماجستير
اللغة: العربية
مكان الجامعة: صلاح الدين
الصفحات الاولى:
المستخلص: نفذت تجربة حقلية في الموسم الخريفي(2008) في موقعين الاول حقول كلية الزراعة - جامعة تكريت تربة جبسيه (مزيجه رملية) والثاني في قرية ابو صفة - ناحية الاسحاقي تربة مزيجة طينية غرينية بهدف معرفة استجابة بعض اصنافالذرة الصفراء (بحوث106،اباء5012والمسرة ) لمواعيد | A field experiment had been conducted in the Autumnal seasom 2008 in two sites : first was in the fields of College of Agriculture - Tikrit University (sandy loam gypsiferous soil), while the second site was in Abu Sefa village (silty clay loam soil). The

تحسين الصفات المظهرية والتغذوية للخبز المدعم بمصادر بروتينية مختلفة == Improvement of Apparent And Nutritive Characteristics for Fortified Bread With Different Protein Sources

اسم المؤلف: انتصار داود مصطفى الناصري
اسم المشرف: بيان ياسين العبد الله
الموضوع العام: علوم الزراعة
السنة: 2009
الموضوع الدقيق: الاغذية
الدرجة: ماجستير
اللغة: العربية
مكان الجامعة: صلاح الدين
الصفحات الاولى:
المستخلص: تم دراسة تاثير اضافة ( 2، 4، 6، 8 )% من طحين البقوليات وشملت ( الحمص والعدس وفستق الحقل ) والمـركزات (الحمص والعدس وفستق الحقل والسمسم والسمك ) بالمستويات ( 0.5، 1.5، 3 )%، ومنتجات الالبان ( الحليب الكامل المجفف والحليب الفرز المجفف ) وكانت نسب الا | The study was aimed to investigate the influence of adding legume flour which include (chick pea, lentil, peanut) by the pre cent age (2,4,6,8)% and concentrates of (chick pea, lentil, peanut, sesame, and fish by the percent age (0.5,1.5,3)% and dairy pro

تقييم التلوث الكيماوي والميكروبي لبعض مشروبات الطاقة والغازية وبيان تاثيراتها في الصفات الفسلجية والنسيجية للارانب == Evaluation of Chemical And Microbial Contamination for Some Energy And Soft Drinks And Statement Their Effects on The Physiological And Histological Characteristics in Rabbits

اسم المؤلف: منال صالح مهدي الشمري
اسم المشرف: كركز محمد ثلج الجبوري
الموضوع العام: علوم الزراعة
السنة: 2009
الموضوع الدقيق: الاغذية
الدرجة: ماجستير
اللغة: العربية
مكان الجامعة: صلاح الدين
الصفحات الاولى:
المستخلص: اجريت الدراسة في مختبرات قسم علوم الاغذية - كلية الزراعة في جامعة تكريت, للمدة من 1 - 7 - 2010 ولغاية 1 - 6 - 2011, التي تضمنت التقييم الميكروبي والصحي لاربعة انواع من كل من مشروبات الطاقة (ريدبول, بايسون, باور وTNT) والمشروبات الغازية (سفن اب وميريندا وب | This study was conducted in the laboratories of Food Science Department/ College of Agriculture in Tikrit University from 1/7/2010 to 1/6/2011. The main objects were to study The microbial and health evaluation of four types of energy (Redbull, Bison, Pow

زيادة توصيلية اغشية تولورايد كادميوم == Increasing The Conductivity of Cadmium Telluride Films

اسم المؤلف: وسيم نجيب ابراهيم
اسم المشرف: مسلم فاضل جواد الزبيدي
الموضوع العام: علوم الفيزياء
السنة: 2009
الموضوع الدقيق: الفيزياء التطبيقية
الدرجة: ماجستير
اللغة: العربية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: تم في هذا البحث دراسة الخصائص التركيبية والكهربائية والبصرية لاغشية تولورايد كادميوم (CdTe) الرقيقة المحضرة بطريقة التبخير الحراري في الفراغ على شرائح زجاجية بدرجة حرارة الغرفة، وتم دراسة تاثير التلدين والمعالجة الحرارية بمحلول كلوريد الكادميوم عند درجة | In this work, the study of structural,optical and electrical properties of (CdTe) thin films which was prepared by thermal vacuum evaporation on glass substrate at room temperature, the annealing effect and CdCl2 heat treatment effect at (300?C) temperatu

تحسين كفاءة الخلية الشمسية السليكونية == Improvement The Efficiency of Silicon Solar Cell

اسم المؤلف: لبنى رشيد مجيد
اسم المشرف: سارية ذياب محمد العلكاوي
الموضوع العام: علوم الفيزياء
السنة: 2009
الموضوع الدقيق: الفيزياء التطبيقية
الدرجة: ماجستير
اللغة: العربية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: يتناول هذا البحث تحضير غشاء In2O3 الرقيق بطريقة الاكسدة الحرارية السريعة للانديوم المرسب بطريقة التبخير الحراري بالفراغ وباسماك مختلفة (106 - 200 - 350 - 500 nm) ضمن درجات حرارة اكسدة مختلفة (350 - 400 - 450C°) وقد تم استعمال نوعين من القواعد اذ تم دراسة | In this work, we prepared a thin film of In2O3 by rapid thermal oxidation at different thickness (106 - 200 - 350 - 500nm) within a range of oxidation temperature (350 - 400 - 450C°). Two types of substrate have been used in this work; the structural, opt

دراسة تاثير السمك والتركيز على الخصائص الكهربائية والبصرية لـ بولي مثيل ميثاكريلات المشوب بملح التيتانيوم TiCl3 == Study The Influnce of Concentration And Thickness on Electrical And Optical Properties of PMMA / Ti Cl3 Salt Composite

اسم المؤلف: فاضل تركي معن
اسم المشرف: زينب عبد السلام الرمضان
الموضوع العام: علوم الفيزياء
السنة: 2009
الموضوع الدقيق: الفيزياء
الدرجة: ماجستير
اللغة: العربية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: تم في هذا البحث تحضير البوليمر بولي مثيل ميثاكريلات PMMA العازل اللدائني الشفاف بعملية بلمرة الاضافة الحجمية بواسطة الجذور الحرة باضافة البادئ بنزول بيروكسايد الى المونومير MMA.تم قياس اللزوجة باستخدام جهاز قياس اللزوجة عن طريق اخذ تراكيز مختلفة من النمو | In this research, The preparation of poly methyl methacrylate PMMA (the transparent plastic insulator) by polymerization the added volume by free radicals after adding the initator Benzoyl peroxide to the MMA monomer. The viscosity were measured by viscom

تحضير وتشخيص بعض مشتقات4، 2، 1 و4، 3، 1 - اوكسادايازول وتقييم فعاليتها البايولوجية == Synthesis And Characterization of Some (1,2 ,4 & 1,3 ,4) - Oxadiazoles And Evaluation Their Biological Activity

اسم المؤلف: بشرى فيصل نعمان
اسم المشرف: خالد مطني محمد الجنابي
الموضوع العام: علوم الكيمياء
السنة: 2009
الموضوع الدقيق: الكيمياء اللاعضوية
الدرجة: ماجستير
اللغة: العربية
مكان الجامعة: صلاح الدين
الصفحات الاولى:
المستخلص: في هذه الدراسة تم تحضير ثلاثة ليكاندات ازو اميدازول جديدة (L1 - L3) وتم تشخيصها بوساطة اطياف ,C.H.N ,1HNMR, 13CNMR, UV - Vis, I.R طيف الكتله اضافه الى الطرائق الفيزيائيه من ذوبانيه ودرجة انصهار.حضرت عدد من المعقدات الجديدة لايونات Cd(II), Zn(II), Ni(II) | In this work, three azo imidazole ligands [L1 (2,3 - DMBAI), L2 (2 - CyBAI) and L3 (4 - SuBAI) ] have been prepared and characterized by I.R, UV - Vis spectra, (C.H.N.) microanalysis, 1HNMR, 13CNMR, mass spectroscopy and other physical properties like solubility and melting point measurements.A wide range of new complexes of Co( ), Ni( ), Cu( ), Zn( ), Cd ( ) and Hg ( ) with azo ligands (L1 - L3) were prepared after fixing the optimum conditions of pH and molar concentration. The structures of these complexes were assigned according to the molar ratio, which was obtained from the spectroscopic studies of the complexes solution of the above metal ions. However, metal - ligand (M : L) ratio of 1 : 2 were obtained.Stability constant have been founded in optimum concentration and optimum pH of complexes.The percentages of the metals in the complexes have been measured by flame atomic absorption spectrophotometer (A.A.) technique. Conductivity measurements with optimum concentration of prepared complexes have shown non - ionic character for all complexes in ethanol.The magnetic susceptibility measurements of Zn ( ), Cd ( ) and Hg ( ) complexes exhibit diamagnetic behavior, while paramagnetic properties were recorded for all the other complexes The UV - Vis spectra of the prepared complexes showed bathachromic shift in ?max , while the IR spectra ( using KBr disc) of the complexes showed changes in the band shape and density formed with those of the free ligand which indicated the complexation between the metal ions and ligands through the N atom of imidazole and azo group The analysis results showed that the proposed geometrical structure were octahedral configuration for all complexes and the general formula are : [M (Ln)2 X2 ]. mH2O , when M= Co( ), Ni( ), Cu( ), Zn( ),Cd ( ) and Hg ( ) ; L= ligands ; n= 1 - 3; X= Cl ; m= 0,1,2.
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