A tungsten inert gas (TIG) welding is one of the most popular kinds of welding used to join metals mainly for aluminum alloys. However, many challenges may be met with this kind of joining process; these challenges arise from decay of mechanical properties of welded materials. In the present study, an attempt was made to enhancing the mechanical properties of TIG weld joint of 6061-T6 aluminum alloy by hardening the surfaces using shoot peening technique. To optimize the shoot peening process three times of exposure (5, 10, and 15) min. was used. All peened and unpeened, and welded and unwelded samples were characterized by metallographic test to indicate the phase transformation and modification in microstructure occurring d
... Show MoreAn experimental study was carried out for an evaporative cooling system in order to investigate the effect of using an aluminum pad coated with fabric polyester. In the present work, it was considered to use a new different type of cooling medium and test its performance during the change in the wet-bulb temperature and dry-bulb temperature of the supply air outside of the pad, the relative humidity of the supply air, the amount of air supplied (300-600) CFM and also the change of the amount of circulated water (1.75, 2.5, 4.5) liter per minute. A decrease in the WBT of the air was obtained, whereas the WBT of the air entering the pad was 26.5 . In contrast, the WBT of the outside air had reached 23 even though eva
... Show MoreOpenStreetMap (OSM) represents the most common example of online volunteered mapping applications. Most of these platforms are open source spatial data collected by non-experts volunteers using different data collection methods. OSM project aims to provide a free digital map for all the world. The heterogeneity in data collection methods made OSM project databases accuracy is unreliable and must be dealt with caution for any engineering application. This study aims to assess the horizontal positional accuracy of three spatial data sources are OSM road network database, high-resolution Satellite Image (SI), and high-resolution Aerial Photo (AP) of Baghdad city with respect to an analogue formal road network dataset obtain
... Show Moreهدف البحث الى اعداد تدريبات بالاربطة المطاطية للاعبي كرة السلة للشباب (عينة البحث)، ومعرفة تأثيرها في بعض المؤشرات البايوميكانيكية ودقة التصويب البعيد. وفرض الباحثان وجود فروق معنوية بين الاختبارات القبلية والبعدية للمؤشرات البايوميكانيكية ودقة التصويب البعيد من القفز لمجموعتي البحث. ووجود فروق معنوية في الاختبارات البعدية لمتغيرات البحث جميعها بين مجموعتي البحث. وطُبق البحث على عينة من لا
... Show MorePollen grains morphology have been studied for the wild species of the genus Erysimum L. which belong to Crucifereae family in Iraq. These species are E. filifolium Boiss. et Hausskn., E. oleifolium J. Gay, E. repandum L., E. eginense Hausskn. ex Bornm., E. aucheranum J. Gay, E. cheiranthoides L., E. alpestre Ky. ex Boiss., E. kurdicum Boiss. et Hausskn., E. tenellum DC., E. strophades Boiss., E. gladiiferum Boiss. et Hausskn., E. nasturtioides Boiss. et Hausskn. The study was performe by using light microscope . The study reveal that there was only one type of pollen grain named Tricoplate in all studied species . The study also demonstrated that there were differences among pollen grains morphology . The species E. kurdicum , E. alpestre
... Show MoreThe current investigation was to redescribe the morphology of the species of hard tick, Rhipicephalus pravus Dönitz, 1910 (Ixodida, Ixodidae) that was recently recorded from Baghdad Province, central of Iraq. A total of 130 sheep were obtained from the local animal markets in Baghdad Province, throughout the period from May 2022 to November 2023; these sheep were examined for the presence of hard ticks. The current study revealed five sheep infested with R. pravus in Baghdad Province. The specimens were deposited in the Iraq Natural History Research Center and Museum-Baghdad University under the number: INHM, 2023: Hard Ticks, No. 1.1. Hard tick-borne pathogens were reviewed, so this species of tick was associated with several pathogens
... Show MoreWhat is the contract of cultivating the land of the waqf in Islamic jurisprudence and the Algerian Awqaf law
We introduce and discuss the modern type of fibrewise topological spaces, namely fibrewise fuzzy topological spaces. Also, we introduce the concepts of fibrewise closed fuzzy topological spaces, fibrewise open fuzzy topological spaces, fibrewise locally sliceable fuzzy topological spaces and fibrewise locally sectionable fuzzy topological spaces. Furthermore, we state and prove several theorems concerning these concepts.
In this paper, Bayes estimators for the shape and scale parameters of Weibull distribution have been obtained using the generalized weighted loss function, based on Exponential priors. Lindley’s approximation has been used effectively in Bayesian estimation. Based on theMonte Carlo simulation method, those estimators are compared depending on the mean squared errors (MSE’s).
A filed experiment was conducted at Ehssay village-Amria-Fallujah district in Al-Anbar governorate during the spring season of 2012 and 2013 in order to study the effect of potassium fertilizer and foliar nutrition of iron and zinc on yield and its quality of two mung bean (Vigna radiata L.) genotypes. Factorial arrangement was used in RCBD with three replicates. The experiment included three levels of potassium (0, 60 and 120) kg K.ha-1, four treatments of foliar application of zinc and iron (0, Fe 150, Zn 100 and Fe 150 + Zn 100) mg.L-1 and two mung bean genotype
... Show MoreThe method of solving volterra integral equation by using numerical solution is a simple operation but to require many memory space to compute and save the operation. The importance of this equation appeares new direction to solve the equation by using new methods to avoid obstacles. One of these methods employ neural network for obtaining the solution.
This paper presents a proposed method by using cascade-forward neural network to simulate volterra integral equations solutions. This method depends on training cascade-forward neural network by inputs which represent the mean of volterra integral equations solutions, the target of cascade-forward neural network is to get the desired output of this network. Cascade-forward neural
... Show MoreThe derivation of 5th order diagonal implicit type Runge Kutta methods (DITRKM5) for solving 3rd special order ordinary differential equations (ODEs) is introduced in the present study. The DITRKM5 techniques are the name of the approach. This approach has three equivalent non-zero diagonal elements. To investigate the current study, a variety of tests for five various initial value problems (IVPs) with different step sizes h were implemented. Then, a comparison was made with the methods indicated in the other literature of the implicit RK techniques. The numerical techniques are elucidated as the qualification regarding the efficiency and number of function evaluations compared with another literature of the implic
... Show MoreIn this paper, we study a new concept of fuzzy sub-module, called fuzzy socle semi-prime sub-module that is a generalization the concept of semi-prime fuzzy sub-module and fuzzy of approximately semi-prime sub-module in the ordinary sense. This leads us to introduce level property which studies the relation between the ordinary and fuzzy sense of approximately semi-prime sub-module. Also, some of its characteristics and notions such as the intersection, image and external direct sum of fuzzy socle semi-prime sub-modules are introduced. Furthermore, the relation between the fuzzy socle semi-prime sub-module and other types of fuzzy sub-module presented.
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This research was interested in studying the phrase “I don’t know” in the Lisan al-Arab dictionary, and Lisan al-Arab was based on collecting its material from five dictionaries, including: Tahdhib al-Lugha, al-Muqamah, al-Sahih, and the footnotes of Ibn Berri, al-Nihaya and Gharib al-Hadith. The objection to this phrase, and the discussion of its various implications among linguists and the clarification of the closest and most famous content to it according to the data presented to the researcher in his research journey, and to reach this goal, the research division into a preface, five demands and a conclusion and followed the list of sources and references. To define the lexicon of Lisan al-Ar
... Show Moreاشتمل الملخص على مقدمة البحث واهميته، اذ تطرقت الباحثات الى دور المختبرات النفسية الحديثة كإحدى اهم ادوات علم النفس الحديث الذي تبلور من خلال المنظومات النفسية الالكترونية اذ صممت لمجالات علمية متنوعة وعدت من ادوات الفحص والتشخيص النفسي. وتطرقت ايضا الى لعبة الكرة الطائرة التي تعد من الالعاب الرياضية التي شهدت تطورا ملحوظا وكبيرا اذ اصبحت الان وفي العديد من دول العالم تحتل المراتب الاولى من حيث ممارستها و
... Show MoreElegy is one of the foundations of the Arab poetic heritage, and it is one of the main sections of poetry. Man has found in him his desire to express his innermost self at an hour filled with pain, and an outlet from which his anguish and grief come out in an expressive form that liberates tears and reproaches death.
Lamentation is an evolving purpose that grows with the growth of society and life and records the change that takes place in every stage of history. It is an important result of the poet's collision with life and events.
That is why I chose the lamentation poetry of Hafiz Ibrahim, due to the importance of this art to him, and it is the art in which he excelled the poets of his time.
I have divided this research into
The acoustic efforts of the glass were found in the meanings mixed with other linguistic, grammatical and morphological issues, as the glass was not allocated to the detective or separate chapters in the meanings. The glass-walled in the audio lesson according to the doctrine of the optical, has stated so in several places of its meaning. Glass is interested in mentioning the strong qualities that have a great impact in the chorus and replacements such as loudness, dishes, arrogance, whistling, repetition, and richness. Glass was concerned with the phenomenon of diphtheria great care, and explained its purpose of seeking lightness and ease of pronunciation, and Siboe agreed in its origins and issues, and the glass used three criteria in
... Show Moreيمكن للعديد من الأنواع النباتية إنتاج مركبات نشطة بيولوجياً, والتي يمكن أن تلعب دوراً رئيساً في حماية صحة الإنسان, وتعد نبات الشيا واحد من هذه الأنواع النباتية التي اكتسبت شعبية متزايدة بين المجاميع الطبية التقليدية, ومن أجل إلإنتاج المستدام لكتلة حيوية نباتية ذات محتوى عالي من الكيمياء النباتية ، يستلزم أستعمال العديد من النهج التكنولوجية الحيوية. وقد أثبتت التجارب البحثية أن استعم
... Show MoreThe present study was designed to investigate the possibility of using Lactobacillus as a skin probiotic. For this purpose, 63 isolates of Lactobacillus sp. were collected from dairy products and human mouth samples. The isolates were screened for bacteriocin production by primary and secondary screening against three common skin pathogens. The results showed that the isolate Lactobacillus HT1give the highest productivity of bacteriocin (320AU/ml), the efficient isolate was identified through molecular detection using 16S ribosomal RNA gene. In addition, result showed that L. acidophilus HT1 was un encapsulated
... Show MoreCoal fines are highly prone to be generated in all stages of Coal Seam Gas (CSG) production and development. These detached fines tend to aggregate, contributing to pore throat blockage and permeability reduction. Thus, this work explores the dispersion stability of coal fines in CSG reservoirs and proposes a new additive to be used in the formulation of the hydraulic fracturing fluid to keep the fines dispersed in the fluid. In this work, bituminous coal fines were tested in various suspensions in order to study their dispersion stability. The aggregation behavior of coal fines (dispersed phase) was analyzed in different dispersion mediums, including deionized-water, low and high sodium chloride solutions. Furthermore, the effect of Sodium
... Show Moreتم التقصي عن الاصابة بالاكياس المائية في رئات واكباد الاغنام وعلاقتها بالكليبسيلا الرئوية, العينات جمعت من حيوانات مريضة وصحيحة في مجازرمختلفة لمدن العراق, كل عينة كانت تحتوي آفات تكيسية قسمت الى ثلاث اجزاء, الجزأ الاول ارسل الى مختبرالمايكروبولوجي, الجزأ الثاني ارسل الى مختبرالطفيليات, الجزأ الثالث ارسل الى مختبرالهستوباثولوجي. عدد100من عينات الرئات والاكباد شخصت عيانيا, وكذلك تم تشخيص العينات في
... Show MoreWellbore instability and sand production onset modeling are very affected by Sonic Shear Wave Time (SSW). In any field, SSW is not available for all wells due to the high cost of measuring. Many authors developed empirical correlations using information from selected worldwide fields for SSW prediction. Recently, researchers have used different Artificial Intelligence methods for estimating SSW. Three existing empirical correlations of Carroll, Freund, and Brocher are used to estimate SSW in this paper, while a fourth new empirical correlation is established. For comparing with the empirical correlation results, another study's Artificial Neural Network (ANN) was used. The same data t
... Show MoreThis research was aimed to construct an integrative system which is capable of accurate determining and analyzing evapotranspiration rates in Iraq for long period , Since high evapotranspiration rates and extreme shortage in precipitation are the main causes of aridity, which considered principal reason for land degradation and land desertification eventually. FAO Penman-Monteith method was adopted because it's the international standard method. In this work meteorological readings of nine stations with comprehensive covering for Iraq's area were taken for every ten years in a long-term range (31 years). The daily evapotranspiration values had been calculated, then after the annual summation value determined for the years (1987,
... Show MoreThe Prangos platychlaena Boiss belonged to the family of Apiaceae is a native medicinal plant of Kurdistan-Iraq. The stem, leaves and flowers of the plant were collected in the mountain of Halgurd of the Kurdistan region of Iraq, and hydrodistilated to obtain the volatile compounds, using both Gas Chromatography ( GC ) and Gas chromatography/ Mass spectroscopy (GC/MS). The results showed that the P. platychlaena Boiss essential oils containing several compounds such as Sylvestrene, α-Pinene oxide, (Z)-Epoxy-ocimene, Borneol, epi-Longipinanol, Germacrene D-4-ol, epi-α-Cadinol, 3-Thujanol acetate and Acorenone with different amount which were not found in any other Prangos species, and all show
... Show MoreThis study was conducted at the poultry farm -Animal Production Department/ College of Agricultural Engineering Sciences- University of Baghdad, for the period from 2018/8/17 to 2018/9/28, in order to study the effect of adding inorganic and organic selenium to the broiler diets reared at high temperatures in the physiological performance. A 420 un-sexed chicks of breed (Ross 308) were used in the experiment as a one-day old and with weight rate of 36.4g. The chicks were distributed randomly and equally on 7 treatments, each one included 3 replicates at 20 chicks/replicate. The experiment included the following treatments : T1,T2, and T3 as organic selenium treatments which are selenomethionin with a concentrati
... Show Moreمشكلة البحث : شخص الباحث هناك ضعفاً في بعض القدرات البدنية والمهارات الأساسية مما يؤثر في فاعلية أدائهم ، فإنَّ أغلب الفرق العراقية تعاني من الانخفاض الواضح في مستوى الأداء ولاسيما في الثلث الأخير من المباراة إذ يؤدي إلى التعب المبكر وبطء حالة الاستشفاء والى قلة التركيز وانخفاض مستوى فاعلية الأداء الإجمالي ) البدني والفني (الذي يظهر من خلال اللعب العشوائي وتشتيت الكرات وكثرة المناولات المقطوعة وبطء الفعال
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