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jcoeduw-1117
Space-Charge Effect on the Theoretical Design of Enzil Lens
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The presentwork is a theoretical study in the field of charged particle optics. It concentrates on the design of electrostatic enzil lens for focusing charge particles beams, using inverse method in designingthe electrostatic lens. The paraxial ray equation was solved to obtain the trajectory of the particles, the optical properties such as the focal length and spherical and chromatic aberration coefficients were determined. The shape of the electrode of the electrostatic lens were determined by solving poison equation and the results showed low values of spherical and chromatic aberrations, which are considered as good criteria for good design.

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Publication Date
Sun Feb 10 2019
Journal Name
Journal Of The College Of Education For Women
اﻟﺮؤى اﻟﺴﺮدﯾﺔ، وأﻧﻤﺎط اﻟﺮاوي ﻓﻲ رواﯾﺎت -ﻛﺎظﻢ اﻷﺣﻤﺪيﺑﺤﺚ ﻣﺴﺘﻞ ﻣﻦ اطﺮوﺣﺔ دﻛﺘﻮراه
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reader's mind, taking the real duals in its familiarity and hostility and the symbolic imagination as well. Most of the imaginative place comes with a symbolic dimension and the artist's characteristic ability appears so strongly in his descriptive narration; specially the (revolutionary) location such as AL QURNAWI's tea-shop where people had gathered and set out during the 1958 Revolution in its 1st part and kept this characteristic in the following 2nd and the 3rd parts; for it was- at that time- the meeting place of those independent cultured persons in which they discussed the political situation of the whole country. In his description, Al Ahmady wrote as if he was drawing by words in order to make the suspense for coming in those

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Publication Date
Sat Feb 09 2019
Journal Name
Journal Of The College Of Education For Women
اﺗﺟﺎھﺎت طﺎﻟﺑﺎت ﻛﻠﯾﺔ اﻟﺗرﺑﯾﺔ ﻟﻠﺑﻧﺎت ﻓﻲ ﺟـﺎﻣﻌﺔ ﺑﻐداد ﻧﺣو اﻷﺳﺎﻟﯾب اﻟﺗدرﯾﺳﯾﺔ اﻟﻣﻔﺿﻠﺔ
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The current study aimed at identifying the orientations of the female students of Faculty of Education for women in Baghdad University toward the different teaching methodologies and the differences in variable factor with different major, teaching phase and the interaction between them. The study sample consisted of (147) female students on whom a questionnaire composed of (36) items were applied after verifying its objective and steadiness. The results indicated that the orientations of the female students of Faculty of Education for Girls in Baghdad University toward the teaching methodologies are positive however it was negative toward the questionnaire. The results indicated also that there is difference in the orientation toward th

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Publication Date
Sat Feb 09 2019
Journal Name
Journal Of The College Of Education For Women
اﻻﻣﯾر ﻓﺧر اﻟدﯾن اﻟﻣﻌﻧﻲ اﻟﺛﺎﻧﻲ ودوره ﻓﻲ ﺗﺎرﯾﺦ ﻟﺑﻧﺎن اﻟﺣدﯾث )١٥٩٠-١٦٣٥
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This research seeks to give an objective, neutral and all-embracing examination of the prince ((Faker al Deen Almani)) as historical study , the prince regard as an important person for his active role in the Lebanese political system from 1590 till 1697. This research include three aspects , chapter 1 deals with historical inheritance of Lebanon before Amaaniya Amart and a rise of Amaanya Amart from (1516-1697). Chapter 2 devoted to the study of personality of Alamer Faker al Deen Al-Mani and his internal policy , Chapter 3 studies the foreign policy of the prince in Lebanon and his end , Finally in the conclusion , certain findings clearly summarized.

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Publication Date
Wed Sep 30 2020
Journal Name
Journal Of Accounting And Financial Studies ( Jafs )
The effect of Auditing Quality on the Earnings Quality: (An applied research in a sample of private joint stock companies listed on the Iraq Stock Exchange)
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The research aims to measure the impact of the quality of the audit on the Earnings Quality, for a sample of private joint stock companies listed on the Iraq Stock Exchange, as the research sample included (14) private and listed joint stock companies in issuing their financial statements for the period from (2010-2018), as well as companies The audit offices in charge of auditing these companies, which number (18) companies or an audit office, and the research relied on two main models for measurement, as the first model reflects the assumed relationship between independent variables represented in the characteristics of external audit quality and measuring the extent of its impact on the dependent variable represented in the Ea

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Publication Date
Mon Jan 08 2024
Journal Name
Al-academy
Evaluation of subject curriculum vocabulary Fundamentals of design from the point of view of its teachers
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The curriculum is a tool of the basic tools that seek through which educational institutions to achieve the objectives of any educational policy, and therefore must be a practical application of curriculum objectives of this policy. If, however, described the separate curricula for educational policy, that would be evidence of planning that leads to failure in achieving the great goals of society. The curriculum does not include the subject of education only, but goes to all the educational experiences that achieve the desired behavioral goals.
When goal-setting study for any of the articles should study the use of the overall goals of the article. And therefore must serve the general goals of academic material and objectives in one d

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Publication Date
Sun Feb 01 2015
Journal Name
Journal Of Engineering
Effect of Saturation of Sandy Soil on the Displacement Amplitude of Soil Foundation System under Vibration
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In this study, the response and behavior of machine foundations resting on dry and saturated sand was investigated experimentally. A physical model was manufactured to simulate steady state harmonic load at different operating frequencies. The effect of relative density, depth of embedment, foundation area as well as the imposed harmonic load was investigated. It was found that the amplitude of displacement of the foundation increases with increasing the amplitude of dynamic force and operating frequency meanwhile it decreases with increasing the relative density of sand, degree of saturation, depth of embedment and contact area of footing. The maximum displacement was noticed at 33.34 to 41.67 Hz. The maximum displacement amplitude respons

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Publication Date
Sun Feb 10 2019
Journal Name
Iraqi Journal Of Physics
A study of the effect of acid immersion on some physical properties of ( Epoxy – MgO) composites
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In this study a polymeric composite material was prepared by hand
lay-up technique from epoxy resin as a matrix and magnesium oxide
(MgO) as a reinforcement with different weight fraction (5,10,15,
and 20)% to resin. Then the prepared samples were immersed under
normal condition in H2So4(1 M) solution, for periods ranging up to
10 weeks. The result revealed that the diffusion coefficient
decreasing as the concentration of MgO increase. Also we studied
Hardness for the prepared samples before and after immersion. The
result revealed that the hardness values increase as the concentration
of MgO increase, while the hardness for the samples after immersion
in H2SO4 dec

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Crossref
Publication Date
Sat Sep 24 2022
Journal Name
International Journal Of Biomaterials
Histological Evaluation of the Effect of Local Application of Punica granatum Seed Oil on Bone Healing
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Background. Bone healing is a complex and dynamic process that represents a well-orchestrated series of biological events of cellular recruitment, proliferation, and differentiation. The use of medicinal plants in bone healing has attracted increasing interest because of their lower side effects. Punica granatum seed oil (PSO) contains high levels of phenolic compounds, promotes osteoblast function, and plays an important role in bone remodeling. A gelatin sponge (Spongostan) is a hemostatic agent that is extensively applied as scaffolds in engineering and as drug carriers in the medical field. This study aimed to evaluate the effectiveness of PSO for bone healing enhancement. Twenty adult male New Zealand rabbits, weighing an avera

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Crossref (10)
Crossref
Publication Date
Sun Feb 01 2015
Journal Name
Journal Of Engineering
Effect of Saturation of Sandy Soil on the Displacement Amplitude of Soil Foundation System under Vibration
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In this study, the response and behavior of machine foundations resting on dry and saturated sand was investigated experimentally. A physical model was manufactured to simulate steady state harmonic load at different operating frequencies. The effect of relative density, depth of embedment, foundation area as well as the imposed harmonic load was investigated. It was found that the amplitude of displacement of the foundation increases with increasing the amplitude of dynamic force and operating frequency meanwhile it decreases with increasing the relative density of sand, degree of saturation, depth of embedment and contact area of footing. The maximum displacement was noticed at 33.34 to 41.67 Hz. The maximum displaceme

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Publication Date
Fri Jan 01 2021
Journal Name
Plant Archives
STUDY OF THE EFFECT OF SPEED, DEPTH OF THE CULTIVATION AND THE NUMBER OF TIMES THE SPRING – LOADED CULTIVATOR PASSES ON SOME TECHNICAL PARAMETERS OF THE CULTIVATOR AND ON WEED CONTROL
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