Preferred Language
Articles
/
jcoeduw-1117
Space-Charge Effect on the Theoretical Design of Enzil Lens
...Show More Authors

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.

View Publication Preview PDF
Quick Preview PDF
Publication Date
Sat Feb 09 2019
Journal Name
Journal Of The College Of Education For Women
اﻷدب اﻟﺳﯾﺎﺳﻲ اﻟﺑﻐدادي ﻓﻲ اﻟﻘرن اﻟﺗﺎﺳﻊ ﻋﺷر )دراﺳﺔ ﻣﻘﺎرﻧﺔ(
...Show More Authors

Literature historians and researchers almost agree that literature is a product of the environment and it is the product of interaction of events and it affected by the direction of that environment and then the literature affects the its environment and the modern science confirms this fact until make the environment competes hereditary factor in its effect because that each environment has its characteristics which affect the literature and leaves its effect on it and even when a writer exaggerate in its monopolize and tyranny of selfin its literature, he cannot be away from affection by including around of literature because the literature is the mirror that reflects aspects of the environment. In other words, literature is expression

... Show More
View Publication Preview PDF
Publication Date
Sun Feb 10 2019
Journal Name
Journal Of The College Of Education For Women
اﻟﺴﯿﺎﺳﺔ اﻟﻌﺎﻣﺔووﺳﺎﺋﻞ ﻣﺆﺳﺴﺎت اﻟﻤﺠﺘﻤﻊ اﻟﻤﺪﻧﻲ ﻓﻲ ﺻﻨﻌﮭﺎ )دراﺳﺔ ﻧﻈﺮﯾﺔ(
...Show More Authors

This research endeavors to clarify the relationship between the general policies of the country and Civil Organizations (Cos). This requires that we first identify the concepts of making polices on the one hand, and of COs on the other hand. Initially, polices starts as personal ideas that are, later, turned by some groups of people into suggestions. When the governments adopt these suggestions, they become state policies as shown by the following: Idea ----------> Suggestion--------> Policy. COs are groups of free voluntary organizations acting to bridge the gap between the state and the public, and to respond to the latter's demands. The organizations includes, among others, trade unions and professional associations. In oth

... Show More
View Publication Preview PDF
Publication Date
Sat Feb 09 2019
Journal Name
Journal Of The College Of Education For Women
اﻹﻣﻛﺎﻧﺎت اﻟﻣﺎﺋﯾﺔ اﻟﻣﺗﺎﺣﺔ ﻓﻲ أودﯾﺔ اﻟﮭﺿﺑﺔ اﻟﻐرﺑﯾﺔ )ﺣﺻﺎد اﻟﻣﯾﺎه(
...Show More Authors

Developed the study idea to harvest torrential rains from the plateau of Western style economic cost little help to get the amount of water may exceed 2 billion m 3 per year (depending on the amount of rainfall in that year) has been exploited for agricultural projects or add water to the lakes and rivers. Adopted at the product issued by the oil company, the center (Daura Filtered) reduces the ability of soil to absorb and filter rain water to as much as possible and raise the proportion of surface runoff in addition to this that the product environment-friendly fades and evaporates within 3 years and recognized him in the states was used Successfully.

View Publication Preview PDF
Publication Date
Sun Mar 12 2017
Journal Name
Al-academy
The reality of Figure and content in the design of logos, civil society organizations
...Show More Authors

Civil society organizations in Iraq have become a community hard case dispensable as the link between the state institutions and their leaders, and between citizens of different orientations and age groups, as it represents the diversity of the terms of reference and understanding of the laws and standards of Universal Declaration of Human Rights, which requires governments to provide supplies president of its citizens to live in dignity, direct and Msasha in the life of society and the dictates we scientific our role in achieving scientific benefit and transfer of expertise to the community has become imperative for the researcher to campaign in the midst of the scientific research of the slogans of those or

... Show More
View Publication Preview PDF
Crossref
Publication Date
Tue May 16 2023
Journal Name
Journal Of Engineering
The Effect of Spatial Organization on the Sustainability of the Neighborhood Unit in the Residential Environment
...Show More Authors

Contemporary residential neighborhoods suffer from weak sustainability of urban residential environments as a result of the adoption of inefficient spatial organization at the neighborhood unit level. This resulted negative characteristics which affected the achievement of sustainable development plans for the residential environment that constitute the majority of the urban fabric of cities.

The physical affordances ,within the vocabulary of recent times,overcame the spiritual ones and affected the residential environment. Accordingly,the concept of space changed in contemporary residential areas through the dominance of the physical aspect (mass) on the symbolic aspect (space).The modern technology occupied an important level b

... Show More
View Publication Preview PDF
Crossref
Publication Date
Sun May 22 2022
Journal Name
International Journal Of Early Childhood Special Education
The impact of an instructional-learning design based on the brain- compatible model in systemic thinking among first intermediate grade female students in Mathematics
...Show More Authors

The research aimed to identify “The impact of an instructional-learning design based on the brain- compatible model in systemic thinking among first intermediate grade female students in Mathematics”, in the day schools of the second Karkh Educational directorate.In order to achieve the research objective, the following null hypothesis was formulated:There is no statistically significant difference at the significance level (0.05) among the average scores of the experimental group students who will be taught by applying an (instructional- learning) design based to on the brain–compatible model and the average scores of the control group students who will be taught through the traditional method in the systemic thinking test.The resear

... Show More
Publication Date
Wed Feb 15 2023
Journal Name
International Journal Of Emerging Technologies In Learning (ijet)
Instructional Design According to the Repulsive Learning Model and its Impact on the Achievement of Chemistry and Lateral Thinking for Third-Grade Intermediate Students
...Show More Authors

Identify the effect of an educational design according to the repulsive (allosteric) learning model on the achievement of chemistry and lateral thinking. The sample consisted of (59) students from third-grade intermediate students. They were randomly distributed into two groups (experimental and control), and the equivalence was done in (chronological age, previous achievement in chemistry, intelligence, lateral thinking). The (30) students from experimental group were taught according to the instructional design, other 29 students from the (control) group were taught according to the usual method. Two tests done, one of them is an achievement test consisted of (30) items of the type of multiple choice, the other was a lateral think

... Show More
View Publication
Scopus (1)
Crossref (2)
Scopus Crossref
Publication Date
Sun Sep 01 2019
Journal Name
Journal Of Global Pharma Technology
Calculation of Stabilization Energy of Tetrahedrane with its Nitrogen Substituted Derivatives by DFT Method and Driving an Empirical Relation Connect it with Charge Functions of the Molecule
...Show More Authors

In this work the strain energy of tetrahedrane and its nitrogen substituted molecules were calculated by isodesmic reaction method according to DFT quantum chemical fashion, the used basis set was 6-31G/B3-LYP, in addition all structures were optimized by RM1 semi-empirical method. From the obtained data we estimate an empirical equation connect between strain energy of the molecule with charge functions represented by dipole moment of the molecule plus accumulated charge density involved within the tetrahedron frame plus the number of nitrogen atoms. The results indicate the charge spreading factors by polarization and processes are the most important factors in decreasing the strain energy.

Preview PDF
Publication Date
Sun Sep 15 2019
Journal Name
Ibn Al-haitham Journal For Pure And Applied Sciences
Study on the Effect of H2 Addition to N2 on EEDF and Electron Transport Coefficients
...Show More Authors

    In this paper, we calculate the electron energy distribution function (EEDF) and transport parameters including the electron mean energy, mobility, drift velocity and diffusion coefficient for the gas mixtures of the H2 and N2 using the EEDF program. It is concentrated on the effect of assorted concentrations of the mixtures on the EEDF and the electron transport coefficients. The work exhibits the variation amongst the different mixtures on the EEDF and the transport parameter. The results are graphically offered and discussed. In this concept, it is shown that for each mixture has a specific impact on EEDF and the transport parameter. The important of this study comes from the usage of these mix

... Show More
View Publication Preview PDF
Crossref (2)
Crossref
Publication Date
Mon Aug 01 2016
Journal Name
Journal Of Economics And Administrative Sciences
The effect of managerial Process Reengineering on organizational citizenship Applied research on Electronic Industries Company
...Show More Authors

ABSTRACT

The research aims to know the reality of a two examined variables at the organization studied identifying the relationship between managerial processes reengineering and organizational citizenship behavior. The research applied on the Electronic Manufacturing Company encompassing a sample of managers and employees consisted of (100) individuals. A questionnaire is the main instrument for data gathering, which has been included (45) questions as well as personal interviews to support the questionnaire's questions and to achieve greater realism for collecting information.

Answers were analyzed to reach the final results through the use of a number of statistical methods via

... Show More
View Publication Preview PDF
Crossref