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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
دﻻﻟﺔ اﻟﺘﻮظﯿﻒ اﻟﻠﻮﻧﻲ ﻓﻲ ﺷﻌﺮ ﻏﺎدة اﻟﺴﻤﺎن
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This research tackles the semantic function of colors in the poetry of Gada Al Samman, in the introduction the research explores the difference in the semantic colors for people and the function of these colors in arising the feelings for the human spirit and its influence on that spirit. The research tackles the poems of this poetess that are full of symbolic colors that convey positive and negative meanings related to the poetess herself. In addition the research shows the functions of colors in her poetry through the compatibility of colors by employing colors in her poetry in terms of compatibility with the vision of community to denote colors. Beside using the function of colors contrast by employing the colors in different meaning

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Publication Date
Sat Feb 09 2019
Journal Name
Journal Of The College Of Education For Women
ﺗﺎرﯾﺦ اﻷﺣزاب اﻟﺳﯾﺎﺳﯾﺔ ﻓﻲ ﻧﺎﻣﯾﺑﯾﺎ ﺣﺗﻰ اﻻﺳﺗﻘﻼل
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wealth which has, as well as the factors which entered the national consciousness of thousands of the continent 2. has not been possible to continue the national resistance in Namibia means spontaneous first and in light of the factors of national awareness of the new has taken sweeping the continent during the interwar period in the thirties and forties of the last century, marked by the return of a lot of educated Africans who have received their education in the countries of Western Europe, where traders who looktoa life of freedomenjoyed bythe people ofWaldo.. As well as awareness of labor represented by the working class and the work of strikes and mass anti-exploitation, which was subjected to factor in the region in wages and lack

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Publication Date
Sun Feb 10 2019
Journal Name
Journal Of The College Of Education For Women
دوراﻟﺮوﺿﺔ ﻓﻲ ﺗﻨﻤﯿﺔ اﻟﻘﯿﻢ اﻟﺨﻠﻘﯿﺔ ﻟﺪى اﻷطﻔﺎل
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The role of kindergarten in the development of moral values of children" The child moral education in institutions of basic education considered as the priority of values and social goals of methodical education , and consideringto how the child be in the kindergarten of susceptibility to absorb and configuration and modification of experiences, thus the kindergartens are important because of their influence in the formation of his character through reincarnation of the personality of those who manage education and try to imitate their values and attitudes and standards of right and wrong. This is also happen through his exercise of educational activities until he has moral insight which enables him to distinguish between good and evil b

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Publication Date
Sat Feb 09 2019
Journal Name
Journal Of The College Of Education For Women
Employment and Societal Changes in Iraq Challenges and Policies
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This study attempts to focus on there lation ship between employment policies andsocietal changesinIraq.Theconstruction ofoperational policyincommunitiesin crisis remains fraught with challenges and risks, especially in countries that have longoutstanding conflict sand crises, it is important in this context to achieve those policy and build the foundations of human security and poverty alleviation, unemployment, to find effective ways to help the community to achieve stability and reduce the risk of renew edorrepeat the cycleofviolence-butthatwouldrequirearadicalrethinking, including rethinking the way evaluating therisksandchallengesand management.And thatsuchaprojectshouldbe based ona clear roadmap, andthevisionsofdevelopmentanda clea

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Publication Date
Sun Feb 10 2019
Journal Name
Journal Of The College Of Education For Women
ﻣﺷﻛﻠﺔ اﻟﺻﺣراء اﻟﻐرﺑﯾﺔ دراﺳﺔ ﻓﻲ اﺑﻌﺎدھﺎ اﻟﺟﯾوﺑوﻟوﺗﯾﻛﯾﺔ
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The Maghreb Did not know modern problem more complex and dangerous than the problem of Western Sahara, which is the first obstacle in front of building Arab Maghreb, did not enter Post-independence governments in attrition mutual since liberation wars until today, as happened with this problem between Morocco and Algeria supporting the Polisario Front separatist and did not know the end after so, this research focused on the show dimensional geopolitical to this problem and reveal the role of regional and international behind its continuation and the latest developments after the revolutions Arab Spring and its impact on the problem and the end of UN mission new to the Sahara and results.

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Publication Date
Wed Mar 29 2023
Journal Name
Journal Of The College Of Education For Women
Language Ecology or Ecolinguistics: Conceptual and Theoretical Discussions
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Language ecology is the interactions between the environment and language. Such a discipline, ‘language ecology’ or ‘ecolinguistics has been founded by Einar Haugen’. Accordingly,  the study aims at qualitatively reviewing the theoretical and conceptual issues surrounding the subject of language ecology  by tracing the roots of language ecology. It further highlights the fundamental inconsistencies between how the concept of ecology is perceived in sociology and biology, and is applied to language, particularly, transposing the main central concepts of bio-ecology, such as relationship/interaction, environment, and organism to human language and theory of ecological-linguistic. The theory wavers among placing the focus

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Crossref
Publication Date
Wed Nov 01 2017
Journal Name
Journal Of Economics And Administrative Sciences
" employees voices behaviors: Theoretical concepts and thinking approaches
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The concept of employees voice has received a great deal of attention by researchers in the field of organizational behavior and human resources management especially in the last three decades of the twentieth century , this importance has deep ranges limits in terms of its discussion history, so it became a behavioral variable received a great attention and care in managerial and organizational studied and basic pillar in the success and excellence of organizations in maintaining its human resources, the research explain the concept and benefits of paying attention to the voice of employees in business organizations , and the theories interpreted to employees voicing and clearing the motivations behind employees voicing, and dis

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Crossref
Publication Date
Wed Mar 15 2023
Journal Name
Al-academy
Visual Appeal and Reflection in the Design of the Advertising
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Advertising is an important and influential tool in various commercial operations, as it represents a means of communication that depends on influencing individuals or society as a whole, working on a link between the producer and the consumer, so the importance of advertising appears in two dimensions, the first is economic represented in its role in achieving economic growth for the facility, while the social dimension lies in its role By influencing the behaviors and ideas of individuals, and from here it appears to us the importance of formulating, organizing and designing the advertising message that advertising agencies resort to in their advertising campaigns. Orientation, definition, and raising the level of the advertising messa

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Crossref
Publication Date
Sun Mar 02 2008
Journal Name
Baghdad Science Journal
Calculations of Signal to Noise Ratio (SNR) for Free Space Optical Communication Systems
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In this paper, we calculate and measure the SNR theoretically and experimental for digital full duplex optical communication systems for different ranges in free space, the system consists of transmitter and receiver in each side. The semiconductor laser (pointer) was used as a carrier wave in free space with the specification is 5mW power and 650nm wavelength. The type of optical detector was used a PIN with area 1mm2 and responsively 0.4A/W for this wavelength. The results show a high quality optical communication system for different range from (300-1300)m with different bit rat (60-140)kbit/sec is achieved with best values of the signal to noise ratio (SNR).

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Crossref
Publication Date
Thu May 18 2023
Journal Name
Journal Of Engineering
Place Identity in Defining Urban Space of Border Rivers in Historical City Centres
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In the city, building space could transform to be as place, because architecture does not include only traditional values such as housing, human protection, stability, etc, but could carry other dimensions beyond the housing or building occupancy or develop urban design. Rivers had vision in motion as a way to show dynamic processes in its flowing slowly, which are simply measured in time and the life of citizens. The research consider the river path in traditional cities as Alley connecting the spaces of the city ... old Baghdad was characterized by this property and it is look like Venice in the past, while traditional European cities were able to preserve this property till now, and capable to take transformation of the city with deve

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