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.
This work investigates generating of pure phase Faujasite-type zeolite Y at the ranges chosen for this study via a static aging step in the absence of seeds synthesis. Nano-sized crystals may result when LUDOX AS-40 is used as a silica source for gel composition of range 6 and the crystallization step may be conducted for a period of 4 to 19 hr at 100 ⁰C. Moreover, large-crystals with high crystallinity pure phase Y zeolite can be obtained at hereinabove conditions but when hydrous sodium metasilicate is used as a silica source. The other selected ranges also offer pure phase Y zeolite at the same controlled conditions.
Purpose - This study relies on the descriptive and analytical approach through collecting and analyzing the necessary data, as this approach focuses on polling the opinions of the research sample and its directions, and aims to develop a model that studies the relationship between knowledge creation and organizational ambidexterity in Iraqi private banks and verifying its validity experimentally. Design / Methodology / Introduction - A survey was conducted through a questionnaire form to collect data from a sample of (113) managers in private commercial banks. In addition, this study used the AMOS program and the ready-to-use statistical program package (SPSS V.25) to test the proposed hypotheses of the theoretical model experimentally. Res
... Show MoreThe present study aims at identifying the effect of organizational pressure with its aspects (management, work team, nature and conditions of work, external environment) on job performance in all its dimensions (commitment and effort made, capabilities and the rapidity of performance, motivation and job satisfaction, work environment) for the university teacher at the Faculty of Economics, Commercial and Management Sciences at the University of Djelfa, Algeria.
In this research, the descriptive analytical approach is used. Data was collected through the distribution of a questionnaire to a sample that included 130 permanent teachers before being analyzed using the (SPSS) statisti
... Show MoreThe research addresses a pattern of imagery which is regarded a Prominent feature of Abi Tamaam's Poetry (the image of implicit simile) which is based on the hidden signified and the signifier which can be deduced out of context . The investigation requires a study whose proof is based on imagery which is of three types: natural proof , human proof and Quran proof . After handling the realistic structures of this image, the researcher has shifted attention to its types and has dealt with the psychological domain , dividing it in two types: the sensory image and the mental image. The research is directed towards studying the implicit sentence regarding its styles of expression : declarative expression and composition expression . The
... Show MoreThe research tackles the monetary policy of the Abassynian state in Baghdad – the center of the Abassynian caliphate in her last days. This age lasts for morethan eight decades . success – sively four caliphates ruled throuyhout these decades. First. ALNaser Ledeen Alah. AL- Daher Be Amer Alah, AL- mustanser Be-Alah then ALmustausem Be-Alah. This caliphate witnessed a sense of release from the boundage of the Salju guian supremqcy which resulted in an interest in coinage of money (Dinarsamd derhem) and engraving it usiny new forms and new weight that reflects the states monetary independence and national sovereignity being an essencial means for treating in the ex– change of trading between people. Caliphat e also made sure of prot
... Show MoreThe 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
... Show MoreSubject of research is the tolerance and the social fairness in the islamic civilization forthe imams of Ahl al-Bayt (peace be upon them), one of the places value and wide in the dimensions of intellectual and practical, the principle of equality and tolerance with people is an integral part of ethics required in the social and economic relations, politics and all walks of life systems the general components of the Islamic civilization. Which witnessed in the proposals and applications imams of Ahl al-Bayt (peace be upon them) this impotance and reasons were behind my choice for this subject grabbed in my research: equality and religious tolerance with the people of disclosure, and reviewed the tolerance of the faithful Ali bin Abi Talib
... Show Morereader'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
... Show MoreThis investigation was carried out to examin the effect of addition of dried bread (db) in different percentages on the sensory and microbial properties of the Chickpeas with Tehena (C T) . The results revealed that adding 0% (than db in the CT) ( treatment A ) control gained high significan different than that of other adding percentages in texture and appearance . And showed that of adding 5% (than db in the CT) (treatment B ) gained high significan different than that of other adding percentages in flavor , colour and overall acceptance. The adding 15% (than db in the CT) ( treatment C) showed that gained high significan different than adding 25 and 35 % (than db in the CT) (treatments D and E ) than all sensory properties . And addin
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