،يريغت وأ ةلكشم وأ ةثداح ةجيتن ،ةعمالجا وأ درفلا هذختي فقوم هرهوج في ماعلا يأرلا دعي ةيوبرت تماكارتو ،ةيرثك تانوكم لىع هسسأ في موقي وهف اذل ،ةشاعلما ةايلحا تاقايس في لصيح فيو ،عمتمج يلأ يعماتجلاا لعفلا ةيصوصخ تاقايس بسحب يرسي ايرطف نوكي ام اهنم ،ةيفاقثو يعولا ةلاح تيبثت ديرت تاهج نم ةلعتفمو ةعنطصم تايطعمب اهيريست وأ اهذحش متي ىرخأ نايحأ ليكشت ةيلمع تنترقا ذل ،ةثدالحا كلت مهف ةأطو ليلقت وأ يريغت وأ فرح وأ ينعم مهف لىع ،يعمتجلما ةعيبط بسحب ،اهرفاوت ةروضرو اتهوقو اتهدش في فلتتخ ،ةعونتم تاودأو تاددحمب ماعلا يأرلا اهنكتم ،ةرهاظو ةنماك تاودلأ يرثأتلا تاهج كلاتما رادقمو هتوقو ثدلحا ةعيبط نع لاضف ،عمتجلما . هفرح وأ ماعلا يأرلا ليكشت ةداعأ نم ةناماو قدصب اهرودب موقت نا ةفلتخلما ملاعلاا لئاسو لىع ضرفت ملاعلاا تايقلاخا نا رابخا نم همدقت ام للاخ نم ملاعلاا لئاسو تحبصا ةقحلاتلما ثادحلال ةجيتن نكل ، ةيعوضومو نع لاضف اهفلاتخاو ءارلاا ددعت ببسب للضم ماع يأر ليكشت لىا يرهمالجا ةدايق لواتح تامولعمو ةيلمع لىع موقت ،قارعلا اهنم صخلأابو انتاعمتمج في ماعلا يأرلا عنص ةيلمع نا ماك ،حلاصلما براضت ،يربكلا فياقثلا حاتفنلإا عم تمهسا دق ثادحلأا ةبوعص كلذك تلاخدلما في ةوقلا ةديدش شيوشت تتاب ذا ،شيوشتلا كلذ لكل سيسأتلا في ،ةفلتخلما ملاعلإا لئاسو اهتنبت يتلا ةيعاصرلا ةلالحاو قيقحتل ةدع تلاماتساو بيلاسلأ اهفيظوت برع يملاعلإا ليلضتلا ةيلمع سراتم ملاعلاا لئاسو ماعلا يأرلا لىع رثؤت وا عدتخ نا ةنيعم ةلاسر لاصيا برع نكمي ذا مدقلما يملاعلإا طاشنلا نم فدلها ةلكشم نإف هيلع و ،ةفلتخلما ةيملاعلإا داولما برع دمع نع ةللضم وا ةزاحنم تامولعم شرنب كلذو :يه تلاؤاست في تروحتم دق ثحبلا ؟ةفلتخلما ملاعلاا لئاسو في روهملجا هل ضرعتي يذلا ىوتحلما في يملاعلإا ليلضتلا تاشرؤم ام ؟ماعلا يأرلا ليكشت في يرثأتلل يملاعلإا ليلضتلا في ةمدختسلما بيلاسلأا ام لئاسو اهسراتم يتلا ليلضتلا بيلاسأ نع فشكلاب ثحبلل سياسلاا فدلها لثتم ينح في ثحبلا نم فدلها قيقتح لىا لوصوللو ،ماعلا يأرلا في يرثأتلل ةمدقلما تامولعلما برع ملاعلاا بيلاسأ ةفرعم لىا لوصولل نايبتسلاا ةادأب ةناعتسلاا برع يحسلما جهنلما لىع ناتثحابلا تدمتعا دادغب ةنيدم روهمجب لثمتي ثحبلا عمتمج امأ ،ماعلا يأرلا في اهيرثأتو يملاعلإا ليلضتلا ةسرامم
The paper is concerned with, the behavior of the hydrostatic thrust bearings lubricated with liquid-solid lubricants using Einstein viscosity formula, and taking into account the centrifugal force resulting from high speed. Also studied is the effect of the bearing dimensions on the pressure, flow rate, load capacity, shear stress, power consumption and stiffness.
The theoretical results show an increase in load capacity by (8.3%) in the presence of solid graphite particles with concentration of (16%) by weight as compared with pure oil, with increasing shear stress. .
In general the performance of hydrostatic thrust bearings improve for load carrying capacity, volume flow rate,
... Show MoreThe Internet, networks and the means of communication in the world of communication and information have greatly influenced all aspects of the information cycle until things have been turned upside down, and it has even been said that today the world can be separated into two worlds: the world of pre-internet and post-Internet.
Perhaps one of the most important data of the Internet in the world of information and journalism is electronic publishing, which comes blogging as one of its forms. Blogs, which have begun slowly in the form of personal diaries, developed and spread on the Internet very quickly and started to have its own universe, the world of blogging. It has begun to make its way in the world of journali
... Show MoreThe main objective of controlling companies Concentration is to prevent their potential anti-competitive effects on the competitive structure of the relevant market, in order to protect freedom of competition in it. In this context, it is necessary to verify that these operations do not impede effective competition or reduce it significantly by making it less than it was before, it is necessary to Anticipate all the effects In order to achieve the goal of controlling on it and revealing their potential restrictive effects. So there must be Auditing Norms that enable the authorities entrusted with the protection of competition and the prevention of monopolistic practices to evaluate these effects and determine their positive and negative as
... Show MoreThe importance of television has emerged as an effective and influential force in the lives of societies and peoples, And not just a professional media since the fifties of the twentieth century, It was used as a platform to achieve the goals and objectives of the media and politics for governments, agencies and individuals in different countries of the world, Using many methods, methods and techniques that later became important major subjects and curricula and a scientific specialization that was founded for him to study and teach in most international universities, The media, especially television and satellite channels, play an active and significant role in managing crises and conflicts and directing them through the methods of deal
... Show MoreThe main aim of this paper is to study how the different estimators of the two unknown parameters (shape and scale parameter) of a generalized exponential distribution behave for different sample sizes and for different parameter values. In particular,
. Maximum Likelihood, Percentile and Ordinary Least Square estimators had been implemented for different sample sizes (small, medium, and large) and assumed several contrasts initial values for the two parameters. Two indicators of performance Mean Square Error and Mean Percentile Error were used and the comparisons were carried out between different methods of estimation by using monte carlo simulation technique .. It was obse
... Show MoreThe research discusses the mechanism for analyzing the salary scale in the public sector through an analysis of grades, their stages, occupants and their financial entitlements, and the extent to which the information obtained for their investment in strategic planning, conducting correction and treatment can be used. The salaries of the employees in them, whose number is (1117) employees, to be a field of research, as the salary structure in it for the year 2019 was analyzed by relying on a number of statistical tools in the analysis process, including the arithmetic circles, upper limits, minimum limits and percentage, and with
... Show MoreThe main aim of this paper is to study how the different estimators of the two unknown parameters (shape and scale parameter) of a generalized exponential distribution behave for different sample sizes and for different parameter values. In particular,
. Maximum Likelihood, Percentile and Ordinary Least Square estimators had been implemented for different sample sizes (small, medium, and large) and assumed several contrasts initial values for the two parameters. Two indicators of performance Mean Square Error and Mean Percentile Error were used and the comparisons were carried out between different methods of estimation by using monte carlo simulation techniq
... Show Moreبناء على ما تقدم يتضح ان القطاع العام والقطاع الخاص ليسا موقفا ايدولوجيا انتقائيا، وانما هو انبثاق من العمود الفقري للصيرورة الرأسمالية القائمة على تقديس الملكية الخاصة، وان الادوار التي يمكن ان يلعباها ليسا منعزلين عن الحركة العامة للاقتصاد في كليته، وليس هما ابنا السياسات الاقتصادية، والبناء الفوقي بقدر ماهما نتاج الحركة الموضوعية وصيرورة التطور الاجتماعي معبرا عنها في تطور علاقات الانتاج وقوى الانتا
... Show MoreThe traffic congestion caused by the increase in the number of vehicles in the cities as a result of the increase in the population and the density of construction requires the provision of appropriate infrastructure and the provision of transport systems and logistics services that meet the needs of the population to meet the many challenges now and in the future by introducing various modes of transport , In accordance with integrated plans such as the use of (pedestrian friendly environments, bicycles and their own paths, light rail, metro, express bus, as well as public transport buses and others), through the development of Projects High-level roads, such as the annual and major roads, etc., and integrated with the urban planning of
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