Electrochemical Grinding (ECG) process is a mechanically assisted electrochemical process for material processing. The process is able to successfully machine electrically conducting harder materials at faster rate with improved surface finish and dimensional control. This research studies the effect of applied current, electrolyte concentration, spindle speed and the gap between workpiece and tool on hardness and material removal rate during electrochemical grinding for stainless steel 316. The characteristic features of the electrochemical grinding process are explored through Taguchi-design-based experimental studies. The better hardness can be obtained at 10 A of the current, 150 g/l of the electrolyte concentration, 0.3 mm of gap and spindle speed of 180 rpm, and the maximum material removal rate can be obtained at 40 A of the current, 250 g/l of the concentration, 0.2 mm of a gap and 180 rpm of spindle speed.
The aesthetic dimension in popular subjects is one of the important topics in the history and culture of peoples, as it is the vessel from which their faith, traditions, original values, language, ideas, practices and way of life are derived, which expresses their culture and national identity, and it is the bridge of communication between generations throughout the ages.
It is one of the main pillars in the process of development and development, and popular subjects have special images related to real daily life, and they are the best source for man to narrate through him in his portrayal of daily life in general, and for the artist in particular, who is part of this daily life and its vocabulary, as he interacts with it so that
... Show Moreإن أهميـة بحثنـا تتضـح مـن خـلال التطـرق إلى دراسـة المـذهب العسـكري في حقبـة الاتحـاد السـوفيتي السـابق وإبـراز الجوانـب الرئيسـة المتعلقـة بفلسـفة المـذهب العسـكري السـوفيتي ومضـامينه الاستراتيجية مــن جانــب، وفلســفة المــذهب العســكري الروســي لمرحلــة مــا بعــد الحــرب البــاردة والتغـيرات المهمـة الـتي طـرأت عليـه، ممـا أفـرز لنـا بطبيعـة الحـال مضـامين مـذهب عسـكري روسـي جديــد قــد يتقــا
... Show MoreThe cities are not yet a temporal status in the process of the human and civilization development. The cities consider as a life pattern, this mean that people cannot live without cities, which surround us. Several phenomena like globalization, revolution of information, technical development, increased of consumption, do not confirmed without the living in cities. The urbanization – in its simple meaning – means transferring from rural community to city community. In other word, it means that socioeconomic changes happened subject to the patterns and conditions of the urban life. Each government depend a certain policy, this policy contains set of plans and programs, that targeting to affect the population factors and the st
... Show Moreالرأي العام والمشاركة السياسية ودورهما في تعزيز الديمقراطية
Abstract
The research was limited to those whom Imam Abu Dawood
described in his Sunan as weak, so this research does not include
narrators who carried descriptions indicating weakness such as
ignorance or others, nor does it include hadiths that the Imam
described as weak.
The number of narrators whom Imam Abu Dawood described as
weak has reached six narrators, and my methodology was to
mention the words of Imam Abu Dawood, then transfer the
sayings of other advanced scholars, as well as the sayings of
Imam Abu Dawood in his other books, if any, to show the extent
of compatibility between these sayings.
I have reached the following resul
... Show MoreThe Andoluosian literatures has been captured my mind, and had a very
pure and great place in my spirit, which is remembering me the roots of
genuine Arabic civilization spread during eight century in endoluos region.
also the Arabic creation which is moved from east to far way land in that
ages. And very clearly appearance tremendous men interested in science and
all kind of literature and arts especially in poetry, no one who has taste and
minimum knowledge can denied the effect of indoluosan prosperity among
readers. So for that reason I work very hard to choose a very famous poet his
nick name (Al-Ramadee) he is Youseif Bin Haroon born in the first decade
of the 4TH hijri (Islamic Calendar), died in (403H).
Abstract
Heritage represents the center around which poets revolve around and take advantage of its inexhaustible specific, and the connotations that this heritage holds of various values, values and ideas, and the poet Bashar bin Bard from prominent poets who were inspired by that heritage and the culture of the first Abbasid era and whoever and others was worthy of studying and tracking his potentials and capabilities Creativity is based on the inspiration of the legacy of his predecessors, and the development of this legacy and renewal in it. The research methodology required its division into two topics, the first topic, a description of the beauty of women, a description of wine, while the second topic is a description
... Show MoreThe representations of the Holy in Christian painting Art represents a penalty of eternal relationship between any human society and sacred representations and forms that he belives in what is characterized by its clear tendency to knowledge and aclear focus on the spiritual experience that make up the human relationship with holy spirit and essence. Search has ment to study the forms of its presence in the art work of the middle ages.Research involved four shapters .first chapter includes research problem which centered around the following question;what is holy ? whats its represetations in Christian painting? And the importance and need of the study .and the goal of research and definitaions of the terms of research.Second chapter con
... Show MorePun concept the design discourse for the cover of magazines the researcher chose the German magazine Der Spiegel as a model for that, as the research problem was manifested by the following question: What are the representations of puns in the covers of the German magazine (Der Spiegel)? The researcher has identified four chapters for this study as follows: The first chapter is devoted to research procedures, and the theoretical framework, which is like the second chapter, included the literature related to the topic of research according to the two interlocutors. A review of the concept of pun in the field of typographic design and the functions that puns achieve in that field, leading to the third chapter, which included the analysis
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