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The Effect of Oil and Filer Contents on the Porosity of Lead Acid Battery Separators Produced From Polyethylene
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                In this investigation a high density polyethylene (HDPE) was used as a substitute to polyvinylchloride in the production of lead acid battery separators. This has been achieved by preparing mixtures of different percentages of the feed materials which include a high density polyethylene (HDPE) locally produced, filler materials such as silica and oils such as dioctylphthalate (DOP) or paraffin which were added to the mixture to improve the final properties of the separator. The materials were compounded by two roll-mills under the same conditions. The following parameters are involved:                    

    1- Studying the use of a high density polyethylene as a binder to film components with     (15-30) wt.%.

    2- Studying the use of finely divided silica sand with (25-45) wt.% as a medium to oil adsorption.

3- Studying the use of two type plasticizers (Paraffin or DOP) with    (35-55) wt. %. as a creative medium to films porosity.

The best results of the feed materials in the mixture were selected so as to give the highest porosity using 15 wt. % PE, 30 wt. % filler, and 55 wt. % oil. It has been found that the films with DOP oil give higher porosity.

 

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Publication Date
Mon Sep 25 2023
Journal Name
Arab Science Heritage Journal
المرأة في الشعر الجاهلي
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          This study is concerned with providing an objective, artistic study of the role of women in the pre-Islamic era, and extracting that status from the most important sources that express the language of that era, which is pre-Islamic poetry. The role of women in contemporary societies, the study sought to clarify those goals from a technical and objective point of view, which contributed to the main purpose of the study, which is the status of women in pre-Islamic poetry. The role of women in pre-Islamic society, and how to describe them in rhetorical sentences in poetry. The study was based on the descriptive analytical approach, which is represented by the use of content analysis, wh

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Publication Date
Sun Dec 02 2007
Journal Name
Political Sciences Journal
الحول الديمقراطي في بنغلادش
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التحول الديمقراطي في بنغلادش

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Publication Date
Mon Jan 08 2024
Journal Name
Al-academy
Visual discourse in television
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Visual discourse in cinema and television is an expressive medium that carries its audio and visual elements and is effective in influencing the memory of the recipient, according to multiple patterns of forms and representations aimed at persuasion, influence, entertainment, enjoyment and knowledge. This speech will not pass by the recipient without difficulty, as the multiplicity of forms and techniques of image presentation and the diversity of contents derived from different beliefs, concepts, ideas and perceptions may sometimes reach intersections and conflicts, which is reflected in the form of the screen and the theory of television. This motivates us to know the ways in which audio-visual discourse is produced on television, whic

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Publication Date
Mon Mar 01 2004
Journal Name
Al-academy
منطق الشكل في الخزف
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منطق الشكل في الخزف

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Publication Date
Sun Jun 18 2023
Journal Name
Arab Science Heritage Journal
القيادة في المنظور الإسلامي
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There are many studies regarding the topic of ‘leadership’ in modern era, especially the studies of the west and the Muslims who followed them in our Arab countries. These studies rely on the modern western theories, they deal with topics like the difference between administration and leadership

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Publication Date
Sun Jan 01 2006
Journal Name
Journal Of The College Of Languages (jcl)
El realismo del personaje de Lazarillo de Tormes por el tratado primero "cuenta Lazaro su vida y cuyo hijo fue"
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El Lázarillo señala a fines del reinado del emperador, el comienzo de un
nuevo género en la literatura castellana. A través de sus páginas nos adentró en un
mundo de pobreza, de
hambre secular, de hipocresía, y rodeado de problemas.
Lázaro cuenta en primera persona sus aventuras comenzando por su nacimiento, en
una aceña de las riberas del río Tormes. Condenando su padre como ladrón y, su
madre se entrega al mas vil morisco - cuya conducta deja también que desea –
haber pasado hambre y le entrega, siendo todavía un niño, a un ciego de alma ruin
para que, acompañándole, se gana la vida. Para aplacar el hambre, pues el ciego le
daba poco de comer, el muchacho le hace objeto, de repetidas tretas.

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Publication Date
Sun Aug 30 2020
Journal Name
Arab Science Heritage Journal
صناعة المخطوط في العراق
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The Arab heritage is considered one of the treasures of the noble human civilizations, as it is a deep-rooted heritage, when the dawn of Islam dawned on the Arabian Peninsula, and when its conquests spanned,

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Crossref
Publication Date
Fri Feb 27 2026
Journal Name
نسق
الحارس في بلاد الرافدين
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كثيرة هي المهن في بلاد الرافدين، وهذه ظهرت للحاجة لها، واسهمت هذه المهن في تطور المجتمع والمحافظة عليه، مثال ذلك مِهنة الحارس، والذي كان عنواناً لبحثنا هذا، مُحاولين في تسليط الضوء على هذه المِهنة وأنواعها واِنتشارها على مُجمل النشاطات في بلاد الرافدين وإسهاماتها في الحِفاظ على الأمن والاِستقرار سواء كان الاِجتماعي أو الاِقتصادي على اِختلافه التجاري البرِّي والبحري، وعلى الزراعة والصِّناعة، وعلى مفاصل أ

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Publication Date
Sat Jun 28 2003
Journal Name
رسالة ماجستير
الاعياد في الاديان السماوية
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جاء تقسيم البحث على ثلاثة مباحث رئيسة يسبقها تمهيد وتعقبها خاتمة ، وتناول المبحث الواحد مطالب متسلسلة بالأرقام ، ثم قائمة بمصادر البحث ومراجعه. تناول التمهيد نظرة تاريخية للأعيان عند الأقوام ، ولاسيما عند العرب في الجاهلية، وتعريف المصطلحات التي تشكل عنوان البحث تناول المبحث الأول ، وعنوانه (الأعيان في الديانة اليهودية) ، عدد تلك الأعياد، شرح الأسباب الموجبة لكل عيد ، وتاريخ الاحتفال به وأسلوبه؛ وغير ذلك مم

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Publication Date
Wed Dec 30 2015
Journal Name
College Of Islamic Sciences
Altruism in Islamic thought
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Praise be to Allah, Lord of the Worlds, and peace and blessings be upon our Lord and Beloved Muhammad and his family and companions.
The altruistic submission of the other human himself in matters of the world satisfactory to God Almighty with his need and does not come out limit want and destruction. The approach of the Koran in the income creation altruism education for the individual curriculum that includes types of altruism, including Mahmoud and vilified. Ether world life on the hereafter is a vilified type and its consequences are sterile on the existing in the world and in the hereafter a serious consequence, which is special Madiat. On the principle and preference of the doctrine over the doctrine, the Koran has been interest

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