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Hot Press Bonding of Aluminum Alloy AA6061-T6 to Polyamide and Polyamide Composites
Abstract<p>In this study, aluminum alloyAA6061-T6 was joined by a hot press process with three types of material; polyamide PA 6.6 (nylon), 1% carbon nanotube/PA6.6 and 30% carbon fiber/PA6.6 composites. Three parameters were considered in the hot pressing; temperature (180, 200 and 220°C), pressure (2, 3, 4, 5 and 6 bar) and time of pressing (1, 2, 3, 4 and 5 minutes for 200ºC, and 0.25, 0.5, 0.75, 1 and 1.25 minutes for220ºC). Applied pressure has great effect on shear strength of the joint, corresponding to bonding time and temperature. Maximum shear strength was 8.89MPa obtained for PA6.6 at bonding conditions of 4 bar, 220ºC and 0.75 minute. For 30% carbon fiber/PA6,6 shear recorded was 8MPa at 4 bar, 220°C and 1 minute, while 1% carbon nanotube/PA6.6 was registered at 8MPa at 4 bar, 220ºC and 0.75 minute. Mechanical interlocking of polyimide in anodizing surface is 8μm approximately. The melting point and glass transmission temperature of polyimide and composites are decreased after hot pressing.</p>
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Publication Date
Thu Mar 03 2016
Journal Name
Journal Of Baghdad College Of Dentistry
Publication Date
Sat Oct 08 2022
Journal Name
Aro-the Scientific Journal Of Koya University
Data Analytics and Techniques

Big data of different types, such as texts and images, are rapidly generated from the internet and other applications. Dealing with this data using traditional methods is not practical since it is available in various sizes, types, and processing speed requirements. Therefore, data analytics has become an important tool because only meaningful information is analyzed and extracted, which makes it essential for big data applications to analyze and extract useful information. This paper presents several innovative methods that use data analytics techniques to improve the analysis process and data management. Furthermore, this paper discusses how the revolution of data analytics based on artificial intelligence algorithms might provide

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Publication Date
Sun Jan 01 2023
Journal Name
Heart Transplantation
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Publication Date
Sat Feb 02 2019
Journal Name
Journal Of The College Of Education For Women
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Publication Date
Sat Dec 24 2022
Journal Name
Journal Of Legal Sciences
Tax Breaks and Investment

Iraq alerts to the fact that it is necessary to keep pace with globalization and the need to attract foreign investment, in the hope that it will find a solution or it will be possible for it to control its economic problems, the most important of which is the problem of unemployment. incentives such as tax breaks.

  So it is necessary to study those exemptions and study their role in encouraging foreign investment in Iraq.

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Publication Date
Sun May 14 2017
Journal Name
Ibn Al-haitham Journal For Pure And Applied Sciences
Annsemimaximal and Coannsemimaximal Modules

        Some authors studied modules with annihilator of every nonzero submodule is prime, primary or maximal. In this paper, we introduce and study annsemimaximal and coannsemimaximal modules, where an R-module M is called annsemimaximal (resp. coannsemimaximal) if annRN (resp. ) is semimaximal ideal of R for each nonzero submodule N of M.

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Publication Date
Mon Jul 01 2013
Journal Name
Political Sciences Journal
Democracy and human security

Since the widespread use of the concept of human security in 1994, and as stated in the report of human development (UNDP) issued by the United Nations Development Programmer,And framed it with multiple dimensions of political, economical, social and cultural. This concept has became beyond the state and its security ,and covered all what, can threaten human life and humanitarian groups, according to the humanitarian needs in the following aspects: The economic, the food,health,environmental , individual, community and the political aspect,which totally means ,the disability of the security traditional perspective to deal with these issues.The achievement of human security,that handles the maintenance of human dignity for meeting their b

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Publication Date
Tue Nov 19 2024
Journal Name
Al–bahith Al–a'alami
Television and Agenda Building

Most media studies on the development of the agenda have focused on the relationship between the content of the media and the audience of these media, and the extent of its impact on the agenda of the media, in addition to comparing it to the extent of interest in the agenda of those means. While in the construction of the agenda, we focus on the relationship between news sources and the media and the role of these sources in the process Building the agenda.These sources are institutions, parties, pressure groups, interest groups, the head of state and other media. The impact of these sources on the process of building the agenda are shown through the process of the selection of resources by the channel and communicators, and the technic

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Publication Date
Sat Feb 02 2019
Journal Name
Journal Of The College Of Education For Women
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Publication Date
Sun Apr 03 2005
Journal Name
Journal Of The Faculty Of Medicine Baghdad
Gastrintestinal Manifestation and Alcoholic

Background: Alcohol remains the single most significant Cause of liver disease throughout the Western World, responsible for between 40 and 80% of cases of cirrhosis in different countries. Many of the factors underlying the development of alcoholic liver injwy remain unknown, and significant questions remain about the value of even very basic therapeutic strategies.
Patients and Methods: A total number of 113 patients with ALD attending the Gastroenterology and Hepatology teaching hospital between December 2001 and December 2003 were studied for the gastrointestinal, esophagogastroduodenoscopic manifestation of alcoholic liver disease.
Results.'The most common presenting symptom was jaundice (62.8%), anorexia, weight loss (39.8-54

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