Items filtered by date: November 2019

The Department of Materials Engineering at the University of Technology awarded a master's degree to the student Nada Kazem Hawi for her tagged thesis (the effect of adding molecules on some properties of acrylic resin for denture base material).

"the Effeet of Natural Partieles on some Properties of Acrylie Resin Denture Base Material"

The research dealt with the definition of polyethylene methyl acrylate resin, which is widely used in the manufacture of denture base (partial and full), with its low resistance to shock and fatigue, so several studies have been conducted to address this problem, including the current study in which overlapping materials composed of polyethylmethacrylate resin as a material Basis evaluated in minutes of powdered natural material (pistachio peel) micro (which was chemically treated with (5%) of sodium hydroxide to increase the binding with the foundation before being used as a reinforcing powder), which was added at different rates of granular sizes (53, 106, 150, 212 (Micron, and weight percentages) 3%, 6%, 9%, 12%) p Straight to me. Several tests were conducted to assess the properties of the superposed material, including mechanical and physical tests as well as other tests (Miscibility and Morphology Tests).

The results showed the following values ​​of tensile strength, percentage of elongation at fracture, bending resistance, shock resistance and surface roughness, they decreased when reinforced with pistachio husk powder, while elasticity coefficient, bending coefficient, density and water absorption increased with increasing weight percentages of pistachio husk powder. However, the values ​​of hardness and compressive strength will increase with increasing the weight of the pistachio husk powder added to all the granular volumes used and reaching the highest values ​​at the weight ratio (9%) but will decrease after that percentage. The results of the infrared test showed that there is no deviation of the peaks or new peaks of the overlapping samples by adding pistachio husks powder. Pistachios suggest a transition from brittle to semi-elongated behavior. The results were statistically discussed using a computer program (SPSS) to determine the most effective values ​​on the properties of pure methyl acrylate.

The discussion committee consisted of Prof. Intisar Jamil Ismail from the Faculty of Isra University and Chairman Ahmed Fadel Hamza from the University of Babylon, Mayada Shanan Abdul members, Prof. Jawad Kazem Alaiwi and Prof. Qahtan Adnan Hamad supervisors are from the University of Technology and Prof. Ammar Ali Hussein of the Central Technical University as a scientific component and Lec. Mayada Rahim Issa as a linguist.

 

 

 

Published in Master theses

Lecturers from Laser and Optoelectronics Engineering Department at the University of Technology, assist.Prof.Dr. Ayad Z. Mohammed, assist.Prof.Dr Mohammed G. Abdul Razzaq ,Lec. Khaled S. Shabib and assist.Prof.Dr. Abdullah K. Abbas Research tagged (A new approach to evaluate temperature distribution and stress fracture within solid state lasers) in (optical and Quantum Electronics) magazine which is issued by the Cernaker Foundation and is based within the Clafette base with high impact factor.

The research dealt with finding a new method to calculate the maximum permissible pumping power before fracture or failure in solid state lasers based on a new thermal mathematical model and two dimensions, which allows construction, design and manufacture of solid state lasers with advanced specifications.

 

 

 

Published in universtiy news

Published in the Department of Laser Engineering and Optoelectronics at the University of Technology.

Lec.Khaled Salem Shabib and in partnership with the student Duha Shaker Abed scientific research entitled (Finding optical specifications for tissue using the inverse method of heat transfer) And with high impact coefficient.

The research dealt with finding the optical characteristics of the tissues using the inverse method of heat transfer, which makes it possible to know the laser behavior when interfering with the tissues.

 

 

 

Published in universtiy news

Lecturer from the Department of Laser Engineering and Optoelectronics at the University of Technology Prof. Iyad Zuwain Mohammed and in partnership with Waddah Hatem Salem of the Ministry of Science and Technology patents entitled (passive optical control programmed for protection and monitoring systems)

The patent included the construction of a model that demonstrates the idea of ​​laser fence systems in a simple way, which is the visual communication between the detection and the computer. The optical communication is a new idea for this project in order to reduce the cost required and to increase the speed of communication. Visual protection and surveillance of places of special interest and mission and high accuracy and around the clock and various difficult weather conditions and remote areas.

 

 

 

Published in universtiy news

Prof. Iyad Zuwain Mohammed, Mohamed Galal Abdel Razzaq and lec. Khaled Salem Shabib participated in a scientific research entitled (Efficient optical fiber sensor for measuring Fe element in liquid) ) In the magazine (optical materials) issued by the Ambassador Foundation (ELSEVIER) and indexed within the Clafit base and high impact factor.

The research dealt with the construction of a precision sensor to detect iron ions in different concentrations in liquids using optical technology with very efficient optical fibers and distinct sensitivity limits, thus allowing for the construction of new optical sensors.

 

 

 

Published in universtiy news
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