The PhD student (Lara Imad Youssef) discussed her thesis entitled (Using 3D Printing for Prosthetics Composite). The discussion was held in the discussion hall/building B / Department of Materials Engineering / University of Technology on Wednesday (30/10/2024). The discussion committee was formed of the teaching staff listed:

The thesis was evaluating scientifically by Assist. Prof. Dr. Ghanem Shaker Sadiq, Assist. Prof. Dr. Ban Ayoub Youssef and linguistically by Assist. Prof. Dr. Khaled Khader Abbas.

 Abstract

 This study aimed to creating a new innovative foot using composite filament by a 3D printer. Tensile and hardness tests were conducted on the prepared samples, in addition to fatigue, dorsiflexion and ground reaction force tests for the prosthetic foot and a comparison was made between the newly prosthetic-feet and the (SACH) foot. The results showed that a newly designed Prosthetic-Foot surpasses (SACH) foot in terms of performance, cost-effectiveness, longevity, dorsiflexion angle, stability, weight and comfort for the amputee.

The MSc student (Rusel Ali Tariq) discussed her thesis entitled (Improvement the skin care product by polymer addition). The discussion was held in the discussion hall/building B / Department of Materials Engineering / University of Technology on Thursday (7/11/2024). The discussion committee was formed of the teaching staff listed:

The thesis was evaluating scientifically by Assist. Prof. Dr. Wafaa Kamel Mahmoud, Assist. Prof. Dr. Ammar Imad Kazim and linguistically by Lect. Dr Ali Abdul Karim Mohsen.

Abstract

 The study aimed to manufacture a cream to treat second-degree burns using plant and herbal extracts such as Moringa herb, St. John's wort, aloe vera, okra and fish collagen to obtain a cream that avoids side effects and reduces the use of chemicals. The results showed that all the prepared creams had similar viscosity except for the aloe vera and okra sample, and that the chemical tests such as pH values were within the normal range that the skin can tolerate, and the biological tests such as the animal study and the histological test proved the efficiency of these creams in treating burns and restoring almost all layers of the skin.

The Department of Materials Engineering at the University of Technology awarded a PhD to researcher Dalia Mohamed Jumaa on Sunday 3/11/2024 in the Graduate Studies Hall in Building B for her thesis entitled:

“Multiple optimization of mechanical and biocompatible properties of nanocomposite"

This research uses biopolymer materials to develop skin tissue engineering scaffolds for therapeutic use. These scaffolds aim to address the limits of skin transplantation, facilitate wound healing, and restore damaged skin tissue.

Scaffolds created from Bio-nanocomposite materials that are biodegradable poly (ε-caprolactone), chitosan and polyvinyl alcohol-reinforced with adding Zinc oxide and titanium dioxide- have been prepared via solvent casting, electrospinning technique. Aims of this Study Fabrication wound dressing material as bio-composite has been applied to improve the healing process commonly characterisation biocompatibility, biodegradability, and non-toxicity and design biodegradable biomaterials when fabrication of nanofiber tissue scaffolds loaded with antibiotic, and used Taguchi method astatistical approach used to optimize mechanical biolog properties .

The discussion committee consisted of Prof. Dr. Farhad Mohammed Othman Attia as Chairman and the membership of Prof. Dr. Nabaa Sattar Radhi, Assist. Prof. Dr. Laith Qais Abbas, Assistant Professor Dr. Mohammed Osama Abbas, Assist. Prof. Dr. Naseer Abdul Hussein Nasser. The thesis was supervised by Prof. Dr. Abbas Khamas Hussein, Assist. Prof. Dr. Jamal Jalal Daoud. The thesis was scientifically evaluated by Prof. Dr. Firas Farhan Sayed Salman, Assist. Prof. Dr. Hussein Ibrahim Khalaf, and linguistically by Assist. Prof. Dr. Laith Waddah Ismail.

The Department of Materials Engineering at the University of Technology awarded a PhD to researcher Lamis Salam Faeq on Thursday, 31/10/2024, in the Graduate Studies Hall in Building B for her thesis entitled:

“Development of Microwave Dielectric Materials with Low Loss Factor"

Abstract

The study aimed to obtain lightweight, high-performance materials for use in wireless communication and high-frequency applications. A composite material composed of ceramic reinforced with polymer was prepared to achieve a balance between the excellent dielectric properties of ceramics and the mechanical flexibility of polymers. Three types of crystalline structures (scheelite, wolframite, and perovskite) were added at 5% and 10% concentrations to three types of polymers: epoxy, polyurethane, and silicone rubber.The ceramic compounds were prepared using solid-state reactions and include Zn1-xCuxWO4 (x=0, 0.03), Ba1-xMgxWO4 (x=0, 0.4), Ba2MgWO6, Ba2ZnWO6, Bi2Mo0.5W0.5O6, (1-x)CaWO4-xNa2WO4 (x=0, 0.2, 0.4), and (Na0.5Bi0.5)(Mo0.5W0.5)O4 (x=0.5). Characterization techniques such as X-ray diffraction (XRD) and atomic force microscopy (AFM) were used to study the crystal structure, phase formation, and surface of the oxidized materials. The dielectric properties of the composites were determined using a vector network analyzer (VNA) within the frequency range of 4-8 GHz. A mathematical model known as the Nicholson-Ross-Weir (NRW) model was used to convert the measured scattering parameters to dielectric constant and loss tangent. The results showed that composites containing 10% ceramics provided higher performance compared to 5%, especially in the frequency range of 7-7.98 GHz. These composites exhibit enhanced dielectric properties, frequency stability, and minimal signal loss, making them suitable for high-frequency applications.

The discussion committee consisted of Prof. Dr. Alaa Abdel Hassan Attia as Chairman and the membership of Prof. Dr. Ghazi Kamal Saeed, Prof. Dr. Hussein Alaa Jaber, Asst. Prof. Dr. Mayada Shanan Abdul, Asst. Prof. Dr. Alaa Abdul Mohammed. The thesis was supervised by Prof. Dr. Fadel Abbas Hashem, Prof. Dr. Saad Badri Hassoun. The thesis was scientifically evaluated by Prof. Dr. Shihab Ahmed Zidane, Asst. Prof. Dr. Hanaa Shukr Mahmoud, and linguistically by Asst. Prof. Dr. Gamal Jalal Daoud.

As part of the extracurricular activities of the General Materials Engineering Branch and the Ceramics Engineering Branch, and based on the principle of enhancing the applied and practical side of the students of the two branches, the Materials Engineering Department, General Materials Engineering Branch, Headed by the Head of the General Materials Engineering Branch, Assist. Prof. Dr. Jamal Jalal Daoud, and the Head of the Ceramics Branch, Assist. Prof. Dr. Heba Anwar Abdullah and the attendance of members of the teaching staff and students of the two branches on a scientific field trip to the Building Research Department of the Ministry of Construction, Housing and Public Municipalities on Wednesday, 30/10/ 2024, where they were received by the Director General of the Department, Senior Chief Engineer Hussein Faraj Abdul Sahib, the respected Head of the Roads Department, Eng. Masoud Amir Ismail, the respected Head of the Planning and Follow-up Department, Eng. Ahmed Jabbar Mohsen, and the Deputy Head of the Glass and Insulating Materials Department, Eng. Zeina Faisal Khader, who explained and presented all the practical details. The visit included getting to know all the departments of the center, laboratories and workshops in the center. At the end of the scientific visit, Assist. Prof. Dr. Jamal Jalal and Assist. Prof. Dr. Heba Anwar, praised the efforts made, the good reception and the benefit achieved from such visits in order to gain knowledge and experience.