On Tuesday, January 14, 2025, the Dean of Erbil Technical College of Engineering, Prof. Ayad Zaki Saber with the Assistant Dean of the College Mr. Bazian Younis Mohiuddin, Director of the College Consultant Office Mr. Prof. Bahman Taha Omar and Head of Scientific Unit Mr. M.Y. Bayad Abdulqadir Ahmad, congratulated the new staff of Zerevan College who have been exchanged with the previous staff for two days and have started their new duties as new and efficient staff. During the congratulations and congratulations, the Dean of the College had a sincere discussion and exchange of national views with them, recommended the implementation of their demands, the new staff reaffirmed the cooperation and duty of security of the college. I wish you continued cooperation, appreciation and service
On the evening of January 12, 2025, Assistant Dean Dr. Tariq Waece Sadeq, accompanied by M. Rawand Sulaiman, Head of the Health and Safety Department, as well as Rebaz, the Head of the Dormitory, and the dormitory’s supervisory staff, visited the boys’ dormitory of the institute. The purpose of the visit was to closely observe the condition of the dormitory, address any deficiencies, and monitor all safety equipment, including heating systems and fire extinguishers, as well as to assess the students’ needs.
On Monday, December 23th, 2024, Dr. Kayhan Zrar Ghafour, a member of the university council and the Dean of the College of Technical Engineering of Computer and Informatics, participated as the keynote speaker in the 6th International Conference on Futuristic Trends in Networks and Computing Technologies (FTNCT’06).
The conference was held in the state of Uttarakhand, India.
Dr. Kayhan Zrar Ghafour participated with a scientific presentation under the title “Deep Q Learning for DDoS Attacks Detection in IoT Environment.”
In this dissertation, three nonlinear techniques of prestressing, analysis, and preservation were developed based on the principles of the force method to address geometric nonlinearities in pin-jointed spatial structures. These techniques provide a comprehensive framework for accurately performing prestressing, analysing, and preserving spatial assemblies, validated through rigorous numerical and experimental investigations.
The research introduces direct nonlinear approaches especially for prestressing and preservation, overcoming the limitations of iterative and linear approximation-based methods. The derived nonlinear equations, expressed as functions of joint displacements, were efficiently solved using MATLAB’s fsolve function, demonstrating robust applicability to both simple and complex spatial systems. The proposed prestressing technique computes the desired prestress level by accurately accounting for nonlinear member alterations, preventing cable slack, and maintaining alignment with software solvers under predetermined actuation conditions.
The developed analysis method is efficient and precise, capable of calculating internal member stresses and axial forces for both rigid and flexible members while incorporating geometric nonlinearities under different loading conditions. Similarly, the preservation technique reliably restores disturbed geometries, nodal displacements, and internal forces, with targeted control of specific parameters. The effectiveness of the preservation process depends on actuator placement, bar sensitivity analysis, and the appropriate selection of actuation targets.
Validation of these techniques included numerical case studies and experimental testing on a hyperbolic paraboloid space cable net model with 64 members and 41 joints. The results demonstrated strong agreement, with maximum and minimum discrepancy ratios of 7% and 0%, respectively, between theoretical and experimental measurements. This dissertation presents a novel framework that significantly enhances the precision, efficiency, and control of structural response prediction, making substantial advancements in the field of pin-jointed spatial structures.
